Results 131 to 140 of about 17,709 (313)

Cationic Sulfonium‐Based Tripodal Ligand and Its Rh(I) Complexes

Chemistry – A European Journal, EarlyView.
We report a cationic EP3‐type tripodal ligand based on an aromatic sulfonium cation (E = S+) along with a series of its Rh(I) complexes. Structural, spectroscopic, electrochemical, and computational analyses of these complexes compared to isostructural analogs (E = Si− or P) reveal pronounced electron density depletion at Rh in the sulfonium congener ...
Nitsan Barel, Shrouq Mujahed, Kamal Uddin Ansari, Katarzyna Młodzikowska‐Pieńko, Renana Gershoni‐Poranne, Yuri Tulchinsky   +5 more
wiley   +1 more source

Delay-Doppler-Domain Channel Estimation and Reduced-Complexity Detection of Faster-Than-Nyquist Signaling Aided OTFS

IEEE Open Journal of Vehicular Technology
We conceive a novel channel estimation and data detection scheme for OTFS-modulated faster-than-Nyquist (FTN) transmission over doubly selective fading channels, aiming for enhancing the spectral efficiency and Doppler resilience.
Zekun Hong, Shinya Sugiura, Chao Xu, Lajos Hanzo   +3 more
doaj   +1 more source

Dinuclear Copper(I) Complexes Featuring Metal–Metal Interactions and a μ2‐Bridging Phosphane With Additional Olefinic Binding Sites

Chemistry – A European Journal, EarlyView.
A Cu2P triangle captured in a tetrapodal phosphane tris(olefin) ligand, where all binding forces are weak apart from the Cu─P interaction. ABSTRACT The molecule Ptrop3 contains in each trop unit (trop = dibenzo[a,d]cyclohepten‐5‐yl) a rigid central seven‐membered ring with an olefinic binding site making Ptrop3 potentially a tetradentate ligand ...
Zhongshu Li, Daniel Himmelbauer, Jan Oswald, Michael Wörle, René Verel, Zoltán Benkő, Hansjörg Grützmacher   +6 more
wiley   +1 more source

Dual Acid Responses of Stable Luminescent Diphenylpyridylmethyl Radicals With Additional Pyridyl Groups

Chemistry – A European Journal, EarlyView.
To expand the acid‐responsive behavior of diphenylpyridylmethyl stable luminescent radicals, additional pyridyl groups were introduced. Dual acid responsiveness was observed, involving both the newly incorporated pyridyl groups and the PyBTM moieties.
Yohei Hattori, Kojiro Nakagawa, Kingo Uchida, Gwénaël Rapenne   +3 more
wiley   +1 more source

OTFS: A Potential Waveform for Space–Air–Ground Integrated Networks in 6G and Beyond

Telecom
6G is expected to provide ubiquitous connectivity, particularly in remote and inaccessible environments, by integrating satellite and aerial networks with existing terrestrial networks, forming Space–Air–Ground Integrated Networks (SAGINs).
Obinna Okoyeigbo, Xutao Deng, Agbotiname Lucky Imoize, Olamilekan Shobayo   +3 more
doaj   +1 more source

Bottlenecks‐Breaking in Zinc‐Iodine Batteries Toward Practical Implementation: A Review and Perspective

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Aqueous zinc–iodine batteries (Zn–I2Bs) offer promise for grid storage due to safety and cost advantages yet face critical bottlenecks: severe self‐discharge (polyiodide shuttling and HER), limited energy density, sluggish kinetics, and zinc anode instability.
Jia‐Lin Yang, Jun‐Ming Cao, Dai‐Huo Liu, Xing‐Long Wu   +3 more
wiley   +1 more source

Research status of channel estimation and signal detection techniques for orthogonal time frequency space modulation

Tongxin xuebao
Orthogonal time frequency space (OTFS) modulation is a multiplexing technique designed in the two-dimensional (2D) delay-Doppler domain suited for high Doppler fading channels. OTFS converts a doubly-selective channel into an almost non-fading channel in
WANG Yongchuan, ZHOU Ping, HUANG Ju
doaj   +2 more sources

Outage analysis of OTFS system over time-varying and block time-varying Rician fading channels

Results in Engineering
Orthogonal Time Frequency Space (OTFS) modulation is a potential radio interface technique for integrated terrestrial and non-terrestrial networks due to its resilience against severe Doppler spread and high carrier frequency offsets.
Vangara Saiprudhvi, Hariharan Subramaniyam   +1 more
doaj   +1 more source

Enabling High‐Loading Aqueous Zinc–Sulfur Batteries Via a Ni Single‐Atom Catalytic Host with Hierarchical Sulfur Reservoirs

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A Ni single‐atom‐anchored N‐doped carbon hollow host synergizes atomic Ni‐N4 sites with a hierarchical porous skeleton, enabling high‐sulfur‐loading aqueous Zn–S batteries with high capacity, low polarization, and excellent cycling stability for flexible energy storage.
Zuoshu Wang, Xueyan Yang, Guochao Zhao, Dewei Wang, Yuhong Chen   +4 more
wiley   +1 more source

Synergistic Design of Composite Ionogels With Enhanced Thermoelectric Properties, Mechanical Stretchability, and Sustainable Recyclability

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
While flexible TE devices hold promise for converting low‐grade waste heat (e.g., from human skin or electronics) into usable electricity, existing materials suffer from three major limitations: 1) poor mechanical stretchability (failing to match human skin's elongation, ~20–30%), limiting wearability; 2) tradeoffs between thermoelectric efficiency (e ...
Mingqi Liu, Eerqizi Yang, Hang Fu, Huining Liu, Hee‐Tae Jung, Cheng Jin An   +5 more
wiley   +1 more source