Results 71 to 80 of about 6,730 (257)

Turbo Equalization Based on a Virtual Decoder for Underwater Acoustic Communication

Journal of Marine Science and Engineering
By transferring external information between the equalizer and the decoder iteratively, the performance of turbo equalization is close to the channel capacity.
Cong Peng, Lei Wang, Lerong Hong, Zehua Lin, An Luo   +4 more
doaj   +1 more source

Evaluation of therapeutic effects of D‐limonene following orchiopexy in the rat model of cryptorchidism

Animal Models and Experimental Medicine, EarlyView.
D‐limonene supplementation enhances testicular recovery following orchiopexy in a rat model of bilateral cryptorchidism. Treatment with D‐limonene reduces oxidative stress (↓MDA, ↑SOD, ↑GPx, ↑TAC), downregulates pro‐apoptotic proteins (↓TNF‐α, ↓BAX, ↓Caspase‐3), and upregulates anti‐apoptotic Bcl‐2 expression.
Arman Norouzi‐Ghalehbala, Mohammadjavad Rezaei‐Varmaziar, Majid Taati, Ali Soleimanzadeh, Abbas Raisi, Farshid Davoodi, Amir Ali Shahbazfar   +6 more
wiley   +1 more source

Channel Equalization in Filter Bank Based Multicarrier Modulation for Wireless Communications

EURASIP Journal on Advances in Signal Processing, 2007
Channel equalization in filter bank based multicarrier (FBMC) modulation is addressed. We utilize an efficient oversampled filter bank concept with 2x-oversampled subcarrier signals that can be equalized independently of each other.
Markku Renfors, Mika Rinne, Tobias Hidalgo Stitz, Tero Ihalainen   +3 more
doaj   +1 more source

The mechanism of labor in nonhuman primates: A look inside

The Anatomical Record, EarlyView.
Abstract While in humans, the flexed position of the fetus and its rotating course down the birth canal are well documented, in other primates the mechanism of labor is unknown. Despite the lack of comparative data, it is commonly assumed that the human obstetric mechanism is unique, and anthropologists have disputed when and why the transition to the ...
Melissa K. Stoller
wiley   +1 more source

Adaptive Discrete Filters for Telephone Channels Based on the Wavelet Packet Transform

مجلة النهرين للعلوم الهندسية, 2009
The wavelet transform provides good and in many times excellent results when used as a basic block transform in many systems such as electronic, communication, medical and even chemical systems.
Siddeeq Y. Ameen, Abbas A. Al-Shalchi, Vian S. Kasim   +2 more
doaj  

Iterative Frequency-Domain Channel Estimation and Equalization for Ultra-Wideband Systems with Short Cyclic Prefix

EURASIP Journal on Advances in Signal Processing, 2010
In impulse radio ultra-wideband (IR-UWB) systems where the channel lengths are on the order of a few hundred taps, conventional use of frequency-domain (FD) processing for channel estimation and equalization may not be feasible because the need to add a ...
Salim Bahçeci, Mutlu Koca
doaj   +1 more source

Metaverse‐based virtual reality and spatial learning in cervicofacial anatomy: A curriculum‐embedded comparative study in undergraduate medical students

Anatomical Sciences Education, EarlyView.
Abstract To compare a metaverse‐based interactive virtual reality (VR) session with a conventional 2D online lecture for learning cervicofacial anatomy. Single‐center, curriculum‐embedded, nonrandomized comparative study. Fourth‐year students attended a Zoom lecture (Conventional, n = 73); sixth‐year students completed an interactive VR session using ...
Taku Ito, Hidekazu Kawasaki, Ayame Yamazaki, Yoshimaru Mizoguchi, Kumiko Yamaguchi, Eiji Kaneko, Takeshi Tsutsumi   +6 more
wiley   +1 more source

The ORCA‐TWIN qCMOS Experiment I. Science Case and Commissioning at Calar Alto Observatory

Astronomische Nachrichten, EarlyView.
ABSTRACT We describe a pilot study to explore a new generation of fast and low noise CMOS image sensors for time domain astronomy, using two remote telescopes with a baseline of 1635 km. The experiment involves direct imaging with novel qCMOS image sensor technology that combines fast readout with sub‐electron readout noise.
Martin M. Roth, Paško Roje, Stella Vješnica, Stefan Cikota, Alex J. Brown, Mike Kretlow, Marco Azzaro, Santiago Reinhart, Jesús Aceituno, Harry Dawson, Carsten Denker, Torsten Enßlin, Stephan Geier, Thomas Granzer, Thomas Kupfer, Gianluca Li Causi, Samaya Nissanke, José Luis Ortiz, Fernando Pedichini, Katja Poppenhäger, Axel Schwope   +20 more
wiley   +1 more source

Iterative BlindEqualizationBasedonGibbsSamplerforSIMOCommunicationSystems

工程科学与技术, 2015
:To solve the problem of symbol detection in the intersymbol interference (ISI) channel of spatial diversity systems,an iterative blind equalization algorithm was proposed for single-input multiple-ouput (SIMO) communication systems based on the Gibbs ...
乔良, 郑辉
doaj  

Contrasting roles of school and public libraries in lower primary pupils' reading

British Educational Research Journal, EarlyView.
Abstract Libraries represent an important institutional component of children's reading socialisation, yet their role is often treated as uniform despite substantial differences between school and public libraries. This study examines how visits to school and public libraries relate to pupils' reading attitudes, practices and self‐assessed reading ...
Kateřina Balcarová, Jiří Balcar
wiley   +1 more source