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Enrichment by air classification of indium components from In-containing scrap powders scraped by sand-blasting chamber shields of sputter coaters

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Rare Metals 2010年第1期29卷 1-8页

作者： Sungkyu Lee Soo-Bok Jeong Hang-chul jung Hyun Seon Hong Yongseung Yun Sang Mo Woo Plant Engineering Center Institute for Advanced Engineering633-2 Goan-ri Baegam-myeon Cheoin-gu Yongin-si Gyeonggi-do 449-863 Korea Division of Chemical and Materials Engineering Ajou University 5 Wonchon Youngtong Suwon Gyeonggi-do 443-749 Korea Minerals and Materials Processing Division Korea Institute of Geo-science and Mineral Resources (KIGAM) 30 Gajeong-dong Yuseong-gu Daejeon 305-350 Korea Plant Engineering Center Institute for Advanced Engineering633-2 Goan-ri Baegam-myeon Cheoin-gu Yongin-siGyeonggi-do 449-863 Korea 9 Digit Co. Ltd. 20BL-10L Namdong Industrial Complex428-9 Nonhyeon-dong Namdong-gu Incheon 405-848 Korea

Raw scrap powders containing 10 wt.% In were recovered by sand-blasting chamber shields of sputter coaters and used as a sole source of indium components for both sieving and air-classification. Sieving was performed first as a feasibility test, and enrichment of indium component was possible up to 19 wt.% with a mesh size of 635. With this experimental basis, the raw scrap powders were air-classified into 12 lots according to the revolution per minute （r/min） of a single horizontally arranged classifying wheel： 4000, 6000, 8000, 10000, 12000, and 14000 r/rain. The particle cut size varied from 56 to 5 μm with turbo wheel speeds corresponding to 4000 to 14000 r/min, respectively, and enrichment of indium component was possible in fine overflow fractions at all turbo wheel speeds while the indium components were not concentrated in all of the coarse underflow fractions. The grade of the indium components became higher with decreasing particle size of the air-classified scrap powders, with the highest grade obtained in the fine overflow fraction with a turbo wheel speed of 14000 r/min. The amount of indium in the fine overflow fractions varied between 15.9 wt.% and 31.5 wt.%. All in all, the grade or purity of the indium component improved rather significantly from 15.9 wt.% to 31.5 wt.% by air-classification, but this also resulted in overall decrease in recovery rate from 99.33% to 49.64%. Therefore, enrichment and separation of indium should be optimized for maximum recovery and grade of the indium components, which can be used as raw materials in the subsequent electro-refining processes.

关键词： indium air-classification recycling indium tin oxide gas-cyclone dry dispersion

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Efficacy of Saam acupuncture treatment on improvement of immune cell numbers in cancer patients:a pilot study

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Journal of Traditional Chinese Medicine 2014年第5期34卷 550-554页

作者： Dae-Joon Kim Seong-Hoon Park jung-chul Seo Kyung Soon Kim Ki Cheul Sohn Im Hee Shin Hun Mo Ryoo Department of Internal Medicine Oriental Medical HospitalDaegu Haany UniversityDaegu 730-090Korea Department of Research Comprehensive and Integrative Medicine InstituteDaegu 705-030Korea Department of Preventive Medicine Hospital of Catholic University of DaeguDaegu 705-718Korea Department of Medical Statistics School of MedicineCatholic University of DaeguDaegu 705-718Korea Department of Internal Medicine School of MedicineCatholic University of DaeguDaegu 705-718Korea

OBJECTIVE: To collect preliminary data on the effects of Saam acupuncture with regard to the immunity in cancer ***: Ten cancer patients were analyzed for improvements in immunity. Acupuncture was applied at the 5 acupuncture points, Jingqu(LU 8), Zutonggu(BL 66), Yanggu(SI 5), Yangchi(TE 4), and Zhongwan(CV 12) for 2 weeks with 4 sessions. We assessed the effect of Korean Saam acupuncture on the immune system in cancer patients by measuring particular blood cell subsets, including CD3 +,CD4+, CD8+, CD19+, and CD56+ cells, as well as total white blood cell count, absolute neutrophil count, and fatigue score. The measurement was performed before and after acupuncture and at a 2-week ***: There was a statistically significant increase in the number of CD3+(P=0.023) and CD8+ cells(P<0.001) and T-cell subsets, as well as a decrease in the fatigue severity scale(FSS) score(P=0.001) after Saam acupuncture using the 5 ***: Acupuncture may improve the immune system by increasing the counts of a few immune cells and relieve fatigue in cancer patients by decreasing FSS scores. Although this was a non-controlled study, it constitutes preliminary research investigating the potential effects of Saam acupuncture in increasing the counts of several immune cells in cancer patients.

