نتایج جستجو برای: energetic and iso
تعداد نتایج: 16833762 فیلتر نتایج به سال:
ارائۀ استاندارد جامع پیشنهادی برای آزمایشگاههای دامپزشکی بر اساس استانداردهای iso 15189 و1 iso 900 و hse-ms ،ohsas 18001 استاندارد مجموعه ای از قواعد، ضوابط، دستورالعمل ها یا روش هاست که توسط گروهی واجد صلاحیت و ذی نفع تعیین، مدون، تصویب و منتشر می شود.در واقع تدابیری هستند که به صورت تدوین قوانین و مقررات استاندارد ملی و بین المللی متجلی شده اند و به صورت امری ضروری برای حفظ سلامت مردم جهان د...
in this study, deinkability of old newspaper by conventional method and the effect of washing, flotation and combined washing/flotation processes were investigated on optical and superficial properties of the produced papers. the results from measuring of the optical and superficial properties indicated that using chemical treatment time of 20 minute and one stage washing resulted the papers wi...
2- Azido N, N-Dimethyl Ethane-1-Amine, well-known as a DMAZ, is considered as a new green liquid fuel and a good alternative to hydrazine fuels because of its high performance while being non-carcinogenic. But no DMAZ energetic complex has been synthesized and reported yet. In this study, a new energetic complex of copper (II) nitrate and DMAZ ligand was synthesized for the purpose of increasin...
The present study evaluated cardioprotective effect of hydro-alcoholic extract of Nepeta hindostana (NH), commonly know as badranjbuyeh in Unani medicine, in the experimental model of isoproterenol (ISO) induced- myocardial infarction. Wistar albino rats were divided in to four groups: sham control, ISO control, NH treatment group and ISO with NH treatment groups. NH was administered at doses o...
Tetrazoles are cyclic aromatic compounds that include four nitrogens and one carbon atom in one ring .These compounds have many applications in civil and military industries. These compounds can produce great amount of N2 after burning and for this reason they have a little environmental contamination and are considered as green explosive materials. Introduction of tetrazoles in polymeric chain...
Hydroxyl terminated polybutadiene (HTPB) is the most commonly used binder in composite solid propellants. However, due to its non-energetic character, in practice it is just a dead weight; Therefore, replacing HTPB with an energetic polymer is essential. In this research, nitrated hydroxyl terminated polybutadiene resin (NHTPB) with 12.2% nitration rate, in combination with HTPB resin was used ...
The Study of Hot Spots as a Cause of Circumstantial Initiation in Energetic Materials in order to Increase Work and Storage Safety of these Materials is of Special Importance. Hot Spots, by Converting Different Types of Force like Mechanical Forces, Friction, Heat, and… into Heat, Cause the Temperature to Rise Exponentially by about 700 Kelvin in 10-3 to 10-5 Seconds at that Point. If This Temp...
Glycidyl azide polymer (GAP) is used as a binder in the propellants. Energetic ionic liquids are used as a plasticizer to correct the properties of polymer. In this study, first ionic liquid was bonded to the GAP by certain amount and then the energetic anions of nitrate (NO3) and azide (N3) were used to exchange anion. FTIR analyses confirm accurately anions exchange. DSC, viscometer and heat ...
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