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Evaluation on Low-floor Bus Package Layout from the Perspective of Universal Design

  • Kim, Sun-Woong;Kim, Ji-Yeon;HwangBo, Hwan;Hwang, Bong-Ha;Moon, Yong-Joo;Ji, Young-Gu
    • Journal of the Ergonomics Society of Korea
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    • v.30 no.5
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    • pp.659-669
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    • 2011
  • Objective: The aim of this study is to suggest a package layout guideline for low-floor bus by interview with passengers and observations of their behavior. Background: Increasing attention has been introduced the low-floor bus to be more suitable for use by transportation handicapped. Complex issues are involved in providing comfortable services to all people. We are going to suggest package layout guidelines for more comfortable and suitable travel to all people. Method: The two times of survey and video observation sessions were conducted on low-floor buses in Seoul; (1) a finding of potential issues in the first session, (2) a confirming of issues from the last session. Results: The three of major issues were founded in this study; (1) difficulties in supporting body when standing, (2) difficulties in sitting on front wheel pan seat, (3) difficulties in passing through the aisle. Conclusion: There were clear differences between public and transportation handicapped in using some tools which are used for support body such as roof hand rails, side hand rails, and hand rail rings. Some of design problems were founded to improve from the perspective of ergonomics and universal design. Such differences and design guidelines have to be considered in bus design as well as commercial vehicle. Application: The proposed design guidelines can be used to development of low-floor bus and other public transportations.

A Study on a Cost-Based Information Management System for Apartment Finishing Work Items (원가기반의 공동주택 마감재 정보관리 시스템에 관한 연구)

  • Lee, Hoon-Ku;Lee, Yoon-Sun;Kim, Kyung-Sook;Kim, Jae-Jun
    • Korean Journal of Construction Engineering and Management
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    • v.11 no.1
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    • pp.29-37
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    • 2010
  • In recent years, apartment finishing work items have increasingly become more upscale and diverse, and the kinds have increased in exponential numbers. A huge amount of information about finishing work items is produced and changed in the stages of planning finishing work item design and selecting alternatives in the early days of an apartment project. However, there are many problems raised by the poor information management of finishing work items. Thus this study suggested a cost-based information management system to manage information about finishing work items generated in the initial stage of an apartment project. In order to build the suggested system, the investigator designed an information management system based on the concepts and organization of system. And after setting a scenario of selecting finishing work items by conditions including the initial information values of finishing work items, information management for each alternative, and cost fix or free condition, I implemented and applied a prototype of an information management system for finishing work items among the participants including the project manager, interior designer, and builder.

Post Occupancy Evaluation for Office Building with An Underfloor Air Distribution System (바닥공조 시스템이 적용된 사무공간의 거주후 성능평가)

  • Yoon, Seong-Hoon;Jang, Hyang-In;Jung, Hae-Kwon;Choi, Sun-Kyu;Yu, Ki-Hyung
    • Journal of the Korean Solar Energy Society
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    • v.31 no.6
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    • pp.78-85
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    • 2011
  • In this study, an underfloor air distribution(UFAD) system installed on the S. office building was evaluated for its indoor environmental quality performance. Field measurement and survey were conducted for the overall POE(Post Occupied Evaluation). PMV(including temperature, humidity, air velocity and globe temperature) and several environmental components were measured while thermal comfort, thermal sensation, acoustical environment and others. were investigated through survey. Except for the direct upper part of the air supply diffuser on the floor, the indoor velocity was less than 0.25m/s, which has been suggested by ASHRAES tandard 55 as the limit for thermal comfort. MRT of the perimeter zone of the room showed a higher value than that in the interior because of the introduced solar radiation through the building envelope. PMV was generally maintained in the range of thermal comfort (from -0.5 to +0.5), though it weighted to the warm side. It was reported to have 61% positive response on thermal comfort and 55% on neutral thermal sensation. The results of each survey item showed some gender-based differences. Specifically, female respondents had higher degree of dissatisfaction with indoor air cleanness and acoustical privacy. The working surface showed more than 400 lux and the equivalent noise level showed less than 50 dB(A). In conclusion, the results of the measurement and survey showed good agreement. Indoor environmental quality of the subject office room where the UFAD system was installed showed an overall excellent performance.

Combining Timber Production and Wood Processing for Increasing Forestry Income: A Case Study of 6th Industrialization in Korean Forestry

  • Won, Hyun Kyu;Jeon, Hyon Sun;Han, Hee;Lee, Seung Jung;Jung, Byung Heon
    • Journal of Forest and Environmental Science
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    • v.33 no.4
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    • pp.355-360
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    • 2017
  • This study was aimed to analyze the increased forestry incomes by combining timber production and wood processing, which is one of 6th industrialization types in Korean forestry. The selected household has been engaged in forestry for two generations and they produce timber and associated wood products in their own facility. The wood products include dimension lumber, interior wood material, cutting board, and cube chips, the household also utilize logging and sawmill residues as well as seed and seedlings as by-products. Incomes and expenses that have been incurred on individual processes of the sequential timber production and wood processing were surveyed, and we analyzed the economic outcomes of entire business. The results of this study indicate that the gross income of the household is 122.3 million Korean won and the net income is 93.6 million Korean won. The net income of the household is approximately 2.8 times higher than the average net income of whole households in the forestry of Korea in 2016, which is approximately 4.3 times higher than that of households that have been particularly engaged in timber production over the country. We found that the 6th industrialization by combining the two sequential processes creates approximately 3.2 times as much added value compared to the case relying on timber production only.

