Results 71 to 80 of about 2,656,359 (254)

A New Class of Broadband Arrays With Frequency Invariant Beam Patterns [PDF]

, 2004
In this paper, a new class of broadband arrays with frequency-invariant beam pattern is proposed. By suitable substitutions, the beam pattern of a continuous sensor array with continuous temporal processing can be regarded as the Fourier transform of its
S. Weiss, Weiss, S, Liu, Wei, Liu, W, Weiss, S., Wei Liu   +5 more
core   +1 more source

Beyond Fiber: Toward Terahertz Bandwidth in Free-Space Optical Communication

Sensors
The rapid advancement of terahertz (THz) communication systems has positioned this technology as a key enabler for next-generation telecommunication networks, including 6G, secure communications, and hybrid wireless-optical systems.
Rahat Ullah, Sibghat Ullah, Jianxin Ren, Hathal Salamah Alwageed, Yaya Mao, Zhipeng Qi, Feng Wang, Suhail Ayoub Khan, Umar Farooq   +8 more
doaj   +1 more source

Bio‐Inspired Synthesis of Macroporous Single Crystal Particles as Scattering Agents

Advanced Functional Materials, EarlyView.
A general strategy is presented that delivers unique, single‐crystal microparticles that combine submicron macroporosity and uniform particle shapes. A bioinspired approach is used to occlude three distinct types of additives – polystyrene microspheres, polymer vesicles and amino acids – within calcite single crystals, and subsequent thermal annealing ...
Stephanie E. Foster, Gianni Jacucci, Ouassef Nahi, Thomas Kress, Zabeada Aslam, Stuart Micklethwaite, Alexander N. Kulak, Rik Drummond‐Brydson, Melinda J. Duer, Yi‐Yeoun Kim, Silvia Vignolini, Fiona C. Meldrum   +11 more
wiley   +1 more source

Mutagenesis of Highland barley (Hordeum vulgare L. Var. nudum) using nitrogen ion beam implantation: screening of phenotypic variations and comparative transcriptome analysis

BMC Genomics
Background Highland barley (Hordeum vulgare L. var. nudum) is a key crop of the Qinghai-Tibet Plateau, renowned for its nutritional value and exceptional adaptability to high-altitude environments.
Hao-Yue Yu, You-Huan Zhang, Hang Li, Hong Feng   +3 more
doaj   +1 more source

Multimode Oxide‐Based Optoelectronic Memtransistor for In‐Sensor Vision Processing

Advanced Functional Materials, EarlyView.
A multimode optoelectronic memtransistor (OEMT) is demonstrated for vision explainable artificial intelligence (VXAI) hardware. By integrating optical sensing, electrical masking, and non‐volatile memory, the device enables key operations required for generating saliency information.
Min Gu Lee, Geunyoung Kim, Hwa Young Kim, Do Hoon Kim, Hanchan Song, Huisu Noh, Jungwan Noh, Seungwoo Lee, Sang‐Hee Ko Park, Himchan Cho, Kyung Min Kim   +10 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

Tuning the Optoelectronic Properties of Wide Bandgap Perovskites: Data‐Driven Insights from Combinatorial Synthesis and High‐Throughput Experimentation

Advanced Functional Materials, EarlyView.
Combinatorial vapor deposition enables independent tuning of Cs/Pb and Br/Cl in wide‐bandgap perovskites. Automated multimodal mapping of 500+ compositions reveals a high‐energy optical transition that correlates with enhanced photoluminescence, defining a practical Cs/Pb window.
Alexander Wieczorek, Sergey Tsarev, Nathan Rodkey, Oleksandr Pshyk, Stefanie Frick, Maksym V. Kovalenko, Sebastian Siol   +6 more
wiley   +1 more source

Other title: Teen safe driving in Connecticut

, 2012
Annual; "Annual Report on Effectiveness of Connecticut's Teen Driving Laws.

core  

Control of a Dynamic Driving Simulator: Time-Variant Motion Cueing Algorithms and Prepositioning [PDF]

, 2006
This thesis mainly addresses the task to provide the driver of a dynamic driving simulator with the same motion cues as would occur in reality. The DLR Driving Simulator, which is the subject matter of this thesis, uses a hexapod motion platform to ...
Weiß, Cornelius
core  

Approximate Adaptive Beam-Pattern Design

, 2018
Matlab code supporting the publication: Herbert, Hopgood and Mulgrew, "Computationally simple MMSE (A-optimal)adaptive beam-pattern design for MIMO activesensing systems via a linear-Gaussian approximation", IEEE Transactions on Signal ...
Hopgood, James R., Herbert, Steven, Mulgrew, Bernie   +2 more
core   +1 more source