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Journal of Advanced Ceramics 2024年第5期13卷 590-601页

作者： Hui Chen Yulei zhang Yanqin Fu Wenhan Gai Junhao Zhao haohui zhang Shaanxi Key Laboratory of Fiber Reinforced Light Composite Materials Northwestern Polytechnical UniversityXi’an 710072China Henan Key Laboratory of High Performance Carbon Fiber Reinforced Composites Institute of Carbon Matrix CompositesHenan Academy of SciencesZhengzhou 450046China

Ultra-high-temperature ceramic nanowires have shown increasing potential for use as thermal structural ***,novel single-crystal Hf_(0.5)Ta_(0.5)C solid solution nanowires were synthesized and incorporated with a HfC coating to construct a robust structure with Hf_(0.5)Ta_(0.5)C solid solution nanowires uniformly distributed and interconnected within the *** novel Hf_(0.5)Ta_(0.5)C solid solution nanowires could effectively hinder crack propagation through crack tip pinning and crack *** mechanism substantially enhanced the elastic modulus and fracture toughness of the HfC coating by 53.29%and 59.67%,*** toughened HfC coating displayed superior fracture toughness and good interfacial binding strength with the substrate to resist severe oxidation and ***,the high thermal conductivity of the toughened HfC coating promoted heat ***,in comparison to the pure HfC coating,the toughened HfC coating displayed smaller mass and linear ablation rates of−0.35 mg·s^(−1)and−0.46μm·s^(−1),which decreased by 39.66%and 36.98%,*** work not only simultaneously enhances the mechanical properties and ablation resistance of HfC-coated carbon/carbon(C/C)composites but also provides novel prospects for advanced ultrahigh-temperature ceramic nanowires under extreme conditions.

关键词： Hf_(x)Ta_(1−x)C solid solution nanowires HfC coating carbon/carbon(C/C)composites mechanical performance ablationresistance

Large-area superconducting nanowires fabricated based on laser exposure on photoresist

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Nano Research 2024年第9期17卷 8220-8225页

作者： Han Zhou Shangqing Li Yicong Huang Wenqian Liu haohui zhang Yao Wu Wenzhi zhang Enhua Chen Chaoyun zhang Xiaoliang Wang Daqian Liu Jianxin Lin Qingdao Innovation and Development Center of Harbin Engineering University Qingdao 266000China College of Intelligent systems and Engineering Harbin Engineering UniversityHarbin 150000China

To realize large-scale micro/nanofabrication process in superconducting devices,the nano laser direct writing(NLDW)as a potential tool was *** this paper,thermal effect induced laser-matter(superconducting film)interaction based on laser direct writing on Nb films and laser exposure on photoresist were investigated by simulation and *** avoid nanoscale thermal effect on superconducting films,large-scale superconducting nanoarrays with the area up to 100μm×100μm based on laser exposure on photoresist were *** with laser direct writing on superconducting films,which lead to the degradation of superconducting performance such as critical current,transition temperature,the superconducting nanoarrays based on laser exposure on photoresist maintain excellent superconducting performance without *** that,by further optimizing the process parameters and the thickness of photoresist,the nanowires with the width down to nanometers are *** with the traditional electron beam and ion beam process,to some extent,the nanowires fabrication process based on NLDW provides a more efficient and cost-effective path for the fabrication of large-area superconducting devices/circuits.

关键词： nano laser direct writing(NLDW) superconducting nanowire arrays superconducting devices light-matter interaction

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劳动精神融入大学生思想政治教育的三重维度

林区教学 2024年第1期 10-13页

作者：王红涛张好徽浙江同济科技职业学院杭州311231

劳动精神是中华优秀传统文化的重要组成部分,也是新时代大学生应具有的时代精神品质。劳动精神融入大学生思想政治教育有其理论维度,在其价值体现上,是大学生创新发展的内在动力,是大学生敬业精神的具体展现,是大学生就业竞争力提升的... 详细信息

劳动精神是中华优秀传统文化的重要组成部分,也是新时代大学生应具有的时代精神品质。劳动精神融入大学生思想政治教育有其理论维度,在其价值体现上,是大学生创新发展的内在动力,是大学生敬业精神的具体展现,是大学生就业竞争力提升的关键要素,是理解科学幸福价值观的来源。而要实现这一价值,需要从实践维度思考,从融进校园文化、融进优良家风、融进高校教育管理机制视角进行思考。

关键词：劳动精神大学生思想政治教育

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Hyperelastic model for polyacrylamide‑gelatin double network shape‑memory hydrogels

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Acta Mechanica Sinica 2021年第5期37卷 748-756,I0001页

