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Hydrogen absorption-desorption cycle decay mechanism of palladium nanoparticle decorated nitrogen do
As a hydrogen storage material,palladium nanoparticle decorated nitrogen doped graphene (Pd/N-rGO) has drawn much attent......
Objective To explore the multiple risk factors for family lifestyle of children with congenital heart defects(CHDs)in Sh......
Si-rich silicon oxide films were deposited by RF magnetron sputtering onto composite Si/SiO_2 targets. After annealed at......
Growth and characterization of GaAs/In_χGa_(1-χ)As/GaAs axialnanowire heterostructures with symmetri
We report on the Au-assisted vapour-liquid-solid(VLS) growth of GaAs/InxGa1-xAs/GaAs(0.2 ≤ x ≤ 1) axial double-heteros......
Global localization of in-pipe robot based on ultra-long wave antenna array and global position syst
A global localization system of in-pipe robot is introduced in this paper.Global position system(GPS)is applied to moni......
AIM: To assess our management of patients suffering from missile injuries to the maxillofacial region.METHODS: From Dece......
This study is to assess the prevalence rates spatial pattern of neural tube defects with geographic information system a......
A numerical model on stress assessment of a defective elliptic gathering tube used in the heat recovery boiler of a pyro......
We developed tests of sperm-oocyte interaction: sperm-zona binding, zona-induced acrosome reaction, sperm-zona penetrat......
SiC granule films were fabricated onto porous glass substrate by RF-magnetron sputtering. Photoluminescence (PL) mea-sur......
This paper reports that Eu-doped ZnO films were successfully deposited on silicon (100) by radio-frequency magnetic sput......
Influence of Si co-doping on magnetic, electrical and optical properties of Ga_(1-x)Mn_xN film grown
A detailed study is presented on magnetic, electrical and optical properties of Ga 1-x Mn x N: Si film grown by metal or......
Electrochemical measurement and chemical immersion test are employed to investigate the inhibition mechanism of Na_2MoO_......
The geometry of each worn part is unique,so that a repair has to be tailored to each part individually. To ensure that a......
It is a complicated problem for cold-rolled strip to improve asymmetric strip shape in strip production.A roll system an......
The effect of Cu,Fe and Ni on high-temperature mechanical performance and fatigue properties of ZL114A alloy was studied......
During long-term operation of the reactor,the stack of large structural components made of an iron-based alloy appears r......
Metallic glasses have aroused considerable interest in the past decades because they exhibit fascinating properties. Fir......
Characterization of Microstructure and Stability of Precipitation in SIMP Steel Irradiated with Ener
A type of home-made reduced activation martensitic steel, high silicon(SIMP) steel, is homogeneously irradiated with ene......
Advances in foetal imaging have increased our detection rate of craniofacial abnormalities in utero. Nasal glioma is a r......
[目的]探讨不同症型肠易激综合征(IBS)患者血清中白细胞介素-1β(IL-1β)、IL-10、IL-18和肿瘤坏死因子-α(TNF-α)的表达变化及在......
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
提出一种阈值均匀局部二值模式(TULBP)算法。该算法使用均一模式以减少特征值的数量,在保证特征描述准确性的同时,可大大加快计算......
太阳电池的缺陷往往限制了其光电转化效率和使用寿命.利用光致发光原理获取晶体Si太阳电池的荧光照片,用以诊断其缺陷.外界的光能......
为提高细号纱成纱质量，减少细号纱织物布面疵点，对USTER QUANTUM2型电子清纱器的清纱参数进行了优化。指出：相同的纱疵在不同经纬密度......
广东惠州液化天然气（LNG）电厂3台燃气轮机发电机在检修时都出现了转子直流电阻变大的缺陷，采取处理接触面的方法对其进行了处理，使发电......
根据燃烧环境中高装填固体推进剂药柱内应力的分布特征，提出了药柱内腔表面的两种典型裂纹，即横向表面裂纹和纵向表面裂纹，并分别采用......
