Results 91 to 100 of about 148,872 (273)

A novel mechanism for contention resolution in HFC networks

, 2003
The Medium Access Control (MAC) scheme proposed by DAVIC/DVB, IEEE 802.14 and DOCSIS for the upstream channel of Hybrid Fiber Coaxial (HFC) access networks is based on a mixable contention-based/contention-less time slot assignment. Contention-less slots
Sai Shankar N, S. Borst, van den Broek, M.X., Borst, S.C.; id_orcid, M.X. van den Broek, I.B.J.F. Adan, Adan, I.J.B.F.; id_orcid, Sai Shankar, N.   +7 more
core   +1 more source

Negative Feedback in Hf0.5Zr0.5O2 Resistive Memory: Feigenbaum Route Toward Two‐Terminal Pseudo‐Random Number Generation and Neural Network Instabilities

Advanced Electronic Materials, EarlyView.
Resistively switching TiN/Hf0.5Zr0.5/Au valance‐change memory devices show period‐doubling bifurcations, arising from competing influences of filamentary counter‐eightwise filamentary switching and eigthwise electrochemical oxygen exchange at the active electrode.
Sebastian Obernberger, Yoandris Gonzalez, Andranik Sarkissian, Christina Schindler, Andreas Ruediger   +4 more
wiley   +1 more source

Contention resolution with bounded delay [PDF]

When many distributed processes contend for a single shared resource that can service at most one process per time slot, the key problem is devising a good distributed protocol for contention resolution.
Paterson, Michael S., Srinavasan, Aravind   +1 more
core  

Agronomic and Nutritional Perspectives on Vegetable Crops in Africa

AgriFood: Journal of Agricultural Products for Food, EarlyView.
Vegetable production plays a key role in food security, nutrition, and livelihoods across Africa. Moreover, African indigenous vegetables emerge as underutilized yet highly valuable crops, rich in macro‐ and micronutrients, as well as bioactive compounds with an array of health benefits.
Đorđe Vojnović, Pamela Owusu Osei, Sina Siavash Moghaddam, Issiake Konate, Jelena Popović‐Đorđević   +4 more
wiley   +1 more source

Effects of Outsourced Agricultural Extension Services on the Technical Efficiency and Financial Returns of Soybean Farms in Northern Cameroon

Agribusiness, EarlyView.
ABSTRACT In the agricultural landscape of most developing countries, the last decade has witnessed the expansion of outsourced agricultural extension services. Private firms and nongovernmental organizations focused on delivering agricultural extension and advisory services to farmers have emerged.
Boris D. Soh Wenda, Doria A. Medondjeu, Dorothy E. Fon, Stefan Sieber   +3 more
wiley   +1 more source

Adaptive load-based contention window-MAC protocol for underwater wireless sensor networks

Intelligent and Converged Networks
In Underwater Wireless Sensor Networks (UWSNs), protocols with definite contention windows fail to adapt to changing network conditions, resulting in channel congestion and collisions.
Meng Shan, Min Ouyang, Jiyi Wu, Tong Wang   +3 more
doaj   +1 more source

Enfant, contenance et contention

, 2008
Les pratiques de contention physique (maîtrise corporelle), mécanique (liens) ou chimiques (tranquillisants ou neuroleptiques) ne sont pas absentes de la psychiatrie infantile.
Kinoo, Philippe, Kpadonou-Fiossi, E., P. Kinoo, E. Kpadonou-Fiossi   +3 more
core   +1 more source

Not All Agreements Are Equal: Heterogeneous Effects of RTAs on Latin American Agri‐Food Exports, 1990–2019

Agribusiness, EarlyView.
ABSTRACT Since the final decade of the 20th century, Latin American countries have increasingly regarded the signing of regional trade agreements (RTAs) as a promising strategy for expanding their exports. Within this context, the main objective of this study is to assess the impact of RTAs on agri‐food exports in Latin America over the period 1990 ...
María‐Isabel Ayuda, Ignacio Belloc, Vicente Pinilla   +2 more
wiley   +1 more source

How Does Patient Capital Enhance Agribusiness Resilience? Evidence From Chinese Listed Agribusinesses

Agribusiness, EarlyView.
ABSTRACT In emerging economies where smallholder farming dominates agricultural production, agribusinesses serve as critical intermediaries linking smallholders to broader markets, and their resilience directly affects agricultural sustainability. Short‐term‐oriented capital is reluctant to adequately finance highly uncertain and cyclical agricultural ...
Siyuan Lyu, Jianling Qi, Liling Jiang, Ronghua Jin, Yuanhao Yu, Lingjing Zhang   +5 more
wiley   +1 more source

Cell Segmentation Beyond 2D—A Review of the State‐of‐the‐Art

Advanced Intelligent Discovery, EarlyView.
Cell segmentation underpins many biological image analysis tasks, yet most deep learning methods remain limited to 2D despite the inherently 3D nature of cellular processes. This review surveys segmentation approaches beyond 2D, comparing 2.5D and fully 3D methods, analyzing 31 models and 32 volumetric datasets, and introducing a unified reference ...
Fabian Schmeisser, Haseeb Muhammad, Junaid Younas, Gillian Lovell, Bianca Migliori, Andreas Dengel, Sheraz Ahmed   +6 more
wiley   +1 more source