查询词典 boundary value problem

So, in this paper, a circular cavity witha large radius is used to replace the straight boundary of thehalf space, then the half space problem can be changed tothe scattering problem of two circular cavities to the steadyincident P-wave . Having the aid of the mature cylinderfunction theory, the general solutions of the wave functionscan be given, and an infinite linear algebraic equations ofthe unknown coefficients in the wave functions can be gottenwith the boundary conditions and the Fourier complex seriesexpansion technology, the infinite linear algebraic equationscan be approximately solved by the finite trunction withsatisfying some definite precision, at the basis of thissolution of the equation, the variations and the lay-outs ofthe DSCF at the circular cavity boundary vs. the differentincident angles, the different embedded depths of thecircular cavity as well as the different dimensionless wavenumber of the incident P-wave.

为此，本文采用一个半径很大的圆孔来代替半空间的直边界，将该半空间问题转化为一无限大空间中两个圆孔对稳态P波的共同散射问题，借助于成熟的柱函数理论，通过写出问题波函数的一般形式解，利用问题的边界条件，并采用复数傅立叶级数展开技术将其化为一个仅包含问题波函数中未知系数的一无穷线性代数方程组，在满足一定计算精度的前提下，通过有限项截断进行近似求解，进而讨论了圆孔边界处的动应力集中系数随不同入射角、不同的圆孔掩埋深度、入射波的不同无量纲波数以及介质的泊松比变化和分布情况。

In this project, we study the theory of higher order differential equations in Banach spaces and related topics. We solve an open problem put forward by two American Mathematicians and two Italian Mathematicians concerning wave equations with generalized Weztzell boundary conditions, introduce an existence family of operators from a Banach space $Y$ to $X$ for the Cauchy problem for higher order differential equations in a Banach space $X$, establish a sufficient and necessary condition ensuring $ACP_n$ possesses an exponentially bounded existence family, as well as some basic results in a quite general setting about the existence and continuous dependence on initial data of the solutions of $ACP_n$ and $IACP_n$. We set up quite a few multiplicative and additive perturbation theorems for existence families governing a wide class of higher order differential equations, regularized cosine operator families, regularized semigroups, and solution operators of Volterra integral equations, obtain classical and strict solutions having optimal regularity for the inhomogeneous nonautonomous heat equations with generalized Wentzell boundary conditions, gain novel existence and uniqueness theorems,which extend essentially the existing results, for mild and classical solutions of nonlocal Cauchy problems for semilinear evolution equations, present a new theorem with regard to the boundary feedback stabilization of a hybrid system composed of a viscoelastic thin plate with one part of its edge clamped and the rest-free part attached to a visocelastic rigid body. Also we obtain many other research results.

在本研究中，我们对Banach空间中的高阶算子微分方程的理论以及相关理论进行了深入研究，解决了由美国和意大利的四位数学家联合提出的一个关于广义Wentzell边界条件下的波动方程适定性的公开问题，恰当地定义了Banach空间中的高阶算子微分方程Cauchy问题的算子存在族及唯一族，建立了齐次和非齐次高阶算子微分方程Cauchy问题适定性的判别定理，获得了关于高阶退化算子微分方程的算子存在族、正则余弦算子族、正则算子半群、Volterra积分方程解算子族的乘积扰动和混合扰动定理，得到了关于以依赖于时间的二阶微分算子为系数的一大类非自治热方程非齐次情形下的时变广义Wentzell动力边值问题的古典解、严格解的最大正则性结果，获得了半线性发展方程非局部Cauchy问题广义解和经典解存在唯一的判别条件，从实质上推广了现有的相关结果；得到了一部分边缘固定而另一部分附在一粘弹性刚体上的薄板构成的混合粘弹性系统的边界反馈稳定化的新稳定化定理，还建立了一系列其他研究结果。

In this research,the indexes relating to the quality of the fried oil,including the content of the ploymers,acid value,iodine value,saponification value,peroxide value,the content of the diglyceride,oxidation stability,viscosity,were detected.The results showed that with the frying time prolonging,the content of the polymers and viscosity increased greatly,iodine value and saponification value decreased,peroxide value and acid value increased,and the content of unsaturated fatty acid reduced,a little of diglyceride produced.

