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Chunlan Wang,Yebo Jin,Yuqing Li,Gangying Guo,Yongle Song,Hao Huang,Aolin Wang,Han He 대한금속·재료학회 2023 ELECTRONIC MATERIALS LETTERS Vol.19 No.4
Amorphous InGaZnO (a-InGaZnO) thin film transistors (TFTs) with stability and low-temperature deposition are importantchallenges for their application in flexible electronics. Herein, a-InGaZnO films were successfully obtained throughout thewhole process in the room-temperature sputtering system. An intermediate nitrogen treatment a-InGaZnO film link contributedto high performance a-InGaZnO TFTs. The current switching ratio of the optimal nitrogen treatment transistor is closeto 107,the field-effect mobility (μFE) is 11.7 cm2/Vs and threshold voltage (VTH) is − 0.12 V, respectively. And the 4-daythreshold voltage offset (ΔVTH) is reduced from 12.98 to 4.92 V. The improved electrical properties may be attributed to thereduction of defect concentration and average interfacial trap density due to nitrogen occupation of oxygen vacancies (VO).
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Research on Self-adaptive Reinforcement Plug-in of Prefabricated Concrete Component based on BIM
Fubin Zhang,Yebo Shen,Li Tan,Ruoyu Jin,Yu Han 대한토목학회 2024 KSCE Journal of Civil Engineering Vol.28 No.7
Prefabricated concrete structure has the advantages of faster construction, labor saving, pollution reduction, and enhanced quality. It has been more widely adopted in recent years, but the cost is usually higher at its design or pre-construction stages due to component disassembly and detailed design. Building information modeling (BIM) could improve the design efficiency and reduce design cost, hence promoting the development of prefabricated buildings. However, due to the complexity of reinforcement modeling, existing BIM authoring tools still have low operation efficiency. Even though the latest technologies can achieve rapid reinforcement modeling, it often fails to realize the adaptive adjustment of reinforcement. In the case of changes in prefabricated components, the internal reinforcement needs to be remodeled, with reduced efficiency and increased the risk of errors. Therefore, this research proposes a self-adaptive reinforcement plug-in based on Autodesk Revit for prefabricated concrete components. The research achieved fast modeling and adaptive reinforcement. Firstly, the parametric modeling of column, beam and slab components was completed by using Excel to drive family parameters. Then, by adopting the Revit Application Program Interface (API), programming language C# and programming platform Visual Studio (VS), the secondary development within Revit achieved the rapid adaptive configuration of reinforcement. At the same time, the user interface was developed based on Windows Presentation Foundation (WPF), and the Ribbon function was adopted to expand the Revit function area to realize the visual regulation of key parameters of reinforcement, such as the reinforced type, cover thickness, spacing, and reinforcement ratio, etc. Finally, the program was developed by integrating different modules and plug-ins were established. A typical prefabricated frame structure office building was used as a case study to test the self-adaptive reinforcement plug-in. The results showed that the modeling efficiency of the developed plug-in was nearly 3 times higher than that of manual modeling. After changing the section size parameters of the members, the reinforcement could successfully achieve self-adaptive adjustment, hence significantly saving the modeling steps and time. The developed self-adaptive reinforcement plug-in contributed to the fully interoperable and multi-disciplinary coordination in prefabricated building design.
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The NAC transcription factor OsSWN1 regulates secondary cell wall development in Oryza sativa
Maofeng Chai,Maria Bellizzi,Caixia Wan,Zhifang Cui,Yebo Li,Guo-Liang Wang 한국식물학회 2015 Journal of Plant Biology Vol.58 No.1
Rice, as a major crop in the world, produces huge agronomic biomass residues besides food, which consist of cellulose, hemicelluloses and lignin. Many master regulators of secondary wall synthesis were identified in the model plant Arabidopsis. In this study, we investigated the function of a NAC (NAM, ATAF, and CUC2) transcription factor related to secondary cell wall biosynthesis, which is highly expressed in rice sclerenchyma tissue and is named OsSWN1. Our results showed that engineering of OsSWN1 could exhibit multiple features regulated to agronomic traits and bioenergy research. Over-expression of OsSWN1 caused an erect-leaf and enclosed-flower phenotype. Secondary cell wall-related genes were actively expressed in transgenic plants with obvious ectopic lignin deposition in the leaf collar, while increased lignin content and decreased the sugar yield correspondingly. In addition, down-regulation of OsSWN1 expression levels decreased lignin content and increased the sugar yield in transgenic plants. Bioinformatics analysis revealed that OsSWN1-like genes are highly conserved in switchgrass and sorghum, suggesting a possibility of manipulating the expression level of the OsSWN1 orthologs in the bioenergy crops for biofuel production.
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