One of the serious damages of tremendous earthquakes is the damage to bridges as the major components in an    arterial road network, as relief operation is interrupted following cutting roads. Regardless of the magnitude and severity of an earthquake, other factors are also important in the strength and seismic performance of concrete bridges. Freezing-thawing cycles are among the factors, whi...

Skeletal muscle strength is known to decline with age (Fiatarone, 1993). As an intrinsic risk factor contributing to falls, lower extremity (LE) muscle strength is a critical component in limiting an elderly individual’s dynamic stability (Buchner, 1991; Brown , 1995). It has been reported that fallers demonstrated only 37% of the knee extensor strength, and 10% of the ankle plantar flexor stre...

To determine sex and race differences in muscle power per unit of muscle contraction, knee-extensor muscle power normalized for knee-extensor muscle volume was measured in 79 middle-aged and older adults (30 men and 49 women, age range 50-85 years). Results revealed that women displayed a 38% faster peak movement velocity than men and African Americans had a 14% lower peak movement velocity tha...

BACKGROUND Flow patterns in univentricular hearts may have clinical value. Therefore, it is our objective to asses and characterize vortex flow patterns with Fontan circulation in comparison with healthy controls. METHODS Twenty-three patients (8 Fontan and 15 normal patients) underwent echocardiography with intravenous contrast agent (Sonovue®) administration. Dedicated software was used to ...

While there is ample evidence that prosody and syntax mutually constrain each other, there is considerable uncertainty about the nature of this interface. Here we explore this issue with prepositional phrase attachment ambiguities (You can feelA the catB with the feather). Prior research has been motivated by two hypotheses: 1) The absolute boundary hypothesis (ABH) posits that attachment prefe...

Experimental and corresponding modeling studies have demonstrated a twofold to fivefold variation of intrinsic and synaptic parameters across animals, whereas functional output is maintained. These studies have led to the hypothesis that correlated, compensatory changes in particular parameters can at least partially explain the biological variability in parameters. Using the leech heartbeat ce...

Powder Injection Molding (PIM) is a precision manufacturing process used for production of advanced composites. Mixing of polymeric binder with metal powders, molding of feedstock, de-binding of brown parts and sintering of green samples are four main steps of this process. In the present study, the compounds containing multi-component binder system and aluminum/ nano-alumina (0-9 wt.%) powders...

Author: Jeong ho Choi Title: Fabrication and Compressive Yield Strength of Open Cell Corrugated Cellular Solids Institution: Embry-Riddle Aeronautical University Degree: Master of Science in Aerospace Engineering Year: 2005 This thesis studied the fabrication and compressive yield strength of# open cell corrugated cellular solids made from type 304 stainless steel. Test samples were made by cor...

While there is ample evidence that prosody and syntax mutually constrain each other, there is considerable uncertainty about the nature of this interface. Here we explore this issue with prepositional phrase attachment ambiguities (You can feelA the catB with the feather). Prior research has been motivated by two hypotheses: 1) The absolute boundary hypothesis (ABH) posits that attachment prefe...

A functional endurance test more specific to common occupational tasks is proposed for assessing back muscle capacity. The test involves static intermittent contractions (8-s work-rest cycles) using a predefined absolute load (90 Nm) across subjects. Since the test involved an absolute endurance task, it was hypothesized that performance would be influenced by both the strength and relative end...