查询词典 O2

The effects of high oxygen (100%O2) treatment on microbial growth and fruit decay in strawberry (Fragaria×Ananassa Dutch cv. Shuofeng) during 10d storage at 2℃ and subsequent 2d shelf period in air at 20℃ were investigated.

研究了高氧(100%O2)处理对&硕丰&草莓在2℃10d冷藏及20℃空气中2d货架存放期间果实微生物生长和腐烂的影响。

RESULTS:(1) EMP significantly increased O2(superscript -) generation in BAEC culture, which was prevented about 50% by pretreating the HAEC with L-NAME.

结果：(1)EMP 明显增加BAECO2产生，L-NAME可以抑制50%EMP导致的O2产生增加。

The results indicated that the water or 50% ethanol extracts from peonies petals could reduce light absorption of DPPH and OH initiated hydroxylation of salicylate, and inhibit O2(superscript -) mediated light chemical reduction of nitroblue tetrazolium effectively, and lipid peroxidation of polyunsaturated fatty from yolk lipoprotein, in which DPPH scavenging activities of 6 peonies water extracts were hinger than that of 200 μg/mL BHT, but lower than 80 μg/mL Vc. In 4 kinds of detecting systems of antioxidation, the peroxidation activity of deep colored flowers of peonies was higher than that of light colored flowers of peonies.

牡丹花瓣提取液能明显抑制卵黄组织匀浆的脂质过氧化作用，降低DPPH的吸光值、抑制O2介导的NBT光化学还原及OH作用下的水杨酸羟基化作用，其中牡丹花瓣提取液清除DPPH自由基的活性高于200μg/mL BHT，但低于80μg/mL Vc.6个品种的牡丹花瓣提取液，在4种测定系统中均具有一定程度的抗氧化能力，且水提取液的抗氧化活性略高于体积分数50%乙醇提取液，深色花瓣提取液对不同自由基的清除能力较强。

Thermal conductance of yellow-browed bunting,chestnut-flanked white-eye,hwamei and red-billed leiothrix were 0.24,0.31,0.21 and 0.34 ml O2/,respectively,below the lower critical temperature,which were 149％,149％,215％,and 243％ of the expected value based on their body mass,respectively.

在下临界温度以下，黄眉NFDA2、红胁绣眼鸟、画眉和红嘴相思鸟的最小热传导分别是0.24、0.31、0.21和0.34 ml O2/，分别是体重预期值的149％、149％、215％和243％。

The oxidase system includes both membrane-bound and soluble cytosolic proteins. The primary feature of this enzyme is stimulus-dependent activation and which mechanism is the phosphorylation and translocation of a complex of cytosolic factors to the membrane, where they associate with a flavocytochrome enzyme.The fully assembled complex functions as an electron transport system,moving electrons from cytosolic NADPH to molecular oxygen to form superoxide anion（O2-）, which, along with subsequent reactive products called respiratory burst,exerts microbicidal and cytotoxic activities.

此氧化酶体系包括膜结合的和可溶的胞浆蛋白，其主要特征为依赖刺激而活化，机制为复合体的胞浆因子磷酸化并转位至膜，在这里与细胞色素酶相关联，组装完全的复合体在功能上作为一个电子转运体系，从胞浆NADPH转移电子给分子氧形成超氧阴离子（O2-），伴随着接下来的活性物质产生，也叫呼吸爆发，发挥抗菌和抗细胞毒素的活性。

With the increase of concentration of aqueous extract from Peganum multisectum increased, root vigor, the contents of chlorophyll, soluble protein and nucleic acid in roots and shoots of alfalfa seedlings decreased, while the activities of protease and nuclease, the contents of O2ˉ, H2O2 and malondiadehyde increased, the activities of superoxide dismutase, catalase and peroxidase first increased and then decreased.

幼苗根系活力和叶绿素、可溶性蛋白质、核酸含量随水浸液浓度的提高而降低，蛋白酶和核糖核酸酶活性及超氧阴离子（O2ˉ）、H2O2和丙二醛含量则增加，超氧化物歧化酶、过氧化氢酶和过氧化物酶活性呈先升后降变化。

In this study we quantitatively evaluated, by a stable paralysis/stableinfusion rate method, the difference between two standardizedparalysis levels—train-of-four count of 2 responsesand posttetanic count of 2. Ten ASA physical status I–IIconsenting adult patients scheduled for elective surgery wereanesthetized (sufentanil/propofol), tracheally intubated, mechanicallynormoventilated with a fixed O2/air mixture, and normothermic;oropharynx and thenar temperatures were maintained above 36°and 32.5°C, respectively.

在本研究中我们用稳定肌松/稳定输注速度方法定量地评价了两个标准化肌松水平――四个成串刺激计数为2个反应与强直后计数为2――之间的差异。10例 ASA 分级 I–II 预定行择期手术的已获取同意的成年患者行麻醉、气管插管、用混合 O2/空气正常机械通气，且保持正常体温；口咽和鱼际温度分别维持在36°和32.5°C 以上。

A diperoxovanadate complex NH4[OV(O2)2{2-(2'-pyridyl)-imidazole}]×4H2O,bpV for short,was investigated at the level of cell and animal based on its proliferation on cancer cells,inhibition on alkaline phosphatase and anti-tumor in animal experiments.

在细胞和动物实验水平上，研究了双过氧钒化合物NH4[OV(O2)2(C8H7N3)]×4H2O简写bpV(Imi-Py对癌细胞的增殖作用，碱性磷酸酶的活性抑制和体内抗肿瘤作用。

the title compound was synthesized and its structure was studied in theory.the schiff base compound was synthesized by condensation of paeonol with furylfurylamine,then it was deoxidized by sodium borohydried.the energies,bound lengths,bound angles,the net charges of main atom and contributive percents of frontier orbital in the title compound have been calculated by software hyperchem 7.0 in half experience method.the yield rate of title compound was 65.6%.the result of calculation showed that the most of the bond lengths and angles in the system were in the the normal range,negative charge mainly concentrate on o1,o2,o3 and n1.the title compound behaves as quadridentate ligand.

目的合成标题化合物并对其结构进行了理论研究。方法以丹皮酚和糠胺为原料合成席夫碱，经硼氢化钠还原得标题化合物；使用hyperchem7.0程序，用半经验方法计算了化合物分子中能量分布、主要键长、键角以及主要原子的净电荷分布和前言轨道分布。结果标题化合物，收率65.6%；计算结果分析表明，分子中主要原子之间的键长、键角基本在正常的范围内；负电荷主要集中于o1，o2，o3和n1上。

NO+NH3 temperature-programmed reaction runs over reduced catalyst samples pretreated with various oxidizing species showed that both NO2 and HNO3 were able to reoxidize the V catalyst at much lower temperature than gaseous O2: furthermore, they significantly enhanced the NO + NH3 reactivity below 250 C via the buildup of adsorbed nitrates, which act as a surface pool of oxidizing agents but are decomposed above that temperature.

不+NH3 温度-规划反应奔跑结束减少催化剂样品预先处理与各种不同的氧种表示两者的没有 2 和 HNO3 能够到再氧化 V 催化剂在非常低的温度超过气体的 O2：此外，他们重要地可提高的那不+ NH3 反应度在下面 250？C 经由组织吸附硝酸盐，哪一个行为当做一表面池氧代理人但是被分解上方哪一温度。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