A5091600863- Synthesis and properties of polymers
- Silicone and Siloxane Chemistry
- Internet of Things and Social Network Interactions
- Biometric Identification and Security
- Advancements in Battery Materials
- Advanced Battery Technologies Research
- Advanced Battery Materials and Technologies
- Advanced Polymer Synthesis and Characterization
- Advanced Authentication Protocols Security
- User Authentication and Security Systems
- Radiation Detection and Scintillator Technologies
- Innovation in Digital Healthcare Systems
- Block Copolymer Self-Assembly
- Luminescence Properties of Advanced Materials
- Tribology and Wear Analysis
- Polymer Surface Interaction Studies
- Advanced Computational Techniques and Applications
- Face recognition and analysis
- Power System Optimization and Stability
- RFID technology advancements
- Distributed Control Multi-Agent Systems
- Advanced Steganography and Watermarking Techniques
- Inorganic Chemistry and Materials
- Photopolymerization techniques and applications
- Maritime Navigation and Safety
Korea Advanced Institute of Science and Technology
2020-2023
Dongseo University
2007-2014
Colorless, transparent polymer thin films with n > 1.9 were prepared through vapor deposition polymerization of elemental sulfur.
High refractive index (RI) thin films are of critical importance for advanced optical devices, and the high polymers (HRIPs) constitute an interesting class materials RI due to low cost, good processability, light weight, flexibility. However, HRIPs have yet realize their full potential in film applications relatively RI, strong absorption blue region, limited formation methods such as rapid vitrification. Herein, we report a development new HRIP generated through one-step vapor-phase...
We herein report the preparation of high refractive index polymers (HRIPs) with enhanced thermal stability from copolymerization S8 and divinylbenzene (DVB) in a single step through sulfur chemical vapor deposition (sCVD). Varying process temperature sCVD allowed for series content which, comparison to previously reported sulfur-derived similar compositions, displayed significantly solvent resistance, glass transition (Tg), attributed absence long polysulfide chains polymer matrix. The...
Abstract The lithium metal anode is notoriously unstable and reactive to electrolytes, forming brittle solid‐electrolyte interphase (SEI) layers with uneven distribution, exacerbating Li dendrites that ultimately limit the battery life. Here, this work passivates electrolyte‐swellable polymer nanolayers deposited monolithically by initiated chemical vapor deposition (iCVD) reinforce native SEI stabilize their interface. 100 nm iCVD poly(dimethylaminomethyl styrene) (pDMAMS) layer swelled...
The commercial use of lithium–sulfur (Li–S) batteries is hampered by the shuttle phenomenon in cathodes and uncontrolled growth Li dendrites anodes. Designing functional material-coated separators gaining importance effort to tackle these issues both electrodes simultaneously. Here, an initiated chemical vapor deposition (iCVD) technique introduced Li–S for first time homogeneously deposit a polyvinylimidazole (pVIDZ) nanolayer on separator. An ultrathin ultralight-weight polymer coating...
High sulfur content polymers (HSCPs) are regarded as promising materials for infrared (IR) optics, especially the long-wave IR range, due to intrinsic properties of sulfur, but poor thermal stability HSCPs limits their reliable utilization in wider applications. We herein present a new HSCP, poly(sulfur-co-hexavinyl disiloxane) (pSHVDS), prepared directly from elemental through vapor chemical deposition (sCVD). By employing hexavinyl disiloxane (HVDS) comonomer with high functionality (f =...
Abstract Infrared (IR) polarizer is essential for thermal imaging applications such as mobility and military operations. High‐sulfur‐containing polymers have emerged promising candidates IR polarizers due to their mid‐wave (MWIR) transparency, addressing the limitations of inorganic materials, including brittleness high cost. However, poor stability limited range restrict applicability. This study introduces a glassy based on poly(sulfur‐co‐hexavinyl disiloxane) (pSHVDS), highly crosslinked...
