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Analysis of Urban Functional Characteristics of Urban Agglomeration: A Case Study of Changsha-Zhuzhou-Xiangtan Urban Agglomeration  [PDF]
Jiayi Zhao
Chinese Studies (ChnStd) , 2017, DOI: 10.4236/chnstd.2017.62008
Abstract: Bearing the responsibility of the rising strategy of central region of China, Changsha-Zhuzhou-Xiangtan Urban Agglomeration is an important growth pole of the development of the Yangtze river economic belt. Reasonable position of urban function in Changsha-Zhuzhou-Xiangtan Urban Agglomeration, is an inevitable requirement for the cooperative development of regional economy in Changsha, Zhuzhou and Xiangtan. This paper takes the basic economic activities of these cities as the starting point to determine the urban function. Subsequently, this paper uses the related statistical data, introduces multivariate statistical analysis method, such as regression analysis, factor analysis and cluster analysis to clarify the function of 20 cities in Changsha-Zhuzhou-Xiangtan Urban Agglomeration. The findings reveal that the most common functions of the regional urban agglomeration are construction, transportation, postal services, finance, real estate, manufacturing, social services, wholesale and retail industry. At the same time, the paper classifies these 20 cities according to the urban function. The classification results provide the basis for accelerating Changsha-Zhuzhou-Xiangtan Urban Agglomeration construction of urban function.
The Discrete Agglomeration Model: Equivalent Problems  [PDF]
James L. Moseley
Applied Mathematics (AM) , 2012, DOI: 10.4236/am.2012.311236
Abstract: In this paper we develop equivalent problems for the Discrete Agglomeration Model in the continuous context.
The Rohlin property for automorphisms of the Jiang-Su algebra  [PDF]
Yasuhiko Sato
Mathematics , 2009,
Abstract: For projectionless C*-algebras absorbing the Jiang-Su algebra tensorially, we study a kind of the Rohlin property for autmorphisms. We show that the crossed products obtained by automorphisms with this Rohlin property also absorb the Jiang-Su algebra tensorially under a mild technical condition on the C*-algebras. In particular, for the Jiang-Su algebra we show the uniqueness up to outer conjugacy of the automorphism with this Rohlin property.
Agglomeration of microparticles in complex plasmas  [PDF]
Cheng-Ran Du,Hubertus Thomas,Alexei Ivlev,Uwe Konopka,Gregor Morfill
Physics , 2010, DOI: 10.1063/1.3495979
Abstract: Agglomeration of highly charged microparticles was observed and studied in complex plasma experiments carried out in a capacitively coupled rf discharge. The agglomeration was caused by strong dust density waves triggered in a particle cloud by decreasing neutral gas pressure. Using a high-speed camera during this unstable regime, it was possible to resolve the motion of individual microparticles and to show that the relative velocities of some particles were sufficiently high to overcome the mutual Coulomb repulsion and hence to result in agglomeration. After stabilising the cloud again through the increase of the pressure, we were able to observe the aggregates directly with a long-distance microscope. We show that the agglomeration rate deduced from our experiments is in good agreement with theoretical estimates. In addition, we briefly discuss the mechanisms that can provide binding of highly charged microparticles in a plasma.
Agglomeration of Charged Nanopowders in Suspensions  [PDF]
J. H. Werth,M. Linsenbuehler,S. M. Dammer,Z. Farkas,H. Hinrichsen,K. -E. Wirth,D. E. Wolf
Physics , 2002,
Abstract: The aim of this work is to understand agglomeration of charged powders suspended in nonpolar fluids. The concerted influence of electromagnetic, hydrodynamic and van der Waals forces as well as Brownian motion leads to a complex agglomeration behaviour which depends on several parameters, e.g., the ratios of electric charges, particle sizes, temperature and concentrations of the particles. Both experimental and theoretical considerations are presented.
Polarization Versus Agglomeration  [PDF]
Vitor Joao Pereira Domingues Martinho
Quantitative Finance , 2011,
Abstract: The aim of this paper is to analyze the processes of polarization and agglomeration, to explain the mechanisms and causes of these phenomena in order to identify similarities and differences. As the main implication of this study should be noted that both process pretend to explain the concentration of economic activity and population in certain places, through cumulative phenomena, but with different perspectives, in other words, the polarization with a view of economic development and agglomeration with a perspective of space.
The Jiang-Su algebra revisited  [PDF]
Mikael Rordam,Wilhelm Winter
Mathematics , 2008,
Abstract: We give a number of new characterizations of the Jiang-Su algebra Z, both intrinsic and extrinsic, in terms of C*-algebraic, dynamical, topological and K-theoretic conditions. Along the way we study divisibility properties of C*-algebras, we give a precise characterization of those unital C*-algebras of stable rank one that admit a unital embedding of the dimension-drop C*-algebra Z_{n,n+1}, and we prove a cancellation theorem for the Cuntz semigroup of C*-algebras of stable rank one.
Outsider Trading  [PDF]
Dorje C. Brody,Julian Brody,Bernhard K. Meister,Matthew F. Parry
Quantitative Finance , 2010,
Abstract: In this paper we examine inefficiencies and information disparity in the Japanese stock market. By carefully analysing information publicly available on the internet, an `outsider' to conventional statistical arbitrage strategies--which are based on market microstructure, company releases, or analyst reports--can nevertheless pursue a profitable trading strategy. A large volume of blog data is used to demonstrate the existence of an inefficiency in the market. An information-based model that replicates the trading strategy is developed to estimate the degree of information disparity.
Midden Excavation in Theory and Practice: a Han period midden site at Tung Wan Tsai, Ma Wan Island, Hong Kong
Pamela Rumball Rogers,Ellen Widowson
Papers from the Institute of Archaeology , 1996, DOI: 10.5334/pia.96
Abstract: The site of Tung Wan Tsai is situated on the northeast corner of Ma Wan Island, which in turn lies off the northeast corner of Lantau, the largest of the many islands that make up Hong Kong.
The Jiang-Su algebra does not always embed  [PDF]
Marius Dadarlat,Ilan Hirshberg,Andrew S. Toms,Wilhelm Winter
Mathematics , 2007,
Abstract: We exhibit a unital simple nuclear non-type-I C*-algebra into which the Jiang-Su algebra does not embed unitally. This answers a question of M. R{\o}rdam.
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