共 50 条
- [31] Room-temperature exciton-polaritons with two-dimensional WS2SCIENTIFIC REPORTS, 2016, 6Flatten, L. C.论文数: 0 引用数: 0 h-index: 0机构: Univ Oxford, Dept Mat, Parks Rd, Oxford OX1 3PH, England Univ Oxford, Dept Mat, Parks Rd, Oxford OX1 3PH, EnglandHe, Z.论文数: 0 引用数: 0 h-index: 0机构: Univ Oxford, Dept Mat, Parks Rd, Oxford OX1 3PH, England Univ Oxford, Dept Mat, Parks Rd, Oxford OX1 3PH, EnglandColes, D. M.论文数: 0 引用数: 0 h-index: 0机构: Univ Oxford, Dept Mat, Parks Rd, Oxford OX1 3PH, England Univ Oxford, Dept Phys, Clarendon Lab, Oxford OX1 3PU, England Univ Oxford, Dept Mat, Parks Rd, Oxford OX1 3PH, EnglandTrichet, A. A. P.论文数: 0 引用数: 0 h-index: 0机构: Univ Oxford, Dept Mat, Parks Rd, Oxford OX1 3PH, England Univ Oxford, Dept Mat, Parks Rd, Oxford OX1 3PH, EnglandPowell, A. W.论文数: 0 引用数: 0 h-index: 0机构: Univ Oxford, Dept Mat, Parks Rd, Oxford OX1 3PH, England Univ Oxford, Dept Mat, Parks Rd, Oxford OX1 3PH, EnglandTaylor, R. A.论文数: 0 引用数: 0 h-index: 0机构: Univ Oxford, Dept Phys, Clarendon Lab, Oxford OX1 3PU, England Univ Oxford, Dept Mat, Parks Rd, Oxford OX1 3PH, EnglandWarner, J. H.论文数: 0 引用数: 0 h-index: 0机构: Univ Oxford, Dept Mat, Parks Rd, Oxford OX1 3PH, England Univ Oxford, Dept Mat, Parks Rd, Oxford OX1 3PH, EnglandSmith, J. M.论文数: 0 引用数: 0 h-index: 0机构: Univ Oxford, Dept Mat, Parks Rd, Oxford OX1 3PH, England Univ Oxford, Dept Mat, Parks Rd, Oxford OX1 3PH, England
- [32] An ultrathin memristor based on a two-dimensional WS2/MoS2 heterojunctionNANOSCALE, 2021, 13 (26) : 11497 - 11504Zhang, Wenguang论文数: 0 引用数: 0 h-index: 0机构: Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Sch Opt & Elect Informat, Wuhan 430074, Peoples R China Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Sch Opt & Elect Informat, Wuhan 430074, Peoples R ChinaGao, Hui论文数: 0 引用数: 0 h-index: 0机构: Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Sch Opt & Elect Informat, Wuhan 430074, Peoples R China Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Sch Opt & Elect Informat, Wuhan 430074, Peoples R ChinaDeng, Chunsan论文数: 0 引用数: 0 h-index: 0机构: Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Sch Opt & Elect Informat, Wuhan 430074, Peoples R China Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Sch Opt & Elect Informat, Wuhan 430074, Peoples R ChinaLv, Ting论文数: 0 引用数: 0 h-index: 0机构: Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Sch Opt & Elect Informat, Wuhan 430074, Peoples R China Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Sch Opt & Elect Informat, Wuhan 430074, Peoples R ChinaHu, Sanlue论文数: 0 引用数: 0 h-index: 0机构: Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Sch Opt & Elect Informat, Wuhan 430074, Peoples R China Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Sch Opt & Elect Informat, Wuhan 430074, Peoples R ChinaWu, Hao论文数: 0 引用数: 0 h-index: 