Results 121 to 130 of about 1,110,187 (308)

Vibration metrics for informational support in assessing the technical condition of ball mills

Горные науки и технологии
The technical condition of ball mills, employed in the fine grinding of minerals, ores, coal, cement clinker, and other materials, is dictated by both the operational load and the actual physical state of the equipment.
Vladimir F. Borisenko, Vladimir A. Sidorov, Andrey E. Sushko, Vyacheslav N. Rybakov   +3 more
doaj   +1 more source

Сhoosing the optimal parameters of some frequency meter’s units of microwave band [PDF]

Tekhnologiya i Konstruirovanie v Elektronnoi Apparature, 2011
The optimal parameters of UA Ч3-79M and UA Ч3-101 frequency meter’s units such as frequency synthesizer and intermediate frequency amplifier are analised.
Krival I. I., Skrypnyuk A. I., Protsenko V. A., Maryenko A. V.   +3 more
doaj  

The Energy-Levels and Transition Probabilities for a Bounded Linear Harmonic Oscillator [PDF]

, 1955
J. S. Baijal, K. K. Singh
openalex   +1 more source

Rapid Diagnostics of Reconfigurable Intelligent Surfaces Using Space‐Time‐Coding Modulation

Advanced Functional Materials, EarlyView.
A fast reconfigurable‐intelligent‐surface (RIS) diagnostics method is proposed based on spatio‐temporal modulation with orthogonal codes. Theoretical analysis demonstrates a clear distinction in code channel power between normal and faulty elements. Simulations validate its feasibility under high fault ratios and varying receiving angles.
Yi Ning Zheng, Lei Zhang, Xiao Qing Chen, Marco Rossi, Giuseppe Castaldi, Shuo Liu, Tie Jun Cui, Vincenzo Galdi   +7 more
wiley   +1 more source

Polynomial Approximation to Harmonic and Analytic Functions: Generalized Continuity Conditions [PDF]

, 1950
J. L. Walsh, Hannah Elliott
openalex   +1 more source

Double Helical Plasmonic Antennas

Advanced Functional Materials, EarlyView.
Plasmonic double helical antennas funnel circularly polarized light to the nanoscale, offering strong chiroptical interaction and directional light emission. Extending a single helix design tool, this study combines numerical modeling with experimental validation, revealing large, broadband dissymmetry factors in the visible range.
Aleksei Tsarapkin, Luka Zurak, Krzysztof Maćkosz, Lorenz Löffler, Victor Deinhart, Ivo Utke, Thorsten Feichtner, Katja Höflich   +7 more
wiley   +1 more source

Printing Nacre‐Mimetic MXene‐Based E‐Textile Devices for Sensing and Breathing‐Pattern Recognition Using Machine Learning

Advanced Functional Materials, EarlyView.
This study presents a Ti3C2Tx MXene/WPU nacre‐mimetic nanomaterial as a printable ink for direct‐write printing onto textiles‐based sensors. The resulting wearable device demonstrates high sensitivity, biocompatibility, and mechanical strength. Furthermore, NFC‐enabled humidity sensor produces time‐series data, which informs a machine learning ...
Lulu Xu, Wenqing Chen, Qian Li, Rohit Gupta, Biswajoy Bagchi, Laurence B. Lovat, Manish K. Tiwari   +6 more
wiley   +1 more source

On an equation ocurring in the harmonic analysis of viscous fluid flow [PDF]

, 1951
Richard Bellman
openalex   +1 more source

Harmonic monsters

Journal of Approximation Theory, 2003
AbstractLet Ω be a non-empty open subset of Rd, where d⩾2. A modern theorem on harmonic approximation is used to show that there exists a harmonic function h on Ω behaving wildly near every boundary point of Ω. The function h is analogous to the holomorphic monster functions of W. Luh.
openaire   +2 more sources

Cu2O/Cu Chiral Catalysts for Highly Selective Solar‐Assisted CO2‐to‐CO Electroreduction

Advanced Functional Materials, EarlyView.
To address the poor target‐product selectivity of the eCO2RR, breakthrough approaches based on the chiral‐induced spin selectivity phenomenon enhance the Faradaic efficiency (FE) for target hydrocarbons, such as CO. To induce this spin polarization strategy in Cu2O/Cu catalysts, it is proposed using amine‐based intermediate organic molecules with ...
Hyungsoo Lee, Young Sun Park, Eunji Kwon, Chang‐Seop Jeong, Juwon Yun, Subin Moon, Soobin Lee, Jun Hwan Kim, Donghyun Kim, Wooyong Jeong, Jaehyun Son, Jihwon Park, Seungho Yu, Jooho Moon   +13 more
wiley   +1 more source