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均布荷载弯矩公式

2023-08-08 00:41:33
共9条回复
慧慧

M=qL^2/2。q:均布荷载集度,L:均布荷载作用的长度范围。1/2qx2=qx*1/2x,即从支点A到x截面这一段梁上的荷载qx乘以荷载中心到x截面的距离1/2x。

对于土木工程结构中的一根梁(指水平向的构件)当构件区段下侧受拉时,称此区段所受弯矩为正弯矩;当构件区段上侧受拉时,我们称此区段所受弯矩为负弯矩。

uniformly

弯矩的基础:

1、熟悉单跨梁在各种荷载独立作用下的弯矩图特征:比如悬臂梁在一个集中荷载作用下.其弯矩图的特征是一个直角三角形;悬臂梁在均布荷载作用于全长上时,其弯矩图为一个曲边三角形等。单跨梁在一种荷载作用下的弯矩图。

2、杆件某段两端点弯矩值的确定杆件某段两端点弯矩值一般有下面三种情况:

(1)无铰梁段:一般要先算出粱段两端截面处的弯矩值。

(2)梁段中间有一个铰:因已知无外力偶矩的铰处弯矩为零,只须另算一处截面的弯矩即可。

(3)梁段中间有两个铰:这两铰处的弯矩都为零,可直接按简支梁弯矩图特征画出弯矩图。

康康map

如果二端支座是铰支座,那么是M=ql*l/8

如果是其他支座,那应该在其支座固端弯矩的基础上往下叠加ql*l/8

如果你知道二端的支座情况,可再追问

北有云溪

均布荷载弯矩公式是M=qL^2/2,其中q是均布荷载集度,L是均布荷载作用的长度范围。

cloud123

均布荷载对于梁或结构体的弯曲会产生弯矩。当均布荷载作用于梁上时,可以使用以下公式计算弯矩:

M = (w * L^2) / 8

其中,M表示弯矩,w表示均布荷载的大小,L表示梁的长度。

这个公式是基于梁的简单支座条件下的假设,即梁两端固定,且均布荷载在整个梁上均匀分布。如果梁或结构不符合这些假设,那么需要使用更复杂的公式进行计算。

需要注意的是,上述公式只适用于直线梁,对于其他形状的梁,如悬臂梁或曲线梁,可能需要使用不同的公式来计算弯矩。此外,如果均布荷载的分布不是均匀的,也需要使用其他的公式进行计算。

LuckySXyd

均布荷载弯矩公式是用来计算梁在均布荷载作用下的弯矩分布的公式。假设梁的长度为L,均布荷载的大小为q,梁的弯矩分布可以用以下公式表示:

M(x) = qLx/2 - qx^2/2

其中,M(x)表示梁在距离梁起点x处的弯矩大小。根据该公式,可以计算出梁在不同位置处的弯矩大小。

tt白

M=qL^2/2 q:均布荷载集度

L:均布荷载作用的长度范围

我不懂运营

均布荷载作用在梁上时,可以使用以下公式计算其引起的弯矩:

[M = frac{wL^2}{8}]

其中:

  • (M) 是梁上产生的弯矩(Bending moment)。

  • (w) 是均布荷载的大小(Uniformly distributed load)。

  • (L) 是梁的长度。

  • 这个公式适用于简支梁和跨中集中荷载为零的连续梁。请注意,在实际应用时,还需要考虑梁的边界条件、支座反力和其他可能施加在梁上的荷载等因素。

wpBeta

M=ql*l/8

豆豆staR

我是小学生 不晓得

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2023-08-06 00:49:511

中午的英文是什么

  特帅的新年首练堪称魔鬼训练,从上午十点一直到中午(Noon)一点半,这一练就是三个半小时,队员们都练到累趴下了。下面我为大家带来中午的英语意思和相关用法,欢迎大家一起学习!   中午的英语意思   noon   中午的相关英语例句   1. He returned from a lunchtime drinking session with his business cronies.   中午跟那帮生意上的朋友喝完酒后,他回来了。   2. There is a ceaseless struggle from noon to night.   从中午到夜晚,争斗没有停歇。   3. Northerly winds will increase to force six by midday.   到中午时分北风会加强到6级。   4. He expected the transfer to go through by today"s noon deadline.   他希望转账在今天中午的最后期限之前完成。   5. At midday everyone would go down to Reg"s Cafe.   中午,大家都会下楼去雷吉餐馆。   6. Main courses are half price from 12.30pm to 2pm.   主菜在中午12点30分到下午两点之间是半价。   7. The conference chairman has set a deadline of noon tomorrow.   会议主席将明天中午定为截止日期。   8. Beyond the windows, a November midday was uniformly grey.   往窗外望去,11月的中午始终都是灰蒙蒙的。   9. Primrose was given an apple, left over from our picnic lunch.   我们中午野餐剩下的一个苹果给了普丽姆罗丝。   10. Shops usually shut from noon-3pm, and stay open late.   商店通常中午到下午3点关门,然后营业到很晚。   11. We went for a pizza together at lunch-time.   我们中午一起去吃了比萨饼。   12. I"ll call you guys tomorrow. Noon-ish.   我明天给你们打电话,中午前后吧。   13. The route had been reopened by noon.   到中午的时候这条路线就重新开放了。   14. By early afternoon the weather had brightened.   中午刚过,天就放晴了。   15. We should be there by noon.   我们应该最晚中午到达。   中午的英文例句   1. 那次行进速度很快,到中午已抵达伦敦。   It was good going to reach London by midday.   2. 我们要在中午前後走。   We"re leaving round about midday.   3. 我们中午能到牛津吗?   D"you think we"ll make Oxford by midday?   4. 我们中午乘船去加来。   We embarked for Calais at midday.   5. 学校在中午被解散了。   The school was disbanded at noon.   6. 来访者在中午前一会儿离开了。   The visitor left a little before noon.   7. 中午我们可以在附近的餐厅买便当吃。   We can take a lunch box at noon in the nearby restaurant.   8. 如果你真使劲的话,中午前你就能完成这项工作。   You can finish the job by noon if you put your back to it.   9. 中午找一些新的不同的饭盒试试。   Try out new lunch boxes at noon.   中午的双语例句   我们想在中午结账离开旅馆。   We"d like to book out at noon.   我可在中午之前到达镇上。   I will hit the town before noon.   你必须在中午以前将行李交运。   You must check your luggage in before noon.   中午的阳光融化了屋顶上的雪。   The sun at noon thawed the snow on the roof.   集会到中午才结束。   The meeting didn"t break up until noon.   这也意味着你应该在中午的时候停止工作,做点其它什么事儿。   That also means that you should stop work at noon and go do something else.   article.yeeyan.org   早上九点,她去做早饭,之后又回到地里直到中午。   At nine, she makes breakfast, returning to the fields until noon.   只有狗和英国人才在中午的太阳底下在外面乱跑。   But mad dogs and Englishmen go out in the midday sun.   如果你对咖啡因敏感的话,在中午和晚上就避免饮用。   If you are sensitive to caffeine, avoid it in the afternoon and evening.   如果你对咖啡因敏感的话,在中午和晚上就避免食用。   If you are sensitive to caffeine, avoid it in the afternoon and evening.   明天还有一个,但中午之前不会出现。   There"ll be another one tomorrow. But not before noon.   中午要不要一起吃饭?   Do you want have lunch together?
2023-08-06 00:49:581

