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Microsystems & Nanoengineering 2023年第2期9卷 367-379页

作者： Geon Kook Yehhyun Jo Chaerin Oh Xiaojia Liang Jaewon Kim sang-mok lee Subeen Kim Jung-Woo Choi Hyunjoo Jenny lee School of Electrical Engineering Korea Advanced Institute of Science and Technology291 Daehak-roYuseong-guDaejeon 34141South Korea KAIST Institute for NanoCentury(KINC) 291 Daehak-roYuseong-guDaejeon 34141Republic of Korea

Transcranial focused ultrasound stimulation is a promising therapeutic modality for human brain disorders because of its noninvasiveness,long penetration depth,and versatile spatial control capability through beamforming and beam ***,the skull presents a major hurdle for successful applications of ultrasound ***,skull-induced focal aberration limits the capability for accurate and versatile targeting of brain *** addition,there lacks a fully functional preclinical neuromodulation system suitable to conduct behavioral ***,we report a miniature ultrasound system for neuromodulation applications that is capable of highly accurate multiregion targeting based on acoustic *** work includes the design and implementation of an acoustic lens for targeting brain regions with compensation for skull aberration through time-reversal recording and a phase conjugation ***,we utilize MEMS and 3D-printing technology to implement a 0.75-g lightweight neuromodulation system and present in vivo characterization of the packaged system in freely moving *** preclinical system is capable of accurately targeting the desired individual or multitude of brain regions,which will enable versatile and explorative behavior studies using ultrasound neuromodulation to facilitate widespread clinical adoption.

关键词： versatile utilize recording

Undifferentiated pleomorphic sarcoma of the liver presenting as a unilocular cyst

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Hepatobiliary & Pancreatic Diseases International 2009年第5期8卷 541-543页

作者： Hyun-Soo Kim Gou Young Kim Sung-Jig Lim sang mok lee Youn Wha Kim Departments of Pathology School of MedicineKyung Hee University1 Hoegi-dongDongdaemun-gu130-702 SeoulSouth Korea Departments of Surgery School of MedicineKyung Hee University1 Hoegi-dongDongdaemun-gu130-702 SeoulSouth Korea

BACKGROUND:A malignant fibrous histiocytoma,recently referred to as an undifferentiated pleomorphic sarcoma (UPS),is very rare in the liver,and only 34 cases of primary hepatic malignant fibrous histiocytoma have been reported in the English literature. METHODS:We report a rare case of a hepatic UPS presenting as a unilocular cystic lesion with respect to histopathologic features,the newly revised diagnostic criteria,and the differential diagnosis. RESULTS:A 60-year-old man presented for evaluation of epigastric pain of 7 months *** computed tomography revealed a hypodense,unilocular cystic mass in the right lobe of the liver,measuring 14.0×11.1 cm.A right lobectomy was ***,the cut surface showed a single,well-circumscribed unilocular cystic tumor mass containing dark red-brown necrotic debris and blood clots, which occupied most of the ***,the tumor consisted of haphazardly arranged mononuclear pleomorphic tumor cells,admixed with abundant osteoclast- like multinucleated giant ***,the tumor cells expressed vimentin *** histopathologic and immunohistochemical findings were compatible with a *** patient is alive and well 41 months after surgery without recurrence. CONCLUSIONS:Clinically,most of the hepatic UPSs are solid *** two cases have presented as multilocular cystic masses.A primary hepatic UPS presenting as a unilocular cyst has never been reported.A UPS should be included in the differential diagnosis of unilocular cystic lesions in the liver.

关键词： undifferentiated pleomorphic sarcoma malignant fibrous histiocytoma liver unilocular cyst

第74届世界铸造大会将推迟到2022年10月16-20日举办

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铸造设备与工艺 2020年第2期 14-14页

作者： Hyun-IK Cho sang-mok lee 韩国铸造学会第74届WFC大会

世界铸造大会(WFC)由世界铸造组织(简称WFO)主办,每两年召开一届。原定于2020年10月18日-22日在韩国釜山举办的“第74届世界铸造大会”受新冠疫情影响,将推迟到2022年10月16-20日举办。会议推迟声明:我们代表第74届世界铸造大会组委会,... 详细信息

