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The results showed that the light stabilizer BHW1 by adding component chelating metal ion in HALS complex had better light stability and balanced performance than other HALS complex .

实验表明:引入金属离子螯合剂组成的复合光稳定体系BHW 1在农用聚烯烃棚膜中应用效果良好,具有更为均衡的光、热稳定性能;自然曝晒实验和大田实验证明复合受阻胺光稳定剂的光稳定性能优于单组份光稳定剂,光稳定剂复合化是聚烯烃防老化最有成效的解决方式之一。

In the paper, the electrode system of the original TL/TSC measurement instrument is improved, which greatly facilitates sample exchange and increased liquid nitrogen's running and cooling speed. Through long time and repeated practice we finally find an effective method to prepare films. We've synthesized a new kind of organic photo-refraction material nitryl azobenzene grafting PVK and characterized it with IR spectra. We've also synthesized 5OCB and found the optimal mass ratio of PVK/5OCB/C60-49.8:50:0.2, and given the two-beam coupling testing result.

本文的主要工作是:首先对传统热发光和热激电流测量装置的电极系统进行了改进,使其在换取样品,液氮流动、冷却速度等方面都有了很大提高;摸索了较适合于热激实验的成膜方法;合成了一种新型的有机光折变材料硝基偶氮苯接枝PVK,并对其做了红外谱表征;合成了生色团物质5OCB,找到PVK/5OCB/C_(60)的最佳配比为49.8:50:0.2,并对该体系做了初步的光学测试。

Thermoluminescence and optically stimulated luminescence of PbWO_4 crystal doped with Y 3+ is investigated.

实验测试了掺钇的钨酸铅(PbWO4 )晶体的热释光和光释光。

Silver behenate nanocrystals exhibit higher properties, such as sensitivity and maximum density than microcrystals for thermographic or photothermographic systems.

在热敏和光敏感热显影体系,纳米级山嵛酸银晶体比微米级山嵛酸银晶体表现出更高的感光度和影像密度。

The saplings of tree species Schima superba, Castanopsis fissa and understory shrub species Psychotria rubra, Ardisia quinquegona were grown for 8 months under 100%, 36% or 16% of full sunlight.

4种植物生长于 10 0 %、36 %和 16 %的自然光下 8个月,叶片的光化学速率和热能耗散速率随光强增大而提高,热能耗散占总的光能吸收的比例也因光强不同而改变,16 %光下的相对热耗散率约为 40 %~ 45 %,10 0 %自然光下增大至 5 0 %~ 75 %。

A Photolysis of 5'-deoxyadenosylcobalamin in neutral aqueous solution and methylcobalamin in neutral and acid aqueous solution has been investigated using pulsed, time-resolved photoacoustic calorimetry in the temperature range of 10-30℃. The resultant enthalpy changes, namely CoC bond dissociation energies for the above cobalamins, 129±17, 163±21 and 176±23kJ/mol, respectively, are consistent with the values obtained by thermolytic kinetic method.

运用光声量热法研究10~30°C温度范围内辅酶〓在中性水溶液中和甲基钴胺素在酸性和中性水溶液中的光解反应,测定了其光解反应的焓变,即Co—C键离解能分别为129±17,163±21和176±23 kJ/mol,这些值和文献中用热分解动力学方法测得的值一致。

Replacing the total reflecting mirror in the plane-parallel resonator by a compound TIR prism (so-called a plane-compound TIR prism resonator or a TIR prism resonator for short), the offset of output faculae was resolved satisfactorily.

根据泵浦光在聚光腔中的传播规律,提出了一种适合于小型化器件的相交圆柱聚光腔的设计方法。本文通过大量的实验和理论研究,完成了工程化的小型Cr〓:YAG被动调Q重频热传导自然冷却:YAG激光器的结构和参数设计,并确定了器件的最佳工作点,最后完成了样品机的生产。

