Selec相关论文
Cesium heteropolysalts Cs3PMo12O40 and HCs3PVMo11O40 were synthesized by modifying the preparation conditions in order t......
Effect of cobalt and its adding sequence on the catalytic performance of MoO_3/Al_2O_3 toward sulfur
The effect of promoter cobalt and the sequences of adding cobalt and molybdenum precursors on the performance of sulfur-......
Selective Oxidation of Secondary Alcohols in the Presence of Primary Alcohols by an Oxoammonium Salt
Recent reports on the oxidation of alcohols by piperidine oxoammonium salts(1) have aroused much interest in investigat......
Design of nonuniform cosine-modulated filter-banks with the perfect-reconstruction property and arbi
In this paper, a method is proposed to construct recombination nonuniform cosine-modulated filter banks (CMFBs) with a p......
The time-energy properties of high-order harmonic generation (HHG) are calculated for a linearly polarized 7-fs laser pu......
To explore the feasibility of extracting aromatic acid products from oxidizing coal,two aromatic acids, trimellitic and[......
Wavelength combining with a transmitting Volume Bragg Grating recorded in photo-thermo-refractive glasses is present.The......
Selective swelling of polysulfone/poly(ethylene glycol)block copolymer towards fouling-resistant ult
Fouling resistance of ultrafiltration(UF)membranes is critical for their long-term usages in terms of stable per-formanc......
目的探讨早产儿视网膜病(retinopathy of prematurity，ROP)患儿口服普萘洛尔治疗前、后血管内皮生长因子(vascular endothelial gro......
Through the investigation on influence of temperature,humidity and effects of landscape in Harbin First Department Store......
The fabrication of a-C:H films from methane has been performed using dielectric-barrier discharges at atmospheric press......
Synthesis of 1,4,6-tri-O-benzyl myo-inositol-A key intermediate to myo-inositol-1,2,5-O-trisphosphat
A new synthetic approach to 1,4,6-tri-O-benzyl myo-inositol was described on the basis of the regioselective benzylatio......
We have studied the methane activation in non-oxidative condition[1,2],and have shown the possibility of direct methane ......
AM1 molecular orbital method using the unrestricted Hartree-Fock(UHF) calculations has been applied to investigate the ......
In this article, a multiobjective optimization strategy for an industrial naphtha continuous catalytic reform-ing proces......
FT-IR Spectroscopic Investigation of Co-adsorption of Acetonitrile and CO on Fresh Mo_2C/Al_2O_3 Cat
The adsorption of acetonitrile and its co-adsorption with CO on fresh Mo_2C/Al_2O_3 catalyst have been studied by insitu......
The effect of steam dilution on the formation of coke and minor products in 2-methylpenatne crackingon ultra stable HY a......
Studies on the structure and catalytic performance of S and P promoted Na-W-Mn-Zr/SiO_2 catalyst for
A series of Na-W-Mn-Zr/SiO2 catalysts promoted by different contents of S or/and P were prepared and their catalytic per......
A nickel nanowire catalyst was prepared by a hard template method, and characterized by transmission electron microscopy......
Synergistic catalysis of isolated Fe~(3+) and Fe_2O_3 on FeO_x/HZSM-5 catalysts for Friedel-Crafts b
FeO_x/HZSM-5 catalyst with 8 wt.%Fe-loading(8-FeZ) exhibited significantly higher reactivity in the benzylation of benze......
90Sr, which has high fission yield, long half-life, and β radiation exists in 1AW, nuclear plant liquid waste, nuclear ......
本文采用分子动力学方法研究了常温(300K)条件,不同气相密度下H_2S/CH_4二元混合物在石墨烯表面的吸附性能.讨论了气相密度对气-固......
苏北盆地面积3.8*104KM2,天然气资源丰富,发育了海相下、中、上古生界三套巨厚烃源岩系和陆相早第三系及局部地区中、下侏罗统两套......
,Two-step gate-recess process combining selective wet-etching and digital wet-etching for InAlAs/InG
A two-step gate-recess process combining high selective wet-etching and non-selective digital wet-etching techniques has......
