下水平

Properties of efficient portfolios and the efficient frontier to the model are systematically analyzed. Our main results concerning the properties are: every efficient portfolio can be solved by minimizing portfolio risk under a given level of portfolio return or by maximizing portfolio return under a given level of portfolio risk; on the efficient frontier, the risk is a convex and strictly increasing function of the return and the return is a concave and strictly increasing function of the risk; the utility function on the efficient frontier can be expressed as a quasi-concave function of the risk or the return if the investor's utility function is quasi-concave.

从理论上系统地对该模型下的有效投资组合和有效前沿的性质进行了分析，结果表明：每一个有效投资组合可通过在给定期望收益水平的条件下最小化投资组合风险来获得，或者在给定风险水平的条件下最大化期望投资组合收益来获得；在有效前沿上，风险是收益的严格单调递增凸函数，收益是风险的严格单调递增凹函数；当投资者的效用函数是拟凹函数时，则有效前沿上的效用可表达成风险或收益的拟凹函数。

Result revealed :Long time resistance training could increase the level of NO, iNOS and TNF-a in serum of rat, which had correctitude correlations in diversification . The level of NO, iNOS and TNF-a in serum of untrained rat had a markedly raise after one time exhausting exercise, which was likely to have relationto the answer of organism to exercise. During exercise, the raise of level of NO, iNOS and TNF-a in serum of untrained rat could promote blood circle ,transportation of substance and energy, level of immunity and was seasoned with other level of cytokines .

结果显示，大鼠长期有氧训练能够提高其血清中NO、iNOS和TNF一a水平，三者变化呈现正相关；未训练大鼠在一次性运动至力竭时，NO、NOS和TNF一a水平显著上升，这可能与一次性运动相适应机体生理应激有关，TN下一a、NO、iNOS含量/活性水平显著提高，促进血液循环，提高物质能量的运输，优化免疫水平以及与机体内其他细胞因子水平相适应。

The Hausdorff measure for the level sets of multi-parameter symmetric stable processes has been obtained and the inner connection of the measures and local times for it has been demonstrated, which describes the fractal nature for the level sets of this kind of processes. As we know, it is always one of the focuses in the field of random fractal. The reasult of the existence and continuity of the local time for multi-parameter stochastic processes with stable components has been got in the project. Then we gained the measure for the random fractal sets such as the range and graph of this kind of processes. Furthermore, a progress besides the mentioned above in the project is that we have resolved the multifractal analysis of the sample paths for Brownian sheet, that is the multifractal decomposition of white noise in high dimension.

解决了多指标对称稳定过程水平集的Hausdorff测度问题，同时给出N指标d维稳定过程水平集的Hausdorff测度下界的最佳估计，它们揭示了其水平集的测度与局部时之间的内在关系，刻划了多指标对称稳定过程水平集的分形特征，表明了研究此类问题的积极意义，该问题是随机分形研究领域的国内外学者所关注的热点问题之一；解决了多指标稳定分量过程的局部时存在性与连续性问题，进而解决了由多指标稳定分量过程产生的随机分形集--象集、图集的测度问题；此外，本研究项目还解决了布朗单样本轨道的重分形分析，即高维白噪音的重分形分析问题。

Research for the Seismic Behavior of the Structural System with Limited Stiffness Outrigger and with Rigid Outrigger

在超高层建筑结构设计中，当采用常规的结构体系无法控制水平力作用下的结构水平位移时，往往会增设带水平伸臂桁架的加强层，限制外框柱的位移，使外框柱和核心筒变形协调，达到增加结构刚度，减小结构水平位移的目的。

The aims of disaster study and risk study are tent to unanimousness, both will offer the theoretical basis for sustainable development models. Regional safety construction based on disaster study is converting into regional risk management system based on risk study. So the authors consider that sustainable development model is the regional development model under a certain risk level, and the risk level relies on the regional safety construction level that integrates the regional economic level and social cultural system. Strengthening subject construction of disaster and risk study in China, national laboratory construction, and organization and practice of key items are imperative. And we should put the study emphasis on the vulnerability assessment system and models, risk assessment system and models, disaster and risk management mode of typical region, disaster and risk emergency control scenario, disaster and risk regions.

灾害与风险研究的目标正在趋向一致，都集中在为可持续发展模式提供科学依据；基于灾害研究的区域安全建设正在向基于风险研究的区域风险管理体系转变，由此认为可持续发展模式就是接受一定风险水平条件下的区域发展模式，一定风险水平依赖于由区域经济水平与社会文化体系相关联的区域安全建设水平；加强我国灾害与风险科学研究的学科建设、国家实验室建设、重大项目的组织与实施已势在必行；重点开展灾害脆弱性评价体系与评价模型、风险评价体系与风险评价模型、典型区域灾害与风险管理范式、灾害与风险应急控制预案、灾害与风险区划等方面的研究。

