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최진규,Hao Tian,하윤수 한국마린엔지니어링학회 2023 한국마린엔지니어링학회지 Vol.47 No.6
This study deals with object transportation using multiple mobile robots. Each robot is assumed to have a mechanism to couple with an object. The mechanism is operated by pushing and pulling forces without an actuator and becomes a free joint after coupling. The transportation operation is conducted as follows. The mobile robots first couple with the object using pushing motions. Then, they transport the object to the goal position. Finally, they decouple from the object using pulling motions after arriving at the destination. In this study, we focus on coupling and decoupling operations and discuss the configurations of the object and robots for coupling and decoupling. First, we formulate a kinematic model and static equilibrium equation for the object and n robots and then show that there exists a configuration, in which the robots can push and pull one another for coupling and decoupling while maintaining static equilibrium. Such a configuration is a singular configuration and is usually regarded as undesirable in terms of motion control. It is demonstrated through numerical examples using two, three, and four robots that the singular configuration is appropriate for coupling and decoupling operations.
崔珍奎 전북대학교 농업과학기술연구소 1984 農大論文集 Vol.15 No.-
This study was conducted to determine the height of cofferdam in the designs of small dams by using the computer program on the general process of the simulation of the timely storage elevation from the inflow and ontflow through the conduit. The obtained results are summarized as follows; 1. The volume of storage with input data was calculated in short time in accordance with various conditions of D.W.L. 2. The difference of max. water level and time between handed and computer operation was little, the more the time interval and water level are subdivided into small parts, the more the values of result are accurate. 3. This program can be applied on the case of open, channel as triangular and trapozoidal types besides the fore-mentioned types if only appending some subroutines.
가축분뇨 퇴비가 시비된 밭 표면유출수의 총질소와 총인의 유출 특성
최진규,손재권,이현정,김영주,Choi, Jin Kyu,Son, Jae Gwon,Lee, Hyun Jeong,Kim, Young Joo 한국농공학회 2012 한국농공학회논문집 Vol.54 No.6
This study was carried out to runoff characteristics in an upland livestock manure compost. Irrigation, runoff and water quality data in the upland were analyzed periodically from May to November in 2011. The observed amount of rainfall, irrigation, runoff for the experimental upland during the investigation period were 1,299.7 mm, 32.0 mm, and 340.7 mm, respectively. The concentrations of T-N in compost and non-compost upland during study period were ranged from 2.09 mg/L to 6.66 mg/L and from 1.99 mg/L to 6.01 mg/L, respectively. which was generally higher than the quality standard of agricultural water (1.0 mg/L). The concentrations of T-P in compost and non-compost upland during study period were ranged from 0.069 mg/L to 0.525 mg/L and from 0.018 mg/L to 0.152 mg/L, respectively. The runoff pollutants loadings of T-N and T-P in compost upland were 10.05 kg/ha and 0.56 kg/ha, respectively. The runoff pollutants loadings of T-N and T-P in non-compost upland were 9.09 kg/ha and 0.26 kg/ha, respectively. The runoff pollutants loadings in T-N and T-P from this study were much lower values than the pollutant loadings of T-N and T-P from the upland published by the others studies. Runoff pollution loadings due to the upland field in order to identify the characteristics of various crops, farming methods and a variety of targets taking into account regional characteristics by conducting continuous monitoring runoff load estimate will be required.
崔珍奎,李長春 전북대학교 농업과학기술연구소 1991 農大論文集 Vol.22 No.1
A finite element hydrologic model can Ire widely used the simulate the variation of direct runoff with any changes in land use or environmental conditions. The objectives of this study are to introduce the deterministic. distributed and event -oriented hydrologic watershed models using finite element method, and to test the applicabilities of the models to small watersheds. Of the models developed to be capable of considering a spatial variabilities of heterogeneous hydrologic characteristics to simulate storm runoff, SRAFEM and FESHM model were applied to two selected small watersheds, Yeonwha and Banweol watersheds, and compared in terms of total runoff volume, peak flow and peak time.
李榮大,崔珍奎 釜山工業大學校 1986 論文集 Vol.28 No.1
In recent years, Horton’s empirical geomorphologic laws and Strahler’s ordering scheme of drainage network are used to derive the hydrologic response in consideration of geomorphologic parameters and climatic characteristics. The purpose of this study is to give the basic informations fot the runoff analysis using the geomorphologic characteristics. In this study, Gosan river basins were selected and analyzed on the qtantitative characteristics related to the watershed area, stream number, channel length, from factor, relief, average altitude, stream density.
최진규,손재권,구자웅,윤광식,김영주,Choi Jin-kyu,Son Jae-gwon,Koo Ja-woong,Yoon Kwang-sik,Kim Young-ju 한국관개배수위원회 2000 한국관개배수논문집 Vol.7 No.1
The irrigation water supply and water quality from a pumping station were surveyed. Guiseok pumping station was selected as a monitoring site. Water level in irrigation canal was monitored continuously and water samples were taken and analyzed, periodical
회선 스위칭 ADM 상호 접속망의 성능 평가를 위한 시뮬레이션에 관한 연구
김현욱,최진규 明知大學校 産業技術硏究所 1986 産業技術硏究所論文集 Vol.5 No.-
The interconnection of large number of processors and other devices to form a large-scale parallel processing system is a research area receiving a great deal of attention. The interconnection network is the heart of parallel processing system. Simulation is important method for performance evaluation of interconnection network. In this paper, performance of circuit switching ADM(Augmented Data Manipulator) network is investigated with simulation model. In simulation model, four different conflict resolution strategies, regeneration, drop, hold and rerouting, are tried to see the performance difference. In simulation results, it is shown that rerouting strategy is better than drop strategy and drop strategy is better than hold strategy.
崔珍奎,金顯榮,李鎔直 전북대학교 농업과학기술연구소 1996 農大論文集 Vol.27 No.1
This study was carried out to examine the runoff characteristics through the paddy field area, and to provide the basic data for the estimation of design flood and unit drainage water of drainage improvement and farmland consolidation. The runoff model based on storage equation was applied to the experimental field area, and simulated results were compared to the measured discharge data at drain outlet and drain canal. According to the study, in case of outflow capacity of drain outlet used with Q= 1.771.LH3/2 drain outlet showed the runoff characteristics as a weir with 0.35m-0.42m width per 3,000m2 paddy area. And rainfall loss within paddy field was fairly high, peak flow of HEC-1 model was estimated relatively higher than that of the runoff model considering the lag effect by drain outlet.