降低OFDM系统峰均功率比的差分回归法研究 by 孔德彭, 张国平, 李美燕, 谷志刚

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Experimental Investigation of Zadoff-Chu Matrix Precoding for Visible Light Communication System with OFDM Modulation by Xinyue Guo, Yang Guo, Shuangshuang Li

“…Due to the limited modulation bandwidth of the LED, orthogonal frequency division multiplexing (OFDM) modulation is particularly preferred in the VLC system to overcome the ISI, which suffers from the high peak-to-average power ratio (PAPR) and leads to severe performance loss. …”
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Estimation and compensation of nonideal front-end effects for MB-OFDM based ultra wideband system by LIU Liang, ZHOU Jun, YE Fan, REN Jun-yan

“…A time-domain CFO and I/Q imbalance estimation and compensation scheme for MB-OFDM based ultra-wideband （UWB） system was proposed. …”
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Novel parallel combinatory system with high compaction multicarrier modulation by HOU Ya-fei1, HAMAMURA Masanori2, ZHANG Shi-yong1

Subjects: “…OFDM…”
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O reerguimento da Rússia, os EUA/OTAN e a crise da Ucrânia: a Geopolítica da nova Ordem Mundial by Wanderley Messias da Costa

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Vision as OfferingInterview of Kamau Daaood Monday April 9, 2012, by Nicole Ollier and Sophie Rachmuhl, edited by Sophie Rachmuhl and Kamau Daaood by Nicole Ollier, Sophie Rachmuhl

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Does pregabalin offer potential as a first-line therapy for generalized anxiety disorder? A meta-analysis of efficacy, safety, and cost-effectiveness by Narcis Cardoner, Narcis Cardoner, Narcis Cardoner, Narcis Cardoner, Luis Gutiérrez-Rojas, Luis Gutiérrez-Rojas, Pilar Saiz, Pilar Saiz, Pilar Saiz, Pilar Saiz, Pilar Saiz, Guillermo Lahera, Guillermo Lahera, Guillermo Lahera, Guillermo Lahera, Miguel Ángel Álvarez-Mon, Miguel Ángel Álvarez-Mon, Miguel Ángel Álvarez-Mon, Miguel Ángel Álvarez-Mon, Pino Alonso Ortega, Pino Alonso Ortega, Pino Alonso Ortega, Pino Alonso Ortega, María Pérez-Páramo

“…IntroductionGeneralized Anxiety Disorder (GAD) is a mental health condition with a recent increase in prevalence. GAD is often underdiagnosed, leading to negative consequences for individuals, healthcare systems, and society. …”
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Assessment of T Regulatory Cells and Expanded Profiling of Autoantibodies May Offer Novel Biomarkers for the Clinical Management of Systemic Sclerosis and Undifferentiated Connective Tissue Disease by Paola Cordiali-Fei, Anna Mussi, Giovanna D'Agosto, Elisabetta Trento, Valentina Bordignon, Silvana Trincone, Antonella Vento, Isabella Sperduti, Antonio Cristaudo, Fabrizio Ensoli

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Análise morfométrica das sub-bacias de 3ª ordem da bacia hidrográfica do Rio do Peixe, Minas Gerais by Isabela Belmira Santos Giarola, Cinthia Maria Amaral, Daiane Evangelista de Oliveira

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Are we offering palliative care and employing shared decision making in the neonatal intensive care unit? A 10-year retrospective chart review by Sawyer Karabelas-Pittman, Helen Coo, Hannah Lee, Christine C. Moon, Gillian MacLean

“…Among the 10 consults that involved decision making, SDM was documented in 9 instances (90 %). PPC was offered to 9 of 60 LLC families (15 %) with a live birth and was accepted by 8 (89 %). …”
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¿El huevo o la gallina ? Completitud y fracción en la comida ritual de los totonacos de la Huasteca by Leopoldo Trejo Barrientos

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Analiza oferty produktowej gospodarstw agroturystycznych w Polsce by Jacek Chotkowski, Małgorzata Czerwińska-Jaśkiewicz

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As origens latino-americanas do controle concentrado de constitucionalidade by Francysco Pablo Feitosa Gonçalves

Subjects: “…Origem…”
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World Perspectives: The OMGE Database for Inflammatory Bowel Disease by De Dombal F Timothy

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“Esra Erol’da” Programı Bağlamında Türkiye’deki Değer Erozyonu: Aile Birliğine Önem Verme by Sevgi Coşkun Keskin, Faruk Gezer, Nurullah Arıçam

“….), insani (bencil olma, güvenilir olmama, sorumsuz olma, vs.) ve toplumsal (toplumsal olaylara duyarsızlık, aileye önem vermeme, etik kurallara bağlı olmama, vs.) olmak üzere üç tema bağlamında değerlere yönelik erozyonlar tespit edilmiştir. …”
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Exploring damped and undamped frequencies in beam structures with viscoelastic supports using GFEM and state-space formulation by Gulnaz Kanwal, Hani Alahmadi, Rab Nawaz, Tayyab Nawaz

“…This method provides enhanced accuracy and robustness, especially in modeling complex vibrational behavior in the presence of damping and shear effects, a challenge often encountered in conventional studies. The research further integrates the Galerkin finite element method (GFEM) to offer a shear locking-free solution, demonstrating convergence to exact results, and thereby addressing critical limitations in previous methods. …”
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Machine Learning Approach to Predict the DC Bias for Adaptive OFDM Transmission in Indoor Li-Fi Applications by Marwah T. Salman, David R. Siddle, Amadi G. Udu

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Channel Estimation Optimization Model in Internet of Things Based on MIMO/OFDM with Deep Extended Kalman Filter by Van Tinh Shi, Dong Ren Nhg

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Research on Grid Scroll Chaotic Extended Sequence Algorithm and Its Circuit Implementation for F-OFDM System by Yingjie Ma, Ya Li, Geng Zhao, Ping Zeng, Yatao Yang

“…High peak-to-average power ratio (PAPR), a main problem of 5G Filtered-Orthogonal Frequency Division Multiplexing (F-OFDM) system, seriously affects the system’s transmission efficiency. …”
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A Cognitive Radio Spectrum Sensing Method for an OFDM Signal Based on Deep Learning and Cycle Spectrum by Guangliang Pan, Jun Li, Fei Lin

“…In this paper, we propose a novel spectrum sensing method based on deep learning and cycle spectrum, which applies the advantage of the convolutional neural network (CNN) in an image to the spectrum sensing of an orthogonal frequency division multiplex (OFDM) signal. Firstly, we analyze the cyclic autocorrelation of an OFDM signal and the cyclic spectrum obtained by the time domain smoothing fast Fourier transformation (FFT) accumulation algorithm (FAM), and the cyclic spectrum is normalized to gray scale processing to form a cyclic autocorrelation gray scale image. …”
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