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1. Full Text A hierarchical binary quadtree index for spatial queries
by Park, Kwangjin and Park, Kwangjin
Wireless Networks, ISSN 1022-0038, 5/2019, Volume 25, Issue 4, pp. 1913 - 1929
An index structure adequate for broadcasting environments must consider the order of data delivery, index size, and selective tuning. This paper introduces a... 
Engineering | Location-based services | Communications Engineering, Networks | Spatial index | IT in Business | Computer Communication Networks | Mobile computing | Electrical Engineering | COMPUTER SCIENCE, INFORMATION SYSTEMS | TELECOMMUNICATIONS | ENGINEERING, ELECTRICAL & ELECTRONIC | Electronic data processing | Location-based systems | Algorithms | Research | Methods | Queries | Search algorithms | Tuning | Weight reduction
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2. Requirement of high lithium content in Ni-rich layered oxide material for Li ion batteries
by Kwangjin Park and Byungjin Choi
Journal of Alloys and Compounds, ISSN 0925-8388, 10/2018, Volume 766, p. 470
The formation of lithium residuals in Ni-rich nickel cobalt manganese oxide is inevitable, due to of the cation mixing by Ni2+ and excess Li required for high... 
Lithium-ion batteries | Electrochemical analysis | Flux density | Lithium | Ions | Washing | Nickel | Batteries | Cobalt compounds | Residuals | Manganese | Rechargeable batteries
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3. Full Text Location-based grid-index for spatial query processing
by Park, Kwangjin
Expert Systems With Applications, ISSN 0957-4174, 03/2014, Volume 41, Issue 4, pp. 1294 - 1300
Researchers have studied the various index structures and query processing algorithms to support efficient spatial queries in wireless communication... 
Mobile computing | Moving objects | Spatial index | OPERATIONS RESEARCH & MANAGEMENT SCIENCE | WIRELESS BROADCAST ENVIRONMENTS | DATA DISSEMINATION | COMPUTER SCIENCE, ARTIFICIAL INTELLIGENCE | ENGINEERING, ELECTRICAL & ELECTRONIC | Algorithms | Wireless communication | Query processing | Searching | Broadcasting | Clients | Servers | Expert systems
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4. Full Text Magnetic Fluorescent Delivery Vehicle Using Uniform Mesoporous Silica Spheres Embedded with Monodisperse Magnetic and Semiconductor Nanocrystals
by Kim, Jaeyun and Lee, Ji Eun and Lee, Jinwoo and Yu, Jung Ho and Kim, Byoung Chan and An, Kwangjin and Hwang, Yosun and Shin, Chae-Ho and Park, Je-Geun and Kim, Jungbae and Hyeon, Taeghwan and Environmental Molecular Sciences Laboratory (EMSL)
Journal of the American Chemical Society, ISSN 0002-7863, 01/2006, Volume 128, Issue 3, pp. 688 - 689
We synthesized uniform pore-sized mesoporous silica spheres embedded with magnetite nanocrystal and quantum dots. The magnetic separation, luminescent... 
NANOPARTICLES | MICELLES | NANOCOMPOSITE | CHEMISTRY, MULTIDISCIPLINARY | Chemical properties | Structure | Silica | Porous materials | Magnetite crystals | Magnetic properties
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5. Full Text Determining the Sorting Pathways of Multi-Spanning Inner Membrane Proteins of the Mitochondria In Vivo
by Park, Kwangjin and Kim, Hyun
Biophysical Journal, ISSN 0006-3495, 01/2014, Volume 106, Issue 2, pp. 669a - 669a
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6. Full Text DZI: An air index for spatial queries in one-dimensional channels
by Park, Kwangjin and Joly, Alexis and Valduriez, Patrick
Data & Knowledge Engineering, ISSN 0169-023X, 11/2019, Volume 124, p. 101748
The wireless data broadcast environment characteristics cause the data to be delivered sequentially via one-dimensional channels. A space-filling curve has... 
