查询词典 obtained

The photopolymerization led to stable latices and they were obtained with neither coagulation during synthesis nor destabilization over time. It was found that the obtained MMA homopolymers exhibited relatively narrow molecular weight distributions(PDI=1.27—1.36), which was characterized by GPC. The plots of number-average molecular weight vs. conversion and ln([M0]/) vs. time were linear respectively, indicating that the reaction was a controlled/living free radical polymerization.

结果表明，该细乳液体系非常稳定，在整个聚合过程中即没有絮凝物产生，也没有沉淀析出，获得了良好的ln([M0]/)与时间、数均分子量与转化率之间的线性动力学关系，并且在整个聚合反应过程中MMA均聚物的分子量分布比较窄，其多分散性指数较低(PDI=1.27~1.36)，具有明显的活性聚合特征。

Results We obtained a lysogenic bacteriophage MZTP01with clear plaque and 1 mm diameter. Fragment D with 2362bp (Genebank No. AY639599) was obtained after the phage DNA hydrolyzed by HindⅢ/EcoRⅠ. Among fragment D, the pep gene with molecular weight of 47 kDa and length of 1101bp was cloned and expressed. Recombinant M15 (pQE30pep) was built and overexpressed in Escherichia coli with a 47kDa clear band. At the same place a clear band was observed by Western blot. Judging from the time course expression, we could conclude that PEP protein produced at 1 hour after induction and then increased gradually. PEP protein was mainly in the form of inclusion body in the recombinant and slowed the growth speed of host. Homologous comparison of PEP protein from phage MZTP01 with other PEPs from BLAST were that phage MZTP01 PEP protein had 100% homologe with that of Escherichia coli K12, and most of others took the similarity in the range between 37%~84%.

诱导获得的溶原性噬菌体MZTP01斑点清晰，直径约1mm，成斑时间12h；从噬菌体基因组DNA双酶切(HindⅢ/EcoRⅠ)片段中回收长度为2362bp的D片段(Genbank登录号： AY639599)，又从D片段中克隆了长度为1101bp、编码367aa、分子量为47kDa的pep基因，表达载体M15(pQE30pep)在大肠杆菌(Escherichia coli， E.coli)中表达获得了47kDa的清晰表达带，在1h 时开始产生蛋白并有逐步上升的趋势； Western blot 也在47kDa处得到一条清晰的条带；可溶性分析表明PEP蛋白在重组菌株中是以不可溶的包含体形式存在的，该蛋白的产生明显地抑制了宿主的生长速度；噬菌体PEP氨基酸序列之间的同源性比较表明，噬菌体MZTP01 PEP蛋白与来自E.coli K12噬菌体的PEP蛋白的同源性程度最大。

During preparation, mercapto ethanol isooctanoate, alkyl or ester tin chloride and organic solvent are first heated and refluxed while adding catalyst; organic layer is then obtained through separating liquid and decompression distilled; and through further steps, the compound is obtained. The synthesis process of the present invention is simple, and has conversion rate higher than 95 %, normal pressure and low reaction temperature, low power consumption and less pollution, and the prepared compound has high reaction activity and low toxicity.

制备时，将异辛酸巯基乙醇酯、烷基或酯基氯化锡和有机溶剂加热回流，同时加入催化剂，然后通过分液，保留有机层，再对有机层进行减压蒸等步骤制得所述化合物；本发明合成工艺简单，转化率大于95％，反应在常压条件下，反应温度低，从而降低了能耗，减少了污染，所制备的化合物具有反应活性高和毒性小的特点，使用安全。

METHODS: Three patients who reported metamorphopsia but showed no changes in the retina in conventional fundus photographs were examined. High-resolution retinal images were obtained with the AO fundus camera and by FD OCT. The images were compared with the findings obtained by standard clinical tests, including Amsler charts and fluorescein angiography.

对报告有视物变形但经传统眼底照相未发现视网膜变化的3例患者进行检查，使用自适应光学眼底照相和傅立叶域光学相干成像获得高频视网膜图像，将所获得的图像和标准临床检查结果对比，这些标准临床检查包括Amsler方格和荧光血管造影。

The yield of 〓-methoxyl or m-nitrocinnamic acids obtained from methoxycarbonylmethylenephosphonates and corresponding substituted benzaldehydes in the presence of is 11% or 13% higher than that obtained from those reactions without catalyst.

〓 [注：表中ρ、〓和C为式（2-5）中的相应系数和常数；γ为相关系数，F为F比值，〓为相应系数ρ、〓和C的偏差，〓和〓为相应系数的T检验，CL为置信水平，n为相关点数。表听数据系使用BJORK'S（1967）程序于Z-80计算机上计算结果。]

The relaxation strength obtained from Cole-Cole plots (1) is associated with the amount of water molecules subjected to electric conduction, while the obtained from Cole-Cole plots (2) mainly represents the total amount of methylol groups and adsorbed water molecules possible to reorient.

