Results 31 to 40 of about 16,003 (268)

Design and Characterization of a Two‐Dimensional Soft Array Based on Cooperative Dielectric Elastomer Actuators

Advanced Functional Materials, EarlyView.
A fully polymeric two‐dimensional array of Dielectric Elastomers enables self‐sensing, cooperative actuation, and large‐stroke operation in a DE‐based autonomous conveyor. Based only on voltage and current measurements at actuator level, the system detects the presence of a ball and subsequently drives it toward a target position.
Saverio Addario, Alberto Priuli, Giovanni Soleti, Sebastian Gratz‐Kelly, Benjamin Zemlin, Stefan Seelecke, Gianluca Rizzello   +6 more
wiley   +1 more source

Thermal‐Driven Diode Polarity Switching From Competing Helical Superconducting States in WTe2/α‐Fe2O3 Heterostructures

Advanced Materials, EarlyView.
A Nb‐proximitized Josephson junction based on a WTe2/α‐Fe2O3 heterostructure exhibits a robust superconducting diode effect with programmable polarity. The diode direction can be trained by magnetic fields and switched by temperature cycling, revealing tunable finite‐momentum pairing states and competing superconducting states in symmetry‐broken ...
Enze Zhang, Grant Z. X. Yang, Zi‐Ting Sun, Xinhou Chen, Shishun Zhao, Chufan Chen, Chenhui Zhang, Fanrui Hu, K. T. Law, Hyunsoo Yang   +9 more
wiley   +1 more source

Predicted effect of ore composition on slag formation in manganese ore reduction [PDF]

Mineral Processing and Extractive Metallurgy, 2014
Previous work showed that manganese ore reduction rates are strongly influenced by the extent of slag phase formation. In this work, the effect of ore composition on slag formation during manganese oxide reduction was predicted using thermochemical calculations; FactSage 6·4 was used to calculate the equilibrium phase relations in the oxide system MnO ...
Coetsee, Theresa, Zietsman, Johannes Hendrik, Pistorius, Chris   +2 more
openaire   +2 more sources

Confinement‐Induced Donnan Potential Enables Sealed Hydrovoltaic Power From Microliter Water

Advanced Materials, EarlyView.
An ultrathin MXene/cellulose nanofiber (CNF) nanochannel‐based hydrovoltaic generator produces sustained direct current (DC) from a single microliter droplet under sealed operation. Asymmetric nanochannel confinement establishes a persistent ion gradient and a confinement‐induced Donnan potential, harvesting the interfacial free energy released upon ...
Sangyun Na, Geonyoung Jung, Yoojin Chang, Yun Goo Ro, Cheolhong Park, Jeonghee Yeom, Jinyoung Kim, Jeeyoon Kim, Hyejin Lee, Hyeji Oh, Hyunhyub Ko   +10 more
wiley   +1 more source

Occurrence of wolfram, copper, cobalt and gold mineralization in the area of the Argentine Islands (West Antarctica)

Український антарктичний журнал, 2020
Objective. The objective of our research was to search for manifestations of ore mineralization on the Roca and Cruls islands in the Argentine Islands, West Antarctica. Methods.
G. V. Artemenko, V. I. Ganotzkiy, L. I. Kanunikova, E. Е. Grechanovskaya, А. А. Taraschan   +4 more
doaj   +1 more source

Active Phase of Nickel Electrocatalysts Driving Alkaline Hydrogen Evolution

Advanced Materials, EarlyView.
Using depth‐resolved and operando spectroscopic measurements coupled with electrochemical mass spectrometry, the authors uncover the critical role of sub‐surface oxidised species in increasing the activity and durability of Ni‐based cathodes for hydrogen evolution.
Yifeng Wang, Eleanor Ender, Santosh Kumar, Cindy Tseng, Guangmeimei Yang, Boxi Ye, Caiwu Liang, Youli Yu, Norton West, Inderjeet Chauhan, Jun H. Ng, Sid Halder, Sang Gu Ji, Georg Held, Mary P. Ryan, Katie L. Moore, Alex S. Walton, Reshma R. Rao   +17 more
wiley   +1 more source

TYPIFICATION OF GRANITIC FORMATIONS AND THEIR ORE CONTENT [PDF]

Geological Journal, 2016
 This paper discusses the data on problems of typification of granitic formations and their possible metallogenic content. Among existing principles of classification the most useful as to metallogenic point of view is an international typification of granites with distinguishing І- and S-types which has been offered by australian scientists B.W ...
Grinchenko, O.V., Bondarenko, S.M., Sydorchuk, V.S.   +2 more
openaire   +2 more sources

All‐Amyloid Functional Coacervates

Advanced Materials, EarlyView.
This study introduces an all‐amyloid interfacial complex coacervate technique that employs charge‐mediated or functionalization‐assisted complexation of oppositely charged food protein‐derived amyloid nanofibrils to engineer functional soft constructs across multiple length scales.
Seyyed Alireza Hashemi, Mohammad Peydayesh, Laura Baraldi, Mohammad Arjmand, Raffaele Mezzenga   +4 more
wiley   +1 more source

Photocatalytic Water Splitting on the Lunar Surface: Prospects for In Situ Resource Utilization

Advanced Materials Interfaces, EarlyView.
Water has been found in craters on the moon nearby locations which are illuminated >80% of the time. Photocatalysis uses energy from sunlight to drive chemical reactions such as water splitting to produce oxygen and hydrogen. It is a scalable technology that requires lighter equipment and utilizes resources available on the moon. ABSTRACT The discovery
Ranjani Kalyan, Thomas D. Small, Gregory F. Metha, Mahmoud Adel Hamza, Thomas J. O'Dea, Yideng Shen, Cameron J. Shearer   +6 more
wiley   +1 more source

Uranium-lead age of monazite from granite of the gaysin complex (Ros-Tikits megablock of the Ukrainian shield

Мінеральні ресурси України, 2017
Haysin complex includes granitoids that form a continuous series of rocks: diorite – quartz diorite – granodiorite – amphibole–biotite granite – biotite granite – pink applet-pegmotoid granite.
L. M. Stepanyuk, K. S. Bukhareva, S. I. Kurylo, T. I. Dovbush, O. V. Ziultsle   +4 more
doaj