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Enhancing the photocatalytic efficiency by the molecular modification effect derived from pollutant adsorption on highly crystalline BiOBr

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Journal of Environmental Sciences 2025年第2期148卷 263-273页

作者： Yang Jin Tongyin liu Yanpeng Mao fan li Chun Hu National Engineering Laboratory for Reducing Emissions from Coal Combustion Engineering Research Center of Environmental Thermal Technology of Ministry of EducationShandong Key Laboratory of Energy Carbon Reduction and Resource UtilizationSchool of Energy and Power EngineeringShandong UniversityJinan 250061China Beijing Enterprises Water GroupInvestment limited Beijing 100102China Institute of Environmental Research at Greater Bay Key Laboratory for Water Quality and Conservation of the Pearl River DeltaMinistry of EducationGuangzhou UniversityGuangzhou 510006China Key Laboratory of Drinking Water Science and Technology Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China

The adsorption of pollutants can not only promote the direct surface reaction,but also modify the catalyst itself to improve its photoelectric characteristics,which is rarely studied for water treatment with inorganic photocatalyst.A highly crystalline BiOBr(c-BiOBr)was synthesized by a two-step preparation *** to the calcination,the highly crystalline enhanced the interface interaction between pollutant and *** complex of organic pollutant and[Bi_(2)O_(2)]^(2+)could promote the active electron transfer from the adsorbed pollutant to c-BiOBr for the direct pollutant degradation by holes(h^(+)).Moreover,the pollutant adsorption actually modified c-BiOBr and promoted more unpaired electrons,which would coupling with the photoexcitation to promote generate more O_(2)^(•-).The molecular modification effect derived from pollutant adsorption significantly improved the removal of *** work strongly deepens the understanding of the molecularmodification effect from the pollutant adsorption and develops a novel and efficient approach for water treatment.

关键词： Highly crystalline BiOBr Pollutant adsorption Molecular modification Photocatalysis Water treatment

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SkullcapflavoneⅡsuppresses TGF-β-induced corneal epithelial mesenchymal transition in vitro

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International Journal of Ophthalmology(English edition) 2025年第2期18卷 209-215页

作者： Meng-Xi li Zhen Zhang Yue Zhang fan-Ru Zhao Yu-fan li Yu-Fei Dang Yang-Yang Yue li li Department of Ophthalmology The First Affiliated Hospital of Xi’an Jiaotong UniversityXi’an 710061Shaanxi ProvinceChina Xi’an People’s Hospital(Xi’an Fourth Hospital) Shaanxi Eye HospitalAffiliated Xi’an Fourth HospitalNorthwestern Polytechnical UniversityXi’an 710000Shaanxi ProvinceChina Department of Vascular Surgery The First Affiliated Hospital of Xi’an Jiaotong UniversityXi’an 710061Shaanxi ProvinceChina

AIM:To investigate the effect of skullcapflavone II(SCF-II)on the epithelial-mesenchymal transition(EMT)induced by transforming growth factor beta(TGF-β)in human corneal epithelial cells(HCECs),as well as to identify the signaling pathways that may be ***:HCECs were cultured in *** a SCFII(5,10μmol/L)dose,cell viability was analysed with a cell counting kit-8(CCK-8)assay,and cell migration was monitored with wound healing and Transwell migration *** were 4 groups:SCF-II,TGF-β,SCF-II+TGF-βand *** blotting and immunofluorescence were performed to show the expression of EMT markers and the translocation of nuclear factor kappa-B(NF-κB)into the nucleus in the 4 ***:Treatment with SCF-II decreased HCEC viability in a dose-dependent manner.A concentration below 10μmol/L did not present obvious cell toxicity,and survival rates were more than 70%at *** with SCF-II(5 and 10μmol/L)significantly impeded migration in wound healing and Transwell migration assays(Pling ***,SCF-II represents a candidate putative therapeutic agent in corneal fibrotic diseases.

