The acoustic impedance at the diaphragm of an electroacoustic transducer can be modified using a range of active control strategies, amongst which is “direct impedance control”. This technique employs a combination of feedbacks, one on the acoustic pressure and the other on the diaphragm velocity, to the loudspeaker electric terminals, allowing significant modifications of the acoustic resonato...

BACKGROUND AND PURPOSE We previously reported on a randomized controlled trial (RCT) that examined the effect of adding tobramycin to bone cement after femoral stem migration. The present study examined femoral head penetration into both conventional and highly crosslinked polyethylene acetabular liners in the same group of RCT patients, with a minimum of 5 years of postoperative follow-up. P...

Compacted clay liners (CCLs) are the main materials used in waste disposal landfills due to their low permeability. In this study, the effect on the shear resistant of clays with inorganic salt solutions as permeate fluid was experimentally investigated. For this purpose, NaCl inorganic salt solution at concentrations of 2, 5, 10% and deionized water were used. Laboratory direct shear and Vane ...

The equations governing the motion of steel balls and their impact onto shell liners in industrial Semi-Autogenous Grinding (SAG) mills are derived in full details by the authors and are used in order to determine the effective design variables for optimizing the working conditions of the mill and to avoid severe impacts which lead to the breakage of SAG mill shell liners. These design vari...

1 Brain cholinesterase inhibition Toxicology one-liners are attached. All record numbers through 170860 were examined. ** indicates an acceptable study. Bold face indicates a possible adverse effect. ## indicates a study on file but not yet reviewed.

The optimal milking cluster should milk as gently possible to minimize the mechanical effect on teat tissue at an performance and quality. objective of this study was investigate influence liner shape (round vs. triangular) type ventilation (claw mouthpiece chamber; MPC) vacuum end in MPC. Our hypothesis that affect MPC vacuum. Six Holstein Friesian cows were milked twice daily over 12 d with a...

In the linear regime and in absence of mean flow, impedance perforated liners is driven by visco-thermal effects. this paper, two numerical models are employed for predicting these losses. The first model linearized compressible Navier–Stokes equations (LNSE), solved frequency domain. second Helmholtz equation with a boundary condition, accounting influence acoustic layers. These compared valid...

We made model fitting to the mid-to-far infrared spectral energy distributions (SEDs) for different categories of galaxies in the main extragalactic field of the Spitzer First Look Survey with the aid of spectroscopic information from the Sloan Digital Sky Survey. We find that the mid-to-far infrared SEDs of HII galaxies, mixture type galaxies and LINERs can be well fitted by the one-parameter ...

Reverse mutation assay: No data gap, no adverse effect In vitro mammalian cell assay: No data gap, possible adverse effect In vivo cytogenetics assay: No data gap, no adverse effect Neurotoxicity: No data gap, possible adverse effect † † Hen neurotoxicity study did not indicate distal delayed neuropathies, but acetylcholinesterase inhibition was flagged as " possible adverse effect " in several...

Prosthetic liners exist to improve amputee safety and comfort by adding a cushioning layer between the residual limb and the prosthetic socket. Many choices in liner technology are available, and clinicians often rely on personal intuition and experience to choose which liners are appropriate for which patients. The purpose of this study was to examine the literature to find what scientific evi...