3D Finite Element Modelling of Sheet Pile Wall Excavation: A Case study in Bangkok

Sheet pile wall has been used extensively as a soil retaining structure during the excavation process in soft ground. Meanwhile, finite element method (FEM) has been widely used as a numerical tool to predict wall movements due to soil excavation. In FEM, many factors including soil parameters, structures’ parameters and construction stages simulation influence the analysis results. This paper presents a modelling of sheet pile wall at deep excavation using 3D FEM. The study focuses on the structures’ stiffness modelling and the stages of construction simulation. The hardening soil model and its parameters adopted from previous study was employed in the analysis. To validate the model, an excavation site located in the center of Bangkok was selected to model. PLAXIS 3D – a commercial software for solving finite element problem was employed in this study. In overall, the results of wall movements from 3D FEM agree well with the instrumented data confirming that the modelling could reflect the real behavior of sheet pile walls at deep excavation in soft soils in Bangko

The making of evidence-informed health policy in Cambodia: knowledge, institutions, and processes

Introduction: In global health discussions, there have been widespread calls for health policy and programme implementation to be informed by the best available evidence. However, recommendations in the literature on knowledge translation are often decontextualized, with little attention to the local systems of institutions, structures, and practices which can direct the production of evidence and shape whether or how it informs health decisions. This article explores these issues in the country setting of Cambodia, where the Ministry of Health has explicitly championed the language of evidence-based approaches to policy and planning. Methods: Research for this paper combined multiple sources and material, including indepth interviews with key informants in Phnom Penh and the analysis of documentary material and publications. Data collection and analysis focused on two key domains in evidence advisory systems: domestic capacities to generate health-policy relevant evidence and institutional mechanisms to monitor, evaluate, and incorporate evidence in the policy process. Results: We identified a number of structural arrangements that may increasingly work to facilitate the supply of health-related data and information, and their use to inform policy and planning. However, other trends and features appear to be more problematic, including gaps between research and public health priorities in the country, the fragmented nature of research activities and information systems, the lack of a national policy to support and guide the production and use of evidence for health policy, and challenges to the use of evidence for inter-sectoral policy making. Conclusions: In Cambodia, as in other low- and middle-income countries, continued investments to increase the supply and quality of health data and information are needed, but greater attention should be paid to the enabling institutional environment to ensure relevance of health research products and effective knowledge management

The Coordination Of Dual Setting Directional Overcurrent Relay In PT. Pupuk Sriwidjaja Ring System Using Adaptive Modified Firefly Algorithm

