نتایج جستجو برای: rare materials

تعداد نتایج: 671388  

Journal: :Gels 2023

Rare earth elements (REEs) play indispensable roles in various advanced technologies, from electronics to renewable energy. However, the heavy global REEs supply and environmental impact of traditional mining practices have spurred search for sustainable recovery methods. Polymeric materials emerged as promising candidates due their selective adsorption capabilities, versatility, scalability, r...

پایان نامه :0 1374

having conducted the experiment and analysed the data, the researcher computed the groups mean scores and variances for the test relating to the research question. as the final atep, a t-test was conodonted for the hypothesis. as noted earlier, the significance level was determined at .05 and .01 respectively. the observed t-value was higher than the critical t-value at. 5 and .01 levels. conse...

Journal: :IOP Conference Series: Materials Science and Engineering 2016

Journal: :Sustainability 2023

The boom in technological advances recent decades has led to increased demand for rare earth elements (REEs) (also known as metals) across various industries with wide-ranging industrial applications, including the clean energy sector, but some environmental, economic, and social footprint concerns. This paper reviews complexities of production, consumption, reuse or recovery REEs, presenting c...

2013
Kyung Taek Rim Kwon Ho Koo Jung Sun Park

In concert with the development of new materials in the last decade, the need for toxicological studies of these materials has been increasing. These new materials include a group of rare earths (RE). The use of RE nanotechnology is being considered in some green applications, to increase their efficiency by using nano-sized RE compounds, and therefore hazard evaluation and risk assessment are ...

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