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In this paper the persistence of bounded solutions to degenerate evolution equations of Sobolev-Galpern type is discusse......
Interfaces of microlayers, in most stalagmites from China, consist of opaque and organic materials. Observed with micro......
Copolymerization of styrene (St) with N-phenylmaleimide (NPMI) was studied with rare earth coordination catalyst Nd(naph......
The free surface waves of a molten low-melting point Sn-32%Pb-52%Bi alloy under the imposition of an AC and a static mag......
Frequency dependence of AC magnetic susceptibility over a wide range of frequencies:A new rock magne
A new measurement system has been developed for detecting frequency dependence of low-field alternating current(AC) magn......
To evaluate the effectiveness of weapon systems, the advantages and disadvantages of grey relational analysis and TOPSIS......
The Balfour Formation was subdivided into five members based on lithological variation that is characterized by alternat......
High oil prices are undoubtedly alarming leaders of businesses and governments worldwide.Political organizations place ......
Tin dioxide(SnO2) and La-doped(1%,5%,10% in mass ratio) SnO2 samples were prepared via a hydrothermal method. The as-pre......
Development and application of tumor-targeting magnetic nanoparticles FA-StNP@Fe_2O_3 for hypertherm
Modified magnetic starch nanoparticles (FA-StNP@Fe2O3) were synthesized by conjugating folic acid (FA-PEG-NH2) onto the ......
Secrecy Rate Analysis for Reconfigurable IntelligentSurface-Assisted MIMO Communications with Statis
In this paper, a reconfigurable intelligent surface (RIS)-assisted MIMO wireless secure commu-nication system is conside......
华蟾素是一种从蟾蜍中提取的化合物,是一种传统的中草药,已被证实在癌症治疗中具有疗效.华蟾素注射液广泛应用于中国中晚期肝癌患......
,Transcriptomic Analysis of Differentially Expressed Genes and Alternative Splicing Events Associate
Phalaenopsis equestris is an obligate crassulacean acid metabolism (CAM) plant with high oamental and economic value.CAM......
Determination on the Main Chemical Components and Antibacterial Activities of Volatile Oil from Datu
[Objective] To determine the main chemical components and antibacterial activities of volatile oil from Datura stramoniu......
Secrecy Rate Analysis for Reconfigurable Intelligent Surface-Assisted MIMO Communications with Stati
In this paper,a reconfigurable intelligent surface(RIS)-assisted MIMO wireless secure communication system is considered......
【目的】蜜蜂是一种重要的经济性社会昆虫,也是一种重要的传粉昆虫,对农业生态系统平衡与植物多样性具有重要贡献。为防治农作物的......
在淡色库蚊的乙酰胆碱酯酶ace1基因上发现了1个可变剪接，与实验室敏感株1个个体的ace1基因的编码区相差了24个碱基，导致所编码的成熟......
详细研究了Sn与An的群图,修正了《群图的基本理论及置换群图的构造》一文中某些错误的结论,并用计算机作出了S4与A4的部分群图。......
演绎推理是形式化验证中一种重要的方法,具有可以处理无穷状态系统的优点.本文研究与实现关于交替式下推系统中可达性的证明,该系......
Helicobacter pylori(H.pylori)successfully colonizes thehuman stomach of the majority of the human popula-tion.This infec......
共价闭合的环状RNA(circular RNA, circRNA)主要是由真核生物中数千种基因的外显子的前体mRNA的3’和5’端反向剪接而成,是区别于......
本研究针对舰船主体材料907A钢所处的间浸海洋环境,在模拟20%间浸率工况下开展了6个周期干湿交替腐蚀条件下的阴极保护参数研究。......
一个新的单体4－叔丁氧羰氧基－3－三甲硅基苯乙烯已以较高产率被合成（经过七步反应，基总产率为50．1％以上）。该单体的均聚物和二氧化硫的交替......
以公鸡红血细胞为材料,研究了不同的细胞密度、成串脉冲电压强度、频率和时间及融合脉冲电压强度、宽度和次数等因素对细胞电融合......
DOI：10.16660/j.cnki.1674-098X.2017.25.233 摘 要：假设检验是工科概率统计教学过程中学生反映比较难懂的章节。本文就假设检验......
