Results 1 to 10 of about 23,083,271 (253)

Enhancing the properties of alkali-activated slag through dry ice addition: Investigation of hydration products and performance characteristics

Journal of Materials Research and Technology, 2023
To study the effect of dry ice on the performance of alkali-activated binders, we added dry ice to an alkali-activated slag (AAS). The addition amount was set to 5%, 10%, and 15% of the slag mass, depending on the amount of CO2 emitted by the material ...
Yi Han, Runsheng Lin, Jongyeon Lim, Xiao-Yong Wang   +3 more
doaj   +1 more source

Modeling Simulation and Experimental Verification of Focal Length Optimization in Linear Fresnel Collector

发电技术
ObjectivesIn order to improve the concentrated light interception rate of linear Fresnel collector (LFC), increase the error control threshold of the tracking system, and enhance the system’s photothermal conversion efficiency, it is necessary to study ...
ZHANG Zhiyong, KONG Linggang, FAN Duojin, LU Xiaojuan   +3 more
doaj   +1 more source

Selection of Input Variables and Comparison of Artificial Neural Networks and One-Dimensional Convolutional Neural Networks for Prediction of Wind Power Generation in Yeongheung Wind Power Plant

대한환경공학회지, 2021
Objectives : In this study, deep learning models of artificial neural network (ANN) and one-dimension convolutional neural networks (1D-CNN) were compared to predict nonlinear wind power generation at Yeongheung wind power plant.
Tae-Hui Park, Da-Seul Jang, Gyeong-Min Bae, Kyung-Min Kim, Johng-Hwa Ahn   +4 more
doaj   +1 more source

Diagnosis of Reverse-Connection Defects in High-Voltage Cable Cross-Bonded Grounding System Based on ARO-SVM

Sensors
High-voltage (HV) cables are increasingly used in urban power grids, and their safe operation is critical to grid stability. Previous studies have analyzed various defects, including the open circuit in the sheath loop, the flooding in the cross-bonded ...
Yuhao Ai, Bin Song, Shaocheng Wu, Yongwen Li, Li Lu, Linong Wang   +5 more
doaj   +1 more source

Anomaly distribution acquisition method for probabilistic damage tolerance assessment of hole features

Propulsion and Power Research
Anomaly distribution is an essential input for the probabilistic damage tolerance assessment, which is required by the airworthiness certification criteria Federal Aviation Regulation (FAR) 33.70.
Guo Li, Huimin Zhou, Junbo Liu, Shuyang Xia, Shuiting Ding   +4 more
doaj   +1 more source

An Integrated Hydration and Property Evaluation Model for Coral Powder–Cement Binary Blends

Buildings
With the rise in the marine industry and marine tourism, coral powder is increasingly used to make concrete for marine islands. This study proposes a three-parameter hydration model and a hydration kinetic model to predict the performance of coral powder
Li-Yi Meng, Xiao-Yong Wang
doaj   +1 more source

Analysis of Hydration Strength and CO₂ Emissions of Cement–Quartz Powder Binary Blends Considering the Effects of Water/Binder Ratios and Quartz Contents

Applied Sciences
Low-carbon design has become increasingly important in the cement and concrete industry. Previous studies have primarily focused on the impact of different types of admixtures on the carbon emissions of concrete while overlooking the influence of the ...
Bo Yang, Xiao-Yong Wang
doaj   +1 more source

A novel arc signal and motor power synchronization-based method for precise contact fault diagnosis of GIS disconnector

Scientific Reports
Gas-insulated switchgear (GIS) disconnectors play an important role in power systems, and their mechanical condition is critical for operational reliability. However, existing diagnostic methods frequently fail to accurately identify critical operational
Song He, Jiangjun Ruan, Yufei Liu, Feiyue Yan, Rui Luo   +4 more
doaj   +1 more source

Overview of Coordinated Control Strategies of Wind Farm Integrated MMC-HVDC

CES Transactions on Electrical Machines and Systems
With the development of onshore power grid projects in desert, Gobi and desertified regions as well as offshore wind power projects, electric energy requires long-distance transmission due to insufficient local consumption.
Jingyi Zhang, Huiru Yang, Zhen Tian, Meng Huang, Pan Feng, Fei Liu, Zhe Chen, Ruanming Huang, Xiaoming Zha   +8 more
doaj   +1 more source

An integrated strength-carbon emissions-total cost model for silica fume concrete

Case Studies in Construction Materials
Silica fume (SF) is widely used as an additive to produce high-performance concrete. Previous models for evaluating the sustainable performance of silica fume concrete lacked systematicity and were not convenient for engineering applications.
Li-Yi Meng, Yi-Sheng Wang, Feng Sun, Runsheng Lin, Xiao-Yong Wang   +4 more
doaj   +1 more source