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Browsing ME Faculty Publications by Issue Date

Browsing ME Faculty Publications by Issue Date

Now showing items 1-20 of 33

Analytical and experimental thermal analysis of multiple heat sources in integrated semiconductor chips

Lindsted, R. D.; DiCicco, D. A. (IEEE, 1972-05)

Because of the complexity and interconnection density of today's integrated circuit chips, experimental measurement of individual transistor or diode junction temperatures under typical powered conditions has become ...
Obtaining maximum benefits from laboratory instruction

Graham, A.R. (IEEE, 1982-10-18)
An x-ray diffraction method for measuring thicknesses of epitaxial thin films

Chaudhuri, J.; Shah, S.; Harbison, J. P. (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 ...
Thickness measurement of thin films by x-ray absorption

Chaudhuri, J.; Shah, S. (IEEE, 1991-01)

An x-ray diffraction method for determining thicknesses of thin films grown on single-crystal substrates is presented. The equations, based on the kinematical theory of x-ray diffraction and the mosaic crystal model, were ...
Analysis of the strain profile in thin Au/Ni multilayers by x-ray diffraction

Chaudhuri, J.; Gondhalekar, V.; Jankowski, A. F. (IEEE, 1992-04-01)

The strain relaxation in Au/Ni multilayers was analyzed in detail using a dynamical theory of x-ray diffraction. The depth profile of strain in the modulation direction was determined by an iterative fitting of the calculated ...
Determination of thickness of multiple layer thin films by an x-ray-diffraction technique

Chaudhuri, J.; Hashmi, F. (IEEE, 1994-10-01)

An x-ray-diffraction method for determining the thickness of multiple layer thin films grown on a single-crystal substrate is presented. The equations, based on the kinematical theory of x-ray diffraction and the mosaic ...
X-ray double crystal characterization of single crystal epitaxial aluminum nitride thin films on sapphire, silicon carbide and silicon substrates

Chaudhuri, J.; Thokala, R.; Edgar, J. H.; Sywe, B. S. (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 ...
Biothermal modeling of post-cryoplasty atherosclerosis in restenotic patients

Hsieh, Men-Chi; Ravigururajan, T. S. (Springer, 2007-03)

Atherosclerosis is a leading cause of heart diseases and mortality around the world. Recently, cryoplasty has emerged as a potential alternative method to treat arterial atherosclerosis. Finite element heat transfer and ...
A ferrofluid guided system for the rapid separation of the non-magnetic particles in a microfluidic device

Asmatulu, Ramazan; Zhang, B; Nuraje, Nurxat (American Scientific Publishers, 2010-10)

A microfluidic device was fabricated via UV lithography technique to separate non-magnetic fluoresbrite carboxy microspheres (approximately 4.5 microm) in the pH 7 ferrofluids made of magnetite nanoparticles (approximately ...
Effect of thermoplastic toughening agent on glass transition temperature and cure kinetics of an epoxy prepreg

Sabzevari, Seyed Mostafa; Alavi-Soltani, Seyed R.; Minaie, Bob (Springer, 2011)

The isothermal time–temperature-transformation (TTT) cure diagram is developed in this article to investigate the effect of thermoplastic toughening agent on glass transition temperature (T g) and cure kinetics of an epoxy ...
Study of superhydrophobic electrospun nanocomposite fibers for energy systems

Asmatulu, Ramazan; Ceylan, Muhammet; Nuraje, Nurxat (American Chemical Society, 2011-01-18)

Polystyrene (PS) and polyvinyl chloride (PVC) fibers incorporated into TiO(2) nanoparticles and graphene nanoflakes were fabricated by an electrospinning technique, and then the surface morphology and superhydrophobicity ...
Semi-globally exponential tracking observer/controller for robots with joint hysteresis and without velocity measurement

Malagari, Srinivasulu; Driessen, Brian J. (Springer, 2011-04)

In this work, we consider a multiple degree of freedom robotic plant with joint hysteresis and without velocity measurement. We show, by construction, how a semi-globally exponential hysteresis observer/controller that ...
Use of a head component tester to evaluate the injury potential of an aircraft head-up display

DeWeese, Richard; Moorcroft, David; Thorbole, Chandrashekhar K.; Lankarani, Hamid M. (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 ...
Evaluation of the kinematics and injury potential to different sizes of pedestrians impacted by a utility vehicle with a frontal guard

Moradi, Rasoul; Lankarani, Hamid M. (Taylor & Francis, 2011-10-19)

A review of accident data reveals that in most pedestrian accidents, the head and lower extremity injuries are the predominant areas of injury to the pedestrian. The vehicle front geometry profile and stiffness, as well ...
Processing and properties of syntactic foams reinforced with carbon nanotubes

Guzman, Mauricio E.; Rodriguez, Alejandro Jose; Minaie, Bob; Violette, Melanie (Wiley-Blackwell, 2011-10-26)

This article presents synthesis and mechanical characterization of carbon nanotube (CNT)-reinforced syntactic foams. Following a dispersion approach (comprising ultrasonic, calendering, and vacuum centrifugal mixing), ...
Effects of UV degradation on surface hydrophobicity, crack, and thickness of MWCNT-based nanocomposite coatings

Asmatulu, Ramazan; Mahmud, Gazi Arif; Hille, C. A.; Misak, Heath Edward (Elsevier, 2011-11)

Surface degradation is a common problem in polymeric coatings when they are exposed to sunlight, moisture, and oxygen. In order to reduce their surface degradation, thus keeping the coatings' original properties, multi-wall ...
Cytotoxicity of release products from magnetic nanocomposites in targeted drug delivery

Wamocha, Humphrey Lusenaka; Misak, Heath Edward; Song, Z; Chu, H Y; Chen, Y Y; Asmatulu, Ramazan; Yang, Shang-You; Ho, J. C. (Sage Publications, 2011-11-09)

The efficacy of chemotherapy can be significantly improved if the therapeutic agent remains localized at the afflicted area and released at controlled rates. Such a targeted drug delivery can be achieved using magnetic ...
Tensile loading behavior of carbon nanotube wires

Sabelkin, V.; Misak, Heath Edward; Mall, S.; Asmatulu, Ramazan; Kladitis, P.E. (Elsevier, 2012-02-08)

The mechanical behavior of four carbon nanotube (CNT) wires, comprised of 1-yarn, 30-yarn, 60-yarn, and 100-yarn, was investigated under constant tension at two loading rates of 0.02 mm/sec and 2 mm/sec. Tests were conducted ...
Effect of dents on crack growth in aluminum alloy under constant-amplitude loading

Smith, Bert; Shivally, Praveen; Kumar, Brijesh (AMER INST AERONAUT ASTRONAUT, 2012-03)

The purpose of this study was to determine the effect of dents on the stable crack growth in 0.04-in.-thick 2024-T3 bare aluminum sheet. The test specimens were either pristine, dented, or reworked. The edge-cracked ...
Globally exponential controller/observer for tracking in robots without velocity measurement

Malagari, Srinivasulu; Driessen, Brian J. (Blackwell Publishing, 2012-03)

In this work, we present an observer and continuous controller for a multiple degree of freedom robotic plant without velocity measurement. For this considered plant, we propose and present an observer/controller that ...