عصاره گیاه رزماری، 4 برابر آنتی­اکسیدان‌­های مصنوعی مانند BHT و BHA خاصیت آنتی­اکسیدانی دارد. رزمارینیک اسید نه تنها به دلیل خواص قوی مورد توجه است بلکه خصوصیات ضدالتهابی، ضدتوموری، ضدباکتریایی، ضدویروسی ضدسرطانی را نیز در پژوهش‌­های مختلف نشان داده است. هدف از این تحقیق، بررسی اثرات دما، زمان، pH غلظت پرتودیده نشان‌دارسازی آن با رادیوایزوتوپ گالیم-67 عنوان یک عامل تصویربرداری وضوح بالا برای تو...

Next-generation composite Al-Mg-Zr fuels for bio/chem-agent defeat applications rely on intermetallic formation reactions to reduce ignition temperatures below melting point of Al. Scaling-up the ball-milling synthesis these powders will require a detailed understanding how milling parameters and powder composition impact evolution microstructure. In present work, we explore effect duration siz...

J. Cárcel-Carrasco; M. Pascual; M. Pérez-Puig; F. Segovia. ITM-Universitat Politècnica de València (Spain). Camino de vera s/n, 46022 Valencia (Spain). Corresponding author, Email: [email protected] This work compares the weldability of ductile iron when: (I) a root weld is applied with a tungsten inert gas (TIG) process using an Inconel 625 source rod and filler welds are subsequently applie...

Welding of niobium and tantalum materials is currently conducted in vacuum or inert gas chambers, which limits the size of the equipment to be produced. The objective of this study is to investigate the means to make TIG welding on these materials in atmospheric environment and analyse the effect of heat input on the properties of welds. It was found that it is possible to make TIG welds on the...

The aim of this study is to assess the levels of airborne ultrafine particles emitted in welding processes (tungsten inert gas [TIG], metal active gas [MAG] of carbon steel, and friction stir welding [FSW] of aluminum) in terms of deposited area in pulmonary alveolar tract using a nanoparticle surface area monitor (NSAM) analyzer. The obtained results showed the dependence of process parameters...

The formation of ZnSe via a mechanically-induced self-sustaining reaction (MSR) from a Zn/Se mixture showed that only size reduction and mixing of the reactants without product formation occurred during the induction period prior to ignition. Therefore, all mechanical energy supplied by the planetary mill during this time, called the ignition time (tig), was used exclusively in the activation o...

Applying non-uniform heat in welding causes residual stress and distortion, which affects the life of components. In present study, distortion Duplex 2205 stainless steel A-TIG were investigated numerically experimentally. The optimal parameters for highest penetration depth welded samples obtained Uncoupled thermal-mechanical analysis using ABAQUS 2017 software has been done. Goldak's measured...

In the quest for energy efficient circuits, considerable focus has been given to steep slope and polarity-controllable devices, targeting low supply voltages and reduction of transistor count. The recently proposed concept of the three-independent gated (TIG) Si-FinFETs with Schottkybarrier (SB) has proven to bring both functionalities even in a single device. However, the