雅思小作文的地图题写作到底要怎么写呀?没有一点思绪、头疼O(∩_∩)O

没见地图怎么知道咋写?乱写乱写…l
2023-08-06 00:50:075

在统计中UMP检验是什么意思? 也就是 Uniformly Most Powerful ...多谢大家

1.一致最大功效检 验2. 又称 :一致最大功效检 验(UMP test )
2023-08-06 00:50:381

polynomial function是什么意思

直接翻译过来就是多项式函数,比如 f(x) = ax^2 + bx +c
2023-08-06 00:50:493

低调 这两个字用英语怎么写??

低调: [ dī diào ] 1. low key 2. low keyed 3. low-profile 4. undertone 政府一直低调处理教师的工资问题. The government has been soft-pedalling (on) the question of teachers" pay. continuous full and low-pitched throbbing sound. 连续不断的低调的跳动的声音。 a little masterpiece of low-keyed eloquence. 低调但是有说服力的短小著作。 the sharps or flats that follow the clef and indicate the key. 谱号后表示基调的高调或低调。 a double-reed woodwind similar to an oboe by lower in pitch. 类似于低调双簧管的双簧木制乐器。 Low in tone or tonal range. 低调的声调不高的,或声调范围内低的 On the issue of industrial pollution, the environmental activist plead with the government not to soft-pedal. 自然环境保护活动分子请求政府不要对工业污染问题采取低调态度。 On the issue of industrial pollution, the environmental activist plead with the government not to soft pedal. 自然环境保护活动分子请求政府不要对工业污染问题采取低调态度。 Folksy humor; a folksy style that masked a keen business mind. 低调的幽默;以低调的形式掩盖着一种强烈的商业念头 Having or producing uniformly dark tones with little contrast, as in a photograph. 低调的具有或产生统一的几乎没有对比的深色调,比如在照片中 A low-pitched woodwind instrument with a double reed, having a long wooden body attached to a U-shaped lateral tube that leads to the mouthpiece. The range of this instrument is typically two octaves lower than that of the oboe. 巴松管,低音管一种低调的有双簧的木管乐器,有长的木质管身并与通向吹口的侧面管身相连,这种乐器的音域范围比双簧管明显的低两个八音度
2023-08-06 00:51:581

几道英文版物理题,求翻译(英语差到爆已无力T.T)

1.给定一个特定的质点的位置的时间函数,求质点的速度和加速度一时间函数。2。一条船可以静水中以2.20m/s的速度。(a)如果船朝船头方向直接横穿过一个流速为1.20m/s的河流,小船相对于岸的速度是多少(大小和方向)?(b)船在3.00s后相对于它的原点在什么样的位置,?3。一种长细杆携带总电荷q沿长度均匀分布。确定电场沿杆轴的一端开始,设E(x)x > = 0百度翻译,人工校正了一下,翻译得不好,请见谅。高手请进。
2023-08-06 00:52:081

科技英语的特点

  科技英语作为一种重要的英语文体,包含大量与科技相关的专业词汇,具有词义多、长句多、被动句多、词性转换多、非谓语动词多、专业性强等特点。接下来我为大家整理科技英语的特点,希望对你有帮助哦!   一、大量使用名词化结构   《当代英语语法》(A Grammar of Contemporary)在论述科技英语时提出,大量使用名词化结构(Nominalization)是科技英语的特点之一。因为科技文体要求行文简洁、表达客观、内容确切、信息量大、强调存在的事实。而非某一行为。   Archimeds first discovered the principle of displacement of water by solid bodies.   阿基米德最先发展固体排水的原理。   句中of displacement of water by solid bodies 系名词化结构,一方面简化了同位语从句,另一方强调displacement 这一事实。   The rotation of the earth on its own axis causes the change from day to night.   地球绕轴自转,引起昼夜的变化。   名词化结构the rotation of the earth on its own axis 使复合句简化成简单句,而且使表达的概念更加确切严密。   If you use firebricks round the walls of the boiler, the heat loss. Can be considerably reduced.   炉壁采用耐火砖可大大降低热耗。   科技英语所表述的是客观规律,因之要尽量避免使用第一、二人称;此外,要使主要的信息置于句首。   Television is the transmission and reception of images of moving objects by radio waves.   电视通过无线电波发射和接受活动物体的图象。   名词化结构the transmission and reception of images of moving objects by radio waves 强调客观事实,而"谓语动词则着重其发射和接受的能力。   二、广泛使用被动语句   根据英国利兹大学John Swales 的统计,科技英语中的谓语至少三分之一是被动态。这是因为科技文章侧重叙事推理,强调客观准确。第一、二人称使用过多,会造成主观臆断的印象。因此尽量使用第三人称叙述,采用被动语态,例如:Attention must be paid to the working temperature of the machine.应当注意机器的工作温度。而很少说:You must pay attention to the working temperature of the machine .你们必须注意机器的工作温度。此外,如前所述,科技文章将主要信息前置,放在主语部份。这也是广泛使用被动态的主要原因。试观察并比较下列两段短文的主语。   We can store electrical energy in two metal plates separated by an insulating medium. We call such a device a capacitor, or a condenser, and its ability to store electrical energy capacitance .It is measured in farads.   电能可储存在由一绝缘介质隔开的两块金属极板内。这样的装置称之为电容器,其储存电能的能力称为电容。电容的测量单位是法拉。   这一段短文中各句的主语分别为:   Electrical energy   Such a device   Its ability to store electrical energy   It (Capacitance )   它们都包含了较多的信息,并且处于句首的位置,非常醒目。四个主语完全不同,避免了单调重复,前后连贯,自然流畅。足见被动结构可收简洁客观之效。   三、非限定动词   如前所述,科技文章要求行文简练,结构紧凑,为此,往往使用分词短语代替定语从句或状语从句;使用分词独立结构代替状语从句或并列分句;使用不定式短语代替各种从句;介词十动名词短语代替定语从句或状语从句。这样可缩短句子,又比较醒目。试比较下列各组句子。   A direct current is a current flowing always in the same direction.   直流电是一种总是沿同一方向流动的电流。   Radiating from the earth, heat causes air currents to rise.   热量由地球辐射出来时,使得气流上升。   A body can more uniformly and in a straight line,there being no cause to change that motion.   如果没有改变物体运动的原因,那么物体将作匀速直线运动。   Vibrating objects produce sound waves ,each vibration producing one sound wave.   振动着的物体产生声波,每一次振动产生一个声波。   In communications, the problem of electronics is how to convey information from one place to another.   在通讯系统中,电子学要解决的问题是如何把信息从一个地方传递到另一个地方。   Materials to be used for structural purposes are chosen so as to behave elastically in the environmental conditions.   结构材料的选择应使其在外界条件中保持其弹性。   There are different ways of changing energy from one form into another.   将能量从一种形式转变成另一种形式有各种不同的方法。   In making the radio waves correspond to each sound in turn ,messages are carried from a broadcasting station to a receiving set.   使无线电波依次对每一个声音作出相应变化时,信息就由广播电台传递到接收机。
2023-08-06 00:52:151

