Chang-Deuk Eom
YOU?
Author Swipe
View article: Climate change mitigation potential of cascading utilization of wood resources
Climate change mitigation potential of cascading utilization of wood resources Open
Harvested wood products are a carbon pool that can be included in the national greenhouse gas inventory and are attracting attention as an important tool for reducing greenhouse gas emissions. This study evaluates the carbon reduction pote…
View article: Correlation analysis between mass loss of wood due to thermal modification and equilibrium moisture content of thermally modified wood
Correlation analysis between mass loss of wood due to thermal modification and equilibrium moisture content of thermally modified wood Open
This study was conducted to determine the correlation between the mass loss (ML) of wood due to thermal modification and the equilibrium moisture content (EMC) of thermally modified wood. After thermal modification of larch lumber under va…
View article: Kinetic study of torrefied woody biomass via TGA using a single heating rate and the model-fitting method
Kinetic study of torrefied woody biomass via TGA using a single heating rate and the model-fitting method Open
A model-fitting method at a single heating rate (10 °C·min-1) was used to investigate the thermal kinetic characteristics of torrefied woody biomass. The kinetic parameters were examined for pine, oak, and bamboo samples with the order of …
View article: Effects of knife-incising and longitudinal kerfing pretreatments on high-temperature drying of red pine and pitch pine timbers
Effects of knife-incising and longitudinal kerfing pretreatments on high-temperature drying of red pine and pitch pine timbers Open
Effects of knife-incising and longitudinal kerfing pretreatments were analyzed relative to the high-temperature drying of red pine and pitch pine timbers with cross-sections less than 15 cm. Specimens were prepared as round and square timb…
View article: Preprocessing Miscanthus sacchariflorus with Combination System of Cone Grinder and Air Classifier
Preprocessing Miscanthus sacchariflorus with Combination System of Cone Grinder and Air Classifier Open
Considerable differences exist in the characteristics of size reduction and classification because of biomass species. Miscanthus sacchariflorus (M. sacchariflorus) Goedae-Uksae 1 is not used efficiently because of the imperfections of the…
View article: Development and Assessment of Harmful Gases Reducing Molded Fuel Using Torrefied Wood
Development and Assessment of Harmful Gases Reducing Molded Fuel Using Torrefied Wood Open
In this study, a torrefaction of Quercus serrata to manufacture a molded charcoal was performed, investigated material properties, fuel characteristics, and performed a quantitative analysis of hazardous gases which occur during a combusti…
View article: Evalution of Flame Retardant Performance for use as Interior of Domestic Red Pine
Evalution of Flame Retardant Performance for use as Interior of Domestic Red Pine Open
View article: Moisture Content Change of Korean Red Pine Logs During Air Drying: I. Effective Air Drying Days in Major Regions in Korea
Moisture Content Change of Korean Red Pine Logs During Air Drying: I. Effective Air Drying Days in Major Regions in Korea Open
Air drying depends on species, density, dimension of wood, the geographical location of the air drying yard, and the meteorological factors of air drying site. If there are four seasons with large difference in temperature and humidity lik…
View article: Hygroscopic Property of Heat Treated Yellow Poplar (Liriodendron tulipifera) Wood
Hygroscopic Property of Heat Treated Yellow Poplar (Liriodendron tulipifera) Wood Open
In modern societies, people spend most of their time indoors and the temperature and humidity controlled by electrical appliances have a considerable effect on their emotions and health. However, improper operation of the artificial facili…
View article: Finite Difference Evaluation of Moisture Profile in Boxed-heart Large-cross-section Square Timber of Pinus densiflora during High Temperature Drying
Finite Difference Evaluation of Moisture Profile in Boxed-heart Large-cross-section Square Timber of Pinus densiflora during High Temperature Drying Open
Predicting the amount and distribution of moisture content within wood allows calculating the various mechanical dynamics of the wood as well as determining the drying time. For boxed-heart wood with a large cross-section, since it is diff…
View article: Physical and Mechanical Properties of Korean Red Pine Wood from Different Growth Sites and Correlations between Them
Physical and Mechanical Properties of Korean Red Pine Wood from Different Growth Sites and Correlations between Them Open
충청북도 태안군 안면도와 경상북도 울진군 소광리 지역 소나무재의 물리적 특성과 역학적 특성을 측정하고, 상호상관관계를 분석하였다. 두 지역의 5영급과 9영급 소나무에서 생장코어를 채취하여 방사방향의 연륜폭과 만재율을 측정하였다. 두 지역 모두에서 연륜폭은 수에서 수피까지 감소하는 경향을 나타냈다. 전체 평균 연륜폭은 안면도 지역에서 5영급과 9영급이 각각 2.865 mm, 1.705 mm이고, 소광리 지역에서 5영급과 9영급…
View article: Prediction of Heat-treatment Time of Black Pine Log Damaged by Pine Wilt Disease
Prediction of Heat-treatment Time of Black Pine Log Damaged by Pine Wilt Disease Open
제주도 지역에서 소나무재선충병 피해를 받은 곰솔 원목의 이용확대를 위하여 열처리를 수행하였다. 열처리는 처리 원목의 중심부가 소나무재선충의 사멸온도인 $56^{\circ}C$를 30분간 유지하여야 한다. 곰솔 원목의 초기함수율과 말구지름은 각각 46% ~ 141%, 180 mm ~ 500 mm의 범위이고, 기본비중과 전건비중은 각각 0.47, 0.52이었다. $105^{\circ}C$ 조건에서 함수율과 말구지름에 따라 열처리…
View article: Seasonal Change of Cambium Activity of Pine Trees at Different Growth Sites
Seasonal Change of Cambium Activity of Pine Trees at Different Growth Sites Open
동일 수종이라도 생장지역과 영급에 따라 수형 또는 재질의 차이가 존재하고, 이러한 차이는 형성층 활동에 따른 목부세포의 양과 질이 다르기 때문에 생기게 된다. 본 연구는 소광리와 안면도에서 자라는 소나무를 대상으로 형성층 활동의 계절적 변화를 조사하여 소나무 목재의 재질 차이를 분석하기 위한 기초자료를 마련하기 위해 수행하였다. 형성층 활동 분석 결과, 소광리 5영급 임분은 목재세포 분열을 4월 중순에 시작하였으며, 안면도는…
View article: Moisture Content Prediction Model Development for Major Domestic Wood Species Using Near Infrared Spectroscopy
Moisture Content Prediction Model Development for Major Domestic Wood Species Using Near Infrared Spectroscopy Open
근적외선 반사율 분광분석법을 이용하여 리기다 소나무, 소나무, 잣나무, 백합나무의 섬유포화점 이하 함수율 예측모델을 개발하였다. 시편들을 다양한 평형함수율 상태로 유도한 후 1000 nm~2400 nm 파장영역의 반사율 스펙트럼을 획득하였다. 최적 함수율 예측 모델을 선정하기 위해 5가지의 수학적 전처리(moving average (smoothing point: 3), baseline, standard normal varia…