Abstract Despite their capability, sub‐10 nm periodic nano‐patterns formed by strongly segregating block copolymer (BCP) thin films cannot be easily oriented perpendicular to the substrate due huge surface energy differences of constituent blocks. To produce nano‐patterns, interfacial energies both and free interfaces should controlled precisely induce non‐preferential wetting. Unfortunately, high‐performance modification layers are challenging design, different kinds methods must devised...
Smart Phone devices offer convenience for users, but present a new set of security issues due to loss or malicious code. In this paper, mobile cloud system environment is used with existing smart phones in an attempt solve the problems banking environment. order prevent financial damages personal information leakage by code, computing service that provides control and protection ensures individual authentication used. Existing ID / Password certificate, way phone dual password scheme using...
The development of internet and new technology has been growing continuously, smartphone is now a necessary device that great impact on users in various ways. Internet smart devices have gained their success fields provided conveniences to all types users. flow data seen as part the devices. Since large amount rely for own purposes, it then become big vulnerable target attackers. In this paper, design elliptic curve cryptography-based authentication using QR Code proposed. It mainly focuses...
유비쿼터스 컴퓨팅 기술과 헬스케어 기술이 접목되어 시간과 장소에 구애받지 않고, 지속적인 건강관리가 가능한 u-헬스케어 급부상하고 있으며, 한국의 최첨단 정보 환경을 기반으로 하여 향후 급증할 의료수요에 대처하기 위한 기반기술이 절실한 실정이다. 특히, 분야에서 다루는 정보는 주로 건강이나 생명과 밀접한 관계가 있는 관련 정보로서 극히 개인적인 사항을 포함한다. 서비스가 보안 및 프라이버시 측면에서 많은 취약점과 위협이 존재한다는 점을 볼 때, 데이터 보호를 기술적 대안이 기본적으로 요구된다. 이에 본 논문에서는 안전한 시스템을 위해 센서모듈을 설계 제작하고, USN의 안전성 NLM-128 알고리즘을 TinyOS상에서 소프트웨어적으로 구현하여 USN 센서노드에 탑재하였다. 그리고 알고리즘에 고속 병렬형 PS-LFSR을 적용하여 암호화 시간을 단축 시켰다. 응용을 보안센서노드는 환자의 몸에 부착되어 각종 생체 신호를 계측할 수 계측된 생체신호들은 무선메쉬네트워크(Wireless...
In this paper, design and Implementation of single antenna RFID Shelf for FIFO management marine materials, propose a as one effective solution the problem. The goals proposed system are follows: cost saving, data validation. Cost problem occurs by use many readers. Data problems in steel structure is generated radio wave (RFID). addition, material from system, expected to be used information vessel system. Through System, it systematic efficient business processes
Lithium Metal Anodes In article number 2203818, Sung Gap Im, Il-Doo Kim, and co-workers present an innovative approach to stabilize lithium metal anodes using electrolyte-swollen solvogel. The solvogel, synthesized on the through initiated chemical vapor deposition process, accommodates native solid-electrolyte interphase offers mechanical reinforcement. This effectively suppresses dendrite growth achieves a record-high transference battery cycle life.
최근 소셜 네트워크 서비스(Social Network Service, SNS)에 대한 사회적 인식과 관심이 높아지면서 이것이 미치는 영향과 파장에 연구와 이를 이용한 다양한 전략들이 속속 등장하고 있다. 본 논문에서는 센서를 사용할 수 있는 피지컬 컴퓨팅 환경에서의 SNS와의 연동 방법을 구성하고 그 중 오픈소스 환경인 아두이노와 센서들을 Open API를 제공하는 트위터와의 연동을 통해 의사표현에 제약이 장애인들을 위해 이 기술이 사용될 있음을 제안하였다. 각종 센서에서 받아오는 값을 이용해 트위터와 하여 메시지를 전송하는 방식으로 구성하였다. In recent years, social awareness and concern about the SNS is getting a lot many researches on impact of variety strategies using have emerged one after another. this paper, we explain...