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要写一篇英文的简爱的影评 是BBC06年的 急求

2023-07-19 14:33:44
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S笔记

Jane Eyre — A Beautiful Soul

Jane Eyre, is a poor but aspiring, small in body but huge in soul, obscure but self-respecting girl. After we close the covers of the book, after having a long journey of the spirit, Jane Eyre, a marvelous figure, has left us so much to recall and to think:

We remember her goodness: for someone who lost arms and blinded in eyes, for someone who despised her for her ordinariness, and even for someone who had hurt her deeply in the past.

We remember her pursuit of justice. It"s like a companion with the goodness. But still, a virtuous person should promote the goodness on one side and must check the badness on the other side.

We remember her self-respect and the clear situation on equality. In her opinion, everyone is the same at the God"s feet. Though there are differences in status、in property and also in appearance, but all the human being are equal in personality.

We also remember her striving for life, her toughness and her confidence…

When we think of this girl, what she gave us was not a pretty face or a transcendent temperament that make us admire deeply, but a huge charm of her personality.

Actually, she wasn"t pretty, and of course, the ordinary appearance didn"t make others feel good of her, even her own aunt felt disgusted with it. And some others even thought that she was easy to look down on and to tease, so when Miss Ingram met Jane Eyre, she seemed quite contemptuous, for that she was obviously much more prettier than ‘the plain and ugly governess". But as the little governess had said: ‘Do you think, because I am poor, obscure, plain, and little, I am soulless and heartless? You think wrong!" This is the idea of equality in Jane Eyre"s mind. God hadn"t given her beauty and wealth, but instead, God gave her a kind mind and a thinking brain. Her idea of equality and self-respect impress us so much and let us feel the power inside her body.

In my mind, though a person"s beauty on the face can make others once feel that one is attractive and charming, if his or her mind isn"t the same beautiful as the appearance, such as beauty cannot last for, when others find that the beauty which had charmed them was only a falsity, it"s not true, they will like the person no more. For a long time, only a person"s great virtue, a noble soul, a beautiful heart can be called as AN EVERLASTING BEAUTY, just as Kahill Gibran has said, that ‘Beauty is a heart enflamed and a soul enchanted". I can feel that how beauty really is, as we are all fleshly men, so we can"t distinguish whether a man is of nobleness or humbleness, but fleshly men, so we can"t distinguish whether a man is of nobleness or humbleness, but as there are great differences in our souls, and from that, we can know that whether a man is noble or ordinary, and even obscure, that is, whether he is beautiful or not.

Her story makes us thinking about life and we learn much from her experience, at least, that is a fresh new recognition of the real beauty.

瑞瑞爱吃桃

The Independent Spirit——about“ Jane Eyer”

This is a story about a special and unreserved woman who has been exposed to a hostile environment but continuously and fearlessly struggling for her ideal life. The story can be interpreted as a symbol of the independent spirit.

It seems to me that many readers" English reading experience starts with Jane Eyer. I am of no exception. As we refer to the movie “Jane Eyer”, it is not surprising to find some differences because of its being filmized and retold in a new way, but the spirit of the novel remains----to be an independent person, both physically and mentally.

Jane Eyer was a born resister, whose parents went off when she was very young, and her aunt,the only relative she had,treated her as badly as a ragtag. Since Jane"s education in Lowwood Orphanage began, she didn"t get what she had been expecting——simply being regarded as a common person, just the same as any other girl around. The suffers from being humiliated and devastated teach Jane to be persevering and prize dignity over anything else.As a reward of revolting the ruthless oppression, Jane got a chance to be a tutor in Thornfield Garden. There she made the acquaintance of lovely Adele and that garden"s owner, Rochester, a man with warm heart despite a cold face outside. Jane expected to change the life from then on, but fate had decided otherwise: After Jane and Rochester fell in love with each other and got down to get marry, she unfortunately came to know in fact Rochester had got a legal wife, who seemed to be the shadow following Rochester and led to his moodiness all the time ----Rochester was also a despairing person in need of salvation. Jane did want to give him a hand, however, she made up her mind to leave, because she didn"t want to betray her own principles, because she was Jane Eyer. The film has finally got a symbolist end: Jane inherited a large number of legacies and finally returned. After finding Rochester"s misfortune brought by his original mad wife, Jane chose to stay with him forever.

I don"t know what others feel, but frankly speaking, I would rather regard the section that Jane began her teaching job in Thornfield as the film"s end----especially when I heard Jane"s words “Never in my life have I been awaken so happily.” For one thing, this ideal and brand-new beginning of life was what Jane had been imagining for long as a suffering person; for another, this should be what the audiences with my views hoped her to get. But the professional judgment of producing films reminded me to wait for a totally different result: There must be something wrong coming with the excellence----perhaps not only should another section be added to enrich the story, but also we may see from the next transition of Jane"s life that “Life is like a box of chocolates, you never know what you would get.” (By Forrest Gump"s mother, in the film “Forrest Gump”)

What"s more, this film didn"t end when Jane left Thornfield. For Jane Eyer herself, there should always be somewhere to realize her great ideal of being independent considering her fortitude, but for Rochester, how he can get salvation? The film gives the answer tentatively: Jane eventually got back to Rochester. In fact, when Jane met Rochester for the first time, she scared his horse and made his heel strained, to a certain extent, which meant Rochester would get retrieval because of Jane. We can consider Rochester"s experiences as that of religion meaning. The fire by his frantic wife was the punishment for the cynicism early in his life. After it, Rochester got the mercy of the God and the love of the woman whom he loved. Here we can say: human nature and divinity get united perfectly in order to let such a story accord with the requirements of both two sides. The value of this film may be due to its efforts to explore a new way for the development of humanism under the faith of religion.

Life is ceaselessly changing, but our living principles remain. Firmly persisting for the rights of being independent gives us enough confidence and courage, which is like the beacon over the capriccioso sea of life. In the world of the film, we have found the stories of ourselves, which makes us so concerned about the fate of the dramatis personae.

In this era of rapid social and technological change leading to increasing life complexity and psychological displacement, both physical and mental effects on us call for a balance. We are likely to find ourselves bogged down in the Sargasso Sea of information overload and living unconsciousness. It"s our spirit that makes the life meaningful.

或另一篇

:《简爱》英文读后感

Another interesting aspect of the novel is the character Bertha Mason. Bronte herself, alluding to the latest developments in Victorian psychiatric theory, attributed Bertha"s behavior to “moral madness” (qtd. in Showalter 73). Women were thought to be more susceptible to such disorders. Sexual appetite was considered one of the chief symptoms of moral insanity in women; it was subject to severe sanctions and was regarded as abnormal or pathological. According to Showalter, the periodicity of Bertha"s attack suggests a connection to the menstrual cycle, which many Victorian physicians understood as a system for the control of female sexuality. Rochester"s complicity in the destruction of his wife"s spirit is indicated in Jane"s recognition of the third story"s resemblance to a corridor in “Blubeard"s castle” (Bronte 138). In trying to persuade her to become his mistress, Rochester asks, “If you were mad, do you think I should hate you?” “I do indeed, sir,” Jane replies, and she is surely right (Bronte 328). Bertha"s death, “the purging of the lusts of the flesh,” must precede any successful union between Rochester and Jane. When they finally marry, they become equals, “not only because Rochester, in losing his hand and his sight, has leaned how it feels to be helpless and how to accept help, but also because Jane, in destroying the dark passion of her own psyche, has become truly her ‘own mistress"” (Showalter 75).

As a conclusion, Charlotte Bronte"s Jane Eyre is unambiguously one of the most well written novels with profound themes. It has influenced generations of readers, appealing to both children and adults, women and men.

或A Fairy Tale

‘WE ARE EQUAL!" When these three words came out of the plain-looking girl"s mouth, the whole world was shocked.

We have good reason to be shocked——deprived of family happiness from an early age, with neither beauty nor wealth to speak of, Jane Eyre seems to be never destined to become the heroine shining in the spotlight we often read about in romances——but is there really such a thing called destiny? At least Jane doesn"t think so. She is not pretty; she is not rich; she is a mere ordinary governess, so what? As an individual human existence, she has dignity as well as anyone else, so she deserves the chance to love and to be loved as well as anyone else! Despite her short, delicate body, her soul is not the least weaker than others"——even greater than most of them. The moment she said the three powerful words to Mr. Rochester proudly and steadily, her pale face must have been sparkling with sacredness, which would have made her the most beautiful woman ever, because the beauty of independence is eternal. With this spirit of independence she not only gained herself love, respect and happiness but also proved to the world that nobody is second class——unless you believe yourself to be.

Hundreds of thousands of ordinary girls that usually get neglected in life——me included——love and admire Jane deeply because she inspires and encourages us to strive for our life goals against all odds bravely. She is a role model, an idol in our hearts but at the same time a friend, a big sister next door who"s not at all cold and distant, always ready and willing to stand by our side whenever we are in trouble. Every time when I feel inferior, puzzled and lose faith in myself and the strength to carry on the life path already chosen, Jane, my dear friend"s determined face and forceful words on that serene summer night would emerge inside my mind, which never failed to relight my fire of passion. Oh, how I long to be like her.

But it"s not that I totally believe in her life story, by which I mean I don"t think the story of hers can happen to anybody. To me, it"s somewhat like a fairy tale that begins with ‘long long ago" and ends with ‘ever after", in which the prince and princess, though having suffered much in the process of getting together, would always end up in a harmonious marriage and enjoy all the best life has to offer. Being an obscure girl herself, the author Charlotte Bronte was so generous as to have provided our dear Jane a Mr. Rochester who loves her just the way she is, appreciates her unique character and a kindhearted family (later proved to be her relatives) that took her in when she was helpless and offered her a job to support herself. In reality, not every Jane Eyre can meet the proper people at the right time, just as not every ugly duckling can turn into a graceful swan——it may depend on a matter of luck. If you are too obsessed with fairy tales, you are very likely to feel disappointed and deceived by the not-so-perfect everyday life. But what are fairy tales for? We love to read them and we tend to believe in them even though we know they are not real. Sometimes we do need a little romantic daydream as seasonings in the routine of life, and we also need an ideal to believe in, a creed to live by, and a northern star to show us directions on the long journey.

That"s maybe what Jane Eyre is for——it gives numerous common girls a possibility to look forward to, a life to reach for, and above all, a positive attitude to face all odds to encounter. Perhaps we can"t all have her luck, but we can have her independence, confidence, persistence, the courage of standing up to fight for ourselves against those seemingly taller than us, and the faith that we can finally win because WE ARE EQUAL.

或 Mr Brocklehurst is a hypocrite who believes the girls at his school should be humble and not have any luxuries at all so their souls will be pure. Mr Brocklehurst is a hypocrite because he says the girls in his school should not have luxuries and be humble but in his house and family have a vast amount of luxuries and are not humble, so that makes him a hypocrite and does not practice what he preaches.

The best example of Mr Brocklehurst being a hypocrite is when he tells off Julia Severn for having curly hair even though it curls naturally and says her hair will have to be cut off "Naturally! Yes, but we are not to conform to nature. I wish children to be the children of Grace: and why that abundance? I have again and again intimated that I desire the hair to be arranged closely, modestly, plainly. Miss Temple that Girls hair must be cut off entirely" but then Mr Brocklehurst"s family (wife and two daughters) come in and they have lovely fur clothes and have curls in their hair and some are even fake curls, so this shows Mr Brocklehurst"s hypocrisy at it"s best. Mr Brocklehurst was very nasty to Jane. She accidentally broke a slate and was noticed by Mr Brocklehurst who brought her up to the front and told everyone she was a liar, due to what Mrs Reed told him about her and Mr Brocklehurst told everyone to exclude her from their conversations and ignore her and don"t be friends with her. He made Jane look like an evil girl and humiliated her and ruined her fresh start at the school. Miss Temple told Jane not to be frightened and breaking the slate was an accident but she did not know what Mr Brocklehurst was going to say about her.

awakening, he delights in Marion"s attention, he feels a valued member of the family. The anxiety and inferiority he felt are dispelled by Marion"s interest. After mass when he realises who Trimingham is and what status he holds, he begins, unwittingly to act as a go between - the main thrust of the novel. Trimingham asks Leo to run in ahead with a message for Marian. Meanwhile the doctor has declared Marcus infectious and Leo has been moved out of their shared bedroom. He now has a room to himself - Leo is now alone, as Jane is, in a strange environment. In the next chapters, Leo"s role as a go between is compounded. Marion, Ted and Trimingham, all three central characters, ask him to take messages - he is happy and self important by his status and treatment by what he sees as his superiors - Marian and Trimingham. Leo cannot bring himself to be critical of Marion in that he blocks out reality and does not read anything into the situation. He looks only to please his elders and seems to be finding a father figure in Hugh - The character he comes to admire and trust the most during his stay. Leo is starting to mistrust his role but when the annual cricket match is announced and Marion suggests he extent his visit by a week, his initial happiness returns. The match quickly becomes a contest, not just of cricket but also over Marion. A player is injured and Leo finds himself acting as a substitute fielder, and as the match reaches crisis point with Trimingham bowling to Ted, Leo catches Ted out. Leo is in control of the game - he is once again important - as Jane is when she refuses Mr. Rochester.