关键词： skullcapflavone II epithelial-mesenchymal transition transforming growth factor nuclear factor kappa-B human corneal epithelial cells

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Combined anisotropic and cyclic constitutive model for laser powder bed fusion fabricated aluminum alloy

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Chinese Journal of Aeronautics 2025年第1期38卷 165-184页

作者： Fei-fan li Jihong ZHU Weihong ZHANG Shifeng WEN Jingwen SONG Jun MA Gang fanG State IJR Center of Aerospace Design and Additive Manufacturing School of Mechanical EngineeringNorthwestern Polytechnical UniversityXi’an 710072China Research&Development Institute of Northwestern Polytechnical University in Shenzhen Shenzhen 518063China School of Materials Science and Engineering Northwestern Polytechnical UniversityXi'an 710072China Department of Mechanical and Industrial Engineering Norwegian University of Science and TechnologyTrondheim 7491Norway State Key Laboratory of Tribology in Advanced Equipment Department of Mechanical EngineeringTsinghua UniversityBeijing 100084China

This study presents new methods to effectively model the anisotropic yielding and hardening behavior of laser powder bed fusion fabricated aluminum alloy under both monotonic and cyclic loading *** proposed model combines the yield surface-interpolation method to accurately describe the anisotropic hardening rates in various directions,with the Chaboche kinematic hardening rule to precisely reflect the cyclic *** numerical implementation of the combined anisotropic and cyclic constitutive model,a fully implicit stress integration algorithm based on return mapping method is ***,the multiple parameters associated with the model are categorized and identified in an uncoupled *** isotropic and cyclic hardening parameters are determined by an inverse method,and the stability of the optimization outcomes is validated by applying different starting points for the ***,the back-stress effect on the identification of anisotropic parameters associated with the stress invariant-based Hill48 yield function is considered for the first *** consideration leads to an improved prediction accuracy compared to the identification of anisotropic parameters without considering back-stress *** combined anisotropic and cyclic constitutive model,along with the calibrated parameters,are proven capable of accurately reproducing the intricate deformation behavior of laser powder bed fusion fabricated AlSi10Mg.

关键词： Constitutive models Anisotropy Kinematic hardening Laser powder bed fusion Aluminum alloys

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A special core-shell material(Mxene@Ag@Phytate)to improve EVA composite fire safety,radiation cross-linking effect,and electromagnetic shielding

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Nuclear Science and Techniques 2025年第2期36卷 27-39页

作者： Si-Yi Xu Dan-Yi li Wen-Rui Wang lin lin Ying Sun Ji-Hao li lin-fan li Shanghai Institute of Applied Physics Chinese Academy of SciencesShanghai 201800China University of Chinese Academy of Sciences Beijing 100049China

High-performance MXene-based polymer nanocomposites are well-suited for various industrial applications owing to their excellent mechanical,thermal,and other ***,the fabrication of flame-retardant polymer/MXene nanocom-posites remains challenging owing to the limited flame-retardant properties of MXene *** study prepared a novel MXene@Ag@PA hybrid material via radiation modification and complexation *** material was used to further enhance the key properties of ethylene-vinyl acetate(EVA),such as its mechanical properties,thermal conductivity,flame retardancy,and electromagnetic *** addition of two parts of this hybrid material increased the thermal conduc-tivity of EVA by 44.2%and reduced its peak exothermic rate during combustion by 30.1%compared with pure *** material also significantly reduced smoke production and increased the residue *** the X-band,the electromagnetic shielding effectiveness of the EVA composites reached 20 ***,the MXene@Ag@PA hybrid material could be used to further enhance the mechanical properties of EVA composites under electron-beam ***,this study contributes to the development of MXene-based EVA advanced materials that are fire-safe,have high strength,and exhibit good electromagnetic shielding performance for various applications.

关键词： MXene@Ag@PA Ethylene-vinyl acetate(EVA) Flame retardancy Electromagnetic shielding performance

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Impact of Hard Segment Structures on Fatigue Threshold of Casting Polyurethane Using Cutting Method

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CHINESE JOURNAL OF POLYMER SCIENCE 2025年第2期43卷 303-315页

作者： Jin, Guang-Zhi Chen, Le-Hang Gong, Yu-Zhen li, Peng Wang, Run-Guo li, fan-Zhu Lu, Yong-Lai Beijing Univ Chem Technol State Key Lab Organ Inorgan Composites Beijing 100029 Peoples R China Minist Educ Engn Res Ctr Elastomer Mat Energy Conservat & Reso Beijing 100029 Peoples R China Beijing Univ Chem Technol Key Lab Carbon Fiber & Funct Polymers Beijing 100029 Peoples R China Beijing Univ Chem Technol Coll Mat Sci & Engn Ctr Adv Elastomer Mat Beijing 100029 Peoples R China

