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The effects of solution\'s pH value, mol ratio between phenyl aldehyde and L-Arginine, concentrations of sodium chloride, ammonia chloride andL-Lystine, initial concentration of L-Arginine on precipitation rate of a -tolylene arginine were investigated, the results indicated that phenyl aldehyde precipitation method\'s appropriate pH value was higher than 11, suitable mol ratio between phenyl aldehyde and L-Arginine was 1.25, initial concentration of L-Arginine was must higher than 15g/L, sodium chloride had little effect on precipitation rate, on the contrary, ammonia chloride and L-Lystine had great effect on it, both of them must be eliminated; At the same time, adsorption isotherm at 25 C of L-Lystine on anion exchange resin A was measured, the result showed that the maximal equilibrium adsorbance was 30mg/g, the influences of solution\'s pH value, temperature, concentration of chloride ion on adsorption of L-Lystine by anion exchange resin A were also studied, the results indicated that appropriate operational pH value was 0.5 0.2, the effect of temperature on adsorption ratio was little, process could be operated at room temperature, the concentration of chloride ion must be eliminated.

考察了溶液pH值、苯甲醛与L-精氨酸摩尔比、氯化钠与氯化铵浓度、L-赖氨酸浓度、L-精氨酸初始浓度对苯甲醛沉淀L-精氨酸的影响，结果表明，沉淀反应的适宜pH值大于11，苯甲醛与L-精氨酸的适宜摩尔比为1.25，(来源：Aa6BC论文网www.abclunwen.com)L-精氨酸适宜的初始浓度在15g/L以上，氯化钠的存在对沉淀率基本上没有影响，而氯化铵和L-赖氨酸的存在使沉淀率下降；同时测定了25℃时阴离子交换树脂A吸附L-赖氨酸的吸附等温线，表明其最大平衡吸附量为30mg/g，考察了溶液pH值、温度、氯离子浓度对阴离子交换树脂A吸附脱除L-赖氨酸的影响，结果显示从L-精氨酸和L-赖氨酸混合液中吸附分离出L-赖氨酸的适宜pH值为10.5±0.2，温度对L-赖氨酸吸附率影响不大，吸附过程可在室温下进行，氯离子的存在使L-赖氨酸的吸附率降低。

The invention relates to a pipeline polyurea outer anticorrosive coating and the making method thereof, making heated prepolymerization reaction on dibenzo-methane diisocyanate, carbodiimide diisocyanate, polyether binary alcohol and polyether trihydric alcohol to prepare prepolymer solution A, and making end amino polyethylene oxide ether, dimethyl sulfur-based toluene diamine, diethyl diamine, iso-propyl titanate solution, polyacrylate, carbon black, titanium dioxide and lightweight calcium carbonate into solution B, and as using, respectively heating the solutions A and B to 65 deg.C and then mixing them, then quickly spraying and curing to form a coat.

本发明涉及一种管道用聚脲外防腐涂料及制造方法，由二苯基甲烷二异氰酸酯、碳化二亚胺化二异氰酸酯、聚醚二元醇和聚醚三元醇通过加热预聚反应制成预聚物的A液、由端氨基聚氧化乙烯醚、二甲硫基甲苯二胺、二乙基甲苯二胺、钛酸异丙酯溶液、聚丙烯酸酯溶液、碳黑、钛白粉和轻质碳酸钙配制而成的B液组成，使用时将A液和B液分别加热至65℃后混合，然后快速喷涂固化形成涂层。

At present,the total capacity of trimellitic anhydride in the world is about 230,000t/a, with output of 165,000 t/a and total consumption about

目前世界偏苯三酸酐的总生产能力约为 2 3 0万t/a ，产量约为 16 5万t/a ，消费量约为 16 0万t/a。

A isotherm of a monolayer at air-water interface for a quaternary ammonium salt type trimeric surfactant (shortly called 12-2-12-2-12) was investigated by the Langmuir balance technology. The surface tension at collapse pressure,γ, and the molecular limited area, A, were determined and compared with the surface tension of the surfactant solution at CMC concentration,γ.

