نتایج جستجو برای: nature protection
تعداد نتایج: 487224 فیلتر نتایج به سال:
Naturally occurring items such as plants or minerals are, in general, ineligible for utility patent protection because they are viewed as belonging in the public domain. There is a dichotomy between those items that are naturally occurring, and consequently unpatentable, and those items that are not found in nature, which are patentable. Portions of items found in nature are eligible for patent...
a large number of maritime claims, are entitled to a legal protection that is established at the time of creation of the claim and subsequently, maritime lien in favour of the creditor. national regulations of maritime liens, dates back to ancient laws and customs and in order to removing differences of theses regulations, some international conventions on unification of certain rules relating ...
what has turned “nature” into a landscape and a tourism destination has transformed over time and comprised various aspects in different definitions. landscape definitions have considered nature as a tourism destination in multiple points of view. four main viewpoints are debatable in a time period from the first landscape definition till today. the first definition discusses the pictorial and ...
There is great interest in the restoration and conservation of coastal habitats for protection from flooding and erosion. This is evidenced by the growing number of analyses and reviews of the effectiveness of habitats as natural defences and increasing funding world-wide for nature-based defences-i.e. restoration projects aimed at coastal protection; yet, there is no synthetic information on w...
ارزیابی میزان کاهندگی صدای گوشی های ایرماف رایج برمبنای روش میدانی میکروفن داخل گوش در محیط های کاری
Background and aims Nominal noise reduction rating of the earmuff manufacturers can be different compared with the actual noise attenuation rating. The current study aimed to determine the actual noise reduction rate of current hearing protection devices in the real workplaces using a field microphone in real ear method (FMIRE). Methods: In this cross-sectional study, five common earmuffs we...
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