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Nitric oxide removal from flue gas coupled with the Fe^(Ⅱ)EDTA regeneration by ultraviolet irradiation

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Chinese Journal of Chemical Engineering 2024年第4期68卷 133-143页

作者： Yuan Xu ziwei Liu Ying Dai Jinbo ouyang Zhuyao Li Yuling Zhu Jianhua Ding Feiqiang He School of Chemistry and Materials Science East China University of TechnologyNanchang 330013China

During wet complexation denitrification of flue gas,Fe^(Ⅱ)EDTA regeneration,also known as reducing Fe^(Ⅱ)EDTA and Fe^(Ⅱ)EDTA-nitric oxide(NO)to Fe^(Ⅱ)EDTA,is *** this paper,ultraviolet(UV)light was used for the first time to reduce Fe^(Ⅱ)*** experimental result demonstrated that Fe^(Ⅱ)EDTA-NO reduction rate increased with UV power increasing,elevated temperature,and initial Fe^(Ⅱ)EDTA-NO concentration ***^(Ⅱ)EDTA-NO reduction rate increased first and then decreased as pH value increased(2.0-10.0).Fe^(Ⅱ)EDTA-NO reduction with UV irradiation presented a first order reaction with respect to Fe^(Ⅱ)*** with other Fe^(Ⅱ)EDTA regeneration methods,Fe^(Ⅱ)EDTA regeneration with UV show more superiority through comprehensive consideration of regeneration rate and ***,NO absorption experiment by Fe^(Ⅱ)EDTA solution with UV irradiation confirmed that UV can significantly promote the NO removal performance of Fe^(Ⅱ)*** oxygen concentration(3%(vol))and acidic environment(pH=4)was favorable for NO *** UV power increasing as well as temperature decreasing,NO removal efficiency *** addition,the mechanism research indicates that NO from flue gas is mostly converted to NO_(2)-,NO_(3)-,NH_(4)^(+),N_(2),and N_(2)O with Fe^(Ⅱ)EDTA absorption liquid with UV *** strengthens NO removal in Fe^(Ⅱ)EDTA absorption liquid by forming a synergistic effect of ***,compared with NO removal methods with Fe^(Ⅱ)EDTA,Fe^(Ⅱ)EDTA combined UV system shows prominent technology advantage in terms of economy and secondary pollution.

关键词： Fe^(II)EDTA Ultraviolet Flue gas Nitric oxide Regeneration Absorption

Ultrastable in-situ silver nanoparticle dressing for effective prevention and treatment of wound infection in emergency

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Engineered Regeneration 2024年第1期5卷 111-123页

作者： Wei Wang ziwei Hu Wanying Mo Min ouyang Shihao Lin Xiang Li Chengxinqiao Wang Feng Yu Yupeng Wang Dongfang Zhou Key Laboratory of Mental Health of the Ministry of Education NMPA Key Laboratory for Research and Evaluation of Drug Metabolism&Guangdong Provincial Key Laboratory of New Drug ScreeningSchool of Pharmaceutical SciencesSouthern Medical UniversityGuangzhou 510515China Institute of Otolaryngology Head and neck surgery Guangzhou Red Croee Hospital of Jinan UniversityGuangzhou 510282China c Department of Orthopaedics and Traumatology Zhujiang HospitalSouthern Medical UniversityGuangzhou 510282China

The use of antibacterial dressings is crucial in the prevention and treatment of wound infection in emergency ***,the efficacy of dressings is compromised by long-term storage or exposure to harsh ***,an ultrastable in-situ silver nanoparticle dressing(AgSNP@CD)was prepared for effective prevention and treatment of wound infection in *** fabrication process of AgSNP@CD is simple,suitable for large-scale *** to the strong interaction between the in-situ synthesized AgNPs and the cotton fabric,AgSNP@CD owned remarkable stability,thus retaining its antimicrobial efficacy even after long-term storage(up to 2 years)and under extreme conditions(damp heat,low temperatures,low-oxygen,water immersion,acid-alkali erosion).Both in vitro and in vivo results demonstrated the extraordinary antibacterial efficacy and stability of AgSNP@CD,facilitating infection prevention and wound healing in extreme *** particular,AgSNP@CD exhibited a superior treatment effect on severe bacteria-infected trauma and can prevent the occur-rence of sepsis *** exceptional stability and antibacterial efficacy of AgSNP@CD under complex and extreme conditions make it a well-suited dressing strategy for the prevention and treatment of wound infection in emergency.

