Results 111 to 120 of about 37,823 (267)
Message ordering is a fundamental abstraction in distributed systems. However, usual ordering guarantees are purely ``syntactic'', that is, message ``semantics'' is not taken into consideration, despite the fact that in several cases semantic information about messages leads to more efficient message ordering protocols.
Fernando Pedone, André Schiper
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In 2020, COVID-19 forced several communities to isolate, and radio stations stepped up as leaders in communication and media during the pandemic, especially in rural communities where internet access is lacking.
Fernando N. Mangubat Jr +4 more
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ABSTRACT This paper presents the first end‐to‐end framework that combines guidance, navigation, and centralized task allocation for multiple UAVs performing autonomous search‐and‐rescue (SAR) in GNSS‐denied indoor environments. A twin delayed deep deterministic policy gradient controller is trained with an artificial potential field (APF) reward that ...
Thomas Hickling +3 more
wiley +1 more source
Effectiveness Assessment of Underwater Area Cruise Based on the ADC Method
ABSTRACT Underwater area surveillance plays a crucial role in upholding national security, safeguarding strategic interests, and mitigating potential threats. Despite its significance, a notable gap persists in the availability of comprehensive models for assessing its effectiveness.
Qingwei Liang +3 more
wiley +1 more source
Preponderant agent, what is that?
Purpose – Preponderant agent is a new instrument for preventing and reverting adverse impact in competition due to highly concentrated markets. Therefore, this paper's objective is to present and analyze the preponderant agent concept in Mexico with ...
Clara Luz Álvarez
doaj
Formation Control With Obstacle Avoidance of Underwater Swarms Based on Relative Visual Feedback
ABSTRACT Underwater multi‐robot and swarm systems require advanced methodologies for controlling collective behavior. Conventional single‐robot techniques, such as tethering, sonar imaging, and acoustic localization, are not scalable or effective for swarm applications.
Andrea Infanti +7 more
wiley +1 more source
ABSTRACT As non‐terrestrial networks (NTNs) become integral to future 6G systems, ensuring seamless connectivity and service continuity over low Earth orbit (LEO) satellite constellations is essential. This work investigates the impact of open radio access network (RAN) functional splits on handover performance in NTNs, focusing on minimizing service ...
Siva Satya Sri Ganesh Seeram +3 more
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Three‐Year Propagation Experiment at Ku‐, Ka‐, and Q‐Band in French West Indies
ABSTRACT From January 2021 to December 2023, the Office National d'Etudes et de Recherches Aérospatiales (ONERA) and the Centre National d'Etudes Spatiales (CNES) conducted a three‐year Earth‐space propagation measurement campaign in Guadeloupe. The experiment used beacon receivers deployed in Pointe‐à‐Pitre airport to record signals at 11.2, 19.7, and
Jean‐Pascal Monvoisin +3 more
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BROADCAST TELEVISION: BROADCAST GEOGRAPHY?
Television plays an important role in how the public both understands and takes an interest in geography. As geographers, if we are to maximise the opportunities provided by television to promote geography, we need to understand how it is developing in the 21st century. The first part of this paper examines some of the concepts currently applied to the
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