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Investigation of the combustion deterioration of an automotive diesel engine under transient operati
With increasingly stringent emission regulations and demand for fuel economy by the public,the combustion and emission p......
Long delays and poor real-time transmission are disadvantageous to well logging networks consisting of multiple subnets.......
Development of materials design tool and its application in Pb-free micro-solders in electronic pack
A materials design tool for developing Pb-free soldering alloys in electronic package was developed based on comprehensi......
Researches were made of different continental-margin and intraplate basin systems in the Qinling mi-croplate in terms o......
The paper deals with the coalbed methane gas-bearing characteristics such as the gas content, theoretical gas saturatio......
In this paper, the principle of discharge-based pulsed I–V technique is introduced. By using it, the energy and spatial......
Mechanism of oxide thickness and temperature dependent current conduction in n~+-polySi/SiO_2/p-Si s
The conduction mechanism of gate leakage current through thermally grown silicon dioxide(Si02)films on(100) p-type silic......
Concentration level and distribution of polycyclic aromatic hydrocarbons in soil and grass around Mt
High mountains may serve as a condenser for persistent organic pollutants. In the present study, soil and grass samples ......
Hydrocarbon regeneration of marine carbonate source rock was simulated with thermal experiments in a laboratory. The res......
RNA interference blocking the apoptosis in HEK293 cells induced by overexpression of alpha-synuclein
BACKGROUND:Overexpression ofα-synuclein can induce cell apoptosis.RNA interference(RNAi) may block specific gene functi......
Spontaneous electrochemical noise (EN) can be a rich source of information concerning the processes simultaneously occu......
Dioxygen Affinities and Catalytic Oxidation Performance of Co (II) Complexes with Phenol Ether Bridg
The oxygenation constants and thermodynamic parameter (?Ho, ?So) of a series of novel Co (II) complexes with phenol ethe......
The diamond-to-graphite transformation at diamond-stable conditions is studied by temperature gradient method (TGM) unde......
The isotopic composition of 15 natural gas samples, which were collected from northern Jiangsu Province, south Songliao,......
Thirty sediment subsamples were recovered from the Iheya North hydrothermal field(with an average of 38 m away from the ......
According to Shanghai Apparel Association, apparel retail sales volume in Shanghai top 10 department stores was 0.729 mi......
文章考虑风险与收益的时变性,提出了变系数市场模型以便更好的捕获市场风险变化因素,建立了半参数alpha策略模型,并以沪深300指数......
通过野外勘查与试验，认为三眼峪泥石流沟是一个高频泥石流沟，历史上发生多次重大泥石流灾害事件，多期泥石流堆积物在沟道及沟口上下超......
研究了大果红山茶（Cammellia magnocarpa）果实发育过程中的油脂积累规律。结果表明,大果红山茶果实鲜重的增长主要发生在前期,而油脂......
针对用于某电动校车的两挡行星变速器在换挡过程中出现油泵供油不足的情况,采取了增加蓄能器方式来实现对供油的补充,并对比分析了......
为探索热区环境下冬播玉米物候发育的温度效应,建立具有较好解释性的冬玉米物候发育模拟模型。基于云南陇川、瑞丽、芒市三试点分......
主要介绍了在挤压型材模具的分流组合模中，挤压型材壁厚较薄、型芯呈不规则形状，且型芯数量较多的上模型芯与下模型腔的整体加工的方......
研究了污水处理下红树林对Cu、Pb、Zn、Cd等4种重金属元素的吸收、累积、分布和循环。结果表明，该林地表层土壤4种元素的储晨关系为......
The selective toxicity of the mitochondria-specific cationic fluorescent dye rhodamine 123 (Rh-123) on He La cells in cu......
Ｖｅｒａｐａｍｉｌ（ＶＥＲ），ａｃａｌｃｉｕｍｃｈａｎｎｅｌｂｌｏｃｋｅｒ，ｈａｓｂｅｎｆｏｕｎｄｔｏｅｆｅｃｔｉｖｅｌｙｒｅｖｅｒｓｅｍｕｌｔｉｄｒｕｇｒｅｓｉｓｔａｎｃｅｉｎｔｕｍｏｒｃｅｌｓｔｈｒｏｕｇｈｃｏｍｐｅｔｉｔｉｖｅｃｏｍｂｉｎａｔｉ.........
