نتایج جستجو برای: made environment
تعداد نتایج: 955054 فیلتر نتایج به سال:
Man-made marine structures (MMS) are commonly used to describe any artificial structure in the environment, encompassing oil and gas infrastructure pipelines, reefs, jetties, piers shipwrecks. MMS increasingly proposed address issues facing planners, including augmenting fish stocks through creation of reefs repurposing redundant offshore (‘rigs reefs’). Marine spatial planning is a highly cont...
THIS little book by Professor Rendle Short sets out to give an account of the structure and functions of the human body for the non-medical reader, and to present the student of physiology with accurate and up-to-date facts from a somewhat unusual angle. There is no doubt that the author succeeds in both these objects, and he gives a most interesting and instructive set of chapters ranging in s...
wireless sensor networks (wsns) are one of the most interesting consequences of innovations in different areas of technology including wireless and mobile communications, networking, and sensor design. these networks are considered as a class of wireless networks which are constructed by a set of sensors. a large number of applications have been proposed for wsns. besides having numerous applic...
Background and Objective: Recently, microplastics (MPs) have been found in the aquatic and terrestrial environments, air, and food. Other pollutants can be transported by MPs and pose a threat to the human, animal, and environment. Measurement and evaluation of microplastics can either increase knowledge about them or boost understanding of their possible harmful effects. However, no standard m...
The Beef Information Nucleus is a series of large, well structured progeny test programs undertaken by Breed Societies with cofunding assistance from Meat & Livestock Australia (MLA). Young bulls of high genetic merit are joined by either AI or natural mating to a commercial cow base to produce progeny which are managed commercially as one cohort and measured for a range of economically traits....
در عصر حاضر که رقابت بین سازمان ها بسیار گسترش یافته است، مطالعه و طرحریزی سیستم های تولیدی و خدماتی به منظور بهینه سازی عملکرد آنها اجتناب ناپذیر می باشد. بخش عمده ای از رقابت پذیری سازمان ها نتیجه رضایتمندی مشتریان آنها است. میزان موفقیت سازمان های امروزی به تلاش آنها در جهت شناسایی خواسته ها و نیازهای مشتریان و ارضای این نیازها بستگی دارد. از طرفی کوتاه کردن زمان ارائه محصول/خدمات به مشتریان...
The impeller under consideration is a rotor wheel of centrifugal compressor, made 17-4PH martensitic precipitated hardening stainless steel. Its total operating lifetime was estimated to 80,000 h, but it fractured beforehand, 4 days after the scheduled overhaul without any observed pre-symptoms. important causes failure were its working conditions: moist H2S environment, applied shaft fitting s...
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