关键词： Bacteria-infected wounds Silver nanoparticle dressing Ultra stability Infection prevention In emergency

Fabrication of 3D air-core MEMS inductors for very-highfrequency power conversions

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Microsystems & Nanoengineering 2018年第1期4卷 509-517页

作者： Hoa Thanh Le Io Mizushima Yasser Nour Peter Torben Tang Arnold Knott ziwei ouyang Flemming Jensen Anpan Han National Center for Micro-and Nanofabrication DanchipTechnical University of Denmark2800 Kongens LyngbyDenmark Department of Electrical Engineering Technical University of Denmark2800 Kongens LyngbyDenmark IPU Nils Koppels Allé2800 Kongens LyngbyDenmark

We report a fabrication technology for 3D air-core inductors for small footprint and very-high-frequency power *** process is scalable and highly generic for fabricating inductors with a wide range of geometries and core *** demonstrate spiral,solenoid,and toroidal inductors,a toroidal transformer and inductor with advanced geometries that cannot be produced by wire winding *** inductors are embedded in a silicon substrate and consist of through-silicon vias and suspended *** inductors fabricated with 20 and 25 turns and 280-350μm heights on 4-16 mm2 footprints have an inductance from 34.2 to 44.6 nH and a quality factor from 10 to 13 at frequencies ranging from 30 to 72 *** air-core inductors show threefold lower parasitic capacitance and up to a 140% higher-quality factor and a 230% higher-operation frequency than silicon-core inductors.A 33 MHz boost converter mounted with an air-core toroidal inductor achieves an efficiency of 68.2%,which is better than converters mounted with a Si-core inductor(64.1%).Our inductors show good thermal cycling stability,and they are mechanically stable after vibration and 2-m-drop tests.

关键词： MEMS inductor PwrSoC TSVs very high frequency 3D

考虑寄生电感的SiC MOSFET半桥电路串扰峰值预测方法

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太阳能学报 2023年第1期44卷 16-23页

作者：杜明星边维国欧阳紫威天津市复杂系统控制理论及应用重点实验室(天津理工大学) 天津300384 丹麦技术大学电气工程系灵比2800 Kgs

针对光伏并网逆变器中的串扰问题,提出一种考虑寄生电感影响的非开尔文封装SiC MOSFET串扰峰值预测算法。以TO-247-3封装SiC MOSFET构成的半桥电路为研究对象,首先分析各个阶段的串扰电压数学模型,并推导串扰电压的微分表达式;其次提出... 详细信息

针对光伏并网逆变器中的串扰问题,提出一种考虑寄生电感影响的非开尔文封装SiC MOSFET串扰峰值预测算法。以TO-247-3封装SiC MOSFET构成的半桥电路为研究对象,首先分析各个阶段的串扰电压数学模型,并推导串扰电压的微分表达式;其次提出串扰峰值的预测算法,建立预测峰值所需参数的数学模型;最后搭建实验平台,验证理论的正确性和算法的有效性,为设计光伏并网逆变器的驱动和保护电路提供参考依据。

关键词：碳化硅 MOSFET 串扰并网逆变器寄生电感半桥电路

MEMS inductor fabrication and emerging applications in power electronics and neurotechnologies

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Microsystems & Nanoengineering 2021年第4期7卷 1-22页

作者： Hoa Thanh Le Rubaiyet I.Haque ziwei ouyang Seung Woo Lee Shelley I.Fried Ding Zhao Min Qiu Anpan Han The Rowland Institute at Harvard Harvard UniversityCambridgeMAUSA Department of Mechanical Engineering Technical University of DenmarkLyngbyDenmark Department of Electrical Engineering Technical University of DenmarkLyngbyDenmark Department of Neurosurgery Massachusetts General HospitalHarvard Medical SchoolBostonMAUSA Boston VA Healthcare System BostonMAUSA Key Laboratory of 3D Micro/Nano Fabrication and Characterization of Zhejiang Province School of EngineeringWestlake UniversityHangzhouChina Institute of Advanced Technology Westlake Institute for Advanced StudyHangzhouChina

MEMS inductors are used in a wide range of applications in micro-and nanotechnology,including RF MEMS,sensors,power electronics,and *** technologies set the boundary conditions for inductor design and their electrical and mechanical *** review provides a comprehensive overview of state-of-the-art MEMS technologies for inductor fabrication,presents recent advances in 3D additive fabrication technologies,and discusses the challenges and opportunities of MEMS inductors for two emerging applications,namely,integrated power electronics and *** the four top-down MEMS fabrication approaches,3D surface micromachining and through-substrate-via(TSV)fabrication technology have been intensively studied to fabricate 3D inductors such as solenoid and toroid in-substrate TSV *** 3D inductors are preferred for their high-quality factor,high power density,and low parasitic capacitance,in-substrate TSV inductors offer an additional unique advantage for 3D system integration and efficient thermal *** features make in-substrate TSV inductors promising to achieve the ultimate goal of monolithically integrated power *** another perspective,3D bottom-up additive techniques such as ice lithography have great potential for fabricating inductors with geometries and specifications that are very challenging to achieve with established MEMS ***,we discuss inspiring and emerging research opportunities for MEMS inductors.