在食用油煎炸过程中，对油脂品质相关的指标(包括酸值、碘值、皂化值、过氧化值、脂肪酸组成、氧化稳定性、黏度、聚合物的含量以及甘一酯、甘二酯和甘三酯的含量)进行检测，结果表明，随着煎炸时间的延长，煎炸油中的聚合物含量大大升高，黏度增大，有少量甘二酯生成，不饱和脂肪酸含量下降，碘值、皂化值降低，酸值、过氧化值升高。

The second part for 2-5, carried on the detailed treatise to each step of the article frame. Among them, chapter 2 mainly introduces the theories of total value management and real estate, paves the way to analyze the next substances; chapter 3 introduces the basic theories on value engineering and the significance of value engineering application in project decision-making, and finally indicates the processes and methods of value engineering application in project decision-making with particular analysis of a case; Chapter 4 describes the management of customer value, this part use the factorization methods and factorize the factor of customer value, establishes the step analysis evaluation model, use the SPSS software to analysis the data, scooping out the "latitude degree" that concealed, which customers pay attention to. According to these, this part puts forward the factor classification and improvement; Chapter 5 describes the society responsibilities that the real estate enterprises should afford, constructs a system of target about society value management and poses the specific methods of society value management.

第二部分是本文的主体部分，为二到五章，第二章主要介绍了全面价值管理和房地产的基本理论，为下面的分析做好基础；第三章介绍了价值工程的基本原理以及应用价值工程的意义，并通过案例与理论的结合，论述了价值工程在项目决策应用中的程序和方法；第四章介绍了顾客价值的管理，这部分尝试用因子分析方法把顾客价值因素作为变量，建立顾客价值管理的层级评价模型，利用SPSS统计软件对调查数据进行分析，挖掘变量背后掩藏的"纬度"，即顾客关注的大的价值要素，并根据这些要素的重要性提出了价值要素分类以及改进的思想；第五章描述了房地产企业应承担的社会责任，构建了房地产企业社会价值管理指标体系，并指出了其进行社会价值管理的具体办法。

Where is a partial loss of goods, merchandise, or other moveables, the measure of indemnity, subject to any express provision in the policy, is as follows:（1）Where part of the goods, merchandise or other moveables insured by a valued policy is totally lost, the measure of indemnity is such proportion of the sum fixed by the policy as the insurable value of the part lost bears to the insurable value of the whole, ascertained as in the case of an unvalued policy:(2) Where part of the goods, merchandise, or other moveables insured by an unvalued policy is totally lost, the measure of indemnity is the insurable value of the part lost, ascertained as in case of total loss:(3) Where the whole or any part of the goods or merchandise insured has been delivered damaged at its destination, the measure of indemnity is such proportion of the sum fixed by the policy in the case of the valued policy, or of the insurable value in the case of an unvalued policy, as the difference between the gross sound and damaged values at the place of arrival bears to the gross sound value:(4)"Gross value" means the wholesale price, or, if there be no such price, the estimated value, with, in either case, freight, landing charges, and duty paid beforehand; provided that, in the case of goods or merchandise customarily sold in bond, the bonded price is deemed to be the gross value.

货物、商品或者其他动产发生部分损失的，除保险单另有明文规定外，赔偿范围如下：(1)如果定值保险单承保的货物、商品或者其他动产的一部分发生全损，赔偿范围为保险单确定的保险金额中的比例部分，该比例为灭失部分的可保价值占全部可保价值的比例部分。可保价值的确定与不定值保险相同；(3)若不定值保险单承保的货物、商品或者其他动产的一部分发生全损，赔偿范围为损失部分的可保价值，可保价值的确定与全损时相同；(4)如果被保险货物或商品的全部或者一部分以受损状态运抵目的地，赔偿范围以完好毛值与受损价值的差额占完好毛值的比例计算，在定值保险单情况下，是保险单确定的金额的该比例部分，或者，在不定值保险单情况下，是可保价值的该比例部分；(5)"毛值"是指货物的批发价格，如果没有这种价格，则是货物的估计价值，不论哪一种情况，再加上已预先付讫的运费、卸货费和关税之后的价值；但是，如果货物或商品按惯例在关仓出售，那么关仓价格就视为毛值。

Directed by Dialectical materialism and Historical materialism of Marxism, the Article conjoint the point of theory and practice, history and praxis to analyze the evolvement and intension of Higher Education value in different periods of China, and point out that the springboard of the basic value of Higher Education in history is social value which involve polity value, economy value, science and technology value. Then estimate the various social value tendencies and hackle the individual value thought in old China.

本文以马克思主义辩证唯物主义和历史唯物主义为指导，从理论与实践、历史和现实结合的角度入手，首先分析了中国历史上不同时期高等教育价值的具体演变和内涵，指明了历史上的高等教育基本价值出发点在于其社会价值，包括政治价值、经济科技价值等，并对高等教育的各种社会价值取向进行了评价，同时也对个体价值教育思想进行了梳理。

This paper criticizes some theories about value of natural resources, explains the value of forest resources with Marx's labor axiology,thinks that the value is determined by the labor-time in socially necessary on utilized the worst woodland which based social wants in process of reproduction of forest resources,not by the total price of various use value.It puts forward that the value of a use value of forest resources is a compensation of stated value of forest resources on this use value,and its compens...

