Permi相关论文
...
INTRODUCTION About half a century ago, P. Fuchs collected a rich Triassic fauna from Sitzishan, Tsin-ngai, Kueichou. Th......
Published monthly in hard copy by Chinese Institute of Electronics and online by IOP Publishing,Temple Circus,Temple Way......
Published monthly in hard copy by Chinese Institute of Electronics and online by IOP Publishing,Temple Circus,Temple Way......
Parasitic effects of air-gap through-silicon vias in high-speed three-dimensional integrated circuit
In this paper,ground-signal-ground type through-silicon vias(TSVs) exploiting air gaps as insulation layers are designed......
Photonic band gap from periodic structures containing anisotropic nonmagnetic left-handed metamateri
We demonstrate a photonic band gap(PBG) from one-dimensional(1D) periodic structures created by a double-layer unit cell......
Ultrasonic wave testing was applied to investigate the quality and weathering status of rock specimens obtained in two b......
Properties of photonic band gap and light propagation in one-dimensional multicomponent photonic crystal have been studi......
Genetic relationship between unroofing of the Emeishan large igneous province and the iron-polymetal
This paper reports an integrated study of in situ U-Pb geochronology and elemental geochemistry of zircons from the Xian......
The detailed structures of the volcanic edifice and plumbing system of the early Permian Tarim flood basalt were investi......
The primary tectonic setting of dyke swarms,especially those formed in the pre-Cambrian era,are under controversy(Peng e......
Electrical capacitance tomography (ECT) has been used for more than a decade for imaging dielectric processes. However, ......
AIM: To determine peri-operative, oncological, functional and safety profiles of extraperitoneal robot-assisted radical ......
重庆北碚地区晚二叠世长兴期地层出露良好，剖面位于北碚代家沟东北部，经过详细调查研究，在厚度为110．5m的长兴组石灰岩地层中发现有丰......
鄂尔多斯盆地西南部二叠系盒8下段为天然气主力产层,为了明确该区储层特征及控制因素,通过铸体薄片、扫描电镜、高压压汞及储层物......
金属矿工程引发的水土流失主要发生在露天采矿、地下采矿、选矿、冶炼等建设和生产过程中,具有占地面积大、挖填土石方量巨大、排......
在直径只有1.2m或1.5m的深桩井中采用控制爆破进行岩石开挖.通过采用含空孔的直孔掏槽方式、反向起爆,并合理选择微差起爆时间,桩......
研究表明，皖北山西组至上石盒子组第１，２段地层单元沉积主体为河控三角洲体系。综合内部构成，砂分散格式和砂体宽厚比特征，将广布的分流水......
由于透射电镜的操作技术性很强,精通或熟练操作的人才较少,这直接导致许多地方的透射电镜空放或使用率低。现介绍一种分权限开放的......
该文根据神经网络的原理和BP神经网络的特点,说明将BP神经网络技术应用在网络通信中的优势,并根据其特点从三个方面介绍了BP神经网......
角色采矿和安装影响基于角色的存取控制(RBAC ) 的用法。传统地，分配的用户角色和允许被系统的安全主管操作。然而，费用是昂贵的，操作......
对准噶尔盆地西北缘勘探五、八开发区二叠系原油地球化学与物理性质特征的研究表明，研究区原油具有早期成藏、早期稠化破坏、中晚期......
The Rabeignathus bucaramangus fauna was recently found from the limestone beds of the top part of the clastics-dominated......
跨孔雷达全波形反演是一种使用全波形信息反演两钻孔之间地下信息的层析成像技术．常规的层析成像反演大部分采用射线追踪方法，其中基......
法律选言规范判断不同于传统逻辑中的选言判断,从逻辑层面上分析三种不同类型的法律选言规范判断,有助于准确地理解法律、正确地适......
The lower Permian is widely distributed in the Cuoqin Basin. Xia Daixiang called the lower Permian the Xiala Formation i......
概述了“东特提斯二叠纪生物地层、古地理和矿产资源国际学术讨论会（ＰＥＴ）”和“澳大利亚生物古地理国际学术讨论会（ＰＡＦＦ）”所涉及的主要内容及......
