• Journal of the Korean housing association
• /
• v.8 no.1
• /
• pp.87-96
• /
• 1997

The user's needs for the American kitchen space were studied. Especially the remodelings and the desirable changes of the rural kitchen space were examined. Pilot study was carried out by the field survey. Questionnaire with 16 open-end items had been collested bt mail in Missouris, U.S. Based on the qualitative analysis of data for 104 houses. main characteristics of users' needs for the kitchen space can be summerized as follows : 1) The residents had changed or updated materials and facilities, and had enlarged storage space to equip more cabinets. Kitchen space had been adapted to new facilities and appliances. 2) The users still wanted to have larger kitchen space, more storage space and newer floor materials. Through this study it can be concluded that users needed kitchen space to be convenient and wide enough to work.

• Journal of the Korean Society of Marine Environment & Safety
• /
• v.6 no.1
• /
• pp.57-67
• /
• 2000

All crude oil carries a little of water, sand, and mineral sediment molecules tightly bounded with hydrocarbons. The result is the gradual precipitation of these heavier elements into thick, granular petroleum by products known as crude oil sludge. The oily sludges in ship tanks and in storage facilities have to be treated efficiently in order to keep the security and the capacity of storage facilities, to protect a serious environmental pollution, and to retrieve lost resource. The oily sludge treatment system should be designed to satisfy requirements mentioned in safe work condition. As a basic study, in this paper, an oily sludge treatment system by ultrasonic waves was proposed. Then, the features of ultrasonic energy and recovery of sludge with ultrasonic waves are investigated by experiments. As results, we found that ultrasonic waves are a new energy to flow oil sludge environment-friendly in safe work condition. In addition, it was shown that ultrasonic energy is more efficient than thermal energy in treating oil sludge, and that the volume of wastes for disposal is reduced remarkably.

• Journal of The Institute of Information and Telecommunication Facilities Engineering
• /
• v.3 no.1
• /
• pp.34-45
• /
• 2004

홈네트워크 및 유비쿼터스 환경 도래로 인하여 디지털 기기의 데이터량이 급증하고 있고 이에 따라 가정 내 저장공간이 요구된다. 본 논문은 다양한 디지털 기술의 융합을 통한 홈 네트워크 기반의 능동형 미디어 스토리지 개발에 관한 내용을 고찰한다. 연구/개발된 능동형 미디어 스토리지는 SDP와 연동하여 홈네트워킹에 필요한 정보를 저장하여 SDP가 요구하는 정보를 어플리케이션에 따라 다르게 처리한다. 또한 멀티미디어 데이터를 로컬 네트워크 상에 최적화하여 어플리케이션에 제공한다. 또한 가정 내 디지털 기기의 정보저장 허브 역할을 수행한다.

• Proceedings of the Korean Society of Soil and Groundwater Environment Conference
• /
• 1998.11a
• /
• pp.169-173
• /
• 1998

The practice of the construction and management of the underground petroleum storage facilities in Korea was investigated extensively, and the problems were identified. The advanced technologies in the U.S.A was comparatively studied. Considering the effectiveness of leak prevention and technology applicability, the following measures were suggested. To prevent corrosion of the tank, a clad tank, an interior-lining tank, or a double-wall tank was appropriate and appeared to be most cost effective. For piping, non-metalic material was suggested. To prevent spill, a catchment basin can be effective. For monitoring of leak, construction of more than one of one or combination of an automatic leak-detection device, a vapor-detection system, a ground water-monitoring system, and a double-wall detection system was recommended.

• Ocean policy research
• /
• v.33 no.2
• /
• pp.25-55
• /
• 2018

Cold storage and transportation facilities play major roles in the implementation of fishery cold chain systems. Most fishes are more easily perishable than other food products such as agricultural products and livestock products. Therefore, fishery cold chain systems were earlier introduced than other food clod chain systems. It is acknowledged that a reefer ship as a component of cold chain systems was used in the fishery transportation in the Joseon Dynasty. But researchers disagree on the introduction time of a fishery reefer ship. This study investigated the introduction time of a fishery reefer ship by some conditions including the number of private cold storage facilities, the magnitude of fishing vessels, and the plenty catch of fish species. According to reviewing the introduction conditions of fishery reefer ships, it was estimated that fishery reefer ships were introduced in 15th century. Therefore, the introduction time of a fishery reefer ship is more advanced about 300 or 400 years than as we know.

