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In-situ embedded ultrafine Bi_(12)O_(17)Br_(2)nanotubes in MOF-derived hierarchical porous carbon for enhanced photocatalytic CO_(2)conversion to CO

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Journal of Materials Science & Technology 2024年第4期171卷 47-53页

作者： xing sun Mengxia Ji Yi Zhang Qingzeng xing Zihan Liu Nianhua Liu Emmanuel Nkudede Huaming Li Sheng Yin Jiexiang Xia School of Chemistry and Chemical Engineering Institute for Energy ResearchJiangsu UniversityZhenjiang 212013China Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources Qinghai Provincial Key Laboratory of Resources Chemistry of Salt LakesQinghai Institute of Salt LakesChinese Academy of SciencesXining 81008China

Increasing the utilization efficiency of photogenerated electrons is highly recognized as one of the ef-ficient approaches to boost the photocatalytic CO_(2)conversion ***,ZIF-67-derived porous carbon(PC)material was employed for the construction of PC@ultrafine Bi_(12)O_(17)Br_(2)nanotubes(PC@BOB NTs)composites through a facile solvothermal synthesis in order to optimize the use of excited elec-trons in the BOB *** characterization results revealed that the introduction of PC material achieved a faster charge separation rate in the PC@BOB composites,ensuring more photogener-ated electrons participate in the CO_(2)adsorption and activation ***,the pore structures of ZIF-67-derived PC material provided abundant confined spaces for the enrichment of CO_(2)***-ter 5 h of Xenon lamp irradiation,PC@BOB composites exhibited obviously increased photocatalytic CO_(2)reduction activity in the pure *** the addition amount of PC was 5 wt%,the PC@BOB-2 com-posite showed the highest CO evolution rate of 359.70μmol/g,which was 2.95 times higher than that of the pure BOB *** work provides some independent insights into the applications of Metal-Organic Framework(MOF)-derived hierarchical porous structures to strengthen the CO_(2)enrichment,as well as the excited charge utilization efficiency,thus achieving a high solar-to-fuel conversion efficiency.

关键词： Bi_(12)O_(17)Br_(2)nanotubes Hierarchical porous structure CO_(2)enrichment Charge separation CO_(2)photoreduction

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Celastrus orbiculatus Extract Inhibits Immune Inflammatory Thrombotic State of B-Lymphoma

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Chinese Journal of Integrative Medicine 2024年第11期30卷 1018-1026页

作者： ZHU Miao SHI Qing-qing NI Jun WU Wei sun xing sun Mei XU Kai-lin LIU Yan-qing GU Jian GU Hao Department of Hematology Clinical Medical Col ege Yangzhou University Yangzhou Institute of Hematology Department of Hematology The Affiliated Hospital of Xuzhou Medical University Department of Oncology The Affiliated Hospital of Yangzhou University Yangzhou University Department of Neurology The Affiliated Brain Hospital of Nanjing Medical University

Objective:To investigate the inhibitory effect of Celastrus orbiculatus extracts（COE） on the proliferation of lymphoma cells and the immune regulation ability on inflammation and thrombophilia in ***:The 38B9 lymphoma cells were treated with COE（160μg/mL） and CTX（25 μmol/L）.The apoptosis rate and cell cycle of each group were detected by flow *** secretion of inflammatory factors,including interleukin（IL）-6,IL-10,and tumor necrosis factor α（TNF-α）,in cell supernatant was detected by enzyme-linked immunosorbent assay（ELISA）.In vivo,BALB/c mice were subcutaneously injected with 38B9 lymphoma cells to establish lymphoma ***(3 mg·kg-1·d-1) and CTX(40 mg-kg-1·d-1) were administered to the model mice,*** expression of plasma inflammatory factors（IL-6,IL-10 and TNF-α） and thrombus indexes,including D-dimer（D-D）,von Willebrand factor（vWF） and tissue factor（TF）,were detected by ELISA before tumor bearing（1 d）,after tumor formation（14 d） and after intervention（21 d）.PicoGreen dsDNA was used to detect the level of serum neutrophil extracellular traps（NETs）.Flow cytometry was used to detect the expression of platelet activation marker calcium-dependent lectin-like receptor 2（CLEC-2）.The tumor growth and survival of mice were ***:The 38B9 lymphoma cells were apoptotic after the intervention of COE and *** ratio of G2-M phase cells decreased in COE intervented cells compared with the control cells（P<0.05）,and S phase cells decreased in CTX intervented cells（P<0.05）.Also,the secretion level of IL-6 was significantly reduced after COE or CTX intervention（P<0.05）,and IL-10 was significantly increased（P<0.05）.Furthermore,the tumor mass was reduced,and the median survival time was longer in COE and CTX intervented tumor-bearing mice than in nonintervented *** significantly lower levels of TNF-α,IL-6,NETs,TF,DD and CLEC-2,as well as higher IL-10 were observed in COE and CTX treatment mice in comparision with the control mice（P

