查询词典 reaction formation

Product formation lined face, smooth and strong, with the traditional steel-lined tank plastic board, glass-steel-lined steel tank, it has a better corrosion-resistant, non-leaking, non-peeling, wear-resistant, long life, etc., corrosive liquid is ideal for shipping container storage and transportation, can be applied to 100 ℃ the following motor transport tanks, low pressure tanks, vacuum tanks, reaction vessel, the exchange column, pickling tank, trough, such as electroplating.

产品内衬面平整、光滑、坚固，与传统的钢衬塑料板储槽、钢衬玻璃钢贮槽相比，具有更良好的耐腐蚀、不渗漏、不剥离、耐磨损、寿命长等优点，是装运腐蚀液体的理想储运容器，可应用于100℃以下的汽车运输槽罐、低压罐、真空罐、反应釜、交换柱、酸洗槽、电镀槽等。

Objective: To probe into the role of periostin in the formation of scars and investigate its reaction to hydrocortisone.

目的：通过检测periostin在人过度增生性瘢痕成纤维细胞中的表达及其对氢化可的松作用的反应，探讨periostin在瘢痕形成中的作用。

The following main results are obtained: The TiO_2 photocatalyst with small crystallite size, high surface area, narrow and uniform pore size distribution, and microporous frameworks could be prepared out by applying MW radiation in the preparation process. The microwave-induced fluorescence technique verified for the first time that microwave enhanced the formation rate of hydroxyl radical, leading to the increase in the photocatalytic efficiency. Compared with the conventional catalyst, TiO_2 prepared by MW dielectric heating owns a higher UV absorption ability, and its optical absorption edge and photovoltaic response are shifted toward the short wavelength region, resulting in increase of photooxidation efficiency. The photocatalytic conversion and the mineralization ratio of acetaldehyde are increased respectively by 30% and 40% over the TiO2 prepared by MW radiation when compared to the TiO2 prepared by the conventional heating. For the MW-assisted photocatalytic reaction over the MW-prepared TiO2, production of hydroxyl radicals is enhanced by 22.5%, and the photocatalytic conversion is accordingly increased by 20%. Similarlly, applying MW also increased the photocatalytic conversion and the mineralization ratio of acetaldehyde over TiO2/Al2O3 sample.

论文得到如下主要结果和结论：(1)微波介电加热TiO_2 溶胶可得到晶粒度小、光催化活性高、比表面积大和孔径分布窄而均一，且微孔发达的TiO_2光催化剂；在溶胶干燥处理过程中微波可使催化剂表面缺陷增加，进而导致光催化反应过程有更多的活性羟基自由基产生；(2)微波制备能显著增强TiO_2 样品的紫外光吸收率，并使其光吸收和光伏响应阈值发生蓝移，从而提高TiO_2的氧化还原能力；(3)与常规加热法所制TiO_2比较，微波法制备的TiO_2对乙醛的光催化降解转化率提高30%，CO_2生成率提高40%以上；(4)与未加微波辐射时相比，发现在光催化反应过程中施加微波，TiO_2 的羟基自由基生成速率提高了22.5%，相应CH_3CHO 光催化降解转化率提高了20%；对Al_2O_3/TiO_2催化剂，CH_3CHO 光催化降解转化率甚至提高了33%，同时CO_2 的生成率也都大幅度提高；(5)微波辐射可改变光催化降解乙醛的产物分布，推断施加微波时乙醛光催化降解按照羟基自由基引发的链式反应机理进行，微波&非热效应&起主要作用。

Thermal reaction of N-methyl-2-pyrrolidinone and carbon disulfide (CS2) under elevated pressure leads to the formation of N-methylprrolidine-2-thione.

N-甲基吡咯烷酮和二硫化碳(CS2)在加压下发生热反应生成N-甲基吡咯烷-2-硫酮。

Diels-Alder reaction has been one of the cornerstone reactions in organic chemistry for the construction of six-membered rings and the formation of carbon-carbon binds.

Diels-Alder 反应是有机化学中建构六员环和碳碳键生成最为重要的反应之一。

Diels-Alder reaction has been one of the cornerstone reactions in organicchemistry for the construction of six-membered rings and the formation ofcarbon-carbon binds.

Diels-Alder 反应是有机化学中建构六员环和碳碳键生成最为重要的反应之一。

The typical size of this structure is 10-15mm in length and 80-120μm in diameter and 20-25μm in wall thickness. Transmission X-ray Laue photographs of the samples revealed its single crystal nature. Studies indicated that the grown temperature and pH value of reaction system were the critical factors in the formation for this tubular structure.

典型尺寸：长为10—15mm，内径为80—120μm，壁厚为20—25μm；透射X射线劳厄照相显示了所生长的Ag〓Se晶体具有单晶特性；研究表明生长温度和体系的pH值是决定管状结构形成的关键因素。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。