可乐
* 回复内容中包含的链接未经审核,可能存在风险,暂不予完整展示!
声明以下不是我写的.请参考:
http://www.bbc.co.uk/drama/janeeyre/
http://www.i**.com/title/tt0780362/usercomments

"Never before have I watched characters with such passion, or felt that I truly knew a character personally.

I experienced every moment of happiness, heartache, belonging and fear which Ruth Wilson portrayed so fantastically as Jane. A true credit to the acting profession, I hope to see many more outstanding performances by her.

Equally, the ever unpredictable Edward Rochester"s character shone through perfectly due to the never ending talent of Toby Stephens.

This is undoubtedly the best period drama to date. I look forward to the DVD and hopefully a few BAFTAs."

"Having never previously seen an adaptation of Jane Eyre, or read the novel, I find myself wishing for Sunday evening to arrive so I can see the next episode. However I equally don"t want to see an end to a truly wonderful drama.

This episode was fantastic - from finding out that Jane had an uncle, to her confession of love to Rochester, and vice versa, to the revelation of another wife, it was all beautifully done. When Rochester was explaining the story of how he had come to marry, it was very easy to feel compassion for him."

"I had thought Ruth Wilson"s performance slightly dominated this adaptation. However, this episode saw Toby Stephens really shine. He was absolutely superb, going from schemer to giddy lover to despairing self-loathing man.

I"ve thoroughly enjoyed this adaptation, mainly because of the great actors and the chemistry between them. This has risen above any minor quibbles in details being left out. Sunday nights have never been so good."

"I"m a purist when it comes to Jane Eyre, my favourite novel, and I"m disappointed at the modernisation of almost all of the dialogue, which in the original is moving and humorous in places.

Having said that, I"m enjoying the episodes. I like the cast and it can be appreciated for its own sake.

Toby Stephens is the right age to play Rochester and has captured his charm and wit, as well as his rougher side.

Ruth Wilson is an excellent Jane, except that she isn"t outspoken enough - her character has been muted. However, I look forward to the next episode, when I expect the romance will become more intense."

"Having seen all previous adaptations of Jane Eyre, I was sceptical that a new and innovative "take" on the story could be achieved. However, I was mistaken. The new version is vibrant and shows the characters much more in synch with the text than all other versions.

The casting is also inspired - Toby (despite the critics) and Ruth are excellent and extremely well matched."

"I"m really enjoying this version, although I agree with some viewers that the script is a tad dumbed down and misses some of the subtlety of the novel.

The relationship between Jane and Rochester is believable, they really do connect despite their different backgrounds.

I"ve always disliked previous Rochesters who have been played as bellowing brutes. Toby Stephens is tortured, sarcastic, self-pitying, charming and as real as the Rochester in the book.

I thought the mad wife was a little too pretty. In the book she"s lost her looks and is fairly hideous. Perhaps a little more mad snarling wouldn"t have gone amiss."

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2023-07-18 23:23:584

丝虫的幼虫生活史

当蚊叮吸带有微丝蚴的患者血液时,微丝蚴随血液进行蚊胃,约经1~7小时,脱去鞘膜,穿过胃壁经血腔侵入胸肌,在胸肌内经2~4天,虫体活动减弱,缩短变粗,形似腊肠,称腊肠期幼虫。其后虫体继续发育,又变为细长,内部组织分化,其间蜕皮2次,发育为活跃的感染期丝状蚴。丝状蚴离开胸肌,又变为细长,内部组织分化,其间蜕皮2次,发育为活跃的感染期丝状蚴。丝状蚴离开胸肌,进入蚊血腔,其中大多数到达蚊的下唇,当蚊再次叮人吸血时,幼虫自蚊下唇逸出,经吸血伤口或正常皮肤侵入人体。在蚊体寄生阶段,幼虫仅进行发育并无增殖。微丝蚴侵入蚊体后很多在胃内即可被消灭,有的可随蚊的排泄物排出,最后能形成感染期幼虫而到达蚊下唇者为数不多。微丝蚴对蚊体也有一定影响,如机械损害,吸取蚊体营养等。患者血液中微丝蚴密度较高,可使已感染的蚊死亡率增高。故有人认为微丝蚴在血液中的密度须达到15条/20mm³血以上时,才能使蚊受染,多于100条/20mm³时,常可致蚊死亡。微丝蚴在蚊体内发育所需的时间,与温度和湿度有关。最适合的温度为20~30℃,相对湿度为75%~90%。在此温、湿度条件下,班氏微丝蚴在易感蚊体内约需10~14天发育成感染期丝状蚴,马来微丝蚴则需6~6.5天。温度高于35℃或低于10℃,则不利于丝虫幼虫在蚊体的发育。感染期丝状蚴入侵人体时,也需较高的温、湿度。 感染期丝状蚴进入人体后的具体移行途径,至今尚未完全清楚。一般认为,幼虫可迅速侵入附近的淋巴管,再移行至大淋巴管及淋巴结,幼虫在此再经2次蜕皮发育为成虫。雌雄成虫常互相缠绕在一起,以淋巴液为食。成虫交配后,雌虫产出微丝蚴,微丝蚴可停留在淋巴系统内,但大多随淋巴液进入血循环。自感染期幼虫侵入人体至发育为成虫产生微丝蚴所需的时间,过去认为班氏丝虫约需1年,但检查患者淋巴结组织,最早于感染后3个月即可查到成虫。据我国学者用周期型马来丝虫丝状蚴人工感染长爪沙鼠的观察,雌虫于接种后57天即发育成熟,63天在鼠腹腔液中可查见微丝蚴。两种丝虫成虫寄生于人体淋巴系统的部位有所不同。班氏丝虫除寄生于浅部淋巴系统外,多寄生于深部淋巴系统中,主要见于下肢、阴囊、精索、腹股沟、腹腔、肾盂等处。马来丝虫多寄生于上、下肢浅部淋巴系统,以下肢为多见。此外两种丝虫均可有异位寄生,如眼前房、乳房、肺、脾、心包等处,以班氏丝虫较多见。微丝蚴除可在外周血液发现外,也有在乳糜尿,乳糜胸腔积液、心包积液和骨髓内等查到的报道。两种丝虫成虫的寿命一般为4~10年,个别可长达40年。微丝蚴的寿命一般约为2~3个月,有人认为可活2年以上。在实验动物体内微丝蚴可活9个月以上,在体外4℃下可活6周。人是班氏丝虫唯一的终宿主。但国内外学者用班氏丝虫的感染期幼虫人工感染黑脊叶猴、银叶猴及恒河猴后,均可检获到成虫及微丝蚴。Cross(1973)应用台湾猴作人工感染实验,结果可在猴体发育为成虫,且在末梢血液中检获微丝蚴。马来丝虫除寄生于人体外,还能在多种脊椎动物体内发育成熟。在国外,能自然感染亚周期型马来丝虫的动物,有长尾猴、黑叶猴、群叶猴和叶猴,以及家猫、豹猫、野猫、狸猫、麝猫、穿山甲等,其中叶猴感染率可达70%。它们所引起的森林动物丝虫病,为重要的动物源疾病,可发生动物至人的传播。国内于70年代用周期型马来丝虫接种长爪沙鼠获得成功,建立了动物模型。接种后第57天,雌虫发育成熟,第60和90天可分别在沙鼠腹腔液和外周血液检到微丝蚴。此外,实验证明周期型马来丝虫可在人与恒河猴间相互感染,在恒河猴与长爪沙鼠间亦可相互感染,提示我国似乎亦存在动物传染源的可能性。人感染丝虫主要是由蚊叮剌吸血经皮肤感染的。在丝虫病动物模型研究中,发现感染期幼虫经口感染亦能成功;还发现从落入水中的死蚊体逸出的感染期幼虫经口或皮肤接种沙鼠均可获成功,提示可能还有其他的感染途径。根据微丝蚴在外周血液中出现的时间,可将班氏丝虫和马来丝虫分为夜现周期型和亚周期型。周期型的微丝蚴在人体外周血液中的出现有一定的周期性,一般为夜多昼少,它们白天滞留在肺毛细血管中,夜晚则出现于外周血液,这种现象称夜现周期性(nocturnal  periodicity)。两种微丝蚴在外周血液中出现的高峰时间略有不同,班氏微丝蚴为晚上10时至次晨2时,马来微丝蚴为晚上8时至次晨4时。世界上流行的丝虫大多具有明显的夜现周期性,但少数地区其周期性可不明显,有些地区的患者无论昼夜均可查到微丝蚴,未见明显高峰。班丝虫还有昼现亚周期型。此外,感染度低者其高峰期也相对地推迟。关于微丝蚴夜现周期性的机制至今尚未阐明。有人认为与宿主的中枢神经系统、特别是迷走神经的兴奋、抑制有关。如果丝虫感染者换成夜间工作白天睡眠,经过一段时间后,末梢血液中微丝蚴的出现规律就会颠倒过来,以中午为最多。这是提示微丝蚴的周期性与宿主中枢神经系统的兴奋、抑制有关。进一步的实验证明,注射抑制迷走神经的阿托品,会使血中的微丝蚴减少,反之注射兴奋迷走神经的毛果芸香碱或乙酰胆碱,血中微丝蚴就会增多。人在睡眠时,迷走神经的兴奋度增高,使内脏毛细血管扩张,因此微丝蚴就易从肺毛细血管移行到周期血循环;反之,在人清醒时,迷走神经兴奋度减弱,内脏毛细血管收缩,微丝蚴就不能进入外周血液。也有人认为微丝蚴的夜现周期性与宿主肺血氧含量有关,当夜晚给患者吸氧时,可导致外周血中微丝蚴密度下降;而在白天给低氧时,密度就可升高。进一步的实验证明,控制微丝蚴聚集在肺内的有效刺激不是那里氧压的绝对水平,而是肺动脉内静脉血和肺静脉内的动物血两者间的氧张力之差。当氧张力差在7.3kPa(55mmHg)或更高时,微丝蚴聚集于肺血管内;差异下降到接近5.9kPa(44mmHg)或更低时,微丝蚴则移行至外周血液。国外学者还发现夜现周期性与微丝蚴体内的自发荧光有关。夜现周期性明显的微丝蚴不经染色即可见到弥漫的自发荧光及大量荧光颗粒,而周期性不明显的则体内荧光颗粒较少,有些无周期性及昼现周期性的虫种则无荧光颗粒。上述资料表明,微丝蚴的周期性与宿主的因素有关,也和微丝蚴自身的生物学特点有关。总之,周期性现象产生的原因是复杂的,这是寄生虫与宿主长期互相适应的结果,进一步阐明其机制仍有待深入探讨。此外,国外学者在观察丝虫病人及动物模型中,均发现外周血液中的微丝蚴还具有季节周期性,夏、秋季的密度高于冬、春季,与蚊媒活动季节相吻合,这在流行病学调查中值得注意。
2023-07-18 23:24:061

潮汐是每月一次还是每天一次?

