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Now showing items 5607-5626 of 9089
Measuring Visual Change Detection in Specific Phobia
(2010-05-18)
The utility afforded from cognitive tasks in research concerning attentional bias and anxiety is well documented; however, whether it extends to research concerning specific phobia is uncertain. Often, the connection between ...
Measuring, Evaluating, and Describing Pile-Up and Sink-In During Nanoindentation of Thin Films on Substrates
(2015-12-10)
Nanoindentation is a valuable tool for extracting material properties such as elastic modulus and hardness at the nanoscale. Knowing material properties at this scale enhances the use of thin films in protective coatings ...
Meat Quality Assessment of Pork Fed Poultry Fat, Flaxseed Oil, and Supplemented with Vitamin E
(2017-04-25)
The objective of this research is to understand carcass and meat quality characteristics of pigs fed a combination of poultry fat, flaxseed oil, and supplemented with vitamin E. It is hypothesized that certain combinations ...
Mechanical and chemical activation of CaO-based sorbents for post-combustion CO2 capture at high temperature
(2022-05-02)
The Calcium Looping (CaL) process is one of the most efficient technology for post-combustion CO2 capture. The raw material for CO2 adsorption is CaO which can be derived from limestone. The abundance and high capacity of ...
Mechanical and Microstructural Behavior Evolution of Lead Free Solder Materials Under Different Thermal Exposures
(2023-05-01)
With the growth of electronic packaging industries, ranging from automobile to hand-held products, reliability is a major concern. Also, to keep pace with the increasing demand of end users for integration, miniaturization, ...
Mechanical and Optical Characterization of a Tissue Surrogate Polymer Gel
(2016-05-18)
Hydrogels and polymer gels are widely used for simulating the mechanical response of human or animal tissue to understand the effects of trauma on organs, design body armor, detect tumors robotically, simulate surgical ...
Mechanical Behavior and Microstructural Evolution of Lead Free Solder Alloys in Harsh Environment Applications
(2019-07-10)
Solder joints provide mechanical support, electrical and thermal interconnection between packaging levels in microelectronics assembly systems. Proper functioning of these interconnections and the reliability of the ...
Mechanical Behavior and Microstructural Evolution of SAC and SAC+Bi Solder Alloys in Harsh Environment Applications
(2021-08-16)
The microstructure and mechanical properties of lead free solder joints in electronic assemblies are constantly evolving when exposed to isothermal aging. These changes lead to dramatic reductions in reliability of lead ...
Mechanical Characterization and Aging Induced Evolution of Cyclic Properties and Microstructure of Lead-Free Solder Materials
(2020-04-29)
Solder joints in electronic assemblies are often subjected to cyclic (positive/negative) mechanical strains and stresses. Such exposures can occur in variable temperature application environments or during accelerated life ...
Mechanical Characterization of the Braided Composite Yarn and Bond Strength Evaluation of the Joints of the Open-Architecture Composite Structure (O-ACS)
(2014-07-11)
Open-architecture composite structures (O-ACS) can be seen as structures, optimized for weight, meant to be used as beams or columns, in applications where the stiffness to weight ratio of the structure governs the design. ...
Mechanical Properties and Microstructure Investigation of Sn-Ag-Cu Lead Free Solder for Electronic Package Applications
(2005-08-15)
While the electronics industry appears to be focusing on Sn-Ag-Cu as the alloy of choice for lead free electronics assembly, the exact Composition varies by geographic region, supplier and user. Add to that dissolved copper ...
Mechanical Properties of Micro Alloyed SAC Lead-Free Solder with Bi For Future Electronics
(2019-12-02)
The most common solder alloy SAC305 has a significant reliability issue especially after aging. In addition to aging, multiple factors can contribute to the early failure of the solder joint.
Research has shown that shear ...
Mechanical Properties of Near-Frictionless Hydrogenated Amorphous Carbon Freestanding Thin Films for MEMS Devices
(2005-12-15)
Diamond-Like carbon (DLC) films with a mixture of sp2 and sp3 hybridizations have exhibited excellent properties such as chemical stability, wear resistance, optical transparency and are now widely used as protective ...
Mechanical Vibration Effects on Enhanced Melting of Phase Change Materials within Latent Heat Thermal Energy Storage Devices Under Different Container Orientations
(2023-12-04)
Phase change materials (PCM) are playing a bigger role in our daily life, from cooling of
electric vehicle batteries to spacecrafts in the outer space. Research on PCM melting behavior and
system performance has generally ...
Mechanism and Kinetics of One-electron Oxidation of Methanesulfinate and Two-electron Oxidation of Thiols and Disulfides
(2022-05-04)
One-electron oxidation of alkylsulfinic acids has been of great interest for years as the reaction mechanisms are known to be quite elusive. We herein investigate the kinetics and mechanism of oxidation of an alkylsulfinic ...
Mechanism of the Outer-sphere Oxidation of Aqueous L-cysteine and of Iodide in Acetonitrile by a Series of Iron(III) Complexes
(2007-05-15)
Trace copper catalysis was observed in the oxidation of L-cysteine by [Fe(bpy)2(CN)2]+ and [Fe(bpy)(CN)4]- in anaerobic aqueous solution. The copper catalysis was effectively inhibited with the addition of dipicolinate ...
Mechanisms and Evolution of Disease Resistance in Birds
(2017-01-04)
Disease outbreaks in wildlife, agricultural animals, and humans have increased in both frequency and magnitude in recent decades, refocusing research efforts on understanding the factors that influence disease emergence. ...
Mechanisms and Kinetics of Proton-Coupled Electron-Transfer Oxidation of Phenols
(2011-11-28)
The kinetics of the aqueous oxidation of phenol by a deficiency of [IrCl6]2– has been investigated. The reaction initially produces [IrCl6]3– and phenoxyl radicals. The inhibition caused by [IrCl6]3– can be prevented by ...
Mechanisms and Performance Measures in Mastery-Based Incremental Repeated Acquisition: Behavioral and Pharmacological Analyses
(2009-09-10)
Pharmacological and behavioral determinants of learning were examined using a mastery-based incremental repeated acquisition procedure. A 60-minute session began with a one link chain (single lever-press) that incremented ...
Mechanisms Mediating Antidiabetic Effects of Serviceberry extracts, Curcumin, and Stilbenes
(2012-05-07)
Diabetes mellitus is a group of metabolic diseases characterized by hyperglycemia in which homeostasis of carbohydrate and lipid metabolism is improperly regulated by insulin. Hippocrates (460-377 B.C), said “Let food be ...