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First, in the composite hypothesis testing, circular dispersion error which is more practicable than horizontal and vertical error is used to discuss some problems of the dispersion of impact points; and the critical area of decision in the dispersion problem is analyzed; the specific expression of Bayesian risk is worked out, which ameliorates the method that only can get the approximate solution by calculating numerical integration.

由此,本文主要应用Bayes方法对以下几方面进行了探讨:首先,在复杂假设下,本文利用圆散布误差这一精度指标对落点散布鉴定问题进行研究,它比以往所用的纵、横向偏差精度指标更具现实意义;分析了此鉴定问题的决策临界区域;给出其Bayes风险的具体表达式,对用数值积分进行近似求解的方法进行了改进;在此基础上,通过极小化试验的风险确定最优试验数n,并讨论了决策中犯两类错误的概率,给出了验前信息的表示。

Department of Scientific History and Archaeometry; Graduate University of Chinese Academy of Sciences; Beijing 100049;4.Institute of Archaeology; Chinese Academy of Social Sciences; Beijing 100710; China;The fabrication technologies in terms of phase composition,structure,firing temperature,porosity,density and water permeability of ceramic water pipes and contrastive ceramic tilesexcavated from Anyang Yin Ruins of Shang dynasty were studied by X-ray fluorescence,X-ray diffraction and dilatometer,respectively.It was found that the contents of CaO,K2O,MgO and P2O5 in CWP were relatively higher than those in contrastive CT.The difference was further confirmed by the mass ratio of flux...

采用X射线荧光、X射线衍射、热膨胀等分析手段对比研究了安阳商代陶水管的制作工艺,发现陶水管化学成分中各类熔剂的质量分数均略高于对比陶片中熔剂的质量分数,CaO、K2O、MgO等助熔剂与A l2O3的质量比进一步证实该现象,而这种差异性则外在地表现为陶水管的气孔度低于对比陶片以及陶水管热膨胀曲线中出现玻璃化现象,该结果表明陶水管原料应为一种易熔粘土,或者在沉淀粘土中人为地掺和了草木灰类掺和料,这有利于陶水管烧制与成型,有助于熔剂在熔融状态下,较好地进入陶水管中的空隙,使陶水管变得更加致密,一定程度上有利于防止陶水管的渗水,显示出陶水管制作工艺的特殊性。

The compound semiconductors of III-V Group just as gallium arsenide have hige carrier transition ratio and good optoelectronic performance, so the study and application of these materials are very hot.

以砷化镓为代表的Ⅲ-Ⅴ族化合物半导体具有高度迁移率和比硅更优异的光电子等性能,许多国内外关于这类材料的研究和应用一直是热门课题。

According to the requirements of aspectual component assembling platform and computing on demand middleware platform,this paper proposes a kind of Dynamic Aspect Weaving model—DAWeaver.It uses BCEL to modify class file,calls aspect component reflectively through aspect container,and supports dynamic weaving.

依据方面化构件组装以及按需计算中间件平台需求,提出一种动态方面编织模型——DAWeaver,该模型利用BCEL修改类文件,通过方面容器反射调用方面组件,支持了编织的动态性。

More and more attention is being paid to their functions in anti-cancer, analgesia, regulating cholesterol level in the human body,preventing atheroma,deinsectization and other aspects.

柠檬苦素类化合物在抗癌、镇痛、调节体内胆固醇水平、防止动脉粥样化和除虫等方面的作用,越来越受到人们的重视。

However, the presence of steric hindrance and electron-withdrawing groups on the benzene ring would decrease the activity of phenols.

苯环上有供电子基团的酚类化合物反应活性比较好,而钝化基团的存在,则会降低酚羟基的反应活性。

Similarly NAC was also protective in a bleomycin fibrosis model. Moreover, amiodarone, a benzofuran compound with redoxcycling properties induces oxidative lung injury.

同时NAC也对由博来霉素所介导的纤维化模型有保护作用;此外,胺碘酮和苯基呋喃类化学物,具有氧化还原环,可介导肺的氧化损害。

Six novel dihydrobenzofuran and benzofuran neolignans compounds(1~6) were synthesized by knoevenagel reactiton,esterfication, biomimetic oxidative coupling ,DDQ dehydrogenation,reduction and hydrolysis with 4-hydroxybenzaldehyde and malonic acid as starting material.

以对羟基苯甲醛和丙二酸为原料,经Knoevenagel缩合反应,酯化、仿生氧化偶联、DDQ脱氢、还原和水解等反应步骤,合成了6种未见文献报道的苯并二氢呋喃新木脂素和苯并呋喃新木脂素类化合物(1~6)。

In the market and scientific fundamentalism bewitchment and coerced devoid of humanity self-sufficient, Tian Ran retreated to their homes, of course, there would be no dwelling of the soul, and even thought, language, and even emotional expression have been incorporated into the same institutional paradigms of "currency" of quantitative analysis, philosophy of life is no longer straight leading edge expounded the meaning of religion is no longer concerned about the limited nature of anxiety and thereby losing the salvation of the inherent features, and people still pray and not gratuitous Su the expression of piety, but most are not based on hardship of life with spiritual sustenance, but the heterogeneity of the considerations and the rather alternative pop means "faith show."

在市场与科学原教旨主义的蛊惑与裹挟之下,没有了人性自给自足、可以恬然退守的家园,当然也就不会有灵魂的栖居之所,连思想、语言、乃至情绪表达都被纳入同一性的体制范式进行"货币化"定量分析,哲学不再有直抵生命堂奥的意义阐发,宗教不再关注有限性焦虑从而失去了内在的救赎功能,人们也还在求神拜佛而且不无端肃虔敬的表情,但大多不是基于人生困厄的心灵慰藉,而是异质化的另类利害权衡和颇具波普意味的"信仰秀"。

Let L and P be Lie color algebras and let M be a graded module over P, the crossed modules which make M as their kernal and P as their cokernal are considered. It is shown that under a suitable equivalent relation, there is a bijection between the set of the equivalent classes CML and the homogeneous components of degree zero of H~3.

从交叉模的定义出发,对于给定的Lie color代数L,P以及阶化P模M,考虑所有以M为核、以P为余核的L的交叉模,在这些交叉模之间定义了一个等价关系,由此得到交叉模的等价类集CML,证明了CML与三维上同调群H~3的零次齐次部分之间存在一一对应,从而可以利用三维上同调群对Lie color代数的交叉模进行分类。

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What would he tell Judith and the children?

他将怎样告诉朱迪丝和孩子们呢?

I this is at that time, the opinion with peacockish true girl is full of in a heart.

这就是当时的我,一个心中布满虚荣的女孩子真实的想法。

Oh, and I bought myself a new laptop," he said."

哦,我还给我自己买了一个新笔记本"他说。"