Does accurate element laser treat myopic effect how?
准分子激光治疗近视效果怎么样?
The model is based on the semiconductor laser rate equations and the structure of the VCSEL chip, and every element in the circuit is represented.
等效电路的提出是基于半导体激光器速率方程以及VCSEL芯片结构,电路中各元件都有严格的物理意义。
Laser based splitting method, object to be split, and semiconductor element chip.
基于激光的分割方法,待分割物体,和半导体元件芯片。
The temperature field and microstructure field during laser heat treatment process were calculated using Finite Element Method or Finite Difference Method.
应用有限元和有限差分方法对激光热处理过程的温度场、组织场进行了数值模拟计算。
They zapped a tiny plastic pellet with 12 laser beams fired simultaneously and allowed some of the resulting radiation to blast a pellet of silicon, a common element in accretion disks.
他们利用12道激光束同时袭击一个小小的塑料球,再利用所形成的部分辐射引爆一个硅球,而硅是吸积盘中的一种常见元素。
This paper studies the thermal lensing effect of optical element under laser heating at non-thermal equilibrium state.
研究了强激光作用下非热平衡状态光学元件的热透镜效应。
The achievement of Laser micro-probe spectrochemical analysis of doped element concentration in laser crystals is reviewed and several essential problems in its field are described.
本文概括介绍了激光微区光谱定量分析激光晶体中掺杂元素浓度的研究成果,着重讨论了定量分析中的几个主要问题。
Laser is the basic element for application of laser technologies.
激光器是激光技术应用的基础。
Based on heat transferring, a thermal field model of Laser Inner Cutting system was established and numerically simulated with the help of finite element software ANSYS.
在传热学的基础上建立了激光焦点在透明材料内部作用时的温度场模型,借助于大型有限元分析软件ANSYS进行了数值模拟。
As a spectroscopical element, grating has been widely introduced into numerous areas such as spectrometer, DVD, laser, telescope, grating polarization apparatus.
光栅作为一种分光元件,广泛应用于光谱仪、DVD、激光器、望远镜、光栅偏振器等诸多领域。
The experiment of time sequence observation of laser orientation angel for transmitting laser beam through an optical element under heating of powerful laser has been carried out.
对在强激光作用下的光学元件的透射激光方向角进行了时序观测。
Resonant laser ablation of metal is a very important experimental method, because it can be used as detection technique of trace element with high sensitivity.
金属样品的共振激光烧蚀可以作为一种高灵敏的痕量探测技术,近年来受到越来越广泛的重视。
The results show that the unequal width element CLA is able to improve the homogeneity along the focus line for an incident laser with both Gaussian and uniform distribution.
结果表明采用不等宽单元技术能大大改善入射光场为高斯分布型的焦线强度分布均匀性。
In our experiments, we use a half-intracavity laser. The discharge tube's window plate with high anti-reflecting film is used as a stress birefringence element.
采用半内腔式的激光器结构,激光增益管窗片的两表面镀有高增透膜并作为腔内应力双折射元件。
The system can further include a pyrometer wavelength blocking filter between the source of laser radiation and the wavelength responsive optical element.
该系统可进一步包括在激光辐射源和波长响应光学元件之间的高温计波长阻挡滤波器。
The temperature and stress fields of a ring structure laser welding are simulated by finite element method (FEM).
对铍环激光束钎焊过程的温度场和应力场进行了有限元模拟。
Having a structural element that is built by selective laser sintering, the grid can be a highly complex 3d structure that is not achievable by molding or milling techniques.
在已经通过选择性激光烧结建造出结构元件之后,所述滤线栅可以是通过模塑或研磨技术无法实现的高度复杂的3d结构。
This paper simulates the temperature field associated with laser surface quenching using ANSYS - a finite element analysis software, and a series of studies are carried out based on this simulation.
本文结合先进的大型有限元分析软件ANSYS,对激光表面淬火的温度场进行有限元模拟,并在此基础上,对此展开一系列研究。
The invention realizes three-band output, and the cavity structure can ensure high energy and narrow pulse width three-band laser output and also can reduce element damage.
本发明实现三波段输出,此腔型设计既能保证高能量、窄脉宽三波段激光输出,又能降低元件损伤。
This article presents the facture of a holographic optical element for laser direct writing synthetic holograms.
文章旨在提出一种用于激光直写合成全息拍摄的全息光学元件的制作技术。
Focal depth of laser beam is advanced by diffraction optical element in this paper.
本文使用衍射光学元件来提高激光束的焦深。
Due to the special manufacture craft and the new structure of laser welded dimple-plate jacket, it is necessary to be studied by experimental and theory analysis (mainly finite element analysis).
由于激光焊蜂窝夹套的特殊制造工艺及其新颖结构,需对其进行一个系统的实验研究和理论分析(主要是有限元数值模拟分析)。
A numerical simulation was performed to calculate temperature and stress distribution in K9 glass sample irradiated by pulse CO2 laser using finite element method.
利用有限元法对脉冲CO2激光辐照K 9玻璃样品中的温度和应力分布进行了数值分析。
A new optical element called Glass Ring is introduced in this paper. It can transform laser beam into a laser beam plane.
介绍一种新型的光学元件,它可把一束激光变换成一个两维的激光平面。
Placing a diffractive optical element(DOE) on the incident laser beam to improve the depth of focus, the DOE'S aperture is variable.
在入射光束的孔径受限制的情况下,利用衍射光学元件来增加激光束的焦深。
The temperature field and warming process of the transient and steady state in the laser rod by symmetrical trigonal side-pumping were simulated using the finite element analysis method.
用有限元法计算模拟了三角均匀分布侧面泵浦结构激光棒瞬态温升过程及稳态温度分布情况。
Discussed the CGM based on finite element program generator (FEPG), the laser welding problems is simulated on it, and reached some ideal simulation results.
讨论组合网格法(CGM)在有限元程序自动生成系统平台(FEPG)上的具体实现,并对激光焊接问题进行数值模拟,取得了理想的仿真结果。
The laser that compares two kinds of different wavelengh denudes system, medium holds back discharge fractional to the element of laser of 213 Nm solid effect improves function apparent.
相比两种不同波长的激光剥蚀系统,介质阻挡放电对213nm固体激光的元素分馏效应改善功能明显。
It is proposed in this paper to calculate the heat conduction with finite element method in the heat treatment process of metal by laser technology.
提出用有限元法对金属激光热处理的非稳定热传导过程进行计算。
It is proposed in this paper to calculate the heat conduction with finite element method in the heat treatment process of metal by laser technology.
提出用有限元法对金属激光热处理的非稳定热传导过程进行计算。
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