نتایج جستجو برای: energy sources

تعداد نتایج: 922550  

ژورنال: سلامت کار ایران 2013
غرببی, وحید, ملکوتی, جواد,

  Background and aims:   In automated excavation operations especially excavating big tunnels with high operation speed the application of Tunnel Boring Machine (TBM) has been prevalent. Tunneling construction projects especially TBM excavating operations have experienced some accidents in recent years. Hazard control must be done through the process of risk management. This study was done w it...

2005
Danhong Huang

Form Approved OMB No. 0704-0188 Public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing this collection of information. Send comments regarding this burden estimate or any other aspect of this coll...

صالحی دوبخشری, احمد , فتوحی فیروزآباد, محمود ,

The increase in fossil fuel prices has resulted in growing utilization of renewable energy sources in power systems. Wind energy as an economical source of energy has experienced the fastest growth among other energy sources. Traditionally, renewable energy sources as a result of their random nature have not been considered in the process of generation expansion planning. The increase in fossil...

Journal: :Proceedings. Biological sciences 2015
Christine N Bedore Stephen M Kajiura Sönke Johnsen

Cephalopods, and in particular the cuttlefish Sepia officinalis, are common models for studies of camouflage and predator avoidance behaviour. Preventing detection by predators is especially important to this group of animals, most of which are soft-bodied, lack physical defences, and are subject to both visually and non-visually mediated detection. Here, we report a novel cryptic mechanism in ...

2008
Lincoln Gill Barney Dalgarno

The role of Information and Communication Technologies (ICTs) in the school classroom is becoming increasingly prominent, both because of the need for children to develop skills that will empower them in modern society and because of the potential value of such technologies as tools for learning. One of the challenges facing teacher educators is how to ensure that graduate teachers have the nec...

Journal: :Proceedings of the Royal Society of Victoria 2014

Journal: :Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 2003

Journal: :Intereconomics 1967

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