The UV and IR spectroscopic studies of the monomer films showed that the photoreaction ratio of monomer (about 50%) was higher than the corresponding photosensitive polymer (about 10%, PVCi). The polarized IR spectra proved that obvious anisotropic absorption was displayed in the irradiated photosensitive film. With polarizing microscopy method, we found that these kinds of photoalignment films exhibited good alignment ability, and the stability of the photoalignment film could reach about 100℃. 2 A photosensitive self-assembled monolayer was fabricated that contained photo-cycloadditable groups, such as, coumarin and cinnamate. The reaction process were detected by contact angle method because the IR absorption of monolayer was very weak. The photosensitive self-assembled monolayer promote uniform alignment of nematic liquid crystals by LPUV, and it thermal stability could reach about 130℃. 3 A cationic bolaform amphiphiles was synthesized that had two photosensitive double bonds, and can be polymerized by ultraviolet. A layer-by-layer self-assembled deposition film was prepared in aqueous solution by using this material and poly (sodium 4-styrenesulfonate). The UV-Vis. spectra proved that the multilayers film was uniform and layer-by-layer. When LPUV irradiated the film, the photopolymerizable double bond underwent [2+2] cycloaddition, and the production of the reaction distributed along the polarized direction of incident LPUV. Polarized UV-Vis. spectra indicated that the irradiated self-assembled multiplayer film was anisotropic, and the dichromic ration is about 0.09, it is higher than the spin-coating method of photosensitive polymer or monomer. We used this anisotropic film as alignment layer of nematic liquid crystals, and obtained a uniform and stability alignment result, the static contrast ratio is about 100, which is very close to application of liquid crystal device. This thesis is an instance that the photochemical material was used in the physics region of liquid crystals, the route that was from photosensitive monomer, self-assembled monolayer film to self-assembled multiplayer film was undergone, by this logical research method photoailgnment of liquid crystal was extended and consummated.

围绕上述思路开展了如下工作：1合成了三种可进行光二聚反应的光敏小分子单体，LPUV 辐照制作了光控取向膜；用紫外-可见光谱法和红外光谱法分析了薄膜中的光化学反应，发现小分子的光反应程度可达到50%以上，至少比光敏高分子高出5倍；薄膜的偏振红外光谱证实，经过LPUV 辐照后薄膜出现了明显的各向异性；将小分子光控取向膜制成液晶器件，在偏光显微镜下观察看到均匀一致的液晶取向；并且热稳定性达到100℃左右，接近实用化要求。2制备了含肉桂酸、香豆素基团的自组装单层膜；采用接触角的方法监测自组装反应的动力学过程；紫外-可见光谱证实了自组装单层膜在石英基板表面形成；自组装单层膜经LPUV 辐照后能诱导液晶均匀取向，而且热稳定性可达130℃，热稳定性进一步提高。3合成了含有光敏双键的双季铵盐，在水溶液状态下将它和聚乙烯基苯磺酸钠沉积生成layer-by-layer 自组装多层膜，紫外-可见光谱证实这是一个逐层均匀的沉积；在LPUV 照射下，自组装膜中的光敏双键按照偏振方向发生[2+2]环加成反应，形成取向膜，用二向色性值评价的分子取向度高于高分子及小分子光控取向膜的水平；实验证明用自组装多层膜制成的液晶器件亮暗态均匀，静态对比度约为100，达到实用化器件的水平。

According to the characteristics of the cold insulation box of Fractionating tower, it is considered that the effect of inner-filling on the construction is related with the variable density, then the relative formulation in the condition of n...

根据分馏塔保冷箱的特点，认为内填料对结构的作用与变密度有关，推导了无水平位移下的相关公式；对此结构在有水平位移下内填料的发育进行仿真分析，并将内填料的作用与结构的楼层柱的旋转角建立联系；最后根据得到的结论对分馏塔保冷箱在风与内填料作用下进行了非线性分析，得到结构的极限承载力。

Venous blood was drawn from 35 old hypertension patients when blood pressure was nomial and abnormal, respectively. Epinephrine. norepinephine, endothelins, angiotensin Ⅱ and calcitonin-gene-related peptide were determined by radio-immunity. The above five cytokines were also determined in 33 old healthy people. The cytokines levels were compared between the normal and abnormal blond pressure in hypertension patients and also between the old hypertension patients and healthy persons. The correlation between blood pressure and cytokines were analyzed.

35例老年EH患者，血压正常时和血压波动时各抽取静脉血一次，放射免疫法检测肾上腺素、去甲肾上腺素、内皮素、血管紧张素Ⅱ和降钙素基因相关肽水平，同时检测33例健康老年人群各因子水平，比较EH患者血压波动前后各因子水平的差异和血压正常范围时两组人群各因子水平差异，分析不同状态下血压和各因子水平之间的相关性。

This paper set a static game model between one manufacturer and one supplier based on knowledge spillovers.

本文针对这种现象，建立了一个基于双向知识溢出的单个制造商与单个供应商之间进行知识创新的静态博弈模型，通过比较二者在采取非合作知识创新与合作知识创新两种策略下的均衡结果，表明二者上述两种策略下的创新投入水平与对方的知识溢出程度正相关，同时得出与现实情况一致的结论，即合作知识创新下所获得的创新绩效水平比非合作知识创新时有所增加。

Topological optimization system of variable density method based on finite element software;2. Interface depths inversion of potential field data with variable density model;3. According to the characteristics of the cold insulation box of Fractionating tower, it is considered that the effect of inner-filling on the construction is related with the variable density, then the relative formulation in the condition of n.

根据分馏塔保冷箱的特点，认为内填料对结构的作用与变密度有关，推导了无水平位移下的相关公式；对此结构在有水平位移下内填料的发育进行仿真分析，并将内填料的作用与结构的楼层柱的旋转角建立联系；最后根据得到的结论对分馏塔保冷箱在风与内填料作用下进行了非线性分析，得到结构的极限承载力。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失