辐射吸收
- radiation absorption
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心肌显像剂~(99m)Tc-TBI和~(201)Tl的内照射辐射吸收剂量的计算和比较
Calculation and comparison of the internal radiation absorption dose of myocardial imaging agents ~ ( 99m ) Tc-TBI and ~ ( 201 ) T1
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同时也对强辐射吸收的温升非线性效应进行了分析。
The temperature change non-linear influence derived from the increasing radiation absorption has also been analyzed .
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在参数化过程中,太阳辐射吸收考虑了地形的坡向作用,地表潜热和水汽通量考虑了植被作用,闭合方案采用E-ε能量闭合。
Effects of slope direction and vegetation were taken into consideration for solar radiative absorption and flux of surface latent heat and moisture , respectively , in parameterization .
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目的研究用自制RBC药盒制备的99mTCRBC人体内稳定性和内照射辐射吸收剂量。
Objective To study the in vivo stability of and absorbed radiation dose from 99mTc-RBC , prepared using RBC kit made in our laboratory .
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~(99m)Tc-EC在人体内的辐射吸收剂量的实验研究
Evaluation of ~ ( 99m ) Tc-EC Radiation Dose in Human Body and the Animal Experimental Model
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多官能团单体和y-辐射吸收剂量对PLLA的结晶行为也有所影响。(2)超临界流体C02发泡装置的研制与应用。
Different polyfunctional monomer and irradiation dose did influence the crystallization behavior of PLLA . ( 2 ) Study of batch foaming apparatus via supercritical CO2 .
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在测得放射性核素226Ra、232Th和40K的比活度此基础上,计算了距地面1m高处空气中γ辐射吸收剂量率和年有效剂量率,并对γ辐射外照射水平进行了评价。
To assess the radiological hazard of the natural radioactivity in soil , the absorbed dose rate and annual effective dose rate were calculated .
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方法应用SPECT进行平面配对显像,以自行设计软件计算99Tcm-C50和67Ga在直肠癌和淋巴瘤病人各组织器官的辐射吸收剂量。
Methods Following paired planar imaging with SPECT , radiation absorbed doses of 99 Tcm-C_ 50 and 67 Ga to individual organs or tissues were calculated using self-designed software in patients with rectal cancer or lymphoma .
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结果:99mTc-植酸钠主要累积在肝和肠内,肝和肠的辐射吸收剂量较高,99mTc-MDP所致的器官辐射剂量以骨骼和膀胱的吸收剂量最高,肾脏次之。
Result : 99mTc sodium phytate was accumulated mainly in liver and intestine , so the irradiated absorbed dosage of liver and intestine are high . In 99mTc MDP , the high irradiated absorbed dosage is in bone marrow , bladder and kidneys .
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相对湿度对大气气溶胶可见辐射吸收的影响
Influence of relative humidity on absorption of visible radiation of aerosol
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人体内照射辐射吸收剂量估算结果与文献值相近,按一次给药555MBq计算,各器官的吸收剂量均低于50mGy。
The absorbed radiation dose was lower than the permissible value .
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中国地区云对太阳短波辐射吸收的研究
A Study of the Absorption of Solar Radiation by Clouds over China
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用掺入灵敏元素的辐射吸收法测量燃气的瞬态温度
Measurement of Instantaneous Temperature of Burnt Gas with Trace Element-Added Emission-Absorption Method
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辐射吸收法测量磁流体发电机火焰温度
Measurement of the flame temperature in MHD - generator
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苹果开心树形叶幕太阳辐射吸收规律研究
Study of Solar Radiation and Its Transmission and Diffusion in the Center-open System of Apple
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温控涂料太阳辐射吸收系数的测试方法
Test of Solar Radiation Absorbing Coefficient
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激光深熔焊接小孔内等离子体的反韧致辐射吸收研究
Study on the Inverse Bremsstrahlung Absorption of the Plasma in the Keyhole in Deep Penetration Laser Welding
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讨论了利用平面层大气来代替曲率大气对太阳辐射吸收引起的误差。
The errors are discussed when the spherical shape of the atmosphere is replaced by horizontal approximation .
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选择紫外辐射吸收法作为臭氧浓度在线自动检测系统使用的检测方法。
The ultraviolet ray absorbing law is suitable for the automatic system which online measuring ozone concentration is found .
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同时,采用置换通风与冷却顶板系统的房间,对于地板材料应该选择对长波辐射吸收较低的物质,以减小太阳辐射的影响。
We should pay attention to the choice of the floor material to lower the impact of solar radiation .
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为了能够实时在线连续检测臭氧质量浓度的大小,利用紫外线辐射吸收法来测定臭氧的浓度,给出了单片机系统用于检测臭氧质量浓度的实施方案。
A continuous and real-time testing system based on microcontroller is designed to test ozone mass concentration by UV absorption .
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阳图制版可成像元件包含辐射吸收化合物和在具有亲水性表面的底材上的内层和外层。
Positive-working imageable elements comprise a radiation absorbing compound and inner and outer layers on a substrate having a hydrophilic surface .
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在伽玛刀治疗计划系统中,必须准确快速地计算辐射吸收剂量,制定出治疗计划。
In the gamma knife treatment planning system , the calculation of radiation dose distributions must be done precisely and rapidly .
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而在太阳能平板集热器的表面使用真空玻璃作为盖板,在对于太阳辐射吸收影响不大的情况下,可以大大降低盖板外表面的散热损失,可以显著提高集热器的热转换效率。
And a vacuum glass-cover board can greatly reduce heat loss caused by surface convection , and hence a better transfer efficiency .
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基于辐射吸收的火焰温度计算机断层扫描摄影测量研究同步辐射真空紫外光电离质谱研究乙烯扩散火焰
Flame Temperature Distribution Diagnoses by Infrared-Rays Absorption Computed Tomography ; AN EXPERIMENTAL STUDY OF ETHYLENE DIFFUSION FLAME WITH SYNCHROTRON VUV PHOTOIONIZATION MASS SPECTROMETRY
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本文从热平衡的基本方程出发,提出了混凝土表面太阳辐射吸收系数的测试方法。
Based on basic formulation for thermal balance , an experimental method to measure the solar radiation absorption coefficient of concrete surface is suggested .
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对材料的光辐射吸收的初步研究表明,该材料对1.5~16μm的红外光辐射吸收率不低于80%。
The preliminary experiment shows that the infrared radiation absorptance is more than 80 % at the wavelength range of 1.5 ~ 16 μ m.
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对等离子体振荡与逆韧致辐射吸收作了物理讨论,导出了等离子振荡频率和吸收系数公式。
We discussed physically on plasma oscillation and inverse bremsstrahlung absorption . We obtained formulas of the plasma oscillation frequency and the absorbed coefficient .
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混凝土表面太阳辐射吸收系数是求解混凝土结构温度问题的重要参数之一。
The solar radiation absorption coefficient of concrete surface is one of the important parameters in the analysis of thermal problems in concrete structures .
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根据辐射吸收法测温原理,作者研制了一套燃烧室内燃气瞬态温度测试系统。
The authors of this paper developed a transient temperature measurement system of burnt gas in a combustion chamber based on the theory of absorption-emission .