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人工晶状体(intraocular lens，IOL)在眼内位置的变化将会对屈光状态及眼内像差尤其是高阶像差及成像质量产生影响。IOL在眼内的稳定......
The vector correlations between products and reagents for the reactions Ne+H + 2 , Ne+D + 2 , and Ne+T + 2 are calculate......
Attention is being increasingly paid to the new material prepared by bonding organic molecules on the surface of silica......
The research method in this paper is based on the standard of American Society for Testing andMaterials (ASTM). Planing ......
Through deducing the relationship between support vector machine(SVM)and correlation principle,the optimal hyperplane is......
Light propagation properties of two-dimensional photonic crystal channel filters with elliptical mic
Light propagation through a channel filter based on two-dimensional photonic crystals with elliptical-rod defects is stu......
The rotational motions of the optically trapped microscopic particles by the vortex femtosecond laser beam are investiga......
1The Selection of the technical plan1. 1 About the type of scan: ICT can be the 2nd generation CT or the 3rd generation ......
We demonstrate a switchable Q-switched and mode-locked erbium-doped fiber laser (EDFL) operating in the L-band region us......
In this paper, authors obtain the spectral peaks of the earth free oscillation and check all normal modes from 0S0 to 0S......
A tillage experiment,consisting of moldboard plow (MP),ridge tillage (RT),and no-tillage (NT),was performed in a randomi......
A new preparation technique-“block dispersal and cast” method is introduced, and three kinds of powder mixing methods,......
Structural Resistance of SRC Column-Steel Beam Joint Developed for Innovative Construction of Buildi
This paper presents an experimental study investigating factors influencing the effective width of steel reinforced conc......
Effects of tip separation and orientation on negative differential resistance in boron-doped carbon-
We investigate using the Landauer formalism,which combines both the non-equilibrium Green’s function and density functi......
A multi-body model of engine system with flexible crankshaft was presented in this paper to analyze the dy- namic behavi......
Ductal carcinoma in-situ (DCIS) has been visualized by 2D XDFI (X-ray dark-field imaging) and further by a 3D X-ray CT, ......
The protected agricultural production has become one of the fast growing and wid espread cultivation technology in the n......
Contribution of ultrasonic surface rolling process to the fatigue properties of TB8 alloy with body-
The effect of ultrasonic surface rolling process(USRP)as a severe plastic deformation technology was investigated on the......
Co-based Co63Fe4B22.4Si5.6Nb5 amorphous ribbons with a width of 150 μm and a thickness of 50 μm were prepared by singl......
A new level scheme of 112In have been established up to 6.8 MeV in excitation energy and to a tentative spin of (21+) th......
Two-dimensional total routhian surface (TRS) calculations are carried out to determine the triaxial superdeformation (TS......
Electron cyclotron current drive(ECCD) will be applied in the EAST tokamak during its the new campaign. In order to prov......
CARR will provide with maximal neutron flux in Asia,the third of the world.By using the high quality neutron beam and th......
Analysis of the characteristics of offshore currents in the Changjiang(Yangtze River) estuarine wate
A buoy of 10 m in diameter was used to record the current speed and direction in a vertical profile in the offshore area......
The analysis of the radiated noise of vessels given in this paper showssome strong superposed line components in low fre......
The rotational parameters estimation of maneuvering target is the key of cross-range scaling of ISAR (inverse synthetic ......
,Possible observation of shape-coexisting configurations in even-even midshell isotones with N=104:a
Systematic total Routhian surface calculations for even-even N=104 midshell isotones with 66≤Z≤82 have been carried ou......
Limits to foundation displacement of an extra high voltage transmission tower in a mining subsidence
Given the background of a transmission tower erected on a particular mining subsidence area,we used finite element model......
A shape measurement based on ESPI by using carrier is presented. When the tested object is tilted with a small angle,the......
For the navigation algorithm of the strapdown inertial navigation system, by comparing to the equations of the dual quat......
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生......
This paper expounded in detail the principle of energy spectrum analysis based on discrete wavelet transformation and mu......
介绍了中国航空工业空气动力研究院自主开发的旋转流场下单自由度振荡系统及相应的试验技术.尾旋特性分析及预测时所使用的动导数......
结合工程实例，介绍平移装置的设计，平移中地基土承载力的验算及平移托换技术，平移与转向方法等，分析探讨了设计施工中的遇到的问题。......
在径向进气轴向出流的旋转盘腔中,在哥氏力的影响下,流体速度的切向分量和流体的总压损失均增大,用数值计算方法研究其损失特性缺......
传统的基于Gabor小波能量特征的图像检索技术,在检索旋转图像时效果很差。为了解决这个问题,本文提出具有旋转不变性的Gabor纹理特......
Possible observation of shape-coexisting configurations in even-even midshell isotones with N=104: a
Systematic total Routhian surface calculations for even–even N =104 midshell isotones with 66≤Z ≤82 have been carried......
经典微分几何研究三维欧氏空间中曲线曲面理论,其最具有特色的研究是主曲率函数满足某些关系的魏因加吞曲面.一般地说,这种曲面的......
在绘制混凝土喷射机料斗三维实体模型的基础上，采用有限元分析方法来研究混凝土喷射机料斗部件的固有频率，得出其前21阶模态频率。结......
用ＨＲＴＥＭ、ＴＥＭ及ＥＤＡＸ分析研究了Ａｌ－Ｌｉ－Ｃｕ－Ｚｒ合金中的一种新相（暂名Ｈ相）和六角Ｚ相的结构，确定Ｈ相具有四方点阵，点阵参数为ａ＝２．８ｎｍ，ｃ＝２．４ｎｍ，ＥＤＡＸ分析表明Ｈ明和Ｚ相均含有Ａｌ，Ｍｇ，Ｃｕ。发现Ｈ相与Ｚ相的共存取......
针对目前翼片式空气流量传感器在工作过程中存在压力损失较大的缺点,通过对汽车进气管道内气流状况的分析,明确造成压力损失较大的......
阐述了对称式三线摆的结构原理,介绍了微角与大角摆动周期,利用该摆可以测量小型弹箭、炮弹头、飞机模型及其他构件的转动惯量,当 ......
本文推导了在多维地震动作用下求解结构随机反应的一种有效方法—“多维随机振动的振型加速度法”,通过算例验证了本文方法的正确......
本文分析了目前在故障诊断专家系统知识库构造方面存在的问题，研究了大型旋转机械故障诊断领域知识的构成特点和表达形式。为了保证......
本文提出了一种基于排列法和旋转法联合生成的酉空时星座图设计新方法,该方法可为酉空时信号提供性能较好的星座图.同时,针对这种......
研究砂姜黑土旱改水对土壤中Mn含量、赋存形态和有效性的影响结果表明,砂姜黑土中Mn存在于粘土矿物、晶形氧化铁、无定性氧化铁、......
用回转筒反应器针对剪切力紫苏植物细胞的存活率的影响作了定量研究。结果表明剪切力剪切明间明显细胞存活率，细胞的生长期和细胞浓......
汽轮发电机，空气压缩机等采用油膜支撑的大型转动机械，由于安装或运行中的原因，在转子旋转过程中，可能和器壁发生轻微的摩擦和碰击，简称......