关键词： inductor power lithography

计及热电耦合效应的SiC MOSFET阈值电压精确监测方法

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太阳能学报 2023年第2期44卷 445-452页

作者：杜明星信金蕾姚婉荣欧阳紫威天津市复杂系统控制理论及应用重点实验室(天津理工大学) 天津300384 天津中科华盈科技有限公司天津300300 丹麦技术大学电气工程系灵比2800 Kgs

在研究SiC MOSFET的阈值电压、体二极管电压、漏-源极通态电阻温度依赖性的基础上,分析偏压温度不稳定性(BTI)引起的V_(TH)的漂移规律,并探究其对温敏电参数(TSEPs)的影响规律。另外,在充分考虑温度和BTI对V_(TH)共同作用的影响下,提出... 详细信息

在研究SiC MOSFET的阈值电压、体二极管电压、漏-源极通态电阻温度依赖性的基础上,分析偏压温度不稳定性(BTI)引起的V_(TH)的漂移规律,并探究其对温敏电参数(TSEPs)的影响规律。另外,在充分考虑温度和BTI对V_(TH)共同作用的影响下,提出在小电流注入时使用体效应下的体二极管电压监测SiC MOSFET阈值电压的方法。该方法可在不同的结温(T_(j))下监测阈值电压,为校正其他TSEPs测量结温的准确性提供帮助。理论和实验结果证明了该方法的可行性。

关键词：碳化硅功率MOSFET 状态监测温敏电参数偏压温度不稳定性

一种并联SiC MOSFETs的静态均流方法

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太阳能学报 2023年第7期44卷 147-154页

作者：刘兴瑜杜明星尹金良欧阳紫威天津市复杂系统控制理论及应用重点实验室(天津理工大学) 天津300384 丹麦技术大学电气工程系灵比2800 Kgs

在光伏发电或风力发电等大电流应用场合,由于并联SiC MOSFETs功率源极寄生电感和漏极寄生电感的不匹配会导致静态电流的不平衡,该文提出一种用于并联SiC MOSFETs静态均流的方法。该文首先分析并解决因阈值电压不匹配造成的动态不平衡电... 详细信息

在光伏发电或风力发电等大电流应用场合,由于并联SiC MOSFETs功率源极寄生电感和漏极寄生电感的不匹配会导致静态电流的不平衡,该文提出一种用于并联SiC MOSFETs静态均流的方法。该文首先分析并解决因阈值电压不匹配造成的动态不平衡电流问题,然后在其基础上解决源极寄生电感不匹配造成的动态不平衡电流问题,最后在无阈值电压不匹配和源极寄生电感不匹配造成的动态不平衡电流的基础上解决漏极寄生电感不匹配造成的静态不平衡电流问题。最终,通过实验验证了该文所提出的静态均流方法的有效性。

关键词：碳化硅静态分析动态分析寄生电感均流

基于Jack仿真的飞机除冰舱人机工程设计与优化

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包装工程 2024年第4期45卷 49-57页

作者：欧阳霜平姚湘吕紫薇唐刚湘潭大学湖南湘潭411105 湖南第一师范学院长沙410205 长沙九十八号工业设计有限公司长沙410205

目的改善飞机除冰舱的操作环境,提高操作员的整体舒适度和工作效率。方法通过对飞机除冰舱作业流程的分析,确定操作员常见的操作姿态;使用Jack软件,对操作员可达域、可视域,以及舒适度进行仿真模拟分析。基于这些分析结果,对飞机除冰舱... 详细信息

目的改善飞机除冰舱的操作环境,提高操作员的整体舒适度和工作效率。方法通过对飞机除冰舱作业流程的分析,确定操作员常见的操作姿态;使用Jack软件,对操作员可达域、可视域,以及舒适度进行仿真模拟分析。基于这些分析结果,对飞机除冰舱的外形以及左右扶手台等部件进行针对性的设计优化。结果对优化设计方案分析后发现:操作员观察飞机、喷枪的视野盲区减小,常用操作手柄与开关按钮位于双手舒适可达范围内。结论通过人机工程仿真技术可准确预判飞机除冰舱存在的人机工程设计缺陷,提高了设计合理性,为人-机-环境总体设计提供了参考。

关键词：飞机除冰舱人因工程仿真技术适人性评价

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大学生情绪导向型机器宠物设计调查研究

设计 2021年第3期34卷 18-21页

作者：欧阳子薇高娃南京林业大学家居与工业设计学院

探索有助于调节大学生情绪的机器宠物设计原则,从设计角度为降低大学生心理压力、优化生活品质提供可行途径。调查分析国内外机器宠物、机器人情绪表达、大学生情绪引导产品等研究现状以及大学生的情绪状况及其对机器宠物的看法和期待,... 详细信息

探索有助于调节大学生情绪的机器宠物设计原则,从设计角度为降低大学生心理压力、优化生活品质提供可行途径。调查分析国内外机器宠物、机器人情绪表达、大学生情绪引导产品等研究现状以及大学生的情绪状况及其对机器宠物的看法和期待,据此归纳面向大学生群体的情绪导向型机器宠物设计方向、定位和设计关键点。总结大学生用户需求,提出了情绪导向型机器宠物的设计原则。为相关机器宠物设计提供调研参考,也为从设计角度解决大学生心理健康问题提供了可行方案。

关键词：机器宠物人机关系情绪导向大学生设计调查