搜索结果: 76-90 共查到“知识库 物理学其他学科”相关记录833条 . 查询时间(1.182 秒)
Variable stars magnitudes estimations exploiting the eye physiology
Variable the eye physiology
2011/9/29
The physiology of the dark adaption process of the eye is revisited from an astronomical point of view. A new method for the magnitude estimation of a star is presented. It is based upon the timing of...
A new answer to the Needham Question, or Why Galileo didn't discover universal gravitation
the Needham Question the Scientific Revolution modern physics cultural infrastructure Biblical civilization theory of gravity
2011/9/9
The cultural infrastructure that made possible Galileo’s invention of modern physics is discussed. The brand new element of modern physics is claimed to be firm belief in fundamental structure of the ...
Metric Compatible or Noncompatible Finsler-Ricci Flows
Finsler geometry, Ricci flows, geometric evolution
2011/9/6
There were elaborated different models of Finsler geometry using the Cartan (metric compatible), or Berwald and Chern (metric non朿ompatible) connections, the Ricci flag curvature etc. In a seri...
Students' Views of Macroscopic and Microscopic Energy in Physics and Biology
energy, biology in physics, physics education research
2011/9/7
Energy concepts are fundamental across the sciences, yet these concepts can be fragmented along disciplinary boundaries, rather than integrated into a coherent whole. To teach physics effectively to b...
Characterizing the process of reaching consensus for social systems
Characterizing social systems
2011/9/8
A novel way of characterizing the process of reaching consensus for a social system is given. The foundation of the characterization is based on the theorem which states that the sufficient and necess...
The Swiss Board Directors Network in 2009
Boards of directors Complex networks Corporate governance
2011/9/28
We study the networks formed by the directors of the most important Swiss boards and the boards themselves for the year 2009. The networks are obtained by projection from the original bipartite graph....
Redundancy and cooperativity in the mechanics of compositely crosslinked filamentous networks
filamentous networks Redundancy and cooperativity
2011/9/14
The actin cytoskeleton in living cells has many types of crosslinkers. The mechanical interplay between these different crosslinker types is an open issue in cytoskeletal mechanics. We develop a frame...
Understanding how far information, behaviors, or pathogens spread in social networks is an important problem, having implications for both predicting the size of epidemics, as well as for planning e e...
Robust network community detection using balanced propagation
community detection propagation
2011/9/6
Label propagation has proven to be an extremely fast method for detecting communities in large complex networks. Furthermore, due to its simplicity, it is also currently one of the most commonly adopt...
Optimizing and controlling functions of complex networks by manipulating rich-club connections
Optimizing and controlling functions complex networks rich-club connections
2011/9/6
Traditionally, there is no evidence suggesting that there are strong ties between the rich-club property and the function of complex networks. In this study, we find that whether a very small portion ...
Sybil accounts are fake identities created to unfairly increase the power or resources of a singlemalicious user. Researchers have long known about the existence of Sybil accounts in online communitie...
The strength of strong ties in scientific collaboration networks
scientific collaboration networks
2011/9/6
Network topology and its relationship to tie strengths may hinder or enhance the spreading of information in social networks. We study the correlations between tie strengths and topology in networks o...
A Game Theoretical Approach to Broadcast Information Diffusion in Social Networks
Social Network, Game Theory, Knowledge,Popularity, Trust, Reputation, Rumor.
2011/9/15
One major function of social networks (e.g., massive online social networks) is the dissemination of information, such as scientific knowledge, news, and rumors. Information can be propagated by the u...
Fourier transform based iterative method for x-ray differential phase-contrast computed tomography
X-ray phase-contrast tomography, x-ray refractive index, iterative reconstruction,interior tomography
2011/9/6
Biological soft tissues encountered in clinical and pre-clinical imaging mainly consist of light element atoms, and their composition is nearly uniform with little density variation. Thus,x-ray attenu...