The goal of this study is to analyze an effect of productivity elevation. For the goal, the various methods of the productivity elevation were suggested and the system improvements were conducted. The S company was established in Ban-Wol Industrial Complex, Ansan-City, Kyonggi-Do on 2007. The company was hiring 22 employees. The main manufactures were heavy duty equipment parts and the amount of sale was two billion won on 2008. Problems which the company faced were ambiguous production target management and materials loss. To solve the problems, NCT work improvement and automatic welding were induced. There were steel saving of 3,780,000won/month and man-hour saving of 144,000won/month by redesign of the steel sheet for the NCT steel job. Also, changing from handwork to automatic welding, the man-hour saving for the welding job was 320M/H and saving of 4,225,600won/month. The others of systematic improvement for productivity elevation were usage of jig and daily equipment checklist.

This study was conducted to establish a method to analyze azodicarbonamide (ADA) in wheat flour. A new method using high performance liquid chromatography (HPLC) was developed for the determination of ADA in wheat flour. The recovery rate was 91.93~97.54%. The limit of detection for ADA was 0.02 mg/kg and the limit of quantification was 0.05 mg/kg. The monitoring results for ADA contents using the established methods showed that it was detected as the low value of 0.95 mg/kg in one of 51 flour samples (detection rate : 2%), but not detected in 59 bakery samples. The detected ADA level was suitable to its usage standard, compared to the standard (45 mg/kg). Although the detection rate was very low, the established analytical method of ADA will contribute to the management of ADA in processed foods such as wheat flour and bakery.

우리나라 토양으로부터 분리된 (주와 김 2009) poly (butylene succinate-co-butylene adipate; PBSA) 분해균 Burkholderia cepacia PBSA-7, Bacillus licheniformis PBSA-8 및 Burkholderia sp. PBSA-9에서 PBSA 분해효소를 암호화하는 유전자를 분석하였다. PCR을 수행하여 B.cepacia PBSA-7과 Burkholderia sp. PBSA-9는 약

목적: 근시발생 시점에 따른 굴절이상도와 안광학상수의 차이를 분석하여 근시 발생의 요인을 알아보고, 1년간의 변화를 분석하여 각 그룹의 근시진행 원인을 알아보고자 한다. 방법: 2008년 3월과 2009년 3월 2회에 걸쳐 76명(남 23명, 여 53명)을 대상으로 기본신체검사, 자동굴절검사, 각막곡률반경, 전방깊이, 안축장을 조절마비 상태에서 측정하고 등가구면 굴절이상도가 -0.50D 이상인 피검자(46명, 92안)를 대상으로 안경이나 콘택트렌즈로 교정한 시기에 따라 조기발생 근시군과 만기발생 근시군으로 구분하였다. 결과: 조기발생 근시군의 등가구면 굴절이상도는 -4.25±2.05D로 만기발생 근시군의 -2.63±1.69D보다 근시도가 컸으며 안축길이도 조기발생 근시군이 25.464±1.059 mm로 만기발생 근시군의 24.850±0.867mm보다 더 길었다. 1년간의 등가구면 굴절이상도 변화는 조기발생 근시군이 -0.08±0.28D, 만기발생 근시군이 -0.32±0.36D로 만기발생 근시군에서 근시도가 더 증가하였다. 조기발생 근시군에서 등가구면 굴절이상도 변화와 각막곡률반경 사이에는 양의 상관성(r=0.627, p=0.000)이 있었고 AL/CR비 변화와는 음의 상관성(r=0.487, p=0.000)이 있었다. 만기발생 근시군의 등가구면 굴절이상도 변화와 각막곡률반경 사이에는 양의 상관성을(r=0.651, p=0.000), AL/CR비 사이에는 음의 상관성을 보였다(r=0.710, p=0.000). 결론: 이상으로부터 근시발생 시점이 빠를수록 안축길이가 더 길었으며 근시도가 더 큰 것으로 나타났다. 근시도 증가는 조기발생 근시군에 비해 만기발생 근시군에서 더 크게 나타났다.

