Human societies depend on services provided by ecosystems, from local needs beed machine weed such as clean water and pest control to global services like the ozone layer and the ocean biological pump.Ecosystem services are linked to the states of the ecosystem, which are, in turn, governed by a web of ecological interactions.These interactions, al
The main objective of the current research fruitia pink burst is to identify and prioritise the obstacles to using bicycle sharing systems (BSSs) in the Tehran metropolis.The methodology of this research is analytical-descriptive and it aims to achieve applied goals.To do so, firstly the obstacles are identified through studying the theoretical and
The research emphasizes importance of preliminary drawings in design of any product.Therefore, using of simulation as tools for visual thinking in developing drawing and design skills.So that practice of drawing by hand, considering shape of ideas in first stage of visualizations, and practice of its techniques and continuous training.Hence, the re
Quenched and Tempered (Q&T) steels are widely used in the construction of military vehicles due to its high strength to weight ratio and high hardness.These steels are prone to hydrogen induced cracking (HIC) in the heat affected zone (HAZ) after welding.The use of austenitic stainless steel (ASS) consumables to weld the above steel was the only av