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21A.216J / SP.622J / WGS.622J Dilemmas in Bio-Medical Ethics: Playing God or Doing Good?, Spring 2005
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Learning Object -
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Design and experimental investigation of a variable stiffness device
Published 2012“…There are many types of springs such as the leaf springs, compression springs, torsion springs etc. …”
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Final Year Project (FYP) -
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Strategic business alliances
Published 2008“…The motivation of the study springs from three major findings in our literature review, which shed light on the increasingly popular business form - strategic alliances. …”
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Final Year Project (FYP) -
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A bioinspired shape memory alloy based soft robotic system for deep-sea exploration
Published 2024“…Herein, “DeepStalk,” a soft robot designed for deep-sea exploration, is introduced, utilizing three shape memory alloys (SMAs) springs that mimic the three tentacle flexor muscles of deep-sea snails. …”
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Article -
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Design and development of a gravity-balanced device for the upper limb
Published 2012“…Here, the author uses the end point manipulator together with the ideal spring mechanism in the final design. A method to examine the functionality and effectiveness of the device using the Electromyography (EMG) technique has also been purposed in this paper.…”
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Final Year Project (FYP) -
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Design considerations for a mobile robot with end effector
Published 2019“…Through the analysis of different suspension system schemes, an independent suspension system is designed, which consists of a single longitudinal arm structure composed of springs and dampers. Fourthly, from the perspective of kinematics, the influence of the layout of the Mecanum wheel on the controllability of the mobile platform is calculated and analyzed, and the optimal "O" layout is determined. …”
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Thesis -
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Design a partial gravity-balanced upper limb exoskeleton
Published 2016“…Thus, a passive upper limb exoskeleton that consists of tension springs cable-pulley system is designed to counter the undesirable torques caused by the motors of the active exoskeleton. …”
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Final Year Project (FYP) -
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Reflection and refraction of SH waves at a combined interface
Published 2024“…By modelling the non-ideal interface as two thin membranes (in the scope of surface/interfacial elasticity) and a layer of springs between the two membranes, we established a combined model for the non-ideal interface. …”
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Journal Article -
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Process development for moving mechanical assemblies
Published 2008“…MEMS further extend the fabrication techniques developed for the integrated circuit industry to add mechanical elements such as beams, bridges, gears, diaphragms and springs to devices. Another distinction is that typically 3-D structures required for many MEMS applications (optical, mechanical, etc) create a need for nonstandard materials and non-polygonal geometries. …”
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Research Report -
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Robotic mirror finishing KPV (key process variable) optimization in the aerospace industry
Published 2015“…Materials such as Stainless Steel, employed for aerospace, have common applications in the fabrication of exhaust collectors, stacks and manifolds, structural and machined parts, springs, castings, tie rods, and control cables; among important factors and depending on the operating environment, light alloys and metals with mirror finish quality can be used for almost any part in aircrafts. …”
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Thesis -
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Drive-specific selection in multistable mechanical networks
Published 2024“…To do so, we numerically studied driven disordered mechanical networks of bistable springs possessing a vast number of stable configurations arising from the two stable rest lengths of each spring, thereby capturing the essential physical properties of a broad class of multistable systems. …”
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Modelling and Design of a Synergy-based Actuator for a Tendon-driven Soft Robotic Glove
Published 2016“…These results are used to guide design choices such as the power of the motor and the stiffness of the springs. The designed tendondriving unit comprises a DC motor which drives an array of spools dimensioned according to the first postural synergy, an electromechanical clutch to hold the hand in position during static posture and a feeder mechanism to avoid slacking of the tendons around the spool. …”
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Conference Paper -
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Detection of damaged supports under railway track based on frequency shift
Published 2017“…In this study, the rail-sleeper-ballast system is modeled as an Euler beam evenly supported by a series of springs, the stiffness of which are reduced when the fastener is loose or missing and the ballast under the sleepers is damaged. …”
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Journal Article -
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Bond and electronic relaxation dynamics of graphene, gold clusters, and water ice
Published 2013“…The hidden force opposing H2O compression behind the repulsion between nonbonding lone pair and bonding pair of hydrogen bond was revealed by theoretical analysis and molecular dynamics (MD) and ab initio MD calculations: i) the compression shortens and strengthens the intermolecular ‘‘O2- : H+/p’’ lone-pair and stretching phonons (<400 cm-1) are thus stiffened; ii) the repulsion pushes the bonding electron pair away from the H+/p and hence elongates and weakens the ‘‘H+/p–O2-” bond, making stretching phonons (>3000 cm-1) softened upon compression. Three springs model was proposed to build up the fundamental physical model of ‘‘O2- : H+/p–O2-” bond, in order to explain the complicated and anomalous behavior of water and ice. …”
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Thesis