Results 91 to 100 of about 521,562 (282)

Studying the Behavior of a Variable Pitch “Hydro Screw” Micro Hydro Turbine, Numerical Analysis and Experimental Investigation [PDF]

International Journal of Advanced Design and Manufacturing Technology, 2019
Hydro screw is an axial micro hydro turbine of Archimedean origin. Due to ever-increasing need for clean fuel based and environmentally clean electric power, a research project was undertaken at IROST.
ali hosseini moghdam omami, yousef yassi, ahmad Nourbakhsh   +2 more
doaj  

An inertial coupled marine power generator for small boats

, 2011
This paper proposes a device to harvest energy from the vertical motion of small boats and yachts. The device comprises a sprung mass coupled to an electrical generator through a ball screw.
Abu-Sharkh, S.M., Hendijanizadeh, M., Moshrefi-Torbati, M., Russell, M.   +3 more
core   +1 more source

Fast‐Responding O2 Gas Sensor Based on Luminescent Europium Metal‐Organic Frameworks (MOF‐76)

Advanced Functional Materials, EarlyView.
Luminescent MOF‐76 materials based on Eu(III) and mixed Eu(III)/Y(III) show rapid and reversible changes in emission intensity in response to O2 with very short response times. The effect is based on triplet quenching of the linker ligands that act as photosensitizers. Average emission lifetimes of a few milliseconds turn out to be mostly unaffected by
Zhenyu Zhao, Christian Weinberger, Jakob Steube, Matthias Bauer, Martin Brehm, Michael Tiemann   +5 more
wiley   +1 more source

3D‐Printed Sulfur‐Derived Polymers With Controlled Architectures for Lithium‐Sulfur Batteries

Advanced Functional Materials, EarlyView.
Rheology‐guided formulation design for direct ink writing enables the fabrication of 3D sulfur copolymer cathodes with controlled architectures for lithium‐sulfur batteries. The printed electrodes exhibit multiscale porosity and high sulfur utilization, delivering enhanced electrochemical performance compared to conventional cast electrodes.
Bin Ling, Haoran Wang, Pan Yang, Rishav Agrawal, Alex R. Neale, Laurence J. Hardwick, Tom Hasell, Esther García‐Tuñón   +7 more
wiley   +1 more source

Functional Outcome of Bimalleolar Ankle Fractures – A Prospective Study

Journal of Orthopaedic Diseases and Traumatology
Background: Ankle fracture ranks second among lower limb fractures, accounting for about 10% of all fractures. It occurs in about 137 per 1 lakh people each year.
R. Sahaya Jose, Shaheen Hameed, N. Kattu Bava, M. Syed Moosa   +3 more
doaj   +1 more source

Effect of design and kinematic parameters on energy requirement in inclined screw mixer

Advanced Engineering Research, 2018
Introduction. Rational parameters and modes of an inclined batch screw mixer are validated to achieve the lowest energyintensive feed mixing under observance of the zootechnical requirements for the feed quality on uneven mixing.
V. F. Khlystunov, S. V. Braginets, A. S. Alferov, M. V. Chernutskiy   +3 more
doaj   +1 more source

On the effects of turbulence on a screw dynamo

, 2006
In an experiment in the Institute of Continuous Media Mechanics in Perm (Russia) an non--stationary screw dynamo is intended to be realized with a helical flow of liquid sodium in a torus.
Denisov SA, Frick P, Frick P, Gailitis A, Gailitis A, Gailitis A, Karl-Heinz Rädler, Krause F, Krause F, Moffatt HK, Rodion Stepanov, Rädler K-H, Rädler K-H, Schlichting H   +13 more
core   +1 more source

Emergent Spin‐Glass Behavior in an Iron(II)‐Based Metal–Organic Framework Glass

Advanced Functional Materials, EarlyView.
A one‐pot, solvent‐free synthesis yields an Fe2+‐based metal‐organic framework (MOF) glass featuring a continuous random network structure. The material exhibits spin‐glass freezing at 14 K, driven by topological‐disorder and short‐range magnetic frustration, showcasing the potential of MOF glasses as a plattform for cooperative magnetic phenomena in ...
Chinmoy Das, Soma Salamon, Joachim Landers, Jan‐Benedikt Weiß, Wen‐Long Xue, Pascal Kolodzeiski, Roman Pallach, Heiko Wende, Sebastian Henke   +8 more
wiley   +1 more source

Tuning the Electronic Structure and Spin State of Fe─N─C Catalysts Using an Axial Oxygen Ligand and Fe Clusters for High‐Efficiency Rechargeable Zinc–Air Batteries

Advanced Functional Materials, EarlyView.
A FeN4─O/Clu@NC‐0.1Ac catalyst containing atomically‐dispersed FeN4─O sites (medium‐spin Fe2+) and Fe clusters delivered a half‐wave potential of 0.89 V for ORR and an overpotential of 330 mV at 10 mA cm−2 for OER in 0.1 m KOH. When the catalyst was used in a rechargeable Zn–air battery, a power density of 284.5 mW cm−2 was achieved with excellent ...
Yongfang Zhou, Yu Mao, Mengyao Chang, Ziyun Wang, Wenke Xie, Cuizhu Ye, Shanghai Wei, Lars Thomsen, Geoffrey I. N. Waterhouse   +8 more
wiley   +1 more source

Electronic Selection Rules Controlling Dislocation Glide in bcc Metals

, 2008
The validity of the structure-property relationships governing the deformation behavior of bcc metals was brought into question with recent {\it ab initio} density functional studies of isolated screw dislocations in Mo and Ta.
Chris Woodward, Dennis P. Clougherty, Mark E. Eberhart, P. Sherwood, R. F. W. Bader, Travis E. Jones, V. Vitek   +6 more
core   +1 more source