作者： Yifu Chen haohui zhang Jiehao Chen Guozheng Kang Yuhang Hu George W Woodruff School of Mechanical Engineering Georgia Institute of TechnologyAtlantaGA 30332USA Applied Mechanics and Structure Safety Key Laboratory of Sichuan Province School of Mechanics and EngineeringSouthwest Jiaotong UniversityChengdu 610031China School of Chemical and Biomolecular Engineering Georgia Institute of TechnologyAtlantaGA 30332USA

A shape-memory double network hydrogel consists of two polymer networks:a chemically crosslinked primary network that is responsible for the permanent shape and a physically crosslinked secondary network that is used to fix the temporary *** formation/melting transition of the secondary network serves as an effective mechanism for the double network hydrogel’s shape-memory *** the crosslinks in the secondary network are dissociated by applying an external stimulus,only the primary network is left to support the *** the secondary network is re-formed by removing the stimulus,both the primary and secondary networks support the *** the past,models have been developed for the constitutive behaviors of double network hydrogels,but the model of shape-memory double network hydrogels is still *** work aims to build a constitutive model for the polyacrylamide-gelatin double network shape-memory hydrogel developed in our previous *** model is first calibrated by experimental data of the double network shape-memory hydrogel under uniaxial loading and then employed to predict the shape-fixing performance of the *** model is also implemented into a three-dimension finite element code and utilized to simulate the shape-memory behavior of the double network hydrogel with inhomogeneous deformations related to applications.

关键词： Shape-memory hydrogel Double network Constitutive model Finite element simulation

Estimation of Postmortem Interval Using Attenuated Total Reflectance:Fourier Transform Infrared Spectroscopy in Adipose Tissues

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Journal of Forensic Science and Medicine 2019年第1期5卷 7-12页

作者： haohui zhang Qi Wang Kai zhang Ruina Liu Shuanliang Fan Zhenyuan Wang Department of Forensic Pathology Xi’an Jiaotong University School of MedicineXi’anChina Department of Forensic Medicine Chongqing Medical UniversityChongqingChina

Estimation of postmortem interval(PMI)is vitally important in forensic *** many studies have examined the chemical changes of various tissues over time,no reports using spectroscopic methods in adipose tissue are *** this study,attenuated total reflectance-Fourier transform infrared(ATR-FTIR)spectroscopy was utilized to collect comprehensive biochemical information from human adipose tissues in vitro at different ***,mice were used as samples for in vivo experiments for more detailed studies on ***,partial least squares(PLS)model for PMI estimation was established based on the acquired spectral dataset of mouse *** spectral variable associated with C=O arising from lipids and free fatty acids was most susceptible to ***,the PLS model appeared to achieve a satisfactory prediction with a root mean square error of cross‑validation of 1.78 days,and the reliability of the model was determined in an external validation set with a root mean square error of prediction of 1.87 *** study shows the possibility of application of ATR-FTIR methods in PMI estimation using adipose tissue.

关键词： Adipose tissue attenuated total reflectance-Fourier transform infrared chemometrics postmortem interval

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超高层大体积筏板混凝土调温系统及施工方法

建筑机械化 2024年第9期45卷 132-135页

作者：肖文达赖明松李文伟王剑柄廖宏卿张浩晖中国建筑第二工程局有限公司广东广州510220

针对超高层建筑中大体积筏板混凝土施工过程中温控难点,深入探讨一种创新的超高层大体积筏板混凝土调温施工技术。这种技术突破了传统施工方法的局限,其中传统方法通常将大体积承台、筏板的钢管支撑体系与混凝土内部预埋冷却水管的降温... 详细信息

针对超高层建筑中大体积筏板混凝土施工过程中温控难点,深入探讨一种创新的超高层大体积筏板混凝土调温施工技术。这种技术突破了传统施工方法的局限,其中传统方法通常将大体积承台、筏板的钢管支撑体系与混凝土内部预埋冷却水管的降温措施作为2个独立的系统来处理。本文介绍的混凝土冷却体系,实现了钢管支撑与冷却降温功能的有机结合,形成了一个高度集成化的施工解决方案。这一体系不仅简化了施工流程,而且通过模数化设计,能够快速适应不同尺寸的大体积混凝土需求,实现快速搭设和组装。

关键词：大体积筏板混凝土调温集成化系统模数化设计

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Estimation of the age of human semen stains by attenuated total reflection Fourier transform infrared spectroscopy:a preliminary study

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Forensic Sciences Research 2020年第2期5卷 119-125页

作者： Shuai Zha Xin Wei Ruoxi Fang Qi Wang Hancheng Lin Kai zhang haohui zhang Ruina Liu Zhouru Li Ping Huang Zhenyuan Wang Department of Forensic Pathology Xi’an Jiaotong University School of MedicineXi’anChina Department of Forensic Medicine Chongqing Medical UniversityChongqingChina Department of Forensic Medicine Xuzhou Medical UniversityXuzhouChina Department of Forensic Pathology Academy of Forensic ScienceShanghaiChina

