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이종달,도명식,이영욱 嶺南大學校 工業技術硏究所 1994 工業技術硏究所論文集 Vol.22 No.2
The objective of study is to introduce the shortest path searching algorithms and compare the efficiency(or speed) of the shortest path searching in traffic assignment between sequential method and parallel processing method. The main purpose of parallel processing is to perform computations faster than can be done with a single processor by using a number of processors concurrently. The research area is Daegu city. This study performed with the system as follows; IMS B008-1(Transputer motherboard with 4 TRAMs) and algorithm. It was written ANSI-C language. The result of elapsed running time with 3 TRAMs achived speed up of average 2.75 times(2.71∼2.84) compared with 1 TRAMs. If the hardware system could be composed with the configuration of Mesh or Hypercube architecture, study more efficient parallel algorithms, we can expect to make efficient use of memory, perform traffic phenomenon as a real time.
State Indicator of Water Quality for Surface Water and Groundwater in Agriculture
Kim, Min-Kyeong,Jung, Goo-Bok,Ro, An-Sung,Choi, Seung-Chul,Choi, Won-Il,Kim, Eun-Jeong,Lee, Jong-Eun,Yun, Yeo-Uk,Kim, Kab-Cheol,Ko, Do-Young,Kim, Byeong-Ho,Kim, Hyeon-Ji,Park, Sang-Jo,Lee, Seong-Tae,H 한국토양비료학회 2015 한국토양비료학회지 Vol.48 No.5
Indicators of environmental conditions qualitatively and quantitatively describe the state of the environment and natural resources, and the OECD (Organization for Economic Cooperation and Development) has initiated and suggested AEIs (Agri-Environmental Indicators) to assess trends over time of the effects of agriculture on the environment and the effectiveness and efficiency of agricultural and environmental policy measures since 1990's. This study aims to develop the state indicators of water quality for agricultural water, surface and groundwater, to evaluate the environmental impacts of agricultural activities and policies by qualifying the environmental levels of a nation. Status indicators were calculated according to the agricultural water quality standards of OECD and Korea, and their trends were analyzed over time. Particularly, nitrate ($NO_3{^-}$) status indicators of ground water in 2013 were significantly lower than the ones in 2000. Overall, the water quality indicators of surface water in 2013 were higher than the ones in 2012, except for pH and DO. The groundwater quality indicators in 2013 were lower than those of previous years. The optimal management indicators were calculated to assess agricultural surface water and groundwater quality. The findings of this study indicated that the state indicators could play a significant role to establish policies and procedures for managing and conserving water resources. This study also discussed water pollution caused by agricultural and industrial effluents.
State Indicator of Water Quality for Surface Water and Groundwater in Agriculture
Min-Kyeong Kim,Goo-Bok Jung,An-Sung Ro,Seung-Chul Choi,Won-Il Choi,Eun-Jeong Kim,Jong-Eun Lee,Yeo-Uk Yun,Kab-Cheol Kim,Do-Young Ko,Byeong-Ho Kim,Hyeon-Ji Kim,Sang-Jo Park,Seong-Tae Lee,Jae-Young Heo,S 한국토양비료학회 2015 한국토양비료학회지 Vol.48 No.5
Indicators of environmental conditions qualitatively and quantitatively describe the state of the environment and natural resources, and the OECD (Organization for Economic Cooperation and Development) has initiated and suggested AEIs (Agri-Environmental Indicators) to assess trends over time of the effects of agriculture on the environment and the effectiveness and efficiency of agricultural and environmental policy measures since 1990’s. This study aims to develop the state indicators of water quality for agricultural water, surface and groundwater, to evaluate the environmental impacts of agricultural activities and policies by qualifying the environmental levels of a nation. Status indicators were calculated according to the agricultural water quality standards of OECD and Korea, and their trends were analyzed over time. Particularly, nitrate(NO₃<SUP>-</SUP>) status indicators of ground water in 2013 were significantly lower than the ones in 2000. Overall, the water quality indicators of surface water in 2013 were higher than the ones in 2012, except for pH and DO. The groundwater quality indicators in 2013 were lower than those of previous years. The optimal management indicators were calculated to assess agricultural surface water and groundwater quality. The findings of this study indicated that the state indicators could play a significant role to establish policies and procedures for managing and conserving water resources. This study also discussed water pollution caused by agricultural and industrial effluents.
