脱氧

The deoxygenation and reduction of some organic substrates with samarium diiodide were investigated.

本文研究了二碘化钐对一些有机化合物的脱氧反应，以及它在醇存在下对α-卤代酮、偶氮苯和苯醌的还原反应。

The Key step is the one-potreductive deoxygenation of 〓-unsaturated 〓-tosylhydrazone and reduction of 9-carbonyl with sodium borohydride.

关键步骤是以硼氢化钠为还原剂一步完成α，β不饱和腙的还原脱氧、双键重排以及9—位羰基的还原反应。

JHO-2 catalyst requires low reaction temperature, has high space velocity and high deoxygenation efficiency, and the residual oxygen in the carbon monoxide gas is lower than 1ppm.

JHO-2型催化剂具有反应温度低、空速大、脱氧效率高等特点，净化后一氧化碳气体中残氧量小于1PPM 。

These products generally contain much less oxygen comparing with the lignocellulosic crude material. As such, microbial bioconversion is chosen as our approach to achieve deoxygenation of lignocellulose at the expense of part of the biomass per se.

根据木质纤维素类生物质氧元素含量高的固有特点，我们认为生物质转化的化学本质是脱氧，进而选择以微生物生物转化技术为核心手段。

Using first order plug-flow reactor model, BOD5 removal rate constants of the whole wetland system were estimated to be 0.50 1/day (at 24℃) and 0.76 1/day (at 24℃) in the start-up and stable phase, respectively. These values were comparable to or even higher than the value of deoxygenation rate constant, 0.23 1/day (at 20℃), that is normally used in the river water-quality model.

由一阶柱塞流反应器模式(first order plug-flow reactor model)估算人工湿地系统启动阶段及稳定操作阶段的BOD5去除速率常数平均分别为0.50 1/day(24℃)及0.76 1/day(24℃)，相当於或甚至高於一般河川水质自净模式中的BOD5脱氧速率常数的0.232 1/day(20℃)。

This is the first interstrand type of cyclobutane dimer to be isolated and characterized in DNA.

这是cyclobutane二聚体的第一个interstrand类型在脱氧核糖核酸将隔绝和描绘的。

Using the flexibility of proteins, egg white albumin was pore-formed and heat-denatured in the presence of substrate template. BSA protein and herring sperm DNA were trasted by precipitation method in organic solvent.

利用蛋白质在水溶液中的柔性，分别采用热变性法对蛋清蛋白质进行生物印迹和沉淀法对BSA进行生物印迹，并在BSA印迹的基础上又印迹了鲱鱼精脱氧核糖核酸。

Results: The prepared AmB-PBCA nanoparticle had a regular spherical or elliptic surface, with a mean diameter of (69.01±28.56) nm. The curve of standard AmB was linear within the range of 1.12-5.60μg/ml: D405=0.1634c+0.0066 (r=0.9993). The average recovery of AmB-PBCA-NP was 99.93%, showing the solution of AmB-PBCA-NP was stable within 12 h. The nanoparticles showed a sustained drug release in vitro within 24 h. The optimized recipe was: DextranT-70 stabilizer without sodium deoxycholate, with a mean encapsulation rate of 56.10% and a drug loading rate of 82%.

结果：制备的AmB-PBCA-NP外观呈圆或类圆形，平均粒径(69.01±28.56)nm，分散均匀；AmB标准品在1.12~5.60μg/ml范围内的线性回归方程为：D405=0.1634c+0.0066，r=0.9993，AmB-PBCA-NP的平均回收率为99.93%，其溶液在12h内稳定性较好；体外释放实验表明24h体外释放具有一定的缓释性；实验发现最优化的处方为稳定剂采用DextranT-70，且不加助溶剂脱氧胆酸钠，其包封率及载药量均比较高，分别为56.10%、82%。

RESULTS The chromatographic grade purity of the eluate is above 98% by HPLC,the recovery rate of dCMP,dAMP and dTMP is above 95%,the recover.

结果实验结果发现dCMP，dAMP，dTMP的收率为95%以上，dGMP的收率为85%以上，所获得的混合脱氧单核苷酸经高效液相色谱检测色谱纯达98%以上。

Eukaryotic genomes consist of a number of chromosomes whose DNA is associated with different kinds of proteins.

真核基因组包含许多染色体，而它的脱氧核糖核酸由不同种类蛋白组成的。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。