Browsing Mechanical Engineering by Title
Now showing items 873-892 of 892
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Ultra high molecular weight polyethylene/graphitic nanoplatelet nanocomposites for energy storage applications
(Wichita State University, 2015-05)Graphene and graphene based nanomaterials are one of the most intriguing functional materials today because of their exceptional properties including unique electronic properties and high mass to strength ratio, etc. Their ... -
Uncertain gain and time-delay control of 300-kW SOFC-GT
(ASME, 2021-08-18)This paper presents a Proportional Integral Derivative (PID) controller design with the presence of an uncertain internal gain and additional time delay in the forward path of a 300 kW Solid Oxide Fuel Cell-Gas Turbine ... -
Understanding the physics of droplet electrocoalescence in a microfluidic device
(Wichita State University, 2021-04-02)This work details a parametric study for merging millimeter sized oil droplets, using an electric field, to simulate a mesoscale version of the microfluidic device. This was done to see if the physics of droplet merging ... -
Upgrading natural gas to value-added liquid products in aqueous systems under ambient conditions
(Wichita State University, 2017-07)A novel method of upgrading natural gas into value-added liquid products is presented, in which the methane is activated by a decoupled oxidation approach with metal-surface facilitation in aqueous system under ambient ... -
Upper limb rehabilitation and mobility assistance using robotic devices: a review
(ASME, 2019-11-25)This study is aimed at reviewing the various literature on the robot-based rehabilitation and the associated technical issues, augmentation, utilization, and safeties. During recent years, Biorobotics and Collaborative ... -
Use of a head component tester to evaluate the injury potential of an aircraft head-up display
(Taylor & Francis, 2011-08)Title 14 of the Code of Federal Regulations Part 25, 25.785 requires that seats and adjacent parts of the airplane be designed so that occupants will not suffer serious injury during an emergency landing as a result of ... -
Use of Euler parameters for the evaluation of ATD head trajectory from angular rate sensor and accelerometer data in aircraft seat certification testing
(Taylor & Francis, Inc, 2013-04-01)As part of the requirements of the US Federal regulations and the Society of Automotive Engineers (SAE) Aerospace Standard 8049B, when testing of the seat and adjacent parts of the aircraft may be impractical or unknown ... -
Use of SPH and Lagrangian meshing technique to assess damage area in bumper shields impacted by hypervelocity space debris
(2007-05)Space debris are objects in Earth’s orbit consisting of fragments of spent rocket stages, non-functional satellites, and parts like fasteners, paint chips and other waste materials in the lower earth orbits (LEO) (200 – ... -
Using graphene in coating materials to prevent UV degradation on advanced composite materials
(Wichita State University. Graduate School, 2010-04-23)The objective of the project presented here was to develop a new nanocomposite coating materials for protection of advanced fiber reinforced composite wind turbine blades against UV degradation and corrosion from weathering. ... -
Vehicle mass optimization for frontal structure using I-sight and study of weld parameterization for mass improvement
(American Society of Mechanical Engineers, 2015)In order to meet the Federal Motor Vehicle Safety Standards (FMVSS) requirement, the frontal structure of the vehicle needs to be design to maximize energy absorption in the presence powertrain design layout constraint. ... -
Vehicle suspension identification via algorithmic computation of state and design sensitivities
(American Society of Mechanical Engineers, 2015-02)It is common in mechanical simulation to not know the value of key system parameters. When the simulation is very sensitive to those design parameters and practical or budget limitations prevent the user from measuring the ... -
Vertical impact simulations of a full-size and simplified scaled models of an aircraft fuselage section
(American Society of Mechanical Engineers, 2016)Computer modeling and simulations on the crashworthiness of aircraft using validated models have provided insight into the energy-absorption characteristics of structures and have allowed parametric studies in the evaluation ... -
Vertical impact simulations of a full-size and simplified scaled models of an aircraft fuselage section
(Wichita State University, 2015-07)Computer simulations of aircraft crashworthiness of aircraft using validated models have provided insight into the nature of the energy-absorption of structures and allow parametric studies in evaluation of different crash ... -
Vibroacoustic parametric analysis of honeycomb composite fuselage for improved transmission loss
(Wichita State University, 2007-12)Much research has been done on reducing the noise level within a honeycomb composite fuselage used in aircraft. The honeycomb composite fuselage has shown much promise for structural rigidity, but to reduce cabin noise, ... -
Waste water treatment using food waste, clothes and algae briquettes after activation and carbonization processes
(Wichita State University, 2018-04-27)Clean drinking water is one of the biggest issues in the world, and will be the most studied subject along with food in the near future. Some of the fresh water sources are contaminated with Sulfur, Nitrogen, Phosphorous ... -
Water self-diffusivity confined in graphene nanogap using molecular dynamics simulations
(AIP Publishing, 2016-11-21)Fundamental understanding of water confined in graphene is crucial to optimally design and operate sustainable energy, water desalination, and bio-medical systems. However, the current understanding predominantly remains ... -
Wear behavior of aluminum matrix hybrid composites fabricated through friction stir welding process
(Elsevier Ltd. All rights reserved., 2016-10)Effects of friction stir processing (FSP) parameters and reinforcements on the wear behavior of 6061-T6 based hybrid composites were investigated. A mathematical formulation was derived to calculate the wear volume loss ... -
WS2 and MoS2 counter electrode materials for dye-sensitized solar cells
(John Wiley and Sons, 2020-09-23)Being confronted with the energy crisis and environmental problems, the exploration of clean and renewable energy materials as well as their devices are urgently demanded. Dye-sensitized solar cells (DSSCs) have attracted ... -
An x-ray diffraction method for measuring thicknesses of epitaxial thin films
(IEEE, 1989-12)An x-ray diffraction technique capable of measuring the thicknesses of epitaxial thin films with high precision is described. The advantages of this method are that it is nondestructive, straightforward, and rapidly ... -
X-ray double crystal characterization of single crystal epitaxial aluminum nitride thin films on sapphire, silicon carbide and silicon substrates
(IEEE, 1995-06-01)A detailed double crystal x-ray diffractometry study of epitaxial AlN thin films grown on sapphire, silicon and silicon carbide substrates was carried out to compare the structure, residual stress and defect concentration ...