衰减订正,Attenuation correction
1)Attenuation correction衰减订正
1.Application of mountain returnPIA to the attenuation correctionof 3-cm weather radar data;山回波的PIA因子在3cm雷达波衰减订正中的应用
2.With the KZS algorithm the wavelet attenuation correction of the X-band weather radar is realized by using the ground-clutter echo as the criterion.用KZS算法(地物回波)做标准来实现X波段气象雷达回波的微波衰减订正。
3.It is corrected that attenuation correction techniques in heavy and big-scale moderate rainfall events,and the comparison analysis between gauge rainfall and estimation of radar rainfall before and after attenuation.利用昆明多普勒天气雷达资料,采用迭代订正方法对强降水和大范围中等强度降水引起雷达信号的衰减情形进行了订正研究,同时对比分析了衰减订正前后的雷达测量降水与自动雨量站逐小时累计的雨量资料。
英文短句/例句
1.A Study on the Algorithms for Making Attenuation Correction to Observations of Weather Radar Reflectivity Factor and Their Applications;天气雷达回波衰减订正算法的研究及其应用
2.Attenuation Correction of Reflectivity for X-Band Dual Polarization RadarX波段双线极化雷达反射率的衰减订正
3.Attenuation Correction of Radar Differential Reflectivity for X-Band Dual Polarization RadarX波段双线极化雷达差分反射率的衰减订正
4.calibrating set for resistance attenuator电阻衰减器校正装置
5.pair attenuation coefficient正负电子对衰减系数
6.Facing up to the phenomenon of slight and short tones;Reexamining and revising words with slight and short tones;正视轻声衰颓现象 重新审订轻声词
7.The nonlinear wave shape degenerates to a sinusoidal wave.非线性波形衰减成正弦波。
8.Revise for fourier transform of exponential decay signal指数衰减信号的Fourier变换修正
9.Analysis on an exponential attenuation factor in the modified Friedlander equation by overpressure tests修正的Friedlander方程指数衰减因子
10.Beam Hardening Correction Algorithm Based on Material Attenuation in Computed Tomography基于材料衰减特性的CT硬化校正算法
11.attenuation compensator衰减均衡器衰减补偿器
12.The Verification for the Ultrasonic Attenuation Estimation in Vivo Using the DRC Method差比校正法体内声衰减测试的临床验证
13.Attenuation of SPECT/PET and Application in Differentiation of TCM;SPECT/PET衰减校正的实验研究及在临床中的应用
14.Study on Attenuation Rule of Velocity Wave Based on Orthogonal Experimental Method基于正交试验方法的速度波衰减规律研究
15.Application of Correction Technique by Autoregressive Model with Memory Attenuated RLS Algorithm on Flood Forecasting of a River Network河网洪水预报的衰减二乘自回归校正应用
16.Beam Attenuation Grid-based Scatter Correction Method for Cone Beam CT基于射束衰减网格的锥束CT散射校正方法
17.Artifacts in CT-based Attenuation Correction Myocardial Perfusion SPECT:A Preliminary Study心肌灌注显像CT衰减校正伪影产生的初步研究
18.attenuation box衰减器箱，衰耗器箱
相关短句/例句
Algorithms for attenuation correction衰减订正算法
1.The results show that these algorithms for attenuation correction can work well in the valid range and their effects on attenuation correction are almost identical.本文从衰减订正算法的理论研究入手，详细探讨了几种衰减订正算法的优缺点，并在实际资料中对几种算法进行了应用。
3)atmospheric attenuation correction大气衰减订正
4)attenuation correction衰减校正
1.In this paper we present a modified algorithm of CT-Basedattenuation correction for PET/CT Scanners in the presence of contrast agent,which can lead to unbiased result for the estimation of emission activity in these cases.PET/CT扫描一般直接将CT透射扫描数据用于PET发射扫描的衰减校正,但是在有口服造影剂使用的场合,常规的衰减校正算法对PET扫描结果会带来约20%的正偏差。
2.The CT option can makeattenuation correction to SPECT image or coincidence PET image, which makes the image of nuclear medicine closer to the real situation of distribution of radioactive nuclide in patients.该CT能完成对SPECT图像或符合线路PET图像的衰减校正,使核医学图像能更接近的反映核素在人体内的真实分布情况。
3.Some new advances of research and clinical study on PET/CT were summarized briefly,including the choice of crystals,development of CT,radiotherapy plan,attenuation correction with CT,respiratory motion and CT contrast induced artifacts.本文简要介绍PET/CT有关的几个技术问题和临床应用方面的新进展,如晶体的选择、CT技术进展、放射治疗、衰减校正、呼吸运动及CT造影剂的影响等。
5)Positive decay solution衰减正解
6)regularity attenuation正规衰减
延伸阅读
《第二次订正比奈－西蒙测验说明书》陆志韦、吴天敏修订。商务印书馆1936年出版。陆志韦1924年曾以美国心理学家L.M.特曼19修订的斯坦福－比奈智力量表为蓝本，修订出版了《订正比奈－西蒙智力测验说明书》,第一次将比奈-西蒙智力测验引入中国。但是，这个测验的词句都是江浙一带的，北方儿童听不懂，而且，随着时间的发展，这个测验的有些题目已不合适，需要增删修改。所以陆志韦和吴天敏又修订出版了这本测验。这个测验是一种测定个人智力的年龄量表，共有54题,分语言文字、数目、图解和技巧4类。因这些题中有些可以不同标准应用于不同年龄组,实际上有75题。3～11岁每岁6题,通过一题合智龄两个月。12岁和13岁每岁3题，14岁和15岁共9题，16～18岁共9题，每题都合4个月的智龄。记分可按积分计算,也可按智龄分数计算。知道智龄分数又可计算出智商来。测验订正者指出，本测验适用于6～14岁的儿童，6岁以下、14岁以上的儿童虽可使用，但不及6～14岁儿童准确。本测验除列测验题外，还有测验必备、测验手续、求实足年龄的方法、积分量表几项，以及各岁儿童测验时之起点及其应加之月龄、各试题在积分量表应给之分数和智慧年龄、智慧分数对照表等3个附表。智力测验的研究和应用在中国中断了20多年。到了70年代末,本测验的订正者之一吴天敏又第3次订正比奈－西蒙测验，称为《中国比奈测验》，1978年由北京大学出版社出版。
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