Determine the displacement of a plane that is uniformly accelerated u3002u3002u3002uff1f

飞机的位移是由在12s内飞机的速度从66m/s到88m/s的加速度决定的。
2023-08-06 00:52:402

英译汉 翻译

这是我喜欢这部电影的原因:它鼓励人们去维护人的尊严,去体会生活的美,而且最重要的是保持希望永远。他曾经是天生的,那就是死。每个人都是一样的。唯一不同的是忙着活,或者忙着死。电影告诉我们,虽然人只能活一次,但是如果他保持信心,希望好好地活,一次也就足够了。信念是能感觉光在黎明前的黑暗中的鸟,希望这个世界能提供的主要的幸福,和生命应该充满鸟儿的歌声和希望带来的快乐。”那是什么呢?这是心灵的战栗,内心的歌唱,人的灵魂和对自由的渴望飞翔。”在整体来说,除了脚本的弱点和不可信(超过两个),性能均强,如果在点一点二维,时代感的艺术方向彻底而低调,托马斯纽曼的成绩很好的支持,是情感的东西不太强烈或甜蜜。对一个监狱戏剧,暴力不是打起来特别,但这不是自由的威利,要么。出于好奇,肖申克是一个好的夜晚,俗话说。如果概念不抓你从一开始,该文件将抓住你的眼睛。在大多数情况下,令人满意的选项是通常的选择,一个会让观众高兴。虽然这是一个愉快的直接经验,副作用是真正的惊喜的缺乏使得它不持久的比你希望的
2023-08-06 00:52:502

m个求随机放进n个桶,m至少多大时我们期望会有一个桶里面有两个球。

2个就可以了
2023-08-06 00:52:573

my class rules英语作文,10句

every place has it"s own rules.like no talking,no eat or drink.our class has it too.let me tell you about it.每个地方都有规则。比如不许讲话,不许吃零食,不需喝东西之类的。我们的班级也有班规。我来告诉你吧。1)no eating or drinking in the classroom.课堂上不许吃,喝2)no running in the class room.课堂上不许乱跑3)keep quiet in the class.课堂上保持安静4)pay attention to the teacher.上课专心听讲5)no fighting 不许打架that"s the rules of my class, what about yours ? 这就是我们的班规,你们的班规呢? 2.Every class has rules, like No smoking, No eating and No sleeping. Our class is not very good, because some students are talking when someone is speaking. In the class, we should observe others by rules. Now, I list some rules in class: 1. No talking when someone is speaking. 2. No sleeping in class. 3. No eating or drinking in class. 4. Be always on time. 5. No playing in class. 6. No laughing when someone makes a mistake. These rules are just my opinion, but I think if our class has such rules, we can study better.
2023-08-06 00:53:072

高三英语问题 The British psychoanalyst John Bowlby......

嗯顺便说一下几天前帮我指导的ABC夭下英语中心的老师和我们说过事实上想征服英语很简单的;坚持要有一个恰当的研习环境以及进修口语对象,老师水平是关键,纯正欧美口音非常重要,坚持天天口语沟通一对一家教式教学才可以有最.好.的学习成果;上完课同样要重复复习课堂录音档,把所学知识融会贯通..然后要是真的没有人可以指导的状况下,那么就到可可或大耳朵获得课余学习材料阅读,多问多听一下子语境就加强起来,学习效益是必定最佳的;Firstly,thetelephonewasinventedbyAlexanderBellin1.Besides,thecarwasinventedbyCarlBenzin1.Itisacommontransportationinourlife.Itisconvenientforustogosomewhere.Whatsmore,thetvwasinventedbyJohnBairdinaround1.Thetvmakesourlifemoreandmorecolorful.Itsagreatinventionsintheworld.
2023-08-06 00:53:211

在英国不好的数字是几

2
2023-08-06 00:53:295

ansys如何计算通电导线的生热率?

