Then thedistribution of the students during the period is analyzed and thealgorithm is proposed according to the size of the total students sample.Finally based on the research above, a modified dynamic probabilitydistribution algorithm is proposed to meet the the real-time and equitydemand of the course-selection system. Compared with the knownalgorithms, this algorithm can put in practice real-time course-selection.At the same time the anticipator can select the course with the sameprobability.

本文首先對已有的選課算法進(jìn)行了比較研究www.av福利.com，隨后對選課人數(shù)隨時(shí)間的分布進(jìn)行了分析国产毛片网址有吧，并進(jìn)行相關(guān)算法研究，按照選課樣本的大小提出了相應(yīng)的算法欧美性爱啪啪啪视频；最后綜合上述算法欧美亚州一区，提出了一種改進(jìn)的基于概率動(dòng)態(tài)分布的選課算法思想，使得整個(gè)選課過程中亚洲色欧美色先锋影音，實(shí)時(shí)性與概率動(dòng)態(tài)分布有了很好的結(jié)合與體現(xiàn)免费欧美午夜性爱视频，既實(shí)現(xiàn)了實(shí)時(shí)選課，又能后使得參選人盡可能的擁有相等的機(jī)會(huì)(即實(shí)現(xiàn)選課過程中的相對公平合理性)選中某個(gè)課堂久久久国产九九99精品。

After the biomechanical finite element analysis for the three-dimensional reconstruction model, we find the structure of the deformed nose showes the following characteristics: 1, Nasal septum, nasal columella, lateral feet of nasal alar, lateral nasal dorsum are stress concentrated regions, that is the key mechanical positions of deformed nose; 2, Under the static state, nasal deformation has a very small value of stress distribution, under displacement load status, the deformed nasal has a large value of the stress distribution; 3, Ipsilateral nasal columella are the the key mechanical parts of deformed nasal rectify. And lateral nasal alar is also the most stress concentrated areas.

對于重建后的單側(cè)唇裂鼻畸形鼻部模型進(jìn)行有限元生物力學(xué)研究a片操屄视频，發(fā)現(xiàn)畸形鼻的力學(xué)結(jié)構(gòu)呈現(xiàn)以下特點(diǎn)：1、鼻中隔亚洲天堂在线观看免费、鼻小柱亚洲欧美综合在线天堂、鼻翼外側(cè)腳、鼻背外側(cè)是單側(cè)唇裂鼻畸形應(yīng)力分布的集中部位卡通动漫综合图区第1页，也就是畸形鼻部的力學(xué)關(guān)鍵部位大黄色视频试看60秒毛片；2国内精品视频福利第一区导航、在靜態(tài)狀態(tài)下，畸形鼻部擁有的應(yīng)力分布值很小日韩精品自拍欧美在线观看网站，在位移載荷狀態(tài)下国产在线精品一区在线观看，形變后的畸形鼻部擁有的較大的應(yīng)力分布值；3www.久久思思热.com、單側(cè)唇裂鼻畸形整復(fù)中国产一级在线观看免费视频，鼻小柱患側(cè)部是畸形整復(fù)的力學(xué)關(guān)鍵部位，其次就是患側(cè)鼻翼部黄片大全免费看的mm视频。

On the basis of this system andpreviously morphological, physiological and biochemical studies on cucumber in vitrogynogenesis. Materials from both typical gynogenesis using M99 as induction medium andnon gynogenesis using W5 as induction medium were collected. The activities anddistribution of peroxidase and its isoenzymes, content of soluble protein and distribution of allprotein during early stage of cucumber in vitro gynogenesis and non gynogenesis wereinvestigated by biochemistry and histochemistry technology.

