Results 131 to 140 of about 81,751,409 (230)

NAADF: Globally Illuminated Voxel Worlds Accelerated with Nested Axis‐Aligned Distance Fields

open access: yesComputer Graphics Forum, EarlyView.
Abstract Achieving realistic rendering of 3D scenes in real time using path tracing is challenging due to the high sample count required, with ray tracing as the bottleneck. Focusing on voxels as a geometry representation offers significant opportunities for optimizations, especially for tracing the rays, but also for computing the samples.
A. Ulschmid   +4 more
wiley   +1 more source

Survey on Compositional 3D Indoor Scene Generation

open access: yesComputer Graphics Forum, EarlyView.
This survey provides a comprehensive overview of compositional 3D indoor scene generation, introducing a unified framework for categorizing existing methods, comparing their strengths and limitations and identifying key challenges and future research directions.
H. I. I. Tam   +7 more
wiley   +1 more source

Targeting PCSK9 in Vascular Smooth Muscle Cells: An Effective Strategy to Suppress Ferroptosis and Attenuate Abdominal Aortic Aneurysm Progression

open access: yesCell Proliferation, EarlyView.
PCSK9 aggravates AAA by promoting ferroptosis in VSMCs. In the pathological AAA environment, PCSK9 upregulation triggers ferritinophagy‐dependent degradation of FTH1, leading to Fe2+ release, triggering lipid peroxidation and ferroptosis, exacerbating AAA.
Mengdie Xia   +13 more
wiley   +1 more source

Gendered Effects of the Minimum Wage

open access: yesInternational Economic Review, EarlyView.
ABSTRACT Women work disproportionately in low‐hours jobs, which pay lower wages and are more exposed to minimum‐wage policies. We estimate an equilibrium search model with worker and firm heterogeneity, jobs differing in wages and hours, and imperfect compliance. Applied to Germany, the 8.50 € minimum wage reallocates women toward higher‐hours jobs and
Alessandro Di Nola, Haomin Wang
wiley   +1 more source

An autonomous and guided crowd in panic situations

open access: yesJournal of Computer Science and Technology, 2007
This paper describes a model for simulating crowds in real time. We deal with the hierarchy of the crowd, groups and individuals. The groups are the most complex structure that can be controlled in different degrees of autonomy.
Cherif Foudil, Djedi Noureddine
doaj  

Crowd evacuation analysis using agent-based simulation

open access: yes, 2017
Crowd simulation in the area of artificial intelligence has seen the rise in importance over the years. The application of tools can be used to simulate different scenarios from crowds in a particular place to evacuation scenario during emergencies ...
Seah, Kwang Beng
core  

Freight distribution optimization by implementing the team orienteering problem with occasional drivers

open access: yesInternational Transactions in Operational Research, EarlyView.
Abstract This research evaluates the effectiveness of a hybrid crowdshipping system that integrates occasional drivers with traditional delivery services (OD+TD) to improve the efficiency of freight distribution. By implementing the team orienteering problem with occasional drivers model, we develop a mathematical model and an agile optimization ...
Alisson Garcia‐Herrera   +4 more
wiley   +1 more source

Multiagent System Applied to the Modeling and Simulation of Pedestrian Traffic in Counterflow [PDF]

open access: yes
An agent-based model to simulate a pedestrian crowd in a corridor is presented. Pedestrian crowd models are valuable tools to gain insight into the behavior of human crowds in both, everyday and crisis situations.
Ana Luisa Ballinas-Hernández   +2 more
core  

Assessing second‐price auctions for parcel exchanges in last‐mile logistics

open access: yesInternational Transactions in Operational Research, EarlyView.
Abstract The rapid growth of e‐commerce has led to multiple carriers operating in the same regions, creating opportunities for collaboration. However, logistics companies typically operate independently, leading to inefficiencies. Horizontal cooperation, where carriers share resources and infrastructure, can improve efficiency and reduce costs.
Christian Truden, Margaretha Gansterer
wiley   +1 more source

Optimizing equity and efficiency in the aerial firefighting resource allocation problem

open access: yesInternational Transactions in Operational Research, EarlyView.
Abstract This study addresses the aerial firefighting resource allocation problem, formulated as the strategic prepositioning of a heterogeneous aerial firefighting fleet across capacity‐constrained airbases. A novel bi‐objective model is proposed that simultaneously optimizes efficiency (aggregate risk‐weighted accessibility) and equity (minimized ...
Konstantinos A. Tasias, George Nenes
wiley   +1 more source

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