Results 51 to 60 of about 869,870 (324)

Mining in Alaska - environmental impact and pollution control [PDF]

, 1975
Environmental factors affecting mining are difficult to establish in Alaska due to the absence of large scale hard rock mining activities at the present time.
Johansen, N. I.
core  

High‐Entropy Alloy Design Toward Cobalt Substitution for High Hardness and Low Wear Rate Using X–Cr–Fe–Mn–Ni System

Advanced Engineering Materials, EarlyView.
This study explores the replacement of cobalt using the high‐entropy alloy design strategy for wear‐resistant components operating at high temperatures. Starting from the Cantor alloy, cobalt is substituted with Cu, Al, V, or Mo. Metallurgical and tribological analyses reveal that aluminum, vanadium, and molybdenum effectively strengthen the developed ...
Rafaël Jénot, Laurent Peltier, Fodil Meraghni, Mathieu Marquer, Oriane Baulin, Clotilde Macke‐Bart   +5 more
wiley   +1 more source

Bimetallic (NiFe) and Trimetallic (NiFeCr) Nanoalloys from Metal Oxides Using a Microwave Hydrogen Plasma

Advanced Engineering Materials, EarlyView.
Bimetallic (NiFe) and trimetallic (NiFeCr) nanoalloys (NAs) are synthesized using corresponding oxide mixtures using microwave hydrogen plasma within a few milliseconds. The process simultaneously 1) reduces metal oxides to metals; 2) downsizes the particles from micrometers to nanometers; and 3) blends the metals to form NAs.
Sachin Kumar, Mohammad Kazemi, Zichang Xiong, Thomas Cameron, Julian Held, Uwe Kortshagen   +5 more
wiley   +1 more source

A Carbon Nanocomposite Material Used in the Physical Modelling of the Overburden Subsidence Process

Nanomaterials, 2023
Carbon nanomaterial is widely used in structural health monitoring due to the advantage of sensitivity and good mechanical properties. This study presents a novel approach employing carbon nanocomposite materials (CNMs) to characterize deformation and ...
Jianlin Xie, Shan Ning, Qingdong Qu, Weibing Zhu, Bozhi Zhao, Jialin Xu   +5 more
doaj   +1 more source

STUDY SKILLS AS A WAY TO INDEPENDENT LANGUAGE LEARNING [PDF]

, 2012
The purpose of the research is to find out whether the students possess the necessary study skills and whether their study skills are developed with each following academic year.
Shvets, O.D.
core  

Rational Use of Land Resource During the Implementation of Transportless System of Coal Strata Surface Mining [PDF]

, 2017
Surface mining and open pits engineering affect the environment in a very negative way. Among other pollutions that open pits make during mineral deposits exploiting, particular problem is the landscape changing. Along with converting the land into pits,
Gvozdkova, T., Osipov, Yury Mirzoevich, Trifonov, Vladimir Aleksandrovich, Tyulenev, M., Zhironkin, Sergey Aleksandrovich   +4 more
core   +1 more source

Biodegradable and Recyclable Luminescent Mixed‐Matrix‐Membranes, Hydrogels, and Cryogels based on Nanoscale Metal‐Organic Frameworks and Biopolymers

Advanced Functional Materials, EarlyView.
The study presents biodegradable and recyclable mixed‐matrix membranes (MMMs), hydrogels, and cryogels using luminescent nanoscale metal‐organic frameworks (nMOFs) and biopolymers. These bio‐nMOF‐MMMs combine europium‐based nMOFs as probes for the status of the materials with the biopolymers agar and gelatine and present alternatives to conventional ...
Moritz Maxeiner, Julian Burkhart, Kateryna Borysova, Chiara Mazzariol, Klaus Müller‐Buschbaum   +4 more
wiley   +1 more source

Revealing the Auxetic Behavior of Biomimetic Multimaterial and Region‐Specific Nanofibrous Fascicle‐Inspired Scaffolds via Synchrotron Multiscale Digital Volume Correlation: Innovative Building Blocks for the Enthesis Regeneration

Advanced Functional Materials, EarlyView.
Enthesis injuries are a worldwide healthcare problem. Biomimetic electrospun enthesis fascicle‐inspired scaffolds, with and without nano‐mineralization are developed. Human Mesenchymal Stromal cells (hMSCs) express the most balanced enthesis markers on the non‐mineralized scaffolds.
Alberto Sensini, Francesca Giacomini, Olga Stamati, Bratislav Lukic, Julie Villanova, Henry Proudhon, Maryse Gille, Zeinab Tahmasebi Birgani, Roman Truckenmüller, Gianluca Tozzi, Martijn van Griensven, Lorenzo Moroni   +11 more
wiley   +1 more source

Technology Progress and Development Trend of Preparing Magnesium Oxide from Magnesite

Kuangchan zonghe liyong
This is an article in the field of mining engineering. Magnesite in China is rich and good in quality. Its mineral quantity and grade rank the first in the world.
Yan HE, Lianyong WANG, Jiaxin CUI, Rui WANG   +3 more
doaj   +1 more source

On Using Network Science in Mining Developers Collaboration in Software Engineering: A Systematic Literature Review

, 2017
The goal of this study is to identify, review, and analyze the published research works that used network analysis as a tool for understanding the human collaboration on different levels of software development.
Abufouda, Mohammed, Abukwaik, Hadil
core   +1 more source