http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Recent Advances in a-IGZO Thin Film Transistor Devices: A Short Review
Jingwen Chen,Fucheng Wang,Yifan Hu,조재웅,정여진,Duy Phong Pham,이준신 한국전기전자재료학회 2023 전기전자재료학회논문지 Vol.36 No.5
In recent years, the transparent amorphous oxide thin film transistor represented by indium-gallium-zinc-oxide (IGZO) has become the first choice of the next generation of integrated circuit control components. This article contributes an overview of IGZO thin-film transistors (TFTs), including their fundamental principles and recent advancements. The paper outlines various TFT structures and places emphasis on the fabrication process of the active layer. The result showed that the size of the active layer including the length-to-width ratio and the width could have a significant effect on the mobility. And the process of TFT could influence the crystal structure of IGZO thin film. Furthermore, the article presents an overview of recent applications of IGZO TFTs, such as their use in display drivers and TFT memories. At last, the future development of IGZO TFT is forecasted in this paper.
Pure Ultraviolet Emission from ZnO Quantum Dots-Based/GaN Heterojunction Diodes by MgO Interlayer
Cheng Chen,Renli Liang,Jingwen Chen,Jun Zhang,Shuai Wang,Chong Zhao,Wei Zhang,Jiangnan Dai,Changqing Chen 대한금속·재료학회 2017 ELECTRONIC MATERIALS LETTERS Vol.13 No.4
We demonstrate the fabrication and characterization of ZnO/GaNbasedheterojunction light-emitting diodes (LEDs) by using air-stableand solution-processable ZnO quantum dots (QDs) with a thin MgOinterlayer acting as an electron blocking layer (EBL). The ZnO QDs/MgO/p-GaN heterojunction can only display electroluminescence(EL) characteristic in reverse bias regime. Under sufficient reversebias, a fairly pure ultraviolet EL emission located at 370 nm derivingfrom near band edge of ZnO with a full width at half maximum(FWHM) of 8.3 nm had been obtained, while the deep-level emissionhad been almost totally suppressed. The EL origination andcorresponding carrier transport mechanisms were investigatedqualitatively in terms of photoluminescence (PL) results and energyband diagram.
Cheng Chen,Taotao Ding,Zhiqiang Qi,Wei Zhang,Jun Zhang,Juan Xu,Jingwen Chen,Jiangnan Dai,Changqing Chen 대한금속·재료학회 2018 ELECTRONIC MATERIALS LETTERS Vol.14 No.4
The periodically ordered ZnO nanorod (NR) arrays have been successfully synthesized via a hydrothermal approach on thesilicon substrates by templating of the TiO2ring deriving from the polystyrene (PS) nanosphere monolayer colloidal crystals(MCC). With the inverted MCC mask, sol–gel-derived ZnO seeds could serve as the periodic nucleation positions for thesite-specific growth of ZnO NRs. The large-scale patterned arrays of single ZnO NR with good side-orientation can be readilyproduced. According to the experimental results, the as-integrated ZnO NR arrays showed an excellent crystal quality andoptical property, very suitable for optoelectronic applications such as stimulated emitters and ZnO photonic crystal devices.
Zhenghao Huang,Fan Shen,Jingwen Chen,Bumin Xie,Xi Chen,Yang Zhao,Shuo Chen 대한부인종양학회 2024 Journal of Gynecologic Oncology Vol.35 No.2
Objective: Endometrial carcinoma (EC) is one of the most common gynecological malignanttumors. Our study showed that long non-coding RNA (lncRNA) linc01194 plays an importantrole in EC. We explored the mechanism of lncRNA linc01194 in EC. Methods: The expression of lncRNA linc01194 was detected in The Cancer Genome Atlasdatabase and starBase database. The potential targeted protein of linc01194 was predictedthrough the starBase database. To determine the role of linc01194 in EC, we downregulatedor upregulated the level of linc01194 in EC cell lines and analyzed the cell behaviors and thechanges of its potential target proteins. Results: The expression of linc01194 in EC tissues is higher than that in normal endometrialtissues. The knockdown of linc01194 inhibited the cell proliferation, invasion and migrationand promoted the apoptosis of EC cells, while overexpression of linc01194 promoted cellproliferation, invasion and migration and inhibited the apoptosis of EC cells. The starBasedatabase revealed that linc01194 could bind to insulin-like growth factor 2 binding protein 1(IGF2BP1). Previous results showed that in EC, IGF2BP1 could promote the expression of sex-determining region Y-box 2 (SOX2) by promoting the stability of SOX2 mRNA. Our resultsshowed that linc01194 regulate the expression of IGF2BP1 and SOX2. Conclusion: Linc01194 can promote the expression of downstream protein SOX2 throughbinding to IGF2BP1, thus promoting the occurrence and development of EC.
