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Visualization of Macrophase Separation and Transformation in Immiscible Polymer Blends

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CCS Chemistry 2023年第3期5卷 718-728页

作者： Zhiyuan Wu Chunyu Zhang Youliang Zhu Zhongyuan Lu Heng Liu Bin Xu xuequan Zhang Wenjing Tian State Key Laboratory of Supramolecular Structure and Materials College of ChemistryJilin UniversityChangchunJilin 130012 Key Laboratory of Rubber-Plastics Ministry of EducationShandong Provincial Key Laboratory of Rubber-PlasticsSchool of Polymer Science and EngineeringQingdao University of Science and TechnologyQingdaoShandong 266042

Identification and visualization of phase structures inside polymer blends are of critical importance in the understanding of their intrinsic structure and ***,the direct optical observation of the individual component phase in a dense bulk material poses a significant ***,three-dimensional fluorescence imaging of phase separation and realtime visualization of phase transformation in immiscible polymer blends of polypropylene and polystyrene is realized through multiphoton laser scanning *** to the specific fluorescence behavior of the cyanostyrene derivative 2-(4-bromophenyl)-3-(4-(4-(diphenylamino)styryl)phenyl)fumaronitrile,the high-contrast imaging of the macrophase of the component polymer in two and three dimensions with a maximum depth of 140μm and a high signal-to-noise ratio of 300 can be *** spectroscopic and structural studies reveal that the distinctive fluorescence features of each phase domain should originate from the formation of a completely different aggregate between probes and component ***,visualizations of the internal morphology deformation and macrophase transformation were realized by employing a stretched dumbbell sample under constant tension.

关键词： fluorescent probes fluorescent selectivity phase separation multiphoton laser scanning microscopy visualization

Practical Teaching Design of ecotourism Course under the Construction of Park Cities:A Case Study of Qinglong Lake ecological Wetland Park

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Journal of Landscape Research 2023年第3期15卷 75-78,84页

作者： ZHANG xuequan ZHAN Yi School of Tourism and Culture Industry Chengdu UniversityChengduSichuan 610106China

The construction of park cities makes it possible for the popularization of ecotourism,and lays resource conditions and product foundation for the practical teaching of ecotourism *** this paper,natural ecological resources and ecological leisure and recreation in Qinglong Lake ecological Wetland Park were analyzed,and a series of practical teaching projects can be designed based on ecological cognition education,ecological responsibility,ecological experience,ecological environmental protection publicity and ecological tourism scenic spot management,as well as the teaching requirements of ecotourism course.

关键词： Park city ecotourism Curriculum practice teaching

重建日常生活经验世界——新现象学的生活世界理论管窥

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学术月刊 2021年第1期53卷 23-34页

作者：庞学铨浙江大学哲学系浙江杭州310058

现象学关注生活世界。德国当代现象学家施密茨以其独特的视角和方法,阐述了一系列被赋予特殊含义的概念,提出了新现象学的生活世界理论,重建了一个日常生活经验的世界。这个世界的基础和源泉是未经意识加工的原初生活经验,它是在批判传... 详细信息

现象学关注生活世界。德国当代现象学家施密茨以其独特的视角和方法,阐述了一系列被赋予特殊含义的概念,提出了新现象学的生活世界理论,重建了一个日常生活经验的世界。这个世界的基础和源泉是未经意识加工的原初生活经验,它是在批判传统哲学的思维范式中揭示和开显出来的。日常生活经验世界的内容无限丰富,最主要的构成要素和结构是主观事实及由其奠基的具体主体性、事态、情境和作为氛围的情感等。现象学的身体则是关联各个要素和结构的纽带,身体理论主要涉及的身体性、身体动力学和身体交流,是这一纽带的集中体现,由此而使新现象学日常生活经验世界的重构得以实现。在某种意义上,新现象学也是一种身体现象学。

关键词：新现象学施密茨日常生活经验世界研究与重构

Association Between Knee Alignment,Disease Severity and Subchondral Trabecular Bone Microarchitecture in Patients with Knee Osteoarthritis

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医用生物力学 2019年第A1期34卷 67-68页

作者： xuequan Han Zihao He Linyang Chu Kai Xie Xu Jiang Mengning Yan Zhifeng Yu Shanghai Key Laboratory of Orthopaedic Implants Department of Orthopaedic SurgeryShanghai Ninth People’s HospitalShanghai Jiao Tong University School of Medicine