김도영(Do Young Kim),김영준(Young Jun Kim),고승욱(Seung Uk Go),김영찬(Young Chan Kim),이요한(Yo Han Lee),김창희(Changhee Kim) 한국SCM학회 2018 한국SCM학회지 Vol.18 No.2
In this report, we tried to form a new logistic network by introducing autonomous vehicles to present ideas for effective reduction of national logistics costs. For the efficient operation of autonomous vehicles, we conducted Analytic Hierarchy Process(AHP) and selected new hubs from existing post office locations. The results of the analysis are summarized as follows: nine determinants were derived for optimal location selection. Highways(0.295), National Roads(0.169), Railways(0.064), Urban Size(0.179), Urban Accessibility(0.054), GRDP(0.099), Public Land Price(0.08), Interchange(0.02), Scalability(0.04). the most influential location determinant is traffic accessibility, whereas the least influential factor is site condition. Although there are some limitations in the realistic assumption, it was deemed that the formation of a new network using autonomous vehicles is sufficiently efficient and it gave sufficient implications for future research.
( Won Young Jang ),( Mi Hwa Heo ),( Myung Soon Park ),( Ki Young Kwon ),( Jin Young Kim ),( Keon Uk Park ),( Hong Seok Song ),( Young Rok Do ) 대한내과학회 2014 대한내과학회 추계학술대회 Vol.2014 No.1
Multiple myeloma is a cancer of plasma cells, a type of white blood cell present in bone marrow. Cytomegalovirus(CMV) is an important pathogen after allogeneic transplantation. However, few studies have examined CMV reactivation after autologous hematopoietic stem cell transplantation (AHSCT) to treat multiple myeloma(MM). Here, we present our case of CMV reactivation following AHSCT in MM with extramedullary plasmacytoma. 52-years-old female patient visited emergency room due to left arm pain. Her pain started 2weeks ago. Her pain aggravated after bumping to the wall. Serum protein electrophoresis showed peak in gamma region with 4.2g and bone marrow aspiration has 48.2% of immature plamsa cell. Initial serum free kappa light chain were 3,760mg/L. Chest PA showed pleura based plasmacytoma and multiple osteolytic lesion in left humerus and pathologic fracure in same bone. So, she was diagnosed lgG kappa tyep multiple myleoma. She received nail fixation operation in the left humerus. After surgery, she treated with four cycles of thalidomide, cyclophosphamide and dexamethasone(TCD). Her plasmacytoma and marrow plasmacytosis disappeared and serum immunofixation electrophoresis turned to negative. Patient completely recovered after transplantation. CMV Ag were detected on D17 after AHSCT, so intravenous ganciclovir started but CMV Ag copy number did not turned negative. Cidofovir were started after 12days treatment of ganciclovir because of CMV Ag were successively increased. CMV Ag turned to negative following two time injection of cidofovir. A retrospective single center paper reported CMV reactivation after AHSCT in MM and it is relatively common. CMV viremia was frequently detected in CMV seropositive patient. CMV surveillance should be considered, especially when tandem transplantation is performed using combination chemotherapy with highdose melphalan. This is not the case of tandem transplantation but CMV surveillance can be useful in clinical setting.
Lee, Kang Uk,Lee, Jung Hie,Lee, Dong Young,Youn, Jong Chul,Kim, Jeong Lan,Moon, Seok Woo,Kim, Bong-Jo,Ryu, Seung-Ho,Kim, Moon Doo,Lee, Chang-Uk,Lee, Nam-Jin,Chang, Sung Man,Kim, Young Hoon,Kim, Do Hoo Korean College of Neuropsychopharmacology 2015 CLINICAL PSYCHOPHARMACOLOGY AND NEUROSCIENCE Vol.13 No.2
<P><B>Objective</B></P><P>We examined the difference in responses to donepezil between carriers and non-carriers of the A allele at the +4 position of the choline acetyltransferase (ChAT) gene in Koreans.</P><P><B>Methods</B></P><P>Patients who met the criteria for probable Alzheimer’s disease (AD) (n=199) were recruited. Among these, 145 completed the 12-week follow-up evaluation and 135 completed the 26-week scheduled course. Differences and changes in the Korean version of the mini-mental state examination (MMSE-KC) score, Korean version of the Consortium to Establish a Registry for Alzheimer’s Disease Neuropsychological Assessment Battery (CERAD-K[N]) wordlist subtest score (WSS), CERAD-K(N) total score (TS), and the Korean version of geriatric depression scale (GDS-K) score between baseline and 12 weeks or 26 weeks were assessed by the Student’s <I>t</I>-test.</P><P><B>Results</B></P><P>At 12 weeks, the changes in the MMSE-KC score, CERAD-K(N) WSS, and CERAD-K(N) TS from baseline were not significant between ChAT A allele carriers and non-carriers; however, at 26 weeks, these changes were significantly larger in ChAT A allele carriers than in non-carriers (<I>p</I>=0.02 for MMSE-KC and <I>p</I>=0.03 for CERAD-K(N) WSS respectively).</P><P><B>Conclusion</B></P><P>Our findings in this study suggested that presence of the A allele at the +4 position of ChAT might positively influence the treatment effect of donepezil in the early stages of AD in Koreans.</P>