• 한국가스학회지
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• 제26권6호
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• pp.24-29
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• 2022

이 논문은 LPG 자동차의 캠축베어링 시일의 오일누설, 컴퓨터커넥터 핀 손상에 의한 접촉불량, 베이퍼라이저 배부불량으로 인한 고장사례에 대하여 현상을 분석, 연구한 것이다. 첫 번째 사례는 실린더 헤드를 분해하여 확인한 결과 타이밍 시스템에서 가까운 엔진의 흡기캠축의 베어링과 시일의 조립부 손상으로 인해 이 부위로 엔진오일이 누설되는 것을 확인하였다. 두 번째 사례는 엔진컴퓨터로 공급되는 자동차의 시동을 제어하는 전원선의 커넥터 핀이 손상되어, 전원이 공급되지 않아 시동이 꺼진 것을 확인하였다. 세 번째 사례는 베이퍼라이저 내부에 이물질의 퇴적으로 인해 가스의 흐름이 원활하지 못하여 엔진의 부조화현상이 발생되었다. 결국, 베이퍼라이저에서 믹서로 적은 양의 가스를 공급하게 되고, 믹서의 스로틀 열림량을 제어하는 컴퓨터는 그 열림량만큼 공기를 공급하게 됨으로써 연소실에서 혼합기는 희박한 상태가 되어 엔진의 적정출력을 내지 못하는 것을 확인하였다. 따라서, 자동차가 최적의 운전조건이 될 수 있도록 자동차관련 시스템의 관리를 철저하게 해야한다.

• 영어어문교육
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• 제17권2호
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• pp.181-197
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• 2011

The purpose of this study is to measure how English immersion classes affect students. This study seeks to answer two questions. First, will the young learners gain an international sense? Second, will the students learn English naturally without having to be sent abroad to an English speaking country? Several kinds of immersion programs have been designed and implemented in Korea. However, many students have felt great stress and mental pressure in the immersion programs. Students find the programs stressful because English must be used at all times. In this paper, two groups of elementary school students are compared: one being the control group and the other being the experimental group, an immersion class. The results show that the mental health problems, sensitivities, and rates of depression in the immersion group are greater than those of the students in the control group. Therefore, the immersion students' overall mental health is substandard. The negative effects of lethargy and depression are made worse when they are placed in English only environments. The results indicate more attention should be focused on respecting and understanding the students' overall mental health when teaching them English.

• 수산경영론집
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• 제15권1호
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• pp.96-113
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• 1984

It has been appeared since 1979 that the pattern of laver culture changes from household management to entrepreneurial management. The typical entrepreneurial laver culture management (ELCM) can be defined as a management by the floating aquaculturing method and mechanical processing system. Historical studies show that the ELCM could be operated only under the following condintions; \circled1 securing capital, labor and aquaculturing farm. \circled2 Leveling up of technology to combine these resources effectively. \circled3 Realizing its true value of products for good profits. In turning from household mangement to ELCM, there are some obstacles as follows ; \circled1 Uncertainty, which cannot maintein the merit of mass production because the object of laver culture is living in the sea. \circled2 Immaturity of management owing manly to the lower level of technology and scarcity of competent managers. \circled3 Social problems ; lack of aquaculturing farm, overpopulation in fishing villiage, side-job with agriculture etc. For these reasons, there has been household management with overlabor and underconsumption in fishing village. In order that ELCM can enter the stage of maturity, those problems should be solved. Because ef laver industrial inferiority, these can be solved by the support assistance of government. As the required conditions in ELCM are filled by the government policy, ELCM are increased recently in its numbers.

• 동력기계공학회지
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• 제8권3호
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• pp.36-43
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• 2004

The effect of bath composition, plating condition and plating rate on the magnetic property of electroless Co-Cu-P deposits were investigated. With increasing $CuCl_2$ concentration in the bath, plating rate increased, while the Br value of deposit decreased sharply. Deposited surface were inferiority by the increase pH above 10.5, bath temperature higher than $80^{\circ}C$. Plating reaction had been ceased by the increase of pH above 11, bath temperature higher than $90^{\circ}C$ and under $40^{\circ}C$. The Br value of deposit was uniform with various concentration of complexing agent(sodium citrate) in the bath. The Br value of deposit was almost equal to that found by the addition of stabilizer (thiourea) and accelerator(NaF). The Br value of deposit was uniform in plating time(20min) and heat treatment temperature(below $200^{\circ}C$), and were confirmed to have adequate bath stability for practical use.

