Zobrazeno 1 - 10
of 17
pro vyhledávání: '"JongOh Choi"'
Publikováno v:
2018 Conference on Precision Electromagnetic Measurements (CPEM 2018).
A quantum-based force standard project is in progress at Korea Research Institute of Standards and Science (KRISS). Since Choi et al. proposed the concept of generating discrete sub-piconewton magnetic force utilizing a superconducting microring, the
Autor:
Dukjin Kang, Jinbong Hwang, Joonhee Lee, Seonghee Ahn, Song-Yee Baek, JongOh Choi, Jong-Eun Won, Seok-Won Hyung, Hong Hee Lee, Jong-Su Park, Kihwan Choi, Hee-jung Sim, Byung-Man Kwak, Dongwon Seo, Byungjoo Kim, Hyeyoung Lee, Sunyoung Lee, Hwasim Lee
Publikováno v:
Food Chemistry. 298:125088
Infant formula certified reference material (CRM, KRISS CRM 108-02-003) were developed for the analysis of organic nutrients. The CRM is a milk-based infant formula powder, packaged at 14 g per unit. Ten thousand units were prepared and stored at −
Publikováno v:
Accreditation and Quality Assurance. 16:263-266
The basic model \( x_{\text{CRM}} = x_{\text{char}} + \delta x_{\text{bb}} + \delta x_{\text{sts}} + \delta x_{\text{lts}} \) in the ISO Guide 35 for the evaluation of uncertainty is reviewed. In the basic model, the authors of the Guide assume that
Publikováno v:
Accreditation and Quality Assurance. 15:445-450
Technical barrier to trade (TBT) has become one of the significant non-tariff measures with the advent of the WTO system in 1995. The key issue in TBT is that technical regulations, standards, and conformity assessment should not be used as barriers
Publikováno v:
Accreditation and Quality Assurance. 14:43-47
After a measurement, a measured value and a measurement uncertainty are produced as a measurement result. By a repeated measurement, another measurement result is produced. Between the individual results of the two measurements, it is shown that ther
Publikováno v:
Bulletin of the Korean Chemical Society. 23:1590-1594
Liquid chromatography/atmospheric pressure chemical ionization-mass spectrometry (LC-APCI-MS) has been used for the determination of sulfonamides in meat. Five typical sulfonamides were selected as target compounds, and beef meat was selected as a ma
Publikováno v:
Physica C: Superconductivity and its Applications. 471:1193-1195
We studied effect of ex situ annealing on the superconductivity of Nb thin films on a silicon wafer prepared using DC magnetron sputtering. Fifty-nanometer thick Nb thin films were deposited using a 4-in. target under an Ar pressure of 7.5 × 10−3
DETERMINATION OF HALOACETIC ACIDS IN TAP WATER BY CAPILLARY ELECTROPHORESIS WITH DIRECT UV DETECTION
Publikováno v:
Journal of Liquid Chromatography & Related Technologies. 24:47-55
Application of capillary zone electrophoresis with direct ultraviolet (UV) detection for determining the haloacetic acids in tap water is described. The haloacetic acids were monochloroacetic, trichloroacetic, monobromoacetic, dichloroacetic, bromoch
Autor:
Yong-Heack Kang, Shin-Young Kim, Hyun-Jin Lee, Chu-Shik Kang, Hyun-Goo Kim, Chang-Yeol Yun, Gilsoo Jang, JongOh Choi
Publikováno v:
New & Renewable Energy. 12:36
Publikováno v:
Journal of Heterocyclic Chemistry. 32:307-315
1,2,3,6-Tetrahydropyridines are known to possess analgesic, anti-inflammatory, hyperglycemic and hypoglycemic activities. Substituted 2,4-dinitrophenylpyridinium chlorides 3 were formed by reacting 1-chloro-2,4-dinitrobenzene with hydroxypropyl, hydr