Results 111 to 120 of about 2,964,809 (287)

Bioengineered Interfaces for Peripheral Nerve Sensory Restoration

Advanced Materials, EarlyView.
Half of amputees abandon their prosthetics for lack of feeling. This review charts the full path from peripheral nerve injury to restored sensation, through surgical, regenerative, noninvasive, and implanted approaches, and shows how injury type and interface material properties determine which strategy can deliver naturalistic feedback, and why ...
Sydney Swedick, Salim El Hadwe, Kesi Liang, George G. Malliaras, Damiano G. Barone   +4 more
wiley   +1 more source

Linear complexity of two classes of optimal sets frequency-hopping sequences

Tongxin xuebao, 2012
By using a type of permutation polynomials which were different from power permutations,the two classes of frequency-hopping sequence sets with low linear complexity was transformed into the ones with high linear complexity.The exact values of linear ...
Jun-tao GAO, Yu-pu HU, Xue-lian LI, Shang-rong XIANG   +3 more
doaj   +2 more sources

Deep Reinforcement Learning-Based Anti-Jamming Approach for Fast Frequency Hopping Systems

IEEE Open Journal of the Communications Society
Increasing the hopping frequency speed and integrating artificial intelligence (AI) technologies are currently two of the most effective strategies for enhancing the anti-jamming performance of frequency hopping (FH) systems.
Sixi Cheng, Xiang Ling, Lidong Zhu
doaj   +1 more source

Spectral Sensing of Adaptive Frequency Hopping Signal for Cognitive Radio

, 2008
The issue of dynamic spectrum scene analysis in any cognitive radio network becomes extremely complex when low probability of intercept, spread spectrum systems are present in environment.
Jaiswal, Kapil
core  

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

Performance of Hybrid Direct-Sequence Time-Hopping Ultrawide Bandwidth Systems over Nakagami-m Fading Channels

, 2007
This paper investigates and compares the performance of various ultrawide bandwidth (UWB) systems when communicating over Nakagami-m fading channels. Specifically, the direct-sequence (DS), time-hopping (TH) and hybrid direct-sequence time-hopping (DS-TH)
Yang, Lie-Liang, Ahmed, Qasim Zeeshan
core   +1 more source

Realization of frequency hopping characteristics of an epsilon negative metamaterial with high effective medium ratio for multiband microwave applications. [PDF]

Sci Rep, 2021
Islam MT, Moniruzzaman M, Alam T, Samsuzzaman M, Razouqi QA, Almutairi AF.   +5 more
europepmc   +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

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

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