Since the 1970's, UNESCO and ICOMOS have adopted or emphasized on the principles of historic preservation. One of them is what to require a repair should not be repaired beyond the limits of the features and techniques which had been adopted in those days of establishment. On the premise, this paper is to examine the materials and technique of wall plaster work in the government building constructions in the Joseon dynasty. The result of this examination shall come up with a basic conformity in the case of repairing the building established in the late of Joseon dynasty. This paper is carried out for the proper repair and restoration of architectural cultural properties. Construction reports and other documents in those days are examined for the study. Following conclusions have been reached through the study. The materials and technique which applied to wall plaster work in those days were quite different from the present. The technique that was used to wall plaster of government buildings in those days was not a lime wall plaster, but sand coat one. The kinds of material for setting of the sand coat wall plaster had been revised with the change of the times or constructions. The main kinds of material were composed of sand, white clay, paper fiber, and cereal starch. However, the present materials were composed of sand, white clay. Therefore, the present materials and technique which applied to wall plaster work for the repair and restoration of architectural cultural properties have to be revised and corrected.

최근에 폭설로 인한 온실의 붕괴가 빈번해져서 농가의 피해가 증가되고 있다. 히지만 폭설로 인한 온실의 붕괴를 막기 위한 정확한 구조해석에 대한 연구가 미약하여 매년 농가의 피해는 되풀이 되고 있다. 기존 온실의 구조해석 방법은 미소변위에 기초한 선형탄성해석으로 이루어지고 있다. 그러나 실제 온실의 강성은 건축 구조물의 강성에 비해 상당히 약하지만 하중은 폭설에 의해 상대적으로 크게 작용하여 변형이 크게 발생하고 구조물의 기하학적 형태가 변하므로 변형률-변위 관계가 비선형 거동을 한다. 본 연구에서는 폭설에 따른 온실의 붕괴를 막기 위하여 농가에서 많이 사용되는 농가 지도형 G형 단동온실과 농가보급형인 1-2W 기본형 연동온실에 대해 시간에 따른 하중단계별 기하학적 비선형 효과를 고려하여 온실의 정확한 거동분석과 구조적 안전성을 평가하는데 대변위해석 방법을 제시하고자한다.

Beef traceability, a system that provides all the records of beef production, helps customers purchase that they get to know detailed information of the Hanwoo beef. This study was carried out to investigate the DNA identity possibility in various cooking methods to ripen meat (soy sauce, gochujang sauce, 10% vinegar, 10% coke, 10% Cheongha, 10% Soju, raw, dried, and decayed) for beef traceability. The DNA content of decayed beef was higher than those of other cooking methods. It is thought that result of mixed pollutant, it did not affect amplified DNA allele height because of bovine specific microsatellite (MS) markers. The ripened sample in 10% vinegar 3 days was lowest a mount of extracted DNA (156 ng) and amplified DNA allele height (based on the raw samples to 38%) by MS markers compared with the other cooking methods. There are no significant correlation between amplified DNA allele height and the amount of extracted DNA. Therefore, beef DNA identity test in various cooking methods to ripen meat can used by bovine specific MS markers. Beef traceability system by DNA identify test will give more confidence in food safety to customers

This study tried to focus on nontraditional job that has not been studied in terms of the subjects associated with MSDs(Musculoskeletal Disorders). Specifically, dental procedure was the job to be analyzed in this study. An alternative method as well as a traditional method for viewing teeth while performing simulated dental procedures. Four graduated students did both methods(direct view and indirect view) as the subjects in this study. The method based on indirect view used a video camera and monitor to view the teeth. The experiment was conducted five times for each subject. The major findings in this study were as follows; 1) Job speed was increased with the repetitions for both methods, 2) Difference of Neck flexion between direct and indirect methods was statistically siginificant(Neck flexion for indirect method was dramatically decreased), 3) Difference of job speed between direct and indirect methods was statistically significant(Job speed for direct method was faster than that of indirect method), 4) Difference of error rate between direct and indirect methods was statistically significant(error rate for direct method was lower than that of indirect method), 5) Even though indirect method did not provide better performance in terms of job speed and error rate yet, it seemed to need a trade-off between two methods in the future since indirect method provided better working postures than that of direct method.

Kart-Racing which is called a microcosm of F1`s racing is the most basic step in the car racing. A Kart consisting of the very fundamental structure which does not include differential gear and suspension is sampler than a typical car. It is necessary to reduce the Lab time at the Kart-racing`s corner so the research investigate the Kart through check of racing condition and of driving factors about cornering. The study measured to make the kart closely factual condition which was showed the main parameters for more actual decision of kart`s dynamic characteristics and estimated the real-time data from the developed kart whose sensor was installed at all tires and which was pursued through the GPS.

