نتایج جستجو برای: metallic elements

تعداد نتایج: 313794  

2017
Yun Fan Chunlan Zhang Jin Bu

The prevalence of obesity has increased at an alarming rate worldwide. Metallic elements are involved in the pathogenesis of obesity and related diseases. To date, whether environmental exposure to metallic elements has effects on obesity in children and adolescents is still unclear. The aim of the current study was to investigate the association of blood metallic elements with obesity in U.S. ...

Journal: :مهندسی متالورژی و مواد 0
امید عودباشی سید محمد امین امامی حسین احمدی پرویز دوامی

in this paper, the evidences and remnants of archaeometallurgical activities in elamite site of haft tappeh (14th century bc) have investigated and identification of archaeometallurgical materials have been done based on analytical investigations. sem-eds analysis and metallography were used to identify the chemical composition and microstructural features of archaeometallurgical materials in h...

An intelligent design method of double screen frequency selective surfaces (FSSs) is addressed in this paper. The employed unit cell is composed of two metallic screens, which are printed on both sides of a substrate. The presented non-trial-and-error approach is investigated based on the separate design of each screen. With the help of some physical intuition and an equivalent circuit model, i...

Journal: :Metals 2023

Metallic materials are mostly a combination of metallic elements, such as iron, aluminum, magnesium, titanium and manganese, which may also include small amounts non-metallic carbon, nitrogen oxygen [...]

2012
Fengxiang Qin Zhenhua Dan Xinmin Wang Guoqiang Xie Akihisa Inoue

Biomedical materials can improve the life quality of a number of people each year. The range of applications includes such as joint and limb replacements, artificial arteries and skin, contact lenses, and dentures. So far the accepted biomaterials include metals, ceramics and polymers. The metallic biomaterials mainly contain stainless steel, Co-Cr alloys, Titanium and Ti-6Al-4V. Recently, bulk...

2013
T. L. Cung

In this letter, the interactions between a cup-core eddy current sensor and a metallic layered structure is studied. An affine relationship between the sensor normalized impedance and the distance between two plates of a metallic assembly is brought to light both by the experiment and by finite elements computations.

2015
Douglas M. Templeton

Metallic elements, ions and compounds produce varying degrees of toxicity in organisms with which they come into contact. Metal speciation is critical to understanding these adverse effects; the adjectives "heavy" and "toxic" are not helpful in describing the biological properties of individual elements, but detailed chemical structures are. As a broad generalization, the metallic form of an el...

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