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Flood Disaster Risk Simulation in Urban Areas in Chaclacayo district, Peru
Castillo Osorio, Ever Enrique,Yoo, Hwan Hee 대한공간정보학회 2018 대한공간정보학회지 Vol.26 No.2
Many urban areas are vulnerable to hazards produced by natural disasters specially floods that are currently increasing. For this reason, prevention efforts must focus on reducing disaster risks when they happen. These actions are applied to land areas; therefore the geographic data are valuable to improve them, because they give the spatial location of the elements in the terrain. Likewise, the hydrological simulation models provide a perspective of the possible vulnerable areas impacted by floods. In order to achieve the improvement of flood disaster risk prevention activities, we propose a methodology for the hydrological simulation of flood scenarios using HecRAS tool. In this methodology we define the geometrical conditions of the cartographic data, use Gumbel`s distribution method for the processing of hydrological data, and develop the hydrological simulation process applying geomorphological and fluid mechanics parameters. The results of the hydrological simulation and the cartographic data are stored in a flexible geodatabase designed by us, using standards and protocols based on open source, which allows their collection, processing and dissemination. We apply the proposed methodology to a case study and develop the hydrological modeling for three simulation scenarios, to calculate the flooding urban areas in Chaclacayo district located in Peru.
Castillo, Rochelle,Sheth, Khushboo,Babigian, Alan,Scola, Christopher Korean Society of Plastic and Reconstructive Surge 2018 Archives of Plastic Surgery Vol.45 No.5
While the success or failure of carpal tunnel release ultimately depends on the interplay of a wide array of factors, a broad understanding of the normal anatomy of the carpal tunnel accompanied by awareness of the possible variations of the individual structures that make up its contents is crucial to optimizing surgical outcomes. While anatomic variants such as extension of the flexor digitorum muscle bellies have been described as a cause of primary carpal tunnel syndrome (CTS), there have been no reports depicting its association with recurrent CTS following initially successful carpal tunnel release, a finding with potentially significant prognostic implications that can aid in operative planning. In such cases where muscle extension is identified preoperatively, careful debulking of the muscle belly may be beneficial in improving long-term surgical outcomes.
Hybrid PSO-Complex Algorithm Based Parameter Identification for a Composite Load Model
Del Castillo, Manuelito Y. Jr.,Song, Hwachang,Lee, Byongjun The Korean Institute of Electrical Engineers 2013 Journal of Electrical Engineering & Technology Vol.8 No.3
This paper proposes a hybrid searching algorithm based on parameter identification for power system load models. Hybrid searching was performed by the combination of particle swarm optimization (PSO) and a complex method, which enhances the convergence of solutions closer to minima and takes advantage of global searching with PSO. In this paper, the load model of interest is composed of a ZIP model and a third-order model for induction motors for stability analysis, and parameter sets are obtained that best-fit the output measurement data using the hybrid search. The origin of the hybrid method is to further apply the complex method as a local search for finding better solutions using the selected particles from the performed PSO procedure.
Labor mobility and intergenerational transmission of self-employment in Mexico
Didimo Castillo Fernandez,Fortino Vela Peon 부산외국어대학교 중남미지역원 2013 이베로아메리카 Vol.15 No.1
The immediate social and domestic influences on occupational or self-employment choices in Mexico are explored in this article. Specifically, this article proposes that structural aspects of the economy have impeded the creation of formal jobs. In addition to a lack of formal employment, certain socio-cultural factors have led to the promotion of self-employment choices. These choices tend to be to be multi-generational due to the fact that working parents tend to transmit certain informal human capital to their offspring in two ways; first, through the inheritance of skills related to specific occupational choices, and secondly, through their general administrative knowledge such as the ability to work independently in an occupation. Due to the lack of data sources (studies) which are sufficiently wide and -term to allow us to follow self-employed workers for several generations, methodologically, we must analyze a smaller sample size: parents G1 and children G2 from the same family. The data is taken from the National Study of Occupation and Employment (ENOE) 2010.
E. Castillo,R. D?az 장전수학회 2007 Advanced Studies in Contemporary Mathematics Vol.15 No.1
We construct membrane homology groups H(M ) associated with each compact connected oriented smooth manifold, and show that H(M ) is a matrix graded algebra.