• 한국화재소방학회논문지
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• 제19권3호
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• pp.37-43
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• 2005

고층건물 화재 시 소방대원은 구조장비 및 진압장비를 가지고 안전하고 신속하게 화재현장에 도착하여야 하고, 장시간 소요되는 인명구조 및 화재진압활동을 위해서는 충분한 에너지를 가지고 있어야 하므로 이를 위해 비상용승강기의 설치를 법으로 규정하고 있다. 그러나 현재 국내에 설치되는 비상용승강기는 그 기능과 구조적인 면에서 많은 문제점을 노출하고 있어 소방활동에 적합한 방향으로의 성능개선이 절실히 요구되고 있다. 따라서 본 연구에서는 국내외 비상용승강기 관련 규정을 살펴보고, 화재 시 비상용승강기를 운용하는 소방공무원을 대상으로 설문조사를 실시하여 문제점 등 현황을 파악하고, 그에 따른 개선방안을 제시하였다.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2006년도 제37회 하계학술대회 논문집 B
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• pp.1075-1076
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• 2006

The wide spread of DC electric railway systems such as urban rapid transits including heavy rail and light rail transits has significant ramification as the stray currents from return conductor rails can cause the electrochemical interference, that is, the electrolytic corrosion of both rails and outside underground metallic infrastructures. The immature understanding of either the railway authority who is responsible for establishing the necessary provisions at the design stage or the affected parties makes it difficult to prepare the optimum range of solutions for the long-pending interference problem. In advanced countries, however, numerous assessment studies have been carried out on the stray current interference, by which protective standards and regulations are provided under the collaboration and agreement of the related parties. In this paper, we introduce a european standard from IEC, namely, "IEC 62128-2:2003 railway applications-fixed installations -part 2: protective provisions against the effects of stray currents caused by d.c. traction systems" and a "Code of Practice" produced by Victorian electrolysis committee (VEC) based on "Electricity Safety Act 1998" and "Electricity safety (stray current corrosion) regulations 1999" of Victoria state, Australia.

• 아동학회지
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• 제15권1호
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• pp.5-21
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• 1994

The purpose of this study was to develop a scale for evaluation of early childhood programs in Korea. The procedures included content validation and a pilot test. A total of 192 items in 10 major areas was developed based on the review of literature and discussions with professionals in early childhood education. The 10 areas include: scheduling, curriculum, interation, physical environment, materials, nutrition, health and safety, administration, staff qualifications, relationships with parents, and evaluation. The pilot scale was administered to 428 classroom teachers and directors, and 47 college professors in early childhood education. The items were rated on a 3-point scale in terms of importance as evaluation criteria. The methods for data analysis included item means and standard deviations for content validation, Cronbach ${\alpha}$ for reliability, and factor analysis for construct validity. Most items in 10 areas were rated as moderate to highly important (average 2.3), especially items in curriculum and staff qualifications. Two factors emerged from the data: institutional management, and curricular planning and implementation. The Cronbach ${\alpha}$ levels were .70 or higher in most areas, but the range covers from .48 to .91. Based on the pilot data, 143 items were selected for the second year study.

• Steel and Composite Structures
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• 제1권1호
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• pp.1-16
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• 2001

Due to aesthetic, economic, and structural performance, the use of structural hollow sections as columns in both continuous moment resisting and nominally pinned construction is attractive. Connecting the beams to these sections is somewhat problematic as there is no access to the interior of the section to allow for the tightening of a standard bolt. Therefore, bolts that may be tightened from one side, i.e., blind bolts, have been developed to facilitate the use of site bolting for this arrangement. This paper critically reviews available information concerning blind bolting technology, especially the performance of fasteners in shear, tension, and moment resisting connections. Also provided is an explanation of the way in which the results have been incorporated into design guidance covering the particular case of nominally pinned connections. For moment resisting connections, it is concluded that whilst the principle has been adequately demonstrated, sufficient data are currently not available to permit the provision of authoritative design guidance. In addition, inherent flexibilities in the connections mean that performance equivalent to full strength and rigid is unlikely to be achievable: a semicontinuous approach to frame design will therefore be necessary.

• Safety and Health at Work
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• 제4권3호
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• pp.123-135
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• 2013

Exposure to manganese (Mn) is associated with neurobehavioral effects. There is disagreement on whether commonly occurring exposures in welding, ferroalloy, and other industrial processes produce neurologically significant neurobehavioral changes representing parkinsonism. A reviewof methodological issues in the human epidemiological literature onMnidentified: (1) studies focused on idiopathic Parkinson disease without considering manganism, a parkinsonian syndrome; (2) studies with healthy worker effect bias; (3) studies with problematic statistical modeling; and (4) studies arising from case series derived from litigation. Investigations with adequate study design and exposure assessment revealed consistent neurobehavioral effects and attributable subclinical and clinical signs and symptoms of impairment. Twenty-eight studies show an exposure-response relationship between Mn and neurobehavioral effects, including 11 with continuous exposure metrics and six with three or four levels of contrasted exposure. The effects of sustained low-concentration exposures to Mn are consistent with the manifestations of early manganism, i.e., consistent with parkinsonism. This is compelling evidence thatMnis a neurotoxic chemical and there is good evidence that Mn exposures far below the current US standard of $5.0mg/m^3$ are causing impairment.

