Showing 321 - 340 results of 521 for search '"transmitter"', query time: 0.05s Refine Results
  1. 321

    Preparation of High-Refractive-Index Flexible Nanoparticle Laser Engraving Materials and Micro-Nano Sculpture Art by Zhilei Guo, Liling Huang, Li Tian

    Published 2022-01-01
    “…Finally, experiments on the transmittance and refractive index of ZnO nanoparticles are carried out. …”
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    Article
  2. 322

    Power control strategy with joint of multi-packet reception and fuzzy logic control by Jiang-hong HAN, Song-hua HU, Bin LIU, Zhen CHEN, Lei LIU

    Published 2015-02-01
    “…In order to meet the needs of energy saving in wireless networks,a power control strategy with joint of multi-packet reception and fuzzy logic was proposed.Firstly,based on the power control with successive interference cancellation (SIC),transmission power was divided into several decodable power levels.Secondly,fuzzy logic control algorithm was adopted to select the optimal transmission power for SIC.In addition,three parameters were designed as fuzzy logic control inputs for power selection,which were the distance between transmitters and receivers,the number of neighboring nodes and the residual energy of transmitters.Simulation results show that power control strategy with joint of multi-packet reception and fuzzy logic control not only betters average network throughput than other power control strategy for SIC,but also saves more energy so that the network lifecycle would be significantly extended.…”
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  3. 323

    Joint Position and Velocity Estimation of a Moving Target in Multistatic Radar by Bistatic Range, TDOA, and Doppler Shifts by Lijuan Yang, Huotao Gao, Boya Li, Yunkun Yang, Guobao Ru

    Published 2019-01-01
    “…Multistatic radar system includes several independent receivers and transmitters of time synchronization. Different transmitters radiate signals of different frequencies, and receivers detect the Doppler shifts of the received signals. …”
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  4. 324

    Joint beamforming for multiuser SCFDE block transmission system in frequency selective MIMO channels by Li-zhou Xu, Jian JIANG, Sheng DING, Ying-guan WANG

    Published 2013-03-01
    “…Single carrier frequency domain equalization (SCFDE) joint beamforming in frequency selective multiple input multiple output (MIMO) channels under the multi-user scenario was analyzed.Firstly,the frequency domain beamforming was transformed to a time domain filtering beamforming.By using the time domain model,the signal to interference plus noise(SINR)expression of every receiver at the decision point was shown after the frequency domain minimum mean square error(MMSE)equalization.Under a given quality of service(QoS)constraint of every receiver,the optimal beamforming coefficients minimizing the total transmitted power from all transmitters were found through solving a convex semidefinite programming (SDP) problem relaxed from a nonconvex quadratically constrained quadratic programming(QCQP)problem.Simulation demonstrates that the total transmitted power from all transmitters varies regularly with different settings deployed by the model.…”
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  5. 325

    Preprocessing optimization algorithm based on partial channel information feedback in wideband OFDM systems by WANG Xia1, ZHANG Guo-mei1, XUE Tao2

    Published 2011-01-01
    “…To mitigate inter-block interference(IBI) and inter-carrier interference(ICI) in an orthogonal frequency divi-sion multiplexing(OFDM) system,pre-processing approaches at transmitters based on full channel state information(CSI) had been proposed,the performance improved and receiver simplied.However,feeding full CSI back would oc-cupy scarce bandwidth and was impractical sometimes for the systems with high real-time demand.To deal with this problem,a preprocessing optimization based on partial CSI feedback was investigated and three selected preprocessing approaches of optimization matrix were developed and tested.Computer simulation results showed that the proposed op-timization algorithm can effectively cancel IBI and ICI and significantly improve the performance in wideband OFDM systems.Compared with the pre-processing approaches at transmitters based on full CSI,under the condition of meeting the demand for quality of services(QoS),the proposed scheme has high spectral efficiency and low feedback and com-putation complexity.…”
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  6. 326

    Terahertz Spectral Characteristics of Konjac Gum Determined via Microfluidic Technology by Huimin Jiang, Qingjun Li, Yan Shen, Hangyu Zhou, Yuchai Li, Bo Su, Cunlin Zhang

    Published 2022-01-01
    “…Higher temperatures of the konjac gum lead to lower terahertz transmittance, and longer exposure time in the electric field leads to a lower transmittance of terahertz radiation and its higher absorption by the konjac gum. …”
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  7. 327

    HELMHOLTZ COILS FOR MEASURING MAGNETIC MOMENTS by P. N. Dobrodeyev, S. A. Volokhov

    Published 2015-03-01
    “…Analytically confirmed the feasibility of the proposed configuration of these coils as primary transmitters of magnetic dipole moments.…”
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  8. 328

    Optimization of the Cathode Arc Plasma Deposition Processing Parameters of ZnO Film Using the Grey-Relational Taguchi Method by Shuo-Fu Hsu, Jyh-Horng Chou, Chun-Hsiung Fang, Min-Hang Weng

    Published 2014-01-01
    “…The effect and optimization of deposition parameters, comprising the Ar : O2 gas flow ratio of 1 : 6, 1 : 8, and 1 : 10, the arc current of 50 A, 60 A, and 70 A, and the deposition time of 5 min, 10 min, and 15 min, on the electrical resistivity and optical transmittance of the ZnO films are studied. The results indicate that, by using the grey-relational Taguchi method, the optical transmittance of ZnO thin films increases from 88.17% to 88.82% and the electrical resistivity decreases from 5.12×10-3Ω-cm to 4.38×10-3Ω-cm, respectively.…”
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  9. 329

