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The results were as follows:(1) The spectral sensitivity response at 14 monochromatic light selected through 340nm to 605nm occurred in curve with multiple peaks, the primary peak in 340nm (ultra-violet) is the highest response rate of phototaxis (21%), the secondary in 524nm, and the rest in 400-440nm and 483nm in order;(2) The response rate of phototaxis is increasing as the relative intensity of light, it is showed as curves with inverse "L" shape in white light and the monochromatic light of 483nm, as an upward ladder at 524nm and a near straight line at 340nm. However, the response rate could be detected at the lowest intensity and not arrived to the summit at the strongest yet;(3) The effect of sex to response to the spectral sensitivity and intensity is not significant;(4) There was not significant photophobism response to light for the ladybird, the behavior probably derived from phototaxis or partly due to random movements. It can be concluded that both the spectrum and intensity of light stimulus gave rise to the phototaxis of P.
结果显示:(1)在340~605nm波谱内其光谱趋光行为反应为多峰型,峰间主次不明显,紫外340nm处峰最高,趋光反应率达21%,其它各峰依大小次序分别位于绿光524nm、蓝光400~440nm和483nm处;(2)随光强增强其趋光反应率增大,白光和483nm刺激时其光强趋光行为反应呈一倒"L"型式样,524nm时呈一阶梯型,340nm时为一较平直的线型;光强最弱时仍均有一定趋光率,最强时均未出现高端平台;(3)性别对其光谱和光强度行为反应均有一定影响,但影响不大;(4)龟纹瓢虫无明显的避光反应,其避光行为可能是趋光行为衍生或其随机活动造成。
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This article explained that the detoxicating result was satisfied in 25℃ of environmental temperature, the decomposed rate of GS(gleucsino-lates),phytin acid and tannins was 96.8%,94.5% and 93.3%.
试验证明了菜籽饼的脱毒作用主要是由细菌、霉菌引起,放线菌次之。环境温度25℃最为适宜,在25℃条件下品温变化较理想,GS的降解率96.8%,植酸降解率94.5%,单宁的降解率93.7%。
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In the conformation change process, the second hyperpolarizability values of system and for singlet are negative system (a of 45° and 135° with the exception, and less than the absolute value of all triplets. The second hyperpolarizability values of system for singlet and triplet states are positive and in molecular close plane configuration time, the value of triplet is greater than that of the singlet.
在构象变化过程中,体系和单重态的二阶超极化率均为负值体系(a的45°和135°除外,且绝对值都小于三重态的二阶超极化率值,体系的单三重态二阶超极化率值均为正值,且在分子接近平面构型时,三重态的γ值大于单重态。
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By computer simulation, we analyze the influence of the incidence plane, incidence angle and thickness of air gap on transmittance, and the dependence of the transmittance on wavelength is given in the spectral range which is required by the instrument system using Sellmeier dispersion equation. The transmittance of Grand-Taylor prism is tested in experiment, and the results are in good agreement with the theoretical results, so the correctness of the theory is verified.
论述了自行设计研制的偏振干涉成像光谱仪的工作原理,分析了其核心部件格兰-泰勒棱镜的分光机理;运用光线追迹方法,推导出了格兰-泰勒棱镜全视场角透过率计算公式;通过计算机模拟分析了入射面、入射角和空气隙厚度对该棱镜透过率的影响,并利用方解石Sellmeier色散方程,给出了该棱镜在仪器系统要求的光谱范围内透过率与波长的关系曲线;实验测试结果与理论计算公式相符,验证了理论公式的正确性。
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Combining with the National Natural Science Foundation ofChina(No.50478032), following researches were done in this thesis: 1 The variation regularity of the ultimate anti-bending capacity of therectangular-sectioned beam with different corrosion has been obtained through thequalitative analysis of 48 beams (32 corroded beams and 12 comparing beams) withaccelerated corrosion; 2 The conclusion has been obtained that the strain of corroded steel bar andconcrete no longer fit in with the assumption of plane section through the analysis ofthe strain data, the strain relation of steel bar and concrete in the mid-span section ofvariously corroded beams at ultimate has been obtained. Through the building of newgeometric relation, the expression of the height of compressive area in the corrodedbeam with rectangular section has been deduced, and the formula with corrosion rateas the main variable for the anti-bending capacity of the corroded concrete beam hasbeen suggested and verified by experiment.; 3 The influence of steel bar corrosion and the concrete regression to the flexureductility coefficient of the corroded structure component has been analyzed. Based onthe relation of steel bar and concrete at yield and ultimate, the expression for theflexure at yield and ultimate of corroded reinforced concrete beam, and the model forthe calculation of the flexure ductility has been built.
