نتایج جستجو برای: combined pneumatic
تعداد نتایج: 383243 فیلتر نتایج به سال:
Methods to estimate xylem embolism resistance generally rely on hydraulic measurements, which can be far from straightforward. Recently, a pneumatic method based on air flow measurements of terminal branch ends was proposed to construct vulnerability curves by linking the amount of air extracted from a branch with the degree of embolism. We applied this novel technique for 10 temperate tree spe...
We introduce a vacuum-powered soft pneumatic actuator (V-SPA) which leverages a single, shared vacuum power supply and enables complex soft robotic systems with multiple-DoF and diverse functions. In addition to actuation, other utilities enabled by vacuum pressure include gripping and stiffening through granular media jamming, as well as direct suction adhesion to smooth surfaces, for manipula...
TO THE EDITOR: We would like to appreciate the interest shown in our article by Dr. Joo. Our response to his queries is as follows: (1) The risk factors for prediction of recurrence after endoscopic pneumatic dilatation are young age, male sex, shorter duration of symptoms, low pre-treatment lower esophageal sphincter (LES) pressure and post therapy LES pressure above 10 mmHg. In the present st...
OBJECTIVES This in vitro study tested the influence of diverse stress simulation parameters on the fracture strength of all-ceramic three-unit fixed partial dentures (FPDs). METHODS All-ceramic FPDs made of Empress 2 (Ivoclar-Vivadent, FL) were exposed to thermal cycling and mechanical loading (TCML) with varying loading parameters such as chewing force (amount, frequency), thermal loading, l...
Comparison of pneumatic, ultrasonic and combination lithotripters in percutaneous nephrolithotripsy.
PURPOSE We aimed to compare the outcomes of pneumatic (PL), ultrasonic (UL) and combined (PL/UL) lithotripsy performed in percutaneous lithotripsy (PNL) according to success rates and stone clearence. MATERIALS AND METHODS The medical records of 512 patients treated with PNL between April 2010 and April 2013 were evaluated. Postoperative stone analysis revealed as calcium oxalate in 408 of th...
Radiotelemetric ambulatory 24 hour oesophageal pH measurement was carried out in 17 patients with symptomatic manometrically proven achalasia before and after pneumatic dilatation. Before dilatation an abnormally high percentage acid exposure time was present but typical episodes of gastro-oesophageal reflux occurred in only one patient. In nine patients who had a oesophageal food residue these...
•Based on a paper presented at the Second World Congress, ISPO, New York, 1977. Abstract Following a brief survey of the historic develop ment of pneumatic prostheses the actual prin ciples of prosthetic management in bilateral shoulder disarticulation or bilateral amelia are explained. The active functions are restricted to active prona t ion and supination, active gripping of the terminal d...
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