0机构: Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Sch Opt & Elect Informat, Wuhan 430074, Peoples R China Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Sch Opt & Elect Informat, Wuhan 430074, Peoples R ChinaXue, Songyan论文数: 0 引用数: 0 h-index: 0机构: Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Sch Opt & Elect Informat, Wuhan 430074, Peoples R China Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Sch Opt & Elect Informat, Wuhan 430074, Peoples R ChinaTao, Yufeng论文数: 0 引用数: 0 h-index: 0机构: Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Sch Opt & Elect Informat, Wuhan 430074, Peoples R China Jiangsu Univ, Inst Micronano Optoelect & Terahertz Technol, Zhenjiang 212013, Jiangsu, Peoples R China Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Sch Opt & Elect Informat, Wuhan 430074, Peoples R ChinaDeng, Leimin论文数: 0 引用数: 0 h-index: 0机构: Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Sch Opt & Elect Informat, Wuhan 430074, Peoples R China Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Sch Opt & Elect Informat, Wuhan 430074, Peoples R ChinaXiong, Wei论文数: 0 引用数: 0 h-index: 0机构: Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Sch Opt & Elect Informat, Wuhan 430074, Peoples R China Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Sch Opt & Elect Informat, Wuhan 430074, Peoples R China
- [33] Electronic properties of two-dimensional in-plane heterostructures of WS2/WSe2/MoS2MATERIALS RESEARCH EXPRESS, 2018, 5 (04)Mu, Cong论文数: 0 引用数: 0 h-index: 0机构: Shandong Univ, Sch Phys, State Key Lab Crystal Mat, Jinan 250100, Shandong, Peoples R China Shandong Univ, Sch Phys, State Key Lab Crystal Mat, Jinan 250100, Shandong, Peoples R ChinaWei, Wei论文数: 0 引用数: 0 h-index: 0机构: Shandong Univ, Sch Phys, State Key Lab Crystal Mat, Jinan 250100, Shandong, Peoples R China Shandong Univ, Sch Phys, State Key Lab Crystal Mat, Jinan 250100, Shandong, Peoples R ChinaLi, Jinjin论文数: 0 引用数: 0 h-index: 0机构: Shandong Univ, Sch Phys, State Key Lab Crystal Mat, Jinan 250100, Shandong, Peoples R China Shandong Univ, Sch Phys, State Key Lab Crystal Mat, Jinan 250100, Shandong, Peoples R ChinaHuang, Baibiao论文数: 0 引用数: 0 h-index: 0机构: Shandong Univ, Sch Phys, State Key Lab Crystal Mat, Jinan 250100, Shandong, Peoples R China Shandong Univ, Sch Phys, State Key Lab Crystal Mat, Jinan 250100, Shandong, Peoples R ChinaDai, Ying论文数: 0 引用数: 0 h-index: 0机构: Shandong Univ, Sch Phys, State Key Lab Crystal Mat, Jinan 250100, Shandong, Peoples R China Shandong Univ, Sch Phys, State Key Lab Crystal Mat, Jinan 250100, Shandong, Peoples R China
