• 대한미세수술학회:학술대회논문집
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• 1997.10a
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• pp.125.2-125.2
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• 1997

• Journal of dental hygiene science
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• v.8 no.2
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• pp.51-56
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• 2008

This research surveyed, from 17 March 2008 to 25 March 2008, 261 students, 1,2,3 grade, who study in the a dental laboratory technology of college placed in Suwon. We sent them out each three questionnaire and surveyed their family and friends including themselves. We got back 584 paper out of 783 paper which we sent out and used as data of analysis. When choosing a dental clinic, we used a Pearson Correlation to understand a relation of variables connected with a medical service. The result showed that every each fields have a positive correlation and especially a correlation between a physical environment and an ability of dentist is showed most highly and a correlation between a basic element of clinic and a traffic convenience is showed a meaningful positive in that order.

• The Journal of the Korean bone and joint tumor society
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• v.10 no.1
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• pp.22-28
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• 2004

We retrospectively reviewed the cases of peroneal nerve palsy in seven patients after musculoskeletal tumor resection. Their mean age was 38 years. Three had osteosarcoma in proximal fibula, 2 had chondrosarcoma in proximal fibula and calf and 2 had malignant fibrous histio cytoma in calf. Four of 7 patients had been managed using active dorsiflexion brace. Three patients who underwent tibialis posterior transfer and could walk without brace were able to discontinue the use of the orthosis. Peroneal nerve palsy after wide excision of tumor including peroneal nerve can not resolve spontaneously and results in severe functional disability. To improve the gait function, active surgical treatment should be considered.

• The Korean Journal of Soil Zoology
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• v.5 no.2
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• pp.71-83
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• 2000

Mylonchulus jinjuensis n. sp. is 1.8-2.2 mm long, spicules 58-$67{\mu}textrm{m}$ long and is distinguishable by basally situated subventral teeth, presence of hypodermal glands and ventural body pores. Mylonchulus taeguensis n. sp. is 1.3-1.8 mm long, spicules 52-$64{\mu}textrm{m}$ long and is characterized by having small denticle on dorsal wall of buccal cavity at the level of dorsal tooth apex, and two each pre- and post-vulval papillae. Mylonchulus polynicus is reported here for the first time from Korea, is described and illustrated. Princhulus pachydermis n. sp. is 2-2.3 mm long and is distinctive in having very thick body cuticle and absence of caudal glands and spinneret. Prionchulus koriensis n. sp. is 1.7-2.0 mm long and is characterized by having elongate-conoid tail with sharply pointed terminus and presence of caudal glands.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.31 no.2A
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• pp.194-200
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• 2006

A 26.4 GHz phase locked oscillator(PLO) for communication satellite transponder is developed. The PLO consists of fundamental frequency generation module(FFGM) and frequency multiplication part(FMP). The signal of 26.4 GHz is generated through frequency tripling process of 8.8 GHz fundamental frequency. Phase locking technique using sampling phase detector(SPD) is adopted to design the FFGM. The MMIC tripler and amplifier are also designed for the reduction of the size and mass of FMP. The phase noise characteristics are exhibited as -96 dBc/Hz at 10 tHz offset frequency and -105 dBc/Hz at 100 kHz offset frequency, respectively, with the output power over 11 dBm. All performance parameters are complied with the design requirements.

• Journal of Digital Convergence
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• v.12 no.3
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• pp.317-323
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• 2014

This research has a purpose of providing base data to prevent musculoskeletal disorders, by analyzing the changes in muscle body due to sling exercises, of the industrial laborers with work-related musculoskeletal disorders. The subjects of this research are 20 volunteers who applied for musculoskeletal treatment exercises in hospitals, from region D industry H. 10 of the 20 subjects were involved in sling exercise program for 12 weeks, and the other 10 subjects were ordered to retain their common practices. We have used the statistics software SPSS ver.18.0 to analyze the data, and have offered a descriptive analysis of the measured variables. To discover the sling exercise effects, we have executed a t-test (paired sample t-test) comparing the before-after relationship of 12-week sling exercise program, and the level of significance were set to a=.05. With these set of research methods and procedures, we have concluded the following. As a result, we have concluded that 12-week sling exercise program does exert influence in changing muscle body of work-related musculoskeletal patients.

