shal相关论文
目的评估Ex-Press引流器植入术治疗开角型青光眼的效果。方法回顾性病例对照研究。分析郑州市第二人民医院2016年5月至2017年4月开......
Numerical models with hydrostatic pressure have been widely utilized in studying flows in rivers, estuaries and coastal ......
In order to examine the intensity of surfi-cial sediment resuspension in Lake Taihu, a large shallow lake in eastern Chi......
The present landforms may be expressed as a function of structure, proceesand stage. It is admittedly true that in most ......
With the addition of a thin Zn interlayer,2.4 mm thick Mg-3Al-1Zn alloy sheets were friction stir spot welded(FSSW) usin......
Apparently, the statement that the metallogenic science made a good progress in the last decades will raise no objectio......
The immature calcareous shale in the south slope of Dongying sag, Jiyang depression, plays a significant role in immatu......
Geochemistry of khondalites from the central portion of North China craton (NCC):implications for th
Within the high-grade metamorphic basement, the central portion of North China Craton (NCC), a group of Neoarchean khond......
Paleoproterozoic Sediment-hosted Gold Deposits in Eastern Liaoning,Northeast China: Implications for
Gold deposits in eastern Liaoning, northeast China are hosted in the middle and upper parts of a Paleoproterozoic volcan......
Ruthenium-ion-catalyzed oxidation (RICO) has been used to investigate asphaltenes from three oils with the same origin i......
Abundant well-preserved large articulated sponge fossils and isolated spicules have been reported from the Early Cambria......
The ore genesis model for barite deposits in east Guizhou Province has been in dispute and the major debate focuses on w......
A pelvic skeleton, recognized as a large terrestrial bird in the field, was recently collected by our paleomammalo-gist ......
Sedimentation of fine-grained deposits on coastal zones and continental shelves are im- portant because of the associati......
Samples of 21 soil profiles and 165 top soils from an area of approximate 1.5 km2 on red-earthy hill landscape were col......
Lithologic Boundaries in Permian Post-glacial Sediments of the Gondwana-affinity Regions of China:Ty
In Southwest China,Gondwana-affinity Permo-Carboniferous deposits are known to occur in the Northern Himalayas,the Lhasa......
The Ordos Basin is a large-scale sedimentary basin in northwestern China.The hydrostratigraphic units from bottom to top......
The identification of sequence boundaries is the key point for sequence stratigraphicclassification.Both the higher-ord......
With the rapid and continual growth of national economy, the gap between oil demand and supply keeps widening in China, ......
On Jan.31 of 2010,the Suining earthquake occurred at Suining City whch is located the center of Sichuan Basin.It is unus......
Sulfur and Oxygen Isotopes of Sulfate Extracted from Early Cambrian Phosphorite Nodules: Implication
Phosphorite nodule beds are discovered in the black shale of basal Niutitang Formation throughout the Yangtze Platform i......
This paper deals with the characteristics of strong earthquakes in the North-South seismic belt. Themigration and jumpi......
-There is a wind-caused upwelling along the east coast of Guangdong in summer. Its central position is above the depth ......
- Based on the linear tidal wave theory and ignoring the influence of friction effects, two mathematical models have be......
COMPOSITION, CARBON ISOTOPE CHARACTERISTICS AND THE ORIGIN OF COAL-BED GASES IN CHINA AND THEIR IMPL
The compositions and the carbon isotope characteristics of methanes of the coal-bed gases from 14 coal mines and 3 deep......
Classification of seamount morphology and its evaluating significance of ferromanganese crust in the
Using the SeaBeam technology, the morphology of seamount and its relation to the formation of cobalt-rich crust in the c......
Heat flow pattern,base of methane hydrates stability zones and BSRs in Shenhu Area,northern South Ch
Using the collected 433 heat flow values,we estimated the bases of methane hydrate stability zone (BHSZ),in northern Sou......
Organic-walled Microfossils from the Early Middle Cambrian sediments of the Holy Cross Mountains,Pol
An association of organic-walled microfossils consisting of filamentous cyanobacteria, algal coenobia and acanthomorphic......
The action of wind on the sea surface plays an important role in the noise generation mechanism.Sea surface wind speed c......
Characterization of root architecture in an applied core collection for phosphorus efficiency of soy
In the present study, we constructed an “ap- plied core collection” for phosphorus (P) efficiency of soy- bean germpla......
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......
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......
四川盆地南部下志留统龙马溪组存在着一套厚度介于30~50 m的富有机质页岩(TOC>2%),但在开发过程中不同层段的页岩气产量差异巨大,......
在全球油气需求和价格低迷的背景下,全美第二大天然气生产商切萨皮克能源公司于2020年6月28日申请破产重组,暴露出美国页岩油企业......
我国中、新生代陆相断陷咸化湖盆广泛发育含盐泥页岩,蕴藏着大量页岩油资源。页岩油“甜点”发育与有机质富集密切相关,但含盐泥页......
总剂量辐射效应会导致绝缘体上硅金属氧化物半导体场效应晶体管(SOIMOSFET)器件的阈值电压漂移、泄漏电流增大等退化特性。浅沟槽......
目的研究注射用刺五加对小鼠全脑缺血及对大鼠不完全脑缺血的保护作用.方法小鼠尾静脉给予饱和氯化镁溶液0.1 mL,形成全脑缺血模型......
对２块随加氢反应器运行了近５万ｈ带焊缝的２１／４Ｃｒ－１Ｍｏ挂片试板，分别在４４０℃和室温下进行了裂纹扩展速率的测试，并利用测试结果对加氢反应器筒体进行了疲......
近几年随着国内页岩气井开采工作的不断加深,开采的难度也在不断加大。而连续油管作业技术作为开采作业中不可缺少的关键所在,研发......
针对新庄油田南三块条带状、边水活跃、高深透率稠油油藏水平井固井完井的特点，开展了水平井变密度射孔模型、孔密优化设计等项研究......
针对江苏新生代脆性泥页岩破碎地层易引起井壁失稳的特点,在室内实验的基础上研制出了适合钻进该地层的钻井液体系.6口井的现场实......
游离相天然气主要包括置换式运移并聚集的常规储层气、活塞式运移并聚集的根缘气和兼具上述两种运移模式并具有复杂运聚机理的页岩......
低渗透、致密油气及页岩油气在全球能源格局中占据愈发重要的地位,面临动用难度大、产量递减快、采收率低、开采成本高等亟需解决......
以成都地铁区间隧道的工程为例，阐述了富水砂卵地层奈件下盾构机通过浅覆土路段地层破坏机理，同时用有限元软件plaxis进行了数值模拟......
结合工程实例,对大跨平顶直墙隧道浅埋暗挖施工中易出现的问题进行讨论,并针对相应的问题提出了处理措施.......
论述了针对敏感信息的企业情报安全工作的必要性，从理论上探讨了敏感信息带来情报安全隐患的原因，提出了减少敏感信息对情报安全危害......
海底天然气渗漏可以指示沉积层中的烃类聚集带，渗漏出的大量气体（主要是甲烷）还可能影响全球的气候变化。此外，与海底渗漏相关的浅层气......
为了给页岩气水平井地质导向钻井目标层的优选提供地质依据,以四川盆地威远地区下寒武统筇竹寺组页岩地层为研究对象,提出了测井多......
根据研究工程、工业废水及生活污水的水环境影响的需要，提出一个平面二维水流－水质有限体积法及黎曼近似解模型。在无结构网格上对偏......