In this paper, the situation of energy efficiency standards and MEPS (Minimum Energy Performance Standard) for motors and diffusion states are analyzed. For this purpose, a new methodology is used, which was proposed in the existing study, using diffusion models and learning curves. The existing diffusion models could not explain affects from new appliances' penetration during the diffusion. But a mixed diffusion model with learning curves or learning ratio is studied to explain this penetration.

본 연구는 자연산책로 이용자에게 많은 교육적 경험을 제공하며 만족도를 향상시키고 효율적으로 유지 관리하기 위해 필요한 데이터 수집을 목적으로 진행되었다.이용자들은 자연산책로의 조성 목적인 자연관찰, 학습과는 다른 등산이나 산책을 목적으로 이용하고 있었으며 원적계곡구간과 벽련암 구간은 울창한 수림과 자연경관 감상으로 매력도가 높게 나타났으며 또한 다른 구간에 비하여 상대적으로급한 경사도로 이용이 힘든 구간으로도 분석되었다.관찰대상, 생태해설판, 자연관찰로 특성을 독립변수로 하는 다중회귀분석법을 실시하여 방문객의 만족도에 영향을 미치는가장 효과적인 요인을 파악한 결과 생태해설판이 영향력 높은 요인으로 파악되어 방문객의 종합만족도를 강화하기 위해서는생태해설판을 우선적으로 개선할 필요가 있을 것이다.

This study collected 217 cases of court ruling statements for the cases over which administrative litigations were made regarding the acknowledgment of cerebral and cardiovascular diseases arising out of duty against Korea Labor Welfare Corporation and analyzed the factors of occurrence of cerebral hemorrhage and infarction and the Court cases of cancelation and dismissal of the litigation. As a result, due to seasonal factors, cerebral hemorrhage occurred more in the winter while cerebral infarction, in spring. The incidences for each age group were the higest in people in their 40s for cerebral hemorrhage while in those in their 50s for cerebral infarction, it turned that the incidence inside the places of business was the highest. The average days from application for care and family benefits until the confirmation of the case was 31 months on average for 34 canceled cases while 23 months for 183 dismissed ones, and the average number of months working until the occurrence of accident was 80.8 months for the 34 canceled cases while 77.6 for the 183 dismissed ones. This study has a significance in that it analyzed leading cases of confirmed administrative litigations in some cases applied for diseases due to occupational cases after the occurrence of cerebral and cardiovascular diseases but not approved, through which it is expected to be used as the basic data to reduce time and economic loss generated by the litigations to judge the acknowledgment of diseases due to occupational cases.

내장산 국립공원 탐방객의 반달리즘을 분석함으로써 탐방객 관리를 통한 공원의 효율적 관리방안을 수립하는데 필요한 기초 자료를 도출하기 위하여 실시하였다. 설문조사는 2005년 10월 1일부터 5일까지 이루어졌으며 분석에 사용된 설문지수는총 512매(탐방객 488매, 관리자 24매)이다. 내장산 국립공원의 환경훼손에 대한 인식 조사에서 탐방객과 관리자 집단 모두버려진 쓰레기가 가장 큰 문제라고 답했다. 탐방객의 14.3%가 반달리즘을 행하였으며 유형별로 보면 자연훼손이 가장 많았다.방문목적별로 보면 자연․문화적 동기보다 사회적 동기요인에 의해 방문한 탐방객의 훼손행위가 더 많은 것으로 나타났다.관리자의 반달리즘 평가 결과 쓰레기 투기가 가장 심각한 것으로 파악되었다. 탐방객의 쓰레기 발생비율은 73.2%이며 쓰레기를발생하는 탐방객 중 58.3%는 되가져오고 37.2%는 공원 내 쓰레기통에, 4.5%는 쓰레기통이 아닌 곳에 버린 것으로 나타났으며탐방객이 쓰레기통 이외의 장소에 버리는 쓰레기의 종류별 빈도를 보면 비닐봉지나 PET병 등의 플라스틱류가 가장 많았고그 다음이 음식물 쓰레기였다.

The Consultation about Energy Use Plan is prescribed by the Rational Energy Utilization Act. This paper proposes a regression model for estimating consultation objects each year. Analysis results predict for the next six years that the mean annual energy saving effect is 13.2%, mean annual CO2 reduction effect is 13.4% and benefit-cost ratio is 2.48, it means economic and social future effect with the Consultation about Energy Use Plan are very excellent. Also the effect of introducing system improving efficiency of energy use is expected to account for 62%, recovering waste heat account for 17%, introducing group energy supply account for 18% and utilizing new․renewable energy system account for nearly 3% of total energy savings on plan for improving efficiency.