很多小伙伴在童年的时候都是很有好奇心的,会好奇世界上的许多事物,比如很多人都好奇晚上天上那轮亮亮的东西是什么,后来才知道那是月亮,而且跟地球有着密不可分的关系。因为万有引力的存在,地球和月球也是有吸引力的,而且还不是一个小的数值,毕竟两者的体量都很大,而地球上出现的潮汐就是由地月吸引力引起的,地月吸引力使得地球岩石圈、水圈和大气圈中会产生周期性的运动和变化,被称为“潮汐”,分为地潮、海潮和气潮。
2023-07-18 23:24:2013

全球流体活动的非线性

地球内部的活动性主要反映为地内流体的活动性,这种活动性主要服从什么规律呢?对于这个问题已经争论了几百年(例如突变论与渐变论之争)。目前,我们虽然接受了物理学家Kelvin的演化地球观点,但是演化的规律性问题仍然没有解决。自从海底扩张和板块构造学说广泛传播以来,对流均衡说无形中得到进一步的推广。例如,解释大洋扩张原因的地幔对流说被提了出来,开始是地幔热对流,然后是地幔物质对流,Maruyama又将它推广到全球物质对流上,至于冷而重的物质如何能穿过2500km厚的刚性中幔圈到达地核,却没有任何解释。我们承认消减的大洋板块可插入到流变的软流圈底下直到上下地幔的界面,并诱发深源地震,但不能想象它在上下地幔分界处的“积累块体”可以穿透坚固的中幔层进入地核,而不发生相应的更深源的动力学破坏作用(目前没有这方面的地球物理证据)。从已有的地球物理的资料看,以下观点是可以接受的:(1)地球内部流体活动的来源主要是地球内部的热能和动能、势能,尤其是地球外核散发的热能和动能。在流体运动过程中产生化学分异的化学能,及重力势能和地球自转的离心势能也起到重要作用。(2)以地球外核和软流圈为主要聚集区,地球内部的流体通道像人体的动脉系统一样,是整体连通的,几何形态可能是分形的。但是,这种流体通道网络的空间位置是随时间变化的,从几十亿年的时间尺度上看,随着地球热量散发,地球收缩,流体通道系统也将逐渐萎缩。对地球内部流体通道为分形网络的推测,主要依据为地表断裂的研究。Barton和Larsen(1985)将内华达雅卡山附近的基岩清洗干净,然后把其中的断裂成图,确定其分维数为1.7左右,这一结果与该区构造图上的断裂系统分维数一致。此外,地震、火山等活动的几何分布与分形网有许多类似(Korvin,1992),而且地球流体通道网没有明显的特征尺度,都使我们推测后者是分形网络。由于分形是非线性现象的几何表现,因此流体活动应与非线性系统有关。(3)地球内部流体活动属于开放的非线性系统。关于开放系统的问题似乎不难接受。许多人接受了大气圈中的气体来源于地球内部的假说(如Dott等,1998)。早期地球广泛发育的火山、热泉从地球中带出大量的气体和液体,最后形成大气圈和海洋,这一过程现在还在延续,只不过规模减小而已。直到现在,还没发现大量气体回流入地球内部的证据。此外,地球不断向外散发热量。因此,地球流体系统不是封闭的。在开放的热动力学系统中,物理化学平衡的保持必须依靠持续的外力供给(Hao,1984)。目前还没有发现可维持地核液体活动平衡的外力,因此固体地球总体演化是不可逆的和不均衡的,不必把地幔质量均衡作为先决条件,来推断“冷羽柱”的存在。当然。我们也注意到,刚性的中幔圈对液体地核有相当的屏蔽作用而造成一种准封闭的边界,因此外核中含有较长期的对流发育,造成能量及物质成分的相对均衡。类似地,在冷硬的岩石圈下的软流圈处于半封闭状态.可维持时间较短的对流与局部的均衡。但是,对于巨厚的中幔层躯干,全球性的对流和物质流动是不可设想的。地球内流体活动的非线性具体表现在间歇、相变、分岔、伪周期等不规则运动上。这些问题需要另拟文讨论,本文仅举少许例子。火山爆发是间歇(intermittency)的典型例子。地磁极倒转是典型的分叉(bifurcation)。由于地磁场是由地球外核中的导电液体运动产生的,地磁极倒转的分叉反映的是外核中液体运动的非线性规律,它可以近似表示为二次的映射方程。根据浑沌理论预测,如果液体运动的控制参数改变,则地磁场方向将进一步分叉,最后导致浑沌,这也许是随地球热量散失、外核逐渐减薄到极限状态时,将会发生的情况。相变在地核液体上涌的同时发生,铁镁硅酸盐等高熔点的物质将首先凝结为固相,碱金属的硅酸盐及金属硫化物岩浆将进一步上涌.在相变发生过程中挥发分将分异出来。相变是一种突变,一旦相变发生,动力学系统的边界条件将发生改变而造成失稳,从而诱发间歇和分叉。地质现象伪周期性(Quasiperiodicity),是自然界令人迷惑不解的问题之一。全球生物灭绝和岩浆活动是否存在一个大约26~30Ma的周期(Shaw,1981;Kalia,1982)?造山旋回是不是周期性发生?地震活动是否存在周期性的旋回?全球海平面变化的周期是多少?这些问题都与非线性理论中的伪周期性有关。伪周期性指是貌似重复发生但在时空上都具有不确定性的现象,地质术语“旋回”在某种意义上等效于伪周期性,它是介于周期性与浑沌之间的一个概念。对于像地球这样具有多层次多要素的复杂系统来说,各种层次和要素之间的相互作用和耦合的结果,其演化轨道必然不是简单的周期性所能表述的,伪周期性必然存在。我们注意到,浑沌理论中的相空间展开和演化轨道追踪技术是研究地球系统伪周期性的一种重要途径。尤其值得注意的是演化轨道中不断收缩的伪周期轨道(吸引子)的研究,将使我们较精细地理解地质演化的本质和地质旋回的含义。
2023-07-18 23:25:131

Alevel化学都学什么!越详细越好!最好AQA考试局的!!!跪谢!

  Alevel化学包含物理化学、无机化学、有机化学三部分。  1、物理化学部分  物理化学部分包括:原子结构物质数量、黏结、热力学、动力学、化学平衡、勒夏泰尔原理和钾c、氧化、还原和氧化还原方程式、热力学、速率方程、平衡常数p对于同质系统、电极电位和电化学电池、酸和碱。  2、无机化学部分  无机化学部分包括:元素周期表、碱土金属、第7(17)族,卤素、周期3元素及其氧化物的性质、过渡金属、水溶液中离子的反应。  3、有机化学部分  有机化学部分包括:有机化学导论、烷类、卤代烷烃、烯属烃、醇类、有机分析、光学异构、醛和酮、羧酸及其行生物、芳香化学、胺类、聚合物、氨基酸、蛋白质和DNA、有机合成、核磁共振光谱学、层析法。
2023-07-18 23:25:232

求教: 如何修改SAP的Posting Period?

MMPV开物料账期
2023-07-18 23:25:423

关于世界睡眠日的英语版

World Sleep Day 这个是它的英文由来哈“world sleep date” origin to enhance the people to the sleep important understanding, the international mental hygiene and the neuroscience foundation has sponsored the global sleep and the health plan initiated a global activity - - “the world sleep date”, and places it every year spring the first day - - on March 21. “the world sleep date” decides in every year"s on March 21, because of the spring the first day, the season transformation"s periodicity and sleep"s day and nights rule is closely linked alternately with ours daily life. According to the World Health Organization carries on the investigation to 14 national 25916 in the basic unit medical service seeing a doctor"s patient, discovered that has 27% people to have the sleep question. The vigilance is very big to quality of life"s negative influence, but quite many patients have not obtained the reasonable diagnosis and the treatment. “the world sleep date” is a person for the hypothesis day, this day"s hypothesis, is not the human who lets the world lays down the work in this day, all goes to sleep safely, when the human who lets the world attention all should sleep cannot have a good sleep thought. The scientists tell us. This group of people are a substantial number, approximately some 20%-30% adults contract the vigilance.
2023-07-18 23:25:511

看进来看进来^^翻译^,求化学英语翻译(对我很重要的翻译)

Group IVA consists of a nonmetal, carbon, two metalloids, silicon and germanium, and two metals, tin and lead. Each of these elements forms some compounds with formulas which indicate that four other atoms are present per group IVA atom, as, for example, carbon tetrachloride, GCl4. The group IVB metals —titanium, zirconium, and hafnium —also forms compounds in which each group IVB atom is combined with four other atoms; these compounds are nonelectrolytes when pure.第四主族包括非金属碳、两种半金属硅和锗、两种金属锡和铅。这些元素可以和其它元素形成一些一比四的化合物,例如,四氯化碳CCl4。第四副族金属钛、锆、铪在形成化合物时,同样是每个原子与四个其它原子结合。这些化合物在纯态时为非电解质。 The elements of group V A include three nonmetals — nitrogen, phosphorus, and arsenic—and two metals — antimony and bismuth. Although compounds with the formulas N2O5, PCl5, and AsCl5 exist, none of them is ionic. These elements do form compounds-nitrides, phosphides, and arsenides — in which ions having charges of minus three occur. The elements of group VB are all metals. These elements form such a variety of different compounds that their characteristics are not easily generalized.第五主族包括三种非金属---氮磷砷,两种金属锑和铋。N2O5, PCl5, AsCl5这样的化合物虽然存在,但它们都不是离子化合物。氮磷砷容易形成的是氮化物、磷化物和砷化物,在这些化合物中,氮磷砷均呈现为负三价离子。第五副族均为金属元素,它们形成的化合物极为庞杂,其性质难以简单归纳。 With the exception of polonium, the elements of group VIA are typical nonmetals. They are sometimes known, as the, chalcogens, from the Greek word meaning "ash formers". In their binary compounds with metals they exist as ions having a charge of 2-. The elements of group ⅦA are all nonmetals and are known as the halogens. from the Greek term meaning "salt formers.” They are the most reactive nonmetals and are capable of reacting with practically all the metals and with most nonmetals, including each other. The elements of groups ⅥB, ⅦB, and VIIIB are all metals. They form such a wide Variety of compounds that it is not practical at this point to present any examples as being typical of the behavior of the respective groups. 除了钋以外,第六主族的元素都是典型的非金属。有时它们也可称为硫属元素(chalcogens),chalcogens这个词来源于希腊语“可以形成灰的东西”。在与金属的二元化合物中,它们以负二价离子的形式存在。第七主族的元素均为非金属,也称为卤素(Halogens)。Halogens一词来源于希腊语“可以形成盐的东西”。它们是最活泼的非金属,可以和所有金属以及大部分非金属反应。卤素之间也可相互反应。第六、七、八副族元素均为金属。它们形成的化合物也极为庞杂,在本书目前阶段想要提出一些典型实例来说明各族的性质是不切实际的。 The periodicity of chemical behavior is illustrated by the fact that. excluding the first period, each period begins with a very reactive metal. Successive element along the period show decreasing metallic character, eventually becoming nonmetals, and finally, in group ⅦA, a very reactive nonmetal is found. Each period ends with a member of the noble gas family.元素化学性质的周期性可说明如下:除第一周期外,每一周期都以很活泼的金属开始,沿着该周期向右元素的金属性逐步减弱,到后来就变为非金属,最终我们在周期表上看到的是第七主族的活泼非金属。每一周期最末尾的元素构成了稀有气体族。
2023-07-18 23:27:111

什么事周期性?

比如:潮水涨落,每天时间_____
2023-07-18 23:27:294

春天植物的变化过程?

