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1.Bio-Inspired Computation and Optimization: An Overview

Author:Yang,Xin She;Chien,Su Fong;Ting,Tiew On

Source:Bio-Inspired Computation in Telecommunications,2015,Vol.

Abstract:All design problems in telecommunications can be formulated as optimization problems, and thus may be tackled by some optimization techniques. However, these problems can be extremely challenging due to the stringent time requirements, complex constraints, and a high number of design parameters. Solution methods tend to use conventional methods such as Lagrangian duality and fractional programming in combination with numerical solvers, while new trends tend to use evolutionary algorithms and swarm intelligence. This chapter provides a summary review of the bio-inspired optimization algorithms and their applications in telecommunications. We also discuss key issues in optimization and some active topics for further research.

2.Bio-Inspired Computation in Telecommunications

Author:Yang,Xin She;Chien,Su Fong;Ting,Tiew On

Source:Bio-Inspired Computation in Telecommunications,2015,Vol.

Abstract:Bio-inspired computation, especially those based on swarm intelligence, has become increasingly popular in the last decade. Bio-Inspired Computation in Telecommunications reviews the latest developments in bio-inspired computation from both theory and application as they relate to telecommunications and image processing, providing a complete resource that analyzes and discusses the latest and future trends in research directions. Written by recognized experts, this is a must-have guide for researchers, telecommunication engineers, computer scientists and PhD students.

3.Gothic forms of time: Architecture, Romanticism, Medievalism


Source:Romantic Gothic: An Edinburgh Companion,2015,Vol.

4.Media Coverage and Stock Returns: Evidence from Chinese Cross-Listed Firms


Source:Experiences and Challenges in the Development of the Chinese Capital Market,2015,Vol.

5.Factor prices and geographical economics

Author:Brakman,Steven;Van Marrewijk,Charles

Source:Handbook of Research Methods and Applications in Economic Geography,2015,Vol.

Abstract:A key result in neoclassical trade theory, or the Heckscher–Ohlin model, is the so-called factor price equalization theorem (FPE; see Leamer, 2012 for a survey). It states that countries engaged in free trade that produce the same set of commodities, using similar techniques, have identical factor prices. This is a surprising result if one considers that in this stylized neoclassical world, countries that differ with respect to factor supplies still have the same factor prices. This result implies that, for example, (il)legal immigrants do not affect local wages. The differences in factor supplies are absorbed by differences in the commodity bundle that a country produces. In equilibrium, a labor-abundant country produces more of the labor-intensive commodity, and the capital-abundant country more of the capital-intensive commodity. So an inflow of migrants does not lower wages because this inflow increases production of the labor-intensive commodity and thereby raises demand for labor. Consumers are not affected either because international trade corrects for the differences in local supply and demand (the excess supply of the labor-intensive commodity is traded in order to restore equilibrium). In a closed economy this outcome is not possible because an increase in labor supply and the resulting increase of the production of the labor-intensive commodity would lower its price and also wages. If this seems too good to be true, this opinion is correct. FPE is a mathematical result that has produced an enormous (empirical) literature, but, as observed by Leamer and Levinsohn (1995, p. 1357), ‘the real question isn’t whether FPE is true or not. Trust us, it isn’t true. The real question is what causes the violations we observe.’ In addition there is also no unambiguous evidence of global convergence of factor prices (Milanovic, 2005).

6.Empirical studies in geographical economics

Author:Chang,Han Hsin;Van Marrewijk,Charles;Schramm,Marc

Source:Handbook of Research Methods and Applications in Economic Geography,2015,Vol.

