Explanipedia

Advancing Stem Volume Estimation Using Multi-Platform LiDAR and Taper Model Integration for Precision Forestry Open

Yong Kyu Lee, Jung‐Soo Lee · 2025

Stem volume is a critical factor in managing and evaluating forest resources. At present, stem volume is commonly estimated indirectly by constructing a taper model that utilizes sampling, diameter at breast height (DBH), and tree height. …

Selection of Trees for Thinning Using Machine Learning Algorithms and Competition Indices Open

Yong Kyu Lee, Jungsoo Lee, Sang-Kyun Han, Hyo-Vin Ji, Jin-Woo Park · 2025

In artificial forests, regular thinning is required to promote diameter growth for producing high-quality, large-diameter timber. However, selecting trees for thinning often relies on qualitative and subjective assessments by field workers…

Pullulan-Based Self-Nanoemulsifying Granules: A Functional Carbohydrate Matrix for Stabilizing and Modulating the Release of Hydrophobic Extracts Open

Edwin J. Bunggulawa, Yong Kyu Lee · 2025

Cuag Alloy-Driven Low-Temperature Bonding for Advanced 3d Packaging Open

Jae-Ho Jun, Sanghan Lee, Yong Kyu Lee, Yong Ho Ko, Chang Woo Byun , et al. · 2025

Effects of precoating color formulation with coarse ground calcium carbonate and porous precipitated calcium carbonate on paperboard properties and printability Open

Sun Goo Kim, Sung Jong Yoo, Yong Kyu Lee, Jin-Ho Seo · 2024

To identify suitable pigments for the precoating of paperboard, the rheological properties of coating colors and their effects on the surface and printing properties of coated paperboard were evaluated with respect to the type and combinat…

Electric double layer in ionic liquids: A result of interplay between coupling effects and phase demixing Open

YeongKyu Lee, JunBeom Cho, Yong Kyu Lee, Won Bo Lee, YongSeok Jho · 2024

Ionic liquids (ILs) are appealing electrolytes for their favorable physicochemical properties. However, despite their longstanding use, understanding the capacitive behavior of ILs remains challenging. This is largely due to the formation …

Evaluation of Accuracy in Estimating Diameter at Breast Height Based on the Scanning Conditions of Terrestrial Laser Scanning and Circular Fitting Algorithm Open

Yong Kyu Lee, Jung‐Soo Lee · 2024

A growing societal interest exists in the application of lidar technology to monitor forest resource information and forestry management activities. This study examined the possibility of estimating the diameter at breast height (DBH) of t…

Electric Double Layer from Phase Demixing Reinforced by Strong Coupling Electrostatics Open

YeongKyu Lee, JunBeom Cho, Yong Kyu Lee, Won Bo Lee, YongSeok Jho · 2023

Ionic liquids (ILs) are appealing electrolytes for their favorable physicochemical properties. However, despite their longstanding use, understanding the capacitive behavior of ILs remains challenging. This is largely due to the formation …

Evaluation of Physical Properties of Coated Paper Blended with Zeolite in Pre-Coating Layer Open

Min Je Kim, Sun Goo Kim, Sung Jong Yoo, Yong Sik Kim, Yong Kyu Lee · 2023

Zeolite is a pigment that can be easily obtained with a large amount of domestic reserves and has excellent hydrophilicity due to its porous structure. In addition, it has the advantage of simple processing without the need for chemical mo…

Effect of Application of VAE Emulsion and Water-Soluble Resin Binder on the Properties of Coated Paper Open

Sun Goo Kim, Sung Jong Yoo, Yong Sik Kim, Yong Kyu Lee · 2023

When binders with different physical properties were applied to the pre-coat layer, coating layers having different properties were formed. This was because the characteristics of the top-coating vary depending on the top-coating layer. In…

Forest Inventory Assessment Using Integrated Light Detection and Ranging (LiDAR) Systems: Merged Point Cloud of Airborne and Mobile Laser Scanning Systems Open

Yong Kyu Lee, Heesung Woo, Jung‐Soo Lee · 2022

Precise assessment of forest inventory can help optimize timber value and industrial forestmanagement planning.Light detection and ranging (LiDAR) technology has been recently introduced in forestry to effectively and precisely estimate an…

Evaluation of Hyperparameter Combinations of the U-Net Model for Land Cover Classification Open

Yong Kyu Lee, Woodam Sim, Jeongmook Park, Jungsoo Lee · 2022

The aim of this study was to select the optimal deep learning model for land cover classification through hyperparameter adjustment. A U-Net model with encoder and decoder structures was used as the deep learning model, and RapidEye satell…

A comparative analysis of forest area differences between statistics information and spatial thematic maps Open

Jeong Mook Park, Yong Kyu Lee, Jungsoo Lee · 2022

Securing reliable data on forest areas is necessary for the establishment of various policies and decision-making for forest administration. In this study, the definition of forest, minimum partitioning criteria, purpose of production, pro…

Defect Generation in Data-Storage Layer by Strong Ion Bombardment for Multi-Level Non-Volatile Memory Applications Open

Seongmin Park, TaeWon Seo, Changmin Jeon, Yong Kyu Lee, Yoonyoung Chung · 2022

Assessment of Machine Learning Algorithms for Land Cover Classification Using Remotely Sensed Data Open

Jeongmook Park, Yong Kyu Lee, Jungsoo Lee · 2021

The purpose of this study was to apply the random forest (RF), XGBoost, and LightGBM machine learning (ML) algorithms to land cover classification, and to present the model tuning process for each algorithm.Sentinel-2 satellite images were…

Polycrystalline SnSe with a thermoelectric figure of merit greater than the single crystal Open

