But he found eight-year-olds as tall as 13-year-olds, and boys of ten who weighed twice as much as others the same age. This distribution was viewed by the 19th-century Belgian mathematician Adolphe Quetelet as God's "curve of error", as if the tall and the short were deviations from a correctly proportioned "homme moyen", or average man.

但他的調(diào)查也顯示：一些8歲兒童同13歲的一樣高欧美操逼打开直接看的黄片，一些10歲兒童比同齡重一倍14女一级毛片A视频。19世紀(jì)的比利時(shí)數(shù)學(xué)家Adolephe Quelet將此情況視為上帝的"錯(cuò)誤曲線"——過高和過矮好比是對正常身高的偏離国产3p视频。

Through conducting research on the classification of high density drilling fluid, the optimal grain distribution of adulterant is determined using the density-grain-viscosity curve.

對高密度鉆井液進(jìn)行了分類日韩欧美日逼视频，以密度－粒度－黏度曲線確定了最優(yōu)化加重劑粒度分布一级女性黄色生活片，通過優(yōu)化基漿配制工藝欧美人牲交全过程、優(yōu)選強(qiáng)抑制鉆井液體系碰碰碰摸摸摸免费视频、優(yōu)化加重劑與鉆井液的粒度分布研究性色网国产，應(yīng)用超微細(xì)、亞微態(tài)粒子穩(wěn)定技術(shù)aV黄色一级A片，強(qiáng)化固相控制国产AV妓女影院妓女影视，形成一套優(yōu)化的高密度陽離子鉆井液技術(shù)工藝。

Based on the laminate theory, a laminate weakened by damage is treated as an anisotropic thin plate. Using the complex potential method in the plane theory of elasticity of an anisotropic body, the series solution of finite anisotropic thin plate containing an elliptical inclusion is proposed with the help of Faber series. A hybrid element with an elliptical inclusion for anisotropic materials is obtained by using the hybrid variable principle, and the element efficiency is verified by numerical examples. The state of the damage is modeled by an elliptical soft inclusion, and using the point stress criterion based on characteristic curve and Yamada-Sun etc. criteria, the prediction of the strength of a composite laminate with damage is set up. The effects of various parameters on the stress distribution and the residual strength of a composite laminate weakened by damage are detailedly studied.

首先基于經(jīng)典層板理論黄网页站立于免费，將復(fù)合材料層板的彈性問題化歸為均勻各向異性板來求解在线欧美视频免费观看国产；采用各向異性體平面彈性理論中的復(fù)勢方法，以Faber級數(shù)為工具中文字幕字幕网在线，給出了有限大含橢圓核各向異性板彈性問題的級數(shù)解形式加勒比中文官网字幕；利用雜交變分原理直接在线观看的毛片网站，成功導(dǎo)出含橢圓核各向異性板雜交應(yīng)力有限元，并用算例驗(yàn)證了該單元的可行性和有效性妓女播放器；采用含剛度折減橢圓形彈性核的沖擊損傷模型91一级毛片，引入基于特征曲線和Yamada-Sun破壞準(zhǔn)則的點(diǎn)應(yīng)力判據(jù)，建立了含損傷復(fù)合材料層板剩余強(qiáng)度的分析方法人人妻人人干白浆；通過數(shù)值計(jì)算詳細(xì)討論了各種幾何參數(shù)對損傷層板應(yīng)力分布淫秽网站在线看、剩余強(qiáng)度的影響，得到了一系列對工程應(yīng)用具有實(shí)用價(jià)值的結(jié)論一区二区毛片网站。

Normal distribution is the most important distribution in the probability theory, the discovery of normal probability curve has revealed the evolution of De Moivre's probability thought.

正態(tài)分布是概率論中最重要的分布，其發(fā)現(xiàn)揭示了棣莫弗概率思想的發(fā)展過程及其對概率論發(fā)展所做的奠基性工作国产精品自拍三区。

Based on the data and materials collected from many years investigation over the sample plots in Daemonorops margaritae plantation in Daqingshan, Guangxi Province, this paper established a model for its stem length distribution by choosing three growth equations and using a method of twice curve fitting to describe the rule of length distribution for mother stem and sucker stem.

對廣西大青山黃藤人工林固定樣地進(jìn)行調(diào)查和收集資料，選擇Logistic日韩黄网站高清观看、Weibull和Richards 3種理論生長方程1024在线看片你懂得金沙人妻，采用兩次曲線擬合法分別描述母莖長和萌莖長結(jié)構(gòu)規(guī)律，旨在建立黃藤人工林莖長分布模型黄色巨乳。

The result shows that visitor distribution of World Expo shows kind of internal unbalance featured by staged continuous increase, a saw curve, uncertainness, and a difference between working days and weekends, etc.. the result also indicates that the quality and attractiveness of a World Expo is the determinant of both the amount and distribution of visitors, and that there is an overlap effect of external factors forming peak or valley day of visitors.

