• 한국항해항만학회지
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• 제29권7호
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• pp.595-601
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• 2005

The IMO manoeuvrability standard was established for preventing sea accidents such as collisions and strandings due to the lack of manoeuvrability. The standard of ship manoeuvrability enforced by resolution MSC.l37(76) has been applied to vessels of 100m or more in length and all chemical tankers and gas carriers regardless of the length, which were constructed on or after 1 July 1994. The IMO manoeuvrability standard is able to be divided into three kinds as followings; (1) Turning capability standard: Estimated values in design stage are to be certified by turning circle test of the actual vessel. (2) Course keeping quality standard : Estimated values in design stage are to be certified by 10 deg. and 20 deg. zig-zag tests of the actual vessel. (3) Shortest stopping distance standard : Estimated value in design stage is to be certified by the shortest stopping distance tested by the actual vessel. In this paper, the authors verified the criteria of IMO manoeuvrability standard comparing them with the values resulted from sea trial tests of various kinds of actual vessels and examined separately the validity of all criteria of the standard.

• 식품산업과 영양
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• 제21권2호
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• pp.1-7
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• 2016

• 한국가스학회:학술대회논문집
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• 한국가스학회 2003년도 추계학술발표회 논문집
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• pp.47-52
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• 2003

• Safe Food
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• 제2권1호
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• pp.5-19
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• 2007

• 한국의류산업학회지
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• 제13권3호
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• pp.332-345
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• 2011

This research designed usable standard color chart which was planned by hue and tone color system. This research studied 5 types standard color chart by designed tone map and preceding research. "Basic Color Chart 14 Colors" was planned for kindergarteners. "Primary Color Chart 63 Colors" was planned for schoolboys. "Middle Grade Color Chart 114 Colors" was planned for junior high school students. "High Grade Color Chart 152 Colors" was planned for senior high school students. "Hue and Tone 205 Colors" was planned for university students and general publics. These 5 types standard color chart were produced the trial color coordinate card and attached the Munsell notation which could reappear the spare color paper when needed. These 5 types standard color chart would be offered the data base for efficient color coordinate education as school age.

• 한국한의학연구원논문집
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• 제16권3호
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• pp.115-121
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• 2010

Objectives : Quality control of the needle tips and prevention of pollutions are important factor for safe and effective acupuncture treatment. Ear acupuncture needle is made by 3 companies in Korea, and used to treat for obesity or smoking in clinic frequently, but the Korean industrial Standard is proposed most recently. In spite of the importance, there has been little study about that. Moreover, there was no study about ear acupuncture needle. Methods : We investigated the current condition of needle shape and pollution about the tips and body of the ear acupuncture needle under the stereoscopic microscope. Samples are selected 100 pieces from 300 pieces randomly in each company. Results : The substandard needles are classified into four groups and counted 1. Normal condition (55.3%), 2. Scratch on the surface (14.0%), 3. Malformation of tips (19.3%), 4. Pollution of body (4.3%), 5. Multiple Substandard (7.0%). In the case of including type 2 as a standard needle, normal rate of A company was 81% when B was 76%, and C was 51%. Conclusion : The substandard ear acupuncture needles can induce local side effects such as needling pain or itching. Furthermore, it can disturb the proper effect of acupuncture treatment. We hope that this study can help to improvequality of ear acupuncture and reduce substandard rate for safe and effective ear acupuncture treatment.

• 전력전자학회:학술대회논문집
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• 전력전자학회 2005년도 전력전자학술대회 논문집
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• pp.360-362
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• 2005

In this paper, standard model for electrical power subsystem of a satellite simulator is presented and analyzed. The main purpose of standard model simulator is to promote platform independency, interoperability and reusability of simulation models. And, EPS simulator prototype model is proposed using the SMP2 standard.

• Journal of Mechanical Science and Technology
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• 제20권7호
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• pp.961-971
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• 2006

A deadweight force standard machine is a mechanical structure that generates force by subjecting deadweights to the local gravitational field. The Korea Research Institute of Standards and Science (KRISS) developed and installed a 100 kN deadweight force standard machine for national force standards. It can generate forces from 2 kN to 110 kN in increments of 1 kN. The uncertainty of the force machine was estimated and declared as $2\times10^{-5}$. This 100 kN deadweight force machine was compared with the 500 kN deadweight force standard machine at KRISS and the 20 kN and 50 kN deadweight force standard machines at the National Metrology Institute of Japan (NMIJ). The measurement results showed good agreement between the deadweight force machines, and the accuracy level of the 100 kN deadweight force machine was verified.

• 한국진공학회:학술대회논문집
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• 한국진공학회 2010년도 제39회 하계학술대회 초록집
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• pp.73-73
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• 2010

Various organic- and bio-conjugated nanoparticles have been studied extensively for biological applications in medical diagnoses and drug delivery systems. Gold nanoparticles (AuNP) and poly(ethylene glycol) (PEG) are known biocompatible materials to be used in vivo and are becoming increasingly important in biomedical applications. In this work, we investigated the stability of PEG-conjugated AuNPs, dialysis and centrifuge effects after synthesis or pegylation of AuNPs as a function of elapsed time by using ToF-SIMS imaging technique along with dynamic light scattering (DLS), UV-visible absorption spectroscopic and statistical analyses. Roughly 15-nm-sized AuNPs were synthesized in a citrate-conjugated form, and then converted into the thiol-terminated PEG (O-[2-(3-Mercaptopropionylamino)ethyl]-O'-methylpolyethyleneglycol, M.W.=5 kDa) form. Based on our data, we will show that ToF-SIMS imaging analysis along with DLS, UV-visible absorption and statistical analyses would be a useful method to evaluate stability of PEG-conjugated AuNPs in various environmental conditions.

• 산업노동연구
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• 제23권1호
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• pp.85-127
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• 2017

1998년 정부출연연구기관을 대상으로 도입되기 시작한 경영혁신정책으로 인해 정부출연연의 연구개발인력 구조는 지속적으로 변화해왔고, 이 중 가장 두드러진 변화는 비정규직 연구인력의 양적 증가 및 비정규직 고용형태의 다양화라고 할 수 있다. 본 논문에서는 연구기관의 고용구조를 근본적으로 변화시킨 요인이라고 할 수 있는 연구과제 중심 운영제도 PBS(project base system)의 도입 및 운영과 관련하여 지난 20년간 연구개발인력 고용구조상에서 나타난 변화를 살펴보고, 변화의 대표적인 사례인 과학기술 연구분야 비정규직 노동자들의 현황을 분석해 보고자 한다. 연구책임자들은 PBS로 인한 운영비의 압박을 비정규직 연구인력을 고용하는 것을 통해 해결할 수밖에 없는 구조에 놓여있다. 그리고 이러한 구조는 비정규직의 양적인 증가와 다양화를 부추기게 되고, 비정규직들의 임금 및 근로조건을 더욱 열악하게 만들고 있다. 연구기관이라는 특수성을 감안해볼 때, 연구인력의 불안정한 고용지위는 연구의 성과 및 과학기술발전에 있어서 부정적인 영향을 미칠 것으로 예상된다.