三维技术论坛http://www.3dportal.cn/discuz/?fromuid=877900
2023-08-06 00:54:273

be/fixed/in是什么意思?

  be fixed on:盯着某物或某事;被固定在......上。  分析:这是一个含有be动词的词组,可以是被动语态,也可以是系表结构的短语。  例如:  The bridge will be fixed on two arched girders.  大桥将将固定在两个拱状大梁上。  It can be fixed on the bushings of the ring net switch cabinets and capacitorsquickly and uniformly.  其体积小、重量轻、占用空间小,固定在环网柜,电容器柜等电器设备的套管上,简捷方便,和谐美观。  His eyes are fixed on the red embers of the fire.  他的眼睛盯着红色的余火。  Pedestrians are in great haste, but her eyes are fixed on the ground.   行人来去匆匆,但是她的眼睛中是紧盯着地面。
2023-08-06 00:54:523

int数据打出来是随机数值

java中生成随机数的方式之1:利用 java.util.Random 工具类可以生成随机数,以jdk1.8为例1、Random对象的创建我们先来看下Random的构造方法// 无参构造public Random(){}// 带参构造public Random(long seed){}我们来看一下它的相关源码:/*** Creates a new random number generator. This constructor sets* the seed of the random number generator to a value very likely* to be distinct from any other invocation of this constructor.*/public Random() {this(seedUniquifier() ^ System.nanoTime());}/*** Creates a new random number generator using a single {@code long} seed.* The seed is the initial value of the internal state of the pseudorandom* number generator which is maintained by method {@link #next}.**The invocation {@code new Random(seed)} is equivalent to:*{@code* Random rnd = new Random();* rnd.setSeed(seed);}** @param seed the initial seed* @see #setSeed(long)*/public Random(long seed) {if (getClass() == Random.class)this.seed = new AtomicLong(initialScramble(seed));else {// subclass might have overriden setSeedthis.seed = new AtomicLong();setSeed(seed);}}从源码中我们可以获取的信息有:对于无参构造方法,Random() 在创建对象时,会生成一个随机数作为种子,利用这个种子生成新的随机数。而这个随机数是当前系统时间的纳秒值和另外一个长整型毫秒值的异或运算的结果【this(seedUniquifier() ^ System.nanoTime())】对于有参构造方法,根据方法上的注释,我们发现方式1:Random rd1 = new Random(10);等价于以下语法方式2:Random rd2 = new Random();rd.nextInt(10);但是,实际测试中,并没有这么简单,请参照第3标题下的内容。2、Random对象的生成随机数的相关方法Random类中,生成随机整数的相关方法有:/*** ...* @return the next pseudorandom, uniformly distributed {@code int}* value from this random number generator"s sequence*/public int nextInt() {return next(32);}/*** ...* @param bound the upper bound (exclusive). Must be positive.* @return the next pseudorandom, uniformly distributed {@code int}* value between zero (inclusive) and {@code bound} (exclusive)* from this random number generator"s sequence* @throws IllegalArgumentException if bound is not positive* @since 1.2*/public int nextInt(int bound) {if (bound <= 0)throw new IllegalArgumentException(BadBound);int r = next(31);int m = bound - 1;if ((bound & m) == 0) // i.e., bound is a power of 2r = (int)((bound * (long)r) >> 31);else {for (int u = r;u - (r = u % bound) + m < 0;u = next(31));}return r;}nextInt() 和 nextInt(int) 这两个方法都可以用来生成随机数。但是它们两个方法的区别在于假设 Random ra = new Random();ra.nextInt() 会生成一个任意的 随机整数(包括正数和负数)ra.nextInt(int) 会生成一个 [0,9] 之间的任意一个整数测试代码如下:public class TestRandomConstructor {public static void main(String[] args) {System.out.println("========================= nextInt(10) ================");Random rd1 = new Random();for (int i = 0; i < 20; i++) {System.out.println(rd1.nextInt(10));}System.out.println("========================= nextInt() ================");for (int i = 0; i < 20; i++) {System.out.println(rd1.nextInt());}}}测试结果:========================= nextInt(10) ================7781827610...
2023-08-06 00:54:591