关键词： Celastrus orbiculatus extract immune regulation lymphoma murine lymphoma cells proliferation inhibition thrombotic state tumor inflammation

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Tailored wrinkles for tunable sensing performance by stereolithography

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Interdisciplinary Materials 2024年第3期3卷 414-424页

作者： Ruiyi Jiang Jie Pu Yuxuan Wang Jipeng Chen Gangwen Fu Xue Chen Jiayu Yang Jianghua Shen xing sun Jun Ding Xi Xu Key Laboratory of Flexible Electronics of Zhejiang Province Ningbo Institute of Northwestern Polytechnical UniversityNingboChina Frontiers Science Center for Flexible Electronics Institute of Flexible ElectronicsNorthwestern Polytechnical UniversityXi'anChina Research&Development Institute of Northwestern Polytechnical University in ShenzhenNanshan DistrictShenzhenChina Affiliated Hospital of Nanjing University of Chinese Medicine NanjingChina School of Aeronautics Northwestern Polytechnical UniversityXi'anChina Combustion Internal Flow and Thermal-Structure LaboratorySchool of AstronauticsNorthwestern Polytechnical UniversityXi'anChina Department of Materials Science and Engineering Faculty of EngineeringNational University of SingaporeSingapore

Conducting polymer hydrogel can address the challenges of stricken biocompatibility and ***,conventional conducting polymer hydrogels are often brittle and weak due to the intrinsic quality of the material,which exhibits *** property may cause a delay in sensor response time due to *** overcome these limitations,we have designed a wrinkle morphology three-dimensional(3D)substrate using digital light processing technology and then followed by in situ polymerization to form interpenetrating polymer network *** novel design results in a wrinkle morphology conducting polymer hydrogel elastomer with high precision and geometric freedom,as the size of the wrinkles can be controlled by adjusting the treating *** wrinkle morphology on the conducting polymer hydrogel effectively reduces its viscoelasticity,leading to samples with quick response time,low hysteresis,stable cyclic performance,and remarkable resistance ***,the 3D gradient structure augmented the sensor's sensitivity under minimal stress while exhibiting consistent sensing *** properties indicate the potential of the conducting polymer hydrogel as a flexible sensor.

关键词： 3D printing conducting polymer hydrogel flexible sensor micro-wrinkle structure

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Two aquaporins,PIP1;1 and PIP2;1,mediate the uptake of neonicotinoid pesticides in plants

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Plant Communications 2024年第5期5卷 176-188页

作者： Qun Wan Yixin Li Jinjin Cheng Ya Wang Jing Ge Tingli Liu Liya Ma Yong Li Jianan Liu Chunli Zhou Haocong Li xing sun Xiaolong Chen Qing X.Li Xiangyang Yu Key Laboratory of Food Quality and Safety of Jiangsu Province State Key Laboratory Breeding BaseNanjing 210014China Institute of Food Safety and Nutrition Jiangsu Academy of Agricultural Sciences50 Zhongling StreetNanjing 210014China Jiangsu Provincial Key Construction Laboratory of Special Biomass Resource Utilization Nanjing Xiaozhuang University3601 Hongjin AvenueNanjing 211171China Department of Molecular Biosciences and Bioengineering University of Hawaii at ManoaHonoluluHI 96822USA

