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Performance of Weibull function as a diameter distribution model for Pinus thunbergii stands in the eastern coast of South Korea

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Journal of Mountain Science 2016年第5期13卷 822-830页

作者： ABINO Azyleah Canizares KIM Sung Yong LUMBRES Roscinto Ian Canicosa JANG Mi Na YOUN Ho doong PARK Ki Hyung lee young jin Department of Forest Resources Kongju National UniversityYesanChungnam 340-802South Korea Laguna Lake Development Authority DilimanQuezon City 1101Philippines College of Forestry Benguet State UniversityLa TrinidadBenguet2601Philippines Division of Forest Disaster Management Korea Forest Research InstituteSeou1130-712South Korea

This study was carried out to determine the performance of percentile-based Weibull diameter distribution model for Pinus thunbergii stands thriving along the eastern coast of South Korea. The parameter recovery technique was used to estimate the three parameters of the Weibull model. The analysis demonstrated satisfactory results based on the following test statistics for the principal percentile models： fit index （FI） range from 0.501（minimum diameter） to 0.932 （50th diameter percentiles） and root mean square error （RMSE） range from 0.112 （quadratic mean diameter） to 3.572 （minimum diameter）. The developed model was further evaluated by determining the mean bias （E） in trees per ha （TPH） for each diameter class, and the results showed highest over-prediction in the 20 cm, and under-prediction in the x6 cm and 24 cm diameter classes. The goodness of fit tested by Kolmogorov- Smirnov （KS） test showed no significant differences （P〉0.05） between the observed and predicted diameter distributions for almost all plots. Using site index and aboveground biomass （AGB） models developed for P. thunbergii in South Korea, a model to predict the AGB per ha for each diameter class and subsequently the total AGB of the stand was created. An application guide was also created, which will serve as a decision-support tool for forest managers in quantifying the future total AGB in P. thunbergii stands located in the eastern coast of South Korea and, subsequently, the quantification of potential carbon stocks aside from being a vital input in designing efficient management and protection strategies for these stands.

关键词： Aboveground biomass Weibull distribution Parameter recovery technique Site index Pinus thunbergii Diameter distribution

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Comparative Analysis of Four Stem Taper Models for Quercus glauca in Mount Halla,Jeju Island,South Korea

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Journal of Mountain Science 2014年第2期11卷 442-448页

作者： LUMBRES Roscinto Ian Canicosa lee young jin CHOI Hyung Soon KIM Sung Yong JANG Mi Na ABINO Azyleah Caizares SEO Yeon Ok KIM Chan Soo PARK Jung Hwan Department of Forest Resources Kongju National University College of Forestry- Benguet State University La Trinidad Benguet 2601 Philippines Warm Temperate and Subtropical Forest Research Center Korea Forest Research Institute

This study was conducted to fit the diameter-height data of Quercusglaucain Jeju Island, South Korea to the four commonly used stem taper equations andto evaluate the performance of the four stem taper models using four statistical criteria： Fit index （FI）, root mean square error （RMSE）, bias （）,and absolute mean difference （AMD）. Results showed that the Kozak02stem taper equation provided the best FI（0.9847）, RMSE（1.5745）,（-0.0030 cm） and AMD （1.0990 cm） whileMax and Burkhart model had the poorest performance among the four stem taper models based on the four evaluation statistics （FI ： 0.9793,RMSE ： 1.8272, ： 0.3040 cm and AMD ： 1.3060 cm）. These stem taper equations can serve as a useful tool for forest managers in estimating the diameter outside bark at any given height, merchantable stem volumes and total stem volumesof the standing trees of Quercusglaucain theGotjawal forests located in Mount Halla, Jeju Island, South Korea.

关键词： MountHalla Merchantable stem volume Diameter outside bark Kozak model Model evaluation

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A Rapid Adaptation Approach for Dynamic Air‑Writing Recognition Using Wearable Wristbands with Self‑Supervised Contrastive Learning

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Nano-Micro Letters 2025年第2期17卷 417-431页

作者： Yunjian Guo Kunpeng Li Wei Yue Nam‑young Kim Yang Li Guozhen Shen Jong‑Chul lee Department of Electronic Convergence Engineering Kwangwoon UniversitySeoul 01897South Korea Radio Frequency Integrated Circuit(RFIC)Bio Centre Kwangwoon UniversitySeoul 01897South Korea Department of Electronic Engineering Kwangwoon UniversitySeoul 01897South Korea School of Microelectronics Shandong UniversityJinan 250101People’s Republic of China State Key Laboratory of Integrated Chips and Systems Fudan UniversityShanghai 200433People’s Republic of China School of Integrated Circuits and Electronics Beijing Institute of TechnologyBeijing 100081People’s Republic of China

