• 한국전자통신학회논문지
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• 제8권11호
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• pp.1625-1632
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• 2013

본 논문에서는 지난 정부에서 추진된 제 3차 지방과학기술진흥정책('08-'12)의 일환으로 추진된 지역 연구활동에 있어서 기초분야 연구 성과물을 대상으로 16개 지역별로 연구 활동도 및 수준, 연구 생산성을 비교 분석 하였다. 각 지역별 연구 생산성의 비교는 연구 인프라(대학, 연구인력 등)의 비편재 요소를 고려하여 비교대상의 객관성을 고려하였다. 특히, 경남지역에서 산출된 대상기간 동안의 모든 기초분야 논문을 모집단으로하여 연구개발 지형도를 구현하고, 기 발표된 해당지역 미래전략산업과의 연계성을 고찰하였다. 따라서 미래전략산업과 연구지형에서 파악된 지역 역량이 집중된 기초분야와의 연계매트릭스를 통해 현재의 내재된 기초역량과 대응되는 미래기술 및 산업을 조망하였다.

• Journal of Biosystems Engineering
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• 제40권1호
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• pp.28-34
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• 2015

Purpose: This study aimed to install an RTK-GPS (Real Time Kinematic-Global Positioning System) and IMU (Inertial Measurement Unit) on a tractor used in a farm to measure positions, pasture topography, posture angles, and vibration accelerations, translate the information into maps using the GIS, analyze the characteristics of grass harvesting work, and establish new technologies and construction standards for pasture infrastructure improvement based on the analyzed data. Method: Tractor's roll, pitch, and yaw angles and vibration accelerations along the three axes during grass harvesting were measured and a GIS map prepared from the data. A VRS/RTK-GPS (MS750, Trimble, USA) tractor position measuring system and an IMU (JCS-7401A, JAE, JAPAN) tractor vibration acceleration measuring systems were mounted on top of a tractor and below the operator's seat to obtain acceleration in the direction of progression, transverse acceleration, and vertical acceleration at 10Hz. In addition, information on regions with bad workability was obtained from an operator performing grass harvesting and compared with information on changes in tractor posture angles and vibration acceleration. Results: Roll and pitch angles based on the y-axis, the direction of forward movements of tractor coordinate systems, changed by at least $9-13^{\circ}$ and $8-11^{\circ}$ respectively, leading to changes in working postures in the central and northern parts of the pasture that were designated as regions with bad workability during grass harvesting. These changes were larger than those in other regions. The synthesized vectors of the vibration accelerations along the y-axis, the x-axis (transverse direction), and the z-axis (vertical direction) were higher in the central and northwestern parts of the pasture at 3.0-4.5 m/s2 compared with other regions. Conclusions: The GIS map developed using information on posture angles and vibration accelerations by position in the pasture is considered sufficiently utilizable as data for selection of construction locations for pasture infrastructure improvement.