Neonicotinoids(NEOs),a large class of organic compounds,are a type of commonly used pesticide for crop *** uptake and accumulation in plants are prerequisites for their intra-and intercellular move-ments,transformation,and *** the molecular mechanisms that underpin NEO uptake by plants is crucial for effective application,which remains ***,we demonstrate that NEOs enter plant cells primarily through the transmembrane symplastic pathway and accumulate mainly in the *** plasma membrane intrinsic proteins discovered in Brassica rapa,BraPIP1;1 and BraPIP2;1,were found to encode aquaporins(AQPs)that are highly permeable to NEOs in different plant species and facilitate NEO subcellular diffusion and *** conserved transport function was further demonstrated in Xenopus laevis oocyte and yeast ***1;1 and BraPIP2;1 gene knockouts and interaction as-says suggested that their proteins can form functional *** of the potential of mean force indicated a negative correlation between NEO uptake and the energy barrier of BraPIP1;1 *** study shows that AQPs transport organic compounds with greater osmolarity than previously thought,providing new insight into the molecular mechanisms of organic compound uptake and facilitating innovations in systemic pesticides.

关键词： neonicotinoid aquaporin Brassica rapa plasma membrane uptake systemic pesticide

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Three-dimensional-printed Ni-based scaffold design accelerates bubble escape for ampere-level alkaline hydrogen evolution reaction

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Interdisciplinary Materials 2024年第4期3卷 595-606页

作者： Jingxuan Chen Gangwen Fu Yu Tian xingchuan Li Mengqi Luo Xiaoyu Wei Ting Zhang Tian Gao Cheng Chen Somboon Chaemchuen Xi Xu xing sun Tongle Bu Francis Verpoort John Wang Zongkui Kou State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhanChina Marine New Materials and Equipment Technology Center Sanya Science and Education Innovation Park of Wuhan University of TechnologySanyaChina Frontiers Science Center for Flexible Electronics Institute of Flexible ElectronicsNorthwestern Polytechnical UniversityXi'anChina Key laboratory of Flexible Electronics of Zhejiang Province Ningbo Institute of Northwestern Polytechnical UniversityNingboChina School of Astronautics Northwestern Polytechnical UniversityXi'anChina Department of Materials Science and Engineering College of Design and EngineeringNational University of SingaporeSingaporeSingapore National University of Singapore(Chongqing)Research Institute Chongqing Liang Jiang New AreaChongqingChina

Alkaline hydrogen evolution reaction(HER)for scalable hydrogen production largely hinges on addressing the sluggish bubble-involved kinetics on the traditional Ni-based electrode,especially for ampere-level current densities and ***,3D-printed Ni-based sulfide(3DPNS)electrodes with varying scaffolds are designed and *** situ observations at microscopic levels demonstrate that the bubble escape velocity increases with the number of hole sides(HS)in the ***,we conduct multiphysics field simulations to illustrate that as the hole shapes transition from square,pentagon,and hexagon to circle,where a noticeable reduction in the bubble-attached HS length and the pressure balance time around the bubbles results in a decrease in bubble size and an acceleration in the rate of bubble ***,the 3DPNS electrode with circular hole configura-tions exhibits the most favorable HER performance with an overpotential of 297 mV at the current density of up to 1000 mA cm^(-2) for 120 *** present study highlights a scalable and effective electrode scaffold design that promotes low-cost and low-energy green hydrogen production through the ampere-level alkaline HER.

关键词： 3D printing alkaline hydrogen evolution reaction ampere-level current densities bubble escape hole sides

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基于视觉特性的城市隧道中间段洞顶景观对行车安全的影响分析

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现代隧道技术 2024年第3期61卷 228-235页

作者：刘长宝臧延伟孙兴中国电建集团华东勘测设计研究院有限公司杭州310014

为分析城市隧道洞顶景观环境下的行车安全性,以城市隧道中间段洞顶景观为研究对象,利用3DMax软件构建具有不同色彩及背景图案的洞顶景观仿真模型,并通过室内仿真试验采集驾驶人视觉参数数据。基于试验数据,分析驾驶人在通过不同洞顶景... 详细信息

