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The influence of polyethylene glycol on the aluminum hydroxide product in the process of ion-exchange membrane electrolysis was studied.

研究在铝酸钠溶液离子膜电解制备超细氢氧化铝过程中,添加剂聚乙二醇对产品的影响。

The thermal inactivation of penicillin amidase entrapped in AOT/isooctane reversed micelles was studied in detail.

研究了青霉素酰化酶在二-(2-乙基己基)琥珀酸双酯磺酸钠/异辛烷反胶团中的稳定特性。

Main production sulfide Green, Chloropicrin, picric acid, dinitro-chlorobenzene, potassium chlorate, high sodium chlorate, ammonium perchlorate, such as more than 30 kinds of products, exports of Asia and Europe more than 30 countries and regions. In 2000 through ISO9002 quality system certification, production scale, cost-effective, enterprise management, technological advancement, product quality, environmental protection are rising, has very broad prospects for development.

主要生产硫化青、氯化苦、苦味酸、二硝基氯化苯、氯酸钾、高氯酸钠、高氯酸铵等30多种产品,出口亚欧30多个国家和地区。2000年通过ISO9002质量体系认证,生产规模、经济效益、企业管理、技术进步、产品质量、环境保护均不断提升,具有十分广阔的发展前景。

Preparation of quick-dissolving carboxymethyl cellulose by crosslinking agent sodium borate ,condensation polymer dialdehydomethane and CMC is studied.

利用交联剂硼酸钠和丙二醛缩聚剂与羧甲基纤维素反应,生成速溶型CMC ,既解决了CMC溶解缓慢问题,又提高了CMC的粘

Dialdehyde cellulosewas produced by oxidizing neighbor hydroxyl of microbial cellulose with sodium periodate in heterogeneous system in this paper.

本文采用细菌纤维素为原料,高碘酸钠为氧化剂,在不同氧化条件下制备了不同氧化程度的二醛纤维素。

NaHCO3 (0.1 M) buffered 0.1 M sodium dithionite (Na2S2O4) at 40 °C was used to release soluble reactive PBD from FeIII oxyhydroxides under low redox conditions.

碳酸氢钠( 0.1米)缓冲0.1米的连二亚硫酸钠( Na2S2O4 )在40 ° C被用来释放可溶性反应PBD从FeIII oxyhydroxides低氧化还原条件。

Nutrition information Serving size:38.8g in 20ml of water Serves per can:23 Prepared food Avg Qty Per Serve % Daily intake per serve Avg qty per 100ml Major nutrients Energy Protein Carbohydrate -sugars -lactose -dextrose -sucrose -unavailable CHO Dietary Fibre -FOS Sodium Fats Fats-total -Saturated -Trans -Monounsaturated -Polyunsaturated -Total Omega3 -ALAa -VLC Omega3 -DHAb -EPAct -DPAdt Vitamins and minerals Vitamin A Vitamin D3 Vitamin E Thiamin (B1) Riboflavin (B2) Vitamin B6 Vitamin B12# Niacin (B3) Folic Acid Vitamin C Calcium Iodine Iron Phosphorous Magnesium Zinc

营养信息服务大小: 38.8克在二〇毫升水每次可以提供: 23 准备食物数量平均每个服务%,每日摄入量每服务平均数量每100毫升主要营养素能源蛋白质碳水化合物-糖乳糖一葡萄糖蔗糖,无法町膳食纤维- fos基因钠油脂油脂总饱和反,单,多总计Omega3 ,阿拉,可变长编码Omega3 - DHAb - EPAct - DPAdt 维生素和矿物质维生素A 维生素D3 维生素E 硫胺素( B1 )核黄素(素B2 )维生素B6 维生素B12 #烟酸( B3的)叶酸维生素C钙碘铁磷镁锌

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。

The process comprises the subsequent steps a through e: a reacting phthalic anhydride with fluorobenzene or a derivative thereof in appropriate reaction conditions; b over reducing the product obtained in step a at the ketone moiety; c reducing the product obtained in step b with sodium dihydro-bis (2- 15 methoxyethoxy) aluminate to the corresponding alcohol ; d chlorinat ing the alcohol obtained in step c ; e inserting CO into the product obtained in step d through an appropriate Pd-containing catalytic system.

该方法包括以下步骤a~e:a使邻苯二甲酸酐与氟苯或者其衍生物在适当的反应条件中反应;b完全还原步骤a中获得的产品的酮部分;c用二氢-二(2-甲氧基乙氧基)铝酸钠将步骤b中获得的产品还原成相应的醇;d对步骤c中获得的醇进行氯化;e通过适当的含Pd的催化剂体系,将CO插入到步骤d中获得的产品中。

To investigate the relationship between the tolerance to dehydration and superoxide dismutases in Pachira macrocarpa, fresh mature seeds were pretreated with a 12 h DDTC and subjected to 3~20 h desiccation silica gel at 25℃. The results showed that 20 mmolL^(-1) diethyldithiocarbamate treatment inhibited efficiently SOD and SOD activity in seeds and reduced tolerance of seeds to water deficit, which was evidenced with increases in electrical conductivities and malondialchehy of the seeds, and a rapid decrease of the seed vigor during desiccation.

以探讨马拉巴栗种子脱水耐性与其超氧化物歧化酶之间的关联为目的,选用新鲜的成熟马拉巴栗种子,用二乙基二硫代氨基甲酸钠(DDTC, SOD抑制剂)进行12h预处理后,在25℃下进行3~20h的硅胶快速脱水处理,观察种子的萌发率和生理指标的变化。

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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。

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