• Title, Summary, Keyword: IT-Resources

Search Result 15,553, Processing Time 0.067 seconds

Water, Energy, and Food Nexus Simulation Considering Inter-Basin Trade

  • Wicaksono, Albert;Jeong, Gimoon;Kang, Doosun
    • Proceedings of the Korea Water Resources Association Conference
    • /
    • /
    • pp.190-190
    • /
    • 2016
  • The Water, Energy, and Food (WEF) nexus is an emerging concept for sustainable resources planning and management. The three valuable resources are inevitably interconnected, that is, it takes water to produce energy; it takes energy to extract, treat, and distribute water; and both water and energy are required to produce food. Although it is challenging to fully understand the complicated interdependency, a few studies have been devoted to interpret the concept and develop the assessment tools. The tools were mainly developed for nation-wide simulations without considering inter-basin or inter-state resources trade. This study tries to present an idea to develop and implement the WEF nexus simulation model in regional scale by advancing the existing nation-wide model with additional capability to simulate the inter-basin trade. This simulation could help local planners and engineers to determine optimal policies and infrastructure solutions to reach and ensure local demand satisfaction. The simulation model is implemented in hypothetical areas with different conditions of WEF demands and supplies. Although the inter-basin trade scenarios are simulated manually, it shows that the inter-basin resources trade could enhance the resources security for a longer time period. In future, an optimization model might be developed to provide the automatic calculation to reach optimum amount of WEF for the trade, which can be a helpful tool in decision making process.

  • PDF

A Study on the Demands and Present Conditions of Medical Resources in Uijongbu City (의정부시 의료자원의 현황 및 수요에 관한 연구)

  • Son, Jae-Won;Han, Gi-Jeung;Mock, Dae-Sang;Lee, Teuk-Koo
    • Journal of The Korea Institute of Healthcare Architecture
    • /
    • v.6 no.10
    • /
    • pp.23-30
    • /
    • 2000
  • The purpose of this study is to provide the basic data that helps the supplying medical resources through understanding the present conditions of medical resources and the territory of diagnosis in Uijongbu city. To achieve this goal, the statistical data related to the medical resources of Uijongbu city were analyzed; the number of population, medical facility, beds for inpatients, medical personnels and so on. Through the analysis of statistical data, it was revealed that the present conditions of medical resources are so insufficient in Uijongbu city. The results of the study were as follows; Firstly, it should be added to the beds for inpatients. Secondly, it should be characterized by specialization of hospitals. Thirdly, it should be added to the herb medicine hospital.

  • PDF

Design and Implement of E-textbook Authoring System Supporting Open Resource based on Original Contents Tracing Model (원본 추적 모델 기반의 오픈 리소스를 지원하는 강의 교재 저작 시스템의 설계 및 개발)

  • Choi, Ja-Ryoung;Lim, Soon-Bum
    • Journal of Korea Multimedia Society
    • /
    • v.19 no.3
    • /
    • pp.650-658
    • /
    • 2016
  • This study proposes web-based authoring system for the lecturers who published textbooks by inserting external open resource. When lecturer publishes textbooks, the system makes it easier to utilize external resources by providing an open resource pool that the lecturer can search not only his own resources but external resources. In addition, we designed an open resource pool based on Original Contents Tracing Model to check whether the scrapped resource is changed or not in the future. Open Resource Pool allows inserting text, images and videos by searching multimedia, and stores metadata for the follow-up management. We made the system to determine the change of the resource using the metadata stored in the tracking system. Through this research, we confirmed that it is possible to publish textbooks by utilizing a variety of open resources on the web and revise the book by tracing the scrapped resources.

A Study on the Revitalize Fishing Villages through the Analysis of Amenity Resources (어메니티자원 분석을 통한 어촌마을의 활성화 방안에 관한 연구)

