Results 111 to 120 of about 4,468,856 (284)

Joint Source Coding, Unity Rate Precoding and FFH-MFSK Modulation using Iteratively Decoded Irregular Variable Length Coding

, 2007
Serially concatenated and iteratively decoded Irregular Variable Length Coding (IrVLC) combined with precoded Fast Frequency Hopping (FFH) M-ary Frequency Shift Keying (MFSK) is considered.
Ahmed, S., Lie-Liang Yang, Robert G. Maunder, Soon Xin Ng, Ng, S. X., Yang, L-L., Hanzo, L., Lajos Hanzo, Maunder, R. G., Sohail Ahmed   +9 more
core   +1 more source

Cooperative Goniopolar and Anomalous Nernst Transverse Thermoelectricity in Kagome Magnets

Advanced Materials, EarlyView.
A cooperative transverse thermoelectric mechanism is realized in kagome magnets, where axis‐dependent goniopolar effects and Berry curvature‐driven anomalous Nernst coexist within the same energy window. In MgMn6Sn6, this intrinsic synergy yields a record room‐temperature transverse thermopower of 15.6 µV K−1, establishing a general strategy for high ...
Honghui Wang, Xiaolong Feng, Haihua Hu, Xuemin Shi, Ralf Koban, Walter Schnelle, Wenzhi Peng, Dazhi Hou, Jianjun Ying, Bin He, Yu Pan, Xiaoyuan Zhou, Claudia Felser   +12 more
wiley   +1 more source

Real-Time Integrated Photonic Dehopping of Terahertz Frequency-Hopping Signals Around the 300 GHz Band Using Electro-Optically Tunable Lasers

Photonics
We propose and experimentally demonstrate an integrated photonic terahertz (THz) frequency-hopping (FH)/dehopping system using electro-optically wavelength-tunable lasers to enhance physical-layer security in terahertz wireless links.
Bo Li, Shenghong Ye, Ming Che, Naoto Masutomi, Yuya Mikami, Yuta Ueda, Kazutoshi Kato   +6 more
doaj   +1 more source

In Situ Lithium Nitridosilicate Interlayer via Reactive Anolyte Design for All‐Solid‐State Silicon Anodes

Advanced Materials, EarlyView.
Interfacial reactions in all‐solid‐state batteries are conventionally suppressed; here, they are designed. Vacancy‐rich β‐Li3N, acting as an anolyte, reacts controllably with silicon during composite anode fabrication, building a purpose‐made lithium nitridosilicate interlayer on every particle surface.
Tongtai Ji, Huanyao Ge, Luisa Gomes, Conan Weiland, Aswin kumar Anbalagan, Jochem Struppe, Jason Guo, Andrew L. Walter, Sanjeev Mukerjee, Huidong Dai   +9 more
wiley   +1 more source

Parameter Estimation Algorithm for Suppression Jamming Signals Based on an Improved YOLOv8

Information
In military confrontations, intentional suppression jamming can significantly degrade the reliability of friendly communication systems. By integrating conventional frequency hopping with spectrum sensing, cognitive frequency hopping technology can ...
Hangyu Yang, Zhaoran He, Lu Xu, Rui Xue
doaj   +1 more source

A Family of Sodium Solid‐State Electrolytes Based on the NaGaxAl1‐xCl4 Solid Solution

Advanced Materials Interfaces, EarlyView.
ABSTRACT Sodium‐based metal chloride solid electrolytes are promising for sodium solid‐state batteries due to their excellent oxidation stability, which, as shown for Li halides, can coexist with high ionic conductivity. To explore cationic substitution effects, we synthesized NaGaxAl1‐xCl4 (0 ≤ x ≤ 1) via ball milling and investigated structural and ...
Hao Guo, Matteo Bianchini
wiley   +1 more source

Framework Flexibility on Water Sorption and Transport in ZIF‐90: Insights from Neural‐Network Molecular Dynamics

Advanced Materials Interfaces, EarlyView.
A DeepMD‐based molecular dynamics framework is developed to investigate water adsorption in ZIF‐90, explicitly accounting for framework flexibility. Results show that atomistic flexibility significantly influences adsorption energetics, diffusion, and structural correlations, yielding nearly constant heat of adsorption and enhanced mobility.
Nick Mackus, Ionut Tranca, Veerapandian Ponnuchamy, Silvia Gaastra‐Nedea   +3 more
wiley   +1 more source

A Coherent Integration Method for Moving Target Detection in Frequency Agile Signal-Based Passive Bistatic Radar

Remote Sensing
In this paper, the possibility of improving target detection performance in passive bistatic radar by exploiting a frequency agile (FA) signal is investigated, namely frequency agile signal-based passive bistatic radar (FAPBR) coherent integration. Since
Luo Zuo, Nan Li, Jie Tan, Xiangyu Peng, Yunhe Cao, Zuobang Zhou, Jiusheng Han   +6 more
doaj   +1 more source

Thermal Enhancement of TADF‐OLED Performance: Size of Active Area Matters

Advanced Materials Interfaces, EarlyView.
Large‐area TADF‐based OLEDs can be used as thermally assisted light‐emitting devices, in which moderate waste heat can partially compensate for efficiency losses associated with increasing active area. ABSTRACT Temperature significantly impacts the performance of light‐emitting diodes, typically causing degradation as they heat up. However, OLEDs using
Demyd V. Pekur, Denis M. Khmil, Petro S. Smertenko, Alexander N. Fedoryak, Chih‐Hung Ko, Chih‐Hao Chang, Dovydas Blazevicius, Gintare Krucaite, Saulius Grigalevicius, Oleg P. Dimitriev   +9 more
wiley   +1 more source

A Fast and High-Precision Satellite-Ground Synchronization Technology in Satellite Beam Hopping Communication

Space: Science & Technology
A key requirement for future multibeam broadband satellite communication systems is the ability to flexibly adjust beam capacity according to changes in business distribution, in order to meet time-varying business requirements.
Tengfei Hui, Shenghua Zhai, Zehui Zhang, Chong Liu, Xianfeng Gong, Zhitong Ni, Kai Yang   +6 more
doaj   +1 more source