Selective tuning | Spatial index | Mobile computing | Moving objects | Networking and Internet Architecture | Databases | Computer Science
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7. Full Text Graphene balls for lithium rechargeable batteries with fast charging and high volumetric energy densities
by Son, In Hyuk and Park, Jong Hwan and Park, Seongyong and Park, Kwangjin and Han, Sangil and Shin, Jaeho and Doo, Seok-Gwang and Hwang, Yunil and Chang, Hyuk and Choi, Jang Wook
Nature Communications, ISSN 2041-1723, 12/2017, Volume 8, Issue 1, pp. 1561 - 11
Improving one property without sacrificing others is challenging for lithium-ion batteries due to the trade-off nature among key parameters. Here we report a... 
OXYGEN | CHEMICAL-VAPOR-DEPOSITION | MULTIDISCIPLINARY SCIENCES | GROWTH | CATHODE MATERIALS | RATE CAPABILITY | GRAPHITE ANODES | WALLED CARBON NANOTUBES | LI-ION BATTERIES | Charging | Side reactions | Lithium | Batteries | Silica | Chemical vapor deposition | Silicon dioxide | Structural hierarchy | Rechargeable batteries | Lithium-ion batteries | Nanoparticles | Electrode materials | Flux density | Graphene | Silicon oxide | Nickel | Specific capacity
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8. Full Text Ultra-large-scale syntheses of monodisperse nanocrystals
by Kim, Jae-Young and An, Kwangjin and Park, Je-Geun and Park, Jae-Hoon and Hyeon, Taeghwan and Hwang, Yosun and Hwang, Nong-Moon and Park, Jongnam and Noh, Han-Jin
Nature Materials, ISSN 1476-1122, 12/2004, Volume 3, Issue 12, pp. 891 - 895
The development of nanocrystals has been intensively pursued, not only for their fundamental scientific interest, but also for many technological applications.... 
ORGANIZATION | NANOPARTICLES | PHYSICS, CONDENSED MATTER | SHAPE | PHYSICS, APPLIED | SUPERLATTICES | MATERIALS SCIENCE, MULTIDISCIPLINARY | SIZE | CHEMISTRY, PHYSICAL | NANORODS | HIGHLY CRYSTALLINE | COBALT | Nanostructures - ultrastructure | Ferric Compounds - chemical synthesis | Solvents - chemistry | Molecular Conformation | Surface Properties | Nanostructures - chemistry | Ferric Compounds - chemistry | Hot Temperature | Manufactured Materials | Crystallization - methods | Equipment Failure Analysis
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9. Full Text Efficient Data Access for Location-Dependent Spatial Queries
by Kwangjin Park
计算机科学技术学报：英文版, ISSN 1000-9000, 2014, Volume 29, Issue 3, pp. 449 - 469
When the mobile environment consists of light-weight devices, the loss of network connectivity and scarce resources, e.g., low battery power and limited... 
无线设备 | 位置相关 | 移动环境 | 对等网络 | 查询效率 | 空间对象 | 算法比较 | 数据访问 | Data Structures, Cryptology and Information Theory | data broadcasting | Software Engineering | Computer Science | Artificial Intelligence (incl. Robotics) | spatial index | Theory of Computation | Information Systems Applications (incl. Internet) | Computer Science, general | location-based service | COMPUTER SCIENCE, HARDWARE & ARCHITECTURE | ENVIRONMENTS | SERVICES | NETWORKS | COMPUTER SCIENCE, SOFTWARE ENGINEERING | WIRELESS DATA BROADCAST | DATA DISSEMINATION SCHEMES | SYSTEMS | TREE | INDEX | Peer to peer computing | Algorithms | Computer science | Studies | Wireless networks | Analysis | Data processing | Information retrieval | Performance indices | Performance evaluation | Wireless communication | Design engineering | Queries | Broadcasting | Devices
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10. Full Text Requirement of high lithium content in Ni-rich layered oxide material for Li ion batteries
by Park, Kwangjin and Choi, Byungjin
Journal of Alloys and Compounds, ISSN 0925-8388, 10/2018, Volume 766, pp. 470 - 476
The formation of lithium residuals in Ni-rich nickel cobalt manganese oxide is inevitable, due to of the cation mixing by Ni and excess Li required for high... 
