• Title/Summary/Keyword: Maintenance Guidelines

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Effects of Cable Rupture on Dynamic Responses of a Concrete Cable-stayed Bridge (케이블 파단이 콘크리트사장교 동적거동에 미치는 영향)

  • Kim, Yu Hee;Go, Hyeong Gyu;Kim, Jae Cheon;Shin, Soobong
    • Journal of the Korea institute for structural maintenance and inspection
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    • v.16 no.3
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    • pp.84-91
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    • 2012
  • This paper aims to investigate the effects of cable rupture on the dynamic responses of concrete cable-stayed bridges in comparison with those of steel composite ones. It examines an adequate analysis method for simulating cable rupture using a time history function and evaluates the design guidelines for dynamic amplification factor (DAF). The computed DAFs from a concrete cable-stayed bridge are compared with those from a steel composite one based on the design guideline. As a conclusion, the current design guidelines for DAF may be reliable in overall but show some unstable cases despite satisfying the design guidelines, especially for concrete cable-stayed bridges.

A Study on the Interior Design Guidelines For the Elderly Housing Environment- A Content Analysis Study of Foreign Literature Using Murthas User Benefit- (노인주거 환경을 위한 실내디자인 지침에 관한 연구 -머사의 지원성 체제에 준거한 국외문헌 연구-)

  • 이연숙;한정림;박진배
    • Korean Institute of Interior Design Journal
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    • no.2
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    • pp.10-16
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    • 1994
  • The purpose of this study was to present systematic interior design guidelines for the elderly housing environment. As an environmental affordance system, Murth 's user benefit criteria was employed to analyze the items of the interior design guidlines in the 5 selected elderly housing literatures. 646 items were collected from the 5 representative literatures on elderly housing design. As a result of the content anaylysis, a set of comprehensive interior design guidenlines which was systematically synthesized based on the Murtha' s user benefit criteria was presented according to the specific spaces. The behaviroral facilitation and physiological maintenance dimension most frequently mentioned in foreign literature. Perceptual maintenance dimension needed to be developed in the future in elderly housing.

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An Analysis of Interior Design Guidelines for User-Centered Common Space (거주자 중심의 공유공간 계획을 위한 실내디자인 지침 분석연구)

  • Yoo, Seo-Yeon;Lee, Yeun-Sook
    • Proceedings of the Korean Institute of Interior Design Conference
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    • 2004.11a
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    • pp.165-166
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    • 2004
  • Apartment, which have become the major housing style in Korea, have contributed to the development of housing culture as well as achieved a growth in volume. However, the demands and characteristics of residents have not been reflected in the apartment, because it has been developed only for a growth in volume. In this society, housing unit was the first consideration rather than common space. Therefore, a required resident-centered common space is the domestic housing market's necessity. Under this circumstance, this study investigated previous studies on interior design guidelines for common space were analyzed using Murtha and Lee's user benefit criteria which emphasizes humanity. In-depth content analysis was employed in this study. The result showed that four categories of the model were related toward more user-centered residential environment-behavioral facilitation, physiological maintenance, perceptual maintenance, and social facilitation.

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UHPLC System Shutdown and Reactivation Advice (UHPLC 시스템 종료 및 재가동 시 가이드)

  • Mark Fever;Gemma Lo
    • FOCUS: LIFE SCIENCE
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    • no.1
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    • pp.8.1-8.3
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    • 2024
  • Ultra-high performance liquid chromatography (UHPLC) systems are integral to modern analytical laboratories, necessitating careful maintenance and operation protocols to ensure optimal performance. This document provides comprehensive guidelines for the proper shutdown and reactivation of UHPLC systems to prevent damage and maintain operational efficiency. • Shutdown: Remove the column and replace it with a union to avoid blockages. Flush the system with a compatible solvent mix, clean mobile phase reservoirs to prevent microbial growth, flush the pump with storage solvent, and clean the autosampler, including the needle and injection port. • Reactivation: Inspect the system for wear or damage, gradually reintroduce mobile phases starting with a weak solvent, reinstall the column securely, and perform system checks on baseline stability, pressure consistency, and detector performance. By adhering to these guidelines, laboratories can ensure the longevity and reliability of their UHPLC systems, maintaining high analytical performance and minimizing downtime. These procedures help prevent common issues such as blockages, contamination, and component wear, thereby supporting efficient and accurate analytical operations.

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A Study of Developing Guides for the Construction Site Quality Control of Porous Concrete (투수콘크리트 현장품질관리 지침서 개발에 관한 연구)

  • Ko, Eun-Jung;Goh, Eun-Joo;Seok, Ho-Joong;Lee, Seung-Hyeok
    • Journal of the Korea Institute of Building Construction
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    • v.9 no.3
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    • pp.65-71
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    • 2009
  • General criteria for the quality of porous concrete have not been established yet in Korea. And yet, pavement and construction have been performed. In this paper, guidelines on the construction site quality control of porous concrete were developed in order to establish criteria for resolving the issues and problems of porous concrete, to establish methods for improving poor performance, and to manage porous concrete more systematically. In addition, a guide for the construction site quality control of porous concrete, which was appropriate for reality, was developed by researching several quality control guides and maintenance at construction sites. The guide consists of a total of nine chapters such as Application Range, Overview, the Structure of Porous Concrete, the Design of Package Thickness, Package Materials for Porous Concrete, Construction Methods, Quality Assurance and Inspections, Construction Site Quality Control, and Maintenance. It describes quality control guidelines in all steps such as methods for transporting porous concrete from the factory to the construction site, cautions for construction work at construction sites, maintenance, and management. The Guide for the Construction Site Quality Control of Porous Concrete is expected to ensure the quality of porous concrete, to reduce national costs for quality assurance, and to help ensure the health and safety of Korean people.