• 대한설비공학회:학술대회논문집
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• 대한설비공학회 2008년도 하계학술발표대회 논문집
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• pp.569-574
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• 2008

Recently, the domestic remodeling market is increased in scale. This study is to develop the sanitary piping system which improves quality of life and facility performance when the aged public housing is remodeled. Above all, we found out three standard floor plans in bathrooms of the public housing. And then, the plan and section types of the sanitary piping system were developed for the on-floor piping, a construction cost of each section types was estimated to review the economical fact. Also, the field mock-up test was performed in the type of the pipe shaft with on-floor pit. In result, the developed sanitary piping system was available for the remodeling public housing without a great facility cost. Additionally, the sanitary pipe was replaced easily through the shaft and on-floor fit. And a noise was reduced to a lower unit when the water flowed down.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2008년도 춘계학술대회 논문집
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• pp.1695-1704
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• 2008

The problems associated with constructing high-speed concrete track embankments over soft compressible soil has lead to the development and/or extensive use of many of the ground improvement techniques used today. Drains, surcharge loading, and geosynthetic reinforcement, have all been used to solve the settlement and embankment stability issues associated with construction on soft soils. However, when time constraints are critical to the success of the project, owners have resorted to another innovative approach. Especially, the design criteria of residual settlement is limited as 30mm for concrete track embankment, it is very difficult to satisfy this standard using the former construction method. Pile net method consist of vertical columns that are designed to transfer the load of the embankment through the soft compressible soil layer to a firm foundation and one or more layers of geosynthetic reinforcement placed between the top of the columns and the bottom of the embankment. This paper will present the guidelines for the design of pile net method to supported embankments. These guidelines were developed based on a review of current design methodologies and a parametric study of design variables using numerical modeling.

• The International Journal of Costume Culture
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• 제9권2호
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• pp.125-132
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• 2006

This Study in order to review the history of our children's costumes, this study examined the socio-cultural background of Chosun dynasty and then, reviewed children's costumes comprehensively during that period according to their considerations, kinds, colors and patterns. In addition, this study explored the possibility of making use of the characteristics of children's costumes during Chosun dynasty, since it was perceived that if our children should be dressed in a traditional costume designed with some traditional costume characteristics and ornaments, our tradition would be enlivened in their life and spirit. It is results can be summed up as follows; Our traditional costumes consisted basically of Yu(襦), Go(袴). Sang(裳) and Po(袍) and additionally of Headgear(冠帽), Dae(帶), Hwa(靴) or Yi and Beosun, which must prove that the Korean people is cultural people. Our ancestors were dressed first in Yu(襦), Go(袴). Sang(裳) and Po(袍) to be supported by dae(帶). Our traditional costume style was 'front adjustment' or otherwise, left or right adjustment. Commoners' costumes would change after the series of foreign invasions and again during mid-late Chosun dynasty. During the period of King Sukjong, Jeogori was far shorter and smaller, while China was more diversified and voluminous enough to look like a jar.

• 경영과정보연구
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• 제3권
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• pp.419-438
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• 1999

Following is an idea to utilize the business ethics as one of business administration strategies. Firstly, conversion of perception is needed in the business administration. Neglecting the pursuit of profit, the conventional strategic goal, is not desirable, we need to, however, have a mind that the consumer and environment centered mind is indispensible to the survival and growing of a business ultimately in establishing a strategic goal of diversified environmental changes. Secondly, conversion of the Chief Executive Officer (CEO)'s attitude in business administration is needed. It is necessary for the CEO to have a strong belief that the business ethics is indispensible to the survival and growing of a business by way of fair and logical management. Therefore the business ethics should be improved since the CEO's ethics can be the standard of his business. Thirdly, the business concerned parties should be considered. The realization of business ethics should be done in a certain way so as to protect the benefit of the all concerned parties such as stockholders. employees, consumers, suppliers, competitors, the local community, etc., since a business is an organization that can exists and grows only in the coexistence with its environment and concerned parties. Fourth, the business ethics should be transformed into a business culture through the enlargement of the general principles of and of employees' behavior as a management strategy. Lastly, business ethics should be improved through continuous evaluations to accommodate its environmental change.

• 한국IT서비스학회:학술대회논문집
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• 한국IT서비스학회 2009년도 춘계학술대회
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• pp.270-276
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• 2009

This paper outlines opportunities and challenges in the Implementation of BPEL based WFMS(Work Flow Management System) for the MES(Manufacturing Execution Systems) level in semiconductor manufacturing. At present, the most MES that are composed of several hundreds of applications in semiconductor wafer fabrication shop have the same problems as others about flexibility and adaptability. When a plant has to produce new product mix, remodel the manufacturing execution process, or replace obsolete equipments, the principal road blocks for responding to new manufacturing environment are inflexible communication infrastructure among the manufacturing process components and the difficulty in porting existing application software to new configurations. In this paper, the issues about BPEL standard, used for the flexibility of Workflow Management System, are presented. We introduce the integrated development framework named nanoFlow which is optimized for developing the BPEL based WFMS application for automated manufacturing system. We describe a WFMS implemented with using nanoFlow framework, review and evaluate the system in terms of flexibility and adaptability.