Yan Han,Jingwen Huang,C.S. Cai,Suren Chen,Xuhui He 한국풍공학회 2019 Wind and Structures, An International Journal (WAS Vol.29 No.4
Strong winds threaten the safety of vehicles on long-span bridges considerably, which could force traffic authorities to reduce speed limits or even close these bridges to traffic. In order to maintain the safe and economic operation of a bridge, a reasonable evaluation of the driving safety on that bridge is needed. This paper aims at carrying outdriving safety analyses for three types of vehicles on a long-span bridge in crosswinds by considering the aerodynamic interference between the bridge and the vehicles based on the wind-vehicle-bridge coupling vibration analysis. Firstly, CFD numerical simulations along with previously obtained wind tunnel testing results were used to determine the aerodynamic force coefficients of the three types of vehicles on the bridge. Secondly, the dynamic responses of the bridge and the vehicles under crosswinds were simulated, and based on those, the driving safety analyses for the three types of vehicles on the bridge were carried out for both cases considering and not considering the aerodynamic interference between the vehicles and the bridge. Finally, the effect of the aerodynamic interference on the safety of the vehicles was investigated. The results show that the aerodynamic interference between the bridge and the vehicles not only affects the accident critical wind speed but also the accident type for all three types of vehicles. Such effects are also different for each of the three types of vehicles being studied.
Proline Enhances Torulopsis glabrata Growth during Hyperosmotic Stress
Sha Xu,Jingwen Zhou,Liming Liu,Jian Chen 한국생물공학회 2010 Biotechnology and Bioprocess Engineering Vol.15 No.2
This study investigated that the importing of compatible solute proline could enhance the growth of the yeast Torulopsis glabrata under hyperosmotic stress. Osmolarity progressively increased from 860 to 2,603mOsmol/kg by accumulation of sodium pyruvate in the culture broth, leading to a significant decrease in cell growth. When 1.0 g/L of proline as a compatible solute was added to the culture medium, it was imported and enhanced cell growth by 59.0% at 2,603 mOsmol/kg. By addition of proline during pyruvate production, the concentration,productivity, and yield of pyruvate increased 22.1, 38.4, and 14.3%, respectively. These results suggested that T. glabrata can import proline as an osmoprotectant against high osmotic stress, thus enhance pyruvate productivity. The improvement of yeast growth and viability under hyperosmotic stress by the addition of proline provided an alternative approach to enhance the organic acids production by yeast.
Approaches to Improve Mobility and Stability of IGZO TFTs: A Brief Review
Zhong Pan,Yifan Hu,Jingwen Chen,Fucheng Wang,정여진,Duy Phong Pham,이준신 한국전기전자재료학회 2024 Transactions on Electrical and Electronic Material Vol.25 No.4
Among metal oxide material TFTs, IGZO TFTs are highly regarded for their exceptionally high mobility, exceeding 10 cm²/V·s, remarkable transparency of more than 80%, and their adaptable low-temperature fabrication techniques. High-performance displays operating at refresh rates of up to 144 Hz and undergoing millions of device switches demand IGZO TFTs with mobility exceeding 20 cm²/V·s and higher stability against impulse stress. The eff ect of IGZO material composition on device stability and recent strategies to promote the mobility and stability of IGZO TFT by modifying the transistor structure, preparation process, and post-processing techniques to reduce V O have been discussed. The paper describes the application of IGZO TFTs in flexible electronics.
Single Low-Light Ghost-Free Image Enhancement via Deep Retinex Model
( Yan Liu ),( Bingxue Lv ),( Jingwen Wang ),( Wei Huang ),( Tiantian Qiu ),( Yunzhong Chen ) 한국인터넷정보학회 2021 KSII Transactions on Internet and Information Syst Vol.15 No.5
Low-light image enhancement is a key technique to overcome the quality degradation of photos taken under scotopic vision illumination conditions. The degradation includes low brightness, low contrast, and outstanding noise, which would seriously affect the vision of the human eye recognition ability and subsequent image processing. In this paper, we propose an approach based on deep learning and Retinex theory to enhance the low-light image, which includes image decomposition, illumination prediction, image reconstruction, and image optimization. The first three parts can reconstruct the enhanced image that suffers from low-resolution. To reduce the noise of the enhanced image and improve the image quality, a super-resolution algorithm based on the Laplacian pyramid network is introduced to optimize the image. The Laplacian pyramid network can improve the resolution of the enhanced image through multiple feature extraction and deconvolution operations. Furthermore, a combination loss function is explored in the network training stage to improve the efficiency of the algorithm. Extensive experiments and comprehensive evaluations demonstrate the strength of the proposed method, the result is closer to the real-world scene in lightness, color, and details. Besides, experiments also demonstrate that the proposed method with the single low-light image can achieve the same effect as multi-exposure image fusion algorithm and no ghost is introduced.