• The Korean Journal of Pesticide Science
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• v.16 no.4
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• pp.282-287
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• 2012

This study was carried out to clarify the effects of the application of pesticide by different spray nozzle types on pesticide residues. The average droplet size and discharge rate were investigated when the manual compressed sprayer with two head disk type nozzle and the knapsack engine powered sprayer with two head fan shape nozzles were used. The fan type nozzles were classified into three types by the number of orifice in the nozzle. Three type nozzles tested were fan with one orifice, fan with two orifices and fan with three orifices. Fan (trade name : D-3) with 2.4 L/min. of the discharge rate and $76{\mu}m$ of the average droplet size while maintaining constant pressure $1.1{\pm}0.2$ MPa, and fan D-35 with 2.6 L/min. and $90{\mu}m$ while maintaining constant pressure $1.0{\pm}0.2$ MPa were appropriate. The orifice size of D-3 was 0.65 mm length ${\times}$ 0.45 mm width and the orifice size of D-35 was 0.62 mm length ${\times}$ 0.46 mm width. The residue levels of imidacloprid on perilla leaves among four applications by four different nozzles show significantly difference with 5% significance level. The residue levels $3.76{\sim}3.92mg\;kg^{-1}$ by fan or disk type is smaller than $4.52{\sim}4.92mg\;kg^{-1}$ by fan II or fan III. The residue levels of imidacloprid on perilla leaf were different depend on the spray nozzles type.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2010.04a
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• pp.455-458
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• 2010

동화(燈火)를 사용한 항로표지 중에서 암초나 얕은 곳의 위치를 표시하는데 설치되는 등표의 설계시 해상에 설치되는 현장여건상 전문설계용역사에 의존하여 설계용역을 실시하고 있는 실정이다. 설계파고가 작고 암초의 형상이 넓은 노 간출암인 경우에는 기존 설계 완료된 등표를 적용하여 시공하였을 경우 많은 국가예산이 절감될 것으로 판단된다. 등표설계에 가장 영향을 주는 설계파고는 전국 연안의 설계파고도 작성용역을 실시하여 배부하고 설계파고에 따른 구조물 형상을 절정하기 위하여 표준형 등표 안정성 계산 프로그램을 개발하여 현장여건에 맞는 표준형 등표를 제안함으로서 현장여건이 양호 한 곳은 표준형 등표에서 제안하고 있은 표준형 등표를 적용함으로서 현장별 투입되는 설계용역 예산을 절감하고 설계용역 미 시행에 따른 사업기간을 단축할 수 있는 효과가 기대된다.

• 월간낙농육우
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• v.25 no.12 s.284
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• pp.123-147
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• 2005

우리협회에서는 지난 3월 '깨끗한 목장 가꾸기 운동' 선포식을 개최한 이래 동 운동의 성공적인 추진을 위해 해외사례조사, 연구용역 등을 통해 실무적인 준비를 추진해 왔습니다. '깨끗한 목장 가꾸기 운동'은 기본적으로 목장 환경개선에서부터, 크게는 지역 경종농업과 연계한 자원순환형 농업, 지역민과의 교류활동(우유소비홍보활동 등)까지 농가 지도와 사례 발굴 등을 통해 토지이용형 농업인 낙농산업의 이미지 제고와 우유소비 확대를 위해 추진코자 합니다. 2005년도에는 캠페인 중심으로 추진되어 왔으며, 2006년도에는 우수사례 발굴 등을 통해 전 낙농가로의 운동 확산을 추진목표로 삼고 있습니다. 금번 연구용역은 깨끗한 목장 가꾸기 운동 추진을 위한 농가의 지침서로 활용키 위해 협회에서 강원대 성경일 교수에게 의뢰한 것으로서, 앞으로 연구결과를 바탕으로 소책자를 제작, 농가에 배부할 계획이며, 그중 일부 내용을 발췌하여 본지에 게재하였습니다.

• Proceedings of the Safety Management and Science Conference
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• 2001.05a
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• pp.1-6
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• 2001

IMF이후 건설 물량은 감소하고 있는 경향이나 재해율은 그다지 감소하지 않고 있고 여전히 중대재해는 계속 발생하고 있는 추세이며, 건설업체에서는 안전관리에 대한 비용을 더욱 아끼려 하고 있어 비용절감을 위해 재해예방을 위한 안전시설 비용이나 안전활동 비용을 투자하지 않고 있다. 따라서, 본 연구는 노동부에서 현재 시행하고 있는 건설현상 페트롤점검의 실태를 조사ㆍ분석하여 문제점을 도출하고 효율적 운영방안을 제시하는 것으로 하였다. 현행 페트롤점검의 실태조사를 위하여 페트롤점검의 관계담당자인 전국의 노동부 지방노동관서 근로감독관, 한국산업안전의 각 지역본부 및 지도원 기술직원, 페트롤점검 대상 건설현장 관계자에게 각각 설문조사지를 배부하여 실태를 조사하고 분석하였으며, 또한 노동부의 최근년도인 1999년, 2000년도의 재해발생통계 및 페트롤점검 실적자료, 대한건설협회의 최근 년도별 건설공사 수주금액, 공사규모별 현황 및 외곽의 건설현장 페트롤점검사례를 수집하고 분석하였다. 이러한 실태조사 등 수집된 자료분석 및 각종 참고문헌 연구를 통하여 4가지 문제점을 도출하였으며 각 도출된 문제점에 대하여 효율적인 개선대책을 제시하였다.