能量密度

仿真结果表明，K9玻璃沿径向产生很大的温度梯度，激光能量密度越大，材料中心的温度越高，中心的应力也越高。

The simulated experimental result shows that , great temperature gradient in K9 glass exists in radial directions . The more energy density resulted in higher temperature and greater stress in the center of the K9 glass .

氢，作为宇宙中最简单和丰富的元素，具有最高的单位质量能量密度，燃烧生成水，清洁无污染，被认为是理想的清洁的可持续能源。

Hydrogen , the simplest and most abundant element in the universe , contains the highest energy density per unit mass , burns clean , producing only water , is considered as an ideal candidate to meet the need .

基于微型涡轮发动机实现超高能量密度PowerMEMS的研究

Research on Power MEMS Based on Micro-Gas Turbine Engine with Ultra-High Specific Energy

TEACO2激光器输出光束的能量密度分布一般为平顶型分布。

Generally , the energy density distribution of a TEA CO_2 laser was flat-topped .

方法根据患者不同的年龄、性别以及太田痣色素的深浅，分别采用4～6J/cm2不同的能量密度，用Q－开关红宝石激光治疗太田痣患者246例。

Methods 246 patients with nevus of Ota were treated with Q switched ruby laser .

初步证实了TEACO2激光器输出光束的能量密度分布可以按厄米-高斯函数展开。

It was proven that the energy density distribution of a TEA CO_2 laser could be expanded in Hermit-Gauss functions .

高能量密度脉冲电流对Fe（76）Si（12）B（12）共晶合金凝固组织的影响

Effect of high-energy-density pulse current on solidification microstructure of Fe_ ( 76 ) Si_ ( 12 ) B_ ( 12 ) eutectic alloy

方法对20只新西兰大白兔面神经行不同能量密度的Nd∶YAG激光照射，并对受损面神经进行计量病理学测定。

Methods Facial nerves in 20 rabbits after Nd ∶ YAG laser irradiation were studied with quantitative pathology .

随着Ge含量的增加，激光晶化阈值能量密度降低，耐退火能力也降低；在相同的激光晶化能量密度下，Ge含量越高的薄膜，激光晶化的效果越好，晶粒尺寸长得越大。

The film with more Ge content has lower energy density threshold and larger grain size .

MOSFET开关变换电路换流过程的瞬态磁场能量密度的计算

Computation of Transient Magnetic Energy Density of the Commuting Process for MOSFET Converter Circuits

导出了易磁化轴沿着x轴时薄膜能量密度的取向通式；

The general formula of orientation for the thin film energy density has been obtained when the easily magnetized axle is along with x axle .

结果PDT可造成RPE细胞死亡，死亡率与激光能量密度和光敏剂浓度成正相关。

Results PDT caused the death of RPE cells .

我们通过改变激光能量密度，观察了对实验小鼠移植瘤（S180）的坏死深度及表面温度的变化。

By changing laser energy density , we noticed changes of necrosis depth and sur-face temperature .

锥面AWG能量密度及其色散特性的研究

Study of Energy Density and Dispersion Characteristics on a Tapered Planar Array Waveguide Grating

电子探针结果表明，在低功率焊接过程中，由于能量密度较低，因此在焊接过程中Ti和Al基本没有蒸发，基底和焊缝中心的成分基本相同。

There is no vaporization both of Ti and Al during the low-power welding process , the components of the surface and the center of weld pool are the same .

提高能量密度和HpD剂量可提高疗效。

Increasing the fluency of laser and the dose of HpD can improve the efficacy .

基于MonteCarlo模型ODIN分析了相对论重离子碰撞中能量密度的时空发展。

The space-time development of the energy density in relativistic heavy ion collisions is analyzed based on Monte Carlo code ODIN .

傅立叶分析与HHT分析在场地与近远场方面变化趋势基本相似，特别能量密度谱几乎相同。

Fourier transform suits to HHT in analyzing the trends of site and distance , especially of energy density spectrum .

