• Title/Summary/Keyword: Utility Work

Search Result 284, Processing Time 0.033 seconds

On the Situation of House Cleaning and the Housemakers Opinion for Utility of the Vacuum Cleaner in Korea (한국에 있어서의 가정청소의 실태와 전기청소기에 관한 평가 - 한국과 일본의 비교 -)

  • 신경주
    • Journal of the Korean Home Economics Association
    • /
    • v.20 no.3
    • /
    • pp.55-63
    • /
    • 1982
  • We are studying on the home economics, particularly tools and machines used in household affairs. The object of this paper is to rationalize house cleaning method and to improve the used cleaning tools. We have made a social survey in Korea about the real situation of house cleaning as the first phase of this research. The contents are as follows: 1) The consciousness of housemakers for house cleaning. 2) The methods of house cleaning. 3) The used type of vacuum cleaner. 4) Merits and demerits of vacuum cleaner. 5) Troubles of vacuum cleaner etc. The results has been made in comparison with the same social survey in japan and a small scale different survey in The United States of America by auther in 1979. The results are as follow (in Korea). 1. The almost of housemakers are affirmative in charge of household affairs(95%). 2. In household affairs, only 9% of housemakers dislike cleaning work, but 40% of housemakers do not a cleaning work as a daily periodically. 3. In general household, they do a cleaning work with broom, duster and dust cloth, and then the cleaning work is faily backward in mechanization(The possession of vacuum is 19%). 4. The main dissatisfaction of vacuum cleaner is a noise, and also the difficulty of the cleaning in a corner of the room is shown in high percentage too.

  • PDF

An evaluation of local waters productivity by operating types (운영형태별 수도사업 생산성 평가)

  • Kim, Shang-Moon;Lee, Ik-Gyu
    • Journal of Korean Society of Water and Wastewater
    • /
    • v.25 no.3
    • /
    • pp.325-334
    • /
    • 2011
  • Market Environment around water work industry is rapidly changing. ISO, International Organization for Standardization, announced the international water work service standard for comparison and evaluation between nations and businesses. And developed countries in water work are introducing market principle for growth of nation's water industry and reinforcement of its competitiveness. Also, some local governments entrusted their water utilities for improvement of competitiveness of water work. However, as some failure cases from overseas came out with emphasis, there are many refuting perspective about entrusted operation achievements of domestic water market. Hence, this paper evaluated competitiveness of domestic local water utilities from the perspective of productivity. After evaluating productivity using Malmquist productivity index, the authors compared and analyzed whether there is a difference of productivity between two different operating types by using Mann-Whitney test. As a result of analysis, it has shown that local water utilities achieved higher productivity at entrusted operation type rather than direct operation type. The local water utilities which chose entrusted operation had increased the productivity 13.9% on total factor productivity(TFP) during experimenting period, while the local water utilities which chose direct operation had increased 0.2%. The background of achieving this high productivity in entrusted operation was analyzed as a result of the higher technological effectiveness of a special water company. The result of this study can be referred when local government needs to decide on what operating types they will use.

Standardization of Measurements for Korean Kitchen Work Centers and Cabinets for Future Design Criteria(IV) -Classification of Life Style Related to Kitchen Space in Contemporary Korea: as a Basis for Desirable Kitchen Type- (한국부엌의 작업대와 수납나의 표준치수설정을 위한 연구 IV -부엌과 관련된 현대 한국인의 생활양식 유형 분류-)

