슬개골에 발생한 동맥류성 골낭종 : 1예 보고 Report A case

심재성,하상호,오상근,강치중,김영철 최신의학사 1985 最新醫學 Vol.28 No.11

Finger Tap Reaction Time as an Independent Prognostic Factor for Functional Outcome in Older Adults

심재성,김광일,임재영,김기웅,김원석,백남종 대한노인병학회 2017 Annals of geriatric medicine and research Vol.21 No.2

Background: Decline in physical performance has been established as a risk factor for mortality and disability in older adults. Although previous studies have reported the age-related changes in finger-tapping ability, no study has been published describing the prognostic implications of finger tap reaction time among community-dwelling older adults. Methods: A total of 433 participants(227 men and 206 women) aged over 65 years were enrolled in the Korean Longitudinal Study on Health and Aging. According to the finger tap reaction time, participants were divided into 2 groups: a fast-reaction group and a slow-reaction group. We analyzed the interaction between delay in motor speed measured using the finger-tapping task and 5-year poor functional outcome, defined as short physical performance battery(SPPB) scores of 9 or less or mortality, during the follow-up period. Results: A significant increase in the risk of poor functional outcome was observed in the slow-reaction group, compared with in the fast-reaction group, even after covariate adjustment using multiple logistic regression analysis(odds ratio, 2.21; 95% confidence interval, 1.37-3.58). Conclusion: We conclude that delayed finger tap reaction time is an independent prognostic factor for poor functional outcome in older adults.

발명의 날 수상자 인터뷰-은탑산업훈장 수훈자

심재성,Sim, Jae-Seong 한국발명진흥회 2006 發明特許 Vol.31 No.5

새천년과 신지식 농업인 - 새천년은 '생산성 제고$\cdot$신시장 개척'에 초점 둘 것 - '신지식농업인' 감성$\cdot$창조$\cdot$실천기능 등 새로운 것 추구해야

심재성 한국작물보호협회 2000 자연과 농업 Vol.21 No.1

모바일 PST를 위한 효율적 PA 기법 설계 및 구현

심재성,박석천,Shim, Jae-Sung,Park, Seok-Cheon 한국정보통신학회 2014 한국정보통신학회논문지 Vol.18 No.12

PST stands for the Premium Sales Tool for Product Consulting is customized product catalog system. In other words, the product classification categories of content for consulting and sales to customers by providing useful information for the maximization of an overall system. These problems with mobility and flexibility of updating the solution to integrate mobile with mobile devices, but high-performance high-resolutions era content data continuously, but still it is difficult to handle. In this paper, to solve this problem, depending on the user's gesture by allowing periodic allocation and release of a problem for load generation enhanced by improving the PST system has been designed and implemented. Implementation was a result of the test the performance of the system, that PA system that has been provided by the traditional DA system show the allocation and the average 78% of the rate of decrease the load is released in the frequency of page, CPU utilization was reduced an average 72% I was confirmed. PST는 제품 컨설팅을 위해 제품 카탈로그를 시스템화 한 것으로 대다수의 모바일 PST(Premium Sales Tool)는 DA(Dynamic Allocation)기법을 사용한다. 그러나 모바일 기기는 수용할 수 있는 자원이 한정되어 있어 고해상도의 콘텐츠를 연속적으로 질의 할 경우 요청한 리소스가 대기상태로 쌓여 CPU의 과부하가 발생할 수 있다. 따라서 본 논문에서는 사용자의 제스처에 따라 페이지 할당과 해제를 주기적으로 제공함으로써 부하 발생에 대한 문제를 개선하여 향상된 PST 시스템을 설계 및 구현하였다. 구현한 시스템의 성능을 테스트 한 결과 기존 DA 기반 시스템 보다 제안한 PA(Pattern Allocation) 기반 시스템이 페이지 할당과 해제 빈도수에 대한 부하가 평균 약 78%의 감소율을 보였으며, CPU 점유율은 평균 약72% 감소한 것을 확인하였다.

