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A Decomposition Approach for Fixed Channel Assignment Problems in Large-Scale Cellular Networks
Jin, Ming-Hui,Wu, Eric Hsiao-Kuang,Horng, Jorng-Tzong The Korea Institute of Information and Commucation 2003 Journal of communications and networks Vol.5 No.1
Due to insufficient available bandwidth resources and the continuously growing demand for cellular communication services, the channel assignment problem has become increasingly important. To trace the optimal assignment, several heuristic strategies have been proposed. So far, most of them focus on the small-scale systems containing no more than 25 cells and they use an anachronistic cost model, which does not satisfy the requirements ity. Solving the small-scale channel assignment problems could not be applied into existing large scale cellular networks' practice. This article proposes a decomposition approach to solve the fixed channel assignment problem (FCAP) for large-scale cellular networks through partitioning the whole cellular network into several smaller sub-networks and then designing a sequential branch-and-bound algorithm that is made to solve the FCAP for them sequentially. The key issue of partition is to minimize the dependences of the sub-networks so that the proposed heuristics for solving smaller problems will suffer fewer constraints in searching for better assignments. The proposed algorithms perform well based on experimental results and they were applied to the Taiwan Cellular Cooperation (TCC) in ChungLi city to find better assignments for its network.
IBM Zigbee Positioning Method for Smart Home Applications
Ming-Hui Jin,Chung-Jung Fu,Chih-Hao Yu,Hung-Ren Lai,Ming-Whei Feng 보안공학연구지원센터 2008 International Journal of Smart Home Vol.2 No.2
This paper presents a smart home system prototype which employs an indoor positioning system called the III Beacon Match (I3BM) positioning method to intelligently trigger the appropriately services for the home members. To overcome the ninja problem in the I3BM method, the signal filtering, adjustment and smooth procedures are proposed. The proposed system prototype employs the Zigbee module to implement the prototypes of the components for the I3BM positioning method, and the prototypes had passed the ZigBee Compliant Platform (ZCP) certification test. The proposed system prototype which intelligently controls the air condition and light system for smart home applications is also verifying in our demo room and in the smart house in National Taiwan University.
Jin, Ming Yu,Kim, Sun Min,Mao, Hui,Ryu, Do Hyun,Song, Choong Eui,Yang, Jung Woon Royal Society of Chemistry 2014 Organic & Biomolecular Chemistry Vol.12 No.10
<P>We found that chemoselectivity of the crossed acyloin product is controlled by the adjustment of the aromatic aldehyde/aliphatic aldehyde ratio. Moreover, we observed the persistent catalytic activity of the homogeneous NHC catalyst in a solution due to NHC catalyst robustness.</P> <P>Graphic Abstract</P><P>Chemoselectivity of the crossed acyloin product is controlled by the adjustment of the aromatic aldehyde/aliphatic aldehyde ratio. <IMG SRC='http://pubs.rsc.org/services/images/RSCpubs.ePlatform.Service.FreeContent.ImageService.svc/ImageService/image/GA?id=c3ob42486c'> </P>
( Jin Zhou Zhu ),( Yu Ming Wang ),( Chao Hui Yu ),( You Ming Li ) 대한내과학회 2014 대한내과학회 추계학술대회 Vol.2014 No.1
Background: Fatty liver is a growing health issue in China. However, the research concerning the infi uence of economic development on the prevalence of fatty liver was sparse. This study is to investigate the relation between economic status and the adult prevalence of fatty liver in the mainland of China. Methods: Literature searches on PubMed, EMBASE, Web of Science and Chinese National Knowledge Infrastructure databases were performed to identify eligible studies published before July 10, 2014. Gross domestic product (GDP) per capita was chosen to assess the economic status. The correlations were obtained by Pearson coeffi cient. Results: 27 studies, from 22 cities and 2 provinces from 1995 to 2013, were included in this study. In general, the prevalence of fatty liver presented a signifi cant correlation with GDP per capita (r = 0. 459, P = 0. 016). To be specifi c, the prevalence in north China correlated with GDP per capita (r = 0. 879, P = 0. 05) and survey year (r = 0. 909, P = 0. 032). In south China, on the contrary, the prevalence failed to correlate with the two indicators. According to the data from multiple years, the city of Shanghai witnessed an ascending prevalence. In terms of gender, the prevalence of female correlated with GDP per capita (r = 0. 572, P = 0. 004) and survey year (r = 0. 483, P = 0. 020). Meanwhile, there was no correlation between the prevalence of male and GDP per capita (P = 0. 129) or survey year (P = 0. 358). Conclusions: In the mainland of China, higher GDP per capita suggested higher adult prevalence of fatty liver, based on the data in the past 20 years. With the development of economy, public health interventions, thus, are essential to prevent the trend of obesity and alcohol abuse.
Case Report : Full-thickness Sclerotomy for Uveal Effusion Syndrome
( Ming Ui Kong ),( Jae Hui Kim ),( Sang Jin Kim ),( Se Woong Kang ) 대한안과학회 2013 Korean Journal of Ophthalmology Vol.27 No.4
To report the surgical outcome of full-thickness sclerotomy in five cases of uveal effusion syndrome (UES). Full-thickness sclerotomy without sclerectomy was performed on five eyes of four patients with UES with or without nanophthalmos. In four of the eyes, exudative retinal detachment associated with UES resolved after the sclerotomy. The subretinal fluid in one eye, which had a normal axial length, was relieved after undergoing three sclerotomy procedures. Full-thickness sclerotomy without vortex vein decompression or sclerectomy is an effective surgical option for the management of significant UES.
Research on Multiple Cell Linear Parameter Varying Model Predictive Control
Ming Zhao,Hui Li,Yun Li,Hao Jin 보안공학연구지원센터 2016 International Journal of Multimedia and Ubiquitous Vol.11 No.2
To improve the accuracy of model predictive control, this paper presents an improved multiple cell linear parameter varying model predictive control method for carrier-based aircraft. After establishing the lateral dynamic model of carrier-based aircraft for multiple cell predictive controller, the output-feedback linear parameter varying control based on states observation should be implemented. The model simulation results indicate the better performance of the new method in comparison with the traditional controller with more accuracy and practicability.