We have developed a fiber-optic strainmeter to estimate velocities and attenuation at seismic frequencies. The two main advantages of the new system compared to strain gage techniques are the higher sensitivity to deformations (moduli) and phase lags (attenuation), and that estimates are representative of bulk values. While stress-strain measurements using strain gages or ultrasonic wave propag...

OBJECTIVE The purpose of this work was to develop an inexpensive phantom for simplified image quality assurance (IQA) together with algorithms for objective evaluation of image quality parameters and to integrate these components into an easy-to-use software package. This should help make quality control of dental cone beam computed tomography (CBCT) units accessible, easy, and affordable for a...

Objective(s):Chronic stress has been linked to the pathophysiology of mood disorders including anxiety and depression. In this study, we aimed to investigate the effect of troxerutin (TRX), as a flavonol, on stress-induced anxiety and depression.Materials and Methods: 56 animals were randomly divided into seven groups (n=8 per group) as follows: control, saline, TRX 50, TRX 150, TRX 300, Diazep...

Objectives . The paper aimed to review and analyze the results of works devoted numerical modeling experiments on interaction high-power ultraviolet (UV) laser pulses with condensed targets. were carried out at GARPUN, powerful KrF-laser facility P.N. Lebedev Physical Institute Russian Academy Sciences (Moscow). relevance research is related use excimer UV lasers as a driver for thermonuclear r...

Managed aquifer recharge is an efficient approach using surface water for groundwater recharge. However, soil clogging in the infiltration systems represents a critical problem that reduces efficiency of systems. In recent years, much research has been conducted to investigate subsurface and (cake). Cake prevents into table can drastically reduce rate. arid semi-arid areas, alternation humid dr...

It has been demonstrated repeatedly (Kirschvink & Kirschvink, 1989; Walker et al. 1989; Walker & Bitterman, 1985, 1989) that free-flying honeybees can be trained to respond to local anomalies in the geomagnetic field, but none of the training methods previously available has been sensitive enough for threshold studies. Here we report some determinations of intensity thresholds with a new and mo...

heresa-Marie Rhyne has lately been organizing efforts for a number of researchers to produce lists of top visualization problems, and I am flattered to be included. A recent Visualization Viewpoints column (see the July/August 2004 IEEE CG&A) featured Chris Johnson's excellent list, and now it's my turn. Since the May 1999 VisFiles column 1 already describes my list of the top ten problems that...

Recent improvements in digital C-arm radiographic units permit the safe and effective performance of cerebral angiography in the operating room. Intraoperative cerebral angiography, in turn, facilitates more effective aneurysm surgery and arteriovenous malformation therapy (1 , 2]. A variety of radiolucent carbon fiber head holders are now available for use in neurosurgical procedures that invo...

Abstract Aquifer storage and recovery systems using multiple partially penetrating wells (MPPW-ASR) can form a viable solution to the problem of freshwater buoyancy when brackish aquifers for storage. This study presents result series laboratory experiments that aimed at visualizing shape bodies injected into aquifer determining effect on efficiency (RE) several MPPW-ASR operational variables. ...