- [34] Ultrafast Saturable Absorption of Two-Dimensional MoS2 NanosheetsACS NANO, 2013, 7 (10) : 9260 - 9267Wang, Kangpeng论文数: 0 引用数: 0 h-index: 0机构: Acad Sinica, Shanghai Inst Opt & Fine Mech, Key Lab Mat High Power Laser, Shanghai 201800, Peoples R China Acad Sinica, Shanghai Inst Opt & Fine Mech, Key Lab Mat High Power Laser, Shanghai 201800, Peoples R ChinaWang, Jun论文数: 0 引用数: 0 h-index: 0机构: Acad Sinica, Shanghai Inst Opt & Fine Mech, Key Lab Mat High Power Laser, Shanghai 201800, Peoples R China Acad Sinica, Shanghai Inst Opt & Fine Mech, Key Lab Mat High Power Laser, Shanghai 201800, Peoples R ChinaFan, Jintai论文数: 0 引用数: 0 h-index: 0机构: Acad Sinica, Shanghai Inst Opt & Fine Mech, Key Lab Mat High Power Laser, Shanghai 201800, Peoples R China Acad Sinica, Shanghai Inst Opt & Fine Mech, Key Lab Mat High Power Laser, Shanghai 201800, Peoples R ChinaLotya, Mustafa论文数: 0 引用数: 0 h-index: 0机构: Trinity Coll Dublin, Sch Phys, Dublin 2, Ireland Trinity Coll Dublin, CRANN, Dublin 2, Ireland Acad Sinica, Shanghai Inst Opt & Fine Mech, Key Lab Mat High Power Laser, Shanghai 201800, Peoples R ChinaO'Neill, Arlene论文数: 0 引用数: 0 h-index: 0机构: Trinity Coll Dublin, Sch Phys, Dublin 2, Ireland Trinity Coll Dublin, CRANN, Dublin 2, Ireland Acad Sinica, Shanghai Inst Opt & Fine Mech, Key Lab Mat High Power Laser, Shanghai 201800, Peoples R ChinaFox, Daniel论文数: 0 引用数: 0 h-index: 0机构: Trinity Coll Dublin, Sch Phys, Dublin 2, Ireland Trinity Coll Dublin, CRANN, Dublin 2, Ireland Acad Sinica, Shanghai Inst Opt & Fine Mech, Key Lab Mat High Power Laser, Shanghai 201800, Peoples R ChinaFeng, Yanyan论文数: 0 引用数: 0 h-index: 0机构: Acad Sinica, Shanghai Inst Opt & Fine Mech, Key Lab Mat High Power Laser, Shanghai 201800, Peoples R China Acad Sinica, Shanghai Inst Opt & Fine Mech, Key Lab Mat High Power Laser, Shanghai 201800, Peoples R ChinaZhang, Xiaoyan论文数: 0 引用数: 0 h-index: 0机构: Acad Sinica, Shanghai Inst Opt & Fine Mech, Key Lab Mat High Power Laser, Shanghai 201800, Peoples R China Acad Sinica, Shanghai Inst Opt & Fine Mech, Key Lab Mat High Power Laser, Shanghai 201800, Peoples R ChinaJiang, Benxue论文数: 0 引用数: 0 h-index: 0机构: Acad Sinica, Shanghai Inst Opt & Fine Mech, Key Lab Mat High Power Laser, Shanghai 201800, Peoples R China Acad Sinica, Shanghai Inst Opt & Fine Mech, Key Lab Mat High Power Laser, Shanghai 201800, Peoples R ChinaZhao, Quanzhong论文数: 0 引用数: 0 h-index: 0机构: Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, State Key Lab High Field Laser Phys, Shanghai 201800, Peoples R China Acad Sinica, Shanghai Inst Opt & Fine Mech, Key Lab Mat High Power Laser, Shanghai 201800, Peoples R ChinaZhang, Hongzhou论文数: 0 引用数: 0 h-index: 0机构: Trinity Coll Dublin, Sch Phys, Dublin 2, Ireland Trinity Coll Dublin, CRANN, Dublin 2, Ireland Acad Sinica, Shanghai Inst Opt & Fine Mech, Key Lab Mat High Power Laser, Shanghai 201800, Peoples R ChinaColeman, Jonathan N.