加碱

Refining monomer and preparating plexiglas sheet having yellow color were researched. The two projects were adopted, one was to add fluorescence adding white acidifier OB and PF, the other was to process alkali to wash and add additive before rectifying.

对工业上精制单体制取有机玻璃板颜色发黄问题进行了研究，采用在预聚体中加荧光增白剂OB和PF与裂解单体进行精馏前碱洗及加添加剂两个方案。

At the same dosage, alkaline reduction ability of sodium hydroxide is better than calcium hydroxide.

结果表明，甲醛的强碱还原转化主要取决于碱投加量和反应温度，在同样投加量下，氢氧化钠比氢氧化钙对甲醛还原能力稍强。

Experimental process: jing and 3- methyl -2- methyl ethyl ketonesynthesizes by the benzene zong; Again the glacial acetic acidcatalysis produces 2, 3, 3 - trimethyl - 3H - yinduo; Again has thealkylate response production yinduo iodide after the methyl iodide;The iodide takes off molecular HI under NaOH to become freejier thealkali; Adds 5 - nitryls salicylic aldehydes in the ethyl alcohol forthe solvent under if to respond finally produces 6 '- the nitryl yinduolin spiral benzene and pinan; Through the infrared spectrum andthe ultimate analysis irrevocably proved its structure, and studiedthe annulus with to open the annulus the light to send changes colorthe performance, explained in different solvent medium ultravioletabsorption spectrometry solvent effect, and the comparisondiscoloration the response speed number difference, finally mixed itadds to the methyl methacrylate, the peroxidation benzoin formyl in the plexiglass, tested 6 '- the nitryl yinduolin spiralbenzene and pinan in the glass fatigue resistance, thethermostability.

实验过程：由苯肼和3-甲基-2-丁酮合成腙；再冰醋酸催化生成2 ，3 ，3—三甲基—3H—吲哚；再经过碘甲烷发生烷基化反应生成吲哚碘化物；碘化物在NaOH下脱去一分子HI成为费歇尔碱；在乙醇为溶剂下加5－硝基水杨醛与其反应最后生成6'—硝基吲哚啉螺苯并吡喃；通过红外光谱和元素分析确证其结构，并研究了环体与开环体的光致变色性能，解释了在不同溶剂介质中紫外吸收光谱的溶剂效应，并比较褪色反应速率数的差异，最后将其掺加到甲基丙烯酸甲酯，过氧化二苯甲酰有机玻璃中，测试6'—硝基吲哚啉螺苯并吡喃在玻璃中的抗疲劳性、热稳定性。

The stress corrosion cracking experiments were conducted using SUS 304 L stainless steel WOL samples in 3.0% NaOH solution by mass fraction at 280℃in order to study the anti-stress corrosion performance of PD-201 hydrogenator made of SUS 304 L stainless steel of purified terephthalic acidplant during alkaline washing without stopping production.

通过用SUS304L不锈钢制作的楔形张开加载预裂纹试样，在280℃、质量分数为3.0%的NaOH溶液的条件下进行应力腐蚀试验，以模拟对苯二甲酸装置的加氢反应器PD-201不停车碱洗工作过程中SUS304L不锈钢在该介质环境下的抗应力腐蚀性能。

An alkaloid,C46H58N4O9,obtained from the Madagascar periwinkle and used as an antineoplastic drug.

长春碱从马达加斯加的长春花中得的一种生物碱C46H58N4O9，用作抑制肿瘤的药物

To prevent the damage of concrete containing reactive dolomitic rocks, high volume of admixtures must be incorporated into low alkali cement concrete.

为防止碱-碳酸盐反应膨胀破坏，必须在采用低碱硅酸盐水泥的同时掺加大量的混合材。

Li Zhongren,Shen Meihong,Mu Yanyun,et al.Nanjing University of TCM,Jiangsu210029. Objective To explore into the probable mechanism of Alzheimer's diseaseby the acupuncture treatment combined with DGSYS of TCM.Methods Three kinds of model rats with dysmnesia which were made by injected into drug of scopolamine or NaNo 2 in the abdomen separately and injured at the hippocampal CA 1 in brian by drug of quinolinic acid treated by single acupuncture or acupuncture combined with DGSYS of TCM or DGSYS of TCM were observed separately,to compare different influence on dysfunctions of acuquisition and consoli-dation of memory induced by drugs and injure with nimodipineor the normal rats.

目的 探索临床针刺加当归芍药散治疗阿尔采默氏症的可能机理方法通过腹腔注射药物东莨菪碱或亚硝酸钠，或者用奎宁酸损毁脑海马CA 1 区诱发大鼠发生记忆力障碍，造成不同类型的大鼠&痴呆&模型，对照性观察针刺、针刺加DGSYS、DGSYS及NM对记忆障碍功能的影响和与记忆相关实验指标参的变化。

The indexes were clinical situation and findings by screenage examination, such as DSA , CT and EEG. Results The treeatment of accompaning the permutating cerebrospinal

结果单用尼莫地平或罂粟碱治疗的19例病人，与采用尼莫地平或罂粟碱加脑脊液置换治疗的效果比较，差异有统计学意义，后者优于前者。

Chiral ligands mentioned above and their complexes with acetate copper were used as enantio-selective catalysts in asymmetric cyclopropanation reactions of diazoacetate and 1,1-diphenyl ethylene. Investigations indicate that all of them reveal certain optical-selective capability, but chiral C2-symmetric 2,6-bispyridine ligands show better catalytic capability than chiral asymmetric schifF-base ligands.

选择了2个手性2，6-吡啶双噁唑啉配体和6个手性不对称席夫碱配体与醋酸铜形成的配合物作为催化剂，对重氮乙酸乙酯与1，1-二苯乙烯不对称环加成进行催化反应，发现这8个催化剂对1，1-二苯乙烯的不对称环丙烷化反应都表现出了一定的光学活性诱导能力，手性2，6-吡啶双噁唑啉-铜类具有比手性Schiff碱-铜类更好的催化性能。

In higher plants,glycin betaine is synthesis from choline by choline monooxygenaseand betaine aldehyde dehydrogenase.

在高等植物中，甜菜碱是由胆碱经胆碱单加氧酶(choline monooxygenase，CMO)和甜菜碱醛脱氢酶(betainealdehyde dehydrogenase，BADH)催化生成的。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。