关键词：机体免疫力癌症患者针灸治疗细胞数量疗效疲劳评估细胞亚群免疫系统

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Verification of Tire Hydroplaning Phenomenon Using Coupled FSI Simulation by CFD and FEM

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Open Journal of Applied Sciences 2020年第7期10卷 417-431页

作者： Hyun chul jung Mi Dum jung Kyoung Moon Jeong Kyunghoon Lee Design Automation & Simulation Team R & D Center KUMHO TIRE Co. Inc. Yongin-si Gyeonggi-do South Korea Solution Lab Co. 20 Dunsanjung-ro Seo-gu Daejeon South Korea

Hydroplaning phenomenon is one of the major factors that must be considered to ensure safe driving on wet road surfaces. In this paper, the approach to numerical simulation of the physical hydroplaning characteristics using patterned tire is described. A detailed 3-D patterned tire model is constructed by in-house modeling program and the water flow is considered as incompressible. The complex tire material compositions are effectively modeled using composites, and rubber properties generalize the Mooney-Rivlin model. The finite element method (FEM) and the advanced finite volume method (FVM) are used for structural and for fluid-tire interaction analysis, respectively. Performance prediction of hydroplaning via coupling of computational fluid dynamics (CFD) and FEM has delivered a detailed insight into the local mechanisms and root causes of hydroplaning. Numerical examples were verified by comparing the experimental test results and it is confirmed to indicate similar correlation tendency and high reliability. The effect of driving velocity, pattern groove size, and pattern direction on hydroplaning phenomenon of tire is discussed and logical results were obtained.

关键词： Tire Hydroplaning Finite Element Method Computational Fluid Dynamic Fluid Structure Interaction

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Game “Divi-Divi-Dip” Based on Interactive Robot

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Journal of Measurement Science and Instrumentation 2011年第1期2卷 30-33页

作者： Sung-ju YUN Kee-chul jung Dept.of Digital Media Human-Centered Interfaces LabSoongsil UniversitySeoul 156-743Korea

Recently the improved robot working in very various fields,many researchers are trying to develop the robot to help people in the service *** people who meet a robot in the first time generally get heterogeneous *** resolve this,we suggest an interactive game with robots to increase the *** game,called 'Divi-Divi-Dip' with 3 different body poses,is first introduced in a Korean TV *** robot is using the visionary technology to recognize the pose with camera for the interactive game.

关键词：航空维修互动游戏机器人研究人员识别技术互动式摄像头异构

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红花穴位注射液对肝癌HepG2细胞和SNU 484细胞的基因表达的影响

红花穴位注射液对肝癌HepG2细胞和SNU 484细胞的基因表达的影响

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世界针灸学会联合会成立20周年暨世界针灸学术大会

作者： Lee Kyungomin Lee Bong-hyo Lim Seong-chul Seo jung-chul Department of Acupuncture ＆ Moxibustion College of Oriental MedicineDaegu Haany UniversityKorea Department of Acupuncture ＆ Moxibustion College of Oriental MedicineDaegu Haany UniversityKorea Department of Acupuncture ＆ Moxibustion College of Oriental MedicineDaegu Haany UniversityKorea Department of Acupuncture ＆ Moxibustion College of Oriental MedicineDaegu Haany UniversityKorea

＜正＞目的:筛选红花穴位注射液对癌症细胞,如肝癌细胞 HepG2和胃癌细胞系 SNU 484基因表达的调节作用。方法:红花穴位注射液煮开,并冷藏于—7℃供使用。采用不同浓度（0.1、1.5、10、20mg/mL）的红花穴位注射液对细胞进行24小时干预,...

