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Effect of Roasting Temperature on Production of Functional Wild-Rice Tea and Factors Influencing Purchase Intention Towards Wild-Rice Tea

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Rice science 2022年第3期29卷 197-200页

作者： Hyun Yi JUNG Kyoung Rim HAN Geon lee Joong kyun KIM Department of Biotechnology and Bioengineering Pukyong National UniversityNam-GuBusan 485137Republic of Korea Department of Research&Development Hyundae F&CBusan 604-842Republic of Korea Department of Environmental Engineering Dong-A UniversityBusan 49315Republic of Korea

The properties of raw wild rice were investigated to produce a functional tea,and the value of this tea was *** highest antioxidant activity[80.5%2,2-diphenyl-1-picrylhydrazyl(DPPH)radical scavenging activity]was achi... 详细信息

关键词： Influencing Tea Functional

Application of automated cone penetrometer for railway investigation using correlations with DCPI and deflection modulus

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Research in Cold and Arid Regions 2022年第4期14卷 235-238页

作者： Sang Yeob Kim Won-taek Hong Jong-Sub lee School of Civil Environmental and Architectural EngineeringKorea UniversitySeoul 02841Republic of Korea Department of Civil&Environmental Engineering Gachon UniversitySeongnam-si 13120Republic of Korea

Portable in-situ devices have been used for characterizing low accessible field,such as the railway *** this study,the automated cone penetrometer(ACP)was designed for the application on the railway *** is composed of the cone tip,driving rod,and hydraulic hammer *** hydraulic motor lifts and drops the 294.3 N hammer from a height of 200 mm such that the potential energy of 58.9 N m impacts the driving *** N-value(NACP)from the ACP test was compared with the dynamic cone penetration index(DCPI)from the dynamic cone penetrometer(DCP)*** test results show that the NACP and DCPI profiles show opposite trend owing to the inverse concept of the *** the correlation of DCPI and NACP,the limitation of DCPI reveals owing the minimum manually measured value of 1 mm/***,the evaluation of the deflection modulus(EFWD)using NACP is more efficient than that using *** on the result of this study,we suggest that ACP can be used for strength and stiffness evaluation of railway subgrade rapidly and reliably.

关键词： Automated cone penetrometer DCPI E_(FWD )N_(ACP) Railway subgrade

3D Face Reconstruction from a Single Image Using a Combined PCA-LPP Method

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Computers, Materials & Continua 2023年第3期74卷 6213-6227页

作者： Jee-Sic Hur Hyeong-Geun lee Shinjin Kang Yeo Chan Yoon Soo kyun Kim Department of Computer Engineering Jeju National UniversityJeju63243Korea School of Games Hongik UniversitySejong30016Korea Department of Artificial Intelligence Jeju National UniversityJeju63243Korea

In this paper, we proposed a combined PCA-LPP algorithm toimprove 3D face reconstruction performance. Principal component analysis(PCA) is commonly used to compress images and extract features. Onedisadvantage of PCA is local feature loss. To address this, various studies haveproposed combining a PCA-LPP-based algorithm with a locality preservingprojection (LPP). However, the existing PCA-LPP method is unsuitable for3D face reconstruction because it focuses on data classification and *** the existing PCA-LPP, the adjacency graph, which primarily shows the connectionrelationships between data, is composed of the e-or k-nearest neighbortechniques. By contrast, in this study, complex and detailed parts, such aswrinkles around the eyes and mouth, can be reconstructed by composing thetopology of the 3D face model as an adjacency graph and extracting localfeatures from the connection relationship between the 3D model *** verified the effectiveness of the proposed method. When theproposed method was applied to the 3D face reconstruction evaluation set,a performance improvement of 10% to 20% was observed compared with theexisting PCA-based method.

关键词： Principal component analysis locality preserving project 3DMM face reconstruction face modeling

Duo Property on the Monoid of Regular Elements

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Algebra Colloquium 2022年第2期29卷 203-216页

作者： Chan Yong Hong Hong Kee Kim Nam kyun Kim Tai Keun Kwak Yang lee Department of Mathematics Kyung Hee UniversitySeoul 02447Korea Department of Mathematics and RINS Gyeongsang National University Jinju 52828Korea School of Basic Sciences Hanbat National UniversityDaejeon 34158Korea Department of Mathematics Daejin UniversityPocheon 11159Korea Department of Mathematics Yanbian UniversityYanjiJilin 133002China Instituteof Basic Science Daejin UniversityPocheon 11159Korea

We study the right duo property on regular elements,and we say that rings with this property are right *** is first shown that the right duo property is preserved by right quotient rings when the given rings are right *** prove that thepolynomial ring over a ring R is right DR if and only if R is *** is also proved that for a prime number p,the group ring KG of a finite p-group G over a field K of characteristic p is right DR if and only if it is right duo,and that there exists a group ring KG that is neither DR nor duo when G is not a p-group.

