• Title/Summary/Keyword: Standard Research

Search Result 14,297, Processing Time 0.047 seconds

Standard Classification System of Marine Research Facility and Equipment for an Integrated Management (통합관리를 위한 해양연구시설·장비 표준분류체계)

  • RHO, TAEKEUN
    • The Sea:JOURNAL OF THE KOREAN SOCIETY OF OCEANOGRAPHY
    • /
    • v.25 no.4
    • /
    • pp.132-159
    • /
    • 2020
  • As multidisciplinary marine research is actively conducted, various types of marine research facilities and equipment are purchased every year. However, among marine research facilities and equipment, it is difficult to classify and manage various types of field observation equipment used for environmental data collection and sample collection under the current national research facility and equipment standard classification system. In the case of Korea Institute of Ocean Science and Technology, about 30% of research facilities and equipment are unclassified and not properly managed. In this study, marine research facilities and equipment are classified into 7 middle and 36 sub-classes according to their characteristics. It is proposed to add a large classification group called 'Environmental Observation/Analysis Equipment', to the national research facility equipment standard classification system. In addition, it is proposed to classify the equipment operated in the laboratory among marine research facilities and equipment according to the existing national research facility equipment standard classification system. Through this, it is expected that all of Korea's marine-related research facilities and equipment can be systematically classified and managed effectively.

The Systematic Management for Trace Hazard Compounds in Drinking Water (수돗물에서 미량유해물질의 체계적 관리방안 연구)

  • Park, Sun-Ku;Rim, Yeon-Taek
    • Journal of Korean Society on Water Environment
    • /
    • v.21 no.5
    • /
    • pp.431-441
    • /
    • 2005
  • The study was carried out to improve and regulate the drinking water quality standard and drinking water quality monitoring substances. For the reliability and safety of finished water, It has been monitored for trace organic and inorganic compounds of 333 in finished water of water treatment plants during 1989 to 2003. As a result of monitoring, 51 compounds were detected from 333 compounds, and it has been regulated the drinking water quality standard of 26 substances and 20 mitoring substance. Improvement and regulation method of the drinking water quality standard was performed by comparing and analyzing with detection concentration, detection frequency, risk assessment and foreign drinking water quality standard.

Development of a basic kimono sleeve - Focusing on the standard body type of Korean people in their thirties - (기모노슬리브 원형 개발 - 30대 표준체형을 중심으로 -)

  • Kwon, Soon Kyo;Uh, Mi-Kyung
    • The Research Journal of the Costume Culture
    • /
    • v.25 no.2
    • /
    • pp.224-236
    • /
    • 2017
  • Kimono sleeves have continuously appeared in modern fashion as a design motif and this trend has become increasingly prevalent recently. However for research in the area of clothing composition for kimono sleeves in Korea, there has been a lack of development of master patterns based on basic data from the analysis of the standard body type of Korean people and finalized designs based on comparative experiments and analysis of pre-existing research Thus, there is no ideal master kimono sleeve pattern development research based on the examination of the results of the analysis of the standard body type of Korean people. Therefore by recognizing the importance of developing a master kimono sleeve pattern, this research aims to present a practical master kimono sleeve pattern for the standard body type of someone in their 30s. First, the four master patterns were collected and a dressing evaluation was conducted, and by selecting and improving one of these master designs, a final research master pattern was developed after a second dressing evaluation. Through this research, it was possible to design a master kimono sleeve pattern appropriate both externally and functionally for the standard body type of someone in their 30s, which has not been a consideration in previous research.

A Study on the trend and applications of S-100 Standard (S-100 표준 동향 및 적용사례 연구)

  • Oh, Se-Woong;Park, Jong-Min;Suh, Sang-Hyun
    • Proceedings of the Korean Institute of Navigation and Port Research Conference
    • /
    • 2011.11a
    • /
    • pp.88-90
    • /
    • 2011
  • The IHO(International Hydrographic Organization) has developed the S-100 standard as a universal hydrgraphic data model for consistent use and application of various hydrographic data and sources, and is developing the product specification standards. The organization modified this standard to reflect the requirements of application parts, detailed the insufficient contents for products. In this study, the trend and recent requirement of S-100 standard were analyzed. Also, a method of managing S-100 standard was completed based on the analysis of S-100 application.

