introduction : hospital infections are one of the important reasons of mortality and incurred expenses. therefore, we must control these infections by identifying contamination sources. the aim of this study was the determination of bacterial pollution of corrugated anesthesia sets in surgical rooms. methods: this study was an analytic-description one performed in training hospitals of yazd cit...

This paper is a brief review of the program initiated some years ago in [JMP]. The main goal of this program is to understand the formation and the propagation properties of surface states in regions with corrugated boundaries. The history of this problem and its physical aspects are discussed in [JMP, KP]. The results described in this review are obtained in collaborations with Yoram Last and ...

The aim of the research presented here is to develop a new experimental device which would permit the study of multiscale and vertically-variable oceanographic flows using a system called the Hydraulic-Control Wave-maker (HCW). Both the inlet and outlet flume boundaries are composed of an adjustable set of vertical baffles. Each baffle is connected to an individual flow control system, such tha...

A form of steel baffles, which is made poles encased in concrete and embedded into the ground, are introduced this article. This type protective installation to be located on previously identified/designed catchment at multiple levels up hillslope fence off large fallen boulders during landslides or rockfalls. These baffles intended serve as added-on protection filter barriers (array baffles) t...

this experiment was carried out to increase the shelf life and maintaining the quality of mango (mangifera indica) fruits. there were two factors. factor a: postharvest treatments with six levels (1. untreated (control), 2. washing with chlorine, 3. dipping (5 minutes) in calcium chloride (cacl2), 4. dipping (5 minutes) in bavistin and rinse in clean water, 5. hot water treatment and 6. tap wat...

As most classical fluidization technologies, Circulating Fluidized Beds (CFB) are widely employed in chemical and physical operations. However, CFB Reactors still have some disadvantages such as the non-uniform solid particles distribution backflow of near wall, which deteriorate system mixing, lead to low conversion/heat mass transfer rate. To improve performance, we propose current work study...

The study shows an experimental investigation for a solar air collector with single pass by adding rectangular baffles different positions inside the channel. aim of this is to improve thermal efficiency collector, and that through testing four cases (mode 1, 2, 3, 4). was done under operating conditions changing mass flow rates baffles. results show effectiveness in improving also proved affec...

In this study, the multi-phase Eulerian–Eulerian two-fluid method (TFM) coupled with kinetic theory of granular flow (KTGF) was used to investigate hydrodynamics particle flows (Geldart Group B) in a lab-scale bubbling fluidized bed. The goal improve bubble behavior inside bed distribution an injected liquid, by increasing bubbles entering spray jet cavity and, thus, reduce formation wet agglom...

This experiment was carried out to increase the shelf life and maintaining the quality of mango (Mangifera indica) fruits. There were two factors. Factor A: postharvest treatments with six levels (1. untreated (control), 2. washing with chlorine, 3. dipping (5 minutes) in calcium chloride (CaCl2), 4. dipping (5 minutes) in bavistin and rinse in clean water, 5. hot water treatment and 6. tap wat...