Chongjian Zhou, Yong Kyu Lee, Yuan Yu, Sejin Byun, Zhong‐Zhen Luo , et al. · 2021

Assessment of REDD+ Suitable Area for Sustainable Forest Management in Paraguay Open

Jeongmook Park, Yong Kyu Lee, Byeongmin Lim, Jungsoo Lee · 2020

This study extracted deforestation area and degraded forestland area, which are potential REDD+ (Reducing Emissions from Deforestation and Forest Degradation) project candidate areas in Paraguay using Land Cover Map (LCM) and Tree Cover Ma…

Green synthesis of AgNPs using lignocellulose nanofibrils as a reducing and supporting agent Open

Jun-Kyu Han, Madhusudhan Alle, Rajkumar Bandi, Chan-Woo Park, Jin‐Chul Kim , et al. · 2020

A novel green approach was developed for producing silver nanoparticles (AgNPs) using lignocellulose nanofibrils (LCNF). This method does not require any additional reducing agent, and the LCNF itself serves both as a reducing agent and a …

The development of new SnSe-based materials with ultrahigh thermoelectric figure of merit ZT Open

Yong Kyu Lee · 2020

Biomimetic Gold Nanoshell‐Loaded Macrophage for Photothermal Biomedicine Open

Sung Hun Kang, Yong Kyu Lee, Il Seok Park, In‐Kyu Park, Seok Min Hong , et al. · 2020

The purpose of this study was to investigate the effect of photothermal treatment (PTT) with gold nanoshell (ANS) using a macrophage‐mediated delivery system in a head and neck squamous cell carcinoma (HNSCC) cell line. To achieve this, AN…

A Comprehensive Survey of Recent Routing Protocols for Underwater Acoustic Sensor Networks Open

Tariq Islam, Yong Kyu Lee · 2019

Underwater Sensor Networks (UWSN) have attracted huge attention due to their significance in oceanic observation and exploration. They offer a vast number of applications, many of which require routing the sensed data to a centralized loca…

Adhesive Properties of UV-Curing Liquid for Non-Porous Surface—Influence of Monofunctional Monomer— Open

Kyoung-Mo Jeong, Sun-Goo Kim, Jeong-Yong Ryu, Yong Kyu Lee, Ken’ichi Koseki · 2019

オリゴマー,多官能モノマー,単官能モノマーを使用する多少複雑なUV硬化型インキの系を設計し,それらの化学的・物理的な諸性質の違いがインキの接着特性にどのような影響を及ぼすかについて評価などを行っている.先行研究においては三官能モノマーと二官能モノマーとの影響を中心に報告したことであり,本研究ではインキの接着性に対する単官能モノマーの影響について検討した.その結果,メタクリレート系モノマー(CHMA,HEMA)を用いて作製したインキは,アクリレート系モノマーを用いて作製したイ…

A Two-Stage Localization Scheme with Partition Handling for Data Tagging in Underwater Acoustic Sensor Networks Open

Tariq Islam, Yong Kyu Lee · 2019

Knowledge about the geographic coordinates of underwater sensor nodes is of primary importance for many applications and protocols of under water sensor networks (UWSNs) thus making localization of sensor nodes a crucial part of underwater…

A Cluster Based Localization Scheme with Partition Handling for Mobile Underwater Acoustic Sensor Networks Open

Tariq Islam, Yong Kyu Lee · 2019

Many applications of underwater sensor networks (UWSNs), such as target tracking, reconnaissance and surveillance, and marine life monitoring require information about the geographic locations of the sensed data. This makes the localizatio…

Surface Oxide Removal for Polycrystalline SnSe Reveals Near-Single-Crystal Thermoelectric Performance Open

Yong Kyu Lee, Zhong‐Zhen Luo, Sung Pyo Cho, Mercouri G. Kanatzidis, In Jae Chung · 2019

Analysis on the Relative Efficiency based on Data Envelopment Analysis for Colleges in South Korea - Focused on Evaluation of Basic Competency in College - Open

김도진, Yong Kyu Lee · 2019

Influence of KOCC Swelling by Soaking after Beating on Pulp and Paper Properties Open

Jin Mo Kim, Im Jeong Hwang, Jun Kyu Han, Yong Kyu Lee, Jong Myoung Won · 2018

KOCC is used as a very important raw material in industrial paper manufacturing in Korea. However, as KOCC is repeatedly used as a raw material, the aging and hornification of the pulp becomes more severe, making it difficult to produce in…

FT반응 Off-gas를 이용한 고압축비 전기점화 엔진의 연소 및 배기가스 특성에 관한 연구 Open

정탄, 이준순, Yong Kyu Lee, 김창업, 오승묵 · 2018

FT process is a technology of chemical reactions that converts a mixture of carbon monoxide and hydrogen into liquid hydrocarbons. During the FT process unreacted gas, known as Off-gas which has low-calorie, is discharged. In this study, w…

Rheological Properties of UV-curable Ink - Influence of the Pre-polymer and Colorant - Open

Kyoung Mo Jeong, Sun Goo Kim, Jong Myoung Won, Yong Kyu Lee, Ken’ichi Koseki · 2017

In this study, the rheological properties of UV-curable ink were investigated. UV flexo/gravure-type suspension of carbon black in liquid medium containing various binding materials, such as acrylate pre-polymers, di-/multi-functional mono…

Utilizing Cellulose Nanofibril as an Eco-Friendly Flocculant for Filler Flocculation in Papermaking Open

Ming He, Byoung‐Uk Cho, Yong Kyu Lee, Jong Myoung Won · 2016

Cellulose nanofibril (CNF) is a type of nano-sized cellulosic material with a high aspect ratio and a large specific surface area, which makes it a promising additive to flocculate particles such as fillers. In this study, CNFs were prepar…

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