跪求蝴蝶梦的复述和评论!!!!英文的谢谢了~~~~~~~~~~

  复述(summary)如下:  A shy ladies" companion, staying in Monte Carlo with her stuffy employer, meets the wealthy Maxim de Winter. She and Max fall in love, marry and return to Manderlay, his large country estate in Cornwall. Max is still troubled by the death of his first wife, Rebecca, in a boating accident the year before. The second Mrs. de Winter clashes with the housekeeper, Mrs. Danvers, and discovers that Rebecca still has a strange hold on everyone at Manderlay.  还有一个:  Maxim de Winter, still troubled by the death of his first wife Rebecca, falls in love with a shy ladies" companion. They get married, but the second Mrs. de Winter discovers that Rebecca still has a strong hold on everyone in the house, particularly on Mrs. Denvers, the housekeeper, who begins driving the young wife to madness.  评论(comments)如下:1.a brief one比较简洁的^_^  A stylishly directed and photographed film that examines a number of themes, such a deception, death and depression, and explores well the emotions of its characters. It is rare to find a film like this, as it tackles various genres, ranging from being a romance to a mystery to a drama to even a comedy at times, and all without seeming pretentious. The cast is truly magnificent. Judith Anderson is a stunner is a quiet but sinister role, and George Sanders is even more impressive in lively but also sinister performance. Laurence Olivier and Joan Fontaine are perfect for their roles too. The film won Academy Awards for Best Picture and Best Cinematography quite deservingly – this is one of the best films Hollywood has ever produced.  2.一个比较详细的^_^  《 What Atmospheric Gothic-horror Should Be》  Alfred Hitchcock was and is still the undisputed Master of Suspense, and there is a lot of that here in his foray into Gothic horror, as the mystery surrounding the unseen yet omnipresent Rebecca will engage the viewer from its dreamy start to its bleak conclusion. This is exactly what atmospheric is supposed to be about, and in black and white, it shines. This is also what Gothic horror is in essence, and many have imitated yet come up short, most notably M. Night Shyamalan who, in trying to go for a shock twist and purported "atmosphere" only creates a bad aftertaste and a hangover the size of Mount Everest. This is, essentially, Hitchcock"s first true masterpiece.  Not one performance rings false, not to the novel or to their respective interpretations. Lawrence Olivier, quite possibly one of the greatest actors that ever lived, portrays a broken man who still lives haunted by the past as he himself were still living in that unending hell. Judith Anderson embodies one of the most coldly sadistic figures in cinema history, her smooth and elegant truculence only exceeded by Anthony Hopkins" rendition of Dr. Hannibal Lecter. One can"t seem to understand the way she wallows in her dead mistresses" clearly perverse nature, but that exactly she does, right down to her own end. George Sanders does what he does best: sneer, smirk, and spit line after line of practiced venom, and would be honored 10 years later in ALL ABOUT EVE. Gladys Cooper, still striking in her 50s, plays into her casual cattiness which means no harm, although her rendition of Beatrice Lacy is a little subdued from the novel"s version.  And then there is Joan Fontaine. Not one of the best actresses on film, yet here, playing a role that evolves beautifully from a frightened, weak girl who is put into a situation she does not understand and who turns right at the point of losing it into a much more mature, strong woman capable of holding her own, she carries the weight of the entire drama and comes forth with flying colors. While I would have preferred Anne Baxter who would have been the exact right age for this role, Fontaine exudes so much restraint and nervousness about her character (partially to blame Olivier"s treatment of her and Hitchcock"s telling her the entire cast hated her), it"s almost a relief when she finally decides to confront Olivier about what it the secret of Manderley. Not many roles require such a change and not many actresses would sink her teeth into a part that requires being put-upon until she can"t stand no more, and this is one beautiful performance.  A movie that should have won more Oscars that year, REBECCA has since grown in stature and proved that a film need not trophies to be Timeless and Great.  再补充几个^_^comments  《the first Hitchcock masterpiece》  "Rebecca" was the first Hitchcock film I ever saw, and I was mesmerized by it from the start, convinced that I had to see more of the director"s work. It richly deserved the Oscar it received, but it"s a real puzzle that the Academy saw fit to withhold a best director award for Hitch. Would one possibly give an award to a work by Picasso and not to Picasso himself?  "Rebecca" was the first of the director"s American-made films, and it shows. It"s quite different from his earlier British-made films, such as "Young and Innocent" and even "The Lady Vanishes," which somehow seem more amateurish by comparison. (I know little of the British cinema of that era, but it"s difficult not to conclude that Hollywood was better at producing more sophisticated efforts.) I would even judge "Rebecca" the best of his films of the early 1940s, with the possible exception of "Shadow of a Doubt." It is true, of course, that much of this film has become cliché (remember the spoofs on the old "Carol Burnette Show"!), but it still weathers the decades very well. The acting is uniformly excellent. Olivier is the hardened Maxim de Winter, untitled lord of Manderly, trying to forget the past and given to unexpected bouts of anger and coldheartedness. Fontaine is perfect as the unnamed mousy heroine, innocent yet deeply in love, still carrying with her the aura of an awkward schoolgirl. Even character actor Nigel Bruce, best known for his role in the Sherlock Holmes films, makes an appearance and plays, in effect, Nigel Bruce!  But it is Judith Anderson"s role as Mrs. Danvers that viewers are likely to remember best. Her presence is as dark and foreboding as that of the deceased Rebecca herself, and Fontaine is evidently cowed by her icy stare and unnervingly formal manner. The dynamics between the two actresses are wonderful. Who could fail to empathize with Fontaine"s unenviable position as, in effect, the new employer of such an intimidating personage? On the other hand, Olivier seems quite unfearful of Anderson, despite her representing so much of the past he is trying to block out. This part of the plot (even in the book) never made much sense to me and is unconvincing.  As far as I know, this film marked Hitch"s first collaboration with composer Franz Waxman, whose haunting score makes it all the more memorable. Waxman"s scores are perhaps less obviously cinematic than those of the incomparable Bernard Herrmann, who would score Hitch"s films from 1955 to 1966. Contrast the score for "Rebecca" to Herrmann"s music for "Citizen Kane" the following year, and you"ll immediately hear the difference. Waxman"s is more symphonic in the central European style reflective of his own birth and upbringing. Yet it is worth recalling that scoring films was still a new art at this time, and both Waxman and Herrmann were pioneers.  Finally, one has to mention the cinematography, which is magnificent. Technically "Rebecca" might have been filmed in colour, which was newly available in 1940. ("Gone with the Wind" was filmed entirely in colour the previous year, while "The Wizzard of Oz" and "The Women" had colour scenes.) But colour would have diminished its impact. The suspense and the ominous sense of impending doom could only have been communicated through the medium of black-and-white and the deft use of light and shade which it affords.  In one respect, of course, "Rebecca" is not a typical Hitchcock film. There is no fleeing innocent trying to clear his name of a crime he did not commit. Surprisingly, there isn"t even a murder, although its absence was apparently imposed by the Hayes Code and is certainly foreign to Daphne du Maurier"s original novel. Some have said that there is more Selznick than Hitchcock in this film, and perhaps there"s something to that. Still, if the collaborative effort between the two was not exactly amiable, it was nevertheless successful.  In short, this is the first in a string of Hitchcock masterpieces.  《Haunting atmospheric treasure SPOILER ALERT》It seems almost superfluous to add to the many laudatory comments this movie has received on this site, but I feel a need to lay some tribute at the altar of this wonderful piece of classic cinema.  If you haven"t seen the movie, there may be a couple of SPOILERS in this review, but hopefully also some new insights in compensation.  As many have noted, the cast is uniformly excellent: the annoying social snob Edith Van Hopper(Florence Bates), Gladys Cooper"s kind, sisterly Beatrice, the eerie Mrs. Danvers of Judith Anderson, Olivier"s distracted yet explosive Maxim, George Sanders" snide, oily Favell and especially the oft-times underrated second (but unnamed) Mrs. DeWinter of Joan Fontaine.  Although not entirely faithful to the Daphne Du Maurier novel, the screen adaptation preserves the haunting ambiance of Du Maurier"s work. Rebecca, though never seen, is clearly the central character, but we learn about her all through indirection in the dialogue of the other characters. We are allowed to create her piece by piece in our own minds, which just adds to the engrossing, I-can"t-stop-watching, thrust of the movie.  The character who actually tells us the most about the real Rebecca is Mrs. Danvers. The erotic attachment of this character to Rebecca is subtle, yet unmistakable. The wonderful scene in which Judith Anderson shows Rebecca"s bedroom to Joan Fontaine is breathtaking in its suggestiveness. The West Wing, "the only room that looks down across the lawn to the sea" has become Mrs. Danvers" private temple to Rebecca. Her loving preservation of Rebecca"s possessions, her sensual handling of Rebecca"s underclothes, of her diaphanous negligee, of her glamorous furs and then Anderson"s almost hypnotic miming of brushing Rebecca"s hair as Fontaine sits at Rebecca"s dressing table all make this scene an unforgettable sequence. Anderson"s acting is absolutely miraculous. She achieves her character with hardly ever a change in her affect, except where a very slight contrasting up tick in energy transforms her in the West Wing scene and in the scene where she coolly suggests that Fontaine leave-by means of a precipitous drop out of the window onto the rocks. It is a performance which I doubt could ever be duplicated.  As we later learn of Rebecca"s moral character, it also seems that Mrs. Danvers was as much in love with Rebecca"s corruption as she was with the woman herself. "Danny" in a way becomes the embodiment of Rebecca"s cold malevolence which still lingers in the mansion.  Joan Fontaine could hardly have been better. She, of all the characters, evolves through the movie. She moves in a seamless line from the pitiful, beleaguered companion of Mrs. Van Hopper to her drowned rat arrival at Manderley to the self-assured and supportive wife Maxim wanted and needed. What I found fascinating about this transformation is the imaginative skill of the costume designer. At the beginning, Fontaine"s shy little character is dressed like she made terrible selections at a Macy"s basement sale. Later as she tries to fill the role of the "great lady" she believed Rebecca to have been, her clothes always appear too big and totally out of character. Note the black evening dress with the absurdly large flowers across the front and especially the overwhelmingly outsized Garden Party gown she tries to wear to the costume ball. After she learns the truth about Rebecca from Maxim, discovering that he actually loves her as much as he hated Rebecca, Fontaine"s costumes become trim, conservative and tasteful, befitting the genuine, grown-up woman she has become.  Fittingly, the final scene belongs to Anderson-the frustrated woman robbed of her goddess--who brings the movie to a thundering operatic finish.  Although Selznick and Hitchcock repeatedly clashed over this move, it remains a deathless tribute to both men. This movie never loses its fascination and bears repeated watching, each time weaving its wonderful spell anew. It is a must-see, again and again, classic.  希望对你有所帮助^_^
2023-08-06 00:55:081