世界铸造大会(WFC)由世界铸造组织(简称WFO)主办,每两年召开一届。原定于2020年10月18日-22日在韩国釜山举办的“第74届世界铸造大会”受新冠疫情影响,将推迟到2022年10月16-20日举办。会议推迟声明:我们代表第74届世界铸造大会组委会,在世界铸造组织(WFO)和韩国铸造学会的大力支持下,遗憾的宣布,由于目前COVID-19的大流行,第74届世界铸造大会(WFC)将推迟至2022年10月16-20日在相同地点,韩国釜山的BEXCO中心举办。这次延期是基于当前困难时期旅行的不确定性、今年或明年旅行的负面感觉(包括注册),以及考虑到2021年WFO的许多预先确定的日程和活动,谨慎做出的决定。有关组织/解散委员会成员,全体发言人,受邀发言人,注册人员的详细信息,以及与提交论文,期刊,参展商,赞助商和媒体相关的政策等,在详细检查每个项目后,我们将在最早的时间表上发布。对于因第74届WFC的推迟而给您带来的任何不便,我们深表歉意。在此困难时刻,为了您和家人的安全,请接受我们美好的祝愿。非常感谢您。

关键词：韩国釜山铸造学会铸造组织注册人员参展商时间表 WFC 不确定性

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第74届世界铸造大会推迟至2022年举办

铸造工程 2020年第6期44卷 57-57页

作者： Hyun-IK Cho sang-mok lee 韩国铸造学会

受新冠疫情影响,原定于2020年10月18~22日在韩国釜山举办的“第74届世界铸造大会”将推迟至2022年10月16~20日举办。世界铸造大会(WFC)由世界铸造组织(WFO)主办,每两年召开一届。会议推迟声明:我们代表第74届世界铸造大会组委会,在世界... 详细信息

受新冠疫情影响,原定于2020年10月18~22日在韩国釜山举办的“第74届世界铸造大会”将推迟至2022年10月16~20日举办。世界铸造大会(WFC)由世界铸造组织(WFO)主办,每两年召开一届。会议推迟声明:我们代表第74届世界铸造大会组委会,在世界铸造组织(WFO)和韩国铸造学会的大力支持下,遗憾地宣布,由于目前COVID-19的大流行,第74届世界铸造大会(WFC)将推迟至2022年10月16~20日在韩国釜山的BEXCO中心举办。

关键词：铸造组织铸造学会韩国釜山 WFC 世界铸造大会推迟

Application of ferrate(VI) in the treatment of industrial wastes containing metal-complexed cyanides : A green treatment

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Journal of Environmental Sciences 2009年第10期21卷 1347-1352页

作者： SEUNG-mok lee DIWAKAR Tiwari Department of Environmental Engineering Kwandong University Department of Chemistry School of Physical Sciences Mizoram University

Ferrate（VI） was employed for the oxidation of cyanide （CN） and simultaneous removal of copper or nickel in the mixed/complexed systems of CN-Cu, CN-Ni, or CN-Cu-Ni. The degradation of CN （1.00 mmol/L） and removal of Cu （0.095 mmol/L） were investigated as a function of Fe（Ⅵ） doses from 0.3-2.00 mmol/L at pH 10.0. It was found that Fe（Ⅵ） could readily oxidize CN and the reduction of Fe（Ⅵ） into Fe（Ⅲ） might serve efficiently for the removal of free copper ions. The increase in Fe（Ⅵ） dose apparently favoured the CN oxidation as well as Cu removal. Moreover, the pH dependence study （pH 10.0-13.0） revealed that the oxidation of CN was almost unaffected in the studied pH range （10.0-13.0）, however, the maximum removal efficiency of Cu was obtained at pH 13.0. Similarly, treatment was carded out for CN-Ni system having the initial Ni concentration of 0.170 mmol/L and CN concentration of 1.00 mmol with Fe（Ⅵ） dose 2.00 mmol at various pH values （10.0-12.0）. Results showed a partial oxidation of CN and partial removal of Ni. It can be observed that Fe（Ⅵ） can partially degrade the CN-Ni complex in this pH range. Further, Fe（Ⅵ） was applied for the treatment of simulated industrial waste/effluent waters treatment containing CN, Cu, and Ni.

关键词： cyanide metal-complexed cyanide oxidation copper nickel ferrate(Ⅵ)

Heuristic solution using decision tree model for enhanced XML schema matching of bridge structural calculation documents

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Frontiers of Structural and Civil Engineering 2020年第6期14卷 1403-1417页

作者： sang IPARK sang-Ho lee Department of Civil Environmental and Architectural EngineeringUniversity of Colorado at BoulderBoulderco 80309USA Department of"Civil and Environmental Engineering Yonsei UniversitySeoul 03722Korea

Research on the quality of data in a structural calculation document(SCD)is lacking,although the SCD ofa bridge is used as an essential reference during the entire lifecycle of the *** Schema matching enables qualitative improvement of the stored *** study aimed to enhance the applicability of XML Schema matching,which improves the speed and quality of information stored in bridge ***,the authors proposed a method of reducing the computing time for the schema matching of bridge *** computing speed of schema matching was increased by 13 to 1800 times by reducing the checking process of the ***,the authors developed a heuristic solution for selecting the optimal weight factors used in the matching process to maintain a high accuracy by introducing a decision *** decision tree model was built using the content elements stored in the SCD,design companies,bridge types,and weight factors as input variables,and the matching accuracy as the target *** inverse-calculation method was applied to extract the weight factors from the decision tree model for high-accuracy schema matching results.

