反应萃取法提纯赖氨酸的萃取平衡

在不同赖氨酸初始浓度和不同二（2－乙基已基）磷酸酯浓度下，测定用二（2－乙基已基）磷酸酯萃取分离赖氨酸的分配系数。提出赖氨酸正－价阳离子和正二价阳离子与二（2－乙基已基）磷酸酯萃取反应的机理，建立萃取达到平衡时分配系数的计算模型，得到萃取反应平衡常数。计算模型对实验数据进行处理的结果表明，实验结果与所建模型吻合较好。同时，说明赖氨酸不仅有正－价的阳离子参加反应，还有正二价的阳离子参加反应。     

官能性引发剂法单端基反应性聚二甲基硅氧烷的合成与鉴定

合成了p-(二甲基、羟基)甲硅烷基-α-苯基苯乙烯的锂盐(Ⅰ)。(Ⅰ)可作为环氧烷类单体的官能性阴离子聚合的引发剂。用(Ⅰ)引发六甲基环三硅氧烷聚合得到的聚二甲基硅氧烷的一端基上定量地带有1,1-二苯基乙烯基反应基。该端基反应性聚二甲基硅氧烷可用于与活性聚合物碳阴离子的偶联反应。     

超滤在染料中的应用——液状活性染料研究

本文报导了用超滤法除去染料中的盐份是可行的,初步摸索了制备液状-K 型活性染料的最佳条件.     

基于瞬时无功功率理论的SVC信号检测新方法

静止无功补偿装置（ＳＶＣ）信号检测的实时性与准确性对其补偿效果影响甚大，以往使用的检测方法在这些方面存在缺陷，文中介绍了一种基于瞬时无无功率理论的ＳＶＣ装置信号检测新方法，详细讨论了新检测方法的理论依据，检测公式和实现方法，分析了它与传统方法比较所具有的优点。最后给出了实验结果。     

聚变堆第一壁材料溅射的计算机模拟

用基于两体碰撞近似的蒙特卡罗模拟方法，研究聚变a粒子对反应堆第一壁材料（C，W，B ,SiC及不锈钢Fe073Cr0.18Ni0.09)的溅员伤，着重讨论上述材料溅射产额随入射能量的变化及家它与实验结果的比较，并且给出具有一定能量分布的α粒子 轰击第一壁时，各种材料的溅产额，溅射粒子能谱，角分布和源深度分布，以及β粒子入射角对溅产额的影响，计算结果表明，在相同入射条件下，不锈钢的溅 额较大，其余几种材料的溅射产额几乎相等。     

反应性抗菌整理剂的合成及其抗菌性能研究

本文以2,4,4′-三氯-2′-羟基二苯醚以及其磺化产物SDP为抗菌有效组分,合成了含一氯均三嗪活性基的反应性抗菌整理剂;并作了波谱分析(UV,IR,MS)和元素分析。这类抗菌整理剂可方便地用于纤维素纤维的抗菌整理,且整理后的织物具有优异的抗菌性能和耐洗坚牢度。例如:按AATCC-100法,经反应性抗菌整理剂2RSDP整理后的织物对金黄色葡萄球菌、大肠杆菌和绿脓杆菌的减菌率分别达到98.5％,98.86％和96.67％;经60℃、100次以上皂洗其减菌率仍保持在90％左右。因而,具有实际应用、开发的价值。同时,本文也初步探讨了所合成的反应性抗菌整理剂的结构与抗菌性能关系。     

顺丁烯二酸酐回收新工艺（Ⅰ）—热分解反应精馏过程研究

提出以正丁醇为溶剂回收顺酐的新工艺。在吸收塔中用丁醇吸收反应气体中的顺酐生成顺丁烯二醇单丁酯，然后在反应精馏塔中将单酯分解为顺酐和丁醇。研究了反应精馏过程操作压力、回流比、塔身温度分布以及进料组成、进料温度、进料中醇酐摩尔比等对单热分解反应精馏的影响。     

Studies on Wear and corrosion resistances of carbon nitride thin films on Ti alloy

0　IntroductionArtificialarthrosiseshavebeenwidelyusedintheoperatorsclinicalsurgeriesforthepatientswhosearthrosiseswerese riouslyseverelydamaged.Butmostofartificialarthrosisescanon lybeusedforabouttenyearslongduetotheseriousabrasion .Forthisreason ,theimprovementofthelongevityofartificialarthrosisbecomesanimportantsubjectofstudy .TheartificialarthrosisesbeingmadeupofTialloyTC4(Ti 6Al 4V)andthepolythenewithultrahighmolecularweighthavegreatpotentialitiesonim provinglongevitybecauseTC4canreac…     

‘Classical’ and ‘new’ diabetogens—comparison of their effects on isolated rat pancreatic islets in vitro

This study compares functional and morphological alterations caused by application of alloxan, streptozotocin, xanthine oxidase/hypoxanthine (generation of reactive oxygen species), or S-nitroso-N-acetyl-D,L-penicillamine (SNAP, liberation of nitric oxide) to isolated rat pancreatic islets in vitro. In perifusion experiments, membrane leakage—detected by non-stimulated insulin release—was found after application of all drugs, but showed a substance-specific time pattern. Twenty-four hours after application of the classical diabetogens (alloxan or streptozotocin), potassium chloride- and glucose-stimulated insulin secretion were markedly reduced, while a persistent reduction was observed neither after exposure to xanthine oxidase/hypoxanthine, nor to SNAP. Morphological analysis of the islets revealed that nearly all β-cells were destroyed following alloxan or streptozotocin treatment, while the majority of β-cells were configured regularly after application of xanthine oxidase/hypoxanthine or SNAP. Necrotic cells found after xanthine oxidase/hypoxanthine usually differed in morphology from those observed after application of the classical diabetogens. While the former cells were characterised by swollen nuclei, the latter had shrunken nuclei with irregular condensed chromatin. Apoptosis was found only following nitric oxide exposure. Due to these differences, it seems unlikely that alloxan, streptozotocin, xanthine oxidase/hypoxanthine, and nitric oxide have a common major feature in their toxic action. Received 16 September 1999; received after revision 15 November 1999; accepted 26 November 1999     

中频磁控溅射法制备氧化锌钇薄膜及其性能研究(英文)

利用中频磁控溅射法,溅射氧化锌钇(ZYO)陶瓷靶材,在玻璃基底上制备ZYO透明导电薄膜。研究了氧化钇掺杂量和基底温度对薄膜的结构、电学性能和光学性能的影响。结果表明,ZYO薄膜为钎锌矿型结构,呈c轴择优取向,平均可见光透过率(400～800nm)达到80%以上。制备的ZYO薄膜具有的最低电阻率为1.18×10-3Ωcm。