关键词： right DR ring right duo ring quotient ring (skew)polynomial ring group ring

Colo-colonic intussusception with post-polypectomy electrocoagulation syndrome:A case report

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World Journal of Clinical Cases 2022年第25期10卷 8939-8944页

作者： Jae Young Moon Min-Ro lee Sung kyun Yim Gi Won Ha Department of Surgery Jeonbuk National University HospitalJeonju 561-180JeonbukSouth Korea Research Institute of Clinical Medicine of Jeonbuk National University-Biomedical Research Institute of Jeonbuk National University Hospital Jeonju 561-180JeonbukSouth Korea Department of Internal Medicine Biomedical Research InstituteJeonbuk National University Hospital and Medical SchoolJeonju 54907JeonbukSouth Korea

BACKGROUND Post-polypectomy electrocoagulation syndrome(PPES)can occur after colonoscopic polypectomy and is usually treated conservatively with a positive ***,there can be cases with complications *** SUMMARY A 58-year-old woman,who had no previous medical history,visited the Emergency Department of another hospital with symptoms of abdominal pain and fever,1 d after multiple colonoscopic *** abdominopelvic computed tomography(CT)scan demonstrated colo-colonic intussusception,and she was transferred to our hospital to consider an *** showed colocolonic intussusception with PPES and no evidence of *** physical examination showed localized mild tenderness on the right sided *** patient fasted and was admitted for treatment with intravenous antibiotics(piperacillin/tazobactam 4.5 g each 8 h,ornidazole 500 mg each 12 h).After admission,the symptoms got better and a follow-up CT scan demonstrated resolution of the PPES and *** patient was discharged on hospital day *** Colo-colic intussusception can occur with PPES,and it can be properly treated conservatively.

关键词： Intussusception Endoscopy Colonoscopy Colonic polyps Intestinal polyps Case report

Changes in the distribution of South Korean forest vegetation simulated using thermal gradient indices

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Science China(Life Sciences) 2010年第7期53卷 784-797页

作者： CHOI Sungho lee Woo-kyun SON Yowhan YOO Seongjin LIM Jong-Hwan Department of Environmental Science and Ecological Engineering Korea University Korea Forest Research Institute

To predict changes in South Korean vegetation distribution,the Warmth Index(WI) and the Minimum Temperature of the Coldest Month Index(MTCI) were *** climate data of the past 30 years,from 1971 to 2000,was obtained from the Korea Meteorological *** Fifth-Generation National Center for Atmospheric Research(NCAR) /Penn State Mesoscale Model(MM5) was used as a source for future climatic data under the A1B scenario from the Special Report on Emission Scenario(SRES) of the Intergovernmental Panel on Climate Change(IPCC).To simulate future vegetation distribution due to climate change,the optimal habitat ranges of Korean tree species were delimited by the thermal gradient indices,such as WI and *** categorize the Thermal Analogy Groups(TAGs) for the tree species,the WI and MTCI were orthogonally plotted on a two-dimensional grid *** TAGs were then designated by the analogue composition of tree species belonging to the optimal WI and MTCI *** a result of the clustering process,22 TAGs were generated to explain the forest vegetation distribution in *** primary change in distribution for these TAGs will likely be in the shrinkage of areas for the TAGs related to Pinus densiflora and ***,and in the expansion of the other TAG areas,mainly occupied by evergreen broad-leaved trees,such as Camellia japonica,Cyclobalanopsis glauca,and Schima *** the TAGs to explain the effects of climate change on vegetation distribution on a more regional scale resulted in greater detail than previously used global or continental scale vegetation models.

