Results 91 to 100 of about 23,737 (265)

On the Error Performance of Coding and Equalization in Low-Complexity Ultra-Wideband Communication Systems

open access: yesJournal of Communications Software and Systems, 2006
In this paper, the performance of various channel coding schemes is investigated in pulse-based ultra-wideband(UWB) communication systems for applications in short-range indoor environments.
Robert H. Morelos-Zaragoza
doaj  

A Compact, High‐Performance, and Deformation‐Resilient Trielectrode Electrostatic Soft Pump for Soft Robotics

open access: yesAdvanced Intelligent Systems, Volume 7, Issue 3, March 2025.
Existing soft pumps often require tradeoffs between performance and compatibility with soft robotic systems. The proposed trielectrode electrostatic soft pump addresses these limitations through an innovative driving mechanism. Its design, which includes a trielectrode configuration and the use of compliant materials, improves operational efficiency ...
Yangqiao Lin   +10 more
wiley   +1 more source

Single‐Atom Control of Aromaticity and Excited‐State Dynamics in Endohedral Zirconium–Antimony Zintl Clusters

open access: yesAngewandte Chemie, EarlyView.
Single‐atom growth from [Zr@Sb12]2− to [Zr@Sb13]3− disrupts the closed‐shell S2P6 superatomic configuration and markedly attenuates three‐dimensional (3D) aromaticity. Ultrafast spectroscopy further links stronger spherical aromaticity to slower excited‐state relaxation, establishing an atom‐resolved structure‐aromaticity‐dynamics relationship ...
Yun Zhang   +7 more
wiley   +2 more sources

FÉDÉRALISME D'OUVERTURE ET POUVOIR DE DÉPENSER AU CANADA [PDF]

open access: yesRevista d'Estudis Autonòmics i Federals, 2008
In power since January 2006, the leader of the Canadian Conservative party,Stephen Harper, promised to break with the previous governments’ “domineering”style of governance and to put into practice a new type of “openfederalism.” Specifically, this ...
Alain Noël
doaj  

A Hybrid Transfer Learning Framework for Brain Tumor Diagnosis

open access: yesAdvanced Intelligent Systems, Volume 7, Issue 3, March 2025.
A novel hybrid transfer learning approach for brain tumor classification achieves 99.47% accuracy using magnetic resonance imaging (MRI) images. By combining image preprocessing, ensemble deep learning, and explainable artificial intelligence (XAI) techniques like gradient‐weighted class activation mapping and SHapley Additive exPlanations (SHAP), the ...
Sadia Islam Tonni   +11 more
wiley   +1 more source

Fatigue‐Driven Adaptive Assistance for a Semi‐Active Upper‐Limb Occupational Exoskeleton

open access: yesAdvanced Intelligent Systems, EarlyView.
Physical fatigue during a physical activity is estimated in real time to enable adaptive exoskeleton assistance. By continuously adjusting the level of support according to the user’s fatigue, this approach reduces physical demand and provides a pathway toward personalized exoskeleton assistance.
Seemab Zakir   +6 more
wiley   +1 more source

AI‐Based Immortality: The Ethical Advantage of the Aretai Approach

open access: yesAI &Innovation, EarlyView.
ABSTRACT The convergence of artificial intelligence, digital identity technologies, and biogerontological ambitions has produced a novel set of philosophical problems that have not yet been adequately addressed within mainstream bioethical discourse. Digital life extension—encompassing AI‐generated avatars, neural data preservation, mind uploading, and
Mirko Daniel Garasic
wiley   +1 more source

Navigating fiscal federalism reforms: the unsuccessful cases of Italy and Spain

open access: yesGestión y Análisis de Políticas Públicas
Objectives: This paper investigates different reforms of fiscal federalism in Italy and Spain, to assess their successful or unsuccessful nature by using a comparative framework across four dimensions: programmatic success, process success, endurance ...
Alice Valdesalici   +1 more
doaj   +1 more source

Risk management externalities in agrifood supply chains

open access: yesAmerican Journal of Agricultural Economics, EarlyView.
Abstract Firms may under‐ or over‐invest in risk management from the social planner's perspective, resulting in a negative externality on other economic agents in the supply chain. The externality of risk management is particularly relevant for agrifood supply chains, which frequently experience disruptions and play a primary role in preventing major ...
Jeffrey Hadachek, Meilin Ma
wiley   +1 more source

Adaptive Denoising and Equalization of Infrared Wireless CDMA System

open access: yesEURASIP Journal on Wireless Communications and Networking, 2005
Infrared has abundant, unregulated bandwidth enabling rapid deployment at low cost. However, safety limits on power emission levels (IEC825), large noise due to ambient lighting, and multipath dispersion remain as hurdles in diffused indoor environments.
Fernando Xavier N, Balendran Balakanthan
doaj  

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