Wearable wristband systems leverage deep learning to revolutionize hand gesture recognition in daily *** existing approaches that often focus on static gestures and require extensive labeled data,the proposed wearable wristband with selfsupervised contrastive learning excels at dynamic motion tracking and adapts rapidly across multiple *** features a four-channel sensing array composed of an ionic hydrogel with hierarchical microcone structures and ultrathin flexible electrodes,resulting in high-sensitivity capacitance *** wireless transmission from a Wi-Fi module,the proposed algorithm learns latent features from the unlabeled signals of random wrist ***,only few-shot labeled data are sufficient for fine-tuning the model,enabling rapid adaptation to various *** system achieves a high accuracy of 94.9%in different scenarios,including the prediction of eight-direction commands,and air-writing of all numbers and *** proposed method facilitates smooth transitions between multiple tasks without the need for modifying the structure or undergoing extensive task-specific *** utility has been further extended to enhance human–machine interaction over digital platforms,such as game controls,calculators,and three-language login systems,offering users a natural and intuitive way of communication.

关键词： Wearable wristband Self-supervised contrastive learning Dynamic gesture Air-writing Human-machine interaction

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Correction:High‑Performance Stainless‑Steel‑Fiber‑Reinforced Thick Ultra‑flexible Electrode Applicable to 3D Free‑Form Batteries

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Advanced Fiber Materials 2024年第6期6卷 1998-1998页

作者： Hatsey, Niguss Haregot Kim, Areum Ha, Hyunho lee, jin young Oh, Minsub Kim, Kwang-Seop So, Hye-Mi Hyun, Seungmin Department of Nano-devices and Displays Korea Institute of Machinery and Materials (KIMM) Daejeon Republic of Korea Department of Nano-Mechatronics University of Science and Technology (UST) Daejeon Republic of Korea

In this article, citations to References 77–80 were missing in the text and have been added in Sect. 3.3 Discussion of the Electrochemical Results to the sentence "DRT is a useful method for analyzing the reaction kinetics and the electrochemical processes, which is often difficult to achieve with conventional EIS [77–80]". Furthermore, in the Supplementary Files the video of S1 was linked twice as S1 and S2. Supplementary video S2 was linked as S3 and the original video S3 was not linked at all. This has been corrected so that all three videos are now available. The original article has been corrected. © Donghua University, Shanghai, China 2024.

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丹参提取物对皮肤表皮分化和水合促进作用的研究

丹参提取物对皮肤表皮分化和水合促进作用的研究

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第九届中国化妆品学术研讨会

作者： lee jin young KIM Han Byul lee Sung Hoon lee Ok Chan BAE Ji Hyun lee Hae Kwang Amorepacific Corporation R&D Center

表皮分化在皮肤老化和水合过程中可能发挥关键作用。特别是丝聚蛋白的表达直接参与了皮肤的屏障功能和表皮天然保湿因子(NMFS)的合成。丹参(Salvia miltiorrhiza)是一味常见中药,在中国已经有数百年的使用历史,但其对皮肤的影响尚未得... 详细信息

表皮分化在皮肤老化和水合过程中可能发挥关键作用。特别是丝聚蛋白的表达直接参与了皮肤的屏障功能和表皮天然保湿因子(NMFS)的合成。丹参(Salvia miltiorrhiza)是一味常见中药,在中国已经有数百年的使用历史,但其对皮肤的影响尚未得到评估。在本研究中,我们发现丹参提取物(ESM)可以刺激正常人角质细胞和Amo Re Skin(本实验室建立的重建人类皮肤模型)中丝聚蛋白的表达。实时定量PCR试验证实了这一结论,丹参提取物(ESM)干预能够上调角质细胞中丝聚蛋白m RNA的表达。免疫染色试验证实丹参提取物(ESM)干预后Amo Re Skin中丝聚蛋白的表达增加。此外,实时定量PCR试验也证实角质细胞中表皮分化的标志物角蛋白1 m RNA的量增多。这些结果表明,丹参提取物(ESM)可以增强表皮分化和水合的活性,可能会增强表皮对抗皮肤老化的功能。

关键词：丹参丝聚合蛋白表皮分化

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Pan-TRK positive uterine sarcoma in immunohistochemistry without neurotrophic tyrosine receptor kinase gene fusions:A case report

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World Journal of Clinical Cases 2025年第2期13卷 39-49页

