Numerical simulations are used to investigate soliton-like propagation in tapered silicon core optical fibers. The simulations are based on a realistic tapered structure with nanoscale core dimensions and a decreasing anomalous dispersion profile to compensate for the effects of linear and nonlinear loss. An intensity misfit parameter is used to establish the optimum taper dimensions that prese...

The aim of this study was to quantify typical training load and periodisation practices MMA athletes. competitors (n = 14; age 22.4 ± 4.4 years; body mass 71.3 7.7 kg; stature 171 ±9.9 cm) were observed during for 8 consecutive weeks without intervention. Seven athletes competitive bouts whilst the remaining 7 not. Daily duration, intensity (RPE), (sRPE segRPE), fatigue (short questionnaire fat...

as the middle-aged in the society as well as stress-induced cognitive disorders and dementia are increasing, sport is identified as a suitable solution to prevent disorders in central nervous system. the aim of the present study was to compare the effects of 8 weeks of strength and endurance training on bdnf. for this purpose, 150 male wistar rats participated in endurance training (running wit...

We present a scheme for the construction of coaxially equidistant multiple focal spots with identical intensity profiles for each individual focus and a predetermined number and spacing. To achieve this, the radiation field from an antenna is reversed and then gathered by high numerical aperture objective lenses. Radiation patterns from three types of line sources, i.e., the electric current, m...

OBJECTIVES An ongoing prospective study to investigate failing metal-on-metal hip prostheses was commenced at our centre in 2008. We report on the results of the analysis of the first consecutive 126 failed mated total hip prostheses from a single manufacturer. METHODS Analysis was carried out using highly accurate coordinate measuring to calculate volumetric and linear rates of the articular...

An axially corrugated horn antenna with an elliptically shaped taper is proposed for satellite communication applications. This structure is a good candidate for the feed of reflectors and also for improving the electrical properties of reflector antennas. A tapering method is used to justify the horizontal location of the corrugation profile which improves the electrical performance of the pre...

BACKGROUND Previous studies regarding modular head-neck taper corrosion were largely based on cobalt chrome (CoCr) alloy femoral heads. Less is known about head-neck taper corrosion with ceramic femoral heads. QUESTIONS/PURPOSES We asked (1) whether ceramic heads resulted in less taper corrosion than CoCr heads; (2) what device and patient factors influence taper fretting corrosion; and (3) w...