Results 81 to 90 of about 33,624 (262)

Unidirectional Tape‐Based Composites from Hemp and Pineapple Leaf Fiber: Mechanical Performance in Conventional and Bio‐Based Matrices

Advanced Engineering Materials, EarlyView.
The study investigates novel semi‐finished products made of unidirectionally arranged hemp or pineapple leaf fiber‐reinforced composites produced from different matrices. The materials are analyzed in terms of their mechanical and interfacial properties and void content.
Nina Graupner, Raja Bade, Valentin Ackermann, Roja M. Baumann, Corvin Bischoff, Jona F. Ebeling, Oskar Glenz, Marlo Groh, Jonathan Groth, Finja Hiller, Tom Hirschmüller, Felix Menke, Syntcha Ngantchou Lecdou, Mika Ohler, Daniel Rafii Vardiny, Darius Richter, Dario Röper, Henrik Schumacher, Theresa Stein, Benjamin Vorbeck, Elisabeth Wermter, Kay Kölzig, Jörg Müssig   +22 more
wiley   +1 more source

Characteristics of native gold at Kosumnerskoe placer gold deposit (the Nether-Polar Urals)

Известия высших учебных заведений: Геология и разведка, 2018
The paper presents the results of a study of heavy mineral concentrates of Kosumnerskoe gold deposit as well as the native gold from them. This gold deposit includes two gravel deposits.
M. A. Boguslavskiy, S. O. Khudyakov
doaj   +1 more source

A mineral reconnaissance survey of the Abington-Biggar-Moffat-area, south-central Scotland [PDF]

, 1979
Panned heavy mineral concentrates, mostly obtained from stream sediments, were collected from 195 sites in the Abington-Biggar-Moffat area. The project area, which lies immediately east of the formerly important mining district of Wanlockhead ...
Dawson, J., Floyd, J.D., Phillip, P.R.
core  

Photoswitchable Conductive Metal–Organic Frameworks

Advanced Functional Materials, EarlyView.
A conductive material where the conductivity can be modulated remotely by irradiation with light is presented. It is based on films of conductive metal–organic framework type Cu3(HHTP)2 with embedded photochromic molecules such as azobenzene, diarylethene, spiropyran, and hexaarylbiimidazole in the pores.
Yidong Liu, Mersad Mostaghimi, Abhinav Chandresh, Saibal Jana, Wolfgang Wenzel, Lars Heinke   +5 more
wiley   +1 more source

Economic Evaluation of Placer Gold Along River Indus From Ghazi to Kund, Khyber Pakhtunkhwa, Pakistan: Implications for Commercial Scale Pilot Plant

International Journal of Economic and Environment Geology, 2019
A detailed study was conducted on Indus river in order to evaluate the economic potential. Samples were collected for geochemical studies from both stream sediments (SS) and heavy mineral concentrates (HMC) along Indus river from Ghazi, Hund, Beka ...
Liaqat Ali, Sajjad Ahmad, Seema Anjum Khattak, Naveed Anjum, Muhammad Waseem, Asghar Ali
doaj  

Terrigenous Tertiary Gold Bearing Strata: World Distribution, Economic Significancy and Modern Placer Formation Capacity

Russian Journal of Earth Sciences
The article is dedicated to estimation of tertiary terrigenous strata role in world gold mining. Localization peculiarities of tertiary gold deposits and their placers were examined.
Vladimirceva Ol'ga, Lalomov Alexander, Prasolov Alexander, Orlov Sergei   +3 more
doaj   +1 more source

The application of deep eutectic solvent ionic liquids for environmentally-friendly dissolution and recovery of precious metals [PDF]

, 2016
publisher: Elsevier articletitle: The application of deep eutectic solvent ionic liquids for environmentally-friendly dissolution and recovery of precious metals journaltitle: Minerals Engineering articlelink: http://dx.doi.org/10.1016/j.mineng.2015.09 ...
Abbott, Abbott, Abbott, Abbott, Abbott, Ahmed Z.M. Al-Bassam, Andrew P. Abbott, Chapman, Christopher J. Stanley, Curtis, Daniel J. Smith, David A. Holwell, Dominy, Dong, Gawen R.T. Jenkin, Groen, Hill, Luczak, Robert C. Harris, Robert J. Chapman, Schouwstra, Smith, Spry, Vaughan, Wadsworth, Whitehead, Whitehead, Whitehead, Woodhouse, Zhang   +29 more
core   +1 more source

Organic Electrochemical Transistor Channel Materials: Copolymerization Versus Physical Mixing of Glycolated and Alkoxylated Polymers

Advanced Functional Materials, EarlyView.
This work discusses the use of blended channel materials in OECTs. It explores how mixing glycolated and alkoxylated polymers in various ratios offers a simpler and more efficient route to tuning OECT properties. The performance of the polymer blends is compared to the corresponding copolymers, demonstrating similar OECT characteristics, swelling ...
Lize Bynens, Kaishuai Zhang, Priscila Cavassin, Arwin Goossens, Jochen Vanderspikken, Tania C. H. Castillo, Demetra Tsokkou, Adam Marks, Arianna Magni, Karrie Weaver, Laurence Lutsen, Sahika Inal, Koen Vandewal, Natalie Banerji, Wouter Maes   +14 more
wiley   +1 more source

Dual‐Mode Film Based on Highly Scattering Nanofibers and Upcycled Chips‐Bags for Year‐Round Thermal Management

Advanced Functional Materials, EarlyView.
Intelligent radiative cooling devices, adaptable to various weather conditions, have the potential for year‐round energy savings. This study introduces a sustainable dual‐mode film made from polycaprolactone nanofibers and upcycled chip bags for effective thermal management.
Qimeng Song, Stefan Rettinger, Chengzhang Xu, Ulrich Mansfeld, Markus Retsch   +4 more
wiley   +1 more source

Substantiation of the technology for reducing dilution by changing the direction of water flow in the dredge section

Journal of Degraded and Mining Lands Management
The global demand for gold was considered, as well as the ratio of placer gold to ore. It is revealed that there is an increase in the cost of gold mining.
Victor E Kislyakov, Pavel A Zubov, Alexander S Kokorev   +2 more
doaj   +1 more source