应该是…..........伏
2023-07-18 23:27:382

数学类课程的英文名称?

absolute geometry绝对几何(学)affine (differential) geometry仿射(微分)几何(学)algebraic geometry代数几何(学)always safe geometry【核】恒安全几何条件analytic(al) geometry解析几何analytical geometry of three dimensions立体[空间, 三维]解析几何学astral geometry星形几何bad geometry【核】不利几何条件beam geometry波束几何形状cascade geometry叶栅几何参数cell geometry电解槽的几何形状chamber geometry燃烧室几何形状circle geometry圆几何学colour geometry色几何(学)combinatorial geometry组合几何学complex (analytic) geometry复(解析)几何(学)conformal differential geometry保形微分几何学constructive geometry作图几何学continuous geometry连续几何counting geometry计数几何条件crossed-beam geometry交叉波束几何cylindrical geometry圆柱几何体demonstrative geometry论证几何学descriptive geometry画法几何detector geometry检测器几何形状device geometry器件几何图形differential geometry微分几何double elliptic geometry二重椭圆几何elementary geometry初等几何(学)elliptic non-Euclidean geometry椭园型非欧几何学enumerative geometry枚举几何(学)equiaffine geometry等仿射几何equiform geometry相似几何(学)Euclidean geometry欧几里得几何favourable geometry【原物】有利几何条件finite geometry有限几何(学)finite dimensional projective geometry有限维射影几何(学)fluid geometry【地质】流体几何条件formal geometry形式几何four dimensional geometry四维几何(学)general affine differential geometry一般仿射微分几何(学)global differential geometry整体微分几何good geometry良好几何条件graphoanalytic geometry图解分析几何(学)higher geometry高等几何(学)hyperbolic (non-Euclidean) geometry双曲型(非欧)几何学hypersphere geometry超球面几何学image geometry图象几何(形状)infinitesimal geometry微分几何(学)infrared scan geometry红外扫描几何(学)integral geometry积分几何学intrinsic geometry内蕴几何学intrinsic differential geometry内在微分几何invariant geometry不变几何(学)inversion geometry反演几何(学)line geometry线素几何学Lobachevski geometry罗巴切夫斯基几何metric geometry度量几何学metric differential geometry初等微分几何(学)mirror geometry磁镜几何modern geometry近世几何(学)molecular geometry分子几何学natural geometry自然几何(学)network geometry网络几何non-Riemannian geometry非黎曼几何optimum geometry最佳几何尺寸orthogonal geometry正交几何parabolic geometry抛物几何(学)partial geometry部分几何perspective geometry透视几何picture geometry图象几何形状plane coformal geometry平面保形几何学point geometry点素几何学pole-zero geometry极零点几何分布poor geometry不良几何条件projective geometry投影几何quasi-elliptic geometry拟椭圆几何[学]random geometry不规则几何形状, 任意几何形状real geometry实素几何学reducible continuous geometry可约的连续几何relative(differential) geometry相对(微分)几何学Riemann"s non-Euclidean geometry黎曼非欧几何学ring geometry环几何safe geometry【原物】安全几何条件scattering geometry散射几何条件similar geometry相似几何solid geometry立体几何(学)space geometry空间几何学sphere geometry球几何学surface geometry表面几何图形synthetic(projective) geometry综合(射影)几何(学)tensor geometry张量几何tool geometry刀具几何形状topological differential geometry拓扑微分几何(学)track geometry磁迹几何形状two-dimensional geometry二维几何unitary geometry酉几何geometry of affine connection仿射联络几何学geometry of direction方向几何(学)geometry of iteration迭代法的几何geometry of lattices格的几何学geometry of linear displacement线性位移的几何geometry of mapping保角变换的几何关系geometry of nets网络几何(学)geometry of paths路线几何(学)geometry of position位置几何(学)geometry of random fields随机场几何geometry of the group manifold群流形几何学
2023-07-18 23:27:483

会计计量的期间基础是什么意思?

又称会计分期,是指将企业川流不息的经营活动划分为若干个相等的区间,在连续反映的基础上,分期进行会计核算和编制会计报表,定期反映企业某一期间的经营活动和成果.简单点的就是说一个周期,如年、月度、季度、半年度就像你上学一个学期哪些报表就要在会计期间末的时候弄出来,考察企业的运行状况就想高中时候的月考成绩,期末成绩,考察你的学习情况
2023-07-18 23:28:172

夜现周期性名词解释是什么?

如下:夜现周期性(nocturnal periodicity)指的是微丝蚴在外周血液中表现为夜多昼少的现象。微丝蚴白天滞留在肺毛细血管中,夜间出现在外周血液。微丝蚴的夜现周期性与中枢神经系统的兴奋、抑制有关。由于微丝蚴具有夜现周期性,抽取血标本最好是在夜间10时至凌晨2时之间患者熟睡时为宜。如果在白天检查,患者应口服海群生2-6mg/kg体重,于服後30-60分钟间采血检查。此法可用于夜间取血不方便者,但对低度感染者易漏诊。 夜现高峰时间:班氏丝虫为晚上10:00~次日02:00;马来丝虫为晚上8:00~次日04:00。丝虫病由哪些原因导致的?丝虫病的发病和病变主要由成虫及传染期幼虫引起。传染期幼虫经蚊叮咬侵入人体后,在淋巴系统内发育成为成虫。当雌雄虫体交配后,雌虫即产生微丝蚴,成丝状活动。微丝蚴自淋巴系统进入血液循环,一般白天藏匿于肺的微血管内,夜间进入周围血液循环,具有明显的夜周期性。通常马来微丝蚴为晚8时至次晨4时,斑氏微丝蚴为夜晚10时至次晨2时。
2023-07-18 23:28:281

综合指导:对管理会计原则的探讨

管理会计作为现代会计的分支之一,产生于本世纪20~30年代,形成于本世纪40~50年代,主要侧重于信息的积累、对比、分析和解释,用来帮助企业管理*预测前景、参与决策、规划未来、控制和评价各责任单位的经济活动。由于管理会计起步较晚,较财务会计已成熟的理论相比,管理会计理论还远未形成体系。而作为其理论基础之一的管理会计原则,中外学术界对其还很少进行探讨。而且由于其本身的服务对象、外部环境及内部条件的灵活性、多样性,很少形成广泛的业务原则。因而到目前为止,对管理会计原则还未形成统一定论。 管理会计原则是指导管理会计工作的规范,是对管理会计工作提出的要求,应具广泛的适用性及指导作用。1974年,美国会计学会(AAA)提出了八类管理会计信息的质量特征,虽然没有得到世界范围的普遍公认,但非常有借鉴意义。我国管理会计学者李天民教授又为管理会计原则构建了科学的理论结构。笔者现借鉴国内外学者的研究成果,对其具体内容作浅显论述。 管理会计的本质是一种全局性的,以决策性会计为主体的经济管理活动。其总目标是提供相应管理信息,协助管理*做出有关改进经营管理,提高经济效益和社会效益的决策。管理会计为管理*提供的管理信息,总是尽可能运用财务会计系统所提供的资料,并对其进行加工、改进和延伸,使他们能更有效地服务于企业内部管理。除此之外,适应现代管理的要求,管理会计也把提供的信息内容扩展到企业外部,如环境、政策、竞争对手等。但既然管理会计的主要信息来源是财务会计信息,二者在某种程度上是同源而分流的,我们不妨借鉴财务会计原则的体系,即把管理会计原则总分为基本假设和指导性原则。指导性原则又具体分为决策有用性原则、提供信息的约束原则及针对用户的质量原则。 一、基本假设 (一)会计主体(accountingentity) 它是管理会计对象运行的空间范围的规定。由于管理会计主要是向企业内部各级责任单位提供有选择的、部分的、特定的管理信息,因此,管理会计的主体,可以是整个企业,但更多的是各级责任单位。 (二)持续经营(goingconcern) 它是对管理会计对象运行的基本方式的规定。即企业或各级责任单位的生产经营和筹资投资等活动将无限期地延续下去,从而相应的管理会计方法能保持稳定、有效。 (三)会计分期(accountingperiodicity) 它是对管理会计运行的时间范围的规定,即把企业持续不断的生产经营活动和筹资投资活动,划分为一定的期间,以便及时提供有用的管理信息。相对财务会计而言,由于管理会计的工作重点主要是为企业内部管理人员服务,提供相应信息以协助其进行经营管理活动,而不是定期对外提供强制、规范的会计信息,故时间跨度可以灵活选择。特别是随着知识经济的到来,战略管理会计的推行,企业对会计信息的需求将朝着多层次、多元化方向发展。不同的管理主体有不同的时间需求,从年、季、月发展到周、日,甚至随时提供。 (四)货币的时间价值 由于管理会计职能的多样性导致其除应用货币作为计量单位外,还要广泛采用其他非货币计量单位,例如标准实物单位、质量综合计量单位、创新程度、市场占有率等等。而且在长期投资和筹资决策中绝不能假设币值不变,因为货币在不同时间的价值是不相等的。总的说来,货币计量和币值不变假设对管理会计均不适用。取而代之的是在投资、筹资中都必须考虑的重要前提———货币时间价值,以便使决策更为科学、合理。 (五)效益化目标 管理会计的总目标,就是为改善企业经营管理,提高经济效益和社会效益服务。为此,企业管理*在预测前景、参与决策、规划未来、控制和评价经营业绩的过程中,必须始终以经济效益和社会效益是否提高作为基本标准。 二、指导性原则 (一)决策有用性原则。这一原则分为首要质量特征和次要质量特征两个层次 1.首要质量特征 (1)相关性原则。要求在收集、加工处理、提供信息时,要充分考虑信息用户的需求以达到决策有用性。 一项管理会计信息如对信息用户决策没有帮助,则不具相关性。相关性原则有以下两层涵义: A.及时性:管理会计提供的信息应能够及时满足经营管理决策的需要。它包括及时将产生的信息资料进行处理和及时报送给信息用户。 B.适应性:是指从基本数据得到的信息对企业决策过程的满足程度及协调程度。 (2)可靠性原则。是指确保管理会计信息能免于错误及偏差,并能忠实反映它意欲反映的现象或状况的质量。信息如不可靠,不仅无助于决策,而且还可能造成错误的决策。因此可靠性也构成信息的主要质量。一项管理会计信息是否可靠。可就其四个组成因素加以衡量: A.客观性:强调管理会计信息能客观反映现存状况或对未来做出客观的预测。这一原则要求信息的来源,即用于生成信息的资料应客观、真实、准确,同时要客观选择处理方法。 B.可核性:是指由独立的不同个人分别采用相同的计量方法,对同一事项加以计量,能得出相同的结果。 C.中立性:指管理会计信息对不同的信息用户的影响都是没有偏见的(公平的)。在信息中如果掺杂着计量人员的个人兴趣,就不可能有中立的计量。因而中立性原则要求管理人员站在一个客观的位置上,在处理和提供信息时不能掺入个人的偏见和主观意愿。 2.次要质量特征 (1)一贯性原则。是指对信息的加工处理方法应保持一贯,便于不同期间信息可比。 (2)可比性原则。是指能使信息用户从两组经济信息中区别其异同的质量特征。当经济情况相同时,会计信息能显示相同的情况;反之,当经济情况不同时,会计信息亦能反映其差异。 一贯性与可比性原则相对于管理会计而言,在长期决策和短期决策中的重要性是不同的。一项长期决策要依靠各式各样的未经加工的信息和不重复出现的情况。如长期投资决策,可能由于内部强调的一贯、可比而使决策受到不适当的阻碍。因而在长期决策中,这两项原则并不重要。然而在短期规划和业绩评价方面,则要较多地依靠仔细加工的信息和重复出现的情况,从而更要求一贯、可比。 (二)提供信息的约束原则 1.成本效益原则。指提供管理会计信息带来的效益高于需要花费的成本。只有这样取得的信息才有价值。然而这一原则中的成本效益的衡量方式还有待商榷。它们可能扩散得极为广泛,从信息用户到整个企业乃至企业客户、投资者、消费者等等,从而难以准确衡量。 2.重要性原则。指管理会计信息对管理者做出决策或对责任单位进行业绩评价等将会构成重要影响。它可以从定性、定量两个不同角度进行分析确定。这一原则与成本效益原则是不可分的。为降低信息成本,必须遵循重要性原则进行信息处理。 3.民主性原则。进行各项决策分析和编制预算时,应遵循目标管理的原则,实行参与制的民主管理方式,即走群众路线。以企业员工为中心,相信职工的自我控制和自我管理的能力,充分发挥员工的潜力和主观能动性。 4.灵活性原则。这一原则包括诸多方面: (1)基本数据和信息分类的多样性以及方法的灵活性,以适用不同的信息用户及不同决策的需要。 (2)信息来源的多渠道性。管理会计信息既有来源于企业内部的财务会计资料及其他内部信息,也有来源于企业外部的诸如政策、环境、竞争对手的信息。 (3)提供内部信息时选用规则的灵活性。管理会计信息无强制性规则,企业可以根据需要灵活提供。 5.稳健性原则。指管理会计人员在处理及提供信息时应保持必要的谨慎,充分估计可能发生的损失;但对可能获得的收益则不要过于乐观估计,以免因过于乐观给企业造成损失。 (三)针对用户的质量原则 1.可理解性原则。是指信息用户对传送的信息能弄清楚的能力。可理解性是决策者和决策有用性原则的连接点。管理会计人员应尽可能使会计资料易于被人理解,而信息用户也应设法提高自身的理解使用能力,以使会计信息发挥的功能。 2.可接受性原则。是指信息用户对已出现问题的说明与计量标准的认可程度。由于管理会计的信息种类和计量方法具多样性、灵活性、复杂性的特点,只有与这种信息相关的属性被用户接受,才是有价值的。而如果用户难以接受,则会是信息成本的浪费,而效益为零。 3.激励性原则。是指信息用户与组织之间为保证“目标一致性”所做出的努力。具体说,就是对企业的全体信息用户乃至每个员工实施激励措施,营造有利于全员参与的管理环境,对我们所希望的行为要予以积极引导,不断激发员工的积极性、主动性、能动性,减少由于信息不对称和道德冒险给企业带来的不利因素,做到企业与管理者,管理者与员工之间目标一致,以实现企业经营目标。
2023-07-18 23:28:431