PMIPv6에서의 위치관리기법을 고려한 이 기종 망간의 Fast Handover 기법 설계 및 평가

심재성,박석천 한국정보처리학회 2012 정보처리학회논문지. 컴퓨터 및 통신시스템 Vol.1 No.3

As the wireless Internet become more widely accessible, variety of Internet services can be used without limitation of location. However, existing mobility management methods such as MIP and PMIP of IETF requires the load of heavy protocol stack on the mobile nodes or the addition of components such as LMA and MAG. In this paper, we proposed the location management technique in the PMIPv6 and Fast Handover technique. according to the moving pattern of the node, the location management technique proposed in order to adjust the paging area dynamically. The Fast Handover technique applied MIH technology and it reduced the handover signal processing time between heterogeneous network. The location management cost in the environment which the node moves in order to evaluate this and handover delay time was calculate. The proposal technique was efficiently more evaluated than PMIPv6 with the smallest 29% and maximum 83%. 무선 인터넷 서비스가 활성화 되면서 현재 많은 사용자들은 공간에 제약 없이 다양한 인터넷 서비스들을 사용할 수 있게 되었다. 그러나 기존의 모바일 노드의 이동성 보장을 위한 IETF의 MIP, PMIP 등과 같은 이동성 관리 기법들은 모바일 노드에 무거운 프로토콜 스택을 탑재하게 하거나 LMA, MAG 등과 같은 신규 구성 요소 추가 등의 문제점을 안고 있다. 이를 위해 본 논문에서는 PMIPv6에서의 위치관리기법과 Fast Handover 기법을 제안하였다. 위치관리기법은 노드의 이동패턴에 따라 페이징 영역을 동적으로 조정하도록 제안하였고, Fast Handover 기법은 MIH 기술을 적용하여 이 기종 네트워크간의 핸드오버 신호 처리 시간을 단축하였다. 이를 평가하기위해 노드가 이동하는 환경에서의 위치관리비용과 핸드오버 지연시간을 계산하였고, 제안기법이 PMIPv6보다 최소 29%, 최대 83% 더 효율적으로 평가되었다.

Heterologous expression of bacterial trehalose biosynthetic genes enhances trehalose accumulation in potato plants without adverse growth effects

심재성,서주석,서준성,김용환,구연종,최양도,정춘균 한국식물생명공학회 2019 Plant biotechnology reports Vol.13 No.4

Trehalose is a non-reducing disaccharide found in various organisms, including bacteria, fungi, invertebrates, and plants. It plays essential roles in diverse biological processes such as stress resistance, metabolism, and development in plants. Despite the important role of trehalose, it is challenging to increase trehalose levels because of its negative effects on plant growth and development. In this study, we tested several combinations of different promoters and trehalose biosynthetic genes to efficiently accumulate trehalose in potato plants. Transgenic potato plants expressing TPSP (trehalose-6-phosphate synthase/ phosphatase) fusion gene under the control of Rd29A promoter increased trehalose content in response to high salt stress and did not show significant growth retardation. Although constitutive overexpression of plastid-targeted MTSH (maltooligosyltrehalose synthase/trehalohydrolase) fusion gene driven by CaMV 35S promoter remarkably accumulated trehalose, the transgenic potato plants showed a severely stunted phenotype. By contrast, stress-inducible expression of plastid-targeted MTSH under the control of Rd29A promoter led to trehalose accumulation without growth defects in response to high salt stress. Besides, tuber-specific expression of plastid-targeted MTSH driven by GBSS (granule-bound starch synthase) promoter specifically increased trehalose level in potato tubers without stunting growth. Consequently, we suggest that heterologous expression of TPSP and MTSH fusion genes driven by stress-inducible or tuber-specific promoters can be an effective strategy for accumulating trehalose in potato plants as well as minimizing its adverse effects on potato growth.