本試驗(yàn)在前期有關(guān)離體黃瓜雌核發(fā)育形態(tài)學(xué)和生理生化研究的基礎(chǔ)上95视频网址，以誘導(dǎo)離體雌核發(fā)育的 M99 培養(yǎng)基上和非雌核發(fā)育的 W5 培養(yǎng)基上培養(yǎng)的黃瓜未受精子房為試材，采用生物化學(xué)技術(shù)和組織化學(xué)技術(shù)无码毛片一区,二区,…，深入研究了離體雌核發(fā)育早期外植體內(nèi)的標(biāo)志酶——過氧化物酶及其同工酶的活性及分布的變化免费看的黄色网站入口、可溶性蛋白質(zhì)的含量和總蛋白質(zhì)分布的變化及核酸和多糖分布的變化，為揭示離體雌核發(fā)育早期的細(xì)胞分化機(jī)制提供科學(xué)依據(jù)精品人妻无码专区在线中文字幕。

The tensile strength and the elastic modulus were assumed to obey Weibull and logarithmic normal distribution and the other mechanical parameters were taken as constant values in the simulations of three-graded-concrete supported beam. The random aggregate random parameters model was established, which is very close to the actual structure. The results show that the nonlinear behavior of higher homogeneous specimen appears later obviously; the influence of random distribution of elastic modulus on the mechanical character is very little in linear range, while great in nonlinear range; random distribution of tensile strength affects the strength and the damage threshold of concrete obviously.

對三級配混凝土簡支梁進(jìn)行數(shù)值模擬時(shí)免费三级视频黄色，假定各相材料的抗拉強(qiáng)度和彈性模量服從Weibull、對數(shù)正態(tài)兩種隨機(jī)分布另类A片，其他力學(xué)參數(shù)取定值www.人人操人人操麻豆，生成和實(shí)際結(jié)構(gòu)比較接近的隨機(jī)骨料隨機(jī)參數(shù)模型，數(shù)值模擬結(jié)果表明材料均質(zhì)度較高的試件出現(xiàn)非線性行為的時(shí)間要明顯滯后于均質(zhì)度較低的試件性欧美videos；彈性模量分布的隨機(jī)性對材料線彈性段力學(xué)性能的影響極小人人操人人干av，而對非線性區(qū)域的影響較大；材料強(qiáng)度分布的隨機(jī)性對混凝土的強(qiáng)度和損傷閾值有較大的影響黄色A片18免费。

Based on a quantitative analysis of radiolarian in 80 surface-sediment samples from the northern area of Okinawa Trough, this paper reported the species composition and faunal assemblages characteristic of radiolarian, expounded the distribution pattern of radiolarian abundance and diversity in surface sediments from this area. In this paper, a preliminary study on the relation of the distribution and abundance of radiolarian to environmental factors, such as chemical and physical properties of the overlying masses (sea-surface temperature, salinity, nutrients and primary productivity) and the type and composition of sea-bed sediments was made. The radiolarian data was evaluated using a Q-mode factor analysis to identify different faunal assemblages and their geographic distributions, then the relationship between radiolarian assemblages and distribution of water masses, hydrographic boundaries such as frontal systems was analyzed. A new radiolarian-based transfer function to estimate mean-annual sea surface temperature and seasonal range were examined to test its success in the study area.

本文對沖繩海槽北部80個(gè)表層沉積樣品中的放射蟲進(jìn)行了系統(tǒng)鑒定和定量統(tǒng)計(jì)免费高清无码视频，研究了放射蟲的種類組成與類群特征以及其豐度和分異度的分布；分析了海水溫度人人色人人干、鹽度黄色视频无码在线、營養(yǎng)鹽以及沉積物類型、成分等環(huán)境因素對放射蟲分布的影響欧美的天堂wwwwww；采用Q-型因子分析深夜免费A级毛片无码，求得放射蟲的屬種和組合分布特征，探討了放射蟲組合與不同水團(tuán)国产乱伦熟女视频、海洋水文結(jié)構(gòu)之間的關(guān)系自拍偷拍一区12；并對Pisias（1997）建立的估計(jì)表層海水年平均溫度和其變化范圍的放射蟲轉(zhuǎn)換函數(shù)在研究區(qū)的適用性做了檢驗(yàn)。

Acquired conclusion was that the sample mean value submitted to normal distribution, and the sample variance was composed of a number of linear sum of random variable submitted to Chi-Squared distr.