周期月是什么意思

月周期生物周期术语指与月的周期相对应的生物周期活动。也称太阴周期。月的公转周期为29.5日,在海岸可见到以14.8日为周期的大小潮。中文名:月周期外文名:lunar periodicity联系:月亮类别:生物术语
2023-07-18 23:29:021

integral的词典解释是什么

integral的词典解释是:基本的;构成整体所必需的Somethingthatisanintegralpartofsomethingisanessentialpartofthatthing。integral的词典解释是:基本的;构成整体所必需的Somethingthatisanintegralpartofsomethingisanessentialpartofthatthing。integral的意思是adj.完整的;构成整体所必需的;n.[数]积分;完整。integral副词:integrally;名词:integrality。一、详尽释义点此查看integral的详细内容adj.(形容词)完整的,完备的,完全的整体的积分的组成的集成的【数】整的,整数的不可或缺的,必需的,缺一不可的,不可分割的作为组成部份的,构成整体所必需的主要的n.(名词)【数】积分整体,全体,总体【数】整数积分项集成微分方程的解法完整二、英英释义Noun:theresultofamathematicalintegration;F(x)istheintegraloff(x)ifdF/dx=f(x)Adjective:existingasanessentialconstituentorcharacteristic;"thePtolemaicsystemwithitsbuilt-inconceptofperiodicity""aconstitutionalinabilitytotellthetruth"constitutingtheundiminishedentirety;lackingnothingessentialespeciallynotdamaged;"alocalmotionkeepethbodiesintegral""wasabletokeepthecollectionentireduringhislifetime""foughttokeeptheunionintact"ofordenotedbyaninteger三、词典解释1.基本的;构成整体所必需的Somethingthatisanintegralpartofsomethingisanessentialpartofthatthing.e.g.Ritualsandfestivalsformanintegralpartofeveryhumansociety...仪式与节日构成了任何人类社会不可缺少的一部分。e.g.Anxietyisintegraltothehumancondition.焦虑是人类的基本生存状况之一。四、例句Thetransitlineisanintegraltransportationlinkforthe2010WinterOlympics.该隧道是温哥华为2010年冬季奥运会打造的一条完整地下线路。Thekitchenisanintegralpartofahouse.厨房是房子不可缺的部分Thesepoliciesformanintegralwhole.这是很完整的。Thebodiesofthecartswereintegral,thatismadeofonemoulding.马车的车身是完整的,而且是根据同一个模型做出来的。五、常见句型用作形容词(adj.)用作定语~+n.That"sanintegralpartofthecountry.那是构成国家所必需的一部分。用作表语S+be+~+prep.-phraseSheisourbestplayer,andisintegraltoourteam.她是我们最好的球员,我们队离不开她。六、词汇搭配用作形容词(adj.)~+名词integraldesign完整的设计integralpartoftheargument构成完整论证的部分integralpowersource内置电源~+介词integralto构成必不可少七、词源解说☆15世纪晚期进入英语,直接源自拉丁语的integer,意为尚未触动过的。integral的相关近义词basic、complete、elemental、entireintegral的相关反义词partialintegral的相关临近词integrate、integer、Integrals、integrally、integrality、integralism、integralkey、integralfin、integralloop、integralrib、integralcam、integralsum点此查看更多关于integral的详细信息
2023-07-18 23:30:091

申请牛津 没有报名mat怎么办

留申请条件、费用少等等些信息候根据申请名称院校库看看详细介绍解
2023-07-18 23:30:172

初中数学名词的英文对照

http://www.shmaths.com/article/show.asp?id=75 http://www.zhb2005.com/info_Print.asp?ArticleID=650 http://www.tcsxsyzx.com/szblog/user1/31/5094.html全着呢,慢慢看吧!
2023-07-18 23:31:133

有关于英文accounting的作业,不要翻译要答案!!!

我靠……accounting我们这里都不讲定义的……直接做CPJ,CRJ呵呵
2023-07-18 23:31:453

求`论文!!!!!

你在哪?在北京的话,可以去国图的电子阅览室下。外地大城市也应该有类似的场所。先上中国期刊网查查你要的论文吧。www.sy.cnki.net
2023-07-18 23:32:083

请求英语达人将下面一段话翻译成英文,非常着急啊!谢谢了~~

China is the most serious natural disasters in the world, one of the few countries. But China has a long history of natural disaster not only harm, scope, and has high rate of outbreaks of seasonal, stage, sustainability, periodic and alternant sex and the outbreak of features. Therefore the country needs the system of natural disaster relief system, but also because of natural disaster relief commonweal characteristic of the public, and makes the national financial expenditure in natural disaster relief is foundational status. Therefore the fiscal expenditure on science is China"s economy mechanism and mode of harmonious development of society and the major issue.Therefore, the author first theoretically discussed natural disaster relief and the relationship between financial expenditure, and explained the mechanism of fiscal expenditure on natural disaster relief, why is the key reason, then from the perspective of fiscal expenditure in China in recent years, the natural disaster relief situation of fiscal expenditure of data analysis results, sums up our natural disasters in aid of fiscal expenditure of the problems exposed shortcomings, and compared with the United States, Japan and Turkey"s natural disaster relief, summarized the situation of fiscal expenditure in western countries in the aspect of successful experiences and inspiration, aims to put forward based on actual financial support of natural disaster relief, and relief system beneficial measures in the government responsibility on how to achieve fiscal expenditure.
2023-07-18 23:32:165

PDF输入的中英文内容,中文以YYY的形式出现,只要是中文字就出现“Y”,而且页面大小调整哪里可以调动?

enen
2023-07-18 23:32:453

integral的双解释义是什么

integral的双解释义是:adj.(形容词)构成整体所必需的;基本的necessaryforcompleteness。integral的双解释义是:adj.(形容词)构成整体所必需的;基本的necessaryforcompleteness。integral的意思是adj.完整的;构成整体所必需的;n.[数]积分;完整。integral副词:integrally;名词:integrality。一、详尽释义点此查看integral的详细内容adj.(形容词)完整的,完备的,完全的整体的积分的组成的集成的【数】整的,整数的不可或缺的,必需的,缺一不可的,不可分割的作为组成部份的,构成整体所必需的主要的n.(名词)【数】积分整体,全体,总体【数】整数积分项集成微分方程的解法完整二、英英释义Noun:theresultofamathematicalintegration;F(x)istheintegraloff(x)ifdF/dx=f(x)Adjective:existingasanessentialconstituentorcharacteristic;"thePtolemaicsystemwithitsbuilt-inconceptofperiodicity""aconstitutionalinabilitytotellthetruth"constitutingtheundiminishedentirety;lackingnothingessentialespeciallynotdamaged;"alocalmotionkeepethbodiesintegral""wasabletokeepthecollectionentireduringhislifetime""foughttokeeptheunionintact"ofordenotedbyaninteger三、词典解释1.基本的;构成整体所必需的Somethingthatisanintegralpartofsomethingisanessentialpartofthatthing.e.g.Ritualsandfestivalsformanintegralpartofeveryhumansociety...仪式与节日构成了任何人类社会不可缺少的一部分。e.g.Anxietyisintegraltothehumancondition.焦虑是人类的基本生存状况之一。四、例句Thetransitlineisanintegraltransportationlinkforthe2010WinterOlympics.该隧道是温哥华为2010年冬季奥运会打造的一条完整地下线路。Thekitchenisanintegralpartofahouse.厨房是房子不可缺的部分Thesepoliciesformanintegralwhole.这是很完整的。Thebodiesofthecartswereintegral,thatismadeofonemoulding.马车的车身是完整的,而且是根据同一个模型做出来的。五、词汇搭配用作形容词(adj.)~+名词integraldesign完整的设计integralpartoftheargument构成完整论证的部分integralpowersource内置电源~+介词integralto构成必不可少六、经典引文Recreationmustformanintegralpartofhumanlife.出自:E.M.GoulburnThiscylinderhasanopen-endedsteelbarrelwithintegralfins.出自:R.T.GlazebrookItsfrontairdamhasintegralfoglights.出自:MotorTrend七、词源解说☆15世纪晚期进入英语,直接源自拉丁语的integer,意为尚未触动过的。integral的相关近义词basic、complete、elemental、entireintegral的相关反义词partialintegral的相关临近词integrate、integer、Integrals、integrally、integrality、integralism、integralkey、integralfin、integralloop、integralrib、integralcam、integralsum点此查看更多关于integral的详细信息
2023-07-18 23:32:591

什么是周期性

所谓周期性就是指发生频率经过一个相当规律的时间间隔,呈现规律性变动的状况
2023-07-18 23:33:092

Accounting Entity Assumption是什么意思

会计实体假设
2023-07-18 23:33:183

什么是函数的周期性?

形去f(x)=f(x+T)的函数,就是函数图象成周期性变化!简单点说就是图象每隔(T)这样一段长度,就会重复!
2023-07-18 23:33:272

好心人帮帮忙啊!英文化学问题!

