Results 41 to 50 of about 18,715,274 (294)

Vehicles detection through wireless sensors networks and optical fiber sensors

Scientific Reports
Due to the evolving variations in government and political systems both domestically and internationally, along with the imposition of high tariffs at borders, these borders have become vulnerable points for terrorism and smuggling activities ...
Hacen Khlaifi, Amira Zrelli, Tahar Ezzedine   +2 more
doaj   +1 more source

Numerical Investigation of the Equalization Enhanced Phase Noise Penalty for M-Quadrature Amplitude Modulation Formats in Short-Haul Few-Mode Fiber Transmission Systems with Time-Domain Equalization

Applied Sciences, 2018
The equalization enhanced phase noise (EEPN), caused by the interaction of the chromatic dispersion (CD) with the phase noise of the local oscillator (LO), has been extensively studied for single-mode optical communication systems.
José Manuel Delgado Mendinueta, Werner Klaus, Jun Sakaguchi, Satoshi Shinada, Hideaki Furukawa, Yoshinari Awaji, Naoya Wada   +6 more
doaj   +1 more source

Communications report 2011–12 [PDF]

, 2012
ACMA has released a suite of targeted reports that complement the Communications report 2011–12. These reports are to inform Australians, and more specifically ACMA stakeholders, about how convergence is transforming communications and media ...

core  

Multifunctional Neutrophil Nanovesicles Induce Remodeling of Tumor Immune Microenvironment and Synergistic Multimodal Tumor Therapy

Advanced Functional Materials, EarlyView.
Schematic illustration of the engineered RN@FDT for multimodal tumor therapy. a) Fabrication of FD&DOX/TFA‐loaded RGD‐NNV (RN@FDT) and the light‐triggered disassemble of RN@FDT. b) After internalized by tumor cells, RN@FDT are disintegrated under NIR‐II laser irradiation to boost PTT and induce cell apoptosis.
Jiahui Zhang, Cheng Ji, Xin‐Jian Fang, Yu Qian, Jiayuan Shi, Wenhui Liu, Baiyuan Fan, Yuan Zhong, Jiayi Wang, Dan Yu, Maoye Wang, Min Fu, Xiaoxin Zhang, Runbi Ji, Hélder A. Santos, Hongbo Zhang, Xu Zhang   +16 more
wiley   +1 more source

Architecture‐Driven Functional Coupling in Vertically Aligned Nanocomposites

Advanced Functional Materials, EarlyView.
Vertically aligned nanocomposites define a growth‐engineered architecture in which vertical interfaces, strain fields, defect pathways, and phase connectivity are created simultaneously. This review shows how these architectural features couple ferroic, optical, ionic, electrochemical, and device responses, establishing design rules and open challenges
Md Shatil Islam‐Shanto, Javier Zamudio‐García, Abraham Sánchez‐Caballero, David Marrero‐López, Vincenzo Esposito   +4 more
wiley   +1 more source

Performance Evaluation of Distributed-Antenna Communications Systems Using Beam-Hopping

, 2005
Digital beamforming (DBF) techniques are capable of improving the performance of communications systems significantly. However, if the transmitted signals are conflicted with strong interference, especially, in the direction of the transmitted beams ...
Yang, L.-L., Zhu, J., Hu, H.
core   +1 more source

High speed train communications systems using free space optics [PDF]

, 2010
In this work, we propose a broad-band free space optical (FSO) wireless communications system for high-speed trains. The system consists of optical transceivers positioned outside the train and along the railway track.
Ghassemlooy, Zabih, Paudel, Rupak, Rajbhandari, Sujan, Le Minh, Hoa, Iaz, M.   +4 more
core  

Reliability analysis and redundancy design of smart grid wireless communications system for demand side management

, 2012
To ensure efficient, continuous, and secure operation of the next generation smart power grid, the reliability of its data communications system, and in particular, the wireless communications system will be crucial.
Niyato, Dusit, Hossain, Ekram, Wang, Ping   +2 more
core   +1 more source

Drop‐on‐Demand Printed Negative Dielectric Anisotropy Liquid Crystal Droplets for Adaptive Complex Beam Manipulation and Assessment

Advanced Functional Materials, EarlyView.
Printed negative‐dielectric‐anisotropy liquid‐crystal droplets enable multidimensional full‐vectorial optical‐field sensing across polarization, phase, and wavelength, while also generating tunable skyrmionic‐like complex optical fields. ABSTRACT Adaptive manipulation of vectorial optical fields is important for optical metrology, imaging, and ...
Jinge Guo, Xuke Qiu, Runchen Zhang, Qihao Han, Liangyu Deng, Yishun Lu, Zimo Zhao, Mengmeng Li, Waqas Kamal, Junseok Ma, Yongge Ma, Steve J. Elston, Alfonso A. Castrejón‐Pita, Stephen M. Morris, Chao He   +14 more
wiley   +1 more source

Double side passivation of phenylethyl ammonium iodide for all perovskite tandem solar cell with efficiency of 26.8%

EcoEnergy
All‐perovskite tandem solar cells are regarded as the next generation of devices capable of enhancing the solar energy utilization rate. Unlike single‐junction perovskite solar cells (PSCs), the efficacy of tandem cells is contingent upon the performance
Huan Bi, Jiaqi Liu, Liang Wang, Zheng Zhang, Gaurav Kapil, Shahrir Razey Sahamir, Ajay Kumar Baranwal, Yuyao Wei, Yongge Yang, Dandan Wang, Takeshi Kitamura, Hiroshi Segawa, Qing Shen, Shuzi Hayase   +13 more
doaj   +1 more source