Results 101 to 110 of about 2,444,704 (306)

IRS Assisted Decentralized Learning for Wideband Spectrum Sensing

The increasing demand for reliable connectivity in industrial environments necessitates effective spectrum utilization strategies, especially in the context of shared spectrum bands. However, the dynamic spectrum-sharing mechanisms often lead to significant interference and critical failures, creating a trade-off between spectrum scarcity and under ...
Sicheng Liu, Qun Wang, Zhuwei Qin, Weishan Zhang, Jingyi Wang, Xiang Ma   +5 more
openaire   +3 more sources

Disentangling Bulk and Surface Contributions to Charge and Discharge Fading in High‐Voltage LiCoO2

Advanced Functional Materials, EarlyView.
High‐voltage operation of LiCoO2 accelerates capacity fading through bulk and surface degradation. By introducing a LiTaO3 coating to selectively suppress surface degradation, bulk and surface contributions to charge and discharge fading are decoupled.
Hyungjoon Moon, Sangbin Park, Jaewoo Jung, Seongeun Lee, Chanwoo Jung, Min‐Sik Park, Won‐Sub Yoon   +6 more
wiley   +1 more source

Theoretical Investigation of C_60 IR Spectrum

, 1996
A semi-empirical model of the infrared (IR) spectrum of the C$_{60}$ molecule is proposed. The weak IR-active modes seen experimentally in a C$_{60}$ crystalline sample are argued to be combination modes caused by anharmonicity. The origin of these 2-mode excitations can be either mechanical (anharmonic interatomic forces) or electrical (nonlinear ...
openaire   +2 more sources

Coordinated Architectural and Chemical Reinforcement in the Crushing Mandible of a Soldier Termite

Advanced Functional Materials, EarlyView.
The crushing mandible of a soldier termite withstands substantial biting loads despite lacking mineral. Its cuticle is partitioned: convex teeth pair hardness and zinc enrichment with aligned chitin fibers for contact durability, while stiffer concave regions between teeth carry bending loads.
Andrew Tran Nguyen, Patryk Wąsik, Juan Fernando Cucuyame Morales, Marie Kate Palau, Adrian Francisco Duran Ornelas, Phani Saketh Dasika, Jin Hee Kim, Radhika Laxminarayana, Eric Hintsala, Greta Chang, Junzhi Liao, Lizhi Sun, Nathan Lord, Atsushi Arakaki, Paul Bardunias, Pablo Zavattieri, David Kisailus   +16 more
wiley   +1 more source

Psichologizmas, natūralizmas ir nihilizmas (fenomenologinė kritika) [PDF]

, 2006
The article discusses Husserl’s criticism of Psychologism and the relationship that have with the contemporary crisis of values. In Lo­gical Investigation Husserl criticize not only a psychological foundation of science, but he expresses his ...
Jonkus, Dalius
core   +1 more source

Impact of non-covalent interactions on FT-IR spectrum and properties of 4-methylbenzylammonium nitrate. A DFT and molecular docking study. [PDF]

Heliyon, 2021
Medimagh M, Issaoui N, Gatfaoui S, Antonia Brandán S, Al-Dossary O, Marouani H, J Wojcik M.   +6 more
europepmc   +1 more source

Synthesis, IR Spectrum and Crystal Structure of a,a′-Dipyridyldi(iodineazide)/Synthesis, IR Spectrum and Crystal Structure of a,a′-Dipyridyldi(iodineazide)

Zeitschrift für Naturforschung B, 1983
Abstract The complex [a,a′-dipyridyl(IN3)2] can be prepared by reaction of a,a′-dipyridyl with iodine azide in CH2CI2 solution. It forms stable, yellow, moisture-sensitive crystals of melting point 73 °C. According to the IR spectrum the IN3 molecules are covalently bonded to the N atoms of the dipyridyl via the iodine atoms.
Hans Dörner, Kurt Dehnicke, Kurt Dehnicke, Werner Massa, Roland Schmidt   +4 more
openaire   +1 more source

2D Co‐Assembly of Solid Acids Enables Stable Superprotonic Conduction Above 260°C

Advanced Functional Materials, EarlyView.
A two‐dimensional co‐assembly strategy integrates antimony phosphate and phosphotungstic acid nanosheets into free‐standing inorganic lamellar membranes with confined acid–acid interfaces. The resulting interfacial hydrogen‐bond network enables anhydrous proton conductivity exceeding 0.1 S cm−1 at 260°C and supports stable high‐temperature fuel‐cell ...
Qiuning Li, Kaiqiang He, Dehua Dong, Fanmengjing Wang, Xiangcheng Liu, Zhikao Li, Jacek J. Jasieniak, Paul A. Webley, Huanting Wang   +8 more
wiley   +1 more source

Balancing Hydrophobicity and Hydrophilicity: Dual Filler‐Engineered Proton Exchange Membranes for Durable, High‐Power Fuel Cells

Advanced Functional Materials, EarlyView.
Polarity‐matched Zr–MOFs program Nafion's nanoscale morphology during solution casting. Hydrophilic UiO‐66 preserves hydrated pathways, while hydrophobic UiO‐67 increases the proton hopping sites by densifying ionic clusters. Combining both fillers yields a membrane that delivers 176 mS cm−1 conductivity, reaches 1.46 W cm−2 under 200 kPa, and triples ...
Yonghwi Cho, Yunseong Ji, Minkyu Choi, Junsu Kim, Yejin Kim, Su Jeong Lee, Wooyoung Choi, Choong Hoo Lee, Ju Yeon Kim, Ohchan Kwon, Hanim Kim, Du Yeol Ryu, Ki Chul Kim, Dae Woo Kim   +13 more
wiley   +1 more source

Spectral Analyses of a Novel Ibuprofen-Phillygenin Ester

Chinese Journal of Magnetic Resonance, 2018
An ibuprofen-phillygenin ester was synthesized through the Schotten-Baumann reaction with ibuprofen and phillygenin as the starting materials. Ultraviolet absorption (UV) spectrum, infrared absorption (IR) spectrum, matrix-assisted laser desorption ...
FAN Hong-yu
doaj   +1 more source