• 한국임상약학회지
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• 제9권2호
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• pp.119-126
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• 1999

The educational backgrounds and research interests of pharmacy educators in Korea were analyzed to investigate the possibility of migrating the pharmacy education system from basic science-oriented to pharmacy practice-oriented. There are 257 full-time faculty members and 190 part-time members in twenty pharmacy colleges in 1999. Most of the full-time professors are majoring in basic pharmacy areas focused on the drug itself. Thirty nine percent of full-time professors are specialized in the fields of Medicinal Chemistry, $20\%$ in Biochemistry, $19\%$ in Pharmaceutics, and $18\%$ in Pharmacology-Toxicology. Only $4\%$ are related to the Pharmacy Practice Field. When we consider only the educational backgrounds of the educators, $89\%$ of full-time professors are related to the subjects of Korean Pharmacists Licensure Examination. Changes in educator's inclination will lead to the changes in pharmacy education and the contents of the test. There will be at least 38 job-openings due to retirements within next five years, and this will lead to approximately $15\%$ changes of current full time professors in Korean pharmacy education. More full-time professors will be needed in the area of pharmacy practice in order to focus on the pharmacy practice-oriented pharmacy education. Many distinguished characteristics of pharmacy educators between the private schools and the national universities are also discussed in the paper.

• 대한건축학회논문집:구조계
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• 제35권11호
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• pp.163-170
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• 2019

Most of the current crack investigation work consists of visual inspection using simple measuring equipment such as crack scale. These methods involve the subjection of the inspector, which may lead to differences in the inspection results prepared by the inspector, and may lead to a large number of measurement errors. So, this study proposes an image-based crack detection method to enhance objectivity and efficiency of concrete crack investigation. In this study, YOLOv2 was used to determine the presence of cracks in the image information to ensure the speed and accuracy of detection for real-time analysis. In addition, we extracted shapes of cracks and calculated quantitatively, such as width and length using various image processing techniques. The results of this study will be used as a basis for the development of image-based facility defect diagnosis automation system.

• 국제학술발표논문집
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• The 8th International Conference on Construction Engineering and Project Management
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• pp.30-37
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• 2020

In the building construction, the steel-frame work occupies an important position in terms of structure, cost and quality. Especially in Japan, steel frames have traditionally been the main structure of many buildings. For steel-frame works in such positions, this paper investigates an existing steel fabricator to clarify the actual conditions of design decision making process and management method in steel production process. This study focuses on a steel fabricator (Company M in the following sentences), whose main market is Japan and which has facilities in Thailand, China, and Japan. Company M uses QR codes to control the production status of products, and exchanges all information between inside and outside the company via specialized departments in the form of documents. The authors have already analyzed the relationship between production lead time and defect rate based on actual project data at Architectural Institute of Japan in 2016. In 2019, we expressed the process from the confirmation of the design information of the current steel frame to the production by WBS, and clarified the relationship between the production lead time and steel frame product quality structurally. In this paper, the authors reoport the progress of the survey conducted so far, the positioning of the collected data, and the future survey policy.

• 한국정보전자통신기술학회논문지
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• 제4권4호
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• pp.258-263
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• 2011

본 논문에서는 추적식 태양광 발전 시스템을 위한 고품위 축전지 충방전 컨트롤러를 설계하였다. 제안하는 컨트롤러는 태양광 발전시스템에 일반적으로 사용하는 납산축전지(연축전지)뿐만 아니라 향후 개발되어 신 재생에너지 발전 시스템에 사용될 다양한 배터리를 충전하는데 적합하도록 미세 전류조절기능을 갖춘 새로운 기능을 갖는 컨트롤러이다. 사용자 편의성을 높이기 위하여 LCD 표시기의 기능을 보강하였으며 CAD를 이용한 최적설계를 통하여 대기 전력의 최소화를 구현하였다.

• 한국건설관리학회논문집
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• 제7권1호
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• pp.110-118
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• 2006

현행 일괄입찰방식은 분담이행방식의 공동도급형태로 운영되고 있어, 참여업체간의 의사소통 부족으로 설계기술과 시공기술의 접목이라는 일괄입찰방식 본래의 취지를 살리지 못하고 있다. 또한 입찰을 통해 확정된 총액금액으로 설계가 진행되므로 실시설계단계에서 VE활동을 통한 원가절감 노력이 거의 이루어지지 않고 있는 실정이다. 이에 본 연구에서는 현행 설계시공일괄방식의 특성을 파악하고 설계VE 적용사례를 분석하여, 설계VE 적용의 문제점이 무엇인지를 파악한 후, 일괄입찰사업 수행절차에서 설계VE 적용의 효과를 극대화할 수 있는 파트너링의 활용방법 및 그 적용시기를 제안한다.

• 한국주거학회논문집
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• 제19권2호
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• pp.1-10
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• 2008

The purpose of this research is to compare residents' movement and activities in SH apartment in Yangcheon-Gu, Seoul (SH apartment) and PHA apartment in St. Paul, Minnesota (PHA apartment) in order to improve the quality of rental housing environment. This study had surveyed 418 residents of SH apartments in Korea and used the secondary data gathered from 1,462 residents of PHA apartments in the United States. The results of this study are as follows: The criteria of Korean residents in SH apartments when choosing their residences are lower rent payment and shorter waiting time. They seemed to have no other options than public rental housing. On the contrary, American residents in PHA apartment had more option to choose from. Therefore, Korea needs to offer more variety types of residents that can be lead to better satisfaction of low income classes. Most of the SH apartments residents has lived for long-term, in the average of more than 6 years, and wanted to live continually at their current dwelling. PHA residents showed similar tendency. However, long term residency may lead to permanent occupation of the public rental apartment by the same family. Hence, a system which can provide equal residency opportunities to all low-income classes need to be developed. Residents of SH apartment were satisfied with the personal activities but were not satisfied with group activities among residents or regarding resident meetings. However, residents of PHA apartments were more satisfied with their management because there is more in-housing-complex activity programs. Therefore, more activity program for a resident should be developed after analysing programs of different apartments and current conditions in Korea. There were some noticeable divergences among residents, based on their age, term of residence and physical, emotional and mental problem, when evaluating in-housing-complex's programs. Thus, these factors are also need to be considered when planning and examining evaluation about the management of rental apartments.

