碱的

A process for preparing alkylene glycols including reacting an alkylene oxide with water in the presence of a combination of additives and an anion exchange resin, wherein the combination of additives comprises carbon dioxide and an organic or inorganic base provided in an amount sufficient to maintain a pH of the reaction mixture between about 5.0 and 9.0, with the proviso that, when the base is bicarbonate or carbonate, then the anion exchange resin is a trimethyl benzyl ammonium anion exchange resin.

制备亚烷基二醇的方法，包括让烯化氧与水在添加剂组合和阴离子交换树脂存在下进行反应，其中添加剂组合包括二氧化碳和以足以保持反应混合物的pH值在约5.0和9.0之间的量提供的有机或无机碱，前提条件是当碱是碳酸氢盐或碳酸盐时，阴离子交换树脂是三甲基苄基铵阴离子交换树脂。

Electron transfer reaction between the radical cations of purine nucleotides and some aromatic amino acids was studied by use of pulse radiolytic techniques. Time-resolved spectroscopic evidence revealed that the one-electron-oxidized radicals of dAMP and dGMP can be efficiently repaired by tyrosine and tryptophan.

鉴于在DNA光敏损伤过程中主要生成嘌呤碱基阳离子自由基，利用脉冲辐解技术研究了嘌呤碱基阳离子自由基与部分芳香氨基酸的相互作用，获得了酪氨酸和色氨酸对单电子氧化的dAMP和dGMP经快速电子转移修复的瞬态吸收光谱证据。

The company's main product is glass fiber and glass fiber reinforced plastic products, brands as a "ding" brand, glass fiber products are: enhance the grinding wheel mesh, self-adhesive tape, E-glass fiber cloth, alkali-resistant mesh, high silica cloth , Plaid, geogrid, decorative±, grid yarn; glass steel products are: grating, flange, tank, military antenna, flowerpots, tapered poles, mast, communication pole, pultrusion type materials, etc., forming a wheel enhance the series, building enhanced series, decoration series, the road to enhance series, special fiber series, filtration and insulation series mainly textile-type fiberglass products system, with a modified glass fiber technology, weaving technology, surface treatment technology at the core technologies with independent intellectual property rights system.

公司主营产品为玻璃纤维及玻璃钢制品，品牌为&鼎&牌，玻璃纤维制品有：增强砂轮网布、自粘胶带、无碱玻璃纤维布、耐碱网布、高硅氧布、方格布、土工格栅、装饰壁布、网格纱；玻璃钢制品有：格栅、法兰、贮罐、军用天线、花盆、锥型灯杆、线杆、通讯杆、拉挤型材等，形成了砂轮增强系列、建筑增强系列、装饰装修系列、道路增强系列、特种纤维系列、过滤与保温系列为主的纺织型玻纤制品体系，拥有以玻纤改性技术、织造技术、表面处理技术为核心的具有自主知识产权的技术体系。

The homogeneous catalysts for selective O-methylation of phenols with DMC are generally organic bases, such as tertiary amines or phosphines, tetrabutylammonium halide and Schiff bases.

酚与DMC甲基化反应的均相催化剂一般选择叔胺、叔膦、季铵盐及Schiff碱等有机碱，多相催化剂为碱金属碳酸盐、沸石、氧化铝及附载有金属盐的氧化铝和煅烧的Mg-Al水滑石。

Outer boxes Genes of interest are shown around the ring as operons for sulfate reduction, carbon fixation via acetyl-CoA synthesis pathway, and nitrogen fixation.

在单股DNA链中，碱基之间的相互作用是一个堆叠在另一个之上，而且在双螺旋中，两个互补单股的碱基对之间的氢键发挥了关键作用。

The results showed that as compared with the equal chemical fertilizer (T2), tobacco special fertilizer could improve the physical character of soil and ensure growth steadily to form perfect plant figure.

结果表明：与等氮磷钾养分对照(T2)比较，烟草专用肥处理(T4)可以改善土壤的物理性状；有利于烟株稳健生长，形成理想的株型；降低烟叶的蛋白质含量、减小两糖差值，糖碱比和氮碱比更加适宜，改善烟叶品质；但是烟叶产量、中上等烟叶产量与等氮磷钾养分对照相似。

For long time ,the designers of recovery boiler usually do not set up inside air preheater for the soda recovery boiler in which reed pulp,bamboo pulp and wood pulp black liquor is burnt due to ash accumulation,the hot air for combustion is supplied by steam air heater outside the boiler.

长期以来，在碱回收炉的炉型设计中，由于积灰的原因，对于燃烧苇浆、竹浆、木浆黑液的碱炉通常不设置炉内空气预热器，燃烧所需热风由炉外蒸汽空气加热器供给。

Research on Using Rice Hull to Extract Arabinoxylan s;2. Study on the Inheritance and Variation of Arabinoxylan s in Hard Wheat;3. In order to enhance the extraction yield of arabinoxylan from wheat bran,the effect of temperature,time,the concentrations of sodium hydroxide and hydrogen peroxide and shaking speed on yield of arabinoxylan were investigated.

为提高小麦麸皮中阿拉伯木聚糖的得率，本研究在考察了温度、时间、碱液与H2O2浓度和振荡速度等单因素对阿拉伯木聚糖得率影响的基础上，采用二次回归正交旋转组合设计对阿拉伯木聚糖的碱提工艺条件进行了优化并建立数学模型。

Many research achievement have been acquired mainly on the studies of activator, durability and setting time of alkali-activated slag cement and concrete.

碱矿渣水泥是用碱金属的碱性化合物激发矿渣形成的胶凝材料，以之为基础的碱矿渣混凝土具有高强、快硬、低水化热、耐久等优良性能。

In addition, in-situ infrared spectroscopy provides the information about the nature of the surface acid and base sites. For example, Lewis acid and base sites on metal oxides are coordinatively unsaturated metal cations and oxygen anions, respectively, while Brinsted acid and base sites are the hydroxyl groups on the surface.

结合原位红外光谱，还能够详细地了解表面酸碱中心的性质：金属氧化物表面的Lewis酸中心和碱中心分别是表面配位不饱和的金属离子和氧负离子， Brinsted酸中心和碱中心则是金属氧化物表面的羟基。

Recall that, in the Kolmogorov axiomatization, measurable sets are the sets which have a probability or, in other words, the sets corresponding to yes/no questions that have a probabilistic answer.

延期开工的Kolmogorov宣布要衡量所有套职能有限许多坐标限制在于衡量子寅。换句话说，如果是/否的问题回答f可看的价值观念在许多最有限坐标，然后它有一个概率的答案。

The experimental results showed that the algorithm can filter singular points and remain fixity of the target edge.

实验表明：基于模糊理论的图像智能滤波方法比常规图像滤波方法运算量小，它既能去除奇异点，又能保持图像中目标的边缘不变性，具有很好的滤波效果。