Results 31 to 40 of about 95,996 (218)

A Model of OFDM based Maritime VHF Communication System for Data Exchange

Polish Maritime Research, 2018
In the maritime Very High Frequency (VHF) band, there are no systems for transmitting large amounts of data. Therefore, it is necessary to develop new systems that would modernize the Global Maritime Distress and Safety System (GMDSS), significantly ...
Valčić Sanjin, Pogány Tibor, Mrak Zoran   +2 more
doaj   +1 more source

Vehicle Cabin Noise Cancellation Model Using Pre-Filter for Improved Convergence Rate and Better Stability

Communications, 2023
Adaptive algorithms are used in updating the filter coefficients for active noise cancellation applications in reduction of vehicle cabin noise. The performance of the adaptive algorithms in low-frequency noise cancellation depends on how efficiently it ...
Janak Kapoor, Ajita Pathak, Manish Rai, G. R Mishra   +3 more
doaj   +1 more source

Die gebruik van die sweedse skaal by die keuring van verpleegkunde studente aan die randse Afrikaanse Universiteit

Curationis, 1989
Students applying to follow the B. Cur. degree at the Rand Afrikaans University are subjected to a selection process. In spite o f the selection process the drop-out rate is high.
Annali Basson, Annatjie Botes
doaj   +1 more source

Estimativa da Umidade do Solo por Refletometria GNSS: uma Revisão Conceitual

Revista Brasileira de Cartografia, 2021
O monitoramento da umidade do solo possibilita o manejo e uso eficiente de recursos hídricos, sendo uma atividade importante em diversas áreas, tais como: no monitoramento de áreas de risco; delimitação de áreas suscetíveis a enchentes; atividades da ...
Jorge Felipe Euriques, Claudia Pereira Krueger, Wagner Carrupt Machado, Luiz Fernando Sapucci, Felipe Geremia Nievinski   +4 more
doaj   +1 more source

Rancang Bangun Sistem Mode Persiapan pada Mobil Berbasis Mikrokontroler

Jurnal Jaringan Telekomunikasi, 2021
People want a vehicle that is ready to use without having to wait for long or in the sense that the performance of an activity can run efficiently.
Alfan Tamamy, Koesmarijanto Koesmarijanto, Ridho Hendra Yoga Perdana   +2 more
doaj   +1 more source

A new flow chip in combination with multiphoton microscopy as a protocol for longitudinal 3D imaging of tissue calcification under shear stress

FEBS Open Bio, EarlyView.
Miniaturized flow chip platform enabling continuous perfusion and longitudinal multiphoton 3D imaging of vascular smooth muscle cell constructs under physiological flow. Brightfield imaging guides region selection, while CellTracker Green and mRuby‐labeled fetuin‐A visualize cells and mineral deposition, respectively. Magnesium supplementation markedly
Vytautas Kučikas, Aaron D. Morgan, Ignas Čiurlionis, Christian Böhm, Stefan Jockenhövel, Willi Jahnen‐Dechent, Marc A. M. J. van Zandvoort   +6 more
wiley   +1 more source

A Novel Direct-Binary Amplitude Modulator Integrated with a 16-Times Frequency Multiplier for 5G+ Applications [PDF]

Journal of Electromagnetic Engineering and Science
This article presents a novel passive direct binary amplitude modulator (AM) integrated with two frequency multipliers (FMs) and a drive amplifier. Both FMs are composed of a harmonic generator and a modified cascode buffer, along with an additional ...
Kyu-Hyun Nam, Nam-Pyo Hong, Jun-Seok Park   +2 more
doaj   +1 more source

Neurochemical Endpoints to Inform Early‐Stage Trials of Spinocerebellar Ataxia 2 and 3 in a Multisite Setting

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Neurochemical levels measured by brain MR spectroscopy (MRS) have been proposed as endpoints for clinical trials in early‐stage spinocerebellar ataxia (SCA) trials. We tested their trial‐readiness by quantifying neurochemicals in three affected brain regions in early‐stage cohorts of SCA2 and SCA3, examining their reproducibility in ...
James M. Joers, Yaqiao Wei, Dinesh K. Deelchand, Adam Berrington, Young Woo Park, Guita Banan, Michal Povazan, Jens T. Rosenberg, André J. W. van der Kouwe, Tetsuo Ashizawa, Khalaf O. Bushara, Chiadi U. Onyike, Sub H. Subramony, Jeremy D. Schmahmann, Brian J. Soher, Peter B. Barker, Thomas H. Mareci, Eva‐Maria Ratai, Lynn E. Eberly, Gülin Öz   +19 more
wiley   +1 more source

Chronic stress-induced neurodegenerative changes in Wistar rats: Hippocampal evidence and the mitigating effects of Allium Sativum

Babcock University Medical Journal
Objective: Stress triggers a biological response perceiving a threat, chemicals and hormones surge throughout the body, after long-term exposure, stress accelerates cell ageing, immune senescence, and some age-related diseases such as neurodegenerative ...
Opeyemi Adebola Adetunji, Adeola Oluwafunmbi Adegunle , Bayo Olufunso Adeoye , Joseph Chigbogu Nwobi , Oluseyi Sunday Fabiyi , Oyedayo Phillips Akano , Sanmi Tunde Ogunsanya , Samson Oluwole Oyewumi , Nnenna Linda Nwobi , Ayodeji David Adeoye , Olugbenga Olawole Olayinka   +10 more
doaj   +1 more source

T1 Over Squared Proton Density Ratio to Characterize Multiple Sclerosis Lesions

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Differentiating remyelinated from demyelinated lesions in MS remains challenging without histological confirmation. This study introduces the T1‐to‐PD2 ratio (TPR) imaging approach and evaluates its ability to characterize MS lesions alongside other quantitative MRI (qMRI) metrics. Methods Thirty individuals with MS (mean age: 47.5 ± 
Sarah J. Wright, Scotty G. McKay, Jean Ramos Bou, Fen Bao, Vivian B. Truong, Chenyang Li, Li Jiang, Anza B. Memon, E. Mark Haacke, Yulin Ge, Yongsheng Chen   +10 more
wiley   +1 more source