论文数: 0 引用数: 0 h-index: 0机构: Trinity Coll Dublin, Sch Phys, Dublin 2, Ireland Trinity Coll Dublin, CRANN, Dublin 2, Ireland Acad Sinica, Shanghai Inst Opt & Fine Mech, Key Lab Mat High Power Laser, Shanghai 201800, Peoples R ChinaZhang, Long论文数: 0 引用数: 0 h-index: 0机构: Acad Sinica, Shanghai Inst Opt & Fine Mech, Key Lab Mat High Power Laser, Shanghai 201800, Peoples R China Acad Sinica, Shanghai Inst Opt & Fine Mech, Key Lab Mat High Power Laser, Shanghai 201800, Peoples R ChinaBlau, Werner Josef论文数: 0 引用数: 0 h-index: 0机构: Acad Sinica, Shanghai Inst Opt & Fine Mech, Key Lab Mat High Power Laser, Shanghai 201800, Peoples R China Trinity Coll Dublin, Sch Phys, Dublin 2, Ireland Trinity Coll Dublin, CRANN, Dublin 2, Ireland Acad Sinica, Shanghai Inst Opt & Fine Mech, Key Lab Mat High Power Laser, Shanghai 201800, Peoples R China
- [35] Study of the Properties of Two-Dimensional MoS2 and WS2 Films Synthesized by Chemical-Vapor DepositionSEMICONDUCTORS, 2020, 54 (04) : 454 - 464Smagulova, S. A.论文数: 0 引用数: 0 h-index: 0机构: North Eastern Fed Univ, Yakutsk 677000, Russia North Eastern Fed Univ, Yakutsk 677000, RussiaVinokurov, P. V.论文数: 0 引用数: 0 h-index: 0机构: North Eastern Fed Univ, Yakutsk 677000, Russia North Eastern Fed Univ, Yakutsk 677000, RussiaSemenova, A. A.论文数: 0 引用数: 0 h-index: 0机构: North Eastern Fed Univ, Yakutsk 677000, Russia North Eastern Fed Univ, Yakutsk 677000, RussiaPopova, E. I.论文数: 0 引用数: 0 h-index: 0机构: North Eastern Fed Univ, Yakutsk 677000, Russia North Eastern Fed Univ, Yakutsk 677000, RussiaVasylieva, F. D.论文数: 0 引用数: 0 h-index: 0机构: North Eastern Fed Univ, Yakutsk 677000, Russia North Eastern Fed Univ, Yakutsk 677000, RussiaObraztsova, E. D.论文数: 0 引用数: 0 h-index: 0机构: Russian Acad Sci, Prokhorov Gen Phys Inst, Moscow 119991, Russia Moscow Inst Phys & Technol, Dolgoprudnyi 141701, Moscow Oblast, Russia North Eastern Fed Univ, Yakutsk 677000, RussiaFedotov, P. V.论文数: 0 引用数: 0 h-index: 0机构: Russian Acad Sci, Prokhorov Gen Phys Inst, Moscow 119991, Russia Moscow Inst Phys & Technol, Dolgoprudnyi 141701, Moscow Oblast, Russia North Eastern Fed Univ, Yakutsk 677000, RussiaAntonova, I. V.论文数: 0 引用数: 0 h-index: 0机构: Russian Acad Sci, Rzhanov Inst Semicond Phys, Siberian Branch, Novosibirsk 630090, Russia North Eastern Fed Univ, Yakutsk 677000, Russia
- [36] Interlayer coupling and optoelectronic properties of ultrathin two-dimensional heterostructures based on graphene, MoS2 and WS2JOURNAL OF MATERIALS CHEMISTRY C, 2015, 3 (21) : 5467 - 5473Huo, Nengjie论文数: 0 引用数: 0 h-index: 0机构: Chinese Acad Sci, Inst Semicond, State Key Lab Superlattices & Microstruct, Beijing 100083, Peoples R China Chinese Acad Sci, Inst Semicond, State Key Lab Superlattices & Microstruct, Beijing 100083, Peoples R ChinaWei, Zhongming论文数: 0 引用数: 0 h-index: 0机构: Chinese Acad Sci, Inst Semicond, State Key Lab Superlattices & Microstruct, Beijing 100083, Peoples R China Chinese Acad Sci, Inst Semicond, State Key Lab Superlattices & Microstruct, Beijing 100083, Peoples R ChinaMeng, Xiuqing论文数: 0 引用数: 0 h-index: 0机构: Zhejiang Normal Univ, Res Ctr Light Emitting