In the construction of complex antenna structures, a number of feature points are inevitably formed on the main reflector surface of the antenna structure by bolting, riveting, cabling, and weldi ... Read More

The demilitarized zone (DMZ) in Korea, a 4-km-wide military-free zone at the border between South Korea and North Korea, has been well preserved for half a century and has a high ecological value ... Read More

In this study, a curvature change tracking program was developed to evaluate curvature changes in the main reflector of a very long baseline interferometry (VLBI) antenna structure. The data fro ... Read More

All facilities become obsolete over time and require continuous maintenance and monitoring for safety. Bridges should be maintained to preserve their function during their life time and regularl ... Read More

Credible information regarding carbon stock is the fundamental underlying basis for forestry carbon trading. The current measurement, reporting, and verification (MRV) system uses various emissi ... Read More

In this study, we analyzed the characteristics of microclimate in three types of coniferous forest stand in mountainous areas of Korea, categorized as Pinus densiflora Siebold & Zucc. (PD), Pinus ... Read More

Unmanned aerial vehicles (UAVs) are becoming an economical and efficient means to create digital maps, but until now, the vectorization method has been used to extract topographic features from o ... Read More

Urban forests are crucial to alleviate climate change by reducing the amount of carbon dioxide (CO2) in the atmosphere. Although recent research has mapped the ecosystem service worldwide, most ... Read More

The prevalence of location-aware devices has propelled studies on the analysis of movement data. In this study, we investigated anomaly detection in taxi trajectories. A projection method was u ... Read More

In urban environments, the location accuracy of autonomous vehicles and unmanned aerial vehicles (UAVs) using navigation systems may be degraded because the global navigation satellite system (GN ... Read More

The result of vegetation cover classification greatly depends on the classification methods. Accuracy analysis is mostly performed using the error matrix in remote sensing. In recent remote sen ... Read More

Smart card transactions contain user information and travel patterns. Thus, in this study, elderly smart card transactions were analyzed to determine elderly captive riders’ hot spots that nee ... Read More

Rancidity data can be used in various fields such as the quality analysis of food and raw materials used for construction. The rancidity of raw materials used in road pavement asphalt is current ... Read More

The fish-eye lens camera has the advantage of efficient acquisition of image data through a wide field of view. However, unlike the perspective projection camera, a strong geometric distortion e ... Read More

After the division of the Korean peninsula, North Korea overexploited their natural resources especially the forest. It lost about 23% of the total forest from 1990 to 2011, which continues toda ... Read More

Global Navigation Satellite System (GNSS)-based survey technology improves the accuracy and usability of location information by enabling the rapid updating of different information and the effic ... Read More

Sustainability requires equilibrium in the use of resources. The United Nations launched 17 Sustainable Development Goals (SDGs) to overcome the world’s challenges, including poverty, inequali ... Read More