• Journal of Korean Society for Atmospheric Environment
• /
• v.19 no.4
• /
• pp.363-376
• /
• 2003

In this study, the fugitive emission characteristics of airborne volatile organic compounds from different source categories were evaluated with respect to the concentrations measured in the vicinity of the sources. A total of 22 different sources were investigated, including gasoline storage and filling stations, painting spray booth, laundry, printing officer, textile industries, and a number of environmental sanitary facilities such as landfill, wastewater treatment and incineration plants. The target VOCs included 83 individual compounds, which were determined by adsorption sampling and thermal desorption coupled with GC/MS analysis. Overall, the aliphatic compounds appeared to be the most abundant class of compounds in terms of their concentrations, followed by aromatic, and halogenated hydrocarbons. As a single compound, however, toluene was the most abundant one, explaining 11% of the total VOC concentrations as an average of all the dataset. Among source categories, petroleum associated sources such as gasoline storage/filling stations, and laundry factory were identified as the most significant sources of aliphatic hydrocarbons, while aromatic VOCs were dominantly emitted from the sources handling organic solvents, such as painting booth, printing offices, and textile dyeing processes. However. there was no apparent pattern in terms of the contributions of eath group to the total VOCs concentrations in environmental sanitary facilities. It was also found that the activated carbon adsorption tower installed for the VOC emission control in some facilities do not show any effective performances, which may result in the increased VOC levels in the ambient atmosphere.

• Journal of the Korean Institute of Educational Facilities
• /
• v.17 no.6
• /
• pp.23-30
• /
• 2010

Because the effort to solve space shortage in academic libraries has never been successful, the rapid development of digital technology is being considered as a panacea to revolutionize analog libraries and to open a new era for digital libraries. However, this technology is yet to be perfected. Even with the use of digital technology, we are currently still looking for more space to accommodate newly printed materials and at the same time store valuable resources that are seldomly used. In 1985, Harvard adopted the industrial high-density shelving system into their library. No other retrieving system has proven to be more successful as the Harvard model. Presently, more than 50 colleges have built over 70 high-density library storage facilities. Rice University Library Service Center (RLSC) can be examined as an example of the Harvard-model. This paper will focus on assessing the operating system and architectural requirements of the RLSC which may allow for a more efficient, economical, and fundamental resolution to the library space shortage problem.

• The Korean Journal of Food And Nutrition
• /
• v.19 no.4
• /
• pp.435-447
• /
• 2006

This study was carried out to investigate foodservice management of child care centers in Ansan and to suggest the basic data for foodservice management improvement. A questionnaire survey of 48 child care centers in Ansan was undertaken. Child care centers were categorized large (children eve. 100) and small(children less than 100) by size and public and private by type. Survey questionnaires consisted of general background, employee, food inspection and storage, kitchen, cooking facilities, food distribution and hygiene utensils. The results of this study are summarized as follows: because 46.9% to 56.3% of the centers took a dietitian in employment, foodservices in most of centers were not managed by professionals. The average of employee were 0.77 persons in smalll centers and 1.65 persons in large centers. The average space of kitchen were 3.86 pyung in smalll center, 6.06 pyung (1 pyung=$3.3058m^2$) in large centers. According to the data analyzed from Food inspection and storage, kitchen, cooking facilities, food distribution and hygiene utensils, the results indicate that the foodservice management of child care centers were in a relatively poor state. The director in child care centers should recognize the importance of the sanitation management and pay more attention to food service facilities. To improve foodservice performance at child care centers, it is required fur the Ministry of Gender Equality and Family to develop both the kitchen facility model based on the general sanitation standards and guidelines for child care centers.

• The Transactions of The Korean Institute of Electrical Engineers
• /
• v.65 no.6
• /
• pp.979-986
• /
• 2016

At present, electric power industry around the world are being gradually changed to a new paradigm, such as electrical energy storage system, the wireless power transmission. Demand for ESS, the core technology of the new paradigm, has been growing worldwide. However, it is essential to estimate the optimal capacity of ESS facilities for frequency regulation because the benefit would be saturated in accordance with the investment moment and the increase of total invested capacity of ESS facilities. Hence, in this paper, the annual optimal mathematical investment model is proposed to estimate the optimal capacity and to establish investment plan of ESS facility for frequency regulation. The optimal mathematical investment model is newly established for each season, because the construction period is short and the operation effect for the load by seasons is different unlike previous the mathematical investment model. Additionally, the marginal operating cost is found by new mathematical operation model considering no-load cost and start-up cost as step functions improving the previous mathematical operation model. ESS optimal capacity is established by use value in use iterative methods. In this case, ESS facilities cost is used in terms of the value of the beginning of the year.

• Journal of Animal Environmental Science
• /
• v.14 no.1
• /
• pp.1-8
• /
• 2008

This study was conducted to solve the problem of public grievance owing to odor of a pig farm. Odor emissions from pig production systems mainly originate from liquid manure storage and solid manure fermentation. The low-cost odor abatement system (OAS) for application at liquid manure storage tank and solid manure fermentation facilities was developed in this study. The OAS adapted odor removing principles of a biofilter and biotrickling filter. The OAS is very simplified in structure. The appearance of the OAS had a form of cylindrical or cubical shape. The system performance was monitored for about one year after stabilization. A 7 seconds empty bed contact time for the OAS was adapted to achieve the odor reduction levels. The commercial type of OAS was constructed with media comprised of wood chips. Moisture content always remained above 50% wet basis. Average ammonia removal efficiency for the developed design was 89% at the liquid manure storage tank. Also, the removal efficiency at a solid manure fermentation facility was 86% on ammonia.