Diodes LED, Jinhua 321004, Peoples R China Chinese Acad Sci, Inst Semicond, State Key Lab Superlattices & Microstruct, Beijing 100083, Peoples R ChinaKang, Joongoo论文数: 0 引用数: 0 h-index: 0机构: Natl Renewable Energy Lab, Golden, CO 80401 USA Chinese Acad Sci, Inst Semicond, State Key Lab Superlattices & Microstruct, Beijing 100083, Peoples R ChinaWu, Fengmin论文数: 0 引用数: 0 h-index: 0机构: Zhejiang Normal Univ, Res Ctr Light Emitting Diodes LED, Jinhua 321004, Peoples R China Chinese Acad Sci, Inst Semicond, State Key Lab Superlattices & Microstruct, Beijing 100083, Peoples R ChinaLi, Shu-Shen论文数: 0 引用数: 0 h-index: 0机构: Chinese Acad Sci, Inst Semicond, State Key Lab Superlattices & Microstruct, Beijing 100083, Peoples R China Chinese Acad Sci, Inst Semicond, State Key Lab Superlattices & Microstruct, Beijing 100083, Peoples R ChinaWei, Su-Huai论文数: 0 引用数: 0 h-index: 0机构: Natl Renewable Energy Lab, Golden, CO 80401 USA Chinese Acad Sci, Inst Semicond, State Key Lab Superlattices & Microstruct, Beijing 100083, Peoples R ChinaLi, Jingbo论文数: 0 引用数: 0 h-index: 0机构: Chinese Acad Sci, Inst Semicond, State Key Lab Superlattices & Microstruct, Beijing 100083, Peoples R China Chinese Acad Sci, Inst Semicond, State Key Lab Superlattices & Microstruct, Beijing 100083, Peoples R China
- [37] Study of the Properties of Two-Dimensional MoS2 and WS2 Films Synthesized by Chemical-Vapor DepositionSemiconductors, 2020, 54 : 454 - 464S. A. Smagulova论文数: 0 引用数: 0 h-index: 0机构: North-Eastern Federal University,P. V. Vinokurov论文数: 0 引用数: 0 h-index: 0机构: North-Eastern Federal University,A. A. Semenova论文数: 0 引用数: 0 h-index: 0机构: North-Eastern Federal University,E. I. Popova论文数: 0 引用数: 0 h-index: 0机构: North-Eastern Federal University,F. D. Vasylieva论文数: 0 引用数: 0 h-index: 0机构: North-Eastern Federal University,E. D. Obraztsova论文数: 0 引用数: 0 h-index: 0机构: North-Eastern Federal University,P. V. Fedotov论文数: 0 引用数: 0 h-index: 0机构: North-Eastern Federal University,I. V. Antonova论文数: 0 引用数: 0 h-index: 0机构: North-Eastern Federal University,
- [38] Growth of two-dimensional WS2 thin films by pulsed laser deposition techniqueTHIN SOLID FILMS, 2018, 668 : 69 - 73Tian, Kun论文数: 0 引用数: 0 h-index: 0机构: Univ Utah, Dept Mat Sci & Engn, Nanostruct Mat Res Lab, Salt Lake City, UT 84112 USA Univ Utah, Dept Mat Sci & Engn, Nanostruct Mat Res Lab, Salt Lake City, UT 84112 USABaskaran, Karthikeyan论文数: 0 引用数: 0 h-index: 0机构: Univ Utah, Dept Mat Sci & Engn, Nanostruct Mat Res Lab, Salt Lake City, UT 84112 USA Univ Utah, Dept Mat Sci & Engn, Nanostruct Mat Res Lab, Salt Lake City, UT 84112 USATiwari, Ashutosh论文数: 0 引用数: 0 h-index: 0机构: Univ Utah, Dept Mat Sci & Engn, Nanostruct Mat Res Lab, Salt Lake City, UT 84112 USA Univ Utah, Dept Mat Sci & Engn, Nanostruct Mat Res Lab, Salt Lake City, UT 84112 USA
