A low mass, fully cylindrical and dead region free GEM detector is under development as Inner Tracker for the KLOE experiment upgrade at the DAΦNE facility in Frascati. The proposed detector will play a crucial role in the study of the Ks decays and interferometry. The main physics requirements are: good detector spatial resolution σrφ about 200 μm and σz about 500 μm and a very low material bu...

An experimental study of the impact breakage a single tapioca grain using an air jet mill is carried out. High-velocity jets at circumference cylindrical grinding chamber propel tangentially, resulting in numerous collisions with cylinder walls prior to breakage. Videography and image analysis are used obtain trajectory particle sizes fragments. Each experiment repeated 25 times three different...

Abstract. The Sweeping Langmuir Probe (SLP) is one of the instruments on board triple-unit CubeSat PICASSO, an ESA in-orbit demonstrator launched in September 2020, which flying at about 540 km altitude. SLP comprises four small cylindrical probes mounted tip solar panels. It aims to perform situ measurements plasma parameters (electron density and temperature together with ion density) spacecr...

SAFRAN Helicopter Engines has developed the spinning combustion technology in which burnt gases from one injector travel tangentially along combustor annulus towards neighboring injectors. Compared to a conventional design, this arrangement modifies ignition process, is critical phase for aeroengines . In order understand process technology, experiments and Large-Eddy Simulation (LES) have been...

A novel flat capillary pump was designed to solve the problem of heat leakage from evaporator accumulator in pumps. The materials used obtain porous wick and main shell were silicon nitride low-thermal conductivity titanium alloy, respectively. size resulting 82.0 mm × 53.0 16.0 mm, eight cylindrical wicks arranged inside pump. pore size, porosity, 0.5 µm...

Combustion of agricultural residues and wastes for energy applications is still popular. However, combustion biomass with different shapes leads to many side effects such as agglomeration, emission incomplete combustion. The aim this study was therefore investigate the on characteristics in an updraft chamber. rubber wood chip, coconut shell, oil palm empty fruit bunch, corn straw, sawdust, mix...

This report describes the conversion of an existing large-cross-sectionalarea tunnel into a shock tube and the evaluation of the capabilities of this facility for blast loading and response studies of full-scale and large-scale structural elements. Also included are the results from a preliminary test series of full-scale wall panels conducted as part of the evaluation program and the design of...

The article is devoted to a pilot study of the reverse-bladed pump. characteristics reverse bladed pump are identical parameters on flow, head, power, energy efficiency direct and return operating modes (at rotation rotor both in one opposite side). model reversible axial with two impeller versions was tested an experimental bench. impellers were distinguished by shape profile blade sections. s...

Roots blower is a positive displacement machine that has the advantage of larger flow than conventional blowers. blowers are widely used in industrial production such as chemicals, food, medical, etc. However, during actual operation, this type often achieves low performance. One issues greatly affect performance characteristics blower. Flow include factors related to rate, pressure, and phenom...

In the MEG II detector, measurement of momentum charged particle is performed by a high transparency single volume, full stereo cylindrical Drift Chamber (CDCH). It composed 9 concentric layers, each consisting 192 drift cells. The cell approximately squared, with 20 μm gold plate tungsten sense wire surrounded 40 μm/50 silver plated aluminum field wires in ratio 5:1. During construction first ...