关键词： structural calculation document bridge structure XML Schema matching weight factor data mining decision tree model

Dielectric Barrier Discharge Plasma-Induced Photocatalysis and Ozonation for the Treatment of Wastewater

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Plasma Science and Technology 2008年第1期10卷 100-105页

作者： mok YoungSun JO Jin-Oh lee Heon-Ju Department of Chemical Engineering Cheju National University Jeju 690-756 South Korea Department of Energy Engineering Cheju National University Jeju 690-756 South Korea

The physicochemical processes of dielectric barrier discharge （DBD） such as insitu formation of chemically active species and emission of ultraviolet （UV）/visible light were utilized for the treatment of a simulated wastewater formed with Acid Red 4 as the model organic contaminant. The chemically active species （mostly ozone） produced in the DBD reactor were well distributed in the wastewater using a porous gas diffuser, thereby increasing the gas-liquid contact area. For the purpose of making the best use of the light emission, a titanium oxide-based photocatalyst was incorporated in the wastewater treating system. The experimental parameters chosen were the voltage applied to the DBD reactor, the initial pH of the wastewater, and the concentration of hydrogen peroxide added to the wastewater. The results have clearly shown that the present system capable of degrading organic contaminants in two ways （photocatalysis and ozonation） may be a promising wastewater treatment technology.

关键词： dielectric barrier discharge ozone ultraviolet light photocatalyst wastewater

Correlation of microstructure with tensile behavior and properties of API X70 pipeline steels subjected to strain aging

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Journal of Iron and Steel Research International 2020年第3期27卷 319-324页

作者： sang-in lee Byoungchul Hwang Department of Materials Science and Engineering Seoul National University of Science and TechnologySeoul 01811Republic of Korea

Variations in tensile behavior and properties after pre-strain and thermal aging were differently affected by strain aging phenomenon dependent on *** increasing polygonal ferrite fraction,decrement in uniform elongation is increased,and the increment in yield-to-tensile ratio is slightly decreased after pre-strain and thermal ***,it can be concluded that the polygonal ferrite has contradictory effects on strain aging resistance although the polygonal ferrite still contributes to improvement of uniform elongation after strain aging.

关键词： Steel Microstructure Strain aging Deformability Pipeline

A Routing Protocol for Urban Vehicular Multi-hop Data Delivery

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Chinese Journal of Electronics 2016年第2期25卷 348-356页

作者： CHANG sang-woo lee sang-sun Department of Electronic Engineering Hanyang University

Vehicular ad-hoc network(VANET) has distinctive environments such as highly dynamic topology, frequently disconnected network, hard delay constraints for safety-related application, and various communications environments based on highway or urban traffic scenarios. Therefore, development of a suitable routing protocol that considers these characteristics of VANET should be needed. In this paper we propose the improved distance-based VANET routing protocol in urban traffic environments. We apply approaches to multi-hop broadcast scheme for reliable packet dissemination in the intersection and stable route decision scheme based on the adaptive waiting time. The performance is evaluated under simulation which is implemented with the Manhattan urban traffic model. The results show the improved performance as compared with other protocols.

关键词： Distance-based routing protocol Vehicle-to-vehicle communication Waiting time Urban traffic environments Vehicular ad-hoc network(VANET)

PGLYRP1 protein as a novel mediator of cellular dialogue in neuroinflammation

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Neural Regeneration Research 2025年第7期20卷 1993-1994页

作者： Anup Bhusal Won-Ha lee Kyoungho Suk Department of Pharmacology School of MedicineKyungpook National UniversityDaeguRepublic of Korea BK21 Plus KNU Biomedical Convergence Program Department of Biomedical ScienceSchool of MedicineKyungpook National UniversityDaeguRepublic of Korea School of Life Sciences BK21 plus KNU Creative BioResearch GroupKyungpook National UniversityDaeguRepublic of Korea Brain Science and Engineering Institute Kyungpook National UniversityDaeguRepublic of Korea

Neuroinflammation has been identified as a crucial element in several neurological disorders. Glial cells play a critical role in directing neuroinflammation, both in deleterious and beneficial ways.

关键词： inflammation considerably