  • PDF

Studies on Production of L-Glutamic Acid from Acetate by Microorganisms -part 1. Isolation and Identification of powerful Glutamic Acid producing Bacteria- (빙초산을 탄소원으로한 글루탐산 생성에 관한 연구 -제1보 고축적능균의 분리와 동정-)

  • Yoo, Young-Jin;Kim, Taik-Young;Park, Ke-In;Kim, Ki-Joo;Han, Deok-Bong;Song, Seok-Hoon
    • Korean Journal of Food Science and Technology
    • /
    • v.5 no.4
    • /
    • pp.197-200
    • /
    • 1973
  • A bacterium strain, K-73-3, which was isolated from waste soil Korea brewing factory, could grow on acetate as the sole carbone source and accumulated a considerable amount of L-glutamic acid in the liquid culture medium (20 g/l). This strain was named Corynebacterium sp. by the standard method of taxonomy procedures given in the Manual Microbiological Methods.

  • PDF

The Planning of Polyester Fabric Standard Color Collections in Daegu, Gyeongbuk (대구·경북지역 폴리에스테르 직물의 표준색표집 설계)

  • Lee, Kyung-Hee
    • Fashion & Textile Research Journal
    • /
    • v.5 no.4
    • /
    • pp.337-350
    • /
    • 2003
  • Fiber industry is export leading industry that guide national economy development after the 1960s in Korea. But lately, including China and Southeast Asia pursuit, domestic fiber industry is taking serious situation. Various kind methods can be proposed for high value added in fiber industry, the research about color is essential. The importance of color is increasing in modern textile and fashion industry. Color is important factor of textile and fashion industry because color affects strong influence in human's sensitivity. Color expresses by hue, value and chroma but fashion industry is using mainly hue and tone color system. Daegu Gyeongbuk area is domestic maximum syntheic fiber producing district. This study planned the polyester standard color collections for general color management of the polyester industry in Daegu Gyeongbuk. As basic research for this I investigated the color appearance distribution of polyester fabrics in Daegu Gyeongbuk that were produced for the recently 10 years and Japanese polyester color collections "SCOTDIC 2450". Reflect these study finding, in this research planned the usable standard color collections "Hue and Tone Polyester Standard Color 288". This research constructs insufficient domestic color infrastructure and expect that basic role to develop the competitive power for Korean fiber industry.

FUEL CHANNEL ANALYSIS FOR 35% RIH BREAK IN CANDU REACTOR LOADED WITH CANFLEX-RU FUEL BUNDLES

  • Oh, Dirk-Joo;Lee, Young-Ouk;Jeong, Chang-Joon;Lim, Hong-Sik;Suk, Ho-Chun
    • Proceedings of the Korean Nuclear Society Conference
    • /
    • 1998.05a
    • /
    • pp.719-724
    • /
    • 1998
  • A preliminary fuel channel analysis for 35% reactor inlet header (RIH) break in CANDU reactor loaded with the CANFLEX-RU fuel bundles has been performed. The predicted results are compared with those for the reactor compared with those for the reactor loaded with standard 37-element bundles. The maximum fuel centerline and sheath temperatures for the CANFLEX-RU bundle channel were lower by 338 and 122 $^{\circ}C$, respectively, than those for the standard bundle because of the Bower maximum linear power of the CANFLEX-RU bundle In spite of the 0.4 FPS higher power pulse of the CANFLEX-RU bundle case. Fuel integrity margin to fuel breakup for the CANFLEX-RU bundle is about 50 J/g higher than that for the standard bundle. The PT/CT contact for the CANFLEX-RU bundle occurred 2 s later than that for the standard bundle. The PT/CT contact temperature for the CANFLEX-RU bundle was 2 $^{\circ}C$ lower than that for the standard bundle. These provide the CANFLEX-RU bundle with the negligibly enhanced safety margin for the fuel channel integrity in CANDU 6 reactor, compared with the standard bundle.

