BACKGROUND In the general population, frailty, a late stage of the aging process, predicts mortality. We investigated whether manifesting a previously defined frailty-related phenotype (FRP) before initiating highly active antiretroviral therapy (HAART) affects the likelihood of developing clinical AIDS or mortality after HAART initiation. METHODS Among 596 HIV-infected men in the Multicenter...

The present study concerns compressive and flexural constitutive models incorporated into an isoparametric beam finite element scheme for fiber reinforced polymer (FRP) and concrete composites, using their multi-axial constitutive behavior. The constitutive behavior of concrete was treated in triaxial stress states as an orthotropic hypoelasticity-based formulation to determine the confinement ...

T he use of fiber reinforced polymers (FRP) for reinforcement of aging and deteriorating concrete members has emerged as a viable and costeffective alternative to traditional repair and strengthening techniques. Their use enables upgrading of deficient structures to meet today’s design standards (Crasto et al., 1996; Myers et al., 2000). The loadcarrying ability of structures such as beams and ...

Frequency resolving power (FRP) of hearing was studied in bottlenose dolphins in behavioral experiments (go/no-go paradigm) using rippled noise with a phase-reversal test. The rippled noise has a frequency spectrum with periodically alternating peaks and troughs (ripples) which is a convenient spectrum pattern to test frequency resolution. The principle of the phase-reversal test was to find th...

The use of Fiber Reinforced Polymer (FRP) reinforcement is a practical alternative to conventional steel rebars in concrete structures subjected to aggressive environments. The solution is attractive for bridge deck and rail applications, as it eliminates corrosion of the steel reinforcement, which is the major instrument of degradation. Due to the peculiar physical and mechanical characteristi...

t h r o u g h SEM and SAM Measurement of the fiber orientation is one of the most important inspection items 2.1 Orientation of the Molding Cross to examine the shape and strength of the Section through SEM products[ll. The 3D fiber orientation has been measured by analyzing the elliptical marks of the cross section of the fiber from the photograph of the FRP. In these methods, i t is not possi...

* Corresponding author. Abstract – Recent improvements in sensor capabilities have enabled fire characterization from satellites. Instantaneous intensities of active fires have been characterized by the Fire Radiative Power (FRP), while burn severity has been assessed from the evaluation of Normalized Burn Ratios (NBR) derived from preand post-fire multispectral imagery. MODIS on the Terra and ...

[Purpose] The purpose of this study was to investigate the effect of the timing of leg support elevation on the horizontal force acting on the buttocks in a reclining wheelchair. [Subjects and Methods] The participants were 17 healthy men. Two experimental conditions were tested: the leg-down and leg-up conditions. The back support was reclined at increasing angles, from the initial upright pos...

Fiber reinforced polymer (FRP) composites offer very high strength-to-weight and stiffness-to-weight ratios. As a result, the aerospace industry is making a major effort to incorporate an increasing number of composite materials into various components and structures. However, machining of FRP composites is one of the most difficult and least understood areas in manufacturing technology. Thus, ...

The use of fiber reinforced polymer (FRP) bars in reinforced concrete members enhances corrosion resistance when compared to traditional steel reinforcing bars. Although there is ample research available on the behavior of FRP bars and concrete members reinforced with FRP bars under elevated temperatures (due to fire), there is little published information available on their post-fire residual ...