Results 131 to 140 of about 4,094,201 (307)

Noise-Aware UAV Path Planning in Urban Environment with Reinforcement Learning

open access: yesEngineering Proceedings
This research presents a comprehensive approach for mitigating noise pollution from Unmanned Aerial Vehicles (UAVs) in urban environment by using Reinforcement Learning (RL) for flight path planning.
Shahin Sarhan   +3 more
doaj   +1 more source

Japan (South) [cartographic material] : special strategic map /

open access: yes, 1943
Map of southern Japan showing transportation, water features and populated places. Relief shown by hachures and spot heights.; "6/43 N/P".; Also available online http://nla.gov.au/nla.map ...
United States. Army Map Service.
core  

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

open access: yesAdvanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal   +2 more
wiley   +1 more source

EVALUATION OF NOISE POLLUTION IN ILAM CITY IN 2018

open access: yesJournal of Air Pollution and Health, 2018
Introduction: High level of noise can be harmful for human mental and physical health. Therefore, it is important to study the noise pollution in cities. The aim of this study is to investigate the situation of noise pollution in Ilam, Iran.
Javad Hatamzadi   +2 more
doaj  

Solomons [cartographic material] : special strategic map /

open access: yes, 1962
Ed. 1-AMS. Map of the Solomon Islands showing chief administrative centers, principal villages or ports, other villages, roads and trails. Relief shown by hachures and spot heights.; "2-62."; Also available online http://nla.gov.au/nla.map-vn5748166 ...
United States. Army Map Service.
core  

Density Measurement of Irradiated and Nonirradiated Zirconium Oxide by Ptychographic X‐Ray Computed Tomography (PXCT)

open access: yesAdvanced Engineering Materials, EarlyView.
Mass density governs the protective behavior of oxide layers on nuclear fuel cladding. Ptychographic X‐ray computed tomography measures zirconium oxide grown on Zircaloy‐4 under reactor and autoclave conditions, revealing nearly identical bulk densities of 5.1 ± 0.80 g cm−3.
Okan Yetik   +9 more
wiley   +1 more source

Influence of Scan Strategies in Electron Beam Powder Bed Fusion on Solidification, Microstructure, and High‐Temperature Compressive Properties of γ′‐Strengthened Inconel 738LC

open access: yesAdvanced Engineering Materials, EarlyView.
Experiments and thermophysical simulations were conducted to investigate the electron beam powder bed fusion electron beam (PBF‐EB/M) process for the γ′‐strengthened nickel‐based superalloy Inconel 738LC. The results demonstrate the impact of process‐induced microstructural variations on high‐temperature mechanical behavior, providing a basis for ...
Jan Niklas Petenati   +11 more
wiley   +1 more source

India and Pakistan 1:250,000 [cartographic material] /

open access: yes, 1959
Various eds. Topographic map series of India and Pakistan showing populated places, railroads, boundaries and roads. Relief shown by contours and spot heights.
United States. Army Map Service.
core  

Controlling Grain Growth in Powder Bed Fusion of Yttria‐Stabilized Zirconia Using Femtosecond Lasers: Challenges and Methodological Insights

open access: yesAdvanced Engineering Materials, EarlyView.
Binder‐free laser powder bed fusion of 8YSZ with a femtosecond laser is used to map process windows linking scan strategy, heat accumulation, and grain growth. Time‐resolved thermography and simulations reveal thermal regimes that enable continuous, vitrified, and fine‐grained 8YSZ surface layers without absorptive additives and demonstrate ...
Markus Kühn   +5 more
wiley   +1 more source

A novel method for constructing large-scale industrial noise maps based on open source data

open access: yesNoise Mapping
This study proposed a method of obtaining the type and quantity of equipment in factories by inquiring environmental impact assessment reports, which greatly improves the efficiency of gathering factory information.
Wang Yubin, Lee Hsiao Mun
doaj   +1 more source

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