本文结合国家自然科学基金项目(50478032)"既有钢筋混凝土桥梁时变可靠度研究",主要进行了以下研究工作: 1通过对48根快速锈蚀钢筋混凝土矩形截面梁(32根锈蚀梁和12根对比试验梁)数据的定性分析,得到了不同锈蚀率下,锈蚀钢筋混凝土矩形截面梁极限抗弯承载力的变化规律; 2通过对应变数据的分析,论证了锈蚀构件钢筋和混凝土的应变不再符合平截面假定的结论,并通过回归分析得出了不同锈蚀率的螺纹钢筋梁和光圆钢筋梁在极限弯矩作用下,跨中截面处钢筋应变和钢筋处混凝土应变的关系,通过构造新的几何关系,得出了锈蚀钢筋混凝土矩形截面梁计算受压区高度的表达式,既而得出了以锈蚀率为主要变量的锈蚀钢筋混凝土矩形截面梁的正截面抗弯计算建议公式,并通过试验数据加以验证; 3分析了钢筋锈蚀和混凝土劣化对锈蚀构件曲率延性系数的影响,结合钢筋屈服和极限弯矩两种状态下钢筋和混凝土的应变关系,分别得到了锈蚀钢筋混凝土矩形截面梁屈服曲率和极限曲率的计算表达式;既而推导出曲率延性系数的计算模型。
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Under the same conditions, the mode distortions induced by the tilted mirror are smaller for the plano-concave resonator with the Gaussian-reflectivity, and the relations of the field distributions with Gaussian-reflectivity to the tilt angles are different from those with even-reflectivity.
同等条件下,高斯反射率平凹腔腔镜倾斜对谐振腔引起的模畸变小于均匀反射率平凹腔,且基模光场及本征值随镜倾斜的变化关系稍不同于均匀反射率平凹腔。
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Based on the concept that land surfaces are of low polarization for reflected sunlight, a new method for simultaneously retrieval of surface albedo and aerosol optical thickness was given by using polarized radiance as well as total radiance measured by POLDER instrument.
陆地上空气溶胶的反演一直是卫星对地观测的一个难点,针对这个难点,本文提出联合利用偏振反射率和总反射率来同时提取陆地上空的大气气溶胶和地表反射率的反演方案,围绕此方案展开了以下工作
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The theatrical foundation of this paper is option pricing model. This paper focuses on the Black-Scholes model, details the basic postulation, principle and pricing formula. And it is pointed out that the postulation that volatility is constant can't reflect the varying market volatility. Violation of this postulation will lead to biased pricing results.
期权定价模型是本文分析的理论基础,文中以Black-Scholes模型为主,分析了期权定价模型的基本假设、原理与定价公式,指出波动率为常数的假设不能反映市场波动率的变化状况,对该假设的违背将使定价结果产生偏差,因此,波动率在期权定价中有重要的作用。
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The design,cross-linking and pyrolysis of preceramic polymers as well as addition of active filler ,all of which influence the ceramic yield,were analyzed.
针对先驱体转化法陶瓷产率低的问题,从陶瓷先驱体的设计、先驱体的交联工艺、裂解工艺以及活性填料的添加等方面分析了影响陶瓷产率的各种因素,总结出提高陶瓷产率的措施,最后提出今后进一步研究的方向。
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Effect of active filler on joining property of silicon carbide to itself by polysilazane;2. The design,cross-linking and pyrolysis of preceramic polymers as well as addition of active filler ,all of which influence the ceramic yield,were analyzed.
针对先驱体转化法陶瓷产率低的问题,从陶瓷先驱体的设计、先驱体的交联工艺、裂解工艺以及活性填料的添加等方面分析了影响陶瓷产率的各种因素,总结出提高陶瓷产率的措施,最后提出今后进一步研究的方向。
- 推荐网络例句
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We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.
索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称;三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起,称之为挽歌体诗人或者史诗诗人,他们被称为诗人,似乎只是因为遵守格律写作,而非他们作品的模仿本质。
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The relationship between communicative competence and grammar teaching should be that of the ends and the means.
交际能力和语法的关系应该是目标与途径的关系。
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This is not paper type of business,it's people business,with such huge money involved.
这不是纸上谈兵式的交易,这是人与人的业务,而且涉及金额巨大。