6.中子n7.F
2023-07-18 23:33:342

我要初高中所有数学名词的英文表

数学 mathematics, maths(bre), math(ame) 公理 axiom 定理 theorem 计算 calculation 运算 operation 证明 prove 假设 hypothesis, hypotheses(pl.) 命题 proposition 算术 arithmetic 加 plus(prep.), add(v.), addition(n.) 被加数 augend, summand 加数 addend 和 sum 减 minus(prep.), subtract(v.), subtraction(n.) 被减数 minuend 减数 subtrahend 差 remainder 乘 times(prep.), multiply(v.), multiplication(n.) 被乘数 multiplicand, faciend 乘数 multiplicator 积 product 除 divided by(prep.), divide(v.), division(n.) 被除数 dividend 除数 divisor 商 quotient 等于 equals, is equal to, is equivalent to 大于 is greater than 小于 is lesser than 大于等于 is equal or greater than 小于等于 is equal or lesser than 运算符 operator 数字 digit 数 number 自然数 natural number 整数 integer 小数 decimal 小数点 decimal point 分数 fraction 分子 numerator 分母 denominator 比 ratio 正 positive 负 negative 零 null, zero, nought, nil 十进制 decimal system 二进制 binary system 十六进制 hexadecimal system 权 weight, significance 进位 carry 截尾 truncation 四舍五入 round 下舍入 round down 上舍入 round up 有效数字 significant digit 无效数字 insignificant digit 代数 algebra 公式 formula, formulae(pl.) 单项式 monomial 多项式 polynomial, multinomial 系数 coefficient 未知数 unknown, x-factor, y-factor, z-factor 等式,方程式 equation 一次方程 simple equation 二次方程 quadratic equation 三次方程 cubic equation 四次方程 quartic equation 不等式 inequation 阶乘 factorial 对数 logarithm 指数,幂 exponent 乘方 power 二次方,平方 square 三次方,立方 cube 四次方 the power of four, the fourth power n次方 the power of n, the nth power 开方 evolution, extraction 二次方根,平方根 square root 三次方根,立方根 cube root 四次方根 the root of four, the fourth root n次方根 the root of n, the nth root 集合 aggregate 元素 element 空集 void 子集 subset 交集 intersection 并集 union 补集 complement 映射 mapping 函数 function 定义域 domain, field of definition 值域 range 常量 constant 变量 variable 单调性 monotonicity 奇偶性 parity 周期性 periodicity 图象 image 数列,级数 series 微积分 calculus 微分 differential 导数 derivative 极限 limit 无穷大 infinite(a.) infinity(n.) 无穷小 infinitesimal 积分 integral 定积分 definite integral 不定积分 indefinite integral 有理数 rational number 无理数 irrational number 实数 real number 虚数 imaginary number 复数 complex number 矩阵 matrix 行列式 determinant 几何 geometry 点 point 线 line 面 plane 体 solid 线段 segment 射线 radial 平行 parallel 相交 intersect 角 angle 角度 degree 弧度 radian 锐角 acute angle 直角 right angle 钝角 obtuse angle 平角 straight angle 周角 perigon 底 base 边 side 高 height 三角形 triangle 锐角三角形 acute triangle 直角三角形 right triangle 直角边 leg 斜边 hypotenuse 勾股定理 pythagorean theorem 钝角三角形 obtuse triangle 不等边三角形 scalene triangle 等腰三角形 isosceles triangle 等边三角形 equilateral triangle 四边形 quadrilateral 平行四边形 parallelogram 矩形 rectangle 长 length 宽 width 菱形 rhomb, rhombus, rhombi(pl.), diamond 正方形 square 梯形 trapezoid 直角梯形 right trapezoid 等腰梯形 isosceles trapezoid 五边形 pentagon 六边形 hexagon 七边形 heptagon 八边形 octagon 九边形 enneagon 十边形 decagon 十一边形 hendecagon 十二边形 dodecagon 多边形 polygon 正多边形 equilateral polygon 圆 circle 圆心 centre(bre), center(ame) 半径 radius 直径 diameter 圆周率 pi 弧 arc 半圆 semicircle 扇形 sector 环 ring 椭圆 ellipse 圆周 circumference 周长 perimeter 面积 area 轨迹 locus, loca(pl.) 相似 similar 全等 congruent 四面体 tetrahedron 五面体 pentahedron 六面体 hexahedron 平行六面体 parallelepiped 立方体 cube 七面体 heptahedron 八面体 octahedron 九面体 enneahedron 十面体 decahedron 十一面体 hendecahedron 十二面体 dodecahedron 二十面体 icosahedron 多面体 polyhedron 棱锥 pyramid 棱柱 prism 棱台 frustum of a prism 旋转 rotation 轴 axis 圆锥 cone 圆柱 cylinder 圆台 frustum of a cone 球 sphere 半球 hemisphere 底面 undersurface 表面积 surface area 体积 volume 空间 space 坐标系 coordinates 坐标轴 x-axis, y-axis, z-axis 横坐标 x-coordinate 纵坐标 y-coordinate 原点 origin 双曲线 hyperbola 抛物线 parabola 三角 trigonometry 正弦 sine 余弦 cosine 正切 tangent 余切 cotangent 正割 secant 余割 cosecant 反正弦 arc sine 反余弦 arc cosine 反正切 arc tangent 反余切 arc cotangent 反正割 arc secant 反余割 arc cosecant 相位 phase 周期 period 振幅 amplitude 内心 incentre(bre), incenter(ame) 外心 excentre(bre), excenter(ame) 旁心 escentre(bre), escenter(ame) 垂心 orthocentre(bre), orthocenter(ame) 重心 barycentre(bre), barycenter(ame) 内切圆 inscribed circle 外切圆 circumcircle 统计 statistics 平均数 average 加权平均数 weighted average 方差 variance 标准差 root-mean-square deviation, standard deviation 比例 propotion 百分比 percent 百分点 percentage 百分位数 percentile 排列 permutation 组合 combination 概率,或然率 probability 分布 distribution 正态分布 normal distribution 非正态分布 abnormal distribution 图表 graph 条形统计图 bar graph 柱形统计图 histogram 折线统计图 broken line graph
2023-07-18 23:33:571

有关数学用语的英文

positivenegativeprime numberconjugatereal numberrational numberirrational
2023-07-18 23:34:062

潮水的周期是多长时间?

潮汐周期 tidal Periodicity 对应于潮汐的生物周期活动。在海岸可以见到一般潮的涨落为12.4小时的周期。而最大潮和最小潮的潮期大约为半月(14.8日)。与此相对应的生物活动周期称为潮汐周期。特别是与后者相对应的周期多称为月周期或半月周期。
2023-07-18 23:34:151

数学中的专有名词翻译为英语

数学书最后一页都有的
2023-07-18 23:34:252

跪求冰川时期的一些英文资料~

The Big Chillby Kirk A. MaaschDuring the past billion years, the Earth"s climate has fluctuated between warm periods - sometimes even completely ice-free - and cold periods, when glaciers scoured the continents. The cold periods - or ice ages - are times when the entire Earth experiences notably colder climatic conditions. During an ice age, the polar regions are cold, there are large differences in temperature from the equator to the pole, and large, continental-size glaciers can cover enormous regions of the earth.Ever since the Pre-Cambrian (600 million years ago), ice ages have occurred at widely spaced intervals of geologic time - approximately 200 million years - lasting for millions, or even tens of millions of years. For the Cenozoic period, which began about 70 million years ago and continues today, evidence derived from marine sediments provide a detailed, and fairly continuous, record for climate change. This record indicates decreasing deep-water temperature, along with the build-up of continental ice sheets. Much of this deep-water cooling occurred in three major steps about 36, 15 and 3 million years ago - the most recent of which continues today. During the present ice age, glaciers have advanced and retreated over 20 times, often blanketing North America with ice. Our climate today is actually a warm interval between these many periods of glaciation. The most recent period of glaciation, which many people think of as the "Ice Age", was at its height approximately 20,000 years ago. Although the exact causes for ice ages, and the glacial cycles within them, have not been proven, they are most likely the result of a complicated dynamic interaction between such things as solar output, distance of the Earth from the sun, position and height of the continents, ocean circulation, and the composition of the atmosphere.Climatic Cooling from 60 million years ago to present dayBetween 52 and 57 million years ago, the Earth was relatively warm. Tropical conditions actually extended all the way into the mid-latitudes (around northern Spain or the central United States for example), polar regions experienced temperate climates, and the difference in temperature between the equator and pole was much smaller than it is today. Indeed it was so warm that trees grew in both the Arctic and Antarctic, and alligators lived in Ellesmere Island at 78 degrees North. But this warm period, called the Eocene, was followed by a long cooling trend. Between 52 and 36 million years ago, ice caps developed in East Antarctica, reaching down to sea level in some places. Close to Antarctica, the temperature of the water near the surface dropped to between 5 and 8 degrees Celsius. Between 36 and 20 million years ago the earth experienced the first of three major cooling steps. At this time a continental-scale temperate ice sheet emerged in East Antarctica. Meanwhile, in North America, the mean annual air temperature dropped by approximately 12 degrees Celsius. Between 20 and 16 million years ago, there was a brief respite from the big chill, but this was followed by a second major cooling period so intense that by 7 million years ago southeastern Greenland was completely covered with glaciers, and by 5-6 million years ago, the glaciers were creeping into Scandinavia and the northern Pacific region. The Earth was once more released from the grip of the big chill between 5 and 3 million years ago, when the sea was much warmer around North America and the Antarctic than it is today. Warm-weather plants grew in Northern Europe where today they cannot survive, and trees grew in Iceland, Greenland, and Canada as far north as 82 degrees North.We are still in the midst of the third major cooling period that began around 3 million years ago, and its effect can be seen around the world, perhaps even in the development of our own species. Around 2 and a half million years ago, tundra-like conditions took over north-central Europe. Soon thereafter, the once-humid environment of Central China was replaced by harsh continental steppe. And in sub-Saharan Africa, arid and open grasslands expanded, replacing more wooded, wetter environments. Many paleontologists believe that this environmental change is linked to the evolution of humankind. Possible Explanations for the Past 60 Million Years of CoolingClimate change on ultra-long time scales (tens of millions of years) are more than likely connected to plate tectonics. Plate motions lead to cycles of ocean basin growth and destruction, known as Wilson cycles, involving continental rifting, seafloor-spreading, subduction, and collision. Several explanations of the latest cooling trend that involve a climate-tectonic connection are summarized below.Geographic Distribution and Size of ContinentsThrough the course of a Wilson cycle continents collide and split apart, mountains are uplifted and eroded, and ocean basins open and close. The re-distribution and changing size and elevation of continental land masses may have caused climate change on long time scales. Computer climate models have shown that the climate is very sensitive to changing geography. It is unlikely, however, that these large variations in the Earth"s geography were the primary cause of the latest long-term cooling trend as they fail to decrease temperatures on a global scale.Likewise, changing topography cannot, by itself, explain this cooling trend. Computer model experiments performed to test the climate"s sensitivity to mountains and high plateaus show that plateau uplift in Tibet and western North America has a small effect on global temperature but cannot explain the magnitude of the cooling trend. Plateau uplift does, however, have a significant impact on climate, including the diversion of North Hemisphere westerly winds and intensification of monsoonal circulation.Geometry of Ocean BasinsAnother theory explaining these changes in climate involves the opening and closing of gateways for the flow of ocean currents. This theory suggests that the redistribution of heat on the planet by changing ocean circulation can isolate polar regions, cause the growth of ice sheets and sea ice, and increase temperature differences between the equator and the poles.Ocean modeling experiments suggest that the ocean could not have carried enough heat to the poles to maintain the early warm climates. But atmospheric climate modeling experiments show that even if the ocean did transport enough heat up to the coast of Antarctica to maintain sea surface temperatures at 10 to 15 degrees Celsius, the interior conditions would still be much colder - and this is contrary to the geologic record. It is possible, however, that changes in heat transport caused by variations in ocean gateways may have played a significant role in cooling trends over the last 60 million years, and, in particular, may help explain some of the relatively sudden cooling events. Atmospheric Carbon DioxideChanges in the concentration of carbon dioxide in the atmosphere are a strong candidate to explain the overall pattern of climatic change. Carbon dioxide influences the mean global temperature through the greenhouse effect. The globally averaged surface temperature for the Earth is approximately 15 degrees Celsius, and this is due largely to the greenhouse effect. Solar radiation entering earth"s atmosphere is predominantly short wave, while heat radiated from the Earth"s surface is long wave. Water vapor, carbon dioxide, methane, and other trace gases in the Earth"s atmosphere absorb this long wave radiation. Because the Earth does not allow this long wave radiation to leave, the solar energy is trapped and the net effect is to warm the Earth. If not for the presence of an atmosphere, the surface temperature on earth would be well below the freezing point of water.Through a million year period, the average amount of carbon dioxide in the atmosphere is affected by four fluxes: flux of carbon due to (1) metamorphic degassing, (2) weathering of organic carbon, (3) weathering of silicates, (4) burial of organic carbon. Degassing reactions associated with volcanic activity and the combining of organic carbon with oxygen release carbon dioxide into the atmosphere. Conversely, the burial of organic matter removes carbon dioxide from the atmosphere.Plate collisions disrupt these carbon fluxes in a variety of ways, some tending to elevate and some tending to lower the atmospheric carbon dioxide level. It has been suggested that the Eocene, the early warm trend 55 million years ago, was caused by elevated atmospheric carbon dioxide and that a subsequent decrease in atmospheric carbon dioxide led to the cooling trend over the past 52 million years. One mechanism proposed as a cause of this decrease in carbon dioxide is that mountain uplift lead to enhanced weathering of silicate rocks, and thus removal of carbon dioxide from the atmosphere.In addition, the collision of India and Asia led to the uplift of the Tibetan Plateau and the Himalayas. While topography may not be enough to explain the cooling trends, another mechanism may account for changing climate. The uplift may have caused both an increase in the global rate of chemical erosion, as well as erode fresh minerals that are rapidly transported to lower elevations, which are warmer and moister and allow chemical weathering to happen more efficiently. Through these mechanisms, then, it has been hypothesized that the tectonically driven uplift of the Tibetan Plateau and the Himalayas is the prime cause of the post-Eocene cooling trend.Kirk A. Maasch is a professor at the University of Maine, in the Department of Geological Sciences.
2023-07-18 23:34:331