A novel long-period fiber grating (LPFG) film methane sensor is designed and applied successfully. The sensor is constru......
Index selection on seed traits under direct,cytoplasmic and maternal effects in multiple environment
Crop seeds are important sources of protein, oil, and carbohydrates for food, animal feeds, and industrial products. Rec......
The control system, which includes structure, the composition of software and hardware, the form of PID control system ......
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生......
Identification of Rice Accessions Associated with K~+/Na~+ Ratio and Salt Tolerance Based on Physiol
The key for rice plant survival under Na Cl salt stress is maintaining a high K~+/Na~+ ratio in its cells. Selection for......
Alloy selection and alloy design both require consideration of an array of material attributes, including in-service pro......
Selection of leading industries for coal resource cities based on coupling coordination of industry&
Taking the city of Qitaihe is as an example in order to provide practical methods for the selection of leading industrie......
...
高熵合金是近十几年来迅速发展起来的一类多组元合金,具有很多优异的性能.增材制造技术是一种短流程的先进制造工艺,能实现复杂零......
HPS(科学史、科学哲学与科学社会学)材料是渗透生物学学科核心素养的良好素材。人教版高中生物新版本选择性必修模块的3本教材共计......
乙烯三聚四元催化剂由中心金属A、含氮配位体B、烷基铝D和促进剂卤化物C组成，根据四种组分不同的配制方式，旨在实现提高催化剂的活性......
介绍了ＰＴ－１０５型催化剂在乙胺装置上的应用情况，在气体空速为１６５０ｈ＾－１条件下考察２４０小时，乙醇单程率为５２．８％，乙胺选择性为９７．８％。通过改变Ｎ／Ｃ比可调整一，二，三乙胺产出比......
在野外对日本菟丝子(Cuscuta japonica)选择寄主的行为进行观察,结果表明,在所研究的植物群落中,日本菟丝子在不同寄主上发生缠绕......
考察了MoBiTeO／SiO2催化剂对丙烷选择氧化制丙烯醛的催化性能，并采用原位拉曼、X射线衍射和X光电子能谱等技术研究了催化剂在反应过......
目的:通过对产黄青霉菌的诱变选育,最后达到提高青霉素生产水平.方法:用紫外线对青霉素生产菌“产黄青霉”进行诱变处理,通过定向......
目的探讨门静脉系统三维影像重组下腹腔镜选择性断流术治疗门静脉高压症的效果。方法分析2007年1月～2009年8月35例门静脉高压症患者......
利用小波变换的数学理论和方法,对基本的数据分布进行小波分解,在此基础上采用一种新的方法来动态地构建和维护基于小波的直方图,......
合成了2-（4-甲氧基苯基）咪唑并[4,5-f]1,10-菲罗啉,采用傅里叶红外光谱、元素分析和X射线单晶衍射表征了化合物的晶体和分子结构.结......
为了比较研究4种含七叶苷的单增李斯特菌选择性分离培养基（PALCAM、OXA、OXA和LPM）对单增李斯特菌的检测效果,参考国标GB4789.28-201......
采用加权密度近似密度泛函理论研究了二元混合接枝高分子刷在不同性质溶剂诱导下的垂直相分离情况。计算发现,对于具有一定相容性......
以健康雏鸡消化道优势共生乳酸菌为试验对象,用氮_甲基-氮-硝基-氮-亚硝基胍对其进行β-半乳糖苷酶基因缺陷型菌株定向诱导突变,在......
具有不等式约束的二次规划问题通常采用引入松弛变量的单纯形法来求解，它的主要缺点是使问题的维数增加，需人工找出初始容许解并反复......
制备了二氧化硅负载的聚铝氨烷及其与铂金属的络合物，此络合物在３０－５０℃，０．１ＭＰａ的条件下对β萘酚的氢化反应具有较高的催化活性，并能选择性地生成......
槟榔江水牛是近年在云南西部发现的我国第一个本土河流型水牛群体,具有较高的产奶性能,是发展我国水牛奶业宝贵的遗传资源。本文基......