由 Cole-Cole 圆弧则(1)得到的弛豫强度与进行离子导电性的水分子的数量有关，而由 Cole-Cole 圆弧则(2)得到的弛豫强度则代表木材中可能进行回转取向运动的伯醇羟基和吸着水分子的总数。

The experimental results indicate that the maximum slope angle measured by LSCM reaches at least 50°, and the clear three dimensional profile is obtained in the profile analysis of cantilever. Meanwhile, the deformation accurately measured by two dimensional quantitative analysis is 3.145μm, and the field area is 384μm×288μm in mosaic function equipped with LSCM in 100×objective, which can solve the problem that the watched object's total shape in single frame micrographic image can not be obtained under high microscopic enlargement times.

实验结果表明：运用LSCM测量的斜面最大角度至少可以达到50°；在悬臂梁的形貌分析中，可获得清晰的三维形貌，同时通过二维定量分析精确测得其形变为3.145μm：在100×物镜下，运用拼接功能获得384μm×288μm的视场面积，解决了高放大倍数下，在单帧显微图像中无法获取所观测对象全貌的问题。

According to the characteristic of silver nanoparticles, their uniform dispersion in reaction media was obtained by surface modification, ultrasonic radiation and the select of emulsion, and then emulsion polymerization system were formed by combination with reactive monomer and initiator. Nano-Ag/Polystyrene core-shell particles were prepared by emulsion polymerization and their microstructure were characterized by TEM, FTIR, XPS, AFM and TG/DTA. The experimental results showed that silver nanoparticles were coated by polymer and the composite particles had typical core/shell structure, and the microlevel combination was realized. Meantime, the form mechanism of nano-Ag/polystyrene core-shell particles was tentatively researched. The conclusion is that the perfect coating was able to obtained by the control of reaction condition.

根据纳米银粒子的特性，借助于表面处理、超声辐照以及乳化剂的选择，使其均匀分散在反应介质中，再与反应单体、引发剂等形成乳液聚合体系；采用乳液聚合方法、包裹聚合方式，制备出纳米银/聚苯乙烯核壳复合粒子，并借助于TEM、FTIR、 XPS、AFM、TG/DTA等分析手段对复合粒子微观结构进行了表征；结果表明：纳米银粒子表面被聚合物层包覆，复合粒子呈明显的核壳结构，实现了微观尺度上的复合；同时，初步探讨了纳米银/聚苯乙烯核壳复合粒子的形成机理，指出：通过控制反应条件，可以使形成纳米银/聚苯乙烯核壳复合粒子的聚合反应方式占主导地位，实现最大限度地包覆。

Method］ With filter paper as the sole carbon source, a Myxobacteria CMC0606 was obtained; through observing its morphology, 16S rDNA cloning and sequencing, the bacteria was identified; adding XAD-16 into fermentation broth, crude extracts of fermentation products were obtained.

方法］以滤纸为唯一碳源，得到1株粘细菌CMC0606；通过观察其形态及16S rDNA克隆与测序进行菌种鉴定；向其发酵液中加入大孔吸附树脂XAD-16，收获发酵产物粗提物。

In this paper, adopted augmenting culture in nitrite bacteria culture media and the method of silica gel plate isolation,31 strains of bacteria were isolated from vegetable garden soil of our school. The color reaction test was carried out with Griess reagent and culture fluid, which was regarded as the index to determine producing NO2- or not. 13 strains which color were deep were obtained and they were further rescreened by doing nitrite test. A strain N4(coded N4,the same to the following)with higher rate of nitrosification was picked up after rescreened; A strain B08( coded B08 ,the same to the following) with higher rate of denitrification was obtained after isolated and rejuvenated from our lab conserving mixed denitrifying bacteria culture.

本研究采用亚硝化细菌富集培养基选择培养和硅胶平板分离法，从本校农场菜园土中分离到31株细菌，以格利斯试剂对培养液的反应颜色深浅作为指标衡量其产NO_2~-的多少，经初筛从分离株中筛选出13株格利斯试剂反应颜色较深的菌株，再对这13株菌作亚硝化试验，最终选出一株亚硝化速率较高的菌株(编号为N_4，下同)；另外，通过对本实验室保存的反硝化细菌混合菌液进行分离复壮，筛选出一株反硝化速率高的菌株编号为B_

The receding calculations and experiment analyses in this subject are built on the blood cast of pig tongue.

本研究课题的前期工作是采用猪舌血管铸型模拟人舌而进行的数值计算与实验分析。

"Each human infection constitutes an opportunity for genetic modification of the virus through reassortment, mutation, or both...."

&每一次人类的感染都暗藏着一次基因修改的机会，无论是通过病毒的整合、突变或者兼而有之。。。。&