Lithium-ion battery | Li residuals | Nickel cobalt manganese oxide (NCM) | EXCESS | LINI1/3CO1/3MN1/3O2 | CHELATING-AGENT | MATERIALS SCIENCE, MULTIDISCIPLINARY | METALLURGY & METALLURGICAL ENGINEERING | CHEMISTRY, PHYSICAL | CATHODE MATERIALS | SURFACE | COATINGS | ELECTROCHEMICAL PERFORMANCE
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11. Full Text Machine learning assisted optimization of electrochemical properties for Ni-rich cathode materials
by Min, Kyoungmin and Choi, Byungjin and Park, Kwangjin and Cho, Eunseog
Scientific Reports, ISSN 2045-2322, 12/2018, Volume 8, Issue 1, pp. 15778 - 7
Optimizing synthesis parameters is the key to successfully design ideal Ni-rich cathode materials that satisfy principal electrochemical specifications. We... 
PEROVSKITES | MULTIDISCIPLINARY SCIENCES | Learning | Learning algorithms | Algorithms | Artificial intelligence
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12. Full Text Boosting hot electron flux and catalytic activity at metal-oxide interfaces of PtCo bimetallic nanoparticles
by Lee, Hyosun and Lim, Juhyung and Lee, Changhwan and Back, Seoin and An, Kwangjin and Shin, Jae Won and Ryoo, Ryong and Jung, Yousung and Park, Jeong Young
Nature Communications, ISSN 2041-1723, 12/2018, Volume 9, Issue 1, pp. 2235 - 8
Despite numerous studies, the origin of the enhanced catalytic performance of bimetallic nanoparticles (NPs) remains elusive because of the ever-changing... 
OXIDATION | EXCITATIONS | MULTIDISCIPLINARY SCIENCES | NANOCRYSTALS | PLATINUM | NANOSTRUCTURES | POINTS | INITIO MOLECULAR-DYNAMICS | SURFACE-CHEMISTRY | WATER | Composition | Catalysts | Chemical reactions | Catalytic activity | Nanoparticles | Interfaces | Organic chemistry | Bimetals | Hot electrons | Exothermic reactions | Oxidation | Catalysis | Electron density
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13. Full Text A Privacy-Preserving Spatial Index for Spatial Query Processing
by Song, Doohee and Song, Moonbae and Park, Kwangjin
Wireless Communications and Mobile Computing, ISSN 1530-8669, 2018, Volume 2018, pp. 1 - 9
An increasing amount of active research is being conducted to protect the locations of mobile device users. Users must tune to more data than they would like... 
LOCATION | COMPUTER SCIENCE, INFORMATION SYSTEMS | TELECOMMUNICATIONS | NEAREST-NEIGHBOR QUERIES | ENGINEERING, ELECTRICAL & ELECTRONIC | Privacy | Middleware | Mobile devices
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14. Full Text Electrochemical analysis of Pr.sub.0.3Sr.sub.0.7Co.sub.x B.sub.O.sub.3-[delta] (B=Fe, Mn; x =0, 0.3, 0.5, 0.7, and 1) as cathode materials for intermediate temperature SOFCs
by Park, Kwangjin and Kim, Junghyun and Bae, Joongmyeon
Solid State Ionics, ISSN 0167-2738, 04/2015, Volume 272, p. 45
Perovskite | Analysis | Chemical properties | Activation energy
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15. Electrochemical analysis of Pr sub(0.3)Sr sub(0.7)Co sub(x)B sub((1 - x))O sub(3 - delta )(B = Fe, Mn; x = 0, 0.3, 0.5, 0.7, and 1) as cathode materials for intermediate temperature SOFCs
by Park, Kwangjin and Kim, Junghyun and Bae, Joongmyeon
Solid State Ionics, ISSN 0167-2738, 04/2015, Volume 272, pp. 45 - 52
Selected Co-based perovskite cathode materials are investigated for use in intermediate-temperature solid oxide fuel cells (IT-SOFC). The complex... 
Thermal expansion | Iron | Materials selection | Activation energy | Thermal cycling | Cathodes | Manganese | Electrochemical impedance spectroscopy
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16. Full Text Electrochemical analysis of Pr.sub.0.3Sr.sub.0.7Co.sub.xB.sub.O.sub.3 - [delta] (B = Fe, Mn; x = 0, 0.3, 0.5, 0.7, and 1) as cathode materials for intermediate temperature SOFCs
by Park, Kwangjin and Kim, Junghyun and Bae, Joongmyeon
Solid State Ionics, ISSN 0167-2738, 04/2015, Volume 272, p. 45
To access, purchase, authenticate, or subscribe to the full-text of this article, please visit this link: http://dx.doi.org/10.1016/j.ssi.2014.12.014 * ASR... 
