Results 131 to 140 of about 125,693 (306)

Hydrogen‐Bond‐Rich Supramolecular Multiblock Copolymers Facilitate Rapid Zn2+ Migration in Quasi‐Solid‐State Zinc‐Ion Batteries

Advanced Functional Materials, EarlyView.
The disordered growth of dendrites, corrosion, parasitic side reactions, slow de‐solvation kinetics, and inherent safety risks significantly hinder the practical deployment of conventional liquid electrolyte zinc‐ion batteries. In contrast, the novel PU‐EG+DMPA‐Zn polyurethane quasi‐solid‐state electrolyte, enriched with abundant polar functional ...
Ruiqi Liu, Changding Wang, Fu Wan, Kaida Hu, Da Yang, Yaoyang Xia, Wenwei Yin, Yupeng Lin, Yuejiao Chen, Shuhui Sun, Weigen Chen   +10 more
wiley   +1 more source

Subsynchronous vibrations in a high pressure centrifugal compressor: A case history [PDF]

Two distinct aerodynamically excited vibrations in a high pressure low flow centrifugal compressor are documented. A measured vibration near 21% of running speed was identified as a nonresonant forced vibration which results from rotating stall in the ...
Evans, B. F., Smalley, A. J.
core   +1 more source

Experimental investigation on the dynamic characteristics and transverse vibration instabilities of transmission belts [PDF]

, 2008
Serpentine belt drives are often used in front end accessory drive of automotive engine. Dynamic characteristics of belts play an important role in the behavior of such transmission and are inputs of simulation software. Moreover, free belt spans exhibit
Besson, François, Dufour, Regis, Manin, Lionel, Michon, Guilhem   +3 more
core  

Tailoring Microstructure in Copper‐Based Conductive Metal–Organic Frameworks for Enhanced Chemiresistive Sensing and Uptake of Sulfur Dioxide

Advanced Functional Materials, EarlyView.
Precursor‐ and solvent‐mediated synthesis yields four Cu3(HHTP)2 morphologies with distinct physicochemical, sorption, and sensing properties toward SO2. Uptake capacities correlate with BET surface area, while sensing performance scales with particle aspect ratio.
Patrick Damacet, Zhuoran Zhong, Elí Sánchez‐González, Camille L. Slagle, Ilich A. Ibarra, Katherine A. Mirica   +5 more
wiley   +1 more source

Tłumienie Falami Naprężeń w Belkach Sprężystych

Engineering Transactions, 1958
An analogy is indicated between vibrations in elastic bodies and in liquids. In a number of cases of forced vibration of infinite elastic beams, reaction forces of these beams are found.
J. Więckowski
doaj  

Multi‐Ion Doping Controlled CEI Formation in Structurally‐Stable High‐Energy Monoclinic‐Phase NASICON Cathodes for Sodium‐Ion Batteries

Advanced Functional Materials, EarlyView.
The graphical abstract illustrates the synthesis pathway, morphological feature, and thermodynamic feasibility of entropy‐engineered NASICON cathodes for sodium‐ion batteries. Abstract Overcoming the energy density limitations of sodium‐ion batteries (NIBs) requires innovative strategies to optimize cathode materials.
Sharad Dnyanu Pinjari, Vignesh Mahalingam, Purandas Mudavath, Malavika Aarayil, Tasdique Arman, Ipsita Pal, Dipan Kundu, Raghavan Ranganathan, Ashok Kumar Nanjundan, Rohit Ranganathan Gaddam   +9 more
wiley   +1 more source

Forced vibrations of systems with nonlinear restoring force [PDF]

Quarterly of Applied Mathematics, 1943
Friedrichs, K. O., Stoker, J. J.
openaire   +2 more sources

NASTRAN forced vibration analysis of rotating cyclic structures [PDF]

Theoretical aspects of a new capability developed and implemented in NASTRAN level 17.7 to analyze forced vibration of a cyclic structure rotating about its axis of symmetry are presented.
Elchuri, V., Gallo, A. M., Smith, G. C. C.   +2 more
core   +1 more source

High‐Entropy Perovskite Nanofibers for Bifunctional Air Electrodes in Reversible Protonic Ceramic Electrochemical Cells

Advanced Functional Materials, EarlyView.
High‐entropy perovskite nanofibers serve as robust and active bifunctional air electrodes in reversible protonic ceramic electrochemical cells. Their compositional complexity stabilizes the lattice, enriches oxygen vacancies, and accelerates surface exchange.
Hyeonggeun Kim, Incheol Jeong, Seeun Oh, Dongyeon Kim, Kang Taek Lee   +4 more
wiley   +1 more source

Viking Mars lander 1975 dynamic test model/orbiter developmental test model forced vibration test [PDF]

The Viking Mars Lander 1975 dynamic test model and orbiter developmental test model were subjected to forced vibration sine tests. Flight acceptance (FA) and type approval (TA) test levels were applied to the spacecraft structure in a longitudinal test ...
Brownlee, G. R., Fortenberry, J.
core   +1 more source