잔디류식물에 있어서 생장억제제시용효과에 관한 연구 ( Growth Regulation of Korean Lawngrass and Manilagrass With Several Growth Retardants )

심재성 한국잡초학회·한국잔디학회 1989 Weed & Turfgrass Science Vol.3 No.1

발효계분비료시용이 들잔디 ( Zoysia Japonica Steud . ) 의 추계생장양상에 미치는 영향 ( Fall Performance of Korean Lawngrass ( Zoysia Japonica Steud . ) As Affected By Bio-fertilizer Application )

심재성,정원일 한국잡초학회·한국잔디학회 1990 Weed & Turfgrass Science Vol.4 No.2

질소시용, 예초 및 재식밀도가 한국잔디(Zoysia Japonica Steud)의 생육에 미치는 영향

심재성,Sim, Jae-Seong 배재대학교 자연과학연구소 1987 自然科學論文集 Vol.1 No.-

The increasing emphasis placed on the production of fine turf for lawns, golf courses, parks, and other recreational sites has led to many unsolved problems as to how such turf could be best established and mainteined. For this purpose, a series of experiments were conducted under con ditions of pot and field. The results obtained were as follows EXPERIMENT I. The effect of nitrogen fertilizer and clipping interval on Zoysia japonica. 1. Increasing the rate of nitrogen and frequent clipping increased tiller number of Zoysis japonica and the maximum number of tillers were obtained from 700 kg N application and freqnent clippings (10 days interval ) in October. Treatment of 350kg N with 10 days clipping interval increased tillers much more than those of 700 kgN with 20 and 30 days clipping intervals. 2. The average number of green leaves occurred during the growth period maximized by applying 700 kg N and clipping 10 days interval. 3. Increasing tiller numbers significantly decreased tops DM weight per tiller by clipping plants at interval of 10 and 20 days, irrespective of nitrogen applied, and with nil N, at the interval of 30 days. By applying 700 kg N, however, top DM weight per tiller increased as the number of tillers increased consistently. 4. The highest top DM weight was achieved from late August to early September by applying 350 and 700kgN. 5. During the growth period, differences in unders ( stolon + root ) DM weight occurred bynitrogen application were found between nil N and two applied nitrogen levels, whereas, at the same level of nitrogen applied, the increase in stolon DM weight enhanced by lengthening the clipping interval to 30 days. 6. Nitrogen efficiency to green leaves, stolon nodes and DM weight of root with high nitrogen was achieved as clipping interval was shortened. 7. By increasing fertilizer nitrogen rate applied, N content n the leaves and stems of Zoysiajaponica was increased. On the other hand, N content in root and stolon had little effect onfertilizer nitrogen, resulting in the lowest content among plant fractions. The largest content of N was recorded in leaves. Lengthening the clipping interval from 10 or 20 to 30 days tends to decrease the N content in the leaves and stems, whereas this trend did not appeared in stolon androot. 8. A positive correlations between N and K contents in tops and stolon were established andthus K content increased as N content in tops and stolon increased. Meanwhile, P content was not affected by N and clipping treatments. 9. Total soluble carbohydrate content in Zoysia japonica was largest in stolon and stem, and was reduced by increasing fertilizer nitrogen rate. Reduction in total soluble carbohydrate due to increased nitrogen rate was severer in the stolons and stems than in the leaves. 10. Increasing the rate of nitrogen applied increased the number of small and large vascular bundles in leaf blade, but shortened distance among the large vascular bundles. Shortening the clipping interval resulted in increase of the number of large vascular bundles but decrease ofdistance between large vascular bundles.EXPERIMENT II. Growth response of Zoysia japonica imposed by different plant densities. 1. Tiller numbers per unit area increased as plant density heightened. Differences in num ber between densities at higher densities than 120 D were of no significance. 2. Tiller numbers per clone attained by 110 days after transplanting were 126 at 40D,77 at 80D, 67 at 120D, 54 at 160D, and 41 at 200D. A decreasing trend of tiller numbers per clone with increasing density was noticable from 100 days after transplanting onwards. 3. During the growth period, the greatest number of green leaves per unit area were attainedin 90days after transplanting at 160D and 200D, and 100 days after transplanting at 40D, 80Dand 120D. Thus the period to reach the maximum green leaf number with the high plantdensity was likely to be earlier that with the low plant density. 4. Stolon growth up