Zobrazeno 1 - 10
of 378
pro vyhledávání: '"Jong-Sub Lee"'
Publikováno v:
Case Studies in Construction Materials, Vol 21, Iss , Pp e03544- (2024)
Highly porous cementitious materials have been utilized in various geotechnical applications, such as filling subsurface cavities, backfilling, and enhancing loose layers. In particular, expandable foam grout (EFG) has significant potential for cavit
Externí odkaz:
https://doaj.org/article/a673bd203e1a45b387493025b80d098d
Publikováno v:
Case Studies in Construction Materials, Vol 20, Iss , Pp e03192- (2024)
In urban areas, backfilling voids with complex and narrow shapes necessitates alternative backfill methods and materials, such as controlled low-strength materials (CLSMs), to minimize ground subsidence caused by improper compaction of backfill soils
Externí odkaz:
https://doaj.org/article/8c777b25b52e47b79a0639f2c25e1d35
Autor:
Jong-Sub Lee, Jung-Doung Yu
Publikováno v:
Developments in the Built Environment, Vol 17, Iss , Pp 100365- (2024)
This study aims to inspect grout defects in rock bolts using electromagnetic (EM) waves. The experiments are conducted using one intact rock bolt and eight defective rock bolts with defect ratios (DR) of 10–50%. A two-conductor transmission line is
Externí odkaz:
https://doaj.org/article/88aaace72173412e8069e87ee72b6657
Publikováno v:
Results in Engineering, Vol 21, Iss , Pp 101874- (2024)
The aim of this study is to enhance the anomaly detection capabilities of ground-penetrating radar (GPR) images by adopting a novel loss function composed of cross-entropy and reconstruction loss. The reconstruction loss measures the error between th
Externí odkaz:
https://doaj.org/article/8beeef1a81cb4c5382030536784e2849
Publikováno v:
Journal of Water and Climate Change, Vol 14, Iss 10, Pp 3855-3877 (2023)
This study evaluates the appropriateness of general circulation model-based future rainfall data used in Korea. The evaluation is done through the analysis of long-term occurrence characteristics of dry years, as well as the analysis of the water sup
Externí odkaz:
https://doaj.org/article/db44a43435fa4ffa9c6de8301912e61b
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-10 (2022)
Abstract Foam cement is an engineered lightweight material relevant to a broad range of engineering applications. This study explores the effects of aluminum chips on cement-bentonite slurry expansion, pressure development, and the evolution of pore
Externí odkaz:
https://doaj.org/article/a5f44a0df8e34bf6820d3d83c7ab20d7
Publikováno v:
Polymers, Vol 15, Iss 7, p 1692 (2023)
This paper proposes a performance-based mix design (PBMD) framework to support performance-related specifications (PRS) needed to establish relationships between acceptable quality characteristics (AQCs) and predicted performance, as well as to devel
Externí odkaz:
https://doaj.org/article/aa8084afa47e448bb2783e27446b30eb
Publikováno v:
Polymers, Vol 15, Iss 3, p 727 (2023)
The purpose of this research was to promote the recycling of pellet asphalt with Crumb Rubber Modifier (CRM) and Graphite Nanoplatelet (GNP) in pothole restoration. In this study, several laboratory tests were carried out on mixes containing CRM cont
Externí odkaz:
https://doaj.org/article/8f36c407fc464a9393b0676bcc4474c5
Autor:
Jung-Doung Yu, Jong-Sub Lee, Bibek Tamang, Sungyong Park, Sukhyun Chang, Jungmyeon Kim, Yongseong Kim
Publikováno v:
Advances in Civil Engineering, Vol 2020 (2020)
This study aims to evaluate the sensing performance of glass fiber-reinforced polymer (GFRP) rock bolt sensors instrumented with strain gauges for monitoring rockslides. Experimental studies are conducted with four different types of GFRP rock bolt s
Externí odkaz:
https://doaj.org/article/bd29c2fc7a48492ba17b108ff61c2eef
Publikováno v:
Sensors, Vol 21, Iss 9, p 2941 (2021)
The objective of this study is to detect a cavity and estimate its size using sound waves in a laboratory model chamber filled with dry sand. One side of the chamber is covered with an acrylic plate, and a cavity is placed between the plate and sand.
Externí odkaz:
https://doaj.org/article/92831ba845e344d8b4e3b2334d743edb