نتایج جستجو برای: aluminum

تعداد نتایج: 51202  

2017
Azlan Ahmad Mohd Amri Lajis Nur Kamilah Yusuf

Solid-state recycling, which involves the direct recycling of scrap metal into bulk material using severe plastic deformation, has emerged as a potential alternative to the conventional remelting and recycling techniques. Hot press forging has been identified as a sustainable direct recycling technique that has fewer steps and maintains excellent material performance. An experimental investigat...

Journal: :Plant physiology 1988
A Pettersson L Hällbom B Bergman

Aluminum severely affects the growth of the cyanobacterium Anabaena cylindrica and induces symptoms indicating phosphorus starvation. Preor post-treating the cells with high (90 micromolar) phosphorus reduces the toxicity of aluminum compared to cells receiving a lower orthophosphate concentration. In this study aluminum (ranging from 9 to 36 micromolar) and phosphorus concentrations were chose...

2014
Christopher Exley

In the aluminum age, it is clearly unpalatable for aluminum, the globe's most successful metal, to be implicated in human disease. It is unpalatable because for approximately 100 years human beings have reaped the rewards of the most abundant metal of the Earth's crust without seriously considering the potential consequences for human health. The aluminum industry is a pillar of the developed a...

Journal: :international journal of advanced design and manufacturing technology 0
hamed aghajani department of mechanical engineering , sari branch, islamic azad university, sari, iran. majid elyasi morteza hoseinzadeh

in this paper, welding feasibility between aa1100, aa5050 and aa6082 aluminum alloys and a441 aisi steel by friction stir welding has been studied. mathematical analysis of the heat generation during process showed that the maximum temperature produced in aa6082 aluminum alloy and a441 aisi joint but heat distribution in aa1100 aluminum alloy was higher than the other alloys. the investigation ...

2016
Wilberth Poot-Poot Beatriz A. Rodas-Junco J. Armando Muñoz-Sánchez S. M. Teresa Hernández-Sotomayor

OBJECTIVE Aluminum toxicity is a major limiting factor with regard to crop production and quality in most acidic soils around the world. We propose the use of C. arabica L. protoplasts to evaluate the toxic effects of aluminum, the nuclear localization of aluminum and propensity of aluminum to cause DNA damage. RESULTS After protoplasts were exposed to aluminum (Al) for varying periods of tim...

2006
MSPI TAKAHASHI

The atomic absorption of aluminum with air-acetylene flame was interfered by the formation of involatile compounds in the flame. Amines promoted the atomization of aluminum in the flame. Aluminum could be determined by atomic absorption spectrometry with an air-acetylene flame. The absorption of aluminum increased and then attained a constant value as the concentration of amines increased. The ...

Journal: :CoRR 2009
S. Rodthong B. Burapattanasiri

This article is present the effected oxide capacitor in CMOS structure of integrated circuit level 5 micrometer technology. It has designed and basic structure of MOS diode. It establish with aluminum metallization layer by sputtering method, oxide insulator layer mode from silicon dioxide, n and p semiconductor layer, it has high capacitance concentrate. From the MOS diode structure silicon di...

2011
Mohammad Reza Fathi Nahid Pourreza

A sensitive preconcentration procedure for spectrophotometeric determination of aluminum was developed. Aluminum as aluminon complex is adsorbed on microcrystalline naphthalene. The naphthalene containing the complex is dissolved in 3 mL of acetone and its absorbance is measured at 544 nm. The effect of various factors on the preconcentration of aluminum was investigated. The calibration graph ...

2006
Nikhil Gupta

This paper summarizes attempts to incorporate fl y ash into aluminum castings to decrease the energy content, material content, cost, and weight of selected industrial components, while also improving selected properties. It is shown that fl y ash can be incorporated into an aluminum-alloy matrix using stir casting and pressure infi ltration techniques. The sand and permanent mold castings, whi...

2010
I. D. STEVANOVIĆ M. D. JOVANOVIĆ M. ČOLIĆ A. JELENKOVIĆ R. MIHAJLOVIĆ I. STOJANOVIĆ M. NINKOVIĆ

The presented experiment was carried out to determine the effectiveness of the inducible nitric oxide synthase inhibitor aminoguanidine in modulating the toxicity of aluminum chloride on the nitrite levels, malondialdehyde concentration, reduced glutathione content, as well as cytochrome c oxidase activity of Wistar rats. The animals were killed 3 h and 30 days after treatment and the hippocamp...

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