Objective Most patients with knee osteoarthritis(OA)have alignment deformity with the change of Hip-knee-ankle(HKA)*** knee alignment influences load distribution at the tibial ***,change of subchondral trabecular bone microstructure is related to load bearing and OA ***,the relationship between knee alignment on the changes of subchondral trabecular bone microstructure and OA severity have been poorly *** main goal of this work was to investigate variation in tibial plateaus subchondral trabecular bone microstructure in knee OA patients and their association with the severity of OA with the change of knee *** Seventy-one knee OA patients planning to undergo total knee arthroplasty were enrolled in this *** HKA angle and OA disease severity(OARSI score,compartment-specific Kellgren-Lawrence(K-L)grade and OARSI Atlas grade)based on full-leg standing posteroanterior radiographs were evaluated preoperatively in all *** tibial plateau collected during surgery was first used for micro-computed tomography(μCT)to analyze the subchondral trabecular bone microstructures,and then used for pathological sections to analyze cartilage degeneration(OARSI score).Pearson and spearman correlations were used to examine linear relationships between knee alignment,OA disease severity and subchondral trabecular bone *** were then divided into group I(HKA angle exceeds 0°in the valgus direction),group II(varus anglee≥10°).The differences in subchondral trabecular bone microstructural parameters between the three groups were analyzed by the one-way ANOVA with a post hoc Tukey *** HKA angle was significantly correlated with all tibial plateau subchondral trabecular bone microstructure *** of the medial or lateral tibia,HKA angle was most strongly correlated with bone volume fraction(BV/TV),M:(r=0. 613,P<0.01);L:(r=-0.490,P<0.01).In additio

关键词： Disease Severity Subchondral Trabecular Bone Microarchitecture Knee Osteoarthritis

125I Radioactive Particles Drive Protective Autophagy in Hepatocellular Carcinoma by Upregulating ATG9B

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Journal of Clinical and Translational Hepatology 2023年第2期11卷 360-368页

作者： Yunhua Xiao Jing Yuan Chongshuang Yang Junru Xiong Liangyu Deng Qinghua Liang Chuang He Liangshan Li Fengtian He xuequan Huang Department of Nuclear Medicine the First Affiliated Hospital of Army Medical UniversityArmy Medical UniversityChongqingChina Department of Radiology Army Medical CenterChongqingChina Department of Biochemistry and Molecular Biology College of Basic Medical SciencesArmy Medical UniversityChongqingChina

Background and Aims:125I radioactive particles implantation have demonstrated efficacy in eradicating hepatocellular carcinoma(HCC).However,progressive resistance of HCC to 125I radioactive particles has limited its wide clinical ***:We investigated the cellular responses to 125I radioactive particles treatment and autophagy-related 9B(ATG9B)silencing in HCC cell lines and Hep3B xenografted tumor model using Cell Counting Kit-8 reagent,western blotting,immunofluorescence,flow cytometry,transmission electron microscopy and ***:In this study,we demonstrated that 125I radioactive particles induced cell apoptosis and protective autophagy of HCC in vitro and in *** of autophagy enhanced the radiosensitivity of HCC to 125I radioactive ***,125I radioactive particles induced autophagy by upregulating ATG9B,with increased expression level of LC3B and decreased expression level of ***,ATG9B silencing downregulated LC3B expression and upregulated p62 expression and enhanced radiosensitivity of HCC to 125I radioactive particles in vitro and in ***:Inhibition of ATG9B enhanced the antitumor effects of 125I particle radiation against HCC in vitro and in *** findings suggest that 125I particle radiation plus chloroquine or/and the ATG9B inhibitor may be a novel therapeutic strategy for HCC.

