Mechanical Engineering Scholarly Works: Recent submissions
Now showing items 61-80 of 140
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Effect of initiator on photopolymerization of acidic, aqueous dental model adhesives
(Wiley, 2009-09-15)This study evaluated different initiator systems in self-etching model adhesives, in which camphorquinone (CQ) or [3-(3,4-dimethyl-9-oxo-9H-thioxanthen-2-yloxy)-2-hydroxylpropy] trimethylammonium chloride (QTX) was employed ... -
Viscoelastic Properties of Collagen-Adhesive Composites under Water Saturated and Dry Conditions
(Wiley, 2015-02)To investigate the time and rate dependent mechanical properties of collagen-adhesive composites, creep and monotonic experiments are performed under dry and wet conditions. The composites are prepared by infiltration of ... -
Detection of cocaine induced rat brain activation by photoacoustic tomography
(Elsevier, 2011-02-15)Photoacoustic tomography (PAT) was used to detect the progressive changes on the cerebral cortex of Sprague Dawley rats after the administration of cocaine hydrochloride. Different concentrations (0, 2.5, and 5.0 mg per ... -
A novel device to measure power grip forces in squirrel monkeys
(Elsevier, 2009-05-15)Understanding the neural bases for grip force behaviors in both normal and neurologically impaired animals is imperative prior to improving treatments and therapeutic approaches. The present paper describes a novel device ... -
Adhesive/Dentin Interface: The Weak Link in the Composite Restoration
(Springer Verlag, 2010-06)Results from clinical studies suggest that more than half of the 166 million dental restorations that were placed in the United States in 2005 were replacements for failed restorations. This emphasis on replacement therapy ... -
Scanning Acoustic Microscopy Investigation of Frequency-Dependent Reflectance of Acid-Etched Human Dentin Using Homotopic Measurements
(Institute of Electrical and Electronics Engineers, 2011-03)Composite restorations in modern restorative dentistry rely on the bond formed in the adhesive-infiltrated acid-etched dentin. The physical characteristics of etched dentin are, therefore, of paramount interest. However, ... -
Lumbar Position Sense with Extreme Lumbar Angle
(Elsevier, 2008-05-06)Tasks involving flexed torso postures have a high incidence of low back injuries. Changes in the ability to sense and adequately control low back motion may play a role in these injuries. Previous studies examining position ... -
Compositional design and optimization of dentin adhesive with neutralization capability
(Elsevier, 2015-07-02)Objectives The objective of this work was to investigate the polymerization behavior, neutralization capability, and mechanical properties of dentin adhesive formulations with the addition of the tertiary amine co-monomer, ... -
Novice Lifters Exhibit A More Kyphotic Lifting Posture Than Experienced Lifters In Straight-Leg Lifting
(Elsevier, 2015-06-04)As torso flexion and repetitive lifting are known risk factors for low back pain and injury, it is important to investigate lifting techniques that might reduce injury during repetitive lifting. By normalizing lumbar posture ... -
EFFECTIVENESS OF SURGICAL RECONSTRUCTION TO RESTORE RADIOCARPAL JOINT MECHANICS AFTER SCAPHOLUNATE LIGAMENT INJURY. AN IN VIVO MODELING STUDY
(Elsevier, 2013-04-22)Disruption of the scapholunate ligament can cause a loss of normal scapholunate mechanics and eventually lead to osteoarthritis. Surgical reconstruction attempts to restore scapholunate relationship and shows improvement ... -
Water sorption and dynamic mechanical properties of dentin adhesives with a urethane-based multifunctional methacrylate monomer
(Elsevier, 2010-12-01)Objectives Our previous study showed the synthesis and characterization of a novel urethane-linked trimethacrylate monomer for use as a co-monomer in dentin adhesives. The objective of this work was to further investigate ... -
The influence of chemical structure on the properties in methacrylate-based dentin adhesives
(Elsevier, 2012-11-01)Objectives The objective of this study was to investigate the influence of the chemical structure of methacrylate monomers used in dentin adhesives on degree of conversion (DC), water sorption, and dynamic mechanical ... -
Synthesis and evaluation of novel siloxane-methacrylate monomers used as dentin adhesives
(Elsevier, 2015-09-01)Objectives The objectives of this study were to synthesize two new siloxane-methacrylate (SM) monomers for application in dentin adhesives and to investigate the influence of different functionality of the siloxane-containing ... -
Fatigue life prediction of dentin-adhesive interface using micromechanical stress analysis
(Elsevier, 2013-05-20)Objectives The objective of this work was to develop a methodology for the prediction of fatigue life of the dentin-adhesive (d-a) interface. Methods At the micro-scale, the d-a interface is composed of dissimilar ... -
Effect of Photo-Initiators on the In Vitro Performance of a Dentin Adhesive Exposed to Simulated Oral Environment
(Elsevier, 2010-04-01)Our previous study showed poor mechanical durability and nano-sized heterogeneities in cross-linked dentin adhesives cured in the presence of water. To further explore the relationship between nano-scale heterogeneities ... -
The effect of scoliotic deformity on spine kinematics in adolescents
(BioMed Central, 2016-10-25)Background While adolescent idiopathic scoliosis (AIS) produces well characterized deformation in spinal form, the effect on spinal function, namely mobility, is not well known. Better understanding of scoliotic spinal ... -
A More Complete Thermodynamic Framework For Fluent Continua
(Yildiz Technical University, 2015-05)Polar decomposition of the changing velocity gradient tensor in a deforming fluent continua into pure stretch rates and rates of rotations shows that a location and its neighboring locations can experience different rates ... -
A MORE COMPLETE THERMODYNAMIC FRAMEWORK FOR SOLID CONTINUA
(Yildiz Technical University, 2015-05)The Jacobian of deformation at a material point can be decomposed into the stretch tensor and the rotation tensor. Thus, varying Jacobians of deformation at the neighboring material points in the deforming volume of ... -
Evaluation of magnetic resonance imaging relaxation time in wrist cartilage with scapholunate ligament injury
(Sciedu Press, 2015-09)Objective: The overall goal of this research is to identify completely non-invasive in vivo markers of cartilage degeneration following wrist injury in order to facilitate assessment and treatment of wrist injuries and ... -
Combining the Classical and Lumped Diesel Particulate Filter Models
(SAE International, 2015-04-15)The growing presence of Spark Ignition Direct Injection (SIDI) engines along with the prevalence of direct injected Compression Ignition (CI) engines results in the requirement of Particulate Matter (PM) exhaust abatement. ...