  • Ahn, Gye-Bog
    • Journal of Korean Society of Rural Planning
    • /
    • v.16 no.4
    • /
    • pp.147-156
    • /
    • 2010
  • Among the towns of GyeongJu and SamCheok on which I have surveyed about their amenity resources in 2010, I chose 5 towns that are close to the Eastsea to analyze the data and to devise how to revitalize fishing villages. And the results are as follows. 1. Although Yangbuk-myeon is geographically located to have all the aspects of fishing village, farming village, and mountain village, the resources utilized are mainly that of mountain village. There is need to utilize actively historical amenity resources like Munmudaewangreung of Yangbuk-myeon. 2. The use of amenity resources of Yangnam-myeon is centered on farm and mountain village. But if they utilize amenity resources of fishing villages of Eupcheon-port's neighborhood, it would be a big help for the revitalization of Yangnam-myeon which is depressed. 3. The fishing mackerels on boat of Gampo-eup Jeonchonri is a successful example of utilization of fishing village's amenity resources. However, there is need to utilize amenity resources of farming and mountain villages that are near to Gampo-eup, so it can attract visitors to stay longer. Particularly, the fishing villages of the East coast must develop 4 seasons program connecting the amenity resources of neighboring farm and mountain. 4. Geundeok-myeon is a town where they made the amenity resources of fishing village into tourist attractions. But considering the wide gap between Geundeok-myeon and neighboring fishing, farming and mountain villages that cannot get the advantage of development, there has to be some inducement in policy so every town can be developed evenly. 5. After analyzing how the towns utilize the amenity resources to make them tourist attraction, it is shown that Geundeok-myeon of SamCheok is the best town which is using fishing village's amenity resources well, and Yangnam-myeon and Yangbuk-myeon of GyeongJu are scarcely using them. About types of tourist attraction, the programs with scenic view of fishing village, with water-sport, and with Eco-experience are needed to improved.

An Investigation on the Metadata of Electronic Resources in University Libraries (대학도서관 전자자원 메타데이터 실태 분석)

  • Lee, Ji-Won
    • Journal of the Korean Society for information Management
    • /
    • v.28 no.1
    • /
    • pp.221-235
    • /
    • 2011
  • This study attempts to investigate the current practice of electronic resources in the academic libraries and to explore the changes of paradigm in the organization of information. It reviewed how academic libraries have acquired and organized electronic resources. It also investigated the library home pages of 30 academic libraries in order to identify the category of electronic resources, metadata, and linkage methods with various material types such as printed resources and theses. To perform extended functions of library catalogs, it is essential for academic libraries to manage the metadata of various resources together and provide enhanced access and linkage of related resources.

The Evaluation of Watershed Management Model using Behavioral Characteristics of Flow-duration Curve (유황곡선의 거동특성을 이용한 유역관리모형의 평가)

  • Kim, Joo Cheol;Lee, Sang Jin;Shin, Hyun Ho;Hwang, Man Ha
    • Journal of Korean Society on Water Environment
    • /
    • v.25 no.4
    • /
    • pp.573-579
    • /
    • 2009
  • The performance of Rainfall-Runoff Forecasting System (RRFS), the watershed management model for the Geum river basin, is evaluated based on the agreement between the simulated and observed hydrographs and the behavioral characteristics of the flow-duration curves. As a result, the simulated hydrographs are well agreed with the observed ones except high flow discharges. It is inferred that most of the errors in the simulated hydrographs are due to the misestimation of agricultural water use in $2^{nd}$ quarter and the discrepancy of the peak discharges in $3^{rd}$ quarter. It is however judged that RRFS would give the reliable runoff hydrographs from the point of view of continuous model application. And simulated flow-duration curves and flow-duration coefficients are also similar to the observed ones except flood flow region. From the above result it is confirmed that the construction of Yongdam dam improves the state of flow-duration curve at the Gongjoo station.

An Efficient VM-Level Scaling Scheme in an IaaS Cloud Computing System: A Queueing Theory Approach

  • Lee, Doo Ho
    • International Journal of Contents
    • /
    • v.13 no.2
    • /
    • pp.29-34
    • /
    • 2017
  • Cloud computing is becoming an effective and efficient way of computing resources and computing service integration. Through centralized management of resources and services, cloud computing delivers hosted services over the internet, such that access to shared hardware, software, applications, information, and all resources is elastically provided to the consumer on-demand. The main enabling technology for cloud computing is virtualization. Virtualization software creates a temporarily simulated or extended version of computing and network resources. The objectives of virtualization are as follows: first, to fully utilize the shared resources by applying partitioning and time-sharing; second, to centralize resource management; third, to enhance cloud data center agility and provide the required scalability and elasticity for on-demand capabilities; fourth, to improve testing and running software diagnostics on different operating platforms; and fifth, to improve the portability of applications and workload migration capabilities. One of the key features of cloud computing is elasticity. It enables users to create and remove virtual computing resources dynamically according to the changing demand, but it is not easy to make a decision regarding the right amount of resources. Indeed, proper provisioning of the resources to applications is an important issue in IaaS cloud computing. Most web applications encounter large and fluctuating task requests. In predictable situations, the resources can be provisioned in advance through capacity planning techniques. But in case of unplanned and spike requests, it would be desirable to automatically scale the resources, called auto-scaling, which adjusts the resources allocated to applications based on its need at any given time. This would free the user from the burden of deciding how many resources are necessary each time. In this work, we propose an analytical and efficient VM-level scaling scheme by modeling each VM in a data center as an M/M/1 processor sharing queue. Our proposed VM-level scaling scheme is validated via a numerical experiment.