  • Chi, Soon;Yoon, Bok-Cha;Lee, Yeun-Sook;Yoo, Seong-Hee;Oh, Chan-Ohk;Choi, Hee-Jae;Park, Hye-Kyung;Seong, Hai-Sook
    • Journal of the Korean Home Economics Association
    • /
    • v.25 no.3
    • /
    • pp.63-82
    • /
    • 1987
  • This is the forth consecutive study on the 'Standardization of Measurement for Korean Kitchen Work Centers and Cabinets for Future Design Criteria'. The purpose of the present research was (1) to classify homemakers' representative like styles related to the kitchen, (2) to examine homemakers' present concerns on the kitchen space, and (3) to investigate homemakers' desire and preference on the kitchen space. Twenty two hundred homemakers of upper and middle class residing in Seoul, Busan, Daegu, Incheon, Gwangju and Daejeon were selected for the survey and 1,843 among them were used for data analysis. Data were selected for the survey and 1,843 among them were used for data analysis. Data were analyzed using the SAS program package. The statistics used were frequency, percentage, mean, factor analysis, F-test, Duncan's multiple range test, X2-test, cluster analysis. Findings from the research as follows: (1) Four factors were found as indicaters of the life style; values on the household work, desire on social function of the kitchen, degree on cooperation of family members on the household work, and convenient management. It was noticeable that homemakers had positive responses in terms of desire on social function of the kitchen and degree on cooperation of family members on the household work. Homemakers' life styles related to the kitchen space were classified into 6 categories. (2) Relatively a few respondents answered that the kitchens were very well furnished. If, however, the economic conditions become better, substantial number of them wanted to invest for better kitchen following the one for living room. (3) It was found that most respondents preferred the arrangement of space, where dining and kitchen in one space, and a hard wall or soft treatment was between living and dining/kitchen area. (4) Many respondents desired pantry, utility and laundry area be near the kitchen or in the same space with it, thereby forming a utility core in a housing space.

  • PDF

Study on the FRBR Algorithm and Application of KORMARC Database (FRBR 알고리즘 분석 및 KORMARC 데이터베이스 적용 방안)

  • Cho, Jane
    • Journal of the Korean Society for Library and Information Science
    • /
    • v.38 no.3
    • /
    • pp.5-21
    • /
    • 2004
  • FRBR, as is new conceptual model of bibliography based on entity-relation model, direct to revision of AACR. OCLC and other bibliographic utility develop algorithm that cluster relative bibliographic records automatically, which were derived from one original work, and web-based prototype for FRBR browsing. But the state of domestic research level stay at conceptual reconsideration of FRBR model.7his study focused on analyzing FRBR algorithm and application of KORMARC database.

Globally Optimal Solutions for Cross-Layer Design in Fast-Fading Lossy Delay-Constrained MANETs

  • Pham, Quoc-Viet;Kim, Hoon;Hwang, Won-Joo
    • Journal of Korea Multimedia Society
    • /
    • v.18 no.2
    • /
    • pp.168-177
    • /
    • 2015
  • To increase the overall utility and decrease the link delay and power consumption, a joint optimal cross-layer design of congestion control at the transport layer, link delay at the data link layer and power allocation at the physical layer for mobile ad hoc networks is considered in this paper. As opposed to previous work, the rate outage probability in this work is based on exactly closed-form; therefore, the proposed method can guarantee the globally optimal solutions to the underlying problem. The non-convex formulated problem is transformed into a convex one, which is solved by exploiting the duality technique. Finally, simulation results verify that our proposal achieves considerable benefits over the existing method.

A Study on Metaverse Usability in the Fashion Industry

  • Park, HyeSook
    • International Journal of Advanced Culture Technology
    • /
    • v.10 no.4
    • /
    • pp.396-402
    • /
    • 2022
  • Since the 21st century, the internet has been an essential existence due to the 4th industrial revolution and the development of IT technology, but the focus of the existing development direction has changed a lot over the past three years. COVID-19, also known as a pandemic, first occurred in 2020 escalating rapidly and cutting off society existing as an off-line form in every country. As non-face-to-face life continues, everyday technologies using online such as hybrid work have promptly developed, and an online virtual world called Metaverse excelled and became a phenomenal topic. In this study, theoretical considerations and the current status of the metaverse, which are being highlighted as global trend keywords, are examined, and the utility of the metaverse in the fashion industry was studied. Based on this study, it is expected that the work is recognized and brings helpful intuitions as a way to revitalize the shrinking fashion industry by using the metaverse, which is still in its infancy.

A Computer Simulation Study on the Separation Process for Electronic Grade, Highly Pure Carbon Dioxide through a Cryogenic Distillation (심냉 증류를 통한 전자급 고순도 이산화탄소의 분리 공정에 대한 전산 모사 연구)

  • ILSU PARK;HUNGMAN MOON;JUNGHO CHO
    • Transactions of the Korean hydrogen and new energy society
    • /
    • v.34 no.1
    • /
    • pp.83-89
    • /
    • 2023
  • In this study, a computer simulation work has been performed for the separation of electronic grade highly pure carbon dioxide more than 7 N purity through a cryogenic distillation process. For the cold utility as a cooling medium for a condenser of the cryogenic distillation column, propylene was utilized as a refrigerant in the vapor-recompression refrigeration cycle. Through this work, it was concluded that the cryogenic distillation column with two stage compression and refrigeration cycle were essential to obtain a highly-pure liquefied CO2.

