• 한국안전학회지
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• 제18권3호
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• pp.131-140
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• 2003

An accident involving a boiler can result in a disaster since it handles high-pressurized steam so that it may cause an explosion. Therefore, the boiler is very susceptible to industrial accidents. This thesis aimed to develop counter-plans to prevent industrial accidents involved the boiler. At first after collecting accident cases involving boilers, a survey on the trait of them was carried out. Ant on the other hand a qualitative analysis was conducted to draw out hazardous components in the boiler itself and their inherent relative importance was assessed. Through this procedure, 'negligence of unsafe condition' was noted as the major cause for unsafe acts whereas 'fault in work procedure' for unsafe condition. In the meanwhile, results of a hazard analysis using FMEA technique ranked gas safety devices, a switch preventing gas from under-pressurization, protect relays high. In particular, it was pointed out that the water feeding and steam subsystem has more components in hazard than other subsystems. Considering these analyses results, counter-plans to improve safety management was suggested also.

• 대한족부족관절학회지
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• 제16권4호
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• pp.229-234
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• 2012

Purpose: The purpose of this study is to find out clinical and radiological outcomes in 70 patients of both calcaneal fracture. Materials and Methods: From March 1993 to March 2011, 70 patients underwent non-operative management or operative management at our hospital. Conservative management was performed in 15 cases of undisplaced fracture (Group A). Operative management was performed in 125 cases including 32 cases of undisplaced fracture (Group B), 60 cases of joint depression type fracture (Group C), 33 cases of tongue type fracture (Group D). Results were evaluated by VAS score, AOFAS score, circle draw test, Bohler angle (BA), Gissane angle, width & height of calcaneus. Results: VAS scores were 2.0 in group A, 2.0 in group B, 2.2 in group C, 2.7 in group D. AOFAS scores were 90.4 in group A, 91.9 in group B, 72.2 in group C, 79.2 in group D. Circle draw tests were 8.4 cm in group A, 10.1 cm in group B, 7.6 cm in group C, 7.9 cm in group D. Bohler angles (BA) and Gissane angles were $19.1^{\circ}$, $96.7^{\circ}$ in group A, $21.8^{\circ}$, $119.1^{\circ}$ in group B, $26.3^{\circ}$, $121.2^{\circ}$ in group C, $19.7^{\circ}$, $119.7^{\circ}$ in group D. Calcaneal widths and heights were 39.5 mm, 31.6 mm in group A, 32.7 mm, 37.0 mm in group B, 34.4 mm, 39.2 mm in group C, 35.2 mm, 38.7 mm in group D. Conclusion: The main cause of bilateral calcaneal fracture is an injury from a fall, and the cases were more frequently occurred in men than women. Also the fracture in the right side tend to occur more severely compared to the left side. The surgical treatment shows better results than conservative treatment in bilateral calcaneal fracture.

• 한국전문물리치료학회지
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• 제22권1호
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• pp.37-48
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• 2015

This study aimed to investigate the effect of the abdominal drawing-in maneuver (ADIM) and abdominal expansion maneuver (AEM) on trunk stabilization, as well as trunk muscle activities and differences in quadruple visual analogue scale, Korean Oswestry Disability Index, and Fear Avoidance Beliefs Questionnaire scores, in patients with chronic low back pain and lumbar spine instability. To increase intra-abdominal pressure during the trunk stabilization exercise, the technique of pushing the abdomen out using diaphragmatic abdominal breathing suggested by Pavel Koral was used, which we termed the AEM. Fifty patients who tested positive on more than three of the five lumbar spine instability tests were separated from 138 patients with chronic low back pain of these patients, 16 were placed in the control group (trunk stabilization exercise), 17 were placed in the ADIM group (trunk stabilization exercise with ADIM), and 17 were placed in the AEM group (trunk stabilization exercise with AEM). Each group participated in the study for 30 minutes three times weekly for 4 weeks. Surface electromyography was used to measure the trunk muscle activities during the kneeling forward and supine bridging positions, and one-way repeated analysis of variance was used to determine the statistical significance of the trunk muscle activities in the rectus abdominis, internal oblique (IO), erector spinae, and multifidus (MF) muscles. The ADIM and AEM groups showed relatively larger improvements in psychosocial and functional disability level than control group. There were significant changes among the three groups, those from the measured values of the AEM group was significantly higher than the other two groups in changes in IO and MF trunk muscle activities (p<.05). This finding demonstrates that trunk stabilization exercises with AEM is more effective than ADIM for increasing trunk deep muscle activity of chronic low back pain patients with lumbar spine instability.

