Results 51 to 60 of about 9,253 (234)

VAE+DDPG: An Attention‐Enhanced Variational Autoencoder for Deep Reinforcement Learning‐Based Autonomous Navigation in Low‐Light Environments

open access: yesAdvanced Intelligent Systems, EarlyView.
Variational Autoencoder+Deep Deterministic Policy Gradient addresses low‐light failures of infrared depth sensing for indoor robot navigation. Stage 1 pretrains an attention‐enhanced Variational Autoencoder (Convolutional Block Attention Module+Feature Pyramid Network) to map dark depth frames to a well‐lit reconstruction, yielding a 128‐D latent code ...
Uiseok Lee   +7 more
wiley   +1 more source

Evaluation of Mechanical Properties of Roller Compacted Concrete [PDF]

open access: yesEngineering and Technology Journal, 2014
The main aim of this research is to study the effect of using the additive materials (hydrated lime and metakaolin) on the behavior of roller compacted concrete.
Mohamed Abdul-Razzaq Ahmed   +1 more
doaj   +1 more source

Mechanical properties of roller compacted concrete containing recycled concrete aggregate

open access: yesRevista de la construcción, 2021
The compressive strength, splitting tensile strength, pulse velocity, and drop weight impact resistance of roller-compacted concrete (RCC) mixtures containing recycled concrete aggregate (RCA) were investigated. The cement contents of the RCC mixtures were chosen as 150, 200 and 250 kg/m3.
Hosseinnezhad, Hojjat   +3 more
openaire   +3 more sources

High‐Speed Altitude Regulation With Neuromorphic Camera and Lightweight Embedded Computation

open access: yesAdvanced Intelligent Systems, EarlyView.
Neuromorphic cameras deliver rapid, high‐dynamic‐range sensing but overwhelm embedded processors at high speeds. This work presents a lightweight, optimized Lucas–Kanade optical flow method with parallelization, gyroscopic derotation, and adaptive event slicing.
Simon L. Jeger   +3 more
wiley   +1 more source

Modeling of combined thermal and mechanical action in roller compacted concrete dam by three-dimensional finite element method [PDF]

open access: yes, 2013
A combined thermal and mechanical action in roller compacted concrete (RCC) dam analysis is carried out using a three-dimensional finite element method. In this work a numerical procedure for the simulation of construction process and service life of RCC
Abdulrazeg, Aeid Ali   +3 more
core   +1 more source

Engineering Biochar‐Derived Functional Materials for High‐Performance Supercapacitors: Design Principles, Mechanisms, and Scalable Strategies

open access: yesCarbon Energy, EarlyView.
ABSTRACT Biochar has emerged as a useful and adaptable source of carbon for supercapacitor electrodes. Its value comes from the way biomass chemistry, thermal conversion, and activation conditions shape the resulting pore network, surface groups, and degree of carbon ordering.
Soumen Mandal   +6 more
wiley   +1 more source

Analysis of Related Technical Problems of RCCD Ultra-long Core Samples Based on Huangdeng Hydropower Station

open access: yesRenmin Zhujiang, 2020
For the 24.6 m of the world's longest roller compacted concrete coresamples taken out during the quality inspection of RCCD (roller compacted concretedam) at Huangdeng Hydropower Station, in order to better analyze and summarize theexperience of roller ...
HU Hongxia
doaj  

RC concrete versus conventional concrete in pavement [PDF]

open access: yes, 2009
This article contains a discussion on roller-compacted concrete(RCC)or zero-slump concrete construction techniques. While discussing the various aspects of RCC, this study introduces the similarities and differences between conventional concrete and RCC ...
Kalantari, Behzad   +2 more
core  

Evaluating the cooling rate of hot mix asphalt in tropical climate [PDF]

open access: yes, 2016
This paper aims to investigate the environmental effect on cooling rate and to determine the appropriate time available for compaction (TAC) using laboratory tests.
Abdul Hassan, Norhidayah   +5 more
core   +1 more source

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