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[目的]对甘蓝型油菜浙油50进行基因编辑,创制油菜早熟材料,为培育早熟油菜新品种奠定基础.[方法]BnFRI和BnFLC基因是控制油菜开花......
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Polyvinyl alcohol (PVA) hydrogels with excellent characteristics are considered as promising cartilage replacement mater......
A Fully Coupled Thermomechanical Model of Friction Stir Welding (FSW) and Numerical Studies on Proce
This paper presents a new thermomechanical model of friction stir welding which is capable of simulating the three major......
10年前,当日本作家村上春树的《挪威的森林》流行的时候.我的同学都迷醉得忧伤至极。我不曾被故事里的爱情、死亡、悲伤迷醉,却独......
Geometric and micro-structure design, tribology properties of beetle joints were experimentally studied, which aimed to ......
A novel synthesis process of ETS-4 titanosilicate using commercial anatase in the absence of fluorid
A novel synthesis process for ETS-4 titanosilicate using commercial anatase as the titanium source in the absence of flu......
RGHCM Garden Resorts is a five-star resort in northeastern Beijing. It belongs to the Capital Airports Holding Company (......
Experimental and numerical investigations have been conducted to study turbulent flow of water and heat transfer charact......
Mechanical properties of methane hydrate-bearing-sediments (MHBS) are basic parameters for safety analysis of hydrate ex......
Isolation and efficacy of entomopathogenic fungus(Metarhizium anisopliae)for the control of Aedes al
Objective:To isolate the entomopathogenic fungus Metarhixium anisopliae(M.anisopliae) in the local environment,and evalu......
Whether it’s new friends, someone we want to date, or perhaps a current or potentially new employer, it seems like we a......
Zhu Yimin had hoped to get his planned ironworks going after the Spring Festival. He did not expect the local government......
The ultra-violet(UV) detection has a wide application in both civil and military fields.ZnO is recognized as one of idea......
春化是指植物经过一段长时间低温处理,促进开花的过程。这一过程广泛发现于冬季植物和二年生的植物中,如拟南芥,小麦等。在春化过......
Dynamic response law about gravity retaining wall to seismic characteristics and earth fill properti
In order to find the dynamic response laws of retaining walls affected by certain earthquake loads,the influence of the ......
In China, central towns are an important pitch point in the urban system of a city or county. The cultivation and develo......
Mr.Tailing Wangdor is 83 years old this year.During his legendary life span,he had various identities:a young master in ......
Music is a universal language for mankind and a bridgebetween the hearts of all peoplein the world. Children are thefut......
Studies on the heat-transfer characteristics of liquid nitrogen (LN 2) have received increasing attention. When there i......
Microstructural features of friction-welded Ti-6Al-4V joint have been investigated by both optical microscope and trans......
Hydrodesulfurization and Hydrodenitrogenation Kinetics of a Heavy Gas Oil over NiMo/Al_2O_3 Catalyst
The kinetics of Athabasca bitumen derived heavy gas oil over NiMo/Al2O3 catalysts were studied in a JQ-II high-pressure ......
A knowledge-based system in structural component design based on fracture mechanics is developed in this paper. The sys......
As some of you may know， I am now on my year abroad in Germany as part of my university course. From my introductory cour......
China Autos Aim at Russian Market——Address at the Press Conference & Flag Presenting Ceremony on the
Ladies and gentlemen, Good morning! Firstly, please allow me, on behalf of Foton, to express our appreciation to friends......
Ni—SiC—h/BN composite materials were prepared by electrodeposition technique with the dispersion of SiC(10 g/L) and h/......
Editor’s note: BEIJING, May 24 (Xinhua) — Approved by the State Council, July 11 will be China Navigation Day and the ......
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应用美国精馏研究公司(FRI)的工业测试数据对当前国内应用的网孔塔板设计模型进行了评价,计算结果表明,塔板压力降模型和操作上限......
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......
Diamond-like carbon (DLC) films were synthesized by plasma immersion ion implantation and deposition (PIIID) on 9Cr18 be......
对薄壁Y型三通管的内管压成形进行研究.通过轴向补料,管材可以被推入模腔从而获得更高并且相对减薄率小的支管.但是Y型三通管的导......
The plane-strain compression test for three kinds of materials was carried out in a temperature range between room tempe......
经典的朗肯土压力理论忽略了墙土内摩擦角与挡墙倾角对土压力的影响,计算模型简便,而库伦土压力理论虽考虑因素较多,但没有考虑黏......
本文对双官能团烷基化试剂氯代异丁烯与不同类型的芳烃的选择性烷基化反应进行了研究，结果发现，对甲苯和氯苯的烷基化产物为对位产物......
触觉再现能够再现虚拟物体的表面纹理，在医学、军工、教育、娱乐等领域有重要的研究意义。本文研制一种基于电致振动效应的触觉再现......
基于盾构隧道衬砌结构三维有限元模型,分析千斤顶推力、注浆压力及土体摩擦系数3个因素对衬砌管片施工期受力特性的影响,并总结出3......
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对过共晶Al-20%Si合金进行变质和合金化处理,并在不同环境温度下进行摩擦磨损测试。结果表明,经过Cu-P中间合金变质后的初晶Si相和......
测试醋青纤维的力学性能和摩擦性能,采用扫描电子显微镜、红外光谱仪观察并分析纤维的微观形貌和结构;因醋青纤维是对腈纶分子级水......
重型板式给料机是矿山、冶金、港口、化工行业的重要设备，但在专业手册中，入料口的剪切阻力以及物料与裙板之间的摩擦阻力计算方面没......
为改善伺服电动缸中非线性摩擦环节对其运动控制性能的影响,文章从控制角度出发,利用摩擦补偿控制策略对系统中的摩擦力进行补偿,......
通过对碳纤维增强复合材料（CFRP）切削加工的研究,并结合深孔镗削的加工特点,研究了一种安装在镗杆悬伸末端,利用摩擦阻尼减振的特殊......
利用独立振子模型能量耗散机制和金属晶体的体积效应建立由基体（铁晶体）和对偶（铁晶体）组成的光滑接触平面干摩擦模型，以分子动力学模拟......
近年来提出的压缩感知（CS）理论指出，以低于香农定理规定的最低频率（2倍频）对稀疏信号进行采样，一样能够得到精确的信号重建结果，这种采样......
提出了一种在纯铜表面得到大面积亚微米细晶组织及进行表面硬化处理的新工艺.在T2紫铜表面,利用连续摩擦压扭过程中产生的剧烈剪切......
针对柴油机摩擦磨损过程中的主要摩擦副——缸套-活塞环,基于摩擦磨损机理对磨合过程中以接触面塑性变形为主的磨合时间进行了设计......
基于X.25／帧中继的VANGUARD路由器在民航领域有着广泛的应用，作为其接入高速业务主要使用的协议之一：帧中继协议。VANGUARD设备上的帧......
以棉纺牵伸理论为基础，全面论述了胶辊的结构、弹性和硬度与成纱条干均匀度、强力的关系；胶辊硬度与摩擦因数、钳口线宽度的关系；胶辊......
为了提高锭带的传递效率和节电效果，开发设计的M11型节电锭带两个面分别与滚盘和锭盘接触，与滚盘接触的主摩擦面因增加橡胶涂层厚度......
