Results 121 to 130 of about 26,636 (252)

From Sub-6 GHz to Millimeter-Wave: Dynamic Indoor Measurements, Channel Characteristics and Performance Evaluation

IEEE Open Journal of the Communications Society
Future wireless communication systems will extend the employed frequency bands from sub-6 GHz to millimeter wave (mmWave) bands to achieve higher data rates.
Faruk Pasic, Mariam Mussbah, Markus Hofer, Sebastian Caban, Stefan Schwarz, Thomas Zemen, Markus Rupp, Christoph F. Mecklenbrauker   +7 more
doaj   +1 more source

Orthogonal Chirp Delay-Doppler Division Multiplexing (CDDM) Modulation for High Mobility Communications [PDF]

This paper proposes a novel multi-carrier modulation framework for high-mobility communication scenarios. Our key idea lies in spreading data symbols across the delay- Doppler (DD) domain through orthogonal chirp-Zak transform (CZT).
Fan, Pingzhi, Liu, Zilong, Bai, Chaoyuan, Zhou, Zhengchun   +3 more
core   +1 more source

Atlantic salmon (Salmo salar L.) kelt rheotaxis and position choice are influenced by flow velocity and turbulence in a regulated river

Journal of Fish Biology, EarlyView.
Abstract The migratory behaviour of Atlantic salmon kelts is poorly understood. Due to the Atlantic salmon's considerable socio‐economic and ecological importance, their precipitous population abundance declines, and the population resilience potential of salmon kelts, addressing these knowledge gaps is important.
Olivia Meredith Simmons, David Aldvén, Patrik Andreasson, Henrik Baktoft, Olle Calles, Ola Diserud, Torbjørn Forseth, Karl Gjelland, Stephanie Müller, Finn Økland, Ana Teixeira da Silva   +10 more
wiley   +1 more source

Fish welfare in a changing world: New developments and current challenges

Journal of Fish Biology, EarlyView.
Abstract The welfare of non‐human animals is central to ethical discussions on animal use, with increasing attention to fish welfare across research, aquaria, aquaculture, and fisheries. This paper reviews current theoretical approaches to animal welfare and recent advances in defining and assessing fish welfare since the seminal paper by Huntingford ...
Sonia Rey Planellas, João L. Saraiva, Eliane Gonçalves‐de‐Freitas, Pablo Arechavala‐Lopez, Bernice Bovenkerk, Michael Breen, Steven J. Cooke, Martin Føre, Lene Northwood, Lars Helge Stien, Sunil Kadri, Chris Noble, Jonatan Nilsson, Fernando Rodriguez, Cosme Salas, Peter Sandøe, Hans van de Vis   +16 more
wiley   +1 more source

Performance Analysis of Orthogonal Time Frequency Space Modulation and Satellite Visibility Pattern Determination in Space Communications

IEEE Access
Orthogonal Time Frequency Space Modulation (OTFS) is a new modulation technique developed for emerging communication systems. OTFS modulates information symbols in the delay-Doppler domain.
Atif Iqbal, Martin Cruz Vazquez, Sandip K. Chettri, Kamesh Namuduri, S. Chakravarty, Amjad A. Soomro   +5 more
doaj   +1 more source

On the Pulse Shaping for Delay-Doppler Communications

, 2023
In this paper, we study the pulse shaping for delay-Doppler (DD) communications. We start with constructing a basis function in the DD domain following the properties of the Zak transform.
Wei, Zhiqiang, Caire, Giuseppe, Yuan, Jinhong, Bai, Baoming, Li, Shuangyang, Yuan, Weijie   +5 more
core  

Cyclin‐dependent kinase 13 is indispensable for normal mouse heart development

Journal of Anatomy, Volume 246, Issue 4, Page 616-630, April 2025.
Congenital heart disease (CHD) is the most common defect in live births. The role of cyclin‐dependent kinase (CDK13) in cardiogenesis and CHD was studied using a transgenic mouse model (Cdk13tm1b) carrying deletion of exons 3 and 4, causing loss of function.
Qazi Waheed‐Ullah, Anna Wilsdon, Aseel Abbad, Sophie Rochette, Frances Bu'Lock, Asma Ali Saed, Marc‐Phillip Hitz, J. David Brook, Siobhan Loughna   +8 more
wiley   +1 more source

Soft Tissue Substitutes: Current Biomaterials and Indications at Teeth and Implant Sites

Journal of Periodontal Research, EarlyView.
This manuscript provides an updated overview of the current evidence on soft tissue graft substitutes for teeth and dental implants. When appropriately indicated, these biomaterials offer a reliable, less invasive alternative to autogenous grafts, effectively improving root coverage, keratinized mucosa width, and soft tissue thickness with reduced ...
Lorenzo Tavelli, Daniel Thoma, Maria Elisa Galarraga‐Vinueza, Mario Romandini, Shayan Barootchi   +4 more
wiley   +1 more source

OTFS: A Potential Waveform for Space–Air–Ground Integrated Networks in 6G and Beyond

Telecom
6G is expected to provide ubiquitous connectivity, particularly in remote and inaccessible environments, by integrating satellite and aerial networks with existing terrestrial networks, forming Space–Air–Ground Integrated Networks (SAGINs).
Obinna Okoyeigbo, Xutao Deng, Agbotiname Lucky Imoize, Olamilekan Shobayo   +3 more
doaj   +1 more source

The effects of delay to reinforcement and inter-trial interval on fixed-ratio schedule performance

, 2013
A delay to reinforcement has been found in previous studies to influence the effectiveness of a reinforcer. As the delay duration increases, response rates decrease and post reinforcement pause durations increase.
Stuart, Stacey Louisa
core