曾志刚的部分发表论文

(1) Zhigang Zeng, Jun Wang, “Design and analysis of high-capacity associative memories based on a class of discrete-time recurrent neural networks,”IEEE Transactions on Systems, Man, and Cybernetics, Part B: Cybernetics, Vol. 38, No. 6, pp. 1525-1536, 2008.(2) Zhigang Zeng, Pei Yu and Xiaoxin Liao, “A new comparison method for stability theory of differential systems with time-varying delays,” International Journal of Bifurcations and Chaos, Vol.18, No. 1, pp. 169-186, 2008.(3)Zhigang Zeng, De-Shuang Huang and Zengfu Wang, “Pattern memory analysis base on stability theory of cellular neural networks,” Applied Mathematical Modelling, Vol.32, No.1, pp.112-121, 2008.(4)Zhigang Zeng, Jun Wang, “Analysis and design of associative memories based on recurrent neural networks with linear saturation activation functions and time-varying delays,” Neural Computation, Vol. 19, No. 8, pp. 2149-2182, 2007.(5)Zhigang Zeng, Jun Wang, “Global exponential stability of recurrent neural networks with time- varying delays in the presence of strong external stimuli,” Neural Networks, Vol. 19, No. 10, pp. 1528-1537, 2006.(6)Zhigang Zeng, Jun Wang, “Multiperiodicity of discrete-time delayed neural networks evoked by periodic external inputs,” IEEE Transactions on Neural Networks, (Regular Papers), Vol. 17, No.5, pp. 1141-1151,2006.(7)Zhigang Zeng, Jun Wang, “Improved conditions for global exponential stability of recurrent neural networks with time-varying delays,” IEEE Transactions on Neural Networks, (Regular Papers), Vol. 17, No.3, pp. 623-635,2006.(8)Zhigang Zeng, Jun Wang, “Complete stability of cellular neural networks with time-varying delays,” IEEE Transactions on Circuits and Systems-I: Regular Papers, Vol. 53, No. 4, pp. 944-955,2006.(9)Zhigang Zeng, Jun Wang, “Multiperiodicity and exponential attractivity evoked by periodic external inputs in delayed cellular neural networks,” Neural Computation, Vol. 18, No.4, pp.848-870, 2006.(10)Zhigang Zeng, De-Shuang Huang and Zengfu Wang, “Global stability of a general class of discrete-time recurrent neural networks,” Neural Processing Letters, Vol.22, No.1, pp.33-47, 2005.(11)Zhigang Zeng, Jun Wang and Xiaoxin Liao, “Global asymptotic stability and global exponential stability of neural networks with unbounded time-varying delays,” IEEE Transactions on Circuits and Systems II, Express Briefs, Vol.52, No.3, pp.168-173, 2005.(12)Zhigang Zeng, De-Shuang Huang and Zengfu Wang, “Memory pattern analysis of cellular neural network,” Physics Letters A, Vol.342, No.1-2, pp.114–128, 2005.(13)Zhigang Zeng, Jun Wang and Xiaoxin Liao, “Stability analysis of delayed cellular neural networks described using cloning templates,” IEEE Transactions on Circuits and Systems-I: Regular Papers. Vol.51, No.11, pp.2313-2324, 2004.(14)Zhigang Zeng, De-Shuang Huang and Zengfu Wang, “Attractability and location of equilibrium point of cellular neural networks with time-varying delays,” International Journal of Neural Systems, Vol. 14, No. 5, pp.337-345, 2004.(15)Zhigang Zeng, Jun Wang and Xiaoxin Liao, “Global exponential stability of neural networks with time-varying delays,” IEEE Transactions on Circuits and Systems-I: Fundamental Theory and Applications, Vol.50, No.10, pp.1353-1358, 2003.
2023-07-18 23:34:511

iPad怎么装praat

可以试试脚本安装praat脚本安装方法praat脚本安装方法1.打开PRAAT,录制一个声音文件,方法如下:点击,选择下拉菜单第一个RecordMonoSound,点击随便录音,然后点旁边的stop停止,再点右下部的savetolist进行保存,则出现。点击右边中间部位的Periodicity,选to pitch 点 ok,点右边的edit进行编辑。点左上角file选项卡,打开open editor script,选择传给您的FO文件(下载到那个路径需自行寻找)。选择左上角file,选择add to menu,在打开的窗口中command—栏后填写FO,点ok.重启PRAAT即可在音高编辑界面file使用该脚本。Praat语音学软件,原名Praat: doing phonetics by computer,通常简称Praat,是一款跨平台的多功能语音学专业软件,主要用于对数字化的语音信号进行分析、标注、处理及合成等实验,同时生成各种语图和文字报表。
2023-07-18 23:35:061

晶体中若有较多的线缺陷和面缺陷,其强度会明显提高,产生这一现象的原因是什么?

你好,线缺陷和面缺陷破坏了晶体的完整性,增加了位错运动的阻力,所以强度和硬度会增加。冷加工变形增加了位错密度,产生较多线缺陷,即产生加工硬化现象。细化晶粒增加了晶界,产生较多面缺陷,即产生细晶强化。
2023-07-18 23:35:161

温周期现象对园林植物的生态作用有哪些

在自然条件下气温是呈周期性变化的,许多生物适应温度的某种节律性变化,并通过遗传成为其生物学特性。这一现象称为(植物的)温周期现象(thertnoperiodism或thermoperiodicity of growth)。温周期对花卉植物的影响:昼夜的温度变化对花卉植物影响较大,在植物生长的适宜温度下,温差越大,对花卉植物的生长发育越有利。白天的温度高,有利于光合作用,夜晚的温度低减少了呼吸作用对养分的消耗,净积累较多,花卉枝叶茂盛,繁花似锦。
2023-07-18 23:35:241

Groundw ater in a C oral Island

IntroductionMany small coral islands exist in the Arabian Sea off the w estern coast of India. Inhabitants of these islands mostly depend upon groundw ater to meet their needs for drinking purposes. With increase in the population and developmental activities,the demand for freshw ater has also been grow ing. How ever,the fresh w ater aquifer in a small island is,generally,a fragile system occurring as a thin lens floating over saline w ater. Unregulated exploitation of groundw ater in such conditions w ould cause an irreversible deterioration of the chemical quality of groundw ater due to upconing of seaw ater. A comprehensive scheme of groundw ater exploitation consistent w ith natural constraints existing in such islands must be developed.Figure 4. 5. 1 Location map of Kavaratti island ( Lakshadw eep)Kavaratti is the island capital of a group of 36 coral islands called Lakshadweep( Figure 4. 5. 1) . The island is 1. 4 km w ide and 5. 5 km long. Additional groundw ater pumping from specially designed w ells fitted w ith radial pipes w as planned in order to establish a w ater supply scheme to meet drinking w ater requirements on the island. Before implementing this scheme,the impact of additional pumpage of groundw ater from these w ells must be quantified. For this purpose,a model w as prepared of vertical cross section along DD" ( Figure 4. 5. 1) . This model provided the safe rate of groundw ater pumping in order to limit the salinity at the w ater table to below 1000 mg / L or 2. 5% of seaw ater.Hydrogeological SettingJacob and Madhavan Pillai in 1983,Jacob and others in 1987,and Varma and others in 1989 described salient hydrogeological conditions on the island. Coral sands,corals,and coral limestone are the main w ater-bearing formations. A w ide lagoon exists on the w estern side of the island w here hard limestone forms a ridge. Exposures of hard coral limestones occur along the beaches. The topography of the island is undulating and the elevation above the mean sea level ( m. s. l. ) ranges from a few centimeters to about 6 m. The average annual rainfall is 1500 mm and occurs mostly during June to September. Minimal drainage systems and surface w ater storage exist on the island.Despite a high rate of percolation through very permeable coral sands,the net storage of fresh groundwater is meagre because a large percentage of the recharge flows out to sea as subsurface run-off. Several shallow open wells tap this scanty freshwater resource. The diameter of these wells varies from 1 m to about 6 m and the depth from less than 1 m to about 5 m near the coast. The depth to the water table ranges from 0. 5 m to about 4 m below land surface.Data from the electrical conductivity ( EC) of groundw ater indicate that the salinity of the fresh w ater zone has been progressively increasing over the last decade. Also,instead of a sharp fresh w ater-sea w ater interface,a transitional saline zone exists,created by mixing w ith the underlying saline w ater caused by the pumping of groundw ater as w ell as sea tides. The consequence has been a progressive thinning of the fresh groundw ater zone.Fluctuation of Water Table and Sea LevelThe height of the w ater table above the sea level has a significant bearing on the movement of saline w ater into the fresh w ater zone. The w ater table and sea level w ere continuously monitored for 3 w eeks during January 1995 ( Figure 4. 5. 2) . Sea level w as monitored w ithin a specially designed structure to avoid the interference due to sea w aves.The w ater table fluctuation in all the observation w ells w as correlated w ith sea tides and the magnitude of this fluctuation in the w ells is almost independent of the w ells" distance from the seashore. This implies that the influence of sea tides on the w ater table is primarily transmitted vertically except near the seashore w here the lateral flow may also be appreciable.The w ater table does not evince any long-term variation. This is corroborated by the hydrographs for several w ells in the island. Examples are w ells No. 2 and No. 5 along section DD" monitored over a period of 5 years ( Figure 4. 5. 3) . See also w ater table data for the years 1987 and 1995 for several observation w ells given in Table 4. 5. 1.Figure 4. 5. 2 Variation of w ater table ( at w ell No. 9) and sea levelFigure 4. 5. 3 Water table fluctuation ( w ith reference to mean sea level)Table 4. 5. 1 Height of water table ( in m) above mean sea level during 1987 and 1995* A negative sign implies lowering of the water table in 1995 compared to that in 1987.Hydrogeological ParametersHydrogeological parameters w ere estimated by pumping tests on four selected w ells in the coral sand aquifer ( Figure 4. 5. 1) . The duration of pumping tests w as kept short to ensure that during the pumping test the effect of tidal fluctuation on hydraulic heads remained insignificant. The w ater table w as monitored at regular intervals during both pumping and recovery phases. Typical time draw dow n and recovery curves for pumping tests at tw o locations are illustrated in Figure 4. 5. 4. The details of the pumping tests are given in Table 4. 5. 2.Figure 4. 5. 4 Time draw dow n and recovery curves for pumping testsTable 4. 5. 2 Particulars of pumping testPumping test data w ere interpreted using a numerical method w herein the follow ing field conditions w ere taken into account:1) During the initial phase of pumping,a substantial quantity of w ater is draw n from the w ell storage.2) Wells are partially penetrating and hence the upw ard flow of groundw ater through the w ell-bottom is also appreciable.3) The inflow into the w ell from the aquifer is caused by the decline of the w ater table as w ell as variation in fluid density w ith depth.Groundwater ModelingA 2-D vertical cross-section model w as constructed to simulate the hydraulic conditions and movement of the saline w ater into the fresh w ater zone. Physical FrameworkThe physical framew ork of the aquifer conforms to the geology as described for similar islands by Oberdorfer and others in 1990,Underw ood and others in 1992,and Griggs and Peterson in 1993. Hydrogeological information given by Jacob and others in 1987 w as also used. The top layer of coral sands reaches a depth of 8 m in the central region. This layer is underlain by carbonate rocks w hich may extend to the basaltic basement. The permeability of limestone formation near the shore w as assumed to be low.The follow ing numerical values of the various characteristic parameters of the model w ere adopted ( Table 4. 5. 3) :Table 4. 5. 3 Numerical values of the various characteristic parameters of the modelBoundary ConditionsAll points on the vertical lines representing the island-sea boundary w ere assigned a hydrostatic pressure exerted by the column of seaw ater above that point. The fluctuation of this pressure w ith tides w as approximated by a triangular w ave function having a periodicity of 24 h and an amplitude of 0. 9 m. The solute concentration at all the nodes along the island-sea boundary w as taken to be the same as seaw ater,i. e. ,0. 0357 kg salt per kg seaw ater. The bottom of the aquifer w as considered as a no-flow boundary w hich may be an impermeable basaltic formation.The w ater table constituted the upper boundary of the model,w hich receives natural recharge mainly during the rainy season from June to September. Different values of recharge w ere assigned to each element along the modeled section depending upon the vertical permeability for that element. Similarly,groundw ater extraction assigned to each element at the upper boundary w as varied based on the available data. Mathematical Formulation and Numerical SolutionMathematical equations describing density-dependent flow and solute transport in the aquifer may be expressed as:地下水科学专业英语and地下水科学专业英语w here v is average fluid velocity,φ is porosity of rock matrix,k is permeability of the rock matrix,μ is fluid viscosity, p is fluid pressure, ρ is fluid density, g is gravitational acceleration,Qpis fluid mass source,c is solute concentration of fluid, C*is solute concentration of fluid source,D is dispersion tensor,I is identity tensor,and Dmis apparent molecular diffusivity.Equation ( 4. 5. 1a) and Equation ( 4. 5. 1b) are based on the conservation of fluid mass, and the Equation ( 4. 5. 1c) also takes into account the solute mass balance. The computer softw are SUTRA w as used to solve these equations for a vertical 2 - D model. Suitable modifications w ere made to the computer code to incorporate the effect of tidal phenomenon, variable recharge in time,and w ater table conditions.The vertical section along DD" w as divided into 24 × 42 nodes ( Figure 4. 5. 5) . Since the salinity variation near the surface needed to be estimated accurately a close nodal spacing of 0. 2 m w as taken to a depth of 3 m. How ever,for the zone from 3 m to 10 m it w as kept as 0. 5 m,and a still coarser nodal grid w as used for zones deeper than 10 m.Figure 4. 5. 5 Nodal grid for groundw ater modeling Various input parameters used in the model w ere progressively,but slow ly,modified until a reasonable match betw een the computed and observed values of ① w ater table above the average sea level,② salinity of groundw ater at the w ater table,and ③ tidal efficiency w ere obtained. Table 4. 5. 4 gives computed and observed values of the w ater table and salinity. Figure 4. 5. 6 show s the final input parameters of the model ( KH,KVis horizontal and vertical coefficient of permeability,respectively) .Table 4. 5. 4 Average water table and salinity observed and computed ( field and model) valuesFigure 4. 5. 6 Final input parameters for groundw ater modelingFigure 4. 5. 7 Computed increase in salinity at the w ater table for different rates of pumping from w ater supply w ellResultsThe calibrated model was used to prognose the increase in the salinity of groundwater due to additional pumping at different rates from a new well at point A ( Figure 4. 5. 1) . Figure 4. 5. 7 depicts,from a number of prognostic runs,an increase in groundwater salinity with time for six pumping rates of 50000 L / d, 30000 L / d, 15000 L / d,13000 L / d,10000 L / d and 8000 L / d at this point. The total groundw ater pumpage in each case w as distributed over three periods each day. It can be seen that if the pumping from the w ell is less than 13000 L / d, the salinity of groundw ater stabilizes below 2. 5% that of seaw ater. This amount of groundw ater salinity is w ithin the permissible limits for drinking purposes. The salinity profile along the vertical section after 5 years of additional pumping of 13000 L / d is show n in Figure 4. 5. 8. The effect of additional groundw ater pumpage in the form of increased groundw ater salinity is felt in an area of 200-m radius. It is, therefore, imperative that in order to maintain an acceptable w ater quality, pumping from a single w ell in this situation should not exceed 13000 L / d and the distance betw een tw o w ells should be at least more than 400 m.Figure 4. 5. 8 Change in salinity along vertical section DD"due to additional groundwater pumpage at point ASome other measures to augment w ater supply on a small island may include rainw ater harvesting and reduction of the outflow to the sea. The techniques for rainw ater harvesting are w ell know n and are being used on the island. The outflow to the sea may be reduced if the transmissivity along the shore could be decreased. On an island w ith meagre resources,this can be conveniently achieved by drilling three row s of closely spaced 5 - cm - diameter shallow boreholes to a depth of 8 m to 10 m ( Figure 4. 5. 9a) . The boreholes may be grouted by a mixture of clay and cement. The existing 2 - D model w as used to prognose the rise in the w ater table as a result of this measure. It was seen that if the permeability of all the coastal elements ( to a depth of 8 m) is reduced from 250 m / d to 40 m / d, the w ater table w ill rise by 6 cm after 5 years ( Figure 4. 5. 9b) even after an additional pumping of 13000 L / d at the point A ( Figure 4. 5. 1) . A reduction of transmissivity all along the coast w ill,thus,help an appreciable buildup of the w ater table in the island.Figure 4. 5. 9 ( a) Three row s of boreholes to reduce transmissivity along coast. ( b) Rise in w ater table at point A in the island after construction of a subsurface damAcknowledgements The work was carried out with partial support from PWD,Kavaratti ( Lakshadweep) . The Director of NGRI has kindly permitted publication of the paper. Dr. Clifford I. Voss provided very useful inputs in modeling as did Mr. Gurunadha Rao V. V. S. and Mr. Yudhaveer K. ,scientists at NGRI. Officials of PWD,Kavaratti,provided support in the field investigations. Mr. Babu G. R. ,Mr. Chandrakumar C. and Mr. Gabriel J. assisted in the preparation of the manuscript. The authors are grateful to all of them.Words地下水科学专业英语
2023-07-18 23:35:321

