• Journal of architectural history
• /
• v.19 no.6
• /
• pp.173-186
• /
• 2010

This article is about the study on construction contractors in Daegu during the Japanese Colonial Rule. The first construction contractors who involved with Kyong-bu railroad work in 1904 personally. But, after they go through the bidding method, changed by the Japanese Government General of Korea in 1922, and the second bid rigging in 1932, contractors was changed gradually the organization into unlimited partnership, limited partnership or stock corporation. The number of them was increased. Most contractors were Japanese, and organized a limited partnership which has been capitalized at 30,000 won. On the other hand, Korean contractors couldn't work at an important part, except for the personal activities of Youngsil Lee(李永實). They were usually employed as consultants or field deputies by Japanese contractors. After the Liberation, Japanese construction contractors returned to Japan, however Tatuoka-kumi(龍岡組), Yasiro-kumi(屋代組) and Sakano-kumi(坂野組) that was leading the business which were took over by Koreans. They were leading architecture field in Daegu.

• Journal of Radiation Protection and Research
• /
• v.30 no.1
• /
• pp.31-34
• /
• 2005

The article is devoted to the study of some hi-and tricyclic derivatives of aziridine as materials lot newindicators of ionizing radiation. To create high sensitive materials some aspects of photo induced ring opening processes in aziridine derivatives in ethanol solutions and in polymeric matrix were studied and two steps character of the processes investigated was established. Two types of radioindicators were suggested and preliminary tested. The new way of synthesis of radiochromic derivatives of aziridine was developed and series of target compounds synthesized.

• Journal of The Korean Association For Science Education
• /
• v.16 no.4
• /
• pp.417-428
• /
• 1996

The purposes of this study were to investigate what kinds of idea the children have after formal instruction in school, and to investigate what is the children's conceptual change on electric current after implementation of drill and practice type CAI program about electric circuit. The CAI program was developed by KEDI research project team the author of this article was joined. The subjects were 20 eleven yaers old(elementary fifth year) children sampled from a elementary school in Seoul, Korea. They had already learnt about electric circuits for two years before implementing this CAI program according to the formal science curriculum. The pretest were accomplished before implementing the CAI program, and posttest were accomplished a week after implementation of the CAI program. The results of this study are as follows: Even though they had studied electric circuits, only 5% of the students had scientific ideas before pretest, and even after drill and practice type CAI program only 30% of the students have changed their misconceptions into scientific conceptions.

• Journal of the Korean Professional Engineers Association
• /
• v.30 no.2
• /
• pp.20-35
• /
• 1997

At present Internet, a huge network connecting many computers in the world, has become a major boom to business. It seems to change not only telecommunications, but also changes the business world. It was utilized by a maximum of about 1,000,000 at the end of the 1980's. This figure has increased dramatically to approximately 40,000,000 at present. This enormous increase has been from two reasons. One is that an open door for businesses begun in 1990. This fact called to account a new interest of many enterprises looking to expand their business through Internet. Prior to that Internet was confined to academic utilization and not used for business purposes. The other reson is that a method was developed where desired information could be easily searched. This article describes the fundamentals of Internet so that one should know the history of Internet and the connection method to use it in practice in Korea. The splendor of Internet cannot be understood until it is tested In practice. The readers are strongly urged to participate in the Internet.

• Journal of Pharmaceutical Investigation
• /
• v.30 no.2
• /
• pp.139-143
• /
• 2000

Gene therapy is becoming a very promising and feasible medical intervention as the understanding of human diseases extends to their molecular levels. Since the first US Food and Drug Administration (FDA)-approved human gene therapy protocol was approved in 1990, over 300 human clinical trial protocols had been approved worldwide so far. Even though some of the domestic gene therapy clinical trials also proved promising and more are awaiting, it should be emphasized that many safety aspects as well as effectiveness aspects should be considered during the development process. Moreover, there seems to be less restricted guidelines from the National Control Authority (NCA) in initiating human clinical trials. This article is intended to suggest some basis and points to consider in the development and evaluation of gene therapy products including antisense oligonucleotides pharmaceuticals.