    Coherence vortices by binary pinholes by Gautam Akanksha, Agarwal Amit K., Singh Rakesh Kumar

    Published 2024-10-01
    “…In this paper, we introduce a novel technique to generate the coherence vortices of different topological charges by incoherent source transmittance with exotic structured binary pinholes. …”
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  10. 330

    Impacts of COVID-19 on the Return and Volatility Nexus among Cryptocurrency Market by Xin Sui, Guifen Shi, Guanchong Hou, Shaohan Huang, Yanshuang Li

    Published 2022-01-01
    “…The results revealed that the total volatility connectedness of the cryptocurrency market markedly increased following the outbreak of COVID-19; statically, Bitcoin, Ethereum, Cardano, and Bitcoin Cash were the net transmitters before COVID-19, while Bitcoin, Ethereum, Ripple, Litecoin, Cardano, and Stellar became the major net transmitters in the market after COVID-19. …”
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  11. 331

    HADİSİN TARİHSEL SERÜVENİ VE EPİSTEMİK DEĞERİ ÜZERİNE by Yavuz Ünal

    Published 2008-11-01
    “…The form of their coming into existence determines the possibility of their being handled (narrated) by their transmitters or narrators (rawi) and their being exposed to historical process. …”
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  12. 332

    Measurement of Rank and Other Properties of Direct and Scattered Signals by Svante Björklund, Per Grahn, Anders Nelander, Mats I. Pettersson

    Published 2016-01-01
    “…We have performed the measurements in an anechoic chamber with several transmitters, a receiving array antenna, and a moving reflector. …”
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  13. 333

    Synthesis of Neutral SiO𝟐/TiO𝟐 Hydrosol and Its Application as Antireflective Self-Cleaning Thin Film by Chiahung Huang, Hsunling Bai, Yaoling Huang, Shuling Liu, Shaoi Yen, Yaohsuan Tseng

    Published 2012-01-01
    “…The SiO2/TiO2 thin film increased near 2% of transmittance; however, the TiO2 thin film decreased 5% of transmittance at least. …”
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    Article
  14. 334

    Structural, Optical Constants and Photoluminescence of ZnO Thin Films Grown by Sol-Gel Spin Coating by Abdel-Sattar Gadallah, M. M. El-Nahass

    Published 2013-01-01
    “…The transmittance of the prepared thin films is 92.4% and 88.4%. …”
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  15. 335

    Study on the Properties of Polyurethane–Urea Elastomers Prepared by TDI/MDI Mixture by Xiangcheng Bian, Jiaguo He, Maoyong He, Bingxiao Liu, Yinzhu Zhang

    Published 2024-01-01
    “…The effect of the molar ratio of TDI to MDI on the pot life, light transmittance, mechanical properties, thermal stability, and dynamic mechanical properties of PUU was investigated. …”
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  16. 336

    Multiantenna Spectrum Sensing in the Presence of Multiple Primary Users over Fading and Nonfading Channels by Dayan Adionel Guimarães, Rausley Adriano Amaral de Souza, Guilherme Pedro Aquino

    Published 2015-01-01
    “…The basis of this paper is Wei and Tirkkonen, 2012, in which expressions for the key performance metrics of the sphericity test applied to the multiantenna cooperative spectrum sensing of multiple primary transmitters in cognitive radio networks over nonfading channels are provided. …”
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  17. 337

    Rancidity Estimation of Perilla Seed Oil by Using Near-Infrared Spectroscopy and Multivariate Analysis Techniques by Suk-Ju Hong, Shin-Joung Rho, Ah-Yeong Lee, Heesoo Park, Jinshi Cui, Jongmin Park, Soon-Jung Hong, Yong-Ro Kim, Ghiseok Kim

    Published 2017-01-01
    “…The acid, peroxide value, and transmittance spectra of perilla seed oil stored in two different environments for 96 and 144 h were obtained and used to develop prediction models for different storage conditions and time periods. …”
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  18. 338

    Effect of Oxygen Flow Rate on the Optical, Electrical, and Mechanical Properties of DC Sputtering ITO Thin Films by Chuen-Lin Tien, Hong-Yi Lin, Chih-Kai Chang, Chien-Jen Tang

    Published 2018-01-01
    “…We used an optical spectrometer to measure the optical transmittance and a four-point probe instrument to determine the resistivity. …”
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  19. 339

    Dispersal Movements and Hot Spot Areas of Juvenile Bonelli's Eagles on the Island of Crete, Greece by Stavros Xirouchakis, Konstantinos Damianakis, Afroditi Kardamaki, Aspasia Anagnostopoulou

    Published 2023-10-01
    “…In an effort to investigate the movement patterns and settlement areas of young eagles, we tagged 30 fledglings on the island of Crete during 2019–2023 with GPS/GSM transmitters.…”
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  20. 340

    Analyze the detection performance of network radar on Rician targets by LIU Yue-ping1, JIANG Qiu-xi1, BI Da-ping1, CUI Rui1

    Published 2011-01-01
    “…The detection performance of the four different kinds of network radar models on Rician targets was analyzed when the total power of the transmitters was definite.The simulated and analyzed results show that Rician targets can be divided into two kinds which have different detection performance.In the network radar,the detection performance of class-Rayleigh targets is like Rayleigh targets,and the detection performance of standard Rician targets is different from Rayleigh targets.…”
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