A Study on Garden Facility Management of Seoul Garden Show 2015 and 2016

  • Hong, Kwang-pyo;LEE, Hyuk-jae
    • International Journal of Advanced Culture Technology
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    • v.7 no.2
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    • pp.125-136
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    • 2019
  • This study focuses(selected) on garden facilities of designer gardens created at the 1st and 2nd Seoul Garden Shows and examined installed facilities at each designer garden by categorization according to type, material and functions. The study observed problems occurring from maintenance of garden facilities as time passes by and collected basic data to develop maintenance guideline aiming to make contribution to further spreading and promotion of high quality garden culture. This study examined all gardens created at 1st and 2nd Seoul Garden shows in 2015 and 2016. There were 18 gardens built in 2015 and 16 in 2015.The study looked at responsible entities for maintenance of facilities and examined maintenance system for managing these gardens. Garden facilities of the study were categorized into paving, facility for rest, playground, water facility, environmental sculpture and planting media facility according to categorization by landscape design standards and construction guidelines. Target gardens of this study are maintained mostly by citizen gardeners who are passionately carrying out maintenance work while communicating with designers. However, these citizen gardeners lack technical knowledge to manage various facilities. Also, maintenance manuals submitted by garden designers do not offer sufficient details on facility maintenance which calls for professional maintenance and clear instructions on facilities from early phase of design.

Guidelines for Determining Length of Tunneled Dialysis Catheter (터널식 투석관의 길이 결정 가이드라인)

  • Park, Ho-Sung;Kim, Jae-Seok
    • Journal of the Korean Society of Radiology
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    • v.16 no.3
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    • pp.241-248
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    • 2022
  • A guideline for determining the optimal catheter length according to the patient's physique during tunnel-type dialysis catheter insertion used in renal failure patients is presented, and the maintenance of the function of the dialysis catheter is evaluated. From October 1, 2015 to February 31, 2016, a total of 110 (male : female = 73 : 37) patients who underwent tunnel-type dialysis catheterization performed at our hospital were treated without using guidelines. The group was divided into A group, and the group treated using the guideline into B group. Results were analyzed statistically using SPSS 20.0. As a result of the dialysis catheter insertion procedure according to the use of guidelines, the function maintenance rate of group A was 81.8%, and the function maintenance rate of group B was 96.3%. In the case of tunnel dialysis catheter procedure, the function maintenance effect was statistically significant in the group treated using the guideline compared to the group not using it (p<0.05). It can be said that it is more effective when information on the patient's underlying disease is reflected in addition to the use of guidelines.

A Study on Relations between Deterioration of Physical Functions due to Aging and Bathroom Design Guidelines for the Elderly (노화로 인한 신체적 기능 쇠퇴와 고령자를 위한 욕실 디자인 가이드라인 관계 연구)

  • Lee, Yeun-Sook;Lim, Hyun-Jin;Lee, Ji-Hye;Ahn, Chang-Houn
    • Korean Institute of Interior Design Journal
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    • v.22 no.5
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    • pp.188-198
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    • 2013
  • Advancement toward aging society has presented the importance of house planning in consideration of the elderly, increasing the necessity of such planning. Therefore the importance of indoor design guideline for elderly houses has been stressed and the understanding of the aging in regard to this trend will create more mature spaces. In line with this trend the purpose of this study is to study the medical factors related with bathroom interior design guidelines of the existing elderly houses from the viewpoint of deteriorating physical functions due to aging process. In order to research the deterioration of physical functions due to aging literatures of medical and exercise physiology were used and concerning the existing bathroom design guidelines for the aged people, the guideline items of behavior facilitation, physiological maintenance and perceptual maintenance aspects out of Murtha & Lee's user benefit criteria(1976) related with physical functions were selected to research in relation with the knowledge about the deterioration phenomena of physical functions. Physical aging and deterioration aspects were classified from the viewpoint of musculoskeletal disorder, cardiovascular disorder, respiratory disorder, gastronomy disorder, urology disorder, somatosensory disorder, endocrine disorder, immune disorder, nervous disorder and skin diseases and these were utilized in interpreting total 100 items of bathroom design guideline. Because bathroom is the space where many physical movements are done, it had the closest relationship with the deterioration of musculoskeletal health in general and as bathroom is the space where people use water and feel the difference in temperature and moisture more than other spaces, deterioration of skin and somatosensory health had the next closest relationship. The result of this study revealed that regarding the deterioration of physical functions of the elderly people in aspect of their perceptibility as designers will design creatively and sincerely based on its relationship with nervous system in future, the result of this study will be used to develop better spatial designs efficiently to meet for the aging society.

Development of Guidelines for Nonpoint Source Control in Roads (도로 비점오염원 관리를 위한 기초 연구 및 지침 개발)

  • Kim, Lee-Hyung;Lee, Eun-Ju;Lee, So-Young;Ahn, Woo-Young
    • Journal of Korean Society on Water Environment
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    • v.23 no.4
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    • pp.423-428
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    • 2007
  • The 21st century is that both human and environment live together. The advancing knowledge concerning our environment instigates a change in understanding about the physical surroundings. The construction field particularly induces significant improvements that are environmental-friendly. To convene this demand, several manuals and guidelines related to the environmental issues have been enacted and amended. Especially the manuals and guidelines issued from Ministry of Environment (MOC) and Ministry of Construction and Transportation (MOCT) is requiring the addition of environmental knowledge in construction technology. Recently, environmental assessments and advanced environmental measures in various kinds of construction are persuasively been carried out. The policy of Total Maximum Daily Load is the one more reason for the revisions of the manual and guideline, which is really requiring the addition of the environmental knowledge in construction technology. Therefore, this research is focusing on revising the manuals and guidelines related to road construction and maintenance works issued from MOCT.