Results 31 to 40 of about 9,439,872 (313)

Frequency Selective Surface With Two Quasi-Independent Notch Frequencies [PDF]

IEEE Access, 2019
A double-layer frequency selective surface (FSS) built on FR4 substrate exhibiting two notch frequencies in the 0-10-GHz range is introduced. Recently published examples demonstrate that further research needs to be undergone for obtaining separate tuning of the resulted notch frequencies.
Matekovits L., De Sabata A., Silaghi A. -M.   +2 more
openaire   +4 more sources

Electrically Tunable Metasurface with Independent Frequency and Amplitude Modulations

, 2020
Metasurfaces with actively tunable features are highly demanded for advanced applications in electronic and electromagnetic systems. However, realizing independent dual-tunability remains challenging and requires more efforts.
Jin Zhang, Xingzhan Wei, I. Rukhlenko, Houtong Chen, Weiren Zhu   +4 more
semanticscholar   +1 more source

The Impact of Uncertainty on Pedestrians’ Decision to Start Roadway Crossing during the Clearance Phase

Complexity, 2021
Clearance phase at signalized crosswalks is an important parameter of pedestrians’ safety because it helps them to complete the crossing before the green signal for vehicles.
Milan Simeunović, Andrijana Jović, Pavle Pitka, Mladen Dobrić   +3 more
doaj   +1 more source

Polarization Angle Independent Perfect Metamaterial Absorbers for Solar Cell Applications in the Microwave, Infrared, and Visible Regime

, 2014
We design, characterize, and analyze a new kind of metamaterial (MTM) absorber (MA) in difierent frequency regions for the solar cell applications. This MTM based structure is particularly presented in a range of the solar spectrum in order to utilize ...
F. Dinçer, O. Akgol, M. Karaaslan, E. Unal, C. Sabah   +4 more
semanticscholar   +1 more source

Numerical Control Machine Tool Fault Diagnosis Using Hybrid Stationary Subspace Analysis and Least Squares Support Vector Machine with a Single Sensor

Applied Sciences, 2017
Tool fault diagnosis in numerical control (NC) machines plays a significant role in ensuring manufacturing quality. However, current methods of tool fault diagnosis lack accuracy.
Chen Gao, Wei Xue, Yan Ren, Yuqing Zhou
doaj   +1 more source

Frequency and Temporal Convolutional Attention for Text-Independent Speaker Recognition [PDF]

IEEE International Conference on Acoustics, Speech, and Signal Processing, 2019
Majority of the recent approaches for text-independent speaker recognition apply attention or similar techniques for aggregation of frame-level feature descriptors generated by a deep neural network (DNN) front-end.
Sarthak Yadav, A. Rai
semanticscholar   +1 more source

Statistics and Properties of Low-Frequency Vibrational Modes in Structural Glasses. [PDF]

Physical Review Letters, 2016
Low-frequency vibrational modes play a central role in determining various basic properties of glasses, yet their statistical and mechanical properties are not fully understood.
E. Lerner, G. Düring, Eran Bouchbinder
semanticscholar   +1 more source

An Intelligent Secured Framework for Cyberattack Detection in Electric Vehicles’ CAN Bus Using Machine Learning

IEEE Access, 2019
Electric Vehicles' Controller Area Network (CAN) bus serves as a legacy protocol for in-vehicle network communication. Simplicity, robustness, and suitability for real-time systems are the salient features of CAN bus.
Omid Avatefipour, Ameena Saad Al-Sumaiti, Ahmed M. El-Sherbeeny, Emad Mahrous Awwad, Mohammed A. Elmeligy, Mohamed A. Mohamed, Hafiz Malik   +6 more
doaj   +1 more source

Gated Mode Superconducting Nanowire Single Photon Detectors

, 2011
Single Photon Detectors (SPD) are fundamental to quantum optics and quantum information. Superconducting Nanowire SPDs (SNSPD) [1] provide high performance in terms of quantum efficiency (QE), dark count rate (DCR) and timing jitter [2], but have limited
A. Hamed Majedi, Akhlaghi, Annunziata, Annunziata, Braginsky, Dauler, Divochiy, Ejrnaes, Gol’tsman, Gol’tsman, Gol’tsman, Gurevich, Hadfield, Hu, Kerman, Kerman, Knill, Korneeva, Miki, Miki, Mohsen K. Akhlaghi, Ren, Rosfjord, Shibata, Skocpol, Stevens, Taber, Takesue, Tarkhov, Yang, Zhang   +30 more
core   +1 more source

Poor written and oral text comprehension in third grade children. A multiple case study [PDF]

, 2018
In this multiple case study we analyzed oral text comprehension, reading profiles and underlying cognitive abilities (attention, executive functions, working memory, narrative memory, rapid automatized naming and vocabulary) of 9 children identified as ...
Davide Cavallo, Nicola, Giangrande, Andrea, Orsolini, Margherita, Scalisi, Teresa   +3 more
core   +1 more source