• 한국HCI학회:학술대회논문집
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• 한국HCI학회 2009년도 학술대회
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• pp.884-887
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• 2009

웹을 기반으로 하는 소셜네트워크서비스(SNS:Social Network Service)는 비약적 발전을 거듭하여 다양한 형태로 사용자에게 제공되고 있다. 관계/관심에 기반 한 서비스로 사람들의 참여와 관계에 의해서 Data가 쌓이고 이를 통해 다시 지속적인 참여와 관계를 유도하는 방식의 SNS는 웹을 기반으로 시작하여 모바일시장으로 확장되었다. 모바일 시장에서의 성공적인 SNS 사업모델의 개발은 모바일이 가지고 있는 사용자의 사용행태를 기반으로 한 서비스 창출에 그 요인이 있다고 볼 수 있다. 이러한 배경에서 TV를 활용한 SNS 개발이 IPTV 사업자를 중심으로 국내외에서 지속적으로 연구되고 있다. 하지만 SNS를 위해 필수적인 요소인 TV에서의 개인화는 TV의 공공적 성격에 의해 연구의 진행이 미진한 실정이다. 이 연구는 IPTV에서의 개인화 방안을 사용자 행태분석을 통해 연구하고자 한다. TV의 개별 사용자를 위한 개인화는 PC나 모바일 기기와의 개인화와는 다른 방식의 개인화를 요구한다. 따라서 개별, 가족구성원 그룹별, 가족구성원 전체별로 개인화의 유형을 분리하고 이에 대한 행태분석을 실시한 결과 공공재 성격이 강한 TV에서의 개인화는 크게 개인화의 정도, 개인화의 유형, 개인화의 표현방식, 개인화의 구성방식에 있어서 PC나 모바일 기기와 다른 차이점이 있었다.

• 한국실내디자인학회논문집
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• 제8호
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• pp.39-43
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• 1996

Based on individual characteristics and values, human preference on interior finishing material is various . Finishing materials, however, do not seem to satisfy those characteristics and values. Given the aspects of life style and population classes, finishing materials are an important part of human life and draw much attention . As a result, there is a necessity to study them systematically. This study related finishing materials to tenants, understands the characteristics both of them, and identifies in terrelations between them in order to find out satisfaction and preference which teants have towards their finishing materials. As a result, this study is about design materials preference of tenants in apartment houses for the purpose of improving quality of finishing materials. A practical study method of questionnaire research was used to find out tenant's opinions on components of interior space.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2000년도 하계학술대회 논문집 A
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• pp.443-445
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• 2000

This paper describes the assessment of proper location of lightning arrester in combined transmission line which is connected with overhead line and underground cable. The modeling for simulation is established using the actual system in ATP Draw and EMTP. Simulation is carried out to find out the best point to install the arrester in given the model system. And also voltage and current is analyzed on cable covering protection unit(CCPU). The simulation result demonstrated the best location of arrester in the given transmission line through the detailed analysis and its assessment.

• 지식경영연구
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• 제15권3호
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• pp.1-12
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• 2014