  • PDF

The Safety Assessment of Fire needling (화침의 안전성 평가에 관한 고찰)

  • Yeon, Sun-Hee;Lee, Sae-Bhom;Kwon, O-Sang;Cho, Seong-Jin;Choi, Kwang-Ho;Lee, Sang-Hun;Choi, Sun-Mi;Ryu, Yeon-Hee
    • Korean Journal of Oriental Medicine
    • /
    • v.18 no.3
    • /
    • pp.103-110
    • /
    • 2012
  • Objectives : Fire needling has been applied as the treatment for various diseases and been getting much attention from Oriental medicine due to its excellent effectiveness as the results of clinical studies have reported. However, the research findings on the safety of treatment method, materials for the Fire needling needle materials and the possibility of burn injury during the procedure are still insufficient. Methods : A thermo imaging camera was used to confirm the temperature distribution on acupuncture needle and the treatment area during the fire needling therapy. Then the degree of thermal injury was observed by H&E stain and TUNEL assay. In addition, in order to assess the safety of acupuncture materials, we conducted MTT assay using a L6 cell line. Results : The average temperature of the skin surface was observed at $47{\sim}51^{\circ}C$ after classic fire needling and $30^{\circ}C$ after warming fire needling. Warming fire needling therapy does not induce a burn on the tissue and a third degree burn was observed locally in the muscle and skin layers after classic fire needling treatment. This confirms that hwa-acupuncture therapies do not cause major burns. According to the safety assessment test result, no cytotoxicity was detected in the warming fire needling materials. This confirms the safety of the acupuncture materials Conclusions : Various research results on the biological safety of fire needling. Since fire needling therapy induces a burn locally without leaving any scar, and as other results indicate, it is considered a safe treatment method.

Improvement of accuracy in quantitative TXRF analysis of soil sample by applying external standard method (외부표준법을 적용한 토양시료의TXRF 정량분석 정확도 개선)

  • Park, Jinkyu;Park, Ranhee;Han, Sun Ho;Lim, Sang Ho;Lee, Chi Gyu;Song, Kyuseok
    • Analytical Science and Technology
    • /
    • v.29 no.6
    • /
    • pp.261-268
    • /
    • 2016
  • TXRF is a powerful technique for the soil sample analysis due to its ability to conduct quantitative analysis of powder sample without complicated pre-treatment processes. The conventional internal standard method used for this technique suffers from relatively low accuracy because of varying matrix effects of soil. In order to improve the accuracy, external standard method was applied to analyze two types of soil samples; acid-dissolutionized soil solution and detergent-suspended soil powder. Individual ICP-AES/MS grade standards were mixed, diluted and measured to create standard curves, but applying these curves for analyzing the soil solution sample did not make any improvement in comparison with the internal standard method. On the other hand, standard curves were created with using standard soil powders for the analysis of soil powder samples, and we found that this method increased the accuracy significantly relative to the internal standard method. Especially, Al, Fe, K, Ca, Ti, Ba, Mn, Sr, Rb, Cu was measured with relatively high accuracy (relative error = ${\pm}20%$).

Accurate Measurement of Arsenic in Laver by Gravimetric Standard Addition Method Combined with High Resolution Inductively Coupled Plasma Mass Spectrometry

  • Lee, Kyoung-Seok;Kim, Hyeon-Ji;Yim, Yong-Hyeon;Kim, Jeongkwon;Hwang, Euijin
    • Mass Spectrometry Letters
    • /
    • v.5 no.2
    • /
    • pp.57-61
    • /
    • 2014
  • A gravimetric standard addition method combined with internal standard calibration has been successfully developed for the accurate analysis of total arsenic in a laver candidate reference material. A model equation for the gravimetric standard addition approach using an internal standard was derived to determine arsenic content in samples. Handlings of samples, As standard and internal standard were carried out gravimetrically to avoid larger uncertainty and variability involved in the volumetric preparation. Germanium was selected as the internal standard because of its close mass to the arsenic to minimize mass-dependent bias in mass spectrometer. The ion signal ratios of $^{75}As^+$ to $^{72}Ge^+$ (or $^{73}Ge^+$) were measured in high resolution mode ($R{\geq}10,000$) to separate potential isobaric interferences by high resolution ICP/MS. For method validation, the developed method was applied to the analysis of arsenic content in the NMIJ 7402-a codfish certified reference material (CRM) and the result was $37.07mg{\cdot}kg^{-1}{\pm}0.45mg{\cdot}kg^{-1}$ which is in good agreement with the certified value, $36.7mg{\cdot}kg^{-1}{\pm}1.8mg{\cdot}kg^{-1}$. Finally, the certified value of the total arsenic in the candidate laver CRM was determined to be $47.15mg{\cdot}kg^{-1}{\pm}1.32mg{\cdot}kg^{-1}$ (k = 2.8 for 95% confidence level) which is an excellent result for arsenic measurement with only 2.8 % of relative expanded uncertainty.