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Recent research progresses in Multi-Beam Klystron (MBK) in IECAS are briefly introduced in the letter. The S-band MBKs ......
Effects of transverse mode coupling and optical confinement factor on gallium-nitride based laser di
We have investigated the transverse mode pattern and the optical field confinement factor of gallium nitride (GaN) laser......
The propagation behaviour of terahertz(THz)pulses at an edge is characterized.The phenomenon that the amplitude oscillat......
Based on the principle and fabrication of the optical waveguide laser,and through the configuration of the energy level ......
In this paper, the response characteristics of dry friction backward whirl of a general rotor/stator model, which accoun......
Based on the platform of 0.35μm PDSOI CMOS process technology,the partially depleted siliconon -insulator dynamic thres......
We investigate the effects due to anisotropy and magnetic field interaction for a quasi-two-dimensional Boltzmann gas in......
Three-dimensional particle-in-cell method of simulating high power terahertz gyrotrons with planar s
Based on analyzing the large-signal theory of the planar gyrotron, it is suggested that a simplified structure of the de......
We report on the resonance fluorescence(RF) from single In As quantum dots(QDs) emitting at the telecom band of 1300 nm.......
The effect of flow oscillation to the mass transfer between turbulent fluid and solid wall was investigatedby measuring......
Experimental study on pressure and temperature distributions for low mass flux steam jet in subcoole
A low mass flux steam jet in subcooled water was experimentally investigated.The transition of flow pattern from stable ......
Sound pressure wave and particle velocity wave of the receiving theory of inertial sphere type vector hydrophone was stu......
This study predicts that quasi-periodic oscilla- tions could exist in a detailed model of glycolysis that is ana- lyzed ......
A bench rig was built and used to study the scuffing mechanisms and the effects of sur-face roughness, clearance, and gr......
Period-doubling and chaotic oscillations in the ferroin-catalyzed Belousov-Zhabotinsky reaction in a
The ferroin-catalyzed Belousov-Zhabotinsky(BZ) reaction,the oxidation of malonic acid by acidic bromate,is the most comm......
A tunable dual-wavelength fiber Bragg grating(FBG)laser based on a distributed feedback(DFB)laser injection is proposed ......
We study the effect of incubation period on epidemic spreading in the Barabasi-Albert scale-free network and the Watts-S......
针对传统扰动观察法在光伏系统最大功率点跟踪时的不足,提出一种新型扰动观察法.该方法利用在最大功率点两侧,参考电压的前后压差......
考虑差分方程xn+1=xn(1+axn-k)p+bxn-m, n=0,1,2,，其中a,b,p>0,>1, k,m 0,1,2,，当k=m=0时，Watkinson用此方程来描述热带地区季蜀黍属......
摘 要：研究具有脉冲的多时滞差分方程，通过构造辅助函数，借助于反证法、单调有界原理及函数的连续性，得到了方程振动的两个充分条件，将......
阐述了过振荡系数γ和振荡频率f的调节在分断能力试验中的意义，列出了相关标准对这些参数的要求以及调整电路的连接方法。在此基础......
声频振动取样技术是近年发展速度较快的适用于土壤环境地质取样的新型取样技术,是利用声频振动头（激振器）内对称分布于钻机输出轴两......
考虑中立型微分方程我们建立了方程(1)的若干振动准则。这些结果适用于强超线性和强次线性中立型微分方程,且当p(t)≡0时仍然成立......
本文将二端口网络理论应用于三点式振荡电路分析,得出了振荡频率较完整的数学表达式,以及振荡条件与器件参数之间的关系,从而为设......
研究了一类具有扩散系数的时滞量非线性中立双曲型偏泛函微分方程的振动性，借助广义Riccati变换和微分不等式技巧，获得了这类方程分......
研究了一类带脉冲的高阶线性泛函微分方程,建立了无脉冲的微分方程的振动性和渐近性的比较原理,在此比较原理下得到了带脉冲的高阶......