Clinical Practice Guideline for Taeyangin Disease of Sasang Constitutional Medicine (태양인체질병증 임상진료지침)

  • Park, Hye-Sun;Joo, Jong-Cheon;Lee, Eui-Ju
    • Journal of Sasang Constitutional Medicine
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    • v.27 no.1
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    • pp.71-81
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    • 2015
  • Objectives This research was proposed to present clinical practice guideline (CPG) for Taeyangin Disease of Sasang Constitutional Medicine (SCM). This CPG was developed by the national-wide experts committee consisting of SCM professors. Methods This guideline was performed that search and collection of literature related SCM such as "Dongeuisusebowon", textbook of SCM, clinical guidebook of SCM and fundamental research to standardize diagnosis of Sasang Constitutional Medicine. Journal search related clinical trial or human complementary medicine of SCM was performed domestic and overseas. Finally, 1 article was selected and included in CPG for Taeyangin disease. Results & Conclusions The CPG of Taeyangin disease include classification, definition and standard symptoms of each pattern. Taeyangin disease is classified into exterior-origin lower back (EOLB) disease and interior-origin small intestine (IOSI) disease by region of symptom. EOLB can be replaced with Oegam-yocheok and IOSI can be replaced with Naechok-sojang that is Korean pronuncation. EOLB disease is classified into lower back favorable symptomatology (LBFS) and lower back unfavorable symptomatology (LBUS). Lower back is to say Yocheok, so LBFS can be called Yocheok favorable symptomatology and LBUS can be called Yocheok unfavorable symptomatology. LBUS is to say paraparesis symptomatology or Haeyeok, that is Korean pronunciation, symptomatology. IOSI disease is classified into small intestine favorable symptomatology (SIFS) and small intestine unfavorable symptomatology (SIUS). Small intestine is to say Sojang, so SIFS can be called Sojang favorable symptomatology and SIUS can be called Sojang unfavorable symptomatology. SIUS is to say regurgitation symptomatology or Yeolgeok, that is Korean pronunciation, symptomatology.

Clinical Practice Guideline for Soyangin Disease of Sasang Constitutional Medicine: Chest-Heat congested (Hyunggyeok-yeol) Symptomatology (소양인체질병증 임상진료지침: 흉격열병)

  • Park, Hye-Sun;Hwang, Min-Woo;Lee, Eui-Ju
    • Journal of Sasang Constitutional Medicine
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    • v.26 no.3
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    • pp.262-271
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    • 2014
  • Objectives This research was proposed to present Clinical Practice Guideline(CPG) for Soyangin Disease of Sasang Constitutional Medicine (SCM) ; Chest-Heat congested(Hyunggyeok-yeol) Symptomatology. Methods This CPG was developed by the national-wide experts committee consisting of SCM professors. First, collection and organization of literature related to SCM such as Donguisusebowon, Text book of SCM, Clinical Guidebook of SCM and Fundamental research to standardize diagnosis of Sasang Constitutional Medicine was performed. Secondly, journals related to clinical trial or Human complementary medicine of SCM were searched. Finally, 4 articles were selected and included in CPG for Chest-Heat congested(Hyunggyeok-yeol) Symptomatology of Stomach Heat-based Interior Heat disease in Soyangin disease. Results & Conclusions CPG of Chest-Heat congested(Hyunggyeok-yeol) symptomatology in Soyangin disease includes classification, definition and standard symptoms of each pattern. Chest-Heat congested(Hyunggyeok-yeol) symptomatology is classified into mild and moderate pattern by severity. Chest-Heat(Hyunggyeok-yeol) symptomatology Mild pattern is classified into Chest-Heat congested(Hyunggyeok-yeol) initial pattern and Chest-Heat congested(Hyunggyeok-yeol) advanced pattern. And Chest-Heat congested (Hyunggyeok-yeol) moderate pattern is classified into Clear Yang Failure of Stomach(Weguck-cheongyang Bulsagnseung) pattern (Upper wasting-thirst(Sangso) pattern), Clear Yang Failure of Large Intestine (Daejang-cheongyang Bulsangseung) pattern (Middle wasting-thirst (Jungso) pattern).

