Results 61 to 70 of about 30,595 (299)

X‐Functionality–Driven Photocatalytic Hydrogen Evolution in 2D 4‐X‐PEA2SnI4 Perovskites

Advanced Functional Materials, EarlyView.
We report a water‐based synthesis of 2D 4‐X‐PEA2SnI4 perovskite microcrystals with prominent photocatalytic (PC) activity for H2 production. The synergy between organic functionalization and HI‐derived iodide scavenges holes suppress octahedral distortion, and favor electron accumulation, enabling a PC H2 evolution ∼20 µmol·g−1 and long‐term stability ...
Taeyeon Kim, Gayoung Seo, Seong Yeon Park, Juwon Jang, Yunho Ahn, Samiksha Mukesh Jain, Samrat Das Adhikari, Harumi Correa‐Leiva, Ignacio Utreras‐Asenjo, Oscar A. Douglas‐Gallardo, Carina Pareja‐Rivera, Kayoung Cho, Byeongsung Kim, Jhonatan Rodriguez‐Pereira, Eunseo Choi, JaeHong Park, Jin Ho Bang, Danilo H. Jara‐Quinteros, Sixto Giménez, Seog Joon Yoon, Andrés F. Gualdrón‐Reyes, Iván Mora‐Seró   +21 more
wiley   +1 more source

Active Vibration Control for a CNC Milling Machine

, 2013
There is a requirement for improved three-dimensional surface characterisation and reduced tool wear when modern computer numerical control (CNC) machine tools are operating at high cutting velocities, spindle speeds and feed rates.
Longstaff, Andrew P., Myers, A., Lockwood, S., Longstaff, A., Haase, Frerk, Haase, F., Ford, Derek G., Ford, D. G., Myers, Alan, Lockwood, Stephen   +9 more
core   +1 more source

Stability and performance limits for active vibration isolation using blended velocity feedback

, 2022
S.4981-4997This paper presents a theoretical study of active vibration isolation on a two degree of freedom system. The system consists of two lumped masses connected by a coupling spring.
Alujevi, N., Tomac, I., Gardonio, P., Wolf, H.   +3 more
core   +1 more source

Polymer Interface Enables Reversible Quasi‐Solid Sulfur Conversion in Sodium‐Sulfur Batteries

Advanced Functional Materials, EarlyView.
The polymer interface enables a stable quasi‐solid sulfur conversion pathway in room‐temperature Na─S batteries. The coating regulates Na+ transport, stabilizes the cathode–electrolyte interphase, and accommodates mechanical stress, suppressing electrolyte decomposition and sulfur migration, thereby improving reaction uniformity, reducing polarization,
Reza Andaveh, Ying Zhao, Enzhong Jin, Zixin Zhang, Vinicius Martins, Parham Pirayesh, Yi Gan, Yi Yuan, Yijia Wang, Frederick Benjamin Holness, Changhong Cao, Jun Song, Yang Zhao   +12 more
wiley   +1 more source

Analysis and optimal design of a vibration isolation system combined with electromagnetic energy harvester [PDF]

, 2019
This work investigates a vibration isolation energy harvesting system and studies its design to achieve an optimal performance. The system uses a combination of elastic and magnetic components to facilitate its dual functionality.
Mofidian, SM Mahdi, Bardaweel, H., Diala, U., Lang, Z.-Q., Bardaweel, Hamzeh, Diala, Uchenna, Lang, Zi-Qiang, Mofidian, S.M.M.   +7 more
core   +1 more source

Moving Beyond Oligoethers: Polar Side‐Chain Engineering for Aqueous Mixed Ionic–Electronic Conductors

Advanced Functional Materials, EarlyView.
We investigate how side‐chain chemistry and hydrogen bonding affect electrochemical doping in poly(propylenedioxythiophene) polymers. Replacing oligoether side chains with hydroxyl or carboxylic acid groups nearly triples electrochemical conductivity.
Joshua M. Rinehart, Anna M. Österholm, James F. Ponder Jr., Lucas Q. Flagg, Lee J. Richter, John R. Reynolds   +5 more
wiley   +1 more source

Multi-variable geometry repair and optimization of passive vibration isolators

, 2007
A range of techniques are considered for the search of a high dimensional design landscape with extensive, unknown and disjointed regions of infeasibility.
Andy Keane, Keane, Andy J., Keane, A.J., Forrester, A.I.J., Alexander Forrester, Forrester, Alexander I.J.   +5 more
core   +1 more source

Assessment of railway vibrations using an efficient scoping model [PDF]

, 2014
Vibration assessments are required for new railroad lines to determine the effect of vibrations on local communities. Low accuracy assessments can significantly increase future project costs in the form of further detailed assessment or unexpected ...
Woodward, P. K., Verlinden, Olivier, Connolly, D. P., Connolly, D.P., Woodward, Peter, Kouroussis, Georges, Forde, M.C., Connolly, David, Forde, M. C., Forde, Michael, Giannopoulos, Antonios; id_orcid, Woodward, P.K., Giannopoulos, A, Forde, MC, Kouroussis, G., Verlinden, O, Giannopoulos, A., Verlinden, O., Woodward, PK, Connolly, DP, Kouroussis, G   +20 more
core   +1 more source

The Design and Analysis of Active–Passive Hybrid Vibration Isolation Mounts Applied in Pump

Science and Technology of Nuclear Installations
Pump vibrations are noticeable in a wide frequency range when the nuclear power plant is operating, particularly in the low frequencies when line-spectrum vibrations are evident and complicated.
Jia Liu, Qiang Zhou, Lei Wu, Long-Qi Cai, Tiejun Yang, Yu Wang, Tong Lu   +6 more
doaj   +1 more source

Binder Engineering Suppresses Jahn–Teller‐Driven Mn Dissolution and Enables High‐Loading MnO2 Cathodes for Aqueous Zn‐Ion Batteries

Advanced Functional Materials, EarlyView.
A Zn2+‐coordinated poly(vinylidene fluoride) binder is shown to suppress Jahn–Teller‐driven Mn dissolution while improving dispersion, wettability, and structural integrity in thick MnO2 cathodes. This simple binder‐engineering strategy enables high‐loading aqueous Zn‐ion batteries with enhanced areal capacity, cycling stability, and practical promise ...
Insung Jang, Geun Yoo, Geon−Hyoung An
wiley   +1 more source