Two series of polyurethane acrylate grafted acrylic resins (Acr-g-TPU-PETA and Acr-gPPU-PETA) self-emulsifying systems are obtained by grafting -NCO group modified polyurethane acrylates with acrylic copolymer prepared from n-butyl acrylate, styrene,βhydroxyethyl methacrylate and acrylic acid The self-emulsifying systems showed Newtonian fluidity with viscosity closed to that of water, the solid contents were around 30% The T〓 of 15~4℃ for dried film before photocuring favored film formation at room temperature DSC and DMA results showed that PU-PETA is compatible with acrylic resin in the grafted resin The TG and dTG curves for Acr-g-PU-PETA samples were substantially different from the corresponding blends, and the brodened dTG peaks for photocured grafted resin suggest that there might be multiple interactions among chain segments The photocued film of the grafted resins self-emulsifying system exhibited good overall properties with polyurethane acrylate grafts ranging from 30% to 50%, and Acr-g-TPU-PETA series showed better properties than Acr-gPPU-PETA series The adhesion of the photocured film was 1~2 grade, impact strength was 50kg-cm and flexibility was 1mm The Shore hardness and the adhesion of the film decreased markedly if PETA was replaced by HEMA as photoactive group due to the lower C=C double bond content in the grafted resin The polyhydroxy amine-linked thioxanthones photoinitiators can be evenly dispersed in self-emulsifying system without color spot appearing in the dried film The films photocured with IV〓~IV〓 generally exhibited higher Shore hardness, gloss and solventresistance than that cured with Irgacure 2959 and did not induce the rusting of the iron substrate Pigmenting with titanium oxide had no effect on the photocuring The polyhydroxy amine-linked thioxanthone IV〓 and IV〓 can be new candidates for the formulation of titanium oxide pigmented photocurable water-borne coatings for their pale-yellow appearance and slight interference with the color of the coatings WB 4759 with high water-solubility coalesced and separated from the dried resin film, and even induced the rusting of iron substrate.

以丙烯酸丁酯,甲基丙烯酸-β-羟乙酯,丙烯酸及苯乙烯合成厂丙烯酸共聚树脂,并与含-NCO端基的聚氨酯丙烯酸酯接枝反应,经水性化后,得到两个系列(Acr-g-TPU-PETA和Acr-g-PPU-PETA)各5个不同配比的丙烯酸树脂接枝聚氨酯丙烯酸酯自乳化体系,粘度与水相近,为牛顿流体,固含量30%左右。光固化前干燥涂膜的玻璃化转变温度在-15℃~4℃之间,有利于室温下成膜。DSC及DMA谱表明两种树脂基本相容。Acr-g-PU-PETA的热失重行为明显不同于共混材料,接枝样dTG峰明显宽化,表明接枝样中链段之间的相互作刚有多重性,丙烯酸树脂与聚氨酯之间有一定的相容性。接枝树脂自乳化体系光固化涂层的综合性能以聚氨酯丙烯酸酯成分为50%~30%者相对较好,且以Acr-g-TPU-PETA系列更理想。光固化膜的附着力为1~2级,冲击强度为50kg·cm,柔软性多为1mm。以HEMA代替PETA作为接枝树脂的活性基团,碳—碳双键密度太低,光固化膜交联点太少,硬度和附着力均较差。多羟基胺连硫杂蒽酮光引发剂能均匀分散于树脂自乳化体系和接枝树脂干膜中,不出现色斑,光固化膜肖氏硬度一般高于以Irgacure 2959为光引发剂的光固化膜,光泽度及耐丁酮溶剂性能均有所提高,不会诱导铁基生锈,钛白着色对光固化结果几乎没有影响。本论文所合成的多羟基胺连硫杂蒽酮光引发剂IV〓与IV〓为浅黄色,对光固化涂层的颜色干扰较小,为配制钛白着色光固化水性涂料提供了新的光引发剂。水溶性太强的WB 4759在干膜中易聚结析出,且对所附着的铁基有诱导锈蚀作用。

The second chapterintroduces the characters of glass curtain walls. The third chapter goes along astudy on the daylight glare inside the glass curtain wall buildings. The fourthchapter goes along a systemic study on the reflection glare from glass curtainwalls and introduces design and development of the reflection glare calculation module. The fifth chapter uses some building simulation tools tocalculate and evaluate the heat pollution and light pollution. The sixth chaptersummarizes and prospects.

论文共分为六章,第一章介绍了天然光环境及天然采光的意义;第二章介绍了玻璃幕墙的特点及其室内外天然光环境的特点;第三章针对玻璃幕墙建筑室内昼光眩光进行了研究,并利用软件进行了计算和分析;第四章对玻璃幕墙反射光污染进行了系统的研究,并介绍了反射光计算模块的设计与开发;第五章介绍了利用计算机模拟的方法对玻璃幕墙光污染和热污染的计算与评价,并得出了相应结论;第六章进行了总结和展望。

Based on the theory of heat conduction, the heater thermal field was calculated to determine the most efficient position of heater. And the parameters of heater and asymmetric Y branch were decided using FD-BPM method. After the design and optimization, the polarization dependence and wavelength dependence of the attenuator were researched.

先根据前文介绍的热传导理论模拟了用于可调衰减器的电极的热场分布,设计了电极的最优位置,然后利用马卡蒂里近似解法求解掩埋条形波导的单模条件,并计算了波导的宽度和厚度,设计了非对称Y分支型的光衰减器的Y分支结构,电极参数,完成整个设计过程,最后,模拟了光衰减器的偏振相关性和波长相关性,从而也得到了一个聚合物可调光衰减器的设计优化方法。

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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。

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。

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。