To encourage the utilization of the isolation chamber as a research tool, the cost of its use should be lowered. Methods and devices must be developed which make more efficient use of the space within the isolator and allow the operator to work more effectively in this confined area. A simple vacuum-cleaning system is described; it consists of a nozzle and flexible hose which connect through th...

When volatile solvents are used for paper chromatography, as in the systems described by Bush (1952) for separation of steroids, it is usually necessary to hang the paper in the tank for several hours' equilibration before the addition of the mobile phase. If equilibration is allowed to proceed overnight much of the next day will be taken up with running the chromatogram. An apparatus has there...

Stirred tanks are widely used in various industrial processes for mixing, and reactions understanding the flow behavior optimizing impeller design is crucial improving mixing efficiency product quality. This paper investigates radial velocity profiles near tip a baffled stirred tank using experimental measurements computational fluid dynamics (CFD) simulations. A cylindrical with four baffles w...

We consider the problem of active reduction of the structural vibrations induced by the sloshing of large masses of fuel inside a partly full tank. The proposed study focuses on an experimental device mimicking an aircraft wing made of an aluminum rectangular plate equipped with piezoelectric patches at the clamped end and with a cylindrical tip-tank, more or less filled with liquid. After deri...

A computational fluid dynamics (CFD) model has been developed to simulate the flow and heat transfer near a lower radial inlet diffuser in a cylindrical stratified chilled water storage tank during charging. The model was used to perform parametric simulations of inlet diffuser performance in full-scale tanks during thermocline formation, from which first-order correlation relating thermal perf...

PURPOSE The authors present a calibration method for a prototype proton computed tomography (pCT) scanner. The accuracy of these measurements depends upon careful calibration of the energy detector used to measure the residual energy of the protons that passed through the object. METHODS A prototype pCT scanner with a cesium iodide (CsI(Tl)) crystal calorimeter was calibrated by measuring the...

This study was performed to understand better the mechanisms of action of an (22.5 kHz) ultrasonic wire catheter device used to remove atheromatous plaque in diseased blood vessels (ultrasonic angioplasty). During a clinical procedure, the wire acts as an acoustic waveguide to transfer acoustic energy from a generator outside the body to the ball tip of the wire, which is inserted in the blood ...

KNO3 was used as the phase change material (PCM), but its thermal conductivity is too low to transfer heat between the PCM and conduction oil efficiently. In this thesis, on the basis of the previous studies (Yong Li, 2015), the solar power generation efficiency is enhanced with high temperature interval (280°C—400°C), and the new composite which are composed by the SiC honeycomb (SCH) frame an...

Abstract Supporting climate change mitigation and sustainable energy due to its ability reduce CO 2 , Liquefied Natural Gas (LNG) considered as promising alternative fuel. In a particular small market with LNG demand between 2,500 m 3 7,500 utilization of type-C, cylindrical tanks are compatible use in small-scale carrier. order overcome these challenges, Indonesian industry need design the tan...

Water use as a heat storage material in solar water heaters (SWH) has disadvantages, including its low energy density, which requires large volume of thermal storage. Phase-change (PCM) is latent type that the advantage being high density. Therefore, PCM quite interesting to be applied SWH systems. In operation SWH, it necessary know characteristics hot usage. This paper aimed determine continu...