It is tried to draw the failure traits of leadership by extracting leadership parts from previous failure studies and including some parts which mention failure leadership among leadership-related books. All of 5 patterns are drawn through total 13 types of study data. From 'insensitive to change' and authoritarianism which is mentioned 8 times in such 13 studies, to 'interpersonal problem', which is mentioned five times, traits which are mentioned at least five times are selected. There are drawn 5 traits including ${\Delta}$ authoritarianism ${\Delta}insensitive$ to change ${\Delta}lack$ of executive ability ${\Delta}populism$ and ${\Delta}interpersonal$ problem. As being examined in these 5 types of failure traits, the failure of leadership is ultimately happened because of communication heading for the inside without any communication(exchange) to the outside. That is, it is understood that authoritarian leaders don't perceive change correctly but make a wrong communication (populism) or break down communication. Additionally, the executive ability is to perform actually one's idea and to be achieved through incessant communication with members. Compared with other various studies to draw failure factors, these leadership traits have something in common. In the previous researches conducted the study of general failure factors, ${\Delta}adherence$ to preexisting business and resistance to change ${\Delta}unfeasible$ expansion strategy ${\Delta}blind$ faith in successful technology and innovation and ${\Delta}insufficiency$ to grasp competitor(consumer) are pointed out as the failure factors. It is deemed that these are happened because organizational management is headed for the inside without any communication (exchange) to the external environments. Matters unfolded through this paper until now are an attempt to apply the failure knowledge to a leadership part which is an individual field in business administration. It is considered that this study will be complemented through additional case study or quantitative analysis in the future.

• 한국HCI학회논문지
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• 제4권1호
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• pp.11-15
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• 2009

웹을 기반으로 하는 소셜네트워크서비스(SNS:Social Network Service)는 비약적인 발전을 거듭하며 다양한 형태로 사용자에게 제공되고 있다. 관계/관심에 기반 한 서비스로 사람들의 참여와 관계에 의해서 데이터가 쌓이고 이를 통해 다시 지속적인 참여와 관계를 유도하는 방식의 SNS는 웹을 기반으로 시작하여 모바일시장으로 확장되었다. 모바일 시장에서의 성공적인 SNS 사업모델의 개발은 모바일을 사용하는 사용자의 사용행태를 기반으로 한 서비스 창출에 그 요인이 있다고 볼 수 있다. 이러한 배경에서 TV를 활용한 SNS 개발이 IPTV 사업자를 중심으로 국내외에서 지속적으로 연구되고 있다. 하지만, SNS를 위해 필수적인 요소인 TV에서의 개인화는 연구는 TV의 공공적 성격에 의해 미진한 실정이다. 이 연구는 IPTV에서의 개인화 방안을 사용자 행태분석을 통해 연구하고자 한다. T의 개별 사용자를 위한 개인화는 PC나 모바일 기기와의 개인화와는 다른 방식의 개인화를 요구한다. 따라서 개별, 가족구성원 그룹별, 가족구성원 전체별로 개인화의 유형을 분리하고 이에 대한 행태분석을 실시한 결과 공공재 성격이 강한 TV에서의 개인화는 크게 개인화의 정도, 개인화의 유형, 개인화의 표현방식, 개인화의 구성방식에 있어서 PC나 모바일 기기와 다른 차이점이 있었다.

• 대한가정학회지
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• 제30권4호
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• pp.1-13
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• 1992

A computer simulation method for textile designs was developed using a generic-purpose graphics program, LUMENA and its results were applied for costume design simulation. Its design performance was comparable with those using specialized design package programs which are in general very expensive. Three areas of textile design, print pattern design, weaving design, and knitting design, were covered. In the print pattern design simulation, a gird network library was constructed by using basic methods of repeat, and a pattern library by scanning existing print patterns. Through the modification and synthesis of library patterns, many new print patterns could be obtained. In the weaving design simulation, a thread library and a draw-down library were constructed. Using them, simulations of woven textile structures were carried out. In the knitting design simulation, a stitch library and a detail library were made from various types of knit stitch and detail drawings of knit costume, respectively. They were used to make structural knitting patterns and jacquard knitting designs. Using those simulated textile designs, costume design simulation was carried out.

• 한국지반공학회:학술대회논문집
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• 한국지반공학회 2008년도 추계 학술발표회
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• pp.980-983
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• 2008

KICT has been carrying out inventory research on the cut slopes of national roads. Inventory research results are basic data used in cut slope management system. Inventory data are classified by general status, cut slope characteristics and inspector opinion. Cut slope inventory data are utilized to figure out dangerous slopes and decide survey ranking of detailed safety diagnostication. This paper will draw dangerous cut slope and more important inventory data in Chungcheongdo via correlation analysis.