为分析城市隧道洞顶景观环境下的行车安全性,以城市隧道中间段洞顶景观为研究对象,利用3DMax软件构建具有不同色彩及背景图案的洞顶景观仿真模型,并通过室内仿真试验采集驾驶人视觉参数数据。基于试验数据,分析驾驶人在通过不同洞顶景观环境下的心理负荷和分心程度。最后利用熵权法根据视觉数值特征对不同洞顶景观方案进行评价。试验结果表明:城市隧道中间段设置洞顶景观能有效降低驾驶人的心理负荷,色彩有图案的设计方案有助于降低驾驶人心理负荷;城市隧道洞顶景观不会引起驾驶人严重分心,其中绿色无图案设计的洞顶景观下驾驶人分心程度最低;色彩无图案设计下的行车安全性整体高于色彩有图案设计以及无色彩无图案设计下的安全性。

关键词：交通安全视觉特性洞顶景观仿真试验城市隧道熵权法

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三联冶炼+挤压制备的GH4710合金棒材热变形行为及热加工图

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稀有金属材料与工程 2024年第9期53卷 2555-2564页

作者：陈由红兰博孙兴林莺莺中国航发北京航空材料研究院北京100095

采用真空感应(VIM)+电渣重熔(ESR)+真空自耗(VAR)三联冶炼制备的GH4710合金铸锭经挤压获得棒材。在Gleeble-1500试验机上开展等温压缩实验,研究了三联铸锭挤压态GH4710合金在温度1050~1150℃,应变速率0.01~5 s^(-1)条件下的热变形行为... 详细信息

采用真空感应(VIM)+电渣重熔(ESR)+真空自耗(VAR)三联冶炼制备的GH4710合金铸锭经挤压获得棒材。在Gleeble-1500试验机上开展等温压缩实验,研究了三联铸锭挤压态GH4710合金在温度1050~1150℃,应变速率0.01~5 s^(-1)条件下的热变形行为。结果表明,应力-应变曲线具有明显的动态再结晶特征,且应力随着变形温度的升高和应变速率的降低而明显减小。基于应力应变曲线,建立了合金动态再结晶临界应变模型,同时建立了考虑应变影响的Arrhenius本构模型来精确描述合金应力、应变速率和温度的依赖关系。最后以动态材料模型为基础构建了合金热加工图,结合显微组织分析,明确了合金流变失稳特征为不均匀显微组织,确定了合金最佳锻造工艺参数范围为1050℃≤T≤1100℃、0.01 s^(-1)≤ε≤0.1 s^(-1)。

关键词： GH4710合金挤压三联冶炼工艺热加工图

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Follicle stimulating hormone controls granulosa cell glutamine synthesis to regulate ovulation

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Protein & Cell 2024年第7期15卷 512-529页

作者： Kai-Hui Zhang Fei-Fei Zhang Zhi-Ling Zhang Ke-Fei Fang Wen-xing sun Na Kong Min Wu Hai-Ou Liu Yan Liu Zhi Li Qing-Qing Cai Yang Wang Quan-Wei Wei Peng-Cheng Lin Yan Lin Wei Xu Cong-Jian Xu Yi-Yuan Yuan Shi-Min Zhao The Obstetrics&Gynecology Hospital of Fudan University State Key Laboratory of Genetic EngineeringFudan UniversityShanghai 200090China Shanghai Key Laboratory of Metabolic Remodeling and Children’s Hospital of Fudan UniversityShanghai 200032China School of Life Sciences and Institutes of Biomedical Sciences Fudan UniversityShanghai 200438China Department of Nutrition and Food Hygiene School of Public HealthNantong UniversityNantong 226019China Reproductive Medicine Center The Affiliated Drum Tower Hospital of Nanjing University Medical SchoolNanjing 210008China Shanghai Fifth People’s Hospital of Fudan University Fudan UniversityShanghai 200240China Department of Animal Science and Technology Nanjing Agricultural UniversityNanjing 210014China Key Laboratory for Tibet Plateau Phytochemistry of Qinghai Province College of PharmacyQinghai University for NationalitiesXining 810007China Pediatric Research Institute Children’s Hospital Affiliated to Shandong University(Jinan Children’s Hospital)Jinan 250022China

