مروری بر توصیف کننده های مولکولی مواد پرانرژی در مدل های ارائه شده برمبنای qsar/qspr

مروری بر توصیف‌کننده‌های مولکولی مواد پرانرژی در مدل‌های ارائه شده برمبنای QSAR/QSPR

Abstract: Recognition of the molecular structures is the key point in understanding the performance of molecules; this is because of the existence relation between the structure and properties of a compound which links its microscopic and macroscopic to each other. The laboratory works usually are time consuming and expensive. QSPR is a method which help us to achieve the favoured data and info...

مروری بر خواص نرم کننده های پرانرژی برپایه آزیدواستر

Recent approach in the field of design and manufacture of the propellant and explosive has led to the use of energetic ingredients. Introduction of energetic plasticizers as a replacement of commonly used inert plasticizers is another approach to improve the energy level of propellants. In this meantime, energetic compound based on organic azids were attracting a lot of attention. The poor mech...

مروری بر پودرهای آلیاژسازی شده به روش های مکانیکی به عنوان گزینه‏ جدید در تحول مواد پرانرژی(علمی-ترویجی)

مروری بر مکانیزمهای تشکیل نقاط داغ در آغازگری مواد پرانرژی

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...

مروری بر روش‌های مطالعه ترک در مواد پلیمری پرانرژی

Cracking is the breaking of bonds in a part of the propellant polymer due to the existing stresses that change the structure of the propellant polymer and they are classified into two general categories: macrocrack and microcrack. The service life of rocket engines is largely a function of the mechanical properties of the solid rocket propellant, the aging characteristics of the rocket propulsi...

اثر بربرین در تنظیم آستروسیتهای Gfap+ ناحیه هیپوکمپ موشهای صحرایی دیابتی شده با استرپتوزوتوسین

Background: Diabetes mellitus increases the risk of central nervous system (CNS) disorders such as stroke, seizures, dementia, and cognitive impairment. Berberine, a natural isoquinolne alkaloid, is reported to exhibit beneficial effect in various neurodegenerative and neuropsychiatric disorders. Moreover astrocytes are proving critical for normal CNS function, and alterations in their activity...