- [39] Magnetoluminescence and valley polarized state of a two-dimensional electron gas in WS2 monolayersNATURE NANOTECHNOLOGY, 2015, 10 (07) : 603 - +Scrace, T.论文数: 0 引用数: 0 h-index: 0机构: SUNY Buffalo, Buffalo, NY 14260 USA SUNY Buffalo, Buffalo, NY 14260 USATsai, Y.论文数: 0 引用数: 0 h-index: 0机构: SUNY Buffalo, Buffalo, NY 14260 USA SUNY Buffalo, Buffalo, NY 14260 USABarman, B.论文数: 0 引用数: 0 h-index: 0机构: SUNY Buffalo, Buffalo, NY 14260 USA SUNY Buffalo, Buffalo, NY 14260 USASchweidenback, L.论文数: 0 引用数: 0 h-index: 0机构: SUNY Buffalo, Buffalo, NY 14260 USA SUNY Buffalo, Buffalo, NY 14260 USAPetrou, A.论文数: 0 引用数: 0 h-index: 0机构: SUNY Buffalo, Buffalo, NY 14260 USA SUNY Buffalo, Buffalo, NY 14260 USAKioseoglou, G.论文数: 0 引用数: 0 h-index: 0机构: Univ Crete, GR-71003 Iraklion, Greece SUNY Buffalo, Buffalo, NY 14260 USAOzfidan, I.论文数: 0 引用数: 0 h-index: 0机构: CNR, Emerging Technol Div, Quantum Theory Grp, Ottawa, ON K1A 0R6, Canada Univ Ottawa, Dept Phys, Ottawa, ON K1N 6N5, Canada SUNY Buffalo, Buffalo, NY 14260 USAKorkusinski, M.论文数: 0 引用数: 0 h-index: 0机构: CNR, Emerging Technol Div, Quantum Theory Grp, Ottawa, ON K1A 0R6, Canada SUNY Buffalo, Buffalo, NY 14260 USAHawrylak, P.论文数: 0 引用数: 0 h-index: 0机构: CNR, Emerging Technol Div, Quantum Theory Grp, Ottawa, ON K1A 0R6, Canada Univ Ottawa, Dept Phys, Ottawa, ON K1N 6N5, Canada SUNY Buffalo, Buffalo, NY 14260 USA
- [40] Bandgap modulation in the two-dimensional core-shell-structured monolayers of WS2ISCIENCE, 2022, 25 (01)Kang, Seohui论文数: 0 引用数: 0 h-index: 0机构: Ewha Womans Univ, Dept Chem Engn & Mat Sci, Grad Program Syst Hlth Sci & Engn, Seoul 03760, South Korea Ewha Womans Univ, Dept Chem Engn & Mat Sci, Grad Program Syst Hlth Sci & Engn, Seoul 03760, South KoreaEshete, Yonas Assefa论文数: 0 引用数: 0 h-index: 0机构: Sungkyunkwan Univ, Dept Energy Sci, Suwon 16419, South Korea Ewha Womans Univ, Dept Chem Engn & Mat Sci, Grad Program Syst Hlth Sci & Engn, Seoul 03760, South KoreaLee, Sujin论文数: 0 引用数: 0 h-index: 0机构: Ewha Womans Univ, Dept Chem Engn & Mat Sci, Grad Program Syst Hlth Sci & Engn, Seoul 03760, South Korea Ewha Womans Univ, Dept Chem Engn & Mat Sci, Grad Program Syst Hlth Sci & Engn, Seoul 03760, South KoreaWon, Dongyeun论文数: 0 引用数: 0 h-index: 0机构: Sungkyunkwan Univ, Dept Energy Sci, Suwon 16419, South Korea Ewha Womans Univ, Dept Chem Engn & Mat Sci, Grad Program Syst Hlth Sci & Engn, Seoul 03760, South KoreaIm, Saemi论文数: 0 引用数: 0 h-index: 0机构: Ewha Womans Univ, Dept Chem Engn & Mat Sci, Grad Program Syst Hlth Sci & Engn, Seoul 03760, South Korea Ewha Womans Univ, Dept Chem Engn & Mat Sci, Grad Program Syst Hlth Sci & Engn, Seoul 03760, South Korea论文数: 引用数: h-index:机构:论文数: 引用数: h-index:机构:Yang, Heejun论文数: 0 引用数: 0 h-index: 0机构: Korea Adv Inst Sci & Technol KAIST, Dept Phys, Daejeon 34141, South Korea Ewha Womans Univ, Dept Chem Engn & Mat Sci, Grad Program Syst Hlth Sci & Engn, Seoul 03760, South Korea