Polycystic ovary syndrome(PCOS)is the leading cause of anovulatory *** understanding of the ovulation drivers hinders PCOS ***,we report that follicle stimulating hormone(FSH)controls follicular fluid(FF)glutamine levels to determine *** ovulation starts from FF-exposing granulosa cell(GC)*** glutamine,which decreases in pre-ovulation porcine FF,elevates in PCOS patients ***-glutamine chow to elevate FF glutamine inhibits mouse GC apoptosis and induces hormonal,metabolic,and morphologic PCOS ***,follicle-development-driving FSH promotes GC glutamine synthesis to elevate FF glutamine,which maintain follicle wall integrity by inhibiting GC apoptosis through inactivating ASK1-JNK apoptotic *** and glutamine inhibit the rapture of cultured murine *** removal or ASK1-JNK pathway activation with metformin or AT-101 reversed PCOS traits in PCOS models that are induced with either glutamine or *** suggest that glutamine,FSH,and ASK1-JNK pathway are targetable to alleviate PCOS.

关键词： ovulation glutamine granulosa cells PCOS FSH

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基于蒙特卡罗模拟技术的风水火电发电系统的可靠性评估

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技术与市场 2024年第7期31卷 69-72,76页

作者：孙星南京南瑞继保工程技术有限公司江苏南京210000

基于顺序蒙特卡罗模拟(MCS)技术,将风能、水电和火电之间的协调纳入系统可靠性的评估中。首先,引入适当的能源指标来评估协调系统运行中可再生能源的利用率;其次,建立了由水力和火力单元组成IEEE-RTS79作为测试系统,将风电场集成在水电... 详细信息

基于顺序蒙特卡罗模拟(MCS)技术,将风能、水电和火电之间的协调纳入系统可靠性的评估中。首先,引入适当的能源指标来评估协调系统运行中可再生能源的利用率;其次,建立了由水力和火力单元组成IEEE-RTS79作为测试系统,将风电场集成在水电和火电的IEEE-RTS79系统中;最后,测试评估了风电、水力和火力机组的协调对整个系统的可靠性以及对风力和水力利用量的影响。研究结果表明:系统的可靠性和水库的储水量及水电机组数量有关,同时系统的可靠性随着风力渗透率的增加而提高。对改进的IEEE-RTS79可靠性系统的评估分析验证了评估模型的有效性,为电网及系统运行方式的规划提供重要参考。

关键词：风水火电蒙特卡罗模拟系统可靠性

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求MDS码权多项式的组合方法

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四川大学学报（自然科学版） 2024年第2期61卷 19-22页

作者：李岩孙久兴中国农业大学理学院北京100083

MDS码是一种满足Singleton界的好码.由于出色的编码能力,MDS码已得到广泛的应用.MDS码的权多项式由其参数[n,k,d]完全决定.本文利用容斥原理计算MDS码中不同Hamming权的码字个数,给出了MDS码权多项式的一个新证明.设d≤w≤n,从n个位置... 详细信息

MDS码是一种满足Singleton界的好码.由于出色的编码能力,MDS码已得到广泛的应用.MDS码的权多项式由其参数[n,k,d]完全决定.本文利用容斥原理计算MDS码中不同Hamming权的码字个数,给出了MDS码权多项式的一个新证明.设d≤w≤n,从n个位置中任选d个构成集合S.本文证明:MDS码中支集为S且在S第一个位置为1的码字个数为∑^(w-d)_(j=0)(-1)^(j)(^(w-1)_(j))q^(w-d-j).证明的关键是对支集包含于S且在S第一个位置为1的码字集使用容斥原理,并利用MDS码校验阵中任意d-1列线性无关的性质.该证明直观揭示了MDS码权多项式中各项的组合意义.相较于教科书中的证明,本文的证明不使用Mac Williams恒等式.

关键词： MDS码权多项式容斥原理

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