求电子信息类的英文文献及翻译,英文字符一万字左右。

The MWC can operate with as few as p = 2N channels and with a sampling rate fs = 1/T > B on each channel,so that it approaches the minimal rate of 2NB. Advanced configurations enable additional hardware savings bycollapsing the number of branches p by a factor of q at the expense of increasing the sampling rate of each channelby the same factor [109]. The choice of periodic functions pi(t) is flexible: The highest Dirac frequency needsto exceed fmax. In principle, any periodic function with high-speed transitions within the period T can satisfythis requirement. One possible choice for pi(t) is a sign-alternating function, with M = 2L + 1 sign intervalswithin the period T [109, 161]. Imperfect sign alternations are allowed as long as periodicity is maintained [9].This property is crucial since precise sign alternations at high speeds are extremely difficult to maintain, whereassimple hardware wirings ensure that pi(t) = pi(t + Tp) for every t 2 R. The waveforms pi(t) need low mutualcorrelation in order to capture different mixtures of the spectrum. Popular binary patterns, e.g., the Gold or Kasamisequences, are especially suitable for the MWC [161]. Another important practical design aspect is that the lowpassfilter h(t) does not have to be ideal. A nonflat frequency response can be compensated for in the digital domain,using the algorithm developed in [162].
2023-07-18 23:35:391

三间分布的时间分布

无论传染病或慢性病,其流行过程均随时间的推移而不断变化。时间是研究疾病分布的重要指标之一。时间单位依病种而异。例如细菌性或化学性食物中毒,可用小时为时间单位;肺结核或肿瘤则常以5年或10年作为时间单位,以显示其长期变异。观察疾病动态时,应注意诊断标准和诊断技术改进的因素。时间分布分为下列四种类型:(一)短期波动(rapid fluctuation)有时也称时点流行或爆发。疾病在一集体或固定人群中,短时间内发病数突然增多,称为短期波动。常见因食物或水源被污染而发生的食物中毒、伤寒等。多因许多人在短期接触同一致病因子而引起。发病高峰与该病的常见潜伏期基本一致,故可从发病高峰推算出暴露时间,从而找出某病短期波动的原因。短期波动与爆发的区别在于爆发常用于少量人群,而短期波动常用于较大数量的人群。三间分布(二)季节性(seasonality)有些疾病尤其是传染病的发病率呈现每年在一定季节内升高的现象,称为季节性。疾病呈现季节性变化的原因很复杂,受各种气候条件、媒介昆虫、人群的风俗习惯、生产条件等因素影响。但许多现象尚未得到确切解释。传染病的季节性表现得较明显。例如在我国北方,流行性乙型脑炎有严格的季节性,仅发病于5-11月,高峰在7-9月(见图14-1)。肠道传染病一年四季均有发病,季节性高峰为夏秋季。呼吸道传染病季节性高峰一般多在冬春季。例如在我国北方,流行性脑脊髓膜炎发病高峰在1-4月。有些慢性传染病,如肺结核、丝虫病等,因潜伏期长,多无明显的季节性。有些非传染病也呈现季节性。如克山病在东北、西北地区多发生于冬季;而在西南一些地区多发生于夏季,其原因尚不完全清楚。通过季节性研究可探讨流行因素,并为制订防制对策提供依据。三间分布(三)周期性(periodicity)某些传染病相隔若干年发生一次流行,并且有规律性的现象,称为疾病的周期性。呈现周期性流行的疾病主要是呼吸道传染病。例如流行性感冒从历史上看,一般每隔10-15年流行一次。流行性脑脊髓膜炎约7-9年流行一次。周期性是可以改变和消灭的。例如,麻疹疫苗推广前,在大、中城市几乎隔一年发生一次流行。自1965年推广麻疹疫苗接种后,我国的麻疹发病率显著降低,周期性已不存在。(四)长期变动(secular change)长期变动是指在一个相当长的时间内,通常为几年或几十年,或更长的时间内,疾病的感染类型、病原体种类及宿主随着人类生活条件改变、医疗技术进步和自然条件的变化而发生显著变化。例如,猩红热在1750-1800年间,是严重的传染病,以后转为缓和,至1840年又变为凶恶之病,其死亡率是近年的数百倍。近百余年来,世界各地猩红热的发病率和死亡率均明显下降,临床上轻型和不典型病例所占的比重增多。二十世纪六十年代初以来,特别是实行计划免疫后,麻疹、白喉、脊髓灰质炎的流行情况发生了很大变化。非传染病如恶性肿瘤、心血管疾病等慢性病在死因中顺位上升。这类慢性病的波动只有长期观察才能明显看出。各种肿瘤的发病率或死亡率的长期变动趋势不同。例如,美国1930年以来男性肺癌死亡率有明显上升趋势,胃癌死亡率则逐年下降。
2023-07-18 23:35:461

英语完成时态的运用问题!(急)

哇,好多啊,你很有money
2023-07-18 23:29:1410

星际争霸LOST TEMPLE 这个地图在哪里选 急啊

咳咳……每个人是不一样的说……直接用windows的搜索功能找lost temple不久可以了?只能肯定是在maps文件夹下
2023-07-18 23:29:187

new pence主要是那个国家使用的货币?

英国的新便士 一般就是英国钢镚儿
2023-07-18 23:29:192

WARRIOR b.a.p中文歌词

http://tieba.baidu.com/p/1388668808
2023-07-18 23:29:243

oppobreeno指令怎么设置

ColorOS 7 推出了 “Breeno 指令”(APP),包含一键指令和自动指令,解决操作路径复杂,效率低下的问题,打造更高效的系统。一键指令:是一个快捷技能开放平台,您点击一键指令卡片后,可以直接执行APP内的某个服务,而非打开应用。1、导航回家:设定家庭住址和地图应用,点击导航回家,直接开始导航;2、附近:设定地图应用,点击指令后,快速查看附近超市、酒店等设施的位置;3、到家提醒:设定家庭住址,点击指令设定提醒内容(文字),到家时主动提醒;4、带壳截图:点击一键指令后打开相册页,在相册选择要进行处理的截图,预览并保存带壳截图。自动指令:设定好触发场景和要触发的操作,场景触发时,操作会自动执行。1、预设指令:(可更改设置)2、新建自动指令:添加触发条件、添加执行动作。Breeno指令的删除方法:在指令界面长按即可弹出删除选项注:部分机型Breeno指令更新后会出现“发现”界面,通过“发现”页面添加的指令也会放在一键指令和自动指令中。本回答适用于OPPO所有机型。
2023-07-18 23:29:261

LOSTTEMPLE中人族速开分矿在开始的建筑顺序

跟平时没多大区别,就是只造2个步兵其他全农民如果对方没有发现的话,家里可以不用造塔英雄出来前一小段时间拉4农民变民兵,打怪是4民兵打一个矿战士,大法师+水+2步兵杀另外一个矿战士打完后就造分基,箭塔
2023-07-18 23:29:094

take care of the pence什么意思及同义词

粗心比无知更为有害 Take care of the pence and the pounds will take care of themselves. 节约便士,金镑自然会累积起来(积少成多). To care for wisdom and truth and the improvement of the soul is far better than to seek money and honour and reputation 获得智慧,寻求真理,并使心灵美好,要比追求金钱、荣誉和名声好得多 Wang Yan has her hands full with working full time during the day and taking care of the family the rest of the time王燕白天上班,下班之后还得照顾家里,简直是忙得不可开交
2023-07-18 23:29:091

warrior是回力鞋吗

是“没有区别。warrior是Warrior的英文名。回力属于大众档次的运动鞋品牌。回力鞋业创立于1927年,至今已有80年历史。“勇士”商标于1935年注册,1997年被认定为上海市著名商标;1999年被认定为中国驰名商标。”“大侠”鞋类产品曾获国家化工部质量银奖和上海市优质产品奖??”
2023-07-18 23:29:031

Lost Temple(失落神庙)电子书txt全集下载

已发私信
2023-07-18 23:29:022