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ICRP第145号出版物成人网格参考计算体模 （Adult Mesh-type Reference Computational Phantom）
成人网格 参考计算体模 ICRP 第145号出版物 剂量系数计算
2023/3/9
继2007年建议(第103号出版物)之后，ICRP在第110号出版物(2009年)和第143号出版物(2020年)中发布了用于剂量系数计算的体素参考计算体模(VRCPs)系列。 基于真人CT图像的VRCPs改进了解剖学和剂量学，而不是在2007年建议之前用于剂量系数计算的老式数学(或风式化)体模。然而，这种由体素大小固定的体素组成的体素体模在表示某些解剖结构，特别是那些比体素尺寸更小或更薄的体素体...
In 2008 Satoshi Nakamoto invented the basis for what would come to be known as blockchain technology. The core concept of this system is an open and anonymous network of nodes, or miners, which togeth...
Empty calories and phantom fullness: a randomized trial studying the relative effects of energy density and viscosity on gastric emptying determined by MRI and satiety
energy content fullness gastric emptying MRI viscosity
2018/12/3
Background: Stomach fullness is a determinant of satiety. Although both the viscosity and energy content have been shown to delay gastric emptying, their relative importance is not well understood.
Phantom word activation in L2
Word recognition Activation Competition Listening L1 L2 Phantom words
2015/4/3
L2 listening can involve the phantom activation of words which are not actually in the input. All spoken-word recognition involves multiple concurrent activation of word candidates, with selection of ...
University of Queensland researchers have discovered antibiotic-resistant bacteria in the Middle East which is cloaking itself in genetic material to avoid detection and placing the population at incr...
The Effects of Tachyonic and Phantom Fields in the Intermediate and Logamediate Scenarios of the Anisotropic Universe
Tachyonic and Phantom Fields Universe
2011/9/2
In this work, we have analyzed two scenarios namely, “intermediate” and “logamadiate” scenarios for closed, open and flat anisotropic universe in presence of phantom field, normal tachyonic field and ...
Thermodynamics of phantom energy in the presence of a Reissner-Nordstrom black hole
Phantom energy Reissner-Nordstr¨om black hole Generalized second law of thermodynamics
2011/8/31
In this paper, we study the validity of the generalized second law (GSL) in phantom dominated universe in the presence of a Reissner-Nordstr¨om (RN) black hole. Our study is independent of the origin ...
F-4原是美国麦克唐纳公司(现并入麦克唐纳·道格拉斯公司)为美国海军研制的双座远程舰载战斗机，后来美国空军也大量采用，成为美国空海军60～70年代的通用主力战斗机。1956年开始设计，1958年5月原型机试飞，1961年10月开始交付海军使用，1963年11开始进入空军服役。F-4不但空战能力好，对地攻击能力也很强，是60年代以来美国生产数量最多的战斗机。F-4的主要型别有：A型，舰载防空型，生产...
The Phantom Gender Difference in the College Wage Premium
Phantom Gender Difference College Wage Premium
2016/3/8
A growing literature seeks to explain why so many more women than men now attend college. A commonly cited stylized fact is that the college wage premium is, and has been, higher for women than for me...
In this paper, we have constructed a (2+1)-dimensional wormhole using inhomogeneous and anisotropic distribution of phantom energy. We have determined the exact form of the equation of state of phanto...
Elasto-mammography: Theory, Algorithm, and Phantom Study
Elasto-mammography Algorithm Phantom Study
2009/9/8
A new imaging modality framework, called elasto-mammography, is proposed to generate the elastograms of breast tissues based on conventional X-ray mammography. The displacement information is extracte...
Tachyonic field interacting with Scalar (Phantom) Field
acceleration tachyonic field scalar field phantom field
2010/7/5
In this letter, we have considered the universe is filled with the mixture of tachyonic field and scalar or phantom field. If the tachyonic field interacts with scalar or phantom field, the interactio...
Newer Studies of Radiation Exposure in Cephalometric Roentgenography Utilizing the Rando Head Phantom
Radiation Exposure Cephalometric Roentgenography e Rando Head Phantom
2009/3/9
Newer Studies of Radiation Exposure in Cephalometric Roentgenography Utilizing the Rando Head Phantom.
多重指数势的phantom字宙学
相空间 phantom big rip吸引子
2008/12/12
利用相空间方法研究具有Ⅳ个标量场的多重指数势的phantom动力学模型．特别地，作者详细研究了N=2的phantom宇宙学，指出在给定势的条件下允许存在bigrip吸引子．
具有双重指数势的phantom宇宙学
Phantom de Sitter吸引子 异宿轨线 M理论
2008/12/11
利用相空间分析方法，系统研究了具有双重指数势的phantom动力学．主要目的在于研究由M理论引起的势，但同时还分析了指数势中系数比为正的所有可能情况．根据宇宙的晚期行为，给出了解的完整分类．与quintessence情形相反，该体系存在异宿轨线解.