请帮忙翻译一下这篇文章,关于热力流体3的(语句要通顺)

液体将煮沸的压力称它的汽压。 这压力是温度的作用(汽压增加以温度)。 在这上下文我们通常考虑煮沸发生的温度。 例如,水煮沸在100oC以海平面大气压(1 atm吸收)。 然而,根据汽压,我们可以说通过增加温度水在海水平对100 oC,我们增加汽压对它与大气压的点(1 atm吸收)是相等的,因此煮沸发生。 形象化煮沸在水中可能也发生在温度在100oC之下的是容易的,如果压力在水中减少到它的汽压。 例如,水汽压在10oC是0。01 atm。 所以,如果压力在水之内在那个温度减少到那价值,水煮沸。 这样煮沸在流动的液体经常发生,例如在泵浦的吸边。 当这样煮沸在流动的液体时发生,蒸气泡影在高顺流压力的地区开始生长在非常低pressre的地方地区然后崩溃。 这种现象叫作为气蚀压缩性和体积弹性模量: 所有材料,固体,液体或气体,是否是可压缩的, i。e. 当力量在它的表面,一致地被施加被测量的大量的容量v将减少到V - dV。 如果表面每单位面积力量增加从p到p + dp,压力的容量之间的变动和变动的关系依靠材料的体积弹性模量。 体积弹性模量(k) = (在压力)/(上的变化容量张力) 容量张力是体积变化原始的容量划分的。 所以, (体积变化)/(原始的容量) = (在压力)/(上的变化体积弹性模量) i.e.- dV/V = dp/K 当压力增加,负号为dV表明容量减退。在极限,作为dp趋向到0,K = - V dp/dV à 1 考虑物质单位质量, V = 1/r à 2
2023-08-06 00:55:182

100分求英语翻译!

Indoor coverage is for indoor wireless communications user base for mobile communication environment to improve the building of a successful program. Through its system and principles of research to improve the quality of indoor coverage, improve the existing mobile communication environment. This paper studies the composition of indoor coverage system and indoor coverage of the design principles and elements of several key solutions such as: micro-cellular indoor coverage solutions, TD-SCDMA wireless frequency shift repeater, BBU (baseband control unit) + RRU (RF widening unit) "multi-channel" indoor coverage solutions, optimum depth of the wireless indoor coverage solution, and an example of its advantages. Through analysis and comparison, BBU + RRU "multi-channel" indoor coverage solutions for even more advantages. It makes use of indoor wireless distribution system will be uniformly distributed mobile base station signal in every corner of the room, thus ensuring the indoor area has a good coverage. The solution can significantly reduce construction costs and speed up construction of speeds, improve project quality, and enhance network maintainability. The program has the following characteristics: channel isolation to reduce interference; base-band sharing, the capacity can be flexible scheduling; RRU easy to install, easy on-demand building up heat up busy; fiber capacity, easy expansion; to facilitate construction; save room; flexible network, location, etc..
2023-08-06 00:55:251

