selecti相关论文
Additive manufacturing of metallic and polymeric load-bearing biomaterials using laser powder bed fu
Surgical prostheses and implants used in hard-tissue engineering should satisfy all the clinical,mechani-cal,manufacturi......
New techniques of on-line biological sample processing and their application in the field of biophar
Biological sample pretreatment is an important step in biological sample analysis. Due to the diversity of biological ma......
Effect of the support calcination temperature on selective hydrodesulfurization of TiO_2 nanotubes s
TiO_2 nanotubes(TiO_2-NTs) were synthesized by the hydrothermal method.Co and Mo active components were supported on a s......
Influence of interactions between chromium and cerium on catalytic performances of CrO_x–CeO_2/Ti-PI
A series of CrOx–CeO2/Ti-PILC(PILC is pillared interlayered clay)catalysts for n-butylamine oxidation were prepared usi......
Study of an athermal infrared dual band optical system design containing harmonic diffractive elemen
A harmonic diffractive element (HDE) is first successfully introduced to the athermal system of infrared dual band in th......
Studies on New Additions to 5-Methoxy-2 (5H)-Furanone: 1, 4-Addition of Grignard Reagents, and 1,3-D
Addition reaction of Grignard’s reagent to 5-methoxy-2(5H)-furanone 1 was accomplished, which provided a new possible r......
V/SiO_2 catalysts compared to Cr/SiO_2 catalysts were studied for dehydrogenation of n-butaneto butenes.Several methods......
Liquid-liquid equilibrium (LLE) data for the ternary system water-ethanol-dimethyl succinate have been determined experi......
Cytoplasmic male sterility exists widely in most natural populations of welsh onion (Allium fistulosum L.), which makes ......
The extraction capability of aurum with di-(2-ethylhexyl)monothiophosphoric acid from hydrochloric acid solu-tion has be......
Cytotoxic activity of crude extracts and fractions from Premna odorata(Blanco),Artocarpus camansi(Bl
Objective:To evaluate the cytotoxic activities of Premna odorata(P.odorata)leaves and bark,Artocarpus camansi(A.camansi)......
Treated silica was found to be active for methane partial oxidationto formaldehyde.The results of kinetic study show th......
With the support by the National Natural Science Foundation of China and National Science&Technology Major Projects of C......
■COLLECTIONSOFOILANDGASPIPELINEANTI-STEALING ■FORUM AND LEAKAGE MONITORING TECHNIQUES Research on Control of Hydrocarb......
Eighteen 1-aroyl-4-(2-iodobenzoyl)thiosemicarbazides and corresponding semicarbazi- des were synthesized in excellent yi......
Comparative research on the catalytic activities of different molecular sieves for acetalization and
Molecular sieves with different acidities and pore-sizes have been applied to catalyze the acetalization and ketalizatio......
Pre-activation based stereoselective glycosylations: Stereochemical control by additives and solvent
Stereochemical control is an important issue in carbohydrate synthesis.Glycosyl donors with participating acyl protectiv......
Bridging complexes of rare earth and cobalt cluster as catalyst precursors for Fischer-Tropsch synth
Three new bridging complexes of rare earth and cobalt cluster were synthesized and characterized via ICP, IR and TG tech......
As the requirement of non-radioactivity measurement has increased in recent years,various energy cali- bration methods a......
This paper reports a high-performance H2S gas sensing material that is made of ZnO nanowires (NWs) modified by an optima......
Metal oxide-based gas sensors have been widely used in portable systems for conventional gas or volatile organic compoun......
A novel defected ground structure (DGS) for the microstrip line is proposed in this paper. The DGS lattice has more defe......
In this paper, a novel framework for face recognition, namely Selective Ensemble of Image Regions (SEIR), is proposed. I......
目的 对比分析中国商环包皮环切术和传统包皮环切术的疗效和手术并发症.方法 有完整随访资料的479例中国商环包皮环切术患者和354......
摘要：通过田间小区试验比较水直播稻田滴施和喷施新型原卟啉原氧化酶抑制剂类除草剂5% K608悬浮剂的防效及其安全性差异。结果表明，......
目的抑制高强钢中合金元素在表面选择性氧化。方法在一种C-Mn-Si体系高强钢表面预先电镀100 nm厚度的镍,然后在镀锌模拟器上进行模......