研究表明：世博會(huì)參觀者分布有其內(nèi)在不均衡性黄巴一，如階段性持續(xù)遞增、鋸齒性曲線95视频网址入口在线观看、不確定性日韩欧美在线观看综合网另类、工作日和節(jié)假日分布差異等九九影院精品；世博會(huì)辦展質(zhì)量和吸引力是影響參觀者人數(shù)和分布的最主要因素；影響參觀者人數(shù)的外生變量18禁黄无遮挡网站免费-百度，具有疊加和共振效應(yīng)亚洲最大黄色网站在线，因而形成參觀者高峰日或低谷日。

In conventional indirected parameter estimate, such as Weighted Least Square Method, the changing activity of the injected radiotracer is conventionally measured through multiple consecutive PET image reconstructions. The image of the radioactivity distribution in each frame is reconstructed independently and the whole set of frames is then used to estimate the distribution of the physiological parameter of interest by the application of an appropriate pharmacokinetic model to the time radioactivity curve either of appropriately selected functional regions or of each image element.

傳統(tǒng)的間接參數(shù)估計(jì)方法如加權(quán)最小二乘參數(shù)估計(jì)方法(Weighted Least SquareMethod国产精品夜色一区二区三区，WLS)美女AA毛片，需要首先從測量數(shù)據(jù)重建出PET動(dòng)態(tài)放射性活度圖像，然后在這些時(shí)間上連續(xù)的重建圖像應(yīng)用適當(dāng)?shù)膭?dòng)力學(xué)模型上估計(jì)感興趣的生理參數(shù)，然而PET重建圖像中往往含有極大的噪聲国产精品一区二区三区久久，這些噪聲將影響參數(shù)估計(jì)的準(zhǔn)確性。

At first,the curve of charge distribution,ionizable state of nonisothermatity sphere,Was obtained by computer to calculate ionized state according to distribution data of temperature and dinsity within Earth. Secondly,the pussibility of microgravitational testonosphere,Within the isothermality sphere,was found by balance between pressure and volumetric forcein Earth's interior.The thickness is 1 000 km or so.Finally,the result come into commom use various geophysical process withi...

首先依據(jù)地球內(nèi)部溫度和密度不均勻分布數(shù)據(jù)欧美另类A片，用計(jì)算機(jī)計(jì)算它的電離狀態(tài)A级国产乱人无码伦AV在线A，得到非等溫分層電離狀態(tài)的電荷分布曲線；其次從地球內(nèi)部存在的流體壓力與兩類體積力：重力和靜電力的平衡方程討論中国产成人羞羞爽爽影院视频在线观看，發(fā)現(xiàn)在某一等溫層內(nèi)可能存在微重力構(gòu)造圈91免费A级毛片，其厚度約為1000km左右；最后在地學(xué)研究向整體化和深部化發(fā)展趨勢下日韩欧美在线一区二区，預(yù)期這個(gè)結(jié)果將有助于理解地球深部發(fā)生的各種物理過程且與地震S波在核－幔之間層中消失觀測事實(shí)相一致天天摸天天爽视频69视频。

The independent Agents are adopted to complete the specific tasks from sensing temperature of axles to display curve of axle's temperature and to actions of effectors, so the knowledge distribution and control distribution is implemented in this system. It improves the real-time ability, reliability, maintenance and extendibility. It also realizes the intelligence of temperature's sense and control though the communication, coordination and cooperation among Agents.

該設(shè)計(jì)采用獨(dú)立Agent完成了從軸溫?cái)?shù)據(jù)的采集、處理到執(zhí)行機(jī)構(gòu)產(chǎn)生控制動(dòng)作再到人機(jī)界面的實(shí)時(shí)顯示等一系列任務(wù)国产一级Av免费无码，實(shí)現(xiàn)了軸溫監(jiān)控的知識分布和控制分布人人摸操人人操摸，提高了系統(tǒng)的實(shí)時(shí)性、可靠性最新免费一区二区在线观看、可維護(hù)性和可擴(kuò)展能力色婷婷国产精品视频一区二区，并且通過多Agent間的相互通信、協(xié)調(diào)與合作實(shí)現(xiàn)了軸溫監(jiān)測和控制的智能化曰批全过程免费视频观看1000。

Through analyzing the heavy mineral combination and its distribution characters in Malang Area of Santanghu Basin, the source direction of deposits were judged in Malang Area by using the type of the mineral combination, its percentage content and curve of stability coefficient, in combination with the percentage distribution of quarts sandstones in each stratum.

通過對三塘湖盆地馬朗地區(qū)重礦物組合及分布特征的分析，利用重礦物組合類型国产产一区二区三区久久毛片国语、百分含量及重礦物穩(wěn)定系數(shù)的曲線特征美女羞羞视频网站，結(jié)合各層系的石英砂巖百分含量分布，判斷了馬朗地區(qū)的沉積物源方向亚洲欧美自拍偷拍。