In this study, the analysis of meat quality grade was carried out on the DNA identity test samples of 452 Hanwoo (Korean cattle) raised in Gyeongnam region in the year 2009. Appearance rate of above 1st grade from cow (70%) and steer (93.16%) showed high quality grade. On the other hand, there were the difference between this study and slaughtered Hanwoo in Gyeongnam in the year 2009 - appearance rate of above 1st grade from cow (58.77%) and steer (82.99%). It expect considered influence of the samples for beef DNA identity test that collected mainly high quality meat. Quality grade by registry classification about collected samples showed correlation between pedigree classification and quality grade that appearance rate of above 1st grade highly observed pedigree registry more than advanced registry, advanced registry than fundamental registry. Although limited to DNA identity test samples, KPN (Korean Proven Bull's Number) 452 and KPN 407 was preferred for breeding in Gyeongnam. Also average appearance rate of above 1st grade in offsprings of the top 10 Korean Proven Bulls used mating is 95.35%. It means that Korean Proven Bulls influence meat quality of offsprings positively. Thus, this analysis is expected to be a base data for the improvement of meat quality of Hanwoo raised in Gyeongnam region.

In this study, genotyping was executed by using 11 microsatellite markers (BM1824, BM2113, ETH10, ETH225, ETH3, INRA23, SPS115, TGLA122, TGLA227, TGLA53, and TGLA126) for diversity of 214 Hanwoo cows in Hoengseong area. Each marker's size and number of allele, observed heterozygosity, expected total heterozygosity, and polymorphism information content were analyzed by 11 Microsatellite marker. The average of size range was detected from 150.9 to 174.9 in Hanwoo cows of Hoengseong. The number of average allele was 10.0 that is similar to the average of Kangwon Hanwoo, which is known as 10.5 in the previous report. The average were 0.751 for observed heterozygosity, 0.760 for expected total heterozygosity, 0.725 for polymorphism information content, respectively. These results were similar to previous studies in Kangwon Hanwoo, National Hanwoo and Korean Proven Bulls. This study is expected to contribute for genetic improvement of Hanwoo cows in Hoengseong as a popular brand.

목적 : 본 연구는 국내 작업치료사의 직무특성을 조사하고, 직무분석을 통해 업무를 수행하는데 필요한 영역, 작업, 지식, 기술의 중요도와 수행 빈도를 조사하여 직무의 우선순위를 파악하고, 영역의 비중 산정을 통하여 학교교육과 임상실습, 국가면허시험에 기초자료를 제공하기 위하여 실시하였다. 연구 방법 : 연구대상은 대한작업치료사협회에 등록된 회원을 대상으로 2008년 12월부터 4개월간 실시하였으며 93개 기관의 345명의 설문결과를 분석하였다. 설문구성은 직무특성조사를 위해 임상실습, 근무기관, 치료대상자 의 진단명 등을 포함하였고, 직무분석은 미국 작업치료사 직무분석을 기초로 설문을 구성하여 직무의 중요도와 빈 도를 구하였다. 결과 : 본 연구를 통하여 교과과정동안 작업치료 실습은 대학병원에 가장 많이 이루어지고 있으며, 임상실습 대상은 지체장애가 가장 많은 것으로 조사되었다. 현재 작업치료사들은 재활병원에 가장 많이 근무하며, 치료대상자는 신 경학적인 분류의 장애를 가진 자가 가장 많은 것으로 조사되었다. 작업치료사의 네 가지 직무 영역의 우선순위는 “전문가로서의의무와책임”,“ 중재”,“ 평가”,“ 중재계획”순이었다. 미국작업치료사국가시험비중산정방식을이 용하여작업치료영역의비중을계산한결과“평가”12.2%,“ 중재계획”24.7%,“ 중재”33.6%,“ 전문가로서의의 무와 책임”29.6% 이었다. 결론 : 이 연구의 결과를 토대로 한국형 작업치료적용모델을 정립하고, 작업치료 교육 및 국가면허시험의 중요한 기 초자료로 활용할 수 있을 것이다. 또한 앞으로 지속적인 연구를 통해 보건복지 및 사회∙문화∙경제적 흐름에 따 라 변화하는 작업치료사의 직무를 주기적으로 분석하는 일은 매우 중요할 것이다.