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Articles 61 - 67 of 67
Full-Text Articles in Social and Behavioral Sciences
A Λ-Cut And Goal-Programming-Based Algorithm For Fuzzy-Linear Multiple-Objective Bilevel Optimization, Ya Gao, Guangquan Zhang, Jun Ma, Jie Lu
A Λ-Cut And Goal-Programming-Based Algorithm For Fuzzy-Linear Multiple-Objective Bilevel Optimization, Ya Gao, Guangquan Zhang, Jun Ma, Jie Lu
Faculty of Engineering and Information Sciences - Papers: Part A
Bilevel-programming techniques are developed to handle decentralized problems with two-level decision makers, which are leaders and followers, who may have more than one objective to achieve. This paper proposes a λ-cut and goal-programming-based algorithm to solve fuzzy-linear multiple-objective bilevel (FLMOB) decision problems. First, based on the definition of a distance measure between two fuzzy vectors using λ-cut, a fuzzy-linear bilevel goal (FLBG) model is formatted, and related theorems are proved. Then, using a λ-cut for fuzzy coefficients and a goal-programming strategy for multiple objectives, a λ-cut and goal-programming-based algorithm to solve FLMOB decision problems is presented. A case study for …
Coal Properties And Mine Operational Factors That Impact Gas Drainage, Dennis J. Black, Naj Aziz
Coal Properties And Mine Operational Factors That Impact Gas Drainage, Dennis J. Black, Naj Aziz
Faculty of Engineering and Information Sciences - Papers: Part B
Advances in coal production over the last 20 years have led to an increase in coal mine gas emissions. These gas emissions, if not effectively managed, may exceed the diluting capacity of the mine’s ventilation system resulting in gas concentrations in excess of statutory limits and the presence of an unsafe condition within the mine. Where such conditions exist it is typical for production to be slowed or stopped until such time as the rate of gas emission is effectively controlled and managed. This paper discusses the findings of a research project based on an underground mine operating in the …
Design Of A Flexural Transmission For A Dexterous Telesurgical Robot For Throat And Upper Airway: A Preliminary Result, Chin-Hsing Kuo, Russell H. Taylor, Jian S. Dai, I. Iordachita
Design Of A Flexural Transmission For A Dexterous Telesurgical Robot For Throat And Upper Airway: A Preliminary Result, Chin-Hsing Kuo, Russell H. Taylor, Jian S. Dai, I. Iordachita
Faculty of Engineering and Information Sciences - Papers: Part B
No abstract provided.
Development Of A Family Of High Strength Low Carbon Microalloyed Ultra-Thin Cast Strip Products Produced By The Castrip® Process, Chris R. Killmore, Kristin R. Carpenter, Harold R. Kaul, James G. Williams, Daniel G. Edelman, Peter C. Campbell, Walter N. Blejde
Development Of A Family Of High Strength Low Carbon Microalloyed Ultra-Thin Cast Strip Products Produced By The Castrip® Process, Chris R. Killmore, Kristin R. Carpenter, Harold R. Kaul, James G. Williams, Daniel G. Edelman, Peter C. Campbell, Walter N. Blejde
Faculty of Engineering and Information Sciences - Papers: Part B
The manufacture of high strength strip products in strip thicknesses less than 1.5mm is very challenging for the conventional hot and cold rolled processing routes. A range of Nb and Nb/V microalloyed steels have been successfully strip cast by the CASTRIP process enabling the development of a range of high strength Ultra-Thin Cast Strip (UCS) products. It was found that the CASTRIP process fully exploits the strengthening potential of the low C-Mn-Nb-(V) alloy design system. Substantial strengthening by microstructural hardening was provided by Nb. Retention of Nb and V in solid solution in hot rolled coils enabled further strengthening by …
Inverse Optimal Control As A Tool To Understand Human Yoyo Playing, Katja Mombaur, Manish Sreenivasa
Inverse Optimal Control As A Tool To Understand Human Yoyo Playing, Katja Mombaur, Manish Sreenivasa
Faculty of Engineering and Information Sciences - Papers: Part B
This paper presents an inverse optimal control approach to identify objective functions of human motion from motion capture measurements. We apply it to analyze human yoyo playing. Yoyo playing may seem easy to us to learn but it is a challenging problem from a mechanical point of view involving a hybrid dynamics model. We recorded vertical yoyo playing of humans measuring yoyo height and rotation angle as well as the corresponding hand motions. Results of inverse optimal control are presented showing a mixed criterion of cycle time and terms depending on yoyo and hand acceleration and velocity.
On Using Human Movement Invariants To Generate Target-Driven Anthropomorphic Locomotion, Manish Sreenivasa, Philippe Souères, Jean-Paul Laumond
On Using Human Movement Invariants To Generate Target-Driven Anthropomorphic Locomotion, Manish Sreenivasa, Philippe Souères, Jean-Paul Laumond
Faculty of Engineering and Information Sciences - Papers: Part B
We present a method for generating anthropomorphic motion by studying `invariants' in human movements and applying them as kinematic tasks. We recorded whole-body motion of 14 participants during a walking and grasping task and performed a detailed analysis in order to synthesize the stereotypy in human motion as rules. We propose an algorithm that produces the key parameters of motion taking into account the knowledge from human movement, and the limitations of the anthropomorph. We generalize our results such that we can create motion parameters for objects which were not in the original protocol. The algorithmic output is applied in …
On Real-Time Whole-Body Human To Humanoid Motion Transfer, Francisco-Javier Montecillo-Puente, Manish Sreenivasa, Jean-Paul Laumond
On Real-Time Whole-Body Human To Humanoid Motion Transfer, Francisco-Javier Montecillo-Puente, Manish Sreenivasa, Jean-Paul Laumond
Faculty of Engineering and Information Sciences - Papers: Part B
We present a framework for online imitation of human motion by the humanoid robot HRP-2. We introduce a representation of human motion, the humanoid-Normalized model, and a Center of Mass (CoM) anticipation model to prepare the robot in case the human lifts his/her foot. Our proposed motion representation codifies operational space and geometric information. Whole body robot motion is computed using a task-based prioritized inverse kinematics solver. By setting the human motion model as the target, and giving the maintenance of robot CoM a high priority, we can achieve a large range of motion imitation. We present two scenarios of …