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研究了短脉冲强激光在非稠密均匀等离子体中传播时产生的相对论相干三次谐波的饱和问题。在准静态近似(qusistatic approxmation)......
立体图像观看舒适度的影响因素是立体成像技术领域的关键问题。结合视觉注意机制特性,定量研究饱和度因素对立体图像视觉舒适度的......
本文对对KrF激光产生的动力学过程及发光机制进行了研究,利用激发态二能级稳定态理沦,得到了介质的增益、饱和光强以及腔内最佳光......
报道了用一束二倍频Nd:YAG激光同步抽运的脉冲染料激光系统,e型电子枪,铀原子束装置以及利用在单原子检测技术基础上发展起来的共......
记录并分析了钠原子蒸气形成近4D能级双光子共振参量四波混频产生的330 nm信号，描述了信号强度随实验条件变化的规律，确定了最强辐射......
本文用微扰方法计算了电子分布函数，得到了康普顿型谐波自由电子激光器小信号增益及饱和增益的公式，最后对模型及结果进行了分析与讨......
当辐照光强较低时, CCD相机输出图像中的灰度值分布代表了辐照光的功率密度分布。利用此时CCD相机输出激光光斑的灰度分布及辐照激......
<正> Ⅰ. INTRODUCTIONThe presence of atmospheric kinetic cooling caused by atmospheric absorption of 10.6μm laser radia......
This paper presents neural adaptive control methods for a class of chaotic nonlinear systems in the presence of constrai......
A novel model for dynamic temperature distribution in heavy oil reservoirs is derived from the principle of energy conse......
目的观察失血复合氰化物中毒对大鼠脑血氧和能量代谢的影响。方法实验动物随机分为假手术组、失血性休克组、氰化钾中毒组和失血性......
Chirped fiber Bragg gratings have found many applications in optical communication and sensing systems. High quality fil......
A controllable optical delay line using a Brillouin optical fiber ring laser is demonstrated and a large time delay is o......
The large signal RF power transmission characteristics of an advanced InGaP HBT in an RF power amplifier are investigate......
A 4 W K-band AlGaAs/InGaAs/GaAs pseudomorphic high electron mobility transistor(PHEMT) monolithic microwave integrated c......
Improved performance of 4H-SiC metal-semiconductor field-effect transistors with step p-buffer layer
An improved 4H-SiC metal-semiconductor field-effect transistors (MESFETs) with step p-buffer layer is proposed,and the s......
By using 0.15 μm GaAs pHEMT (pseudomorphic high electron mobility transistor) technology,a design of millimeter wave po......
A novel low-offset dynamic comparator for high-speed low-voltage analog-to-digital converters (ADCs) has been proposed.I......
The paper deals with the coalbed methane gas-bearing characteristics such as the gas content, theoretical gas saturatio......
In this letter, we solve three-dimensional time-dependent Newton equations for atoms interacting with a ten-cycle ellipt......
The current accumulation and enrichment of CBM reservoir is a result of the preservation and destruction of former CBM, ......
Graphene oxide carboxylic acid(COOH), a novel two-dimensional(2D) layered material with its unique optical and electroni......
A 300 μm×300 μm light emitting diode(LED) chip is divided into nine 80 μm×80 μm units with 30 μm spacing between ......
Ferrous ion was transformed into feroxyhyte (δ-FeOOH) by oxidation. Then, manganese sulfate and zinc sulfate in some ra......
A new mechanical electrodeposition technology was proposed, and nanocrystalline nickel deposit with bright and smooth su......
The characteristics of local heat transfer and pressure drops were experimentally investigated using condensing R134a tw......
In this paper, a grid-based distributed hydrological model BTOPMC (Block-wise use of TOPMODEL) is introduced, which was ......
Solar radiation, which varies over multiple temporal scales, modulates remarkably the evolution of the ionosphere. The s......
Accurate assessment of surface suspended sediment concentration(SSSC) in estuary is essential to address several importa......
Study of the permeability characteristics of porous media with methane hydrate by pore network model
The permeability in the methane hydrate reservoir is one of the key parameters in estimating the gas production performa......
Seepage flow through soils,rocks and geotechnical structures has a great influence on their stabilities and performances......
To study the antiviral effect of Hypericum perforatum L. extract (HPE) on influenza A virus (IAV) (H1N1) in vitro and in......
Separation of Antitumor Active Plypeptides from Periplaneta Americana by Ultra Filtration Technology
[Objective] The paper was to establish ultrafiltration membrane technology for separation of antitumor active plypeptide......
Based on the flux equivalent principle of a single fracture,the discrete fracture concept was developed,in which the mac......
A pressure force control system for hot embossing of microfluidic chips is designed with a moment motor and a ball beari......
The production,transportation,deposition,and dissolution of carbonate profoundly form part of the global carbon cycle an......
This paper describes a low cost automatic gain controller card that provides fast transient gain control to maintain th......
Semi-Global Leaderless Consensus of Linear Multi-agent Systems with Actuator and Communication Const
This paper studies the leaderless consensus problems of multi-agent systems with input saturation and intermittent commu......
测云激光雷达具有精度高和稳定性好的特点,是检测云高的有效途径。作为激光雷达系统的一个基本组成部分,脉冲二极管激光器(PLD)需......
In order to overcome the flaws of present domestic devices for detecting faulty wires such as low precision,low sensitiv......
The number of films is numerous and the film contents are complex over the Intet and multimediasources. It is time consu......
本文综述近年来提出的某些特殊类型高血压,着重介绍各型高血压的临床表现,发病机理及其治疗方法.
This article summarizes some ......
为NPN型功率管的降压型开关电源芯片设计了一种驱动电路。针对功率管工作在导通状态下的导通损耗和在开关状态转换中的开关损耗,设......
Bromate(BrO_3) is a disinfection by-product in drinking water, and its removal is very difficult especially at low level......
顶吹转炉由于其工艺特点,造成转炉终渣FeO质量分数高等不利因素。为了解决该问题,通过研究碳脱氧的原理,提出了以碳质材料作为炉渣......
Cerium and titanium were added to an Al–42Zn–6.5Si brazing alloy, and the subsequent microstructures of the brazing al......
目的探索浅深度饱和后模拟150 m快速上浮脱险对山羊血细胞及凝血功能的影响。方法成年健康山羊12只，按数字表法随机分为7 m组和12 m......
Rock physics modeling of heterogeneous carbonate reservoirs:porosity estimation and hydrocarbon dete
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......
