EFFECT OF THUMB ABDUCTION AND ADDUCTION ON HYDRODYAMIC CHARACTERISTICS OF A MODEL OF THE HUMAN HAND

The purpose of this study was to compare hydrodynamic characteristics of human hand models with the thumb abducted and the thumb adducted using pressure differential and flow visualization techniques. Two different models of an adult man's right hand (Model A, the hand with abducted thumb; Model B, the hand with thumb adducted) were made with polyester resin. The magnitudes of pressure acting on holes located at the hand model surfaces were measured for various pitch angles to a flow of air in a wind tunnel. Flow visualization of air around the model was conducted using a laser beam. By means of the pressure data, the magnitudes of fluid force were calculated. The experimental results revealed that the thumb position has a large influence on the pressure distribution. The difference of the pressure distribution affected the hydrodynamic characteristics

Utilization of silkworm cocoon waste as a sorbent for the removal of oil from water

ArticleJOURNAL OF HAZARDOUS MATERIALS. 165(1-3):266-270 (2009)journal articl

Recent advances in the application of stable isotope ratio analysis in forensic chemistry

This review paper updates the previous literature in relation to the continued and developing use of stable isotope ratio analysis in samples which are relevant to forensic science. Recent advances in the analysis of drug samples, explosive materials, and samples derived from human and animal samples are discussed. The paper also aims to put the use of isotope ratio mass spectrometry into a forensic context and discuss its evidential potential

Efficient dynamic events discrimination technique for fiber distributed Brillouin sensors

A technique to detect real time variations of temperature or strain in Brillouin based distributed fiber sensors is proposed and is investigated in this paper. The technique is based on anomaly detection methods such as the RX-algorithm. Detection and isolation of dynamic events from the static ones are demonstrated by a proper processing of the Brillouin gain values obtained by using a standard BOTDA system. Results also suggest that better signal to noise ratio, dynamic range and spatial resolution can be obtained. For a pump pulse of 5 ns the spatial resolution is enhanced, (from 0.541 m obtained by direct gain measurement, to 0.418 m obtained with the technique here exposed) since the analysis is concentrated in the variation of the Brillouin gain and not only on the averaging of the signal along the time

Effect of the finite extinction ratio of an electro-optic modulator on the performance of distributed probe-pump Brillouin sensorsystems

This paper was published in Optics Letters and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://www.opticsinfobase.org/abstract.cfm?URI=ol-28-16-1418. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.Shahraam Afshar V., Graham A. Ferrier, Xiaoyi Bao, Liang Che

Lung surfactant in subacute pulmonary disease

Pulmonary surfactant is a surface active material composed of both lipids and proteins that is produced by alveolar type II pneumocytes. Abnormalities of surfactant in the immature lung or in the acutely inflamed mature lung are well described. However, in a variety of subacute diseases of the mature lung, abnormalities of lung surfactant may also be of importance. These diseases include chronic obstructive pulmonary disease, asthma, cystic fibrosis, interstitial lung disease, pneumonia, and alveolar proteinosis. Understanding of the mechanisms that disturb the lung surfactant system may lead to novel rational therapies for these diseases