关键词： 125I radioactive particles Hepatocellular carcinoma Autophagy ATG9B

Free vibration and transient response of double curved beams connected by intermediate straight beams

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Applied Mathematics and Mechanics(english edition) 2025年第1期46卷 37-62页

作者： R.A.JAFARI-TALOOKOLAeI H.GHANDVAR e.JUMAeV S.KHATIR T.CUONG-Le School of Mechanical engineering Babol Noshirvani University of Technology Department of Mechanical engineering Faculty of Engineering New Uzbekistan University University of Business and Science Center for engineering Application and Technology Solutions Ho Chi Minh City Open University

This paper investigates the free vibration and transient response of interconnected structures including double curved beams and intermediate straight beams,which are all constructed from functionally graded porous(FGP) materials. The strain potential and kinetic energies of each beam along with the work done by the external force are calculated. Additionally, a higher-order beam element is introduced to derive stiffness and mass matrices, along with the force vector. The curved and straight beams are discretized, and their assembled stiffness, mass matrices, and force vectors, are *** conditions at the joints are used to derive the total matrices of the entire structure. Subsequently, the natural frequencies and transient response of the system are determined. The accuracy of the mathematical model and the self-developed computer program is validated through the comparison of the obtained results with those of the existing literature and commercial software ANSYS, demonstrating excellent ***, a comprehensive study is conducted to investigate the effects of various parameters on the free vibration and transient response of the considered structure.

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Simulation Analysis on Navigation Indexes of Wanzhou Yangtze River Highway Bridge after the Anti-Collision Device Construction by Ship Model Test

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engineering（科研） 2016年第11期8卷 806-814页

作者： Kui Yu Chao Tao xuequan Chu Xiqin Ma Southwestern Hydro engineering Research Institute for Water Way Chongqing Jiaotong University Chongqing China Chongqing engineering Research Center for Bridge Navigation Safety & Anti-collision Chongqing Jiaotong University Chongqing China School of River & Ocean engineering Chongqing Jiaotong University Chongqing China

After the anti-collision facility construction of Wanzhou Yangtze River Highway Bridge, the conditions of navigation in bridge area are complex. In order to study the navigation conditions of the reach and layout optimization measures, ensuring the safety of the ship navigation test has been carried out on the ship model navigation in the bridge area. According to the requirements of the maximum safety limit of the ship model test, the paper puts forward the best route, the control method and the difficulty of navigation through the analysis of the test results, and finally gives the recommendations and suggestions.

关键词： Wanzhou Yangtze River Highway Bridge Anti-Collision Facility Ship Model Test Navigation Indexes

赫费的政治正义性理论——赫费政治伦理学的主要理论贡献

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华中师范大学学报（人文社会科学版） 2017年第4期56卷 69-76页

作者：庞学铨浙江大学哲学系浙江杭州310058

全球化不但给经济、文化等领域带来了巨大的挑战和变化,也向人们发问:在这样的时代,人类共同生活的何种形式是正当的?德国当代著名政治哲学家赫费的政治伦理学就是试图回答这一全球化时代提出的重大理论问题。他为当代政治哲学思想提供... 详细信息

全球化不但给经济、文化等领域带来了巨大的挑战和变化,也向人们发问:在这样的时代,人类共同生活的何种形式是正当的?德国当代著名政治哲学家赫费的政治伦理学就是试图回答这一全球化时代提出的重大理论问题。他为当代政治哲学思想提供了三个重要的理论贡献:重新恢复了法、国家和伦理学三者的密切关系;提出了与全球化时代相应的政治伦理学说,论述了交换正义性理论;阐述了正义理论应用的重要构想:世界共和国理想。本文对赫费这三方面的思想作了简明清晰的梳理与阐述。

关键词：赫费(O.Hffe) 政治伦理学交换正义性全球正义

exploiting a metal wire grating in total internal reflection geometry to achieve achromatic polarization conversion

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Photonics Research 2017年第4期5卷 299-304页

作者： XUDONG LIU xuequan CHeN eDWARD P.J.PARROTT eMMA PICKWeLL-MACPHeRSON Department of electronic engineering Chinese University of Hong Kong

We demonstrate how a metal wire grating can work as a 45° polarization converter, a quarter-wave retarder, and a half-wave retarder over a broadband terahertz range when set up in total internal reflection geometry. Classical electromagnetic theory is applied to understand the mechanism, and equations to calculate the polarization state of reflected light are derived. We use a metal grating with a period of 20 μm and width of 10 μm on a fused silica surface: linearly polarized terahertz light incident from fused silica with a supercritical incident angle of 52° is totally reflected by the metal grating and air. The polarization of the terahertz light is rotated by 45°, 90°, and circularly polarized by simply rotating the wire grating. The performance is achromatic over the measured range of 0.1–0.7 THz and comparable to commercial visible light wave retarders.

关键词： THz