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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 33 for “"Force transducer"”.
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Development of a medical bougie with integral force transducer
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1992.
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Development of a novel cell traction force transducer based on cholesteryl ester liquid crystals. Characterisation, quantification and evaluation of a cholesteryl ester liquid crystal based single cell force transducer system.
… or ability to detect localised cell traction forces (CTF) due to their non-linear viscous behaviour under shear rates. A newly developed cell traction force transducer system based on cholesteryl ester lyotropic liquid crystals (LCTFT) was developed to sense localised traction forces of human …
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Design of a multi-axis force transducer with applications in track and field
… is the design and implementation of a multi-axis force transducer to be integrated into a set of track and field starting blocks. The feedback from this transducer can be used by athletes and coaches to analyze race starts, with the intention of maximizing the runner's speed and power while …
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The Development and Use of an Intraoral Force Transducer in the Diagnosis and Treatment of Myasthenia Gravis
… this investigation was to fabricate an intraoral force transducer for measuring incisive biting force, and to test its usefulness in obtaining an objective and quantifiable evaluation of an "individual's myometric response during the standard diagnostic procedures. A cantilever beam force …
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A System for Measuring the Lift and Drag Forces of a Spinning Golf Ball Held Fixed Within a Wind Tunnel
… golf ball is attached, connected to a two-axis force transducer. Additionally, an automated data acquisition system was built for enhanced precision of measurements. Data for wind speeds up to 160 ft/s and rotational speeds up to 8,600 rpm were obtained and analyzed. The purpose of the designed …
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A simple force feedback accelerometer/seismometer based on a tuning fork displacement sensor
… fork as the displacement sensor in a simple force feedback seismometer. The research also includes the use of a second piezoelectric transducer as both the suspension system and the force transducer for the seismometer. A simple inertial seismometer model, based on a damped mass-spring …
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A Study of the Correlation of Incisive Force with Hand Grip Strength, Height, and Weight in Adult Males
Incisive force in a sample of 76 adult white males was tested for correlation with grip strength, height, and weight. A cantilever beam intraoral force transducer connected to a Techni-Rite Recorder with an SST Conditioner recorded the incisive forces. Grip strength was measured by the Collins Grip …
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Inline motion in flapping foils for improved force vectoring performance
… flapping foils to tightly vector and keep the force in the desired direction, hence improving locomotion and maneuvering. I employ Particle Image Velocimetry (PIV) to visualize the various wake patterns of these foil trajectories and a force transducer to evaluate their performance within a …
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A Device Compatible with Functional Magnetic Resonance Imaging for Assessing Brain Activity During a Finger Force Tracking Motor Task
… extend their fingers against an MRI-compatible force transducer, which was developed and tested in this project.This project verified that the finger force device was MRI compatible, providedaccurate force measurements with minimal baseline drift, and operated with sufficiently small time delay. …
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Mejoramiento de un sistema mecanico por control activo
… nent is visualized as a servo mechanism ora force transducer which recieves one of the variables of the system as an input and yields a control signal according to a prescribed law. The latter is fed back to the system in a specific manner. In this investigation, the input to the active …
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The effects of diethylstilbestrol on myometrial contractility in mice
… and gross contractility was measured with a force transducer under normal conditions and in the presence of oxytocin to mimic parturition. Histological preparations showed a significant increase in thickness of inner circular myometrium (p=0.002, [alpha]=0.006), but no significant change in …
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Development of an experimental system to determine the contribution of titin and collagen to passive stiffness of myocardium
… devices like piezoelectric translation stage, force transducer and high speed video sarcomere length measurement system was assembled to function in coordination with each other. In addition, protocols were written to perform controlled experiments on the cardiac muscle specimen under …
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Mechanotransduction at cell-cell contacts
… recent findings that cadherin complexes are also force transducers, and addresses whether differences in cadherin affinity also differentially alter cell mechanics. Studies discovered a significant difference between force transduction triggered by homophilic versus heterophilic cadherin bonds …
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Global vorticity shedding for a vanishing foil
… are capable of producing reasonably large forces on a body through simple potential flow estimations, aid that vortex formation times are small, with vortices fully formed nearly instantaneously in the flow. These features are promising for a force transducer using global vorticity shedding …
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Tire Performance Estimation Under Combined Slip and Empirical Parametrization of the Tire Rut on Dry Sand
… conduct tests under different conditions and a force transducer was used to capture the forces and moments generated in the tire hub. In addition to this, the tire footprint was captured with the help of a light-based 3-D scanner. Key parameters were defined in the 3D scan, and these parameters …
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A role for focal adhesion kinase in the contraction of gastric fundus smooth muscle evoked by cholinergic neurotransmission
… determined using standard myobath - isometric force transducer techniques and phosphorylated or total proteins determined by automated capillary electrophoresis and immunoblotting by Wes Simple Western. For the second project, we developed smooth muscle tissue in situ proximity ligation assay …
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Rough Surface Interactions of Micro/nano-Scale Contact Systems
… experimental measurements of dynamic interactive forces such as pull-in and pull-off force have been performed using a newly developed instrument, where two piezo-electric actuators were used to control normal and tangential motions of the contacting bodies and the interactive forces were measured …
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Investigating the molecular origins of biocompatibility : intermolecular interactions between human serum albumin and various chemically modified surfaces via high resolution force spectroscopy
… the constituent intermolecular interaction forces governing protein adhesion to biomaterials, using the technique of high resolution force spectroscopy. The model protein chosen for our study was human serum albumin (HSA), the smallest and most abundant blood protein in the human body, and …
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Acute and Chronic Effects of Artificial Rearing on Rat Genioglossus Muscle
… AR and dam reared (DR) rats were obtained with a force transducer and digital recording system through stimulation of the medial branch of the hypoglossal nerve. Following physiological experimentation, muscle samples were removed and stored for MHC analysis. Comparisons were made between AR and …
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Comparing Force and Ratio Progressions from the Behavioral Economic Unit Price Equation
… consumption under ratio progressions and force progressions tend to show differences in consumption across the two manipulations, even with unit price adjustments. These studies, however, failed to measure the broader operant class (i.e., subcriterion responses) and the force of individual …
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