为了探明广东南雄烟区砂泥田、牛肝土和紫色土3种主要植烟土壤的供氮特性及相应土壤中种植烤烟的氮素吸收规律,采用田间试验探讨了......
Soil drought occurrence during dry season has been the main constraint, besides prolonged flooding during rainy season, ......
[目的]探讨基团种类、含量对丙烯酸酯类聚合物膜的亲水性及其对尿素缓释性能的影响.[方法]合成了带不同侧基、不同侧基含量的丙稀......
分析了涡轮流量传感器的工作特性曲线和误差计算方法,采用累计流量计算示值误差来修正分段仪表系数的方法,在标准法标定装置上对液......
<正> 一 引言 煤中含有多种微量元素,其中有一些是易对环境造成危害的元素。过去,人们只重视煤中有机排放物的研究,而忽视了无机物......
以扬稻6号和武运粳7号为材料进行盆栽实验，研究了Cd胁迫对水稻植株生长的影响，结果表明：（1）Cd胁迫对水稻植株的分蘖力、株高、植株干物......
Influences of enhanced ultraviolet radiation (UV-B,280-315nm) on accumulation and cycling of Mg and Zn of wheat field ec......
研究目的：岩溶的存在会使连拱隧道周围岩土体结构发生变化,以致岩土体强度降低,在列车荷载反复作用下可能导致基底累积变形超限,影......
股东表决权的行使是股东参与公司管理的重要手段，也是股东对公司管理者进行有效制衡的重要途径。我国公司法对股东表决权的诸多具体......
根据对哀牢山北部徐家坝地区木果石栎林化学元素的吸收、分布及其生物循环的研究结果表明，碳素在树干中含量最高，而其它元素的含量均......
为提高油液混合动力系统挖掘机的节油效果及操控性能，对某21t油液混合动力挖掘机进行了参数匹配仿真研究。基于元件样本曲线及试验......
对研究区嘉陵江组沉积背景认识的基础上，通过岩心观察、岩石薄片确定了不同类型的储集岩和储集空间，得出本地区储层岩石类型和储渗空......
塔里木盆地库车前陆区主要有3期烃类包裹体,分别记录了油、凝析油气和干气的充注历史,对应的地质时间分别为晚第三纪康村早、中期(......
通过盆栽实验探讨不同铬污染水平农田土壤施加零价纳米铁对不同时期青梗菜吸收土壤铬的抑制效果。结果表明,零价纳米铁能够有效抑......
川藏公路二郎山隧道是国家'九五'重点建设工程.长期以来龙胆溪滑坡影响川藏公路这一交通大动脉,由于紧邻公路的滑坡体规模......
基于钢筋混凝土框架柱试验研究结果和恢复力模型,对国际上较常用的3个震害指数计算模型进行计算.通过对3个不同轴压比框架柱试件基......
通过对青藏铁路清水河段片石护坡路堤和普通路堤实体工程进行的地温监测,对比分析了两种路堤体内及基底的温度特性,分析结果表明采......
通过研究典型岩溶峰丛洼地常见饲料植物对矿质元素Ca、Mg、K、P、Fe等的富集特征发现，岩溶峰丛洼地中元素在饲料植物各器官内的分布......
高分辨雷达（HRR）照射目标时，其目标散射模型不是简单的点目标，而是在距离维上呈现出多个强散射点。文章研究了高分辨情况下目标的散射......
提出一种基于点云数据的NURBS曲面重建方法，针对数据点的分布不均匀性，进行非均匀B样条曲线控制点的反算，通过累积弦长法构造非均匀节......
为了研究氮铅交互作用对小桐子幼树生长及重金属Pb累积的影响,设计3种施N水平(N0:0;N1:300 mg;N2:600 mg)、3种土壤Pb污染水平(Pb0......
本文多个方面简论了综合能力培养对教师提出的更新、更高的要求，这些要求是每一位教师努力的方向和目标。......
本文从系统弹性模量着手研究了闭式非驱动系统在遭受冲击负载时，系统冲击产生的原因及其解决方案。采取在回路中添加蓄能器的方法来......