Development of Self Administered Questionnaire and Validity Evaluation for American National Standards Z-365 Checklist (미국표준연구원 체크리스트 Z-365의 자가보고형 설문개발 및 타당도 평가)

  • Park, Kyung Sik;Kang, Dongmug;Lee, Yong Hwan;Woo, Ji Hoon;Shin, Yong Chul
    • Journal of Korean Society of Occupational and Environmental Hygiene
    • /
    • v.16 no.2
    • /
    • pp.172-182
    • /
    • 2006
  • Self administered checklist is needed to be developed to evaluate ergonomic risk factors. This study was conducted to develop self administered form of American National Standards Institute (ANSI) Z-365 checklist which represents comprehensive ergonomic risk factors, and to evaluate validity of this checklist. This study had been conducted from May 2004 to July 2005, of which subjects were 147 workers from 4 workplaces. Response rates for every items of self administered form of ANSI Z-365 were evaluated. To estimate the validity of checklist, relationship between the checklist grade that ANSI recommended and work-related musculoskeletal disorders (WMSDs) symptom were calculated with and without adjustment of related variables. To evaluate the utility of checklist, sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) were calculated. Because response rates of almost items were over 90 %, item development was successful. Because the checklist was related with WMSDs symptom after adjusting related variables, the checklist might represents ergonomic risk well. Because of low sensitivity and NPV, high specificity and PPV, the checklist is not suitable for screening tool. The checklist has better relationship with more severe symptom. Because of high specificity of the checklist, using it with high sensitive tool would enhance it's utility. Further study to develop high sensitive and comprehensive self administered ergonomic checklist is needed.

On the underground imaging using borehole camera

  • Jeong Yun-Young;Nakagawa Hideaki;Shimada Hideki;Matsui Kikuo;Kim JaeDong
    • 한국지구물리탐사학회:학술대회논문집
    • /
    • 2003.11a
    • /
    • pp.52-59
    • /
    • 2003
  • It is only possible through the image analysis of borehole wall and the core recovered from borehole constructed in rock mass that the real information about geologic characteristics in rock mass is directly obtained in primary research. Monitoring apparatus with multi-functional utility has implemented and applied in-situ condition for finding the geologic condition of target area. But, this apparatus is very expensive to be applied at the risk of loss during monitoring and cause hard work for moving them to the determined position. This paper shows the underground imaging from the borehole information obtained by a borehole camera with the simple utility and low cost enough to investigate the characteristics of borehole wall. Monitoring for this has been done in open-pit mine located at the northeastern part of Fukuoka Prefecture in Japan, and finally the three dimensional imaging of geological discontinuity was discussed relative to the field condition.

  • PDF

The Implication of Changes on Unit Plans of Condominium Apartments in Rural Area depended on Women's Spaces (수도권 신도시 근교 농촌 아파트 주거의 내부 공간구조 변화 - 주부인 여성이 주로 사용하는 공간을 중심으로 -)

  • Choi, Byung-sook
    • Journal of the Korean Institute of Rural Architecture
    • /
    • v.12 no.2
    • /
    • pp.13-22
    • /
    • 2010
  • This study is to analyze women's power in family to be related to Anbang, kitchen, dining room, and utility room planning in a unit plan of condominium apartment housing in rural area Data were collected 194 unit plans from 9 eastern regions of Kungi-Do. The results are as followed: 1) Anbang reflects the women's power on changing its space character into mater bedroom, the highest hierarchy in private zone, and planning a dress room in it. 2) Dining room and kitchen is openly centered on the unit plan, but kitchen is still only women's working space for family and agriculture depended on literature review. Dining space is not activated family interaction, so it is not different from urban apartment housing. However, its location and character are changed, and its hierarchy is relatively higher with women. Dining room and kitchen tend to plan visually separated after 2001, so its trend seems to establish women's territory at home. 3) Whole family can't be easy to access utility and back balcony close to kitchen, and these spaces are functionally separated for women's house work. This design trend seems to establish for women's area. 4) Finally, women's power seems to be effective in house working area including kitchen space depended on results. Also, these results from rural condominium apartment are similar to urban ones in previous study.