Abstract:Since the seminal work of Krugman (1991) led the way, many researchers have further analyzed and explained the intricate connections between international trade flows, factor mobility, agglomeration and production; see Brakman et al. (2009) for an overview of the literature. As explained in Brakman and Van Marrewijk (Chapter 3 of this volume), there are now three ‘core’ models of new economic geography, or ‘geographical economics’, as we prefer to label it: (i) Krugman’s model based on labor mobility; (ii) the solvable human capital model based on Forslid and Ottaviano (2003); and (iii) the intermediate goods model based on Krugman and Venables (1995). All these models give rise to similar dynamics and core–periphery patterns with path-dependency and multiple long-run equilibria. This chapter focuses on empirical studies that stay relatively close to the core models in geographical economics. Our contribution is limited to providing an update of the contributions regarding four key features of geographical economics as identified by Head and Mayer (2004a, p. 2616): A large market potential raises local factor prices. ● A large market will increase demand for local factors of production and this raises factor rewards. Regions surrounded by or close to regions with high real income (indicating strong spatial demand linkages) will have relatively higher wages. ● A large market potential induces factor inflows. Footloose factors of production will be attracted to those markets where firms pay relatively high factor rewards. In the Krugman core model footloose workers move to the region with highest real wage and similarly firms prefer locations with good market access. ● Reduction in trade costs induces agglomeration, at least beyond a critical level of transport or trade costs. For a large range of transport costs a change in these costs may not lead to a change in the equilibrium degree of agglomeration, but if a shock moves the economy beyond its break or sustain point the economy goes from spreading to agglomeration, or vice versa, respectively. This also implies that more economic integration (interpreted as a lowering of transport costs) should at some point lead to (more) agglomeration of the footloose activities and factors of production. ● Shock sensitivity. Changes in the economic environment can (but need not!) trigger a change in the equilibrium spatial distribution of economic activity. This hypothesis goes to the heart of the idea that geographical economics models are characterized by multiple equilibria.

7.Neighbourhood determinants for life satisfaction of older people in Beijing


Source:Mobility, Sociability and Well-Being of Urban Living,2015,Vol.

Abstract:Demographic change and ageing societies are an increasingly critical issue for researchers and policymakers across the world and in particular in China, where the government’s population control strategies have since the late 1970s substantially changed social and demographic structures. At the same time, the traditional role of families in caring for elderly people is diminishing. In this situation, the neighbourhood as a living environment and as a platform for service provision is growing in importance for the elderly. Building on the authors’ previous proposition that age-friendly urban planning needs to take differences between neighbourhood types into account, the objective of this study is to identify which neighbourhood factors concretely contribute to the life satisfaction of seniors in different Beijing neighbourhoods. For this purpose, we used structural equation modelling (SEM) and found social support to be the primary neighbourhood factor affecting life satisfaction amongst the urban elderly in Beijing. We then differentiated between aged neighbourhoods with a high number of older people and others with less elderly residents, and found dwelling conditions and community-provided senior services to be additional critical indicators of satisfaction in the former and accessibility to services in the latter. Accordingly, we suggest tailoring government interventions that aim at age-friendly environments differently in different neighbourhoods.

8.Hybrid metaheuristic algorithms: Past, present, and future

Author:Ting,T. O.;Yang,Xin She;Cheng,Shi;Huang,Kaizhu

Source:Studies in Computational Intelligence,2015,Vol.585

Abstract:Hybrid algorithms play a prominent role in improving the search capability of algorithms. Hybridization aims to combine the advantages of each algorithm to form a hybrid algorithm, while simultaneously trying to minimize any substantial disadvantage. In general, the outcome of hybridization can usually make some improvements in terms of either computational speed or accuracy. This chapter surveys recent advances in the area of hybridizing different algorithms. Based on this survey, some crucial recommendations are suggested for further development of hybrid algorithms.

9.Bio-Inspired Approaches in Telecommunications

Author:Chien,Su Fong;Zarakovitis,C. C.;Ting,Tiew On;Yang,Xin She

Source:Bio-Inspired Computation in Telecommunications,2015,Vol.

Abstract:Bio-inspired algorithms are modern optimization tools that are capable of solving complex design problems in many applications. Such algorithms aim to speed up the optimization process so as to tackle tougher optimization problems. Some of these algorithms, such as particle swarm optimization and cuckoo search, have been found to be much more feasible and practical in obtaining the optimal solution, compared to conventional mathematical methods. In this chapter, we will review design problems and their solution methods concerning resource and power allocations in orthogonal frequency division multiple access systems.

10.The role of foreign firms in China’s urban transformation A case study of Suzhou

Author:Kim, Hyung Min

Source:Population Mobility, Urban Planning and Management in China,2015,Vol.

