Results 71 to 80 of about 193,558 (283)

From Design to Prototype: High‐Sensitivity Tri‐Mode Operation Photodetectors Based on 1T‐2H Hybrid MoS2

Advanced Science, EarlyView.
This work demonstrates a phase‐engineered MoS2 photodetector that dynamically switches among photocapacitive (PCC), photovoltaic (PV), and photoconductive (PC) modes. By transforming the traditionally parasitic capacitance into an active signal source, the device achieves self‐powered, high‐sensitivity detection with a fast response of 19.2 ms, and a ...
Xinyu Li, Daxiu Tang, Jiaxin Guo, Xiao Zhang, Sihan Liu, Yaojun Yu, Qianqian Cheng, Chengwei Gao, Xiaoning Guan, Pengfei Lu, Fei Zhuge, Ying Xie, Changgui Lin, Xiang Shen, Haohai Yu, Huaijin Zhang, Jiyang Wang   +16 more
wiley   +1 more source

Elastic networks of the future: benefits for the Colombian internal telecommunication network

TecnoLógicas, 2015
The continuous growth in data demand is leading research to bring to light an efficient network using fiber optics and radioelectric spectrum. The next generation of networks will be the result of a convergence between the optical and wireless domain ...
Andrés F. Betancur-Pérez, Jhon J. Granada-Torres, Neil Guerrero-González   +2 more
doaj   +1 more source

Labour and capital saving technical change in telecommunications [PDF]

The Australian telecommunications sector is being improved and extended through substantial recent investment in intelligent technology such as digital switching, fibre optics, satellite and cellular transmission, and the Internet. These technologies are
Bloch, Harry, Coble-Neal, Grant, Madden, Gary G   +2 more
core   +1 more source

Development of a prototype for submarine communications in shallow waters [PDF]

, 2016
The Telecommunications Marine Laboratory (TML) of the University of Cádiz takes part in a research project to study the intertidal sediments of the Bay of Cádiz. The collection of samples from the seabed and the transmission of data to the surface are
Bohórquez Ferrando, Julio, Corzo Rodríguez, Alfonso, Figueroa Recio, Manuel, Gómez Castillo, Leopoldo, Mariscal Rico, Luis A., Papaspyrou, Sokratis, Rychkov, Eugene   +6 more
core  

Highly Sensitive Heterojunction‐Gated Phototransistor With Detection Wavelength Ranged From 350 to 1700 Nm

Advanced Science, EarlyView.
This work demonstrates a heterojunction‐gated infrared phototransistor for broadband detection from 350 to 1700 nm. By suppressing defect states on nonpolar (100) facets of large PbS quantum dots via hybrid ligand passivation, the device achieves a room‐temperature detectivity of 5.7 × 1013 Jones at 1650 nm.
Hongkun Duan, Wenyu Zhang, Tao Luo, XiaoLu Xia, Qianxi Yang, Ying Yan, Shengmei Gao, Xitian Yin, Yixiao Niu, Zhiyu Zhao, Jianbing Zhang, Haobin He, Jiang Tang, Ying Wang, Zhiyong Zhang   +14 more
wiley   +1 more source

A Framework Integrating Federated Learning and Fog Computing Based on Client Sampling and Dynamic Thresholding Techniques

IEEE Access
The exponential growth in the number of Internet of Things (IoT) devices and the vast quantity of data they generate present a significant challenge to the efficacy of traditional centralized training models. Federated Learning (FL) is a machine learning
Dang van Thang, Artem Volkov, Ammar Muthanna, Ibrahim A. Elgendy, Reem Alkanhel, Dushantha Nalin K. Jayakody, Andrey Koucheryavy   +6 more
doaj   +1 more source

Absorption‐Dominant Electromagnetic Interference Shielding of Ti3C2Tx MXene‐Coated and Fe3O4‐Integrated TPMS Composites with Coupled Gradient Conductivity and Size‐Graded Structure

Advanced Science, EarlyView.
A functionally driven variable‐cell size and gradient‐conductive coated TPMS structure was developed. Accordingly, stepwise longitudinal gradient impedance was realized, achieving absorption‐dominant EMI shielding (absorptivity≈0.85) with an EMI SET of ≈ 59 dB, for 10 mm‐thick composites. Further increasing the thickness of composites to 20 mm achieved
Abdallah Kamal, Baosong Li, Dawei Zhang, Muhammad Mujtaba Syed, Adam Otabil, Faisal Shahzad, Lianxi Zheng, Kin Liao   +7 more
wiley   +1 more source

CRLH Transmission Lines for Telecommunications: Fast and Effective Modeling

International Journal of Antennas and Propagation, 2017
A different parameter extraction approach based on zero immittances for composite right/left-handed (CRLH) structure is presented. For lossless unit cell equivalent circuit model, LC parameters of series and parallel branches are extracted according to ...
Juanjuan Gao, Guizhen Lu
doaj   +1 more source

LTE physical layer: Performance analysis and evaluation

Applied Computing and Informatics, 2019
3GPP LTE was proposed by cooperation between groups of telecommunications consortium named as 3rd Generation Partnership Project to improve the Universal Mobile Telecommunications System (UMTS) standard. It supports up to 300 Mbps of data transmission in
H. Mousavi, Iraj S. Amiri, M.A. Mostafavi, C.Y. Choon   +3 more
doaj   +1 more source

Satellite provided customer premises services: A forecast of potential domestic demand through the year 2000. Volume 1: Executive summary [PDF]

Development of a forecast of the total domestic telecommunications demand, identification of that portion of the telecommunications demand suitable for transmission by satellite systems, identification of that portion of the satellite market addressable ...
Al-Kinani, G., Bhushan, C., Bowyer, J., Kaushal, D., Kratochvil, D., Steinnagel, K.   +5 more
core   +1 more source