查询词典 acetyl

The results of functional magnetic resonance: N-acetyl-aspartic acid, choline and creatine in left temporal lobe and anterior part of frontal lobe decreased more obviously and regional cerebral blood volume and regional cerebral blood flow in these areas decreased,while average pass time and peak time of the contrast medium in these areas slightly increased as compared with those in the conitralateral areas; fraction of anisotropy values and the tracked fasciculus in left corticospinal tract decreased, and the connecting fibers between Broca and Wernicke areas also decreased as compared with those in the contralateral area.

功能磁共振检查结果：左侧颞叶和额叶前部的N-乙酰天门冬氨酸、胆碱、肌酸均较对侧明显降低，左侧颞极及额前部的局部脑血容量、局部脑血流量较对侧降低，对比剂平均通过时间、达峰时间较对侧轻度延长；左侧皮质脊髓束部分各向异性值及追踪到的纤维束较对侧减少，Broca区与Wernicke区之间的联系纤维与对侧相比减少。

The analysis of hydrogen-producing nature was presented through the point of catalysis of hydrogenase, the production of energy and its transportation. From author's view, the course of de-hydrogen from pyruvic acid to acetyl-CoA was the chief determinant for hydrogen producing. And the balance and adjustment of NADH/NAD〓 was just the necessary condition, not the foundation reason.

本文从产氢反应的催化体系、能量产生和传递等不同角度对产氢本质进行了系统的理论分析，认为产氢发酵的第一判定条件（即产氢发酵的充分必要条件）是丙酮酸-乙酰CoA脱氢过程；而NADH／NAD〓的平衡调节机制只是必要条件，不是产氢发酵的根本动力。

It was detected by DSC that the temperature of imide and crosslinking reaction are differentiated by the catalysis of acetyl acetone copper and rare earth.

DSC研究表明乙酰丙酮铜催化剂和稀土催化剂可以分开低聚物的亚胺化和交联反应温度。

Based on IR spectrum and HPLC chromatography, four polysacchharides had β-indican and characteristic absorbance of glucide without vitriol radical, galacturonic acid and acetyl.

红外光谱和其完全水解的高效液相色谱分析表明，4种多糖不含硫酸基团和乙酰基，具备β-糖苷键以及糖类特征吸收峰。

According to our method, we can quantify the total amount of isoflavone more rapid and conventiently without preparing all 12 kinds of standards.In this study, acetyl- and malonyl- glycosides were converted to 7-O-glycosides by reacting with 1M methanolic sodium methylate at 60℃ for 20 min. Then, the solution was neutralized with 2.5N HCL and extracted for further 30 min at 60℃. Aglycones and 7-O-glycosides were then analysed by HPLC.

根据本研究，此方法系使用1.0 M sodium methylate在60℃下与样品中之acetylglycoside、malonylglycoside反应20分钟，将其转化为7-O-glycoside，反应完成后以2.5N盐酸水溶液中和，调整溶液为80%甲醇溶液并在60℃下继续萃取30分钟然后进行HPLC分析；由於仅需要分析两种形式的大豆异黄酮化合物（aglycones及7-O-glycosides），因此可以有效地缩短分析时间至30分钟以内。

The knockout mice were more susceptible to cisplatin-induced nephrotoxicity, and this was blunted by N-acetyl-cysteine pretreatment.

人的基因敲除小鼠更容易顺铂所致肾毒性，这是减弱的N -乙酰半胱氨酸预处理。

Several transient compounds were synthesized by the homo- and heterogeneous reactions of reactive halogen compounds, In-situ ultraviolet photoelectron spectroscopy and photoionization mass spectroscopy as well as theoretical calculations were used to study their molecular structures, stability and molecular orbital properties, their electronic structures and geometric structures were obtained for the first time; Simultaneously, the electronic structure and thermal dissociation of acetyl peroxynitrate and trifluoroacetyl peroxynitrate which have great importance in the atmospheric chemistry were studied; The substituent effects of series of halopyridines and halothiophenes were studied by the ultraviolet photoelectron spectroscopy method for the first time. The atmospheric chemical reaction between peroxyacetyl radicals with IO radicals as well as the dissociation of the most stable isomer of CH3COIO3 were calculated by density functional theory, it was found that the CH3COOIO2 isomer may be act as a new reservoir of inorganic iodine in the stratosphere.

通过活性卤素的系列均相与非均相化学反应合成了几种瞬态物种，采用原位紫外光电子能谱和光电离质谱结合量子化学理论计算对化合物的分子结构、稳定性以及分子轨道特性进行了研究，首次获得了这些物种的电子结构和几何结构的信息；同时研究了大气中有重要作用的乙酰过氧硝酸酯和三氟乙酰过氧硝酸酯的电子结构性质及热解过程；采用紫外光电子能谱手段首次研究了系列卤代吡啶和噻吩的取代基效应；通过量子化学理论计算研究了乙酰基过氧自由基与IO自由基的大气化学反应及其最稳定异构体CH3COOIO2的解离，发现该物种可能是无机碘化合物在平流层中的储库物种。

By the B vitamins pantothenic acid to be part of a coenzyme, by thiol molecules with the acid or other organic acids acyl combined into a acetyl or another acyl-carrier involved in a variety of acyl synthesis and catabolism It is an important acyl coenzyme metabolism.

由B族维生素泛酸参与组成的一种辅酶，借分子中的巯基与乙酸或其他有机酸的酰基结合，成为一种乙酰基或另一些酰基的载体，参与酰基的各种合成和分解代谢，是酰基代谢中重要的辅酶。

Insects polysaccharide from insect crust are a natural macromolecular polymers that remove behind the acetyl group getting usually that paries draw, which are currently found only bring positive charge of the animals cellulose in the natural world- containing amino polysaccharide of high-molecular compound.

昆虫多糖是从昆虫体壁提取的甲壳素脱去乙酰基后得到的一种天然高分子聚合物，也是目前发现的自然界中唯一带正电荷的可食性动物纤维素——含氨基多糖的高分子化合物。

The other for: safrole, sassafras oil, safrole different 82 yuan / kg; 1 - phenyl -2 - propanone 2,500 yuan / kg; 3.4 dioxane methylene diphenyl -2 - propanone 7200 yuan / ton; Piperonal 1,000 yuan / kg; N-acetyl-o-amino benzoic acid 11500 yuan / ton; anthranilic acid 15,500 yuan / ton; Phenylacetate 15,000 yuan / ton; acetic anhydride 9900 yuan / ton; trichloromethane 4100 yuan / ton ; anhydrous ether 8500 yuan / ton; piperidine 58000 yuan / ton; methyl ethyl ketone 10,000 won / ton; sulfate 1,200 yuan / ton; hydrochloride 400 yuan / ton; ethanol 4200 yuan / ton.

另供：黄樟素、黄樟油、异黄樟素82元/公斤；1-苯基-2-丙酮2500元/公斤；3.4 亚甲基二氧苯基-2-丙酮7200元/吨；胡椒醛1000元/公斤；N-乙酰邻氨基苯酸11500元/吨；邻氨基苯甲酸15500元/吨；苯乙酸15000元/吨；醋酸酐9900元/吨；三氯甲烷4100元/吨；无水乙醚8500元/吨；哌啶58000元/吨；甲基乙基酮10000元/吨；硫酸1200元/吨；盐酸400元/吨；无水乙醇4200元/吨。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。