excitatio相关论文
分析了利用探针层实验方法来测量激发效率在电致发光器件的发光层中分布的机理,并利用这种实验方法测量了激光发效率在低压驱动薄膜......
Hexagonal Yb3+,Er3+-doped Na YF4 crystals with different morphologies were synthesized by a facile hydrothermal method a......
SiAlON phosphors doped with rare earths have attracted much attention on the application of light emitting diode(LEDs) b......
本文对磷酸镧铈铽荧光粉的制备与发光作了报导。LaPO_4:Ce,Tb是一种发绿光的光致发光荧光粉。实验证明,该粉为一种性能良好、制备......
An Yb 3+ /Al 3+-codoped microstructured optical fibre is prepared based on photonic crystal fibre technology.The charact......
ZnO:Cu/ZnO core/shell nanocrystals are synthesized by a two-step solution-phase process. The morphology, structure and o......
We present a theoretical description of surface plasmon polariton(SPP)on a graphene surface excitated by four-wave mixin......
A Dy3+-doped LiYF4 single crystal capable of generating white light by simultaneous blue and yellow light emission of ph......
We present an experimental and theoretical investigation of the coherent population trapping(CPT)resonance excited on th......
Effect of Yb~(3+) concentration on the structures and upconversion luminescence properties of Y_2O_3
Y2O3:Er3+ ultrafine phosphors with a varying Yb3+ ion concentration were prepared by a urea homogeneous precipitation me......
A wave number method (WNM) is proposed to deal with the two-dimensional cou-pled structural-acoustic problem. Based on ......
Biphasic firing response of nucleus accumbens neurons elicited by THPB-18 and its correlation with D
AIM: To investigate the possibility whether THPB-18 (l-12-shloroscoulerine) possesses the D1 agonist-D2 antago- nist ac......
Nanosized YPO4∶Eu3+ was prepared by precipitation method in different pH value solution and at different annealing temp......
Ba0.9-ySryAl12O19:Eu0.1 phosphors were prepared by sol-gel technique,the crystalline structures of samples characterized......
采用数值模拟的方法,研究了合成射流对高负荷扩压叶栅分离流动的控制效果,分析了关键的控制参数激励频率、幅值和位置对控制效果的......
CYCIAE-100,the high intensity compact cyclotron under construction in CIAE,is designed to extract proton beam from 75 M......
Calculation of prompt fission neutron spectrum for ~(233)U(n,f) reaction by the semi-empirical metho
The prompt fission neutron spectra for the neutron-induced fission of ~(233)U for low energy neutrons(below6 MeV) are ca......
The fluorescent calcium ion indicator dye Fluo-3 and DNA-binding dye Hoechst 33342 were employed to determine, in a qua......
By using scanning tunneling microscope induced lumines-cence(STML)technique,we investigate systematically the bias-polar......
为了在不破坏材料的情况下估算服役结构材料的使用寿命,尤其是估算承受过未知周次循环载荷(已受损)的材料剩余疲劳寿命,提出一种预......
基于RSCAD/CBuilder采用自定义编程技术开发一套双馈式感应风力发电机(DFIG)的通用励磁控制模型.该模型控制策略依据网侧变换器电......
电晕笼无线电干扰试验得到的导线激发函数应进行校准等效之后再应用于输电线路的无线电干扰计算中.校准系数通常通过校准试验获得,......
本研究采用超声法、甲醛+NaOH法、Na2CO3-加热法、NaOH4-加热法和CER法等5种方法提取普通活性污泥的EPS.通过傅里叶红外光谱、三维荧......
利用通用的电磁暂态计算程序EMTP,对10 kV中性点不接地系统中电磁式电压互感器(PT)饱和引起的铁磁谐振过电压进行了仿真计算.通过......
电流互感器出厂时提供的伏安曲线大多只覆盖5~200mA这段低励磁电流区间,难以据此评估大倍数一次电流时的电流传变特性。采取简单指......
采用高温固相方法合成了(Y,Gd)(P,V)O4:Eu^3+,经X射线结构分析确定为四方晶系,体心结构,空间群为141/amd[141]。研究了(Y,Gd)(P,V)O4:Eu^3+在VUV及uV激......
本文将准高速列车──桥梁系统视为一个整体,根据随机振动能量理论1以列车构架人工蛇行波为激振源计算了列车分别以160km/h、200km/h速度通过钢筋混......
介绍了飞来峡机组励磁退出的逻辑关系和励磁变开关分合闸的控制回路,分析了飞来峡1号机组停机过程中,电气制动闭锁后进入非正常停......
采用同步判断(Simultaneous judgment,SJ)的研究范式探讨空间注意梯度是否受到视网膜离心率的影响。实验中给被试呈现两个目标刺激,......
文章系统阐述了构建气象部门科研人员激励机制的意义、优化工资结构、构建绩效考核制度等项目规章制度。分析研究了气象部门科研人......
采用全数字直流调速装置——西门子6RA70整流器来实现球磨同步电机的直流励磁给定,通过改造,取得了较好的运行和经济效果。......
The control strategy tor asynchronized turbogenerators (ASTGs) was studied by using two-axis equations. Simulation of th......
根据胡锦涛总书记所说:“我们所要建设的社会主义和谐社会,应该是民主法治、公平正义、诚信友爱、充满活力、安定有序、人与自然和谐......
在发电机的整定计算中,失磁保护所用到的阻抗圆是在R—X平面,而低励限制的整定一般是在P—Q平面进行的。本文提出了发电机低励限制整......
合成了新型蓝色光致发光材料Ca8Mg(SiO4)4Cl4:Ce^3+,并对其进行了光普测试。分析了Ce^3+在Ca8Mg(SiO4)4Cl2晶体中应占据的晶体不格位。测试结果表明,在紫外光激发下,Ca8Mg(SiO4)4Cl2:Ce^3+的发射光谱为......
为计算186 W(p ,n)186 Reg 反应的激发函数,收集了EXFOR实验数据库中的一些实验数据并对其进行了分析修正。将修正过的实验数据与EM PI......
引汉济渭工程是陕西省境内的一项大型跨流域调水工程。三河口水电站是引汉济渭工程的调蓄中枢,设计有工频发电、变频发电、工频抽......
针对余热发电汽轮发电机励磁部分存在的问题,分析原励磁控制器组成的原理,提出改造控制器的选型方案及组成原理。改造后的运行情况......
由于对砌块成型机振动器布置缺乏深入研究,振动器布置不科学、不合理,导致生产的砌块存在缺角、密实度不均等质量问题。深入探讨了砌......
分析了储罐底板漏磁检测过程中混合励磁源的耦合问题。采用ANSYS有限元分析软件建立混合励磁源磁化过程的数学模型,计算得到混合励......
用电子束蒸发的方法制备了传统的双绝缘层的ZnS:Tm的薄膜电致发光器件,对其电致发光谱进行分析,在光致发光中,Tm离子受到基质ZnS的无......
报道了一种在铝样品表面涂抹碳层以降低样品表面对激光束的反射率,提高激光诱导等离子体辐射强度的方法。结果表明,当一束高能量激光......
采用加速度传感器、试验分析软件等装置,开展某型综合传动箱体的台架振动加速度试验,目的是获得该综合传动箱箱体受振动影响最大的......
介绍了一款为特定介质阻挡放电(DBD)负载供电需要特种激励电源的研制,该激励电源电压要求高,电流小,功率要求很小,稳定性要求好,精确度要......
介绍了包钢热电厂30MW汽轮发电机组电气系统改造、微机综合保护技术的应用及无刷励磁系统的改进。改造实施后,消除了隐患,保证了机组......
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