The fatigue resistance of casting polyurethane (CPU) is crucial in various sectors, such as construction, healthcare, and the automotive industry. Despite its importance, no studies have reported on the fatigue threshold of CPU. This study employed an advanced Intrinsic Strength Analyzer (ISA) to evaluate the fatigue threshold of CPUs, systematically exploring the effects of three types of isocyanates (PPDI, NDI, TDI) that contribute to hard segment structures based on the cutting method. Employing multiple advanced characterization techniques (XRD, TEM, DSC, AFM), the results indicate that PPDI-based polyurethane exhibits the highest fatigue threshold (182.89 J/m2) due to a highest phase separation and a densely packed spherulitic structure, although the hydrogen bonding degree is the lowest (48.3%). Conversely, NDI-based polyurethane, despite having the high hydrogen bonding degree (53.6%), exhibits moderate fatigue performance (122.52 J/m2), likely due to a more scattered microstructure. TDI-based polyurethane, with the highest hydrogen bonding degree (59.1%) but absence of spherulitic structure, shows the lowest fatigue threshold (46.43 J/m2). Compared to common rubbers (NR, NBR, EPDM, BR), the superior fatigue performance of CPU is attributed to its well-organized microstructure, polyurethane possesses a higher fatigue threshold due to its high phase separation degree and orderly and dense spherulitic structure which enhances energy dissipation and reduces crack propagation.

关键词： Casting polyurethane Fatigue threshold Cutting method Hard segment structures Materials characterization

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CT whole lung radiomic nomogram:a potential biomarker for lung function evaluation and identification of COPD

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Military Medical Research 2025年第1期12卷 36-47页

作者： Tao-Hu Zhou Xiu-Xiu Zhou Jiong Ni Yan-Qing Ma fang-Yi Xu Bing fan Yu Guan Xin-Ang Jiang Xiao-Qing lin Jie li Yi Xia Xiang Wang Yun Wang Wen-Jun Huang Wen-Ting Tu Peng Dong Zhao-Bin li Shi-Yuan liu li fan Department of Radiology the Second Affiliated Hospital of Naval Medical UniversityShanghai 200003China School of Medical Imaging Shandong Second Medical UniversityWeifang 261053ShandongChina Department of Radiology School of MedicineTongji HospitalTongji UniversityShanghai 200065China Department of Radiology Zhejiang Province People’s HospitalAffiliated People’s Hospital of Hangzhou Medical CollegeHangzhou 310014China Department of Radiology Sir Run Run Shaw HospitalZhejiang 310018China Jiangxi Provincial People’s Hospital the First Affiliated Hospital of Nanchang Medical CollegeNanchang 330006China College of Health Sciences and Engineering University of Shanghai for Science and TechnologyShanghai 200093China Department of Radiology the Second People’s Hospital of DeyangDeyang 618000SichuanChina Department of Radiation Oncology Shanghai Jiao Tong University Affiliated Sixth People’s HospitalShanghai 200233China

Background:Computed tomography(CT)plays a great role in characterizing and quantifying changes in lung structure and function of chronic obstructive pulmonary disease(COPD).This study aimed to explore the performance of CT-based whole lung radiomic in discriminating COPD patients and non-COPD ***:This retrospective study was performed on 2785 patients who underwent pulmonary function examination in 5 hospitals and were divided into non-COPD group and COPD *** radiomic features of the whole lung volume were *** absolute shrinkage and selection operator(LASSO)logistic regression was applied for feature selection and radiomic signature construction.A radiomic nomogram was established by combining the radiomic score and clinical *** operating characteristic(ROC)curve analysis and decision curve analysis(DCA)were used to evaluate the predictive performance of the radiomic nomogram in the training,internal validation,and independent external validation ***:Eighteen radiomic features were collected from the whole lung volume to construct a radiomic *** area under the curve(AUC)of the radiomic model in the training,internal,and independent external validation cohorts were 0.888[95%confidence interval(CI)0.869–0.906],0.874(95%CI 0.844–0.904),and 0.846(95%CI 0.822–0.870),*** were higher than the clinical model(AUC were 0.732,0.714,and 0.777,respectively,Plinical factor ***:The intuitive nomogram constructed by CT-based whole-lung radiomic has shown good performance and high accuracy in identifying COPD in this multicenter study.

