The present study considers of the water and air flow and Micro-Bubble production inside the venturi tube, by the use of dimensional analysis. Numerical analysis of Micro-Bubble creation in venturi tube requires fast computers and large amounts of storage space. Up to now, there has been no numerical analysis concerning Micro-Bubble creation and all other existing studies are experimental. To s...

Two-phase flow regimes are affected by conduit position, alignment, geometry, flow direction, physical characteristics, and flow rate of each phase as well as the heat flux toward the boundaries. Due to the importance of two-phase flow, numerous regimes have been identified. The first step in studying micro-bubble formation inside a venturi tube is to recognize the type of flow regimes. In this...

Pipeline spraying can be adopted for greatly improving efficiency in hillside orchard operations. However, residual phytosanitary product still remains the pipeline after completion of Currently, liquid is handled according to following general method: flushing with fresh water. The method easily lead pesticide waste and environment pollution. On-line mixing technology reducing environmental on...

This paper presents and compares three volume sensors to be used in mechanical ventilators developed laboratory: sensor based on the Pitot tube, Venturi tube infrared(IR) sensor. The were calibrated tested with a ventilator Pressure-controlled Ventilation (PCV) mode. maximum pressure changed, keeping textitPositive End-Expiratory Pressure (PEEP) respiratory rate fixed. For each value: value mea...

A "cannot-ventilate, cannot-intubate" situation is critical. In difficult airway management, transtracheal jet ventilation (TTJV) has been recommended as an invasive procedure, but specialized equipment is required. However, the influence of upper airway resistance (UAR) during TTJV has not been clarified. The aim of this study was to compare TTJV using a manual jet ventilator (MJV) and the oxy...

This paper presents a micro-fluid gathering tool for a versatile capsular endoscope that employs a solid chemical propellant, azobisisobutyronitrile (AIBN). The proposed tool consists of a micro-heater, an AIBN matrix, a Venturi tube, a reservoir, an inlet, and an outlet. The micro-heater heats the AIBN matrix to be decomposed into by-products and nitrogen gas. This nitrogen gas generates negat...