A5041621696- Shape Memory Alloy Transformations
- Robotic Locomotion and Control
- Soft Robotics and Applications
- Control and Dynamics of Mobile Robots
- Greenhouse Technology and Climate Control
- Robotic Path Planning Algorithms
- Modular Robots and Swarm Intelligence
- Prosthetics and Rehabilitation Robotics
- Irrigation Practices and Water Management
- Engineering Applied Research
- Soil Mechanics and Vehicle Dynamics
- Advanced Materials and Mechanics
- Adaptive Control of Nonlinear Systems
- Vehicle Dynamics and Control Systems
- Plant Disease Management Techniques
- Plant Growth Enhancement Techniques
- Flowering Plant Growth and Cultivation
- Dynamics and Control of Mechanical Systems
- Robot Manipulation and Learning
- Robotics and Automated Systems
- Inertial Sensor and Navigation
- Postharvest Quality and Shelf Life Management
- Light effects on plants
- Robotic Mechanisms and Dynamics
- Transport Systems and Technology
Hanbat National University
2015-2025
Hanyang University
2022
Korea University of Science and Technology
2021
Korea Research Institute of Ships and Ocean Engineering
2016-2021
Global Core Research Center for Ships and Offshore Plants
2016-2021
Seoul National University
2006-2019
University of Utah
2003-2019
Sangmyung University
2010-2019
Korea Advanced Institute of Science and Technology
2016
Daegu Gyeongbuk Institute of Science and Technology
2009-2013
Human gait can be measured using a change in the joint angles value of lower limb joints during walking. Inverse kinematics (IK) human leg refers to calculating angle values from different positions locomotion. This article calculates real-time IK for three-link kinematic musculoskeletal model OpenSim. The provides analytical solution IK, which is quick and accurate. But, model-based approach very much dependent on morphology bipedal robot. existing robots are mainly planned walking flat...
This paper presents the design of a four omni-wheeled mobile robot consisting omni wheels, with each wheel connecting to separate DC motor. Additionally, presence telescopic leg linear RC servo actuator enables adapt various landscape changes, including obstacle overcoming. We have designed and manufactured physical prototype based on simulation results. The proposed can traverse in both vertical horizontal directions without altering its orientation, thereby enhancing stability during...
In this study, we present a novel Shape Memory Alloy (SMA)-actuated robotic hand which can provide higher level of dexterity and compliance. The mechanical structure actuation the are designed similar to musculoskeletal system human hand. SMAs used in manner where muscles ligaments applied our design, compliance manipulate soft, fragile, and/or rigid objects more adaptively naturally. particular, SMA actuators high power-to-weight ratio, is preferable for compact lighter design. Each finger...
The present study aimed to identify the factors that affect immediate (within 24 h after farrowing onset) postnatal piglet mortality in litters with hyperprolific sows, and investigate their associations behaviour of postpartum sows two different housing systems. A total 30 were housed in: (1) CRATE (n=15): crate closed (0.80×2.20 m) within a pen (2.50×1.70 m), (2) OPEN open (0.80×2.20×1.80 (2.50×2.40 provision 20 ls hay rack. 518 live born piglets, produced from used for data analyses...
Abstract: The objective of this research was to characterize the chemical properties tomato juice fermented with bifidobacterial species. Tomato prepared from fresh tomatoes and heated at 100 °C prior fermentation. Bifidobacterium breve , longum infantis were inoculated in kept 35 37 for up 6 h. Fructooligosaccharide (FOS) added analyses brix, total titratable acidity (TTA), pH, color, lycopene content conducted juices Heat treatment did not cause any significant changes TTA. Only redness...
주변 환경이 작물의 엽온에 미치는 영향을 규명하고, 포그분사 및 공기유동에 의한 엽온조절의 효과를 검토하 기 위하여 이류체 포그시스템 공기유동 장치를 설치 한 토마토 재배온실에서 다양한 실험조건하에 엽 온과 실내외 온습도, 일사량, 풍속 등의 환경을 계측하 여 분석하였다. 처리조건별 엽온 기온의 변화 를 분석한 결과, 무처리와 차광조건에서는 실내기온과 모두 외기온보다 상당히 높았으나, 조건 에서는 실내온도가 낮거나 약간 높은 정도를 유지하는 것으로 나타났고, 포그분사와 조건에 서는 엽온을 실내온도와 비슷하거나 더 낮게 유지할 수 있는 나타났다. 포차에 따른 기온차의 변화를 분석하였으며, 환경요인과 엽온과 의 관계를 도출하기 다중회귀분석을 실시하였다. 엽기온차에 대한 최적의 회귀방정식은 풍속, 포 차를 고려한 것으로써 RMS 오차는 0.8°C였다. 본 회귀방적식을 이용하여 온실의 풍속을 측정하면 추정할 있으며, 재배온실의 고온기 작물 스트레스 경감을 위한 환경조절에 활용할 있을...
In this study, novel modular shape memory alloy wire–based torsional actuators were designed and fabricated. These alloy–based provide rotational displacements. The mechanical thermal properties of a single module actuator characterized. Next, was configured by connecting modules in series. This can be used directly as soft or biologically inspired robot. Finally, the rolling motion transformation (soft robot) demonstrated with simple open-loop-based control scheme experimentally validating...
This paper presents a time invariant kinematic motion controller for wheeled mobile robots. Actuator capability, mechanical design, and traction forces governed by terrain features provide velocity curvature limitations that are used in the design of controller. A novel path manifold considers is introduced to desired shape convergence reference posture or trajectory. Lyapunov techniques then derive control law asymptotically converges robot an arbitrarily small neighborhood manifold....
This paper presents the design, modeling, and simulation of a compact electromagnetic linear actuator its application to motion mechanism. The proposed consists coil permanent magnet, can generate when an alternating current is applied coil. Its overall dimensions are 20 mm (W) × 15 (H) (D) while weight 7 g. be controlled in terms position using open-loop system. A mathematical model created for actuator, theoretical analysis performed examine dynamic model. results validated experimentally...
This study was conducted to enhance graft-take ratio and quality of grafted tomato seedlings by controlling temperature humidity during the healing acclimatization processes. Three levels (20℃, 23℃, 26℃) were carried out determine optimum on four rootstocks. In addition, twelve combinations three relative (70%, 80%, 90%) (17℃, 20℃, set up evaluate effect seedlings. other hand, five periods (H0, H1, H2, H3, H4: 90% for first 0, 1, 2, 3 10 days afterwards reduced 70%, respectively) examined...