Semen stain is one of the most important biological evidence at sexual crime *** estimation of human semen stains plays an important role in forensic work,and it is rarely studied due to lack of well-established *** this study,the technique called attenuated total reflection Fourier transform infrared spectroscopy(ATR-FTIR)coupled with advanced chemometric methods was employed to determine the age of semen stains on three different substrates:glass slides,tissues and fabric made of regenerated cellulose fibres up to 6 *** least squares regression(PLSR)was used in conjunction with spectral analysis for age estimation,and the results generated high R2 values(cross-validation:0.81,external validation:0.74)but a narrow margin of error for root mean square error(RMSE)(RMSE of cross-validation:0.77 d,RMSE of prediction:1.02 d).Additionally,our results indicated the robustness of PLSR model was not weaken by the influence of different substrates in this *** results indicate that ATR-FTIR,combined with chemometric methods,shows great potential as a convenient and efficient tool for age estimation of semen ***,the method could be applied to routine forensic investigations in the future.

关键词： Forensic sciences forensic medicine semen stain age estimation spectroscopy Fourier transform infrared chemometrics

Acceptor-planarized typeⅠphotosensitizer for lipid droplet-targeted two-photon photodynamic therapy by ferroptosis

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Science China Chemistry 2024年第7期67卷 2392-2402页

作者： Jie Sha Weimin Liu Jiasheng Wu Yanping Wang Xuewei Li haohui Ren Zhi Pang Wenjun zhang Chun-Sing Lee Pengfei Wang Key Laboratory of Photochemical Conversion and Optoelectronic Materials CityU-CAS Joint Laboratory of Functional Materials and DevicesTechnical Institute of Physics and ChemistryChinese Academy of SciencesBeijing 100190China School of Future Technology University of Chinese Academy of SciencesBeijing 100049China Center of Super-Diamond and Advanced Films&Department of Materials Science and Engineering City University of Hong KongHong KongChina

Two-photon photodynamic therapy(TP-PDT)has garnered significant attention because of its excellent depth of tissue penetration and high spatiotemporal ***,the limited targeting ability and oxygen dependency of photosensitizers(PSs)significantly hinder the effectiveness of photodynamic therapy in hypoxic tumor ***,we designed and synthesized two lipid droplet(LD)-targeted two-photon PSs(TBPCP and TBCP)by reducing benzene rings to achieve“acceptor planarization”.Notably,acceptor planarization not only enhanced the intramolecular charge transfer but also transferred the photochemical reaction from typeⅡ(TBPCP)to typeⅠ(TBCP).Under the irradiation of 940 nm femtosecond pulsed laser,TBPCP and TBCP showed bright two-photon-excited fluorescence and excellent LD targeting in living *** TBPCP(typeⅡPS),the outstanding TP-PDT efficacy of TBCP(typeⅠPS)under hypoxic conditions could be obtained in both cellular experiments and multicellular tumor spheroids(MCTS)***,both TBPCP and TBCP could induce the lipid peroxidation in the typeⅠor typeⅡPDT due to the location of LD,depleting GSH and inactivating GPX4 to induce nonprogrammed ferroptosis in cells.

关键词： two-photon photodynamic therapy lipid droplet targeting acceptor planarization hypoxia tumor ferroptosis

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提高“信号与系统”教学质量的探索与实践

中国电力教育 2010年第33期 104-105页

作者：张昊慧淮阴师范学院物理与电子电气工程学院东南大学信息科学与工程学院

为了提高"信号与系统"课程的教学质量,笔者根据淮阴师范学院物理与电子电气工程学院学生的实际情况,从教学内容,课堂的教学方法、教学手段和实验、实践等方面对"信号与系统"课程的教学进行了探索与实践。实践证明这些方法有助于提高教... 详细信息

为了提高"信号与系统"课程的教学质量,笔者根据淮阴师范学院物理与电子电气工程学院学生的实际情况,从教学内容,课堂的教学方法、教学手段和实验、实践等方面对"信号与系统"课程的教学进行了探索与实践。实践证明这些方法有助于提高教学质量,增强学生的学习兴趣,逐步培养学生的创新意识,促进了对学生综合能力的培养。

关键词：信号与系统教学内容教学方法教学质量

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MATLAB课程教学改革的探索与实践

中国教育技术装备 2012年第33期 130-131页

作者：张昊慧淮阴师范学院物理与电子电气工程学院江苏淮安223001

为了提高MATLAB课程的教学质量,根据淮阴师范学院物理与电子电气工程学院学生的实际情况,对传统的教学方法进行改革与实践。实践证明,这些方法有助于增强学生的学习兴趣,提高教学质量,逐步培养学生的创新意识,促进学生综合能力的培养。

关键词： MATLAB 教学改革教学质量

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