作者： Seungmee lee Yu-Ra Jeon Changmin Shin Sun-young Kwon Sojin Shin Department of Obstetrics and Gynecology Keimyung University School of MedicineDaegu 42601South Korea Department of Pathology and Institute for Cancer Research Keimyung University School of MedicineDaegu 42601South Korea

BACKGROUND The classification of uterine sarcomas is based on distinctive morphological and immunophenotypic characteristics,increasingly supported by molecular genetic *** on neurotrophic tyrosine receptor kinase(NTRK)gene fusionpositive uterine sarcoma,potentially aggressive and morphologically similar to fibrosarcoma,are limited due to its recent ***-TRK immunohistochemistry(IHC)analysis serves as an effective screening tool with high sensitivity and specificity for NTRK-fusion *** SUMMARY We report a case of a malignant mesenchymal tumor originating from the uterine cervix,which was pan-TRK IHC-positive but lacked NTRK gene fusions,accompanied by a brief literature review.A 55-year-old woman presented to the emergency department with abdominal pain and distension,exhibiting significant ascites and multiple solid pelvic *** examination revealed a tumor encompassing the uterine cervix,extending to the vagina and uterine corpus.A punch biopsy of the cervix indicated NTRK sarcoma with positive immunochemical pan-TRK ***,subsequent next generation sequencing revealed no NTRK gene fusion,leading to a diagnosis of poorly differentiated,advanced-stage *** The clinical significance of NTRK gene fusion lies in potential treatment with TRK inhibitors for positive *** such rare tumors is crucial due to the potential applicability of tropomyosin receptor kinase inhibitor treatment.

关键词： Uterine sarcoma Cervical sarcoma Neurotrophic tyrosine receptor kinase gene fusion Next generation sequencing Case report

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Exploring perspectives in assessing the quality of governance of the Reducing Emissions from Deforestation and Forest Degradation (REDD+) pilot project in Cambodia: Use of Q Methodology

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Journal of Mountain Science 2020年第1期17卷 95-116页

作者： Sareth NHEM young-jin lee Graduate School National University of Ma nagementPhnom Penh 1220Cambodia Techo Sen School of Government&/nrernadona/Relations The University of CambodiaPhnom Penh 1220Cambodia College of Industrial Science Graduate School of Natural SciencesDepartment of Forest ResourcesKonju National UniversityYesan-gun 32439South Korea

Public and policy makers alike are concerned about national and global deforestation and forest degradation. These issues pose a significant threat to social, economic and environmental *** to prevent forest loss and increased attention to pilot REDD+ projects in community forestry sites would both deliver rural livelihood benefits and help to reduce adverse climate ***, there has been no significant exploration of the viewpoints of local experts to determine the monitoring and action needed to support communitybased forestry and improve the governance of REDD+pilot projects in Cambodia. Therefore, this study aimed to assess the perceptions of local stakeholders towards the quality of governance of the first community forest REDD+ pilot project in Cambodia,employing Q-methodology. We adapted 11 indicators of the hierarchical framework of assessment of governance quality to design 40 Q-statements related to REDD+ governance or achievements. The 52 P-set ranked these Q-statements with respect to the community-based REDD+ pilot project. Our study revealed that local stakeholders held four distinct, and partially opposite, views, that:(1) the REDD+ project is successful because it is inclusiveness and capable of causing behavioral change;(2) REDD+ pilot projects should be led by government, not external or locally;and needs more resources;(3) the REDD+ pilot project has raised unrealistic expectations, would likely be a source of corruption and will probably not be successful for local people or halting deforestation;and(4) the REDD+ pilot project is inclusive but not very transparent and probably ineffective at protecting forest. Through these four varied perspectives from local people involved in the project,we can see that there remain serious challenges to the future of pilot community forestry REDD+ projects,including the complex interaction between the multinational actors and the local socio-ecological *** move forwards, this study

关键词： REDD+ Governance quality Indicator Q-Methodology Deforestation Cambodia

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Development of a novel electrolytic process for producing high-purity magnesium metal from magnesium oxide using a liquid tin cathode

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Journal of Magnesium and Alloys 2021年第5期9卷 1661-1672页

作者： Tae-Hyuk lee Toru H.Okabe jin-young lee young Min Kim Jungshin Kang Korea Institute of Geoscience and Mineral Resources 124 Gwahak-ro Yuseong-guDaejeon 34132Republic of Korea Institute of Industrial Science The University of Tokyo4-6-1 KomabaMeguro-kuTokyo 153-8505Japan University of Science and Technology 217 Gajeong-ro Yuseong-guDaejeon 34113Republic of Korea Korea Institute of Materials Science 797 Changwondae-roSeongsan-guChangwonGyeongnam51508Republic of Korea

