Water injection for gasoline engines: Potentials, challenges, and solutions

simulation and experimental studies for prediction mineral scale formation in oil field during mixing of injection and formation water

abstract: mineral scaling in oil and gas production equipment is one of the most important problem that occurs while water injection and it has been recognized to be a major operational problem. the incompatibility between injected and formation waters may result in inorganic scale precipitation in the equipment and reservoir and then reduction of oil production rate and water injection rate. ...

diagnostic and developmental potentials of dynamic assessment for writing skill

این پایان نامه بدنبال بررسی کاربرد ارزیابی مستمر در یک محیط یادگیری زبان دوم از طریق طرح چهار سوال تحقیق زیر بود: (1) درک توانایی های فراگیران زمانیکه که از طریق برآورد عملکرد مستقل آنها امکان پذیر نباشد اما در طول جلسات ارزیابی مستمر مشخص شوند; (2) امکان تقویت توانایی های فراگیران از طریق ارزیابی مستمر; (3) سودمندی ارزیابی مستمر در هدایت آموزش فردی به سمتی که به منطقه ی تقریبی رشد افراد حساس ا...

Hybrid Command Governors for Idle Speed Control in Gasoline Direct Injection Engines

The Main Challenges and Suggested Solutions for Optimization of Water Management in an Educational hospital

Introduction: Hospitals are one of the main water consumers in urbane area. Due to lack of enough information, the challenges and some of the solutions were investigated for optimization of water management. Materials and Methods: This study was a cross-sectional study in a Shiraz educational hospital. Data were collected by questionnaires with 146 items. The items was classified in several st...

Characterisation of Particulate Matter Emitted from Aviation Gas Turbines and Spray-Guided Direct Injection Gasoline Engines