Korea Institute of Civil Engineering and Building Technology

Acquisition Realism in Virtual Terrestrial Laser Scanning of IFC Bridge Models: A Screening Study of Boundary-Aware Synthetic-to-Real Transfer for Point Cloud Segmentation

Terrestrial laser scanning (TLS) of bridges supports as-built reconstruction and digital-twin maintenance, but semantic segmentation of such scans is limited by annotation cost, and synthetic point clouds generated from building information models (BIM/IFC) are the established re...

Experimental Analysis of the Temperature Rise Characteristics in Nonmetallic Pipe Firestop Systems

Elucidating the high-temperature characteristics of nonmetallic pipe firestop systems is challenging because they undergo softening, deformation, melting, or pyrolysis at high temperatures, and experimental data examining the high-temperature behavior of nonmetallic pipe material...

Comparison of Radiographic Outcomes Between TPLO + TTT and CTWO + TTT in Dogs with Concurrent Cranial Cruciate Ligament Rupture and Medial Patellar Luxation

Cranial cruciate ligament (CrCL) rupture frequently occurs with medial patellar luxation (MPL) in small-breed dogs, and both conditions may be corrected during surgery using a proximal tibial osteotomy—tibial plateau leveling osteotomy (TPLO) or cranial tibial wedge osteotomy (CT...

RGB-Derived Canopy Height Models for Riparian Woody Vegetation Monitoring Using Depth Anything V2

Rivers and riparian zones support a variety of woody plant species and play an important role in riverine ecosystems and fluvial processes. Rapid establishment of herbaceous and woody vegetation occurs in unvegetated river channels, mainly because of dam construction and hydrolog...

Long-Range Hydrogen Gas Measurement via Raman and Rayleigh–Brillouin Backscattering

Hydrogen (H2) is a promising energy carrier, but its wide flammability range requires rapid and reliable leak detection. In this study, we developed a non-contact stand-off ultraviolet (UV) light detection and ranging (lidar) system that simultaneously acquires Raman and Rayleigh...

In-situ evaluation of an interior suspended-film multi-cavity glazing retrofit for existing curtain-wall buildings

This study proposed a glazing retrofit system (hereafter GR system) in which an interior suspended-film unit was added to an existing Low-E double-glazed curtain-wall assembly to form a multi-cavity assembly, and experimentally evaluated its short-term winter thermal performance....

Comparative analysis of associations between facility structure and air quality managers’ knowledge, attitudes, and practices by COVID-19 outbreak status in welfare facilities for persons with disabilities: a cross-sectional survey study in South Korea

Objectives: This study investigated associations between building structure and managers' knowledge, attitudes, and practices (KAP) regarding indoor air quality in welfare facilities for persons with disabilities, comparing facilities with and without coronavirus disease 2019 (CO...

Round robin test on polystyrene bead number concentration measurement using flow cytometry and commercial automated particle counters

Abstract Reliable particle counting is critical for applications such as clinical monitoring and cell therapy manufacturing. However, various particle counters using different measurement principles are employed, and the absence of reference materials makes standardization challe...