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| 1 | Autonomous driving in the uncertain traffic--a deep reinforcement learning approach显示文摘representation capability of deep learning(DL) and the optimal decision making and control capability of reinforcement learning(RL), is a good approach to address this problem. Traffic environment is built up by combining intelligent driver model(IDM) and lane-change model as behavioral model for vehicles. To increase the stochastic of the established traffic environment, tricks such as defining a speed distribution with cutoff for traffic cars and using various politeness factors to represent distinguished lane-change style, are taken. For training an artificial agent to achieve successful strategies that lead to the greatest long-term rewards and sophisticated maneuver, deep deterministic policy gradient(DDPG) algorithm is deployed for learning. Reward function is designed to get a trade-off between the vehicle speed, stability and driving safety. Results show that the proposed approach can achieve good autonomous maneuvering in a scenario of complex traffic behavior through interaction with the environment. | Yang Shun Wu Jian Zhang Sumin Han Wei | 2018 | The Journal of China Universities of Posts and Telecommunications2018，25，6： | 2 |
| 2 | Cell damage during femtosecond optical trapping 显示文摘 | Kang-Bin Im Sumin Han Hwajcon Park | 2005 | Proc SPIE2005，5699，： | 1 |
| 3 | Trapping Efficiency of a Femtosecond Laser and Damage Thresholds for Biological Cells显示文摘 | Kang-Bin Im Sung-Bin Ju Sumin Han | 2006 | Journal of the Korean Physical Society2006，48，5： | 1 |
| 4 | Engineering of Materials for Respiratory Protection:Salt-Coated Antimicrobial Fabrics for Their Application in Respiratory Devices显示文摘CONSPECTUS:The development of a highly effective,low-cost method for protection against direct transmission through infectious media associated with respiratory diseases has been considered to be a major challenge in the management of the pandemic outbreak.Currently,filtration in respirators and masks depends on the mesh size,raising safety concerns about direct contact with the virus-laden layers of masks and respirators during use and disposal.Also,conventional medical face masks and respirators are recommended for single use only because long-term use and reuse of masks increase the risk of contact transmission of pathogens.As a result,mask reusability has gained much attention in addressing the global problem of respirator and mask shortages during the COVID-19 pandemic.Furthermore,coinfection by influenza,SARSCoV-2,and bacteria has been an ongoing issue in the current COVID-19 pandemic.In our response to the increasing demand for more convenient forms of disease control,our group has investigated antimicrobial technologies for respiratory devices against pandemic/epidemic diseases and developed two universal antimicrobial coating technologies:(1)nonwashable,reusable salt-coated fabrics and(2)washable,photopolymerizable polymer-coated fabrics which efficiently inactivate infectious viruses by contact with the filter.This is an opportune time to assess research efforts toward antimicrobial face mask technology for its expected impact on society and the economy. | Sumin Han Euna Oh Erin Keltie Jong Sung Kim Hyo-Jick Choi | 2022 | Accounts of Materials Research2022，3，3： | 0 |
| 5 | Novel Zr-doped β-Li_(3)PS_(4) solid electrolyte for all-solid-state lithium batteries with a combined experimental and computational approach显示文摘All-solid-state lithium batteries(ASSLBs)are promising for safety and high-energy-density large-scale energy storage.In this contribution,we propose a Li_(3–4x)Zr_(x)PS_(4)(LZPS)by Zr-dopedβ-Li_(3)PS_(4)(LPS)as a novel solid electrolyte(SE)for ASSLBs based on experimental and simulation methods.The structure,electronic property,mechanical property,and ionic transport properties of LZPS(x=0,0.03,0.06,and 0.1)are investigated with first-principles calculations.Meanwhile,LZPS is prepared by solid states reaction method.By combining experimental analysis and first-principles calculations,it is confirmed that a small amount of Zr4+can be successfully doped into the framework ofβ-LPS composites without significantly compromising structural integrity.When the Zr^(4+)concentration is x=0.03,the doped material Li_(2.88)Zr_(0.03)PS_(4)exhibits the highest ionic conductivity(5.1×10^(−4)S·cm^(−1))at 30℃,and the Li-ion migration energy barrier is the lowest.The Li_(2.88)Zr_(0.03)PS_(4)SE has obtained the best mechanical properties,the good ductility,and shear deformation resistance,which can better maintain the structural stability of the battery.In addition,the Li/Li symmetrical cell is assembled,which shows excellent electrochemical stability of electrolyte against lithium.The constructed all-solid-state batteries(LiCoO_(2)-Li_(6)PS_(5)Cl|Li_(2.88)Zr_(0.03)PS_(4)|Li-In)delivers an initial discharge capacity of 130.4 mAh·g^(−1)at 0.2 C and a capacity retention of 85.1%after 100 cycles at room temperature.This study provides a promising electrolyte for the application of ASSLBs with high ionic conductivity and excellent stability against lithium. | Junbo Zhang Guoxi Zhu Han Li Jiangwei Ju Jianwei Gu Renzhuang Xu Sumin Jin Jianqiu Zhou Bingbing Chen | 2023 | Nano Research2023，16，2： | 0 |
| 6 | Flexible micro-LED display and its application in Gbps multi-channel visible light communication显示文摘A flexible full-color micro-LED display with high mechanical robustness was fabricated by printing quantum dots(QDs)on a blue micro-LED array using standard photolithography.The red and green colors yielded from QDs exhibit a better color gamut than conventional color filters.The light conversion efficiency was enhanced by adding TiO2 nanoparticles to the QD-photoresist composite.This full-color micro-LED display was successfully mounted on various unusual substrates such as curved glass,fabrics,and human skin,enabling diverse optoelectronic applications.In addition,wireless multi-channel visible light communication(VLC)based on the wavelength-division-multiplexing orthogonal-frequency-division-multiplexing(WDM-OFDM)technique was demonstrated using a QD-based color micro-LED panel.A high data transmission rate of 1.9 Gbps was successfully obtained owing to the high electrical-optical modulation bandwidth of the QD-based micro-LED panel. | Luhing Hu Jaeyong Choi Sumin Hwangbo Do-Hoon Kwon Bongkyun Jang Seunghyeon Ji Jae-Hyun Kim Sang-Kook Han Jong-Hyun Ahn | 2022 | npj Flexible Electronics2022，6，1： | 0 |
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