关键词： Chronic obstructive pulmonary disease(COPD) Computed tomography(CT) Radiomic

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Triazine-COF@Silicon nanowire mimicking plant leaf to enhance photoelectrocatalytic CO_(2)reduction to C2þchemicals

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Green Energy & Environment 2025年第2期10卷 422-432页

作者： Wenrui Wan fanhua Meng Si Chen Jianhua Wang Chunyan liu Yan Wei Chenpu He li fan Qiaolan Zhang Weichun Ye Huanwang Jing State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical EngineeringLanzhou UniversityLanzhou730000GansuChina Key Laboratory of Green Chemical Media and Reactions(Ministry of Education) School of Chemistry and Chemical EngineeringHenan Normal UniversityXinxiang453007HenanChina School of Chemical Engineering Lanzhou University of Arts and SciencesLanzhou730010China

Converting CO_(2)and water into valuable chemicals like plant do is considered a promising approach to address both environmental and energy *** inspiration from the structures of natural leaves,we designed and synthesized a novel copper-coordinated covalent triazine framework(CuCTF)supported by silicon nanowire arrays on wafer *** marks the first-ever application of such a hybrid material in the photoelectrocatalytic reduction of CO_(2)under mild *** Si@CuCTF6 heterojunction has exhibited exceptional selectivity of 95.6%towards multicarbon products(C^(2+))and apparent quantum efficiency(AQE)of 0.89%for carbon-based *** active sites of the catalysts are derived from the nitrogen atoms of unique triazine ring structure in the ordered porous framework and the abundant Cu-N coordination sites with bipyridine ***,through DFT calculations and operando FTIR spectra analysis,we proposed a comprehensive mechanism for the photoelectrocatalytic CO_(2)reduction,confirming the existence of key intermediate species such as*CO_(2)-,*=C=O,*CHO and*CO-CHO *** work not only provides a new way to mimic photosynthesis of plant leaves but also gives a new opportunity to enter this research field in the future.

关键词： Silicon Photoelectrocatalysis CO_(2)reduction Covalent triazine framework Sustainable chemistry

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开放共享视野下科学数据权利配置的实现路径

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中国科技论坛 2025年第2期 19-29页

作者：李凡中南财经政法大学知识产权研究中心湖北武汉430073

合理的科学数据权利配置是纾解科学数据溯源、激励科学数据高质量生产和开放共享的关键,以数据持有者权为核心的权利配置模式契合科学数据开放共享政策下隐含的激励学术创作、鼓励科学研究投资等目标,有必要通过初始赋权和后续制度设计... 详细信息

合理的科学数据权利配置是纾解科学数据溯源、激励科学数据高质量生产和开放共享的关键,以数据持有者权为核心的权利配置模式契合科学数据开放共享政策下隐含的激励学术创作、鼓励科学研究投资等目标,有必要通过初始赋权和后续制度设计调整数据来源者、持有者和使用者关于科学数据使用的利益关系,建立体现分置思想的科学数据持有者权体系,以权利形式探索规范科学数据流通利用秩序的制度工具。科学数据资源的赋权重点在于促进科学数据流通利用、实现数据要素价值最大化,科研人员、实验室团队、研究所等科学数据资源持有者基于加工处理行为和事实控制状态享有标识、使用科学数据资源的有限权利,但不得妨碍在后使用者获取引用科学数据的自由,力求建立多元开放的科学数据资源供给机制。当科学数据资源经加工处理形成形态和价值相对稳定的科学数据产品时,有必要借鉴知识产权制度赋予科学数据产品持有者有限排他的稳定产权,允许其通过授权经营实现数据产品价值,进而从科学数据产品持有权中分置出科学数据产品经营权,激励其持续提供高质量数据产品及服务。