利用Langmuir膜天平研究了季铵盐三聚表面活性剂12-2-12-2-12在空气－水界面单分子膜的表面压－分子面积等温线，得到它的崩溃压对应的表面张力γ(下标 collapse)和分子极限面积A。

The inner reorganization energy and the exothermicity of the reaction are then determined. Closed shell HF SCF calculations have been carried out for the systems Tryptophy1-Tyrosine and Tyrosyl-Tryptophan for different values of R, and the Koopmans^,theorem is invoked to estimate the energy level splitting A.From the obtained A~m~i~n, the values of electron transfer matrix element V~D~A are determined to be 0.96kJ. mol^-^1 and 0.87kJ.mol^-^1 for Tryptophyl-Tyrosine and Tyrosyl- Tryptophan, respectively.

对色氨酰酪氨酸和酪氨酰色氨酸体系进行闭壳层HF自洽场计算，按Koopmans定理计算体系分子轨道分裂能值A，在R约为0处发现了A的极小值，从而获得色氨酰酪氨酸及酪氨酰色氨酸体系分子内电子转移的电子转移矩阵元V~D~A分别为0.96kJ.mol^-^1和0.87kJ.mol^-^1。

Athena's name is possibly of Lydian origin.It may be a compound word derived in part from Tyrrhenian "ati", meaning "mother" and the hame of the Hurrian Goddess "Hannahannah" shortened in various places to "Ana". In Mycenaean Greek, She possibly appears in a single inscription in the Linear B tablets: A-ta-na-po-ti-ni-ja /Athana potniya/ appears on a text from the Late Minoan II-era "Room of the Chariot Tablets" in Knossos, the earliest Linear B archive anywhere.

雅典娜这个名字可能起源于利底亚，它是由第勒尼安语中的&ati&和胡里安人的女神&Hannahannah&名字的简化&Ana&拼合而成，在迈锡尼文明时期，起源于米诺斯王朝后期，位于科诺索斯的&战车铭文之室&的一则铭文中，雅典娜也许是以&A-ta-na-po-ti-ni-ja /Athana potniya&这个名字出现的。

Results L* in pat of opaque and body become decrease and a*,b* become increase generally with the increase of each group of color guide stage,then a*、b* of incisor translucent and cervical increase tendency unapparently.

结果 随着A、B、C、D各组比色板色阶的增大，不透明瓷、牙本质瓷的L*值呈递减趋势，a*、b*值呈递增趋势，但是颈部瓷、透明瓷的a*、b*值的递增趋势变化不明显。

A type-A materialist denies that there is the relevant sort of epistemic gap. A type-B materialist accepts that there is an unclosable epistemic gap, but denies that there is an ontological gap. And a type-C materialist accepts that there is a deep epistemic gap, but holds that it will eventually be closed.

我所谓的A类物质主义者拒绝相应类型的认识上的鸿沟。B类物质主义者承认认识上的鸿沟是不可闭合的，但拒绝有一个存有上的鸿沟。C类物质主义者接受有深刻的认识上的鸿沟，但认为这最终是可闭合的。

This implies that DNA methylation of promoter exon 1_7 may not underly the mechanism of GR up-regulation in GLP-1 -programmed rats.5 Hippocampal expression of GLP-1R and NGFI-A mRNAHippocampal GLP-1R (p =.009) and NGFI-A (p =.001) gene mRNA expression were significantly up-regulated in GP group as compared to VP group.Taken together, neonatal intramuscular injection of plasmid DNA encoding GLP-1 affects behavior and hippocampal GR expression in adolescent rats.

提示GR exon 1_7启动子区域DNA甲基化可能不参与GLP-1导致的GR转录上调。6海马GLP-1R和NGFI-A mRNA表达GP组大鼠GLP-lR(P=。009)和NGFI-A(P=。001)表达均显著高于VP组，表明肌肉注射GLP-1可能通过作用于其海马受体提高NGFI-A表达，进而调控GR表达。

In chapter two and three, for the low-frequency electromagnetic problems in multi-media, an alternate A-φ method (in Chapter 2) and a fractional-step A-φ method (in Chapter 3) based on ungauged vector potentials are developed respectively.

第二、三两章关于多媒质中的低频电磁问题发展了基于非规范势的交替A-φ方法和分数步A-φ方法，并在一定条件下对这两类方法的全离散有限元逼近误差进行了理论上的分析和估计； 3。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。