Thermal properties | Perovskite | Powders | Analysis | Fuel cells | Electrolytes | Glycine | Activation energy
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17. Full Text Energy-Efficient Data Dissemination Schemes for Nearest Neighbor Query Processing
by Kwangjin Park and Hyunseung Choo
IEEE Transactions on Computers, ISSN 0018-9340, 06/2007, Volume 56, Issue 6, pp. 754 - 768
Indexing provides for selective tuning but suffers from the drawback that, in order to conserve battery power, the client has to wait for and tune to the index... 
location-aware mobile services | nearest neighbor search | wireless data broadcasting | Mobile computing | Nearest neighbor search | Wireless data broadcasting | Location-aware mobile services | mobile computing | COMPUTER SCIENCE, HARDWARE & ARCHITECTURE | WIRELESS | BROADCAST | MOBILE ENVIRONMENTS | ENGINEERING, ELECTRICAL & ELECTRONIC | Electronic data processing | Mobile communication systems | Wireless communication systems | Query processing | Methods | Studies | Portable computers | Computer simulation | Mathematical analysis | Neural networks | Battery | Segments | Mathematical models | Tuning
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18. Full Text A partial index for distributed broadcasting in wireless mobile networks
by Song, Doohee and Park, Kwangjin
Information Sciences, ISSN 0020-0255, 06/2016, Volume 348, pp. 142 - 152
To increase the scalability of location-based services (LBSs), researchers have begun to propose methods for processing spatial queries in wireless broadcast... 
NN query | Data indexing | Spatial query | Data broadcast | SPATIAL QUERIES | COMPUTER SCIENCE, INFORMATION SYSTEMS | NEAREST-NEIGHBOR | Mobile communication systems | Wireless communication systems | Analysis | Geospatial data | Construction | Receiving | Effectiveness | Query processing | Transmission | Broadcasting | Servers | HBI
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19. Full Text Magnetic Plasmon Networks Programmed by Molecular Self‐Assembly
by Wang, Pengfei and Huh, Ji‐Hyeok and Lee, Jaewon and Kim, Kwangjin and Park, Kyung Jin and Lee, Seungwoo and Ke, Yonggang
Advanced Materials, ISSN 0935-9648, 07/2019, Volume 31, Issue 29, pp. e1901364 - n/a
Nanoscale manipulation of magnetic fields has been a long‐term pursuit in plasmonics and metamaterials, as it can enable a range of appealing optical... 
artificial magnetism | DNA nanotechnology | colloids | plasmonics | self‐assembly | self-assembly | PHYSICS, CONDENSED MATTER | PHYSICS, APPLIED | SHAPES | MATERIALS SCIENCE, MULTIDISCIPLINARY | NEGATIVE-INDEX | OPTICAL-PROPERTIES | CHEMISTRY, PHYSICAL | METAMATERIAL | NANOSCIENCE & NANOTECHNOLOGY | CHEMISTRY, MULTIDISCIPLINARY | FOLDING DNA | RESONANCES | PROPAGATION | Ferromagnetism | Magnetic fields | Optical properties | Nanotechnology | Gold | Networks | Circuits | Magnetic resonance | Metamaterials | Polaritons | Nanoparticles | Dichroism | Magnetism | Plasmonics | Assembly | Directional sensitivity | Deoxyribonucleic acid--DNA | Magnetic properties
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20. Full Text Synthesis of Uniform Ferrimagnetic Magnetite Nanocubes
by Kim, Dokyoon and Lee, Nohyun and Park, Mihyun and Kim, Byung Hyo and An, Kwangjin and Hyeon, Taeghwan
Journal of the American Chemical Society, ISSN 0002-7863, 01/2009, Volume 131, Issue 2, pp. 454 - 455
We synthesized uniform ferrimagnetic magnetite nanocubes in the size range from 20 to 160 nm. The magnetic property of the nanocubes was characterized, and... 
IRON-OXIDE | NANOPARTICLES | SUPERLATTICES | SEPARATION | CHROMATOGRAPHY | CHEMISTRY, MULTIDISCIPLINARY | MONODISPERSE NANOCRYSTALS
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