A Study on the Smoke Hazard Increase of Flame-retardant-treated Interior Decorative Textile -Focused on Viscose Rayon Textile Wallcovering- (난연 처리된 실내장식섬유의 연기 위해성 증가에 관한 연구 -비스코스 레이온 섬유 벽지를 중심으로-)

  • Lee, Joonhan;Kim, Sun Mee
    • Journal of Fashion Business
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    • v.24 no.3
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    • pp.30-39
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    • 2020
  • This study was conducted to identify problems in domestic flame-retardant performance specifications. Currently, the domestic wallcovering anti-inflammatory regulations are not prepared for damage caused by smoke, with the carbonized area as the main function. In particular, given that smoke is the main cause of human casualties and injuries in a fire, it is reasonable that the flame density and toxicity of the wallcovering should also be the main performance indicators. The scope and method of research in this study were as follows. First, a prior study related to fire on various wallcoverings was considered. Second, it raised questions about the effects of smoke in the event of a fire and domestic anti-inflammatory performance tests. Third, textile wallcovering samples were manufactured with viscose rayon for experimental verification of the problems and tested by Korean and EU standards without flame retardant processing to analyze the differences between each regulation. Fourth, the performance of flame retardant wallcovering according to Korean standards was evaluated using smoke density and harmful gas testing methods. The results of each test were as follows. Non-fire retardant wallcovering was rejected by Korea standards. However, B-s1.d0 in Europe. Smoke density testing and harmful gas by domestic combustion processing on the same sample showed that the smoke density increased about 4.3 times more than before, and the harmful gas test showed that the suspension of the post-processing sample slowed earlier than the non-processed sample.

A Cost-Based Interior Information Management for an Apartment Housing Project (원가기반의 공동주택 마감재 정보관리 방안 연구)

  • Lee, Hoon-Ku;Lee, Yoon-Sun;Moon, Hyuk;Kim, Jae-Jun
    • Korean Journal of Construction Engineering and Management
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    • v.10 no.5
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    • pp.76-84
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    • 2009
  • Korea's construction industry experienced no difficulty managing the costs of finishing work items in the apartment housing field thanks to the uniform specification and the standardized costs of finishing work items. Finishing work items have continuously become more high class and differentiated, which has caused the costs of finishing work items to rise. This study identified problems with the cost management when planning finishing work items and choosing their alternatives based on the current process applied to the planning stage of finishing work items. It also found problems with the information management of finishing work items including design, cost, and work information that took place in bulk. Based on the identified problems, the design, cost and work information of finishing work items was integrated so that they could management the costs and information when planning finishing work items and selecting their alternatives. Then a cost-based information management process was suggested for finishing work items by improving each of the project cost management elements. Finally, an information model for finishing work items was built by studying the ways to integrate the information hierarchy and library of finishing work items.

Design and Control of a Biomimetic Fish Robot (생체 모방 로봇 물고기의 설계와 제어에 관한 연구)

  • Kim, Young-Jin;Kim, Seung-Jae;Yang, Kyung-Sun;Lee, Jeong-Min;Yim, Chung-Hyuk;Kim, Dong-Hwan
    • Transactions of the Korean Society of Mechanical Engineers A
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    • v.36 no.1
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    • pp.1-7
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    • 2012
  • This paper introduces the mechanical design, fabrication, and control of a biomimetic fish robot whose driving motions resemble a real fish's flexibility and movement. This robot uses two motors create flexible movement like that of a fish. Several schemes, such as neutral buoyancy, fast underwater swimming, and direction changes, are introduced. The tail of the fish robot is made of a polymer material for flexible movement. The interior of the tail contains a joint and a wire. A sine wave command was applied to the tail to produce motion resembling a real fish swimming, and a buoy control device was installed. The up and down motion of the robot fish was controlled using this device.

Numerical Study on the Effect of Range Surrounding Environment on Detecting Time for Cooking Oil Fire in Kitchen (주방내 조리용 기름 화재 발생시 레인지 주변 환경이 감지 시간에 미치는 영향에 대한 수치해석적 연구)

  • Lee, Jin-Woo;Ko, Gwon-Hyun;Ryou, Hong-Sun;Jang, Yong-Jun;Jung, Woo-Sung
    • Fire Science and Engineering
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    • v.24 no.1
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    • pp.134-139
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    • 2010
  • According to the "Yearbook of disaster response, fire safety and fire statistics (NEMA: National Emergency Management Agency)", approximately 34% of all fire is interior fire such as hotel, restaurant and residence and more than 53% of which is occurring in the kitchen. The evaluation of fire extinguishing system in the kitchen is performed in accordance with the "Korea Fire Equipment Inspection Standard (KOFEIS 0101-1)" which is using one environmental condition. However, only using one environmental condition is not enough to evaluate the performance of the automatic fire extinguisher in kitchen fire. So the study of fire detecting characteristic about various environmental condition needs. In this study, the numerical analysis is carried out about detecting time characteristic for various range's surrounding environment. As a result, it showed up to 100 s difference in the detection time depending on the position of the range. And detecting time also showed difference for on-off hood operation. From this results, it can be verify and improve the evaluation standard for the fire extinguishing system in kitchen fire.