Results 111 to 120 of about 1,627,427 (287)

A Resource Allocation Algorithm Based on Subcarrier Pairing in Multi-User Cooperative Relay Communication

Dianxin kexue, 2014
For the power minimization problem in multi-user cooperative relay communications,a resource allocation algorithm based on joint subcarrier pairing and assignment was proposed.Firstly,according to the average channel gain and the target rates of user,the
Bin Chen, Youming Li, Tao Guo, Peng Lei, Xiaoqing Liu   +4 more
doaj   +2 more sources

Genetically Programmed Shape‐Morphing of Engineered Living Materials

Advanced Functional Materials, EarlyView.
Here, bacterial and mammalian engineered living materials (ELMs) are presented, in which living cells direct genetically programmed and enzymatically mediated shape‐morphing. The resulting deformation and shape‐recovery can be actuated in a genetically controlled manner by an ELM incorporating out‐of‐equilibrium counteracting biochemical reactions with
Jan Becker, Yuchen Liu, Miguel Baños, Rosanne Schmachtenberg, Mahmudul Hasan, Claudia Fink‐Straube, Luai R. Khoury, Wilfried Weber   +7 more
wiley   +1 more source

Stepped annealing chaotic neural network model for the channel assignment problem

Tongxin xuebao, 2008
Based on the stepped annealing method used in transient chaotic neural network,a chaotic neural network model had been improved. The dividing point in the new model was chosen according to the change of the corresponding Lyapunov exponent,and made sure ...
ZHU Xiao-jin, CHEN Yan-chun, SHAO Yong, WANG Jian   +3 more
doaj   +2 more sources

Fiber‐Based Wearable Electronics as Adaptive Biointerfaces for Healthcare Applications

Advanced Functional Materials, EarlyView.
Fiber‐based wearable electronics have been extensively studied as adaptive healthcare biointerfaces. In this review, we classify and introduce fiber‐based systems according to biointerface design, conductive materials, transduction mechanisms, and healthcare applications, and provide a perspective on their translation toward reliable, continuous ...
Sangwoo Hong, Jinsol Kim, Yoonjae Jeong, Sejong Kang, Daeho Lee, Seung Hwan Ko   +5 more
wiley   +1 more source

Survey on cluster-based routing protocols for cognitive radio sensor networks

Tongxin xuebao, 2018
Routing protocols could achieve efficient convergecast transmission of sensed data in cognitive radio sensor network (CRSN),and it is of vital importance for the whole network performance.In particular,cluster-based routing protocols could further lower ...
Jihong WANG, Wenxiao SHI
doaj  

Nitride MXenes Beyond Carbides: Bridging the Gap Between Computational Prediction and Experimental Realization

Advanced Functional Materials, EarlyView.
Nitride MXenes remain constrained by a persistent gap between computational prediction and experimental realization. This Review identifies the thermodynamic, kinetic, and chemical barriers limiting their synthesis, critically evaluates emerging fabrication routes, and proposes a multidimensional computational‐experimental framework to accelerate the ...
Naresh Varnakavi, Masoud Soroush
wiley   +1 more source

Polymer Side‐Chain Electronic Effects Regulating Solvation Sheath for Low‐Temperature and High‐Voltage Lithium Metal Batteries

Advanced Functional Materials, EarlyView.
This work reveals the influence of polymer side‐chain electronic effects on the Li+ solvation sheath in gel polymer electrolytes. Electron‐donating side chains induce the strong Li+ coordination and FDMA‐dominated solvation, impeding Li+ desolvation, whereas electron‐withdrawing side chains weaken Li+ coordination, facilitating anion‐rich solvation and
Xianbin Wu, Zhenxiang Zhu, Haotian Yang, Dayao Zhang, Zhen Geng, Cunman Zhang, Mingzhe Xue, Jian Wang   +7 more
wiley   +1 more source

Mechanics of Telson Ridges in Mantis Shrimp for Impact Analysis and Implications for Bioinspired Elastic Shell Designs

Advanced Functional Materials, EarlyView.
The mantis shrimp telson reveals how ridged biological shields control deformation under impact. Inspired by this architecture, telson‐inspired ridged curved shells transform ridge geometry and macroscopic curvature into bidirectional snap‐through, tunable stiffness, and enhanced hysteretic energy dissipation for multifunctional architected materials ...
Phani Saketh Dasika, Adwait Trikanad, Wei Huang, Taige Hao, David Kisailus, Pablo D. Zavattieri   +5 more
wiley   +1 more source

Mobility-aware pilot assignment for UAV-only CF-mMIMO networks

ICT Express
Unmanned aerial vehicles (UAVs) introduce severe pilot contamination challenges in cell-free massive multiple-input multiple-output (CF-mMIMO) networks due to high mobility and rapidly varying channel conditions.
Haider Salih Mahdi, Jafar Pourrostam
doaj   +1 more source

Efficient distributed algorithms for dynamic channel assignment

, 1996
The efficiency of channel assignment in a cellular telephone system is considered using the measures of successful channel assignment ratio as well as response time. Existing paradigms of mutual. exclusion and dining philosophers from distributed systems
Singh, Ambuj K., Choy, Manhoi, M. Choy, A.K. Singh   +3 more
core   +1 more source