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Revolution CT单能量成像在不同浓度对比剂中对冠状动脉斑块检出价值的体模研究
单能量成像 体模 斑块 对比剂
2020/10/14
探讨Revolution CT单能量成像在不同浓度对比剂中检出冠状动脉斑块的价值。 方法 选取的体模有编号为3、4、5、6、8、9的6支试管，分别含有20、10、5、2.5、0、13 mg I/mL等不同浓度的碘溶液，每支试管内放有模拟钙化斑块的鱼刺和模拟脂质斑块及纤维斑块的五花肉；分别对体模进行能谱及120 kVp扫描，获得试验组70 keV单能量图像及对照组120 kVp图像；对2组图像斑块检...
Unification and Revolution:A Paradigm for Paradigms
Kuhn incommensurability unification paradigm normal science metaphysics scientific method scientific revolution Popper scientific discovery scientific progress
2016/5/30
On the first of the two occasions I met Thomas Kuhn, we immediately plunged into a ferocious but very friendly argument about incommensurability. He was for it, I was against. Believing in incommensur...
TerraSAR-X and TanDEM-X Revolution in Spaceborne Radar
TerraSAR-X TanDEM-X Revolution Spaceborne Radar
2015/11/20
While Earth Observation from space in the past was mainly focused on scientific purposes, today data and the derived information products are increasingly used for various commercial applications. Pot...
High-Frequency Radar Remote Sensing:The New Revolution in Coastal Oceanography
High-Frequency Radar Remote Sensing New Revolution Coastal Oceanography
2015/8/10
The littoral ocean with its complicated coastline and complex bathymetry poses great challenges to oceanographers, coastal managers, and naval forces that have an ever increasing need to understand an...
Evolution and Revolution in Measuring Ocean Optical Properties
Evolution and Revolution Ocean Optical
2015/8/4
Measuring and interpreting the optical properties of ocean waters has been, and continues to be a challenging endeavor in oceanography. Just as the measurements of temperature~ salinity and density (T...
How the Rational Expectations Revolution has Changed Macroeconomic Policy Research
Rational Expectations Revolution Macroeconomic Policy Research
2015/8/3
How the Rational Expectations Revolution has Changed Macroeconomic Policy Research.
The recent policy shift in China from a pegged to a flexible exchange-rate
regime starts a new chapter in international finance, comparable to the dramatic
end of the Bretton Woods system of pegged ...
The Last Scientific Revolution
dynamic complexity chaos dynamically multivalued behaviour probabilistic dynamical fractal symmetry of complexity revolution of complexity sustainable development
2015/7/29
Critically growing problems of fundamental science organisation and content are analysed with examples from physics and emerging interdisciplinary fields. Their origin is specified and new science str...
Institutions and international trade:lessons from the commercial revolution
Institutions and international trade commercial revolution
2015/7/20
Institutions and international trade:lessons from the commercial revolution。
Many believe that “big data” will transform business, government, and other
aspects of the economy. In this article we discuss how new data may impact
economic policy and economic research. Large-...
The Markov Chain Monte Carlo Revolution。
Then to Now, the CFD Revolution, a Personal and Historical Perspective
Historical Perspective CFD Revolution
2015/6/18
Aside from the contributions of my students to the research of our group, I am
specially indebted to them for their assistance in creating papers and
presentations in electronic form. In recent year...
This presentation draws on a forthcoming book with Elizabeth Olmsted Teisberg (Redefining Health Care: Creating Value-Based Competition on Results, Harvard Business School Press). Earlier publications...
Political Instability and Untimely Dissolution:Partnerships,Corporations,and the Mexican Revolution,1910-1929
Partnerships Political Instability Revolution
2015/4/22
This paper is part of a broader research project on the economic impact of the Mexican Revolution. In this article we make an initial approximation of the effect of the Revolution on the lifespan of c...