Directional Overcurrent Relays (DOCRs) play an essential role in the power system protection to guarantee the reliability, speed of relay operation and avoiding mal-trip in the primary and backup relays when unintentional fault conditions occur in the system. Moreover, the dual setting protection scheme is more efficient protection schemes for offering fast response protection and providing flexibility in the coordination of relay. The Adaptive Modified Firefly Algorithm (AMFA) is used to determine the optimal coordination of dual setting DOCRs in the ring distribution system. The AMFA is completed by choosing the minimum value of the pickup current (Ip) and time dial setting (TDS). On the other hand, dual setting DOCRs protection scheme also proposed for operating in both forward and reverse directions that consisted of individual time current characteristics (TCC) curve for each direction. The AMFA method is applied to the ring distribution system network of PT. Pupuk Sriwidjaja by considering the fault on each bus. Then, the result is illustrated that the AMFA within dual setting protection scheme is significantly reaching the optimized coordination and the relay coordination is certain for all simulation scenarios with the minimum value of the total operating time (TOP). The CTI of each pairs relay is no less than 0.2s. Also, the comparison of converges iteration shown that the AMFA method is faster than the original FA method. The AMFA has been successfully implemented in MATLAB 2018b software and the relay coordination can be verified by using ETAP 12.6.0. ================================================================================================================================ Directional Overcurrent Relays (DOCRs) memainkan peran penting dalam perlindungan sistem tenaga untuk menjamin keandalan, kecepatan operasi rele dan menghindari mal-trip pada rele primer dan cadangan saat kondisi gangguan yang tidak disengaja terjadi dalam system. Selain itu, skema perlindungan pengaturan ganda adalah skema perlindungan yang lebih efisien untuk menawarkan perlindungan respons cepat dan memberikan fleksibilitas dalam koordinasi rele. Algoritma Adaptive Modified Firefly (AMFA) digunakan untuk menentukan koordinasi optimal DOCRs dalam sistem distribusi cincin. AMFA diselesaikan dengan memilih nilai minimum Pickup Current (Ip) dan Time Dial Setting (TDS). Di sisi lain, skema perlindungan DOCR juga diusulkan untuk beroperasi di arah maju dan mundur yang terdiri dari kurva individu Time Current Characteristics (TCC) untuk setiap arah. Metode AMFA diterapkan pada jaringan sistem distribusi cincin PT. Pupuk Sriwidjaja dengan mempertimbangkan kesalahan pada setiap bus. Kemudian, hasilnya diilustrasikan bahwa AMFA dalam skema perlindungan pengaturan ganda secara signifikan mencapai koordinasi optimal dan koordinasi rele pasti untuk semua skenario simulasi dengan nilai minimum Total Operating Time (TOP). CTI dari masing-masing pasangan relay tidak kurang dari 0,2s. Juga, perbandingan iterasi konvergen menunjukkan bahwa metode AMFA lebih cepat daripada metode FA asli. AMFA telah berhasil diimplementasikan dalam perangkat lunak MATLAB 2018b dan koordinasi rele dapat diverifikasi dengan menggunakan ETAP 12.6.0

Fish Sanctuaries In The Tonle Sap Great Lake (Cambodia)

Eight fish sanctuaries namely Pi Stoun, Chroy Sdey, Kampong Preak, Reang Til, Dey Roneat, Park Konteal, Kampong Pluk and Ba Lot are situated in different parts of the Tonle Sap Great Lake. They were established in 1987 with average area of 2,616 ha, to be act as fish refuge during dry season. These sanctuaries are totally protected from fishing activities in the whole year round, as compared to the open access areas where fishing activities are allowed either in the whole year round or in the open fishing season

a study on pros and cons

Thesis(Master) --KDI School:Master of Public Policy,2011masterpublishedby Eang Chheng Te

Biological reviews of important Cambodian fish species, based on fishbase 2004 volume 2

This document is a review of all the information published worldwide about ten fish species that contribute significantly to Cambodian fishery resources.Freshwater fish, Cambodia, Pangasius larnaudii, Clarias batrachus, Cirrhinus microlepis, Leptobarbus hoevenii, Thynnichthys thynnoides, Trichogaster microlepis, Trichogaster pectoralis, Anabas testudineus, Boesemania microlepis, Oxyeleotris marmorata

Biological reviews of important Cambodian fish species, based on fishbase 2004 Volume 1

This document is a review of all the information published worldwide about ten fish species that contribute significantly to Cambodian fishery resources.Freshwater fish, Cambodia, Channa striata, Channa micropeltes, Barbonymus altus, Barbonymus gonionotus, Cyclocheilichthys apogon, Cyclocheilichthys enoplos, Henicorhynchus lineatus, Henicorhynchus siamensis, Pangasius hypophthalmus, Pangasius djambal

Infectious Complications With Nondaily Versus Daily Infusion of Intravenous Fat Emulsions in Non–Critically Ill Adults

Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/141413/1/ncp0737.pd

Addressing the gaps in health system services delivery in Cambodia

Cambodia’s Health Strategic Plan 2008-15 (HSSP2) outlines health service delivery. This paper focuses on current research and suggests future directions for research that can help improve the organisation and quality of health service delivery in Cambodia. Research gaps include issues of affordability and out-of-pocket payments; the variation in practices and standard of care among healthcare professionals; and health promotion and education appropriate to the local context. In general, there is growing demand for health services in Cambodia, yet scant empirical research on how health service delivery can be scaled up to meet that demand