An Empirical Study on Effects of IT Resources of the Firms Adopting Smart-Work on Job Performance: Focused on Mediating Effect of Collective Intelligence (스마트워크 도입 기업의 IT자원이 직무성과에 미치는 영향에 관한 실증연구: 집단지성의 매개효과를 중심으로)

  • Cho, Moo-Ho;Yang, Dongwoo
    • Journal of Digital Convergence
    • /
    • v.15 no.8
    • /
    • pp.145-160
    • /
    • 2017
  • This paper aims to investigate the effects of Smart-Work IT resources on job performance. The survey was conducted amongst the business workers who are currently engaged in domestic major companies as well as small businesses, and analyzed based on the frequency, factor and reliability. Using PROCESS Macro, we conducted an analysis of the relationship between the IT resources and job performance, treating collective intelligence as a mediating parameter. The results of the study are as follows. First, the IT resources of the companies were found to have a meaningful effect on job performance. Second, the IT resources were found to have no effect on employee productivity except through their effect on the collective intelligence. Finally, while openness and cooperation were found to be the aspects of collective intelligence which mediated between IT resources and workflow improvement, participation, openness and cooperation were found to be the aspects of collective intelligence which mediated between IT resources and workflow coordination, In the future, it is necessary to compare quantitatively the financial performance of Smart-Work adopters and others in the same industry or to compare the financial performance before and after introducing Smart-Work dynamically within the same company.

A Study on the effect management of human resource in Hotel (호텔기업의 인적자원 관리에 관한 연구)

  • 류진순
    • Culinary science and hospitality research
    • /
    • v.6 no.2
    • /
    • pp.199-225
    • /
    • 2000
  • It is desirable that the management of human resources, as a strategy for the competition, should be the necessity for the hotel industries to survive in the rapid change and continuous development In other words, the management of enterprise provides the foundation to form human relationship, just as the hospitality industry operates with human relationship. Here by, all the problems out hotels have faced are that our hotels should look for a new human resources. The control of human resources in hotels means that if does not only satisfy hotels, employees, and guests but improves the personal ability. also it is important for the method of hotel operation as a management. Therefor, hotel managers have to get a good human resources, at the same time, improve the potential ability from them in order to get development for industries and a person. This study in the effective project for the human resources in hotels is relation to the organization of hotel sand he factor of human resources. This research if focused on the property of classification each factor in the control of human resources. according to the classification, the relationship and an effect are commonly made in groups of properties and are named respectively.

  • PDF

LONG-TERM RESERVOIR SEDIMENT MANAGEMENT CONSIDERING OTHER OPERATIONAL OBJECTIVES

  • Ko, Seok-Ku;Kim, Woo-Gu;Lee, Gwang-Man
    • Water for future
    • /
    • v.35 no.5
    • /
    • pp.43-50
    • /
    • 2002
  • The Yellow River Basin located in the Northern part of China is well-known not only as the seriously limited water sources but the greatest sediment-carrying stream in the world. The observed annual average sediment concentration in this area is $37.6kg/\textrm{mm}^3$, and 3.1% of the water volume is occupied by sediments. Due to the reason, water development has been extremely limited and it has been appeared as one of the most difficult problems in reservoir development and management. The major obstacle to surface water uses is reservoir sedimentation so that it has been strongly requested to seek the method managing sediment by optimal fashion. To solve this problem, KOWACO (Korea Water Resources Corporation) has developed various methods on the optimal reservoir management schemes including sediment management for the Upper Fenhe Basin Reservoir System at the cooperation project with Chinese. Information Variable Dynamic Programming. which is one of them, was developed for the reservoir sediment management and a set of non-dominated solutions are generated to choose the best alternative in water supply and reservoir sediment objective problem.

  • PDF