关键词： climate change forest distribution warmth index minimum temperature thermal analogy group

Successful recanalization of chronic total occlusion of the superior mesenteric artery by transradial approach

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2010年第8期11卷 627-630页

作者： Woo taek KIM Sung Gyun AHN Jun-Won lee Joong kyung SUNG Seung Hwan lee Junghan YOON Division of Cardiology Wonju College of MedicineYonsei University

It is a challenge to confirm chronic mesenteric ischemia(CMI) as a cause of gastrointestinal(GI) symptoms such as postprandial epigastric bloating,anorexia,and debilitating weight *** intervention for CMI has been gaining popularity because of the high morbidity associated with surgical ***,in EVI for superior mesenteric artery(SMA) occlusion,the transfemoral approach is limited by difficulty in coaxial alignment of the guiding catheter,which leads to insufficient back-up ***,we report on a 58-year-old male patient with chronic total occlusion of the SMA,which was successfully revascularized by endovascular intervention via the left radial *** endovascular therapy may be another treatment option for the treatment of CMI.

关键词： Transluminal angioplasty Radial artery Superior mesenteric artery Chronic mesenteric ischemia

Estimation of effective plant area index for South Korean forests using LiDAR system

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Science China(Life Sciences) 2010年第7期53卷 898-908页

作者： KWAK Doo-Ahn lee Woo-kyun KAFATOS Menas SON Yowhan CHO Hyun-Kook lee Seung-Ho Department of Environmental Science and Ecological Engineering Korea University Center of Excellence in Earth Observing Schmid College of ScienceChapman University Division of Forest Resources Information Korea Forest Research Institute

Light Detection and Ranging(LiDAR) systems can be used to estimate both vertical and horizontal forest *** components,the leaves of trees and the understory can be described with high precision,using geo-registered *** on this concept,the Effective Plant Area Indices(PAIe) for areas of Korean Pine(Pinus koraiensis),Japanese Larch(Larix leptolepis) and Oak(Quercus spp.) were estimated by calculating the ratio of intercepted and incident LIDAR laser rays for the canopies of the three forest ***,the canopy gap fraction(GLiDAR) was generated by extracting the LiDAR data reflected from the canopy surface,or inner canopy area,using k-means *** LiDAR-derived PAIe was then estimated by using GLIDAR with the Beer-Lambert law.A comparison of the LiDAR-derived and field-derived PAIe revealed the coefficients of determination for Korean Pine,Japanese Larch and Oak to be 0.82,0.64 and 0.59,*** differences between field-based and LIDAR-based PAIe for the different forest types were attributed to the amount of leaves and branches in the forest *** absence of leaves,in the case of both Larch and Oak,meant that the LiDAR pulses were only reflected from *** probability that the LiDAR pulses are reflected from bare branches is low as compared to the reflection from branches with a high leaf *** is because the size of the branch is smaller than the resolution across and along the 1 meter LIDAR laser ***,a better predictive accuracy would be expected for the model if the study would be repeated in late spring when the shoots and leaves of the deciduous trees begin to appear.

关键词： leaf area index plant area index LiDAR k-means clustering gap fraction beer-lambert law

Application of a nondestructive method to evaluate the active layer in a cold region

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Research in Cold and Arid Regions 2017年第3期9卷 213-220页

作者： Won-taek Hong Jong-Sub lee School of Civil Environmental and Architectural Engineering Korea University

To provide a safe transportation system in an extremely cold region,evaluation needs to be conducted of the thickness and the volumetric water content of the active layer,as they significantly affect frost *** objective of this study was to evaluate the dielectric constant(κ)of the active layer using ground-penetrating radar(GPR)and a dynamic cone penetrometer(DCP);this evaluation was then used to estimate the thickness and the volumetric water content of the active layer.A field located in midwest Alaska was selected as the study site.A GPR survey and two DCP tests were conducted on the surface of the ground,and the ground temperature was *** the GPR survey,travel times of the electromagnetic wave in the active layer were *** addition,the thickness of the active layer was determined by using the dynamic cone penetration index(DCPI)and ground *** using the travel time and travel distance of the electromagnetic wave in the active layer,dielectric constants were calculated as 26.3 and 26.4 for two DCP *** the mean dielectric constant,the volumetric water content was estimated to be 40%~43%,and the thickness of the active layer was evaluated along the GPR survey *** spatial-scaled GPR image showed that the thickness of the active layer varied from 520 mm to 700 mm due to the presence of a puddle,which accelerated the heat *** results show that evaluation of the dielectric constant using the GPR survey and the DCP test can be effectively used to estimate the thickness and the volumetric water content of the active layer.

关键词： active layer dielectric constant dynamic cone penetrometer (DCP) extremely cold region ground-penetrating radar (GPR)