• 대한가정학회지
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• 제41권2호
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• pp.43-63
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• 2003

The purpose of this study is to investigate how much individual, relational, and contextual variables have an effect on the dating violence of premarital males and females. Researched are 369 male and female residents over 19 years who have experienced dating or were involved in any dating relationships in Daegu. The instruments of measurement are CTSⅡ scale and scales of relation to individual, relational, and contextual variables. The data are analysed through factor analysis, Cronbach's α, frequency, percentile, and stepwise regression analysis. The major findings of this study are as follows: First, individual variables that affect doing and victimization of dating violence are one's permission degree of dating violence, and psychological abuses experienced during childhood from one's mother. Second, relational variables that affect doing and victimization of dating violence are control toward one's partner, communication, conflict, commitment, intimacy, satisfaction of dating relationship, and feeling of inferiority toward one's partner. Third, contextual variables that affect doing and victimization of dating violence are familial relationships, friend relationships, and financial stresses.

• 대한임상약리학회:학술대회논문집
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• 대한임상약리학회 2001년도 제10차 추계학술대회
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• pp.24-25
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• 2001

• Journal of the Korean Wood Science and Technology
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• 제18권2호
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• pp.79-85
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• 1990

Traditional complex joints have used to a wide variety of wooden furniture construction. Dowel joint is the most popular joint s. However design of this joint to meet specified service condition has been hampered by a lack of proven design formulas which can be use to predict their strength. The object of this study is to investigate the withdrawal strength and effect of dowel diameters in wood and wood based materials. The obtained results were as follows; 1. The relationship between withdrawal strength and dowel diameter is found to be linear. 2. Withdrawal strength of medium density fiberboard and Sepetir in end-to-side joints is superior to Antiaris, particleboard and plywood. 3. In end-to-end joints, withdrawal strength of medium density fiberboard is the most superior joint. but Sepetir. Antiaris and plywood have similarly strength and particleboard is inferiority. 4. Withdrawal strength in end-to-end joints of Antiaris and plywood is higher than in end-ta-side joints. But in end-to-end joints of Sepetir. medium density fiberboard and particleboard is similarity in end-to-side joints.

• 대한족부족관절학회지
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• 제19권3호
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• pp.77-80
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• 2015

Acute Achilles tendon rupture is a frequent injury during sports and recreational activities. Treatments for Achilles tendon rupture have been controversial in recent decades. Traditionally the surgical treatment had benefit over nonsurgical treatment in terms of low rerupture rate and early functional restoration. Recently, nonsurgical treatment was found to show no statistically significant inferiority in re-rupture rate, functional outcome, and calf strength. Whereas, surgical treatment had some complications including adhesion, nerve injury, and infection. Nonsurgical treatment has been increasing due to functional rehabilitation with early weight bearing and restricted early motion. It focuses more attention on the course of caring for patients with deep discussion. There are open repair and minimally invasive repair in terms of surgical treatment. There are various techniques for minimally invasive repair of Achilles tendon, which has some advantages over the open repair. However, the optimal technique for minimally invasive repair has not been established. The number of suture strands is important regardless of suture technique.

• Journal of Nutrition and Health
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• 제2권1호
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• pp.9-17
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• 1969

For the purpose of finding out the differences between urban and rural primary school children aged from 7 to 12 in their physipue, 1146 (578 boys and 567 girls) urban children and 1378 (693 boys and 635 girls) rural children were obserbed by the author during 2 months period from September, 1968 to October, 1968. Following were the findings obtained from this study. 1. Physique In general, urban children showed superiority than rural children if their physique, There could be seen significant differences in their height, weight and chest-girth specially in the age group of 11 and 12. 2. Physique indices In the physique indices based on the height, the value of urban children showed superiority than rural children in relative weight but in relative chest-girth it was the other way around and there were no significant differences between these two groups in relative sitting height. The Kaup index showed higher value in urban children and the Vervaeck index in the rural children and there were no significant differences between these two groups in the Rohrer's index. 3. Comparing these figures with the Korean Standard Value, urban children showed superiority and rural children showed inferiority. Our children were inferior than the Japanese children in their physiques.

• 한국도서관정보학회지
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• 제37권3호
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• pp.325-356
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• 2006

이 연구는 최근 우리사회에 급격히 유입되고 있는 북한이탈주민이 겪고 있는 정보빈곤 문제와 그를 해소하는데 도움이 될 수 있는 정보서비스 방안을 모색하고자 하였다. 북한이탈주민들과의 심층면담과 설문조사를 분석 한 결과, 그들은 정보 리터러시의 결핍과 열악한 정보환경 등으로 인해 남한사회 정착과 적응에 필요한 정보를 제대로 입수하여 활용하지 못하는 정보빈곤을 경험하고 있음을 알 수 있었다. 북한이탈주민들의 정보빈곤을 해소하고 그들의 정보복지를 향상시키기 위해서는 현재의 정보지원체계를 수요자인 북한이탈주민 중심의 정보 서비스 체계로 전환하는 한편, 북한이탈주민들의 정보마인드와 정보활용능력을 향상시킬 수 있는 효율적 방안을 강구하도록 노력해야 할 것이다. 더불어 북한이탈주민들도 정보의 중요성에 대한 인식과 적극적인 정보추구를 통해 남한사회에 성공적으로 적응할 수 있도록 부단히 노력해야 할 것이다.