针对交替方向隐式时域有限差分方法（ADI-FDTD）数值色散严重的缺点,提出了一种低数值色散的各向同性ADI-FDTD方法.该方法在ADI-FDTD方......
房室传导径路中由于不同水平（如近端和远端）受损程度不同，可产生不同程度的复合性房室阻滞，使心电图变得复杂。本文报道两例复合性Ⅱ度......
目的探讨热籽感应加温对荷瘤小鼠的治疗效果。方法50只接种B16黑色素瘤的C57／BL小鼠随机分为两部分，第一部分7只，植入热籽后在磁场中......
目的探讨053选择性剪接异构体△133053的mRNA在胃癌、慢性萎缩性胃炎和慢性浅表性胃炎组织中的表达及意义。方法采用巢式逆转录多......
根据交变磁场测量信号的特点,利用小波变换能表征信号突变特征这一优势,采用多分辨分析方法提取缺陷信号的特征量,并在此基础上提......
碳纤维具有优异的纤维性能,因此对其需求持续增加。目前,碳纤维大部分由聚丙烯腈制备获得,小部分则通过沥青制得。但这些原材料也......
为了明确斜发沸石在干湿交替稻田中的应用潜力,运用离心机法测定不同斜发沸石处理下稻田土壤水分特征曲线,分析了斜发沸石对土壤持......
用两个耐低磷能力差异显著的烟草悬浮细胞系,研究了缺磷胁迫对交替呼吸途径的影响及其与活性氧积累的关系。牛津细胞耐缺磷胁迫能......
Existence of Solutions for Fractional Differential Equations Involving Two Riemann-Liouville Fractio
In this work, we study existence and uniqueness of solutions for multi-point boundary value problem of nonlinear fractio......
针对∫a^b sinx/x dx）和∫a^bsinx^k dx在初等函数范围内不能积分的问题,通过对正弦函数周期性的深入研究,利用其在周期内正负交错......
文章研究一种智能控制高速复合消磁方法,通过磁敏传感器阵列自动检测各种口径铁磁质工业管件的表面剩余磁场的强度、极性和节距,为......
由于微型件结构上的特点，微结构注射充满型腔的能力要比常规注射差得多。通过对塑料熔体在型腔中的流动性分析和模具温度控制方式的......
混源油的定量判识是当前石油地质地球化学研究的热点与难点。以塔里木盆地塔河油田奥陶系中聚集的混源油为典型研究实例,通过地质......
以邻苯二酚为底物,研究了交变磁场对苹果多酚氧化酶(PPO)反应动力学的影响。结果表明:苹果PPO褐变反应动力学符合米氏方程所描述的......
目的探讨人类免疫缺陷病毒(human immunodeficiency virus，HIV)抗体检测中酶联免疫加快速试验替代策略的可行性。方法采用酶联免疫......
采用RT-PCR和RACE相结合的方法，从南方鲇分离到Vasa基因的两个亚型scVasa和scVaga-s。它们是同一基因在5′端经选择性剪接的产物，其c......
以当地政府、保护区管理机构和周边社区居民作为保护区社区共管中的主要利益相关者,运用完全信息动态博弈模型,对其在社区共管项目......
本文提出了计算酸式盐和ＭＢ型弱碱弱酸盐溶解［Ｈ＾＋］精确解的新公式和迭代判据，一般迭代１￣２次便可求出［Ｈ＾＋］的精确解。......
通过持续农业产生的历史原因分析，阐述了各种农业思潮的产生根源，提出了现代农业的四个发展阶段：常规农业鼎盛阶段，回归阶段，替代阶段和......
Previous work illustrated that glucose oxidase (GOx) could be deposited on conducting substrates using asymmetrical alte......
An initial investigation replacing fish meal with a commercial fermented soybean meal product in the
The inclusion of PepSoyGen (PSG), a commercially-available fermented soybean meal product, was evaluated with juvenile r......
本文提出了一种光线跟踪Bezier曲面的求交算法。该算法通过建立曲面树形存贮结构及网格面的包围盒,实现光线曲面片的相交测试;曲面......
随着油田开发的不断进行,多数老油田进入开发后期,增油潜力日渐降低。一些如低渗、潜山等难动用储量油藏的重要性逐渐凸显。河口地......
Chlorinated organic residual liquid is produced from the distillation process of new refrigerants production. It is diff......
