The tapered implant-abutment interface is becoming more popular due to the mechanical reliability of retention it provides. Consequently, understanding the mechanical properties of the tapered interface with or without a screw at the bottom has been the subject of a considerable amount of studies involving experiments and finite element (FE) analysis. This paper focuses on the tapered implant-a...

We report quantum cascade laser (QCL) master-oscillator power-amplifiers (MOPAs) at 300 K reaching output power of 1.5 W for tapered devices and 0.9 W for untapered devices. The devices display single-longitudinal-mode emission at λ = 7.26 µm and single-transverse-mode emission at TM(00). The maximum amplification factor is 12 dB for the tapered devices.

The progressive reduction of velocitygradient to keep the flocculation rate as high as possible without breakage of flocsis called 'tapered flocculation'. In the present work, an attempt has been made to compare the performance of continuous tapered flocculationin conicaland cylindricaltanks. The efficiencyof conical flocculator was found to be higher than that of cylindrical flocculator, espec...

Today, fused deposition modeling (EMM), which is one of the additive manufacturing methods, can transform highlighted ideas into three-dimensional products after their designs. For this reason, it frequently preferred in many platforms, from applications aerospace and aviation to construction houses industry production parts as a hobby. In study, influence taper angle (ϴ=0, ϴ=0.25 ve ϴ=0.50) bo...

CLINICAL/SURGICAL PEARLS: 1. Determining the highest level of supportive femoral bone is important to place the taper into this bone. An extended trochanteric osteotomy is useful for removal of the old stem and facilitates placement of a relatively straight, tapered, fluted stem down a bowed femur, thus preventing anterior perforation of the stem through the anterior cortex. The intact diaphysi...

Adiabatically tapered holey fibers are shown to be potentially useful for guided-wave spot-size and numerical aperture conversion. Conditions for adiabaticity and design guidelines are provided in terms of the effective index model. We also present finite-difference time-domain calculations of down-tapered holey fiber, showing that large spot size conversion factors are obtainable with minimal ...

A spatial electrocutaneous display for sensory substitution is being designed. The display will be used to feed back sensory signals from transfemoral prostheses to amputees. The aim is to improve their walking performance. Two experiments have been performed to optimise the display parameters for dynamic, cyclic signals, which are common during walking. From these experiments it became clear t...

We examine similarities and differences between high-power parabolic pulse generation in an active medium and in tapered fiber with decreasing normal dispersion. Using a realistic tapered fiber design, we demonstrate the possibility of parabolic pulse generation without an external pump and determine the limitations of this approach.