＜正＞目的:筛选红花穴位注射液对癌症细胞,如肝癌细胞 HepG2和胃癌细胞系 SNU 484基因表达的调节作用。方法:红花穴位注射液煮开,并冷藏于—7℃供使用。采用不同浓度（0.1、1.5、10、20mg/mL）的红花穴位注射液对细胞进行24小时干预,同时对细胞毒性进行 MTT 法检测。观察癌细胞及经过浓度为10mg/ mL 的红花穴位注射液治疗后的细胞中基因表达的差异。应用核苷酸基因芯片分析总 RNA 的基因表达,应用实时聚合酶链反应（real-time PCR）决定选取的基因表达的数量,应用二维凝胶电泳和 Q-TOP 质谱仪分析总蛋白。

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Undifferentiated embryonal sarcoma of the liver presenting as a hemorrhagic cystic tumor in an adult

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Hepatobiliary & Pancreatic Diseases International 2011年第6期10卷 657-660页

作者： Ho Hyun Kim jung chul Kim Eun Kyu Park Young Hoe Hur Yang Seok Koh Chol Kyoon Cho Hyung Seok Kim Hyun Jong Kim Department of Surgery Chonnam National University Medical School GwangjuKorea Department of Pathology Chonnam National University Medical School GwangjuKorea

BACKGROUND:Undifferentiated embryonal sarcoma (UES) of the liver is a rare,highly malignant neoplasm with a poor prognosis occurring almost exclusively in late childhood (6-10 years of age).Only a few cases have been reported in adults accounting for less than 1% of all primary liver ***:A 47-year-old woman presented with a palpable mass in the left upper *** resonance imaging revealed a 12×10 cm cystic mass with hemorrhage in the left lateral segment of the *** initial impression was a hemorrhagic cystic tumor of the *** patient underwent a left lateral sectionectomy of the *** and immunohistochemistry helped make a diagnosis of ***:The patient recovered uneventfully and received systemic *** examination for follow-up revealed a metastatic lesion in the lumbar spine (L5).She was subjected to radiotherapy at the lumbar *** survived 48 ***:Although hepatic cyst as UES of the liver is difficult to diagnose because of its rarity in adults and lack of specific findings,it should be considered in a differential diagnosis.

关键词： embryonal sarcoma liver neoplasms cyst adult

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Functionally graded structure of a nitride-strengthened Mg_(2)Si-based hybrid composite

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Journal of Magnesium and Alloys 2024年第3期12卷 1239-1256页

作者： Jeongho Yang Woongbeom Heogh Hogi Ju Sukhyun Kang Tae-Sik Jang Hyun-Do jung Mohammad Jahazi Seung chul Han Seong Je Park Hyoung Seop Kim Susmita Bose Amit Bandyopadhyay Martin Byung-Guk Jun Young Won Kim Dae-kyeom Kim Rigoberto CAdvincula Clodualdo Aranas Jr Sang Hoon Kim School of Mechanical Engineering Pusan National UniversityBusan 46241Republic of Korea Department of Mechanical Design Engineering Hanyang UniversitySeoul 04763Republic of Korea Process Research 3 Team LG Display Co.Ltd.PajuGyeonggi-do 10845Republic of Korea Department of Materials Science and Engineering Chosun UniversityGwangju 61452Republic of Korea Institute of Well-Aging Medicare&Chosun University LAMP Center Chosun UniversityGwangju 61452Republic of Korea Division of Materials Science and Engineering Hanyang UniversitySeoul 04763Republic of Korea Department of Mechanical Engineering École de Technologie SupérieureMontrealQuebec H3C 1K3Canada Material&Component Convergence R&D Center Korea Construction Equipment Technology InstituteGunsanJeollabuk-do 54002Republic of Korea School of Mechanical and Aerospace Engineering Nanyang Technological UniversitySingapore 639798Singapore Graduate Institute of Ferrous&Eco Materials Technology Pohang University of Science and TechnologyPohangGyeongsangbuk-do 37673Republic of Korea Advanced Institute for Materials Research Tohoku UniversitySendai 980-8577Japan Institute for Convergence Research and Education in Advanced Technology Yonsei UniversitySeoul 03722Republic of Korea School of Mechanical and Materials Engineering Washington State UniversityPullmanWashington 99164USA School of Mechanical Engineering Purdue UniversityWest LafayetteIndiana 47907USA Research Institute of Advanced Manufacturing Technology Korea Institute of Industrial TechnologyIncheon 21999Republic of Korea Department of Macromolecular Science and Engineering Case Western Reserve UniversityClevelandOhio 44106USA Department of Chemical and Biomolecular Engineering and Joint Institute for Advanced Materials University of TennesseeKnoxvilleTennessee 37996USA Center for Nanophase Materials and Sciences Oak Ridge National LaboratoryOak RidgeTennessee 37830USA Department of Mechanical Engineering University of New BrunswickFrederictonNew Brunswick E3B 5A3Cana

