A5101962972- Iterative Learning Control Systems
- Control Systems in Engineering
- Ergonomics and Musculoskeletal Disorders
- Perovskite Materials and Applications
- Technology Assessment and Management
- Quantum Dots Synthesis And Properties
- Gaze Tracking and Assistive Technology
- Topic Modeling
- Natural Language Processing Techniques
- Optimization and Packing Problems
- Network Security and Intrusion Detection
- IoT and Edge/Fog Computing
- Network Packet Processing and Optimization
- Chalcogenide Semiconductor Thin Films
- Hydraulic and Pneumatic Systems
- Video Analysis and Summarization
- Advanced Image and Video Retrieval Techniques
- Green IT and Sustainability
- Conducting polymers and applications
- Mobile Crowdsensing and Crowdsourcing
- Adaptive Control of Nonlinear Systems
- Advanced Vision and Imaging
- Aerodynamics and Fluid Dynamics Research
- Energy and Environmental Systems
- Sensorless Control of Electric Motors
Korea Advanced Institute of Science and Technology
2012-2024
Ulsan National Institute of Science and Technology
2017
Royal Australasian College of Surgeons
2017
The University of Adelaide
2017
New York University Press
2017
Cambridge University Press
2017
Electronics and Telecommunications Research Institute
2007-2009
Daewoo Shipbuilding and Marine Engineering (South Korea)
2008
Sungkyunkwan University
2005
As high-speed networks are becoming commonplace, it is increasingly challenging to prevent the attack attempts at edge of Internet. While many high-performance intrusion detection systems (IDSes) employ dedicated network processors or special memory meet demanding performance requirements, often increases cost and limits functional flexibility. In contrast, existing software-based IDS stacks fail achieve a high throughput despite modern hardware innovations such as multicore CPUs, manycore...
Lead sulfide (PbS) colloidal quantum dots (CQDs) are promising materials for next-generation flexible solar cells because of near-infrared absorption, facile bandgap tunability, and superior air stability. However, CQD devices still lack enough flexibility to be applied wearable owing the poor mechanical properties films. In this study, a approach is proposed improve stability CQDs without compromising high power conversion efficiency (PCE) devices. (3-aminopropyl)triethoxysilane (APTS)...
Abstract The potential of hybrid perovskite/organic solar cells (HSCs) is increasingly recognized owing to their advantageous characteristics, including straightforward fabrication, broad‐spectrum photon absorption, and minimal open‐circuit voltage ( V OC ) loss. Nonetheless, a key bottleneck for efficiency improvement the energy level mismatch at perovskite/bulk‐heterojunction (BHJ) interface, leading charge accumulation. In this study, it demonstrated that introducing uniform sub‐nanometer...
The development of stretchable electrodes for intrinsically organic solar cells (IS-OSCs) with both high power conversion efficiency (PCE) and mechanical stability is crucial wearable electronics. However, research on...
Abstract Silver bismuth disulfide (AgBiS 2 ) colloidal nanocrystals (CNCs) have emerged as ecofriendly photoactive materials with excellent photoconductivity and high absorption coefficients, in compliance the restriction of hazardous substances (RoHS) guidelines. To maximize theoretical potential AgBiS CNC solar cells, a new diketopyrrolopyrrole (DPP)‐based polymer, BD2FCT, optimized hole transport layer (HTL), is developed. This asymmetric thiophene‐rich polymer HTL effectively complements...
Hybrid colloidal quantum dot (CQD)/organic architectures are promising candidates for emerging optoelectronic devices having high performance and inexpensive fabrication. For unlocking the potential of CQD/organic hybrid devices, enhancing charge extraction properties at electron transport layer (ETL)/CQD interfaces is crucial. Hence, we carefully adjust interface between ETL CQD by incorporating an interfacial (EIL) using several types cinnamic acid ligands. The EIL a cascading band offset...
IoT devices are in general considered to be straightforward use. However, we find that there a number of situations where the usability becomes poor. The include but not limited followings: 1) when initializing an device, 2) trying control device which is initialized by another person, and 3) out many same type. We tackle these proposing new association-free communication method, QuickTalk. QuickTalk lets user such as smartphone pinpoint activate with help IR transmitter communicate...
A discrete-time sliding mode control (DSMC) with a decoupled disturbance compensator (DDC) is nonlinear and robust method, which suitable for slowly-varying disturbances. To effectively compensate the disturbances, gain of DDC should be designed in systematic way. This paper presents frequency-domain design method DSMC presence time delay. In addition, new generalized (GDDC) frequency domain, improves phase response as compared to conventional DDC. Experimental results on an industrial servo...
Objective: The present study was to improve the graphic user interface (GUI) of a military computer-based training (CBT) system in terms usability.BR Background: Existing studies have focused on usability evaluation particular GUI type such as sequence, hierarchy, or context type; however, few research has been conducted which identifies preferred features based comparative analysis different types.BR Method: A by 9 CBT design experts using 7-point scale (1: very low, 4: neutral, and 7:...
This paper presents a method to enhance robustness in sliding mode control (SMC) combined with decoupled disturbance compensator (DDC). More specifically, gain selection for the DDC industrial servo systems unknown inertia is developed. The SMC well-known robust which effective slowly-varying and bounded disturbances. However, when of improperly selected, large error parameter can lead poor performance such as overshoot motor position. shows that caused by an uncertain produce pair complex...
This paper presents a parameter selection method of notch filters for suppressing mechanical resonances in industrial servo systems using the deep deterministic policy gradient (DDPG) algorithm. Several methods tuning filter parameters were studied such as fast-Fourier-transform-based methods, extended-Kalman-filter-based and adaptive methods. However, these do not find Q which play an important role determining system stability, consider cases multiple are required. Deep-Q-network-based was...
Objective: The present study suggested practical measures for successful patent registration based on a review of success and failure cases application filed inventions obtained from physical ergonomics research.BR Background: protection intellectual property (IP) contributes to economic growth competitiveness facilitates innovation creativity. IP rights are pursued research findings effective technology transfer commercialization; however, can be rejected if patentability requirements such...
IoT devices are in general considered to be straightforward use. However, we find that there a number of situations where the usability becomes poor. The include but not limited followings: 1) when initializing an device, 2) trying control device which is initialized and registered by another person, 3) out many same type. We tackle these proposing new association-free communication method, QuickTalk. QuickTalk lets user such as smartphone pinpoint activate with help IR transmitter...
This paper presents an effective performance shaping methodology of discrete-time sliding mode control (DSMC) with disturbance observer (DOB) based on the analysis error dynamics. DSMC DOB exhibits excellent tracking and robustness subject to external disturbances unknowns including uncertain parameters unmodelled In addition, can be easily implemented in various applications attributed its simple structure discrete-domain representation. However, cannot predicted by controller DOB, much...