关键词：科学数据数据权利配置数据开放科学数据资源科学数据产品

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观看与制作:柏拉图论哲学家适合统治的理由

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哲学动态 2025年第1期 104-116页

作者：樊黎同济大学人文学院

柏拉图在《理想国》核心卷中论证了哲学家比非哲学家更适合统治。按照聂敏里的解读,柏拉图虽然试图论证哲学家拥有统治所需的美德,但由于哲学家的美德是沉思性而非实践性的,哲学家和城邦存在于不同的形而上学层次上,因而注定了这一论证... 详细信息

柏拉图在《理想国》核心卷中论证了哲学家比非哲学家更适合统治。按照聂敏里的解读,柏拉图虽然试图论证哲学家拥有统治所需的美德,但由于哲学家的美德是沉思性而非实践性的,哲学家和城邦存在于不同的形而上学层次上,因而注定了这一论证是失败的。该解读切中了哲学家论证的关键问题,即本体世界和现象世界的关系,却忽视了柏拉图联系两个世界的方式:制作活动是一种观看本体世界的原型并据此在现象世界中模仿原型的活动。因此,观看并非与制作相对立的活动,而是制作的本质性要素。柏拉图的论证在根本上依赖于这一洞见:正因为哲学家最能看清楚本体世界的原型,所以他才最能缔造正义秩序。尽管亚里士多德对柏拉图的形而上学多有批评,但他也在自己的形而上学框架下继承了柏拉图对制作的分析,这从侧面印证了柏拉图的这一分析的合理性。

关键词：柏拉图《理想国》哲人王观看制作

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Hemoglobin glycation index among adults with type 1 diabetes:Association with double diabetes features

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World Journal of Diabetes 2025年第4期16卷 153-165页

作者： Xiao-lin Ji Min Yin Chao Deng li fan Yu-Ting Xie fan-Su Huang Yan Chen Xia li National Clinical Research Center for Metabolic Diseases Key Laboratory of Diabetes Immunology(Central South University)Ministry of Educationand Department of Metabolism and EndocrinologyThe Second Xiangya Hospital of Central South UniversityChangsha 410011Hunan ProvinceChina Department of Endocrinology The First Affiliated HospitalSouthwest HospitalArmy Medical UniversityChongqing 400038China Department of Nutrition The Second Xiangya Hospital of Central South UniversityChangsha 410011Hunan ProvinceChina

ACKGROUND The hemoglobin glycation index(HGI)represents the discrepancy between the glucose management indicator(GMI)based on mean blood glucose levels and laboratory values of glycated hemoglobin(HbA1c).The HGI is a promising indicator for identifying individuals with excessive glycosylation,facilitating personalized evaluation and prediction of diabetic ***,the factors influencing the HGI in patients with type 1 diabetes(T1D)remain *** destruction of pancreaticβcells is central in T1D pathogenesis,yet insulin resistance can also be a feature of patients with T1D and their coexistence is called“double diabetes”(DD).However,knowledge regarding the relationship between DD features and the HGI in T1D is *** To assess the association between the HGI and DD features in adults with *** A total of 83 patients with T1D were recruited for this cross-sectional *** HbA1c and GMI from continuous glucose monitoring data were collected to calculate the *** features included a family history of type 2 diabetes,overweight/obesity/central adiposity,hypertension,atherogenic dyslipidemia,an abnormal percentage of body fat(PBF)and/or visceral fat area(VFA)and decreased estimated insulin *** autofluorescence of advanced glycation end products(SAF-AGEs),diabetic complications,and DD features were assessed,and their association with the HGI was *** A discrepancy was observed between HbA1c and GMI among patients with T1D and DD.A higher HGI was associated with an increased number of SAF-AGEs and a higher prevalence of diabetic microangiopathy(P=0.030),particularly retinopathy(P=0.031).Patients with three or more DD features exhibited an eight-fold increased risk of having a high HGI,compared with those without DD features(adjusted odds ratio=8.12;95%confidence interval:1.52-43.47).Specifically,an elevated PBF and/or VFA and decreased estimated insulin sensitivity were associated with high ***

关键词： Type 1 diabetes Double diabetes Insulin resistance Hemoglobin glycation index Advanced glycation end products Diabetic complications

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