Abstract:To a large extent the Chinese government has relied upon foreign direct investment (FDI) to stimulate economic growth. Inward FDI, which has expanded massively in China after the opening up policy, is significant to Chinese cities at least in the following three aspects. First, inward FDI contributes to economic vitality as it involves production in cities. Second, the establishment of foreign firms has facilitated rural-to-urban migration, and thus stimulated urban growth. As inward FDI is mostly labour-intensive manufacturing, an influx of foreign capital has been accompanied by an increase in the number of rural migrants. Third, foreign firms have brought foreign nationals to Chinese cities, thus creating demand for multicultural services and adding to the vibrancy of the city. This chapter examines these three outcomes at China’s national level using Suzhou as a case study. © Springer International Publishing Switzerland 2015.

11.Structural diversity, surface composition, and redox behavior in the LA0.6SR0.4CoO3-PrO2-delta system

Author:Konysheva, Elena Yu. ; Bukaemskiy, Andrey A. ; Kuznetsov, Michail V. ; Ma, Tianzheng ; Ermolenko, Yurii E.

Source:Advances in Chemistry Research,2015,Vol.25

Abstract:Phase composition, crystal structure of components, surface composition, and redox behavior were explored in the (100-x) La0.6Sr0.4CoO3-xPrO2-δ (LSCPx) system under air. At high temperatures, a fraction of La0.6Sr0.4CoO3 perovskite phase interacts with praseodymium oxide, forming a new layered perovskite-like phase relating to the Ruddlesden-Popper family of An+1BnO3n+1 compounds with n=1. The Ruddlesden-Popper phase with K2NiF4-type structure (I4/mmm, no.139) exists in a wide compositional range. At room temperature the LSCPx (2 ≤ x ≤ 40) are two-phase compositions, comprising of the perovskite phase with rhombohedral distortion ( R3c, no. 167) and Ruddlesden-Popper phase. Evolution of lattice parameters for both perovskite and Ruddlesden-Popper phases with the raise in the Pr content was discussed. La0.93Sr0.62Pr0.45CoO4 compound with Ruddlesden-Popper structure was synthesized. Both single phase La0.93Sr0.62Pr0.45CoO4 and newly formed Ruddlesden-Popper phase in the two-phase LSCPx (2 ≤ x ≤ 40) exhibit similar behavior with the temperature variation (25-820oC) the expansion of the unit cell along the c-axis is noticeably stronger than within the a-b plain. X-ray photoelectron spectroscopy study indicates stronger accommodation of Sr cations within the Ruddlesden-Popper structure. Surface depletion in Co decreases in the two-phase LSCPx compositions with the raise in the fraction of the phase with the Ruddlesden-Popper structure, assuming that the presence of a second phase can facilitate the re-arrangement of cations between the volume and surface. The total oxygen exchange between the gas phase and the two-phase LSCPx (2 ≤ x ≤ 20) compositions decreases gradually with the increase in Pr content in the composites and it becomes almost negligible in the LSCPx (20 ≤ x ≤ 40). This result is unexpected and could be associated with the simultaneous involvement of Pr and Co cations in the redox process. © 2015 Nova Science Publishers, Inc.

12.A framework for operational agility: How SMEs are evaluating their supply chain integration


Source:Managing in a VUCA World,2015,Vol.

Abstract:This chapter seeks to show how small medium enterprises (SMEs) have become more responsive to deal with the unexpected changes in the business environment. However, the impact on SME's is not always clear, as resources required to implement such strategic responsiveness are often fall beyond what is considered to be acceptable risk. In this chapter an integrated approach is proposed to facilitate the 'responsiveness' when faced with uncertainty and environmental turbulences in supply chain design thus contributing to the notion of Operational Agility and Supply Chain Integration (SCI). The framework is based on earlier work developed by the authors, which focused on the integration of operational agility tools and techniques through external intervention. An implementation model is presented in which the practical aspects of the framework stages are presented. The framework is validated through case study observations, a number of issues raised in the framework are discussed and validated.

13.Complexity, scientific creativity and clustering

Author:Andersson,Åke E.;Andersson,David Emanuel;Harsman,Björn;Daghbashyan,Zara

Source:The Rise of the City: Spatial Dynamics in the Urban Century,2015,Vol.

Total 13 results found
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