The performance of systems involving a body in a fluid flow can be enhanced by manipulation of the body shape through flow control. Active flow control, the focus of this work, is achieved by energizing low-momentum regions at the wall by tangential blowing using air. One mechanism for blowing air into this region is through synthetic jets. They are devices that push air out from a fixed orific...

This study was designed to map the sites on the skin of the head, neck and thorax at which a clinical bone vibrator elicits auditory sensation. In 10 subjects with normal hearing, a bone vibrator delivering a 2000-Hz warble tone, at an intensity which was at least 5 dB below the intensity which elicited a sensation by air conduction over each site, was applied to 25 sites with an application fo...

Vibration threshold determinations were made by means of an electromagnetic vibrator at three sites (carpal, tibial, and tarsal), which were primarily selected for examining patients with polyneuropathy. Because of the vast variation demonstrated for both vibrator output and tissue damping, the thresholds were expressed in terms of amplitude of stimulator movement measured by means of an accele...

In order to improve the traditional methods of procyanidins extracting, ultrasonic-assisted filtration was used in the process of extracting proan-thocyanidin which was from membrane concentration of grape seed. Through the mechanism analysis of ultrasonic-assisted ultrafiltration, ultrasonic is able to alleviate the phenomenon of concentration polari-zation, so the efficiency of extracting pro...

This paper focuses on the influence of road weight captured by vibration vibratory vibrator energy excitation and optimization baseplate when there is instead direct contact between ground. For this purpose, based attenuation formula foundation surface, variation law obtained. The dynamics model considering constructed verified. effect system analyzed. By using topology method, optimized, compa...

The search for life on other planetary bodies is driven by our quest to determine if Earth unique with respect harboring life. In order answer this question, instrumentation suitable sensitivity required measure biosignatures. addition accurate measurements in-situ instruments, specialized sample acquisition and handling hardware maximize the scientific information obtained from an acquired sam...

in this paper, a numerical solution procedure is presented for the forced vibration of a piezoelectric nanowire under thermo-electro-mechanical loads based on the nonlocal elasticity theory within the framework of timoshenko beam theory. using hamilton’s principle, the nonlocal governing differential equations are derived. the governing equations and the related boundary conditions are discreti...

The paper considers the issues of calculating an electromagnetic vibrator designed to drive working bodies with reciprocating motion. purpose this work is refine mathematical model vibrators and, on basis, propose most rational parameters their design and modes use. Based initial magnetic system alternating current electromagnet, inductance inductive resistance electromagnet winding are determi...