long lived radiation

Fine-structure energy levels and radiative lifetime in Zn-like ions;

类锌离子精细结构能级和辐射寿命

Fine-structure energy levels and radiative lifetime in P-like ions;

类磷离子精细结构能级和辐射寿命

Fine-structure levels, radiative lifetime and various transition parameters for all of the electric dipole(E1), magnetic dipole(M1), eletric quadrupole(E2) and magnetic quadrupole(M2) transitions among the 1772 fine-structure levels .

用加Breit修正和QED修正的全相对论多组态自洽场方法,计算了类镍钼离子MoXV的1s、2s、2p-、2p、3s、3p-、3p、3d-、3d、4s、4p-、4p、4d-、4d、4f-、4f、5s、5p-、5p、5d-、5d、5f-、5f、5g-、5g、6s、6p-、6p、6d-、6d、6f-、6f、6g-、6g轨道的1772个精细结构能级和辐射寿命以及各能级间的电偶极、磁偶极、电四极和磁四极跃迁的跃迁波长、跃迁几率和振子强度,能级的计算值和已知实验值之间的相对误差小于0。

The spontaneous emission lifetime of 5D0 of Eu3+ in Gd2O3 nanocrystalline is significantly affected by the surrounding media,mainly due to the refractive index of the media and the filling factor of the nanocrystalline.

有两种模型可以描述自发辐射寿命与周围介质的相互作用:Onsanger-实腔模型与Lorentz虚腔模型。

The radiative lifetimes of low lying 4f 66s6p and 4f 55d6s 2 levels for Sm atom were determined by means of time resolved laser induced fluorescence using one step excitation.

利用时间分辨激光诱导荧光 (L IF)方法 ,采用一步激发 ,测量钐 (Sm)原子 4f6 6s6p和4f55 d6s2系列的自然辐射寿命 ,并给出能级 1 82 0 9cm- 15G03的寿命值 。

Calculation of Oscillator Strengths and Lifetimes on the Transitions of High Rydbery States of Atom Li

锂原子高里德伯态跃迁的振子强度和辐射寿命

Experimental Study of Natural Radiation Lifetimes and Landé Factors for High-excited 5p7p Levels in Sn I;

锡原子高激发态5p7p能级的自然辐射寿命和朗德因子

Natural Radiative Lifetimes and Landé Factors of Even-parity Levels Along J=1 Rydberg Series in Sn I

锡原子偶宇称J＝1里德堡系列能级的自然辐射寿命和朗德因子

Test method for lifetime of infrared heater

GB/T7287.11-1987红外辐射加热器寿命试验方法

THE ENERGY LEVELS, RADIATIVE TRANSITION PROBABILITIES AND LEVEL LIFETIME FOR Na-LIKE Br TO Rb

溴到铷的类钠离子能级辐射跃迂几率和能级寿命

Radiation Trapping Effect and Measurement of the Rb(5P_(1/2)) Level Effective Radiative Times in the Vapor

Rb蒸气中的辐射陷获效应和5P_(1/2)能级有效寿命的测量

microsec life radioisotope

微秒寿命放射性同位素

short-lived radioisotope

短寿命放射性同位素

millisecond life radioisotope

毫秒寿命放射性同位素

High-tech engineering, electronic computers, even radioactivity are new weapons in a continuing battle to preserve and extend human life.

高科技工程、电子计算机，甚至辐射技术，在这场维持并延长人类寿命的持续战斗中成为新兴武器。

The Effect of Heat Pasteurization and Radurization Combination processing on the Shelf Life and Quality of Ham

加热巴氏杀菌和辐射选择性杀菌联合加工对圆腿货架寿命和产品品质的影响 初报

Applications of Photon Closed-orbit Theory to Oscillations in the Spontaneous or Fluorescence Emission Rate of Atoms or Molecules in a Dielectric Slab System;

光子闭合轨道理论在介质板体系中原子自发辐射和分子荧光寿命问题上的应用

Effect of ~(60)Co-γ Ray Radiation on the Germination Rate and Growth of Tagetes erecta

~(60)Co-γ射线辐射万寿菊对发芽率及生长的影响

Analyzing Probability of Anti-radiation Missile Hitting Moving Radiation Source;

反辐射导弹对移动辐射源的命中概率分析

Ultraviolet radiation threatens other forms of life as well.

紫外线辐射也威胁着其他形式的生命。

actual life

有效寿命,实际寿命

FLUORESCENCE LIFETIME OF THE NEAR-BAND EDGE EMISSION IN ZnSe SINGLE CRYSTAL THIN FILMS

硒化锌单晶薄膜近带边发射的荧光寿命

High Emissivity Ceramic Loatings Can Increase Refractory life;

高发射率陶瓷涂层可延长耐火材料的使用寿命