نتایج جستجو برای: metal melting industry

تعداد نتایج: 410660  

Journal: ایمنی زیستی 2017
Fardis Nakhaei, Mehdi Iranajad,

Aluminium is the world’s second most-used metal after steel and the aluminium production industry is the largest, in volume of metal produced, in non-ferrous metal industry. In this study, results of the material flows (country and global scales) related to the production and use of aluminium and energy consumption in 1980 to 2012 were separately analysed. Also, overview of the current status o...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه بوعلی سینا - دانشکده اقتصاد و علوم اجتماعی 1388

چکیده ندارد.

2008
Chikong Huang Hsien-Ming Chang Chia-Hui Lin

Aerospace industry is a value-added and technology integrated industry. Sheet metal parts are important portion of aerostructures. The sheet metal production line combines five different routing types together. This study tries to make a comparison between job shop layout and cellular layout with lean concept. According to precedence diagram of sheet metal fabrication process, the model and mea...

2006
Alexander O Govorov Wei Zhang Timur Skeini Hugh Richardson Jaebeom Lee Nicholas A Kotov

We describe the peculiar conditions under which optically driven gold nanoparticles (NPs) can significantly increase temperature or even melt a surrounding matrix. The heating and melting processes occur under light illumination and involve the plasmon resonance. For the matrix, we consider water, ice, and polymer. Melting and heating the matrix becomes possible if a nanoparticle size is large ...

Surface roughness in the welding processes is one of the important parameters in the laser welded metal connections which affects laser beam absorption directly. When the laser beam is irradiated to the surface of the base metal, the surface roughness plays an important role in the amount of beam absorption and the amount of melting achieved and directly affects the penetration depth. The main ...

Journal: :Journal of energy storage 2021

Thermal energy storage is recognized as a key technology in the transition world facing today. But main technical barrier this has to achieve wider deployment low thermal conductivity of materials used, so-called phase change (PCM). This paper presents new concept for enhancement PCM tank using metal wool. Metal wool one least studied method enhance conductivity, while it high potential do so a...

2012
H. N. Aliyu N. A. M Toudou

Methylenedisalicylic acid was prepared as reported by the condensation reaction of salicylic acid with formaldehyde under acidic conditions. The complexes were prepared by refluxing ethanolic solutions of Methylenedisalicylic acid and some metal (II) salts. The ligand and its divalent metal complexes were characterized by solubility, melting point/decomposition temperature, molar conductance, a...

Journal: :Journal of Advanced Science 1993

Journal: :Journal of Fluid Flow, Heat and Mass Transfer 2019

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