讨论了一类二阶强次线性时滞微分方程解的振动性质，建立了三个新的 振动性定理。推广和改进了已知的一些结果。......
研究一阶非线性中立型时滞微分方程[x（t）-pxα（t-π）]′＋f（t,x（t-σ））=0,t＞t0的解的振动性, 在p,τ∈（0,∞）,σ∈[0,∞],α≠1,f（t,x）为定义在[t0......
为测量大口径枪弹用底火的输出能力，建立了—套测试系统。该系统采用压电晶体测试气体压强，利用数据采集系统完成数据分析。通过对某......
基于Bubble子波和超高斯谱子波的构造方法 ,本文系统地提出一类新的复解析子波 ,该类子波在频域和时域均有简明的解析表达式 .文中......
利用补偿技术来减少因机械振动而引起石晶体振荡器附加相位噪声,其设计方法是将极化器产生的信号通过幅度和相位可调节的补偿器,并......
利用Riccati技术讨论了一类带p-Laplace算子的偏微分方程解的振动性质,得到了此类方程的Hartman-Wintner型振动定理.......
文章研究一类高阶非线性中立型偏微分方程解的振动性,获得了所有解振动的充分判据,主要结果由一些实例加以阐明.......
利用广义Riccati变换和积分平均技巧，研究一类三阶中立型泛函微分方程的振动性质，建立了保证此方程一切解振动或者收敛于零的若干新......
研究中立型时滞微分方程(2)/(t2)［u(x,t)+p(t)u(x,t-τ)］=a(t)△u(x,t)-q(t)f(u(x,σ(t)),(x,t)∈Ω×R+≡G(1)其中，R+=［0，+∞］，......
利用Philos方法建立了非线性二阶中立型时滞微分方程的若干新的振动准则.该结果推广和改进了一些文献中的定理.......
本文报导了L-苯丙氨酸-乙酸丁酯为复合有机底物的化学振荡反应....
作为机械、电子振荡的数学模型一泛函微分方程的振动性研究在理论和实际中都有着重要意义．对于二阶泛函微分方程的振动性已经有了许......
本文研究了一维波动方程和热方程在某种定解条件下解的振荡性质，所得到的结果可推广到高维空间中去．......
在Herz-Morrey空间上研究了多线性奇异积分算子的有界性．...
通过对含静止无功补偿器（static var compensator，SVC）的单机无穷大（single machine infinite—bus，SIMB）系统进行电磁转矩计算，从理论上......
考虑一类非线性非自治中立型时滞连续变量差分方程，在比较弱的条件下，得到了该方程振动的几个充分条件．......
研究了一类具有多个变滞量的变系数的二阶中立型差分方程的解的振动性．得到了该类方程振动及其解的一阶差分振动的充分条件。......
伺服系统中发生中高频机械谐振时一般采用自适应陷波器进行抑制。传统的两参数陷波器方案易引入较大的相位延迟,而且抑制速度难以......
依据与非门的逻辑关系并考虑门的延迟时间,分析了基本RS触发器＂不确定输出状态＂产生的原因及条件,并在Multisim10仿真软件中用字组产......
We present results of a time-series CCD photometry of two blue stragglers in the open cluster M67 that are also oscillat......
通过激光振荡器时间特性监测;八路激光束精确同步测试;激光系统信噪比测试;三套脉冲激光波形测试设备比对实验的研究;二次谐波转换......
在研制高效宽带增益激光非线性频率转化的实验中发现,由双折射滤光片透过率计算出的激光输出频谱宽度比激光器实际频谱宽度要大一......
OSCILLATORY PROPERTIES OF THE SOLUTIONS OF NONLINEAR DELAY HYPERBOLIC DIFFERENTIAL EQUATIONS OF NEUT
By making use of the integral inequalities and some results of the functional differential equations, oscillatory proper......
