Results 131 to 140 of about 607 (212)

Directive Antenna Clutter Loss in Slant Paths

open access: yesInternational Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT This paper investigates the development of a clutter loss model specifically for slant paths involving directive antennas. Conventionally, clutter loss is characterized by using isotropic antennas to facilitate standard link budget calculations via single antenna gain values.
Fernando Pérez Fontán   +4 more
wiley   +1 more source

Generative AI and the ability of entrepreneurial opportunities to generate sustained competitive advantages

open access: yesStrategic Entrepreneurship Journal, EarlyView.
Abstract Research Summary This paper examines how generative artificial intelligence (GenAI) affects the ability of entrepreneurial opportunities to generate sustained competitive advantage. We argue that GenAI's impact is conditional on how those opportunities are formed. Discovery opportunities originate from exogenous industry shocks.
Haiyang Zhang   +2 more
wiley   +1 more source

World Models for Robotic Manipulation: A Survey

open access: yesSmartBot, EarlyView.
World models enable robots to anticipate how candidate actions may alter object configurations, contact states, and scene geometry before physical execution. This survey examines world models for robotic manipulation as action‐conditioned predictive systems and organizes the literature according to predicted representations, interfaces between ...
Fangyuan Wang   +17 more
wiley   +1 more source

Task‐Oriented Hierarchical Environment Modeling via Spatial Belonging Relationships for Domestic Service Robots

open access: yesSmartBot, EarlyView.
Domestic service robots in dynamic homes often rely on memory‐intensive, quickly outdated 3‐D maps. This work presents HEMDSR, a four‐layer, task‐oriented model that reasons about object‐room and object‐object spatial belonging relationships, encodes observation viewpoints, and builds local 3‐D maps just‐in‐time.
Ying Zhang   +5 more
wiley   +1 more source

Decoding a Decade of Systems Change Guidance, 2014–2025: Building a Shared Framework for Collaboration

open access: yesSystems Research and Behavioral Science, EarlyView.
ABSTRACT Systems change is gaining momentum across sectors as a powerful way to tackle today's most complex social and environmental challenges. Over the past decade, philanthropic, government, finance, development, nonprofit and research groups have published a wide range of practical guides, each tailored to specific areas.
Emily F. Gates   +3 more
wiley   +1 more source

AI‐Powered GPR Characterization of Peatland Underground Cavity Induced by Smoldering Wildfire: A Laboratory Proof‐of‐Concept

open access: yesSafety Science and Technology, EarlyView.
We present an AI‐assisted ground‐penetrating radar framework to noninvasively detect and quantify smoldering wildfire‐induced subsurface cavities in peatlands. A ResNet model accurately predicts cavity geometry from GPR images, enabling improved assessment of underground fire damage and hazards.
Zifan Zhang   +5 more
wiley   +1 more source

Respecifying Stigma and the Language of Relationships: Attributes and Categories as Contexturally‐Achieved Phenomena in the Search for Help

open access: yesSymbolic Interaction, EarlyView.
This article revisits Goffman's original formulations of stigma. In doing so, the discussion focuses, specifically, upon his emphasis that a “language of relationships, not attributes is needed.” The analysis is intended to demonstrate how Goffman's observations offer a starting point for an inquiry in to just how members produce and orient to “spoiled
Robin James Smith
wiley   +1 more source

Urban bats show dietary flexibility in aquatic arthropod consumption at urban and rural waterbodies

open access: yesWildlife Biology, EarlyView.
Urban waterbodies are critical for biodiversity and provide feeding grounds for insectivorous bats. Yet, how urbanisation affects bats' food choices at urban waterbodies and the role of emergent aquatic arthropods remain poorly understood. We compared the diet of three urban bat species – Vespadelus vulturnus, Chalinolobus gouldii,and Myotis macropus –
Tanja M. Straka   +7 more
wiley   +1 more source

Dynamic Multi‐Objective Optimisation of Environmental Change Degree and Similarity Based on Nonparametric Tests

open access: yesCAAI Transactions on Intelligence Technology, EarlyView.
ABSTRACT Dynamic multi‐objective evolutionary algorithms (DMOEAs) are widely used to solve dynamic multi‐objective optimisation problems. However, most existing DMOEAs rarely consider the severity of environmental changes and the varying impact of these changes on different decision variables, which restricts their applicability in complex dynamic ...
Yaru Hu   +8 more
wiley   +1 more source

Arc Resistance Enhancement of Converter Transformer Tank Through Structural Improvements: Simulation and Experimental Validation

open access: yesHigh Voltage, EarlyView.
ABSTRACT Currently, limited research exists on the structural response and protection methods of the converter transformer tank for ± 800 kV ultra‐high voltage direct current transmission project to high energy arc faults. This research investigates the dynamic response and the vulnerable areas of the ultra‐high voltage converter transformer under the ...
Ke Wang   +5 more
wiley   +1 more source

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