• 한국전기전자재료학회논문지
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• 제35권1호
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• pp.72-79
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• 2022

Piezoelectric energy harvesting technologies, which can be used to convert the electricity from the mechanical energy, have been developed in order to assist or power the wearable electronics. To realize non-toxic and biocompatible electronics, the lead-free (Ba_0.85Ca_0.15)(Ti_0.90Zr_0.10)O₃ (BCTZ) nanoparticles (NPs) are being studied with a great attention as flexible energy harvesting device. Herein, piezoelectric hybrid nanocomposites were fabricated using BCTZ NPs-embedded poly(vinylidene fluoride-trifluoroethylene) [P(VDF-TrFE)] matrix to improve the performance of flexible energy harvester. Output performance of the fabricated energy device was investigated by the well-optimized measurement system during the periodically bending and releasing motions. The generated open-circuit voltage and the short-circuit current of the piezoelectric hybrid nanocomposite-based energy harvester reached up to ~15 V and ~1.1 ㎂, respectively; moreover, the instantaneous power of 3.5 ㎼ is determined from load voltage and current at the external load of 20 MΩ. This research is expected to cultivate a new approach to high-performance wearable self-powering electronics.

• 한국산학기술학회논문지
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• 제19권3호
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• pp.553-556
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• 2018

본 연구는 실제 산업현장에서 활용 가능한 'NCS를 활용한 사업 내 자격 신설 정비 매뉴얼'을 개발하여, 기업특수 숙련기술에 대한 육성 평가를 담당하는 사업 내 자격 운영을 체계화 시킬 수 있는 기준 마련이 필요하고 사업체별 특수 직무를 다루고 있는 사업 내 자격이 기업의 숙련요구를 정확히 반영함과 동시에 각 사업 내 자격의 기준과 절차를 표준화할 수 있는 매뉴얼 개발을 통한 신뢰성 및 객관성 제고하고자 하는데 그 목적이 있다. 연구의 목적을 달성하기 위하여 일본의 사업 내 자격을 운영하고 있는 기업 및 협회 등을 방문하여 해외사례분석을 하여 구체적인 현행제도 및 사례분석을 통한 개선방향과 사업 내 자격을 인정받고 현재 검정을 시행하고 있는 기관 실무자들을 대상으로 온라인 및 1:1 면접조사를 통하여 설문을 실시했으며, 사업 내 자격의 체계 및 내용에 대한 현황분석을 통하여 NCS와 사업 내 자격의 체계 분석 및 자격 신설 정비 모형을 도출하여 NCS를 활용한 사업 내 자격 신설 정비 표준매뉴얼을 개발하여 이 표준매뉴얼의 사용 촉진을 위하여 현행제도 및 사례분석을 통한 개선방향 제시하였다. 이러한 결과를 토대로 NCS 기반 사업 내 자격 신설 매뉴얼과 NCS 기반 사업 내 자격 정비 매뉴얼을 제시하였다.

• 대한전기학회논문지:전기물성ㆍ응용부문C
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• 제52권12호
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• pp.562-567
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• 2003

Lightning arresters are deteriorated by repetition of protective operation against overvoltages or impulse currents in environments of its use. If a deteriorated arrester is left in power lines, it can lead to an accident such as a line to ground fault even in a normal system. Therefore, it is necessary to eliminate the deteriorated arrester in advance by checking the soundness of arresters on a regular basis, and to ensure the reliability of power systems by preventing accidents. Various deterioration diagnostic techniques and devices are suggested, and most of which measure leakage current components as an indicator of arrester ageing. However, the techniques based on the magnitude of leakage current measure simply RMS or peak value of leakage current components and do not provide detailed information needed in the diagnosis. In this study, we found that the wave height distributions of the total leakage currents are remarkably changed or a new wave height are produced with the progress of arrester deterioration. To propose a new technique for the diagnosis, we designed a leakage current detection unit and an analysis program which can measure leakage current magnitudes and analyze wave height distributions. From the experimental results, we confirmed that the proposed technique by analyzing the wave height distribution can simply diagnose the mode of defects such as a partial damage and an existence of punctures in arresters as well as deterioration of arresters.

• 농업과학연구
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• 제26권1호
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• pp.84-99
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• 1999

In China, primary purpose of policy concerning land tenure system was to maintain social homogeneity among people and growth of productivity. Even before reformed by Deng Shao Ping's government, left wing who had placed more importance on the social unity. When they gained political power, pressing against market oriented agricultural policy for the collective farming system. However right wing prefered to adopt the productivity oriented policy, which might lead to individualized farming system at the cost of social unity. Since Chinese government following principles of social economy put more weight on social unities rather than productivity growth, farming system and rural community became developed into homogeneous structure across the nation before Deng Shao Ping's reform. Process for People's Commune, followed by first and then second level coperations starting from group farming so called Hozozo, was historical reflection of developing such land tenure system. However, even under People's Commune, farmers' efforts could be found to increase their own productivity along with emerged private farming, in which Posandoho with week private farming system was gradually developed into Pogandoho. As Deng's government encouraged farmers to increase productivity through the market oriented measure, there had been wide spread of Pogandoho among the farmers even before legal desolution of Peoples' Commune was realized.