恒流充放电测试结果表明：它具有快速充放电的能力，能量密度比47μF铝电解电容器提高了约6倍。

The galvanostatic charge-discharge test results showed that the supercapacitor had the ability of quick charge-discharge and the energy density was about 6 times higher than that of 47 μ F aluminum electrolytic capacitor .

密度泛函理论（Densityfunctionaltheory，DFT）以近似能量密度泛函为基础建立的方法可以对分子振动光谱进行理论上的计算，其计算量比从头计算方法小得多，可以计算大的复杂体系。

Density Functional Theory ( DFT ) can calculate molecular vibration spectrum by means of the method based on approximately energy density function . Contrasting with Hartree-Fock , DFT can calculate larger complex matrix for its smaller calculation amounts .

研究发现，不同NTP放电频率下，NTP的能量密度随着工作电压的增大而升高。

The results found that the NTP SED increased with the working voltage increasing under the different NTP discharge frequency .

本文研究了在大气中用激光束直接加热Zn靶制备ZnO纳米粉.结果表明，不同的激光能量密度制备出的ZnO纳米粉的形状结构不同。

We present the results of nanocrystalline powder ZnO produced by laser heating in atmo-sphere , which show that we can get different shapes and structures of ZnO powder particles indifferent laser beam energy density .

对比结果表明，加入氮气作为保护气体提高了TIG焊接电弧的电弧温度、等离子体速度和电弧压力，能得到更高能量密度的焊接电弧。

The results show that the temperature , pressure and velocity of the arc could rise adding N_2 as protesting gas and higher energy density arc can be got .

用于加工的激光束要求有较高的能量密度，本系统中应用了激光调Q技术，将泵浦能量压缩至十几纳秒放出，产生高能量密度的激光巨脉冲。

The laser beam used for micromachining must have high energy density . Q - switching technique is applied . By releasing the pumping energy in about a decade nanoseconds , huge energy density beam can be achieved .

区别于传统的套孔法和反射靶板法，该方法通过CCD采集激光光斑，用质心法确定光斑中心，根据激光能量密度分布确定激光光斑半径，进而计算出待测的激光束散角。

It ′ s different from traditional methods of covering hole and projecting target sheet . It uses CCD to grasp facula confirms its centre and radius by analyzing distribution of laser energy density and calculate the result .

用623μJμm~2能量密度照射二细胞期卵裂沟的卵，多数只能发育至原肠胚，少数发育成为头部分化不全的蝌蚪而死亡。

When the cleavage furrow of the two cell stage was irradiated with an energy density of 623 μ J / μ m ~ 2 , most of the embryos died in the gastrula stage .

能量密度谱的长期变化存在大约60a的周期规律。

There are periodic regulation about 60a for secular variation of the energy density spectrum .

用有限元分析法模拟计算Al2O3/GaN的激光剥离，分析了采用不同能量密度脉冲激光辐照时GaN材料内的瞬态温度场分布。

Transient temperature field of GaN material irradiated by pulse laser with different energy density was simulated and analyzed for Al_2O_3 / GaN laser lift-off technique using the finite element method ( FEM ) .

以能量密度为4.68、12.48和18.72J/cm2的He-Ne激光分别照射A、B、C3组小鼠的肝区，D、E组鼠不照射激光。

Low intensity He-Ne laser with different energy density of 4.68 J / cm2, 12.48 J / cm2 and 18.72 J / cm2 was used to irradiate the surface of aging mice ′ s liver of the test groups .

在能量密度为0.05W·mL-1和pH范围3.0～12.0条件下，研究了超声波辐射以及热作用对污泥溶胞效果的影响，考察剩余污泥的溶胞效果与溶胞条件的关系。

The effect of ultrasonic irradiation with energy density of 0.05 W · mL-1 and thermal action on activated sludge cell lysis under pH ranging from 3.0 to 12.0 has been studied experimentally in detail .