NGS原理- 单细胞转录组测序-横评13种单细胞测序以及单细胞核测序方法

来源于 Benchmarking single-cell RNA-sequencing protocols for cell atlas projects 对比了13 commonly used scRNA-seq and single-nucleus RNA-seq的方法对比,也算是各有千秋。结果来看,不尽相同。在采用方法策略时候,还是要结合自己的课题,选择合适的方法,不能乱来。 Abstract 测试样品是一个包含人、鼠、狗细胞的混合细胞样品,用于测试13种单细胞测序方案。获得的reads分别mapping到人、鼠、犬的参考序列上,分别计算不同物种的不同测序方法的基因表达量。 The reference sample consists of human PBMCs (60%), and HEK293T (6%), mouse colon (30%), NIH3T3 (3%) and dog MDCK cells (1%). The sample was prepared in one single batch, cryopreserved and sequenced by 13 different sc/snRNA-seq methods. Sequences were uniformly mapped to a joint human, mouse and canine reference, and then separately to produce gene expression counts for each sequencing method. a, Color legend of sc/snRNA-seq protocols. b, 人细胞UMAP of 30,807 cells from the human reference sample (Chromium) colored by cell-type annotation. c, 鼠细胞UMAP of 19,749 cells from the mouse reference (Chromium) colored by cell-type annotation. d, Boxplots displaying the minimum, the first, second and third quantiles, and the maximum number of genes detected across the protocols, in down-sampled (20,000) HEK293T cells, monocytes and B cells. Cell identities were defined by combining the clustering of each dataset and cell projection on to the reference. e, Number of detected genes at stepwise. down-sampled, sequencing depths. Points represent the average number of detected genes as a fraction of all cells of the corresponding cell type at the corresponding sequencing depth. f, Dropout probabilities as a function of expression magnitude, for each protocol and cell type, calculated on down-sampled data (20,000) for 50 randomly selected cells. a,b, Principal component analysis on down-sampled data (20,000) using highly variable genes between protocols, separated into HEK293T cells, monocytes and B cells, and color coded by protocol (a) and number of detected genes per cell (b). c, Pearson"s correlation plots across protocols using expression of common genes. For a fair comparison, cells were down-sampled to the same number for each method (B cells, nu2009=u200932; monocytes, nu2009=u200957; HEK293T cells, nu2009=u200955). Protocols are ordered by agglomerative hierarchical clustering. d, Average log(expression) values of cell-type-specific reference markers for down-sampled (20,000) HEK293T cells, monocytes and B cells. e, Log(expression) values of reference markers on down-sampled data (20,000) for HEK293T cells, monocytes and B cells (maximum of 50 random cells per technique). f, Cumulative gene counts per protocol as the average of 100 randomly sampled HEK293T cells, monocytes and B cells, separately on down-sampled data (20,000). a, The tSNE visualizations of unsupervised clustering in human samples from 13 different methods. Each dataset was analyzed separately after down-sampling to 20,000u2009readsu2009per cell. Cells are colored by cell type inferred by matchSCore2 before down-sampling. Cells that did not achieve a probability score of 0.5 for any cell type were considered unclassified. b, Clustering accuracy and ASW for clusters in each protocol. a–d, UMAP visualization of cells after integrating technologies for 18,034 human (a,b) and 7,902 mouse (c,d) cells. Cells are colored by cell type (a,c) and sc/snRNA-seq protocol (b,d). e,f, Barplots showing normalized and method-corrected (integrated) expression scores of cell-type-specific signatures for human HEK293T cells, monocytes, B cells (e), and mouse secretory and TA cells (f). Bars represent cells and colors methods. g,h, Evaluation of method integratability in human (g) and mouse (h) cells. Protocols are compared according to their ability to group cell types into clusters (after integration) and mix with other technologies within the same clusters. Points are colored by sequencing method. Methods are scored by key analytical metrics, characterizing protocols according to their ability to recapitulate the original structure of complex tissues, and their suitability for cell atlas projects. The methods are ordered by their overall benchmarking score, which is computed by averaging the scores across metrics assessed from the human datasets. 参考文献: Elisabetta Mereu, Atefeh Lafzi Holger Heyn* Nature Biotechnology volume 38 , pages747–755(2020) Cite this article
2023-08-06 00:55:461

怎样当好一名护士 英文作文 150字左右,谢谢哦

As the saying goes "once a person fall in love with his career, he can from the struggle and successful career get the most happy and satisfied. " on the water "good if, that is, the best good, like water is same, it may, according to the shape of the container, and presents the corresponding shape. We on the patient"s care, also want to vary from person to person, not only the execution of the program, all kinds of mechanical smile of your heart, and not only is the career of the habit.Be a good nurse should have such state of mind!
2023-08-06 00:55:542

企业的一般业务流程是怎样的?

企业的一般流程这个面有点广.是想说成立一个企业的流程还是想知道一个企业的某个部门运转的一个流程..比如人事招聘类流程:首先是用人部门的用工申请---人力资源部门在对申请进行判断,在确定需要的时候首先公司内部进行调查,如果需要外部的话就要制定岗位招聘的详细情况,然后对外发布,也可以到现场进行招聘.----应聘人员填写申请诚聘表---面试----筛选---审核---同意通知报到等.
2023-08-06 00:51:152

希腊神话中有那些英雄死后升入神列?

只有赫拉克勒斯。
2023-08-06 00:51:155

铅笔的英文怎么读

英语:pencil-box 中文谐音:喷搜保科斯
2023-08-06 00:51:183

上海浦东发展银行股份有限公司电话是多少?

上海浦东发展银行股份有限公司联系方式:公司电话95528,公司邮箱bdo@spdb.com.cn,该公司在爱企查共有7条联系方式,其中有电话号码3条。公司介绍:上海浦东发展银行股份有限公司是1992-10-19在上海市市辖区成立的责任有限公司,注册地址位于上海市中山东一路12号。上海浦东发展银行股份有限公司法定代表人郑杨,注册资本2,935,208.0397万(元),目前处于开业状态。通过爱企查查看上海浦东发展银行股份有限公司更多经营信息和资讯。
2023-08-06 00:51:181

三星Galaxy Note的Spen没反应

根据您的描述,建议您:1,重新启动设备看看。2,如有条件,更换手写笔尝试3,问题不能解决,建议您备份资料后把设备恢复出厂设置。4,问题依旧,您可以携带包修卡,购机发票和设备到就近的三星手机客服检测手机。 具体当地服务中心请点击以下链接查看:http://support-cn.samsung.com/support/ServiceLocations.asp
2023-08-06 00:51:123

上海浦东银行和浦发银行是一个银行吗?

是。上海浦东银行的全称是上海浦东发展银行股份有限公司,简称浦发银行,二者是一个银行。上海浦东发展银行股份有限公司,是1992年8月28日经中国人民银行批准筹建的全国性股份制商业银行。
2023-08-06 00:51:111