为解决电子警察系统中路口设备故障报警问题,通过将路口设备回传到中心服务器文件的文件时间特征进行比较,判断路口设备是否存在故......
为了设计高品质、高性能的光学滤波器和光开关,利用传输矩阵法通过数值计算模拟的方式绘制1维光子晶体的透射能带谱,研究和分析了......
使用RLE方法,能够快速提取印刷品缺陷的多种特征。针对不同缺陷特征,使用基于径向基神经网络的方法,依据缺陷目标的特征,对缺陷进......
本文通过对模拟铝合金材料腐蚀缺陷的红外热波无损检测实验,采用基于最小二乘法的去除拟合背景方法、脉冲相位法对实验结果进行处......
超声波检测技术作为一种有效的局部放电检测技术,目前已在气体绝缘全封闭组合电器(Gas Insulated Switchgear,GIS)设备缺陷分析中......
利用边界条件，推导出sH波在多层介质系统中的转移矩阵，利用移矩阵法研究了SH波在一维声子晶体中禁带和缺陷模的特征。得出了sH波的禁......
<正> 碲镉汞(Hg_(1-x)Cd_xTe,或称MCT),是60年代问世的一种性能优良的红外探测材料,它的电性能在很大程度上取决于电子结构中的缺......
通过高能喷丸处理，在Q235低碳钢的表面得到了一层约20μm厚的纳米晶组织，然后使用金属蒸汽弧离子注入机（MEVVA）对表面纳米化处理前后的......
大多数缩孔缩松判据都忽略了液态金属静压力的影响,因此对液态金属静压力较大的铸件的缩孔缩松预测不够准确.针对这一问题,通过对......
某大坝右岸覆盖层最大深度达到420m。工程运行中发现右岸渗漏量较大，且右岸山坡右岸地下水位整体偏高，局部山坡和排水廊道发生渗透破......
目前我国企业所得税制由内资企业所得税和外资企业所得税两套制度构成.文章对这两套制度的缺陷和在应纳税所得额和税收优惠等方面......
针对抛物型初边值问题提出了一种新的方法——RK-DMG法.这个方法有机地结合了Runge-Kutta法和剩余校正多层网络方法.从而具有速度......
GaN基高电子迁移率晶体管(HEMT)因具有高输出功率密度、高工作频率、高工作温度等优良特性,在高频大功率等领域具有广泛应用前景。......
期刊
对经X射线采集到的BGA焊点缺陷图像进行预处理,传统的迭代阈值和灰度拉伸方法对灰度图像很难得到满意的结果,误分割很常见,针对BGA......
在结构，离子电导率和包含稀土元素元素的不同结构的氟化物系统的绝缘的性质之间的关系是 presented.Superionic 传导性，由氟化物离子......
利用光子晶体的光子禁带和体积小的优点,在光子晶体中适当设计线缺陷和点缺陷,使这些缺陷会形成波导和微腔。根据耦合模理论,波导......
将基于t算子的进化规划算法（tEP）应用于匹配追踪方法以提高计算效率并降低复杂性，利用匹配追踪方法分解一根含有不同深度槽陷的钢管导......
简要总结了长输管道对接焊缝超声检测中存在的难点及解决方法。详细叙述了长输管道对接焊缝超声检测工艺，以及常见缺陷的判别方法。......
通过采用不同探头对同一零件进行水浸超声检测和缺陷评定结果的对比，分析了水浸探头的声场参数对缺陷评定结果的影响。试验结果对日......
通过调整横波超声波检测工艺参数研究了其对6063铝合金焊缝检9n,4效果的影响，分析了缺陷反射回波波幅随超声波参数的变化关系。试验......
目的:通过对负压封闭引流技术(VSD)与传统换药(CDC)两种方法治疗四肢软组织缺损创面医疗成本进行分析,为医疗医疗决策提供理论依据......
为了检验陡波试验对于发现合成绝缘子内部故障的有效性，分别模拟绝缘子内部不同部位有导电性、半导电性通道，小气泡长气泡和芯棒与护......