The ex-situ incorporation of the secondary SiC reinforcement,along with the in-situ incorporation of the tertiary and quaternary Mg_(3)N_(2) and Si_(3)N_(4) phases,in the primary matrix of Mg_(2)Si is employed in order to provide ultimate wear resistance based on the laser-irradiation-induced inclusion of N_(2) gas during laser powder bed *** is substantialized based on both the thermal diffusion-and chemical reactionbased metallurgy of the Mg_(2)Si–SiC/nitride hybrid *** study also proposes a functional platform for systematically modulating a functionally graded structure and modeling build-direction-dependent architectonics during additive *** strategy enables the development of a compositional gradient from the center to the edge of each melt pool of the Mg_(2)Si–SiC/nitride hybrid ***,the coefficient of friction of the hybrid composite exhibits a 309.3%decrease to–1.67 compared to–0.54 for the conventional nonreinforced Mg_(2)Si structure,while the tensile strength exhibits a 171.3%increase to 831.5 MPa compared to 485.3 MPa for the conventional *** outstanding mechanical behavior is due to the(1)the complementary and synergistic reinforcement effects of the SiC and nitride compounds,each of which possesses an intrinsically high hardness,and(2)the strong adhesion of these compounds to the Mg_(2)Si matrix despite their small sizes and low concentrations.

关键词： Laser powder bed fusion Mg_(2)Si-SiC/nitride hybrid composite Both the thermal diffusion-and chemical reaction-based metallurgy Functionally graded structure Compositional gradient Wear resistance.

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Finite Element Analysis of Tire Traction Using a Rubber-Ice Friction Model

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Open Journal of Applied Sciences 2018年第11期8卷 495-505页

作者： Hyun chul jung Woo Cheol Park Kyoung Moon Jeong R&D Center Kumho Tire Co. Inc. Yongin South Korea

The friction of road surface covered by snow or ice is very low and that results in reducing vehicle traction forces and potential traffic accidents. In general, to establish a master curve on a rubber-ice friction model is difficult because the ice surface, being not far removed from its melting point, reacts itself very sen-sitively to pressure, speed, and temperature changes. In this paper, an accepta-ble frictional interaction model was implemented to finite element method to rationally examine the frictional interaction behavior on ice between the tire and the road surface. The formula of friction characteristic according to tem-perature and sliding velocity on the ice surface was applied for tire traction analysis. Numerical results were verified by comparing the outdoor test data and it was confirmed to indicate similar correlation. It is found that the rub-ber-ice friction model will be useful for the improvement of the ice traction performance of tire.

关键词： Tire Ice Surface Finite Element Method Frictional Model Temperature Slid-ing Velocity

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Processing of Poly-Si Transistors on Flexible Glass Substrates

Processing of Poly-Si Transistors on Flexible Glass Substrat...

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第四届中美化学工程会议和第三届中日化工研讨会合并的三边...

作者： Dieter Ast Yoo-chul jung Sung-Hwan Won Cornell University USA Cornell University USA Cornell University USA

＜Abstract＞The talk will address i) barrier layers used in the 900℃fabrication of poly-Si transistors on transparent glass-ceramic substrates having a CTE matched to Si and ii) initial investigation to fabricate pol...

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Pancreatic metastasis of leiomyosarcoma in the right thigh:A case report

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World Journal of Gastroenterology 2007年第7期13卷 1135-1137页

作者： Yang Seok Koh jung chul Chol Kyoon Cho Hyun Jong Kim Division of Hepatobiliary & Pantreatic Surgery Department of Surgery Chonnam National University Medical School Gwangju 501757 Korea

Pancreatic tumors are primary in most of the cases. Pancreatic metastases associated with other primary malignancies, especially pancreatic metastasis of leiomyosarcoma, are uncommon. A 66-year-old woman underwent surgical resection of malignant mesenchymoma (70% osteosarcoma and 30% leiomyosarcoma) in the right thigh. In the postoperative period, a pancreatic mass was identified radiologically by abdominal computed tomography. Pylorus-preserving pancreaticoduodenectomy was performed. The surgical specimen revealed leiomyosarcoma metastasized to the pancreas. A metastatic nodule on the remnant pancreatic tail was discovered 9 mo after the first pancreatic resection, and distal pancreatectomy was performed. Cases of pancreatic metastasis from leiomyosarcoma are extremely rare, especially when the tumor was resectable. We report here a unique case of pancreatic metastasis from a leiomyosarcoma in the right thigh that had been treated surgically.

关键词：胰腺转移平滑肌肉瘤病理机制治疗

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