The current electrolytic processes for magnesium(Mg)metal have several disadvantages,such as anhydrous magnesium chloride(MgCl_(2))preparation and generation of harmful chlorine(Cl_(2))*** overcome these drawbacks,a novel Mg production process to produce high-purity Mg metal directly from magnesium oxide(MgO)was investigated in this *** electrolysis of MgO was conducted using a liquid tin(Sn)cathode and a carbon(C)anode in the eutectic composition of a magnesium fluoride(MgF_(2))-lithium fluoride(LiF)molten salt under an applied voltage of 2.5 V at 1053-1113 *** certain conditions,the Mg-Sn alloys with Mg_(2)Sn and Mg(Sn)phases were obtained with a current efficiency of 86.6%at 1053 *** produce high-purity Mg metal from the Mg-Sn alloy,vacuum distillation was conducted at 1200-1300 K for a duration of 5-10 *** the vacuum distillation,the concentration of Mg in the Mg-Sn alloy feed decreased from 34.1 to 0.17 mass%,and Mg metal with a purity of 99.999%was obtained at 1200 ***,the electrolytic process developed here is feasible for the production of high-purity Mg metal from MgO using an efficient method.

关键词： Magnesium Magnesium oxide Electrolytic process Liquid tin cathode Vacuum distillation

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Hopf Hypersurfaces in Complex Two-Plane Grassmannians with Generalized Tanaka–Webster D-Parallel Shape Operator

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Acta Mathematica Sinica,English Series 2017年第1期33卷 61-70页

作者： Hyunjin lee Eunmi PAK young jin SUH Research Institute of Real&Complex Manifolds Kyungpook National UniversityDaegu 41566Republic of Korea Department of Mathematics Kyungpook National UniversityDaegu 41566Republic of Korea

In this paper, we consider a new notion of generalized Tanaka Webster З-parallel shape operator for a real hypersurface in a complex two-plane Grassrnannian and prove a non-existence theorem of a real hypersurface.

关键词： Complex two-plane Grassmannians real hypersurfaces generalized Tanaka-Webster con-nection parallel shape operator З-parallel shape operator

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Policy implications for community-managed forestry in Cambodia from experts＇ assessments and case studies of community forestry practice

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Journal of Mountain Science 2018年第11期15卷 2531-2551页

作者： Sareth NHEM young jin lee Sopheap PHIN Department of Forest Resources Kongju National Uniuersity 54 Daehak-ro Yesan-eup Yesan-gun Chungnam 32439South Korea Department of Natural Resource Management and Development Faculty of Development Studies Royal University of Phnom Penh Toul Kork 1215o Phnom Penh Cambodia French Cooperation in Economics and Management Royal University of Law and Economics Tonle BasacChamkamon 12300 Phnom Penh Cambodia Prek Leap National College of Agriculture National Road No.6 Chroy Chang Va 12110 Phnom Penh Cambodia

Over the last 40 years, it has been shown at the global level that sustainable forestry can be achieved through comprehensive forest management,with the decentralized institutional arrangements of community-managed forestry coordinated by effective policy implementation. However, there is still a shortage of evidence regarding whether communitybased forestry is well characterized by forest policies,assessing what action is most needed and how best to address the challenges faced by community-based forestry in halting deforestation and promoting rural livelihoods. The study analyzed experts' assessments of the characteristics and success of communitymanaged forestry in Cambodia and explored three case studies of community-managed forestry practice to identify priorities for addressing forest policy implementation inadequacies in halting deforestation and promoting rural livelihoods. There were two methods of data collection. Firstly, this study used a survey of 27 experts to analyze perceptions about how far forest policy supported community-managed forestry effectively, the major challenges faced by the national community-managed forestry program, and the community-managed forestry contribution to halting deforestation and reducing rural ***, data was collected by content analysis of three case studies to explore the knowledge and practical experience of local experts about community-managed forestry practice at local *** study employed Kendall's Coefficient of Concordance to analyze the level of concordance of experts on related forest policies(n=15) considering community-managed forestry, the challenges faced by the national community-managed forestry program,and the actions required to enable communitymanaged forestry to support communities. Analysis revealed that experts were in moderate agreement,denoted by Kendall's W=0.152, on how well forest policies articulate and implement the characteristics of community-managed forestry. Ranking of the

关键词： Kendall's W Content analysis method Forest policy Deforestation Sustainable forestry Cambodia

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