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이효,임한욱 江原大學校 産業技術硏究所 2001 産業技術硏究 Vol.21 No.A
Blast-vibration tests were carried out to determine the effects of the number of free face on the level of blast vibration. Frequency chatacteristics were also examined by using FFT analysis. To check the effects of the number of free face, charge weight per delay, drilling length, burden and space were applied uniformly and the number of free face was only changed from one to four. The results from tests were checked by regression analysis and K-value.
무선 센서 네트워크를 위한 에너지 인식 하이브리드 클러스터링
한욱표,김승남,이제현,정영준 강원대학교 정보통신연구소 2007 정보통신논문지 Vol.11 No.-
Many studies for the efficient utilization of node energy in wireless sensor networks has been done because sensor nodes operate with limited power based on battery. Existing cluster structure has problem that energy consumption is unbalanced because energy consumption is concentrated in cluster head. And in case distribution density of sensor node is low, the energy efficiency is declined because only a few members exist in cluster. In this paper, we submit an hybrid clustering mechanism to construct topology by mixing cluster structure and mesh structure selectively according to distribution of sensor nodes to improve energy efficiency. And we attempt to derive balanced energy consumption by selecting cluster head considering residual energy of each node. The performance of the proposed mechanism has been examined and evaluated with the NS-2 simulator in terms of network lifetime and end-to-end delay.
이선규,한욱상 國立金烏工科大學校附設生産技術硏究所 1994 産業技術開發硏究 Vol.10 No.-
The purpose of this study, in the view point of accomplishing salesperson's management effectively, is to find the relationship between salesperson's performance factor(Motivation, Role perception, Ability) and turnover intention. The lowering of the turnover rate through this finding can reduce sales cost or marketing cost including the salesperson's education/training cost. This conceptual research model is based on theoretical background by Walker, Churchill, Ford(1977) model and Jackofsky(1984) model.
이재익,박정하,김준영,조영완,진한영,강명주,정은욱,박석주,양성연 인제대학교 2006 仁濟醫學 Vol.27 No.-
Anisakiasis refers to parasitic infestation by nematode larvae that belongs to the subfamily Anisakinae, and this condition is seen in people who eat inadequately prepared or raw salt-water fish. While gastric anisakiasis is commonly diagnosed by endoscopic technique, intestinal anisakiasis is rare because it is less common and the clinical and radiologic features are poorly understood. The authors report a case of human anisakiasis involving the ileocecal valve in 62-year-old man who had the history of eating raw cuttlefish.
Ad-hoc Network에서 동적 임계값을 이용한 부하균등 라우팅 프로토콜
이춘재,한욱표,정영준 강원대학교 정보통신연구소 2004 정보통신논문지 Vol.8 No.-
The bad balancing of a routing protocol in an ad-hoc network has been one of critical issues in perfomance determination due to the trade-off of a mobility and a transmission delay. SLAHSimpIe Load-balancing Ad-hoc routing Protocol) has considered the load balancing but it is lack of flexibiliy in traffc congestion and topology changes. In this paper, we present a load balancing routing protocol in the ad hoc nebyork, which uses dynamic thresholds for traffic congestion control and for adaptation of mobility and network changes. The proposed protoco1 has been simulated with GloMoSm and compared with ADOV, DSR, and SLASP, in respect with mobility, delay, and packet transmission.
이용주,최혜자,윤석권,김한욱,임철완 대한피부과학회 2004 大韓皮膚科學會誌 Vol.42 No.3
Basal cell carcinoma is the most common malignant skin cancer in Korea. The lesions are most frequently found in the head and neck region. But penile basal cell carcinoma is very rare and there are only 29 other reported cases. We report a rare case of basal cell carcinoma of the penis in a 76-year-old man. He had a well circumscribed 1.3㎝×1.3㎝ thick scaly plaque with central ulcer in right penile root area for 4 years. The lesion was completely excised and no recurrence for four months. (Korean J Dermatol 2004;42(3):350~352)
암반내 A.E 계측 자료의 처리를 위한 신경 회로망의 적용성 연구
이상은,임한욱 강원대학교 산업기술연구소 2000 産業技術硏究 Vol.20 No.A
To determine the source location of acoustic emission in rock, the least square method has been used until lately but it needs much time and efforts. In this study, neural network system is applied to above model instead of least square method. This system has twenty seven input processing elements and three output processing element. The source locations calculated by above two methods are similarly concordant. The new method using neural network system is relatively simple and easy for calculating source location compared with traditional method.
林漢旭,金雄秀,李慶雲 江原大學校 産業技術硏究所 1985 産業技術硏究 Vol.5 No.-
The blast-induced ground vibrations is one of the most important factors which is considered to design blasting patterns in urban excavation. To compare with vibration level of different explosives, peak particle velocity of each explosive was measured. The results are summerized as follows. 1. Among the three kinds of explosives, the largest vibration was obtained from the gelatine dynamite, while the smallest was blasting of ammonium nitrate. 2. The vibration levels of ammonim nitrate and slurry explosive were smaller about 35%, 20% respectively than that of gelatine dynamite.
터널 발파에서 이완영역 감소를 위한 제어발파 기술 연구
임한욱,이영호 강원대학교 부설 석재복합신소재 제품연구센터 2003 석재연 논문집 Vol.8 No.-
터널, 도로 및 철도 개설시 낙석이나 암반 사면의 미끌림을 방지하고 과다한 보수작업을 피하기 위해서는 굴착시 원지반을 손상시키지 않도록 시공하는게 중요하다. 특히 지질조건이 다른 지층에서 손상영역을 감소시키기 위해서는 세밀한 발파가 신중히 시행되어야한다. 본 연구에서는 손상영역을 평가하기 위하여 발파진동을 계측하였다. 총 37회의 진동을 계측하고 이를 바탕으로 진동 추정식을 도출하였다. 손상영역은 발파진동식과 암반의 물성 특히 인장강도와 탄성파 전파 속도 등으로부터 구할 수 있다. 지발당 장약량 2.1375kg로 심빼기발파를 실시하는 경우 본 연구에서 구한 손상영역은 약 1.23m로 예상된다. In tunneling, road and rail road cuts, it is of the most importance that the remaining rock is of high quality in order to avoid rock falls, rock slides and excessive maintenance work. Carefully executed blasting will minimize the damage zone even in severe geological conditions. In this study, blasting ground vibration monitorings are adopted to estimate damage zone in road tunnel. A total of 37 blasts were recorded and empirical particle velocity equation was obtained. The damage zone can be estimated by relationships between vibration velocity(Ⅴ) and associated tensile stress(o). The damage zone assumes to be 1.23m with explosive(2.1375kg) at center cut in tunnel blasting.