电子学

The high-correctness C/O energy spectrum logging system features use of fast neutron in deuterium and tritium reaction along with alpha particles flying technique to log, and is composed of neutron counter tube accompanied by alpha particles test system, neutron shielder, gamma ray detector, fact electric timer and computer for data acquisition, processing and control.

本发明提供一种高准确度的碳／氧比能谱测井系统，该系统是将氘氚反应快中子伴随α粒子飞行时间技术用于碳／氧比能谱测井，包括具有伴随α粒子探测系统的中子管，中子屏蔽体，γ射线探测器，快电子学定时部件以及数据获取、处理和控制计算机。

He has a plenty of experiences in electronics and electric circuit design.

具有较好的电子学基础及丰富的电路设计经验。

The use of savings for many years the application of technology to the field of electronics, biochemistry field many of the advance angle.

利用多年积蓄的应用技术，向电子学领域，生化学领域进行多角度的推进。

In this thesis,based on the DFT+NEGF first-principles method,we construct a lead-molecule-lead sandwich system with single benzene-based molecule to investigate the relationship between the structure and properties of the molecular devices and the factors that influence properties of the molecular devices.Our computational investigations on these molecular devices are primarily concentrated on the effect of contact geometry between molecules and electrodes,the effect of side groups,the effect of different torsion angle between two phenyl rings and the effect of external electric field.This thesis consists of five chapters:In Chapter one,we mainly introduce the research background and development of the molecular electronics,including the experimental fabrication of molecular electronic components and theoretical simulation methods.Afterwards we discuss the questions that need to be solved in this area.Finally,the main contents of this thesis are listed.In Chapter two,we introduce the theoretical methods used in this thesis, including the main first-principles calculation methods,i.e.,the Density-Functionmethod and nonequilibrium Green\'s function.

本论文拟采用密度泛函理论和非平衡格林函数相结合的第一性原理计算方法，选取苯基小分子作为研究对象，构建了金属电极/有机小分子/金属电极三明治结构体系，系统地研究了苯基分子器件结构的改变与分子电输运性质之间的关系以及影响分子器件电输运性质的相关因素，其中重点研究了分子与电极间可能的接触结构改变、官能团、分子间的扭转角以及外电场对苯基分子电输运性质的影响，本论文主要包括以下五个章节的内容：第一章为综述部分，主要介绍了分子电子学产生的背景、分子器件的研究意义、当前研究分子器件的实验和主要理论方法，以及目前在研究分子器件中存在的一些问题，最后给出了本论文的主要研究内容和技术路线。

Normally, as the stabilized system only considers the angular motion of the isolated vehicle, the design of stabilized system mainly uses the servo control method combining optics and electronics.

由于稳像系统一般都只考虑隔离载体的角运动，因此稳像系统的设计主要采用光学和电子学结合的伺服控制方法。

Alternating aperture phase shift mask; phase assignment; tri-connected components; phase conflict detection; dynamic priority search tree

信息科技，无线电电子学，微电子学、集成电路交替移相掩模技术；相位分配；三连通分支；相位冲突检测；动态优先搜索树

The alternate stacking sequence of conducting and insulating layers blocks in t-BC3 crystal constructs a sandwichlike lattice at an atomic level; which will bring some potential applications expected for novel electronic devices.

设计了一种类金刚石结构导电的BC3超硬材料，预测t-BC3晶体的硬度为79.0 GPa，高于立方氮化硼的硬度；t-BC3晶体是一种具有原子级导体-绝缘体交叠的三明治结构的晶体；可望在新型电子学器件上获得应用

GPa exceeding that of cubic BN. The alternate stacking sequence of conducting and insulating layers blocks in t-BC〓 crystal constructs a sandwichlike lattice at an atomic level, which will bring some potential applications expected for novel electronic devices.

设计了一种类金刚石结构导电的BC〓超硬材料，预测t-BC〓晶体的硬度为79.0GPa，高于立方氮化硼的硬度。t-BC〓晶体是一种具有原子级导体-绝缘体交叠的三明治结构的晶体，可望在新型电子学器件上获得应用。

Some experts believe that the Israeli contribution will focus on avionics and radar, with Russia supplying the engines.

某些专家认为，以色列和中国合作的技术重点在航空电子学系统和雷达系统，加上俄罗斯的引擎。

Bionics is a kind of marriage between biology and electronics .

仿生学是生物学和电子学的结合物。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。