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이상곤,김윤근 東西大學校 2001 동서논문집 Vol.7 No.-
In this paper, we developed elliptic curve crypto system software package runnable on a java card and implemented ECDSA algorithm. Two versions, 16-bit version and 32bit version, are developed. The package includes addition, multiplication, inversion, and polynonlial modular arithmethic libaranes based on F2˝ and polynomial bases. The package also includes addition, subtraction, and scalar multiplication arithmetlc libraries over affine coordinate of elliptical curve. We used this library to implement ECDSA.
건조기에서 Amino수지 성형재료의 경화특성에 관한 연구
최재욱,최일곤,목연수,김상렬 釜慶大學校 1998 釜慶大學校 論文集 Vol.3 No.2
We studied the effect of mass transfer in a dryer on the condensation of amino resin mould material and the curing characteristics, and investigated the drying rate, the moisture and the curing fluidity according th the variations of the temperature and the drying media recycle volume which affects the mass transfer in the drying process. So, the result are summarized as follows: ① As the drying temperature increased to 70℃, 80℃ and 90℃ respectively, the drying rate became fast. ② In the same final drying time, the higher the drying temperature became, the more the moisture content of the urea resin mould material inceased. ③ Accordingly as the drying temperature increased, the moisture content of the drying material suddenly decreased in short drying time, but the moisture content increased when the drying time was between 80 minute and 120 minutes. ④ As the drying temperature increased, the curing fluidity of amino resin mould meterial decreased. ⑤ As the recycle volume of the drying media increased, the curing fluidity decreased.
임우조,황재호,김윤곤 釜山水産大學校 1994 釜山水産大學 硏究報告 Vol.34 No.1
In this study, the steel pipe piping water(SSPW) and SPPW on weldment were tested by using of a cavitation erosion - corrosion test appartus with nozzle(water tunnel type) and were investigated under the marine environment of liquid. The main results obtained were as follows 1) The corrosion - erosion of weldment is more susceptible than that of base metal. 2) The weight loss rate of heat affected zone of weldment can be largely improved by the preheat, dry of base metal and electrode before welding. 3) The electrode potential becomes noble by the pre-heat, dry of base metal and electrode before welding, and the corrosion current density is decreased.
Soybean growth and yield response to elevated temperature and light intensity
Young-Son Cho,Sok-Dong Kim,Bon-Chul Koo,Won-Ha Yang,Jin-Chul Shin,Young-Han Yun1,Joung-Gon Kim 한국작물학회 2008 한국작물학회 학술발표대회 논문집 Vol.2008 No.10
Changing climate could be effect on the growth of soybean and seed yield, so we evaluated newly developed soy cultivars in the point of the physiological characteristics by changing temperature and light intensity in the phytotron. Two soy cultivars evaluated in three temperature levels (T1, 20/15; T2, 25/20; T3, 30/25oC at day/night) the pot experiment in phytotron between winter and spring in 2006 and spring and summer in 2007. Increased temperature from T1 to T2 and T2 to T3 enhanced crop growth parameters greatly and shortened growth duration and increased seed yield, however, grown in winter and spring enhanced too much plant height, so plant stems were very slim and weak and it resulted in the lodging problem. In this results we can estimate warming in Korean peninsular which might be increase temperature with low light intensity, so plant breeders and physiologists should be develop improved lodging resistance cultivars under low light intensity and high temperature.
Development of screening method for highly enriched peptides toward a multiple LPS using epoxy bead
Yun-Gon Kim(김윤곤),Chang-Soo Lee(이창수),Woo-Jae Chung(정우재),Eun-Mi Kim(김은미),Dong-Sik Shin(신동식),June-Hyung Kim(김준형),Yoon-Sik Lee(이윤식),Junho Chung(정준호),Byung-Gee Kim(김병기) 한국생물공학회 2005 한국생물공학회 학술대회 Vol.2005 No.10
Kim, Keun Pil,Kim, Yun-Gon,Choi, Chang-Hyung,Kim, Hye-Eun,Lee, Sang-Ho,Chang, Woo-Suk,Lee, Chang-Soo Royal Society of Chemistry 2010 Lab on a chip Vol.10 No.23
<P>Antibiotic resistance of biofilms is a growing public health concern due to overuse and improper use of antibiotics. Thus, determining an effective minimal concentration of antibiotics to eradicate bacterial biofilms is crucial. Here we present a simple, novel one-pot assay for the analysis of antibiotic susceptibility of bacterial biofilms using a microfluidics system where continuous concentration gradients of antibiotics are generated. The results of minimal biofilm eradication concentration (MBEC) clearly confirm that the concentration required to eradicate biofilm-grown <I>Pseudomonas aeruginosa</I> is higher than the minimal inhibitory concentration (MIC) that has been widely used to determine the lowest concentration of antibiotics against planktonically grown bacteria.</P> <P>Graphic Abstract</P><P>This study presents a microfluidic approach for the <I>in situ</I> analysis of antibiotic susceptibility of bacterial biofilms using the generation of a continuous concentration gradient of antibiotics. <IMG SRC='http://pubs.rsc.org/services/images/RSCpubs.ePlatform.Service.FreeContent.ImageService.svc/ImageService/image/GA?id=c0lc00154f'> </P>
Mid-Term Strategic Plan for the Public Health and Medical Care Cooperation in the Korean Peninsula
Kim Yun Seop,Noh Jin-Won,Lee Yo Han,Kim Sin Gon 대한의학회 2024 Journal of Korean medical science Vol.39 No.4
As extensive as the concept of and the resources required for ‘Health for Korean Unification’ are, and due to the limited access to information on the state of health and medical care in North Korea, discussion on ‘Health for Korean Unification’ has tended to be intermittent and lacked concrete action plans. In this article, we specifically distinguished areas of cooperation and selected five executable agenda that meet the goals of international development cooperation: 1) Health security; 2) Easing the burden of major diseases; 3) Resilient healthcare system; 4) R&D cooperation; 5) Sustainable cooperation system. Then we provided corresponding strategic priorities and operative directions, in consideration of future military and political sanctions against North Korea. The strategies we outline are sustainable, preemptive for problems that might affect lives of South and North Korean citizens, and satisfy the unmet needs of the North Korean health system. Throughout the process, we utilized a special platform, the ‘Korean Peninsula Healthcare Cooperation Platform,’ designed to enable continual communication across sectors engaged in public health and medical care. By doing so, we take the first step to actually carry out the 'Health for Korean Unification,’ which tended to have remained on the discussion agenda.