查询词典 modified bessel function

The diluted monoplast suspension was equally assigned into 3 samples, and separately used for simple modified differential adherence, simple serum-free conditioned medium, and modified differential adherence ＋ serum-free conditioned medium.

①无菌条件取大鼠嗅球组织，消化、离心去除上清液后，用含体积分数为0.2胎牛血清的DMEM/F-12培养基重悬，稀释的单细胞混悬液均分成3份，分别用于单纯改良差速贴壁、单纯无血清条件培养液纯化和改良差速贴壁＋无血清条件培养液纯化的实验。

METHODS: Olfactory bulb was sterilely collected from rats, digested, and centrifuged. After removal of the supernatant, the olfactory bulb was resuspended with DMEM/F-12 medium containing 0.2 volume fraction of fetal bovine serum. The diluted monoplast suspension was equally assigned into 3 samples, and separately used for simple modified differential adherence, simple serum-free conditioned medium, and modified differential adherence + serum-free conditioned medium.

①无菌条件取大鼠嗅球组织，消化、离心去除上清液后，用含体积分数为0.2胎牛血清的DMEM/F-12培养基重悬，稀释的单细胞混悬液均分成3份，分别用于单纯改良差速贴壁、单纯无血清条件培养液纯化和改良差速贴壁+无血清条件培养液纯化的实验。

Nontronite modified copper-plated electrodes possess the largest reductive currents of paraquat due to their larger charge density and electronic transferability of octahedral iron. Overall, based on this study, clay modified copper-plated electrodes show high potential in future research for determining biochemical compounds.

黏粒修饰镀铜电极对巴拉刈的侦测结果显示三种黏土矿物仍以具有较高电荷密度及八面体层中铁的电子传导之多铁蒙特石所测到的还原电流量最大，黏粒修饰镀铜电极未来在生化物质的侦测上应具有研究发展的潜力。

On the yarn quality of ramie fiber/ cotton modified elastic nubby yarn are analysed,and discusses the process measure that processing modified elastic nubby yarn .

结合对FA502型细纱机进行改造，采用瞬时改变中后罗拉速度的装置，通过生产实践和工艺试验，分析了纤维性能、纺纱工艺等因素对苎麻纤维/棉变弹竹节纱质量的影响，探讨了生产变弹竹节纱的工艺措施。

Organophilic montmorillonite/SBS modified bitumen composites were prepared by melt intercalation and their microstructures were charactenzed by XRD and fluorescence microscopy. The physical properties and ageing properties of OMMT/SBS modified bitumen were investigated.

采用熔融插层法制备了有机蒙脱土/SBS改性沥青，利用SRD和荧光显微镜表征了OMMT/SBS改性沥青的微观结构，研究了OMMT对SBS改性沥青物理性能和老化性能的影响。

The spectroscopic analysis, TGA and X-ray diffraction showed that the organic reagent had intercalated into the layers of MMT, and the interlayer space of the organophilic montmorillonite modified by compound surfactants was larger than that of the CTAB modified organophilic montmorillonite.

红外光谱分析、热重分析和X-射线衍射分析表明，有机插层剂已进入蒙脱土的层间，CTAB/己内酰胺复合插层有机蒙脱土的层间距大于单阳离子CTAB插层有机蒙脱土的层间距。

A modified γ-Al〓O〓 was prepared by a special precipitation method with aluminum nitrate solution containing a certain amounts of orthosilicic acid and ammonia aqueous solution. Compared with commercial γ-Al〓O〓, the modified γ-Al〓O〓 was an effecient catalyst for dehydration of tetrahydrofurfuryl alcohol to dihydropyran. The results revealed that the strong acid sites on the surface of the catalyst may play a crucial role in this reaction.

并以硝酸铝和氨水为原料，用沉淀法制备出一种高比表面和拥有较多强酸中心的γ-Al〓O〓，它在四氢糠醇开环脱水制备二氢吡喃的反应中有优良的催化活性，通过比较此γ-Al〓O〓和普通商业γ-Al〓O〓的Py-TPD图，发现强酸中心在制备二氢吡喃的反应中可能具有关键的作用。

On the base of analyzing the influence factor, such as mechanical capability and stress status characteristic of rolling material, osculant areas, modified scheme of the calculation model is put forword and the modified model is established.

在分析机械性能、应力状态特性和接触面积等因素对轧制力的影响的基础上，对该计算模型提出了修改方案，建立了新的轧制力改进模型。

The oxidable potential difference of DA and AA was about 184 mV at Poly-Evans Blue modified electrode. So it is used to simultaneously determine the DA and AA without any interference. The interference of other components could be efficiently eliminated at the modified electrode, and this method can be used for determination of DA and AA in real sample with satisfactory results.

当DA与AA共存时，由该修饰电极检测的二者氧化峰电位差达184mV，故可同时测定DA和AA，并有效消除其它组分对DA测定的干扰，已用于实际样品中DA和AA含量的测定，结果令人满意。

In order to improve the electro-catalytic activity of platinum based catalyst to methanol oxidation, in this thesis, firstly prepare heteropoly acid modified Pt/GC electrode with different concentration by cyclic voltammetry method, and then test the cyclic voltammetry curves individually in vitriolic and methanol solution. The study shows the best concentration for both phosphomolybdic acid and phosphotungstic acid is 1×10~(-3)mol/L. And find the more heteropoly acid modified on electrode, the lower peak-up potential towards methanol because of the existence of oxygenous species.

为了改善铂基催化剂氧化甲醇的催化活性，本论文首先通过循环伏安扫描法制备了不同浓度磷钼酸和磷钨酸修饰的Pt/GC电极，通过研究Pt/GC电极在修饰前后在硫酸溶液中及含甲醇的硫酸溶液中的循环伏安行为发现，磷钼酸和磷钨酸均能在PtRu/C电极上发生氧化还原反应，而且杂多酸修饰浓度对Pt/GC电极氧化甲醇的催化活性有很大影响。

Molecular Distillation is a kind of high vacuum distillation method, which is suitable for the separation of high boiling, heat sensitivity and viscidity products.

分子蒸馏技术是一种在高真空条件下进行的连续蒸馏过程，适合于分离高沸点、热敏性及具有生物活性的混合物。

They are to the Noughties what yuppies were to the Eighties .

那在六十年代是时髦的，但在八十年代肯定是过时了