Prec相关论文
Proteases have a fundamental role in maintaining physiological homeostasis,but their dysre-gulation results in severe ac......
Long-Term Improvement in Precautions for Flood Risk Mitigation:A Case Study in the Low-Lying Area of
Local actors appear as inseparable components of the integrated flood risk mitigation strategy in Vietnam.Recognizing th......
Al precipitates as well as cavities (or open-volume defects) are known for their ability to getter impurities within Si......
A two-year study in a typical red soil region of Southern China was conducted to determine 1) the dry deposition veloci......
Spatial characteristics of changes in temperature and precipitation of the Qinghai-Xizang (Tibet) Pl
Based on monthly mean temperature and precipitation, the changing processes and tendencies of temperature and precipita......
At the mention of Suzhou, people usually think of bridges spanning flowing water, elegant classical gardens, rich Wu cu......
Long-Term Improvement in Precautions for Flood Risk Mitigation:A Case Study in the Low-Lying Area of
Local actors appear as inseparable components of the integrated flood risk mitigation strategy in Vietnam. Recognizing t......
Projection on precipitation frequency of different intensities and precipitation amount in the Lanca
In the Lancang?Mekong River basin (LMRB), agriculture, dominating the local economy, faces increasing challenges in wate......
A novel process for synthesizing nano-ceramics powders, named mechanical & therm al activation processing, is discussed ......
Monodispersed spheroidal SnO2 nanocrystals with the grain size of 8-30 nm were synthesized by the precipitation method u......
慢性乙型肝炎患者干扰素治疗与ＨＢＶＰｒｅＣ基因ｎｔ１８９６突变严新民华映坤董虹高建梅张平张丽平云南省自然科学基金资助课题作者单位：６５００３２昆明，云南省人民医院......
The development of the 6-layered cerebral neocortex is one of the most important events during nervous system developmen......
Behavior requirement expression and its satisfiability verification for composite Web services is one of the ongoing iss......
Thin alumina coatings were prepared on carbide tools to enhance their wear-resistant ability by dip coating from an alu......
This paper investigates the transverse vibration of a simply supported nanobeam with an initial axial tension based on t......
Detecting putative recombination events of hepatitis B virus: An updated comparative genome analysis
An updated collection of 791 human hepatitis B virus (HBV) genomes and 38 non-human primate HBV genomes was analyzed for......
Molecular electronegativity in density functional theory (II) --Direct calculation of group electron
On the basis of a more precise expression of the atomic effective electronegativity deduced from the density functional......
The Schiff bases bearing ferrocenylphenyl and diferrocenylphenyl groups were synthesized by the reactions of m-ferroceny......
In order to solve the drawback of poor bioavailability by the oral route and infusion-related side effect for Amphoteric......
The effect of stress on the microstructure and properties of an Al-Cu-Mg-Ag alloy under-aged at 165 ℃ for 2 h during th......
The microstructures and mechanical properties of H13 mandrels made by Baosteel and foreign companies were investigated i......
137 Cs which has high fission yield about 6.14%, long half-life, and 661.7 keV γ-ray exists in 1AW, nuclear plant liqui......
Microstructure and Wear Resistance of in situ NbC Particles Reinforced Ni-based Alloy Composite Coat
The in situ synthesized NbC particles reinforced Ni-based alloy composite coating was produced by laser cladding a precu......
The corrosion behavior of 5A05 aluminum alloy in 3.5 wt.%NaCl solution was investigated by scanning electron microscopy(......
The second-generation single-crystal superalloy DD6 with [001] orientation was prepared by screw selecting method in the......
The effects of adding the alloy element Sc to Al alloys on strengthening, recrystallization and modification of the grai......
Quantitative description of infrared radiation characteristics of preflawed sandstone during fractur
Previous studies show that infrared radiation temperature (IRT) abnormalities are always accompanied by the crack develo......
设计了一种适用于融合GPS、DR两种不同导航输入信息的Kalman滤波器,能够将GPS导航解、GPS伪距观测值、GPS多普勒观测值以及DR原始......
AIM:To elucidate the clinicopathological characteristics and prognostic factors of gastric stump cancer(GSC).METHODS:The......
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......
一、院况简介 本院创建于1955年。现有职工470人，具有中、高级职称的226人，博士、硕士生28人。主要从事地质找矿、新材料研发、污......
利用太赫兹光谱技术进行了土壤中重金属铅含量检测研究,太赫兹光谱是一种拥有多种独特性质的新型安全检测技术,前期实验结果证明该......
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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......
目的了解浙江省台州市农村地区妇女宫颈癌及癌前病变的发病现状,为该地区宫颈癌防治提供依据。方法于2012年6-12月对台州市海门、......
Evolution of fracture permeability due to co-colloidal bacterial transport in a coupled fracture-ski
A numerical model is developed for investigating the evolution of fracture permeability in a coupled fracture-matrix sys......
In recent years JSC "Krastsvetmet" has successfully developed the production of chemically pure compounds of precious me......
2020年初新型冠状病毒肺炎所引发的重大公共卫生风险,使隔离人员、信息畅达成为防控疫情、维护秩序稳定、防范次生风险的首要任务......
Quantitative description of infrared radiation characteristics of preflawed sandstone during fractur
Previous studies show that infrared radiation temperature(IRT)abnormalities are always accompanied by the crack developm......
通过对国外相关技术的深入调研,分析论述了一种新型的柔性播种技术,该技术通过采用特种排种器、步进电机匹配编码器、电控变速箱、......
利用修正的短轴承理论模型对转子-轴承系统在各种转速和不平衡量的情况下进行了理论与数值分析.结果表明：在某些条件下，转轴系统有可......
研究了从低品位氧化锰矿经还原焙烧、硫酸浸出得到的含钴镍原料液中回收钴镍的工艺。结果表明：控制原料液初始pH值低于2有利于防止......
为了提高锁相环锁定速度,在研究快速捕获技术基础上提出一种新型的数字鉴频器的设计方法,然后对一个频率范围在1-8 GHz、频率步进......
鉴于进动周期、进动角等微动参数的提取有助于解决弹道中段弹头、诱饵的识别问题,以中段旋转对称锥体弹头为研究对象,建立了锥体目......
采用三元微观相场动力学模型，模拟研究了973，1173，1253K时效温度下，Ni75Al15Fe10合金中γ’相的早期沉淀过程。通过对该合金原子显微形......
云南矿产资源开采的环境放射性问题包括铀矿开采的环境放射性问题和其他矿种开采的环境放射性问题。应加强云南矿产资源的放射性水......
建立了二维金属切削中两侧方向毛刺生成的切削模型,运用平面应力——应变理论进行了深入的分析,找出了影响两侧方向毛刺的主要因素......
目的探讨微小染色体维持蛋白5（MCM5）在胃癌、癌前病变及正常胃黏膜组织中的表达及对肿瘤生物学行为的影响。方法采用免疫组织化学SP......
本文就希腊2002年制定并实施的《文物法律38条》等文化遗产保护法律,结合灿烂的希腊文化,通过对雅典卫城保护、新卫城和国家考古博......
[目的]分析铁山水库饮用水水源地的降水演变规律,为流域水资源利用以及铁山水库的调度运行提供依据。[方法]运用线性回归、滑动平......