在地铁换乘车站与市政桥梁、隧道与城市道路交叉口共线共面导致城市可用建设空间越来越少,探索一体化合建模式,推导出23种可能性方......
通过对帽儿山林场101块固定标准地的林木空间分布格局的检验发现,对天然林而言空间格局以随机格局和均匀格局为主.集聚格局一般是......
概述了水稻花培育种的技术操作程序和细胞无性系变异的选择方法。选择合适的水稻花培起始材料，选用适宜的培养基配方，对于水稻花培中......
金水橘是从湖北省通山县大畈镇西坑柑橘场发现的普通乳橘优良芽变单株经过对其母本树及后代的多年观察选育而成的无核乳橘新品种.......
介绍了华宇国际精品商厦工程概况，阐述了生活给水设计、消防给水设计的详细内容以及管材的选择。......
经对杉木中心产区优良种源的中间试验研究表明，种源间生长与木材基本密度性状有一定差异，根据对１２年木材基本密度性状和９年材积生长性状......
分别在引入剪应力作为独立变量和引入剪应力和弯矩分别作为独立变量的基础上，将求解Reissner-Mindlin板问题的S1元作了一些改进，构造......
钻井设备选型的合理性关系着平台的总体性能.将模糊层次分析法（FAHP）应用于深水半潜式平台钻井设备的选型,以钻井泵为例,综合考虑技......
研究了棉花皮棉产是与其植株性状的相关性。结果表明，衣分等１２个性状与皮棉产量呈正相关，其中子棉产量和经济系数与之极显著相关，衣分与......
试验结果表明，在环境条件一致的情况下，陕蚕系列原种的产卵性能表现为陕４＞陕３＞陕２。同一品种春繁与秋繁相比，造卵数平均增加２４．５３％，良卵数增加３９．５２％，良卵......
用Ｆ１双二倍体来母本与海岛棉的不同色素腺体基因型进行杂交，获得（亚洲棉×比克氏棉）×海岛棉种间杂交三种杂种（简称（亚×比）&#......
介绍了YN-1型镍系催化剂在新疆独山子天利实业总公司裂解汽油C9＋馏分选择加氢装置的工业应用。结果表明，YN-1型镍系催化剂用于胶质含......
选择Cu为助剂,采用微乳法分别优选具有较好稳定性的Cu和Pd微乳液体系,并将Cu和Pd依次负载于Al_2O_3载体上,经干燥、活化和还原制备......
目的：评价选择性阴茎背神经分支切断术治疗原发性早泄（PPE）的安全性和有效性。方法：2003年9月～2006年12月，对483例PPE实施了选择性阴茎背......
应用番鸭胚成纤维细胞（MDEFC）培育出适应MDEFC增殖并产生细胞病变的鹅细小病毒弱毒疫苗株，同时测定了该弱毒株的部分生物米特性。结果......
目前大多数国家的卫星任务调度系统都只考虑解决点目标的观测任务,只有美、法少数几个国家研究并解决了区域目标的分割与优选问题,......
以Al2O3为载体，采用特殊的化学镀法制备了Pd负载型碳二馏分选择加氢催化剂。对催化剂表面进行X射线光电子能谱和扫描电子显微镜表征......
介绍了RADSS型母线中阻差动保护的动作特性.母线上无空载线路时,母线内、外故障可用相同的特性曲线;有空载线路时,内部故障应用不......
构建催化剂特别是在亚纳米尺度下分散的贵金属催化剂的构效关系是多相催化研究领域中的主要任务之一.我们采用与金属Pt具有强相互......
以我国首颗航天育种专用卫星＂实践八号（2006）＂搭载的冬小麦邯6172为材料并以原始亲本为对照,对SP3选育出6个矮秆突变系株穗数进行观察......
以雌酚酮为模板剂,以丙烯酰胺和对乙烯基苯甲酸为单体合成出用于分离雌酚酮的新型复合吸附剂.对制备该吸附剂的最佳工艺条件进行了......
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以聚乳酸薄膜为研究对象,利用直接聚合的方法进行聚乳酸薄膜的制备,通过对二氧化碳、氧气和水蒸气在该种薄膜中的透过特性进行测定......