该文批判了西方有关自然资源的效用论、地租论和传统马克思主义经济学中的无价论、实用论，运用马克思劳动价值论解释森林资源的价值，认为其价值量决定是由森林资源再生产中已利用的最差等级林地的以社会需要为基础的社会必要劳动时间决定的，而不是森林各种使用价值的加总，各种使用价值的价值量是一定的森林资源价值量在该使用价值上的分摊量，其价值补偿是成本补偿而不是效益补偿。

Where is a partial loss of goods, merchandise, or other moveables, the measure of indemnity, subject to any express provision in the policy, is as follows:（1）Where part of the goods, merchandise or other moveables insured by a valued policy is totally lost, the measure of indemnity is such proportion of the sum fixed by the policy as the insurable value of the part lost bears to the insurable value of the whole, ascertained as in the case of an unvalued policy:(2) Where part of the goods, merchandise, or other moveables insured by an unvalued policy is totally lost, the measure of indemnity is the insurable value of the part lost, ascertained as in case of total loss:(3) Where the whole or any part of the goods or merchandise insured has been delivered damaged at its destination, the measure of indemnity is such proportion of the sum fixed by the policy in the case of the valued policy, or of the insurable value in the case of an unvalued policy, as the difference between the gross sound and damaged values at the place of arrival bears to the gross sound value:(4)"Gross value" means the wholesale price, or, if there be no such price, the estimated value, with, in either case, freight, landing charges, and duty paid beforehand; provided that, in the case of goods or merchandise customarily sold in bond, the bonded price is deemed to be the gross value.

货物、商品或者其他动产发生部分损失的，除保险单另有明文规定外，赔偿范围如下：(1)如果定值保险单承保的货物、商品或者其他动产的一部分发生全损，赔偿范围为保险单确定的保险金额中的比例部分，该比例为灭失部分的可保价值占全部可保价值的比例部分。可保价值的确定与不定值保险相同；(3)若不定值保险单承保的货物、商品或者其他动产的一部分发生全损，赔偿范围为损失部分的可保价值，可保价值的确定与全损时相同；(4)如果被保险货物或商品的全部或者一部分以受损状态运抵目的地，赔偿范围以完好毛值与受损价值的差额占完好毛值的比例计算，在定值保险单情况下，是保险单确定的金额的该比例部分，或者，在不定值保险单情况下，是可保价值的该比例部分；(5)&毛值&是指货物的批发价格，如果没有这种价格，则是货物的估计价值，不论哪一种情况，再加上已预先付讫的运费、卸货费和关税之后的价值；但是，如果货物或商品按惯例在关仓出售，那么关仓价格就视为毛值。

Among them, the first quarter of the market value of fund holdings evaporation 453.213 billion yuan, with the end of 2007 the market value of 2.400673 trillion yuan of holding 18.88 percent compared to大亏; the second quarter, holding the market value of 225.916 billion yuan evaporation, shrinking the market value of 20.24 percent margin; third quarter of the market value of evaporation of 259.503 billion yuan shares, value shrank by 20.6 percent rate; by three at the end of the shareholding and the December 16 closing price, the fund market value of 609.437 billion yuan holdings, since the fourth quarter the market value of re-evaporation of the fund holdings 679.89 billion.

其中，该基金持有的蒸发四五三二一三○○○○○○元市值第一季度，与2007年底2400673000000持有18.88亿美元，比大亏元的市场价值，第二季度，持有的225.916亿美元的市场价值人民币蒸发，减少了百分之利润20.24市场价值；有关的2595.03亿元的股票市值蒸发第三季度，价值缩减率百分之20.6；由三个股份制年底和12月16日收盘价计算，该基金市值6094.37亿元持有，第四季度以来的转口市场价值基金持股6798.90亿蒸发。

We deal with the biharmonic equation and proved that under our assumptions, the week solution of the natural boundary value problem strongly converges (in H~2) to that of the first boundary value problem.

为克服这一困难，我们用具自然边界条件的边值问题(在二阶椭圆型方程情形为第三边值问题)去逼近相应的第一边值问题，并以重调和方程为例，证明了在一定条件下，其具自然边界条件的边值问题的弱解在H~2的意义下强收敛到相应的第一边值问题的弱解。

Looking to bounce back from defeat against Cesena last weekend, the Calabrian boss will be sticking to his tried and tested 4-3-3, with Lopez and Sedivic joined up front in Giampaolo's absence by either Nanni or Plasmati.

鉴于上周末对切塞纳的比赛中反败为胜，这支南方球队将会更坚持其一贯而有效的4-3-3阵型，洛佩斯和塞德维奇将取代受伤缺席的詹保罗，和纳尼或者帕斯马蒂中的一个搭档锋线。

Meanwhile, their exposure to the more freewheeling ways of the West broadened dramatically.

另外，西方较自由的生活方式对年轻人的影响增大。