得出的結(jié)論是：樣本均值服從正態(tài)分布黄色视频观看免费域名，樣本方差由若干個(gè)服從卡方分布的隨機(jī)變量的線性之和組成欧美另类呦交视频免费观看；樣本均值的期望等于各管落點(diǎn)期望的算術(shù)平均值，方差為各管方差的算術(shù)平均值黄色网址视频在线观看；樣本方差是各管落點(diǎn)總體平均方差的無偏估計(jì)在线视频伦，方差與各管落點(diǎn)散布的差異相關(guān)国产精品免费视频色拍拍拍；樣本均值與方差相互獨(dú)立的充要條件是：各管落點(diǎn)屬于獨(dú)立同分布樣本。

The dislocable distribution of pedestrians in initial status as well as movement process enhances the interactions among pedestrians.The walking speed is adjustable because the pedestrian can move one or more small grids in each time step.The exit is figured more accurately because of the finer lattice,which reduces the probability of pedestrians passing the exit abreast. When one pedestrian walks in the middle of an exit and no pedestrian could share the exit with him,then the evacuation efficiency is decreased.

網(wǎng)格細(xì)化使得行人在初始狀態(tài)以及運(yùn)動(dòng)過程中呈現(xiàn)錯(cuò)位分布的特性欧美性爱2018，行人的錯(cuò)位分布加劇了行人間的相互排斥久草视频首页；網(wǎng)格細(xì)化使得在每個(gè)時(shí)間步內(nèi)行人可以運(yùn)動(dòng)不同的格子數(shù)，從而實(shí)現(xiàn)了速度的可調(diào)性久久久久综合综合情况久久久；網(wǎng)格細(xì)化使得出口得以精確的網(wǎng)格劃分嗯啊边走边做…野战，在錯(cuò)位分布的作用下，形成了多格子模型中特有的行人出口獨(dú)占效應(yīng)99re热自拍偷拍，大大降低了出口的利用率欧美日韩国产人成视频。

The probability distribution model is often used in simulation system to get the needed random number. Firstly how to simulate approximately the common method of probability distribution with Monte-Carlo is presented, and a high quality number randomizer is designed. The frequent stochastic distribution models on simulation system are mainly examined, which have some worth in utility.

計(jì)算機(jī)仿真系統(tǒng)中經(jīng)常要應(yīng)用研究對象的隨機(jī)分布模型獲得符合要求的隨機(jī)數(shù)，給出了利用蒙特卡羅法來近似地描述研究對象的概率分布的一般方法.com国产黄色视频在线看，設(shè)計(jì)了高質(zhì)量的隨機(jī)數(shù)發(fā)生器黄色看片网址，研究了利用MC法得到計(jì)算機(jī)仿真系統(tǒng)中常見的隨機(jī)分布模型算法，具有一定的實(shí)用價(jià)值免费黄色网站视。

The measurement model for the retardation distributing of the quarter wave plate was introduced by Muller matrix and Stokes parameter. And four patterns with phase shifting of 90°in turn were eatched simultaneously by an especial spatial splitting phase-shifter.

1／4波片相位延遲分布的動(dòng)態(tài)測量暧暧视频免费，通過密勒矩陣和斯托克斯參量法對一種1／4波片的相位延遲分布的測量模型進(jìn)行了推導(dǎo)，并設(shè)計(jì)出一種空間分光移相器國產無碼色視頻在線，取代一般測量系統(tǒng)中的檢偏器国产在视频线在精品视频，使得系統(tǒng)能于瞬間同時(shí)采集四幅具有90°移相步長的干涉圖，避免了環(huán)境振動(dòng)對測量的影響AAAAAAAAA欧美A片，從而可以對1／4波片的相位延遲分布進(jìn)行動(dòng)態(tài)在線測量午夜欧美影院网站在线观看。

The theoretical research on probability theory and random process and the practical applications show that the class normal distribution is most widely distributed in actual natural phenomenon and social phenomenon, cloud model is a powerful tool in simulating class normal distribution, controlling particle generation and particles attribute alternation of the particles system based on the cloud mode will simulate the natural rain more realistically, and has more fidelity effect.

概率論與隨機(jī)過程的理論研究和實(shí)際應(yīng)用表明，類正態(tài)分布在實(shí)際的自然現(xiàn)象與社會(huì)現(xiàn)象中分布最為廣泛亚欧精品在线免费观看黄片无码高清，云模型是模擬生成類正態(tài)分布的有力工具，基于云模型控制粒子系統(tǒng)的粒子生成肥婆a片视频、屬性的改變能夠更真實(shí)地模擬自然雨的生成色综合天天干视频，具有更逼真的效果。