企业对企业的业务流程如何

第一步,通过对现状问题调研总结,建立流程优化框架,包括支撑流程运作的业务组织职责分工、流程优化的目标、流程运作的整体框架、流程中相关术语和分类定义的统一等,明确优化的整体方向。第一步优化讨论必须在主管该流程领域的高层和相关业务部门负责人间形成共识;第二步,进入具体流程的优化,基于可运作的现实以及可改进的方向,考虑和现有业务的承接和延续性,因此第二步的优化必须在流程相关运作部门间形成共识;第三步,流程表单模板的优化,大量的实际操作是通过表单模板来落实的,因此需通过表单模板优化建立流程易于落实的工具。在具体项目推进上,可以此三步分别设置关键里程碑,以有效的控制流程优化项目的风险。一个企业开展全面的流程管理一般经历流程体系建设、流程实施推广、流程持续评估改进三个阶段,其中第一阶段的流程体系建设是策划和设计阶段,是流程能否落地的基础,在为很多企业开展流程体系建设项目时往往会面临以下问题和尴尬。 1、如何形成流程的整体架构,在整个企业范围内建立清晰的流程脉络,而不是各部门独立编写很多零散的相互交叉各自为政的流程。2、流程和以往的一些文件体系如何融合,很多流程项目最终结果是在iso体系、企业现有的规章制度之外又多了一套新的文件,但是具体业务执行的人还是不知道具体工作该参考哪个文件。 3、流程优化项目结束了,文件柜里产生了一堆流程文件,但在业务部门眼里是流程管理部门的流程,和自己没关系,业务还是按原来的惯性开展… 如何使流程体系建设能够真正落地,为企业带来切实的价值,结合经验,对项目开展过程中建立流程框架、流程梳理、流程优化三个核心环节的关键成功要素进行分析总结。1、建立流程框架构建流程框架本身是一个理清企业管理结构的过程。通过从企业一级流程框架逐渐往下分类分级细化,形成二级、三级直到完整的企业流程清单。其关键是既能体现流程体系的完整性和逻辑关联性,又清晰的界定流程间的边界。 企业的一级流程框架反映企业的整体业务模式,体现的是从企业最高管理层视角对企业的整体认识。企业的最高管理层的主要职责是制订并传达企业的战略,同时使企业里的各条流程能紧密衔接,通过建立企业各项活动的有机组合,形成整体系统,从而确保战略的实现和整体效益提升。 流程的分类分级首先是从管理要求的角度出发对业务的分类,不同分类的业务其管理要求不同,使相应的流程需设置不同的控制点和对应不同的知识经验积累点。在流程清单设计时需考虑不同产品的分类而设置不同的流程,即首先是区分管理的差异化,再实现标准化,切忌统一的流程应对所有类型业务。其次流程的分类分级细化需考虑不同细化颗粒度对应的应用对象,使分解的不同层级流程能对应到某一组织或岗位层级。 流程清单的表现形式一般类似树状逐级分解,然而现实业务流程整体描绘出来应该是网状结构,即各类不同的业务都有交叉影响作用,从而形成企业的整体系统。因此在流程清单分解时要识别各流程间的相关联系,这些联系包括直接触发关联,即一个流程结束启动下一个流程,或者流程间存在信息交互和时钟协同等。2、流程梳理流程框架搭建好后,进入具体流程梳理环节,这部分工作有两个关键要素,第一个是建立流程文件描述标准模板;第二个是让流程责任人成为责任中心,保证后续流程梳理优化工作按时按质完成。 流程文件描述标准模板的建立,首先要考虑企业已有的文件管理习惯,如兼容已有的iso文件体系格式,和以往的规章制度的统一,还包括考虑用户的流程图描述软件使用习惯等;其次,要区分不同的业务流程特性,使流程描述格式简单。如项目型运作的业务以wbs格式梳理,强调运作节拍的流程要加上时间轴等,使复杂流程描述更直观易懂。 流程梳理工作启动之初,就必须让流程责任人成为责任中心,而不能流程管理部门或者咨询公司越俎代庖。首先,流程是管理和业务的载体,流程梳理优化本身是一个思考、体会和模拟运作的过程,是分析、优化、搭建管理体系的过程,流程体现什么样的管理思想和要求,需要流程责任人进行构建;流程是否体现了其管理思想和要求,需要向什么方向优化,也需要流程责任人进行评估判断;其次,流程责任人是流程运作绩效的负责人:通过建立基于流程的可衡量的绩效指标并设置改进目标,推动业务持续优化,如何设定指标、如何反映工作目标,需要流程责任人进行思考;设定的指标是否实现,也是对流程责任人进行考核。3、流程优化流程优化过程的重点是目标问题导向和共识的形成。一方面,要明确目前现状存在的问题和流程优化的目标,切忌漫无目的的优化;另一方面,流程各方参与者对问题和优化方案共识的形成是后续流程推行落地的基础。因此,必须通过有效的项目过程组织,主导和推进流程优化,具体包括设置分步控制点,有效的组织沟通会议推动共识的达成等,以避免流程优化讨论的多轮反复和陷入泥潭。 首先,将流程优化过程分为三步走,每一步都在上一步共识形成的基础上再进一步细化:第一步,通过对现状问题调研总结,建立流程优化框架,包括支撑流程运作的业务组织职责分工、流程优化的目标、流程运作的整体框架、流程中相关术语和分类定义的统一等,明确优化的整体方向。第一步优化讨论必须在主管该流程领域的高层和相关业务部门负责人间形成共识;第二步,进入具体流程的优化,基于可运作的现实以及可改进的方向,考虑和现有业务的承接和延续性,因此第二步的优化必须在流程相关运作部门间形成共识;第三步,流程表单模板的优化,大量的实际操作是通过表单模板来落实的,因此需通过表单模板优化建立流程易于落实的工具。在具体项目推进上,可以此三步分别设置关键里程碑,以有效的控制流程优化项目的风险。 在流程优化的整个过程,需组织大量的研讨沟通会议,要让每次会议都有共识的形成和有效输出,必须进行有效的会议策划和管理。首先,明确需讨论共识的问题,如哪些部门/岗位间职责不清晰,哪些流程环节不顺畅等等,并尽可能准备多个备选方案和优劣分析;其次,确定每次参会的人员,针对要形成共识的问题,需让流程相关方都参与会议,以避免多方的意见不一致,同时在多方争持不下的时候能有决策者以确定最终方案; 流程梳理优化项目目标不是形成厚厚的流程文件,而是在整个流程梳理优化的过程中,让企业各方人员逐渐形成面向流程思考、按照流程运作的习惯。作为整个项目推动的流程管理部门和咨询公司在整个项目中一定要切实发挥项目管理者、推动者和引导者的角色,有效的组织和管理,为后续的流程实施推广落地奠定基础。
2023-08-06 00:51:043

天干地支读音顺序?

天干地支读音如下:(1)十天干:甲(jiǎ)、乙(yǐ)、丙(bǐng)、丁(dīng )、戊(wù)、己(jǐ)、庚(gēng)、辛(xīn)、壬(rén)、癸(guǐ)。(2)十二地支:子(zì)、丑(chǒu)、寅(yín)、卯(mǎo)、辰(chén )、巳(sì)、午(wǔ)、未(wèi)、申(shēn)、酉(yǒu)、戌(xū)、亥(hài )。天干地支顺序:天干是十个,地支是十二个,干为主干,支为分支,两个相对的命名应当是一起出现的。在商朝开始出现天干与地支配和用以纪日,使用干支纪年要更晚一些。天干的次序为:甲、乙、丙、丁、戊、己、庚、辛、壬、癸。地支的次序为:子、丑、寅、卯、辰、巳、午、未、申、酉、戌、亥。
2023-08-06 00:51:041