• Journal of Korean Physical Therapy Science
• /
• v.4 no.1
• /
• pp.329-341
• /
• 1997

Teaching swimming to the disability children's has been an accepted adjunct to other therapeutic and rehabilitative modalities for several decades. Much has been written on this subject during ths past 30 years both in the United States and in England. The purpose of this article is First, to describe the basic on swimming program equipment and principles of treatment. Second, an swimming program designied specially for use with disability children's. The foregoing designied swimming program as a recreational and therapeutic activity has tremendous potential for maintaining or improving the psychological and physical well being of the disability children's. A swimming or pool therapy program which is under the supervision of a therapist with a keen understanding of the nature and complexity of disability children's.

• Journal of Korean Institute of Industrial Engineers
• /
• v.18 no.2
• /
• pp.141-147
• /
• 1992

This article evaluates the efficiency of three branch-and-bound heuristics for a job scheduling problem that minimizes the sum of absolute deviations of completion times from a common due date. To improve the performance of the branch-and-bound procedure, Algorithm SA is presented for the initial feasible schedule and three heuristics : breadth-first, depth-first and best-first search are investigated depending on the candidate selection procedure. For the three heuristics the CPU time, memory space, and the number of nodes generated are computed and tested with nine small examples (6 ${\leq}$ n ${\leq}$ 4). Medium sized random problems (10 ${\leq}$ n ${\leq}$ 30) are also generated and examined. The computational results are compared and discussed for the three heuristics.

• Journal of the Korean Institute of Navigation
• /
• v.6 no.2
• /
• pp.65-75
• /
• 1982

During the last decade the world had experienced oil crisis twice: the first one was the fourfold jump in oil prices in 1973 and 1974, the second one came in 1979 with 2.6 times price hike. The current crude oil prices stand around the level of $30 a barrel. The first reaction came quick, with reduced oil consumption and a general decline in economic activity. Furthermore, the second oil crisis has brought about tremendous and varied impacts upon the shipping industry, which is now undergoing an adaptation process to the changing environments. This article is divided into five chapters: chapter I is the introduction on the subject under examination; chapter II is devoted to the trends of the seaborne trade cargoes after the oil crisis; chapter III reveals the impact of the oil price hike on ships and their desion; chapter IV deals with the challenges shipping enterprises face in terms fo economic modus operandi and new international political environments; chapter V sets forth conclusion.

• Proceedings of the KAIS Fall Conference
• /
• 2007.11a
• /
• pp.63-66
• /
• 2007

본 논문에서는 주변에서 쉽게 구할 수 있는 재료를 이용해 만든 인덕터와 커패시터를 사용해 윌킨슨 전력 분배기를 설계/제작하였다. 일반적으로 전력 분배기는 $\lambda/4$ 전송선로를 이용하기 때문에 인덕터와 커패시터를 사용할 수 있도록 전송선로를 집중소자로 변환해야 한다. 전송선로를 집중소자로 변환하기 위해 한 개의 직렬 인덕터와 두 개의 병렬 커패시터로 등가화하였다. 인덕터는 솔레노이드 형태로 선의 굵기와 솔레노이드의 반지름, 감은수에 변화를 주며 제작하였고, 커패시터는 평행판 커패시터 형태로 넓이에 변화를 주어 제작하였다. 구현된 전력 분배기는 설계 주파수에서 각각의 출력 포트에 -3.30dB, -3.31dB로 전력이 균등분배 되는 특성을 보였고, 반사손실은 -42.36dB, 출력 포트 간의 격리도는 -31.54dB로 설계 조건을 만족하였다.

• Korean Medical Education Review
• /
• v.15 no.1
• /
• pp.25-30
• /
• 2013

Assessment plays a vital role in outcome-based education (OBE). This article describes the characteristics of assessment and appropriate assessment instruments for measuring learning outcomes in OBE. Assessment in OBE needs to be formative, continuous, and frequent. Miller's pyramid is useful for selecting the appropriate assessment instruments to reflect a specific outcome; different methods can be applied to evaluate one outcome. Outcomes and competency mean that student must 'do'; therefore, performance tests are emphasized. Qualitative methods as well as quantitative methods are used to evaluate the outcomes of areas such as professionalism or ethics. An absolute criterion-based standard is usually applied to decide whether students pass or fail, but the decision should be based on gathering value judgments and reaching consensus. Active participation of faculty members and students in assessment is crucial.