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Understanding amorphous PrO_(x)-based N-doped carbon catalyst as an efficient electrocatalyst for oxygen reduction reaction

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Journal of Rare Earths 2025年第1期43卷 73-80,I0003页

作者： Xiao Man Ying chang Shaohong Guo Meilin jia Jingchun jia Inner Mongolia Key Laboratory of Green Catalysis and Inner Mongolia Collaborative Innovation Center for Water Environment Safety College of Chemistry and Environmental ScienceInner Mongolia Normal UniversityHohhot010022China

The development of an e fficacious and easily prepared no nprecious metal electrocatalyst is crucial for the oxygen reduction reaction(ORR).This work used a dual template method to prepare the amorphous rare earth-based catalyst PrO_(x)-NC,and optimized the calcination temperature and *** PrO_(x)-NC-900 catalyst has high durability and activity and exhibits superior ORR performance in alkaline electrolytes with an onset potential(E_(0))of 0.96 V and a half-wave potential(E_(1/2))of 0.85 *** research results indicate that the ORR performance of rare earth oxide composite carbon catalysts can be improved by adjusting oxygen vacancies(Ov).In addition,high specific surface area,N rich defect *** oxygen vacancies,and the synergistic effect of oxygen vacancies and N-doped carbon interfacial layer play a significant part in the enhancement of *** performance of the zinc air battery assembled with PrO_(x)-NC-900 is significantly improved,and rare earth oxides and carbon frameworks originating from metal organic frameworks(MOFs)contribute to the oxygen electrocatalyst and electron transfer rate of the zinc air *** catalyst provides promising information for the development of rare earth metal oxide nanostructures as potential candidate materials for ORR in alkaline media.

关键词： Rare earths Metal-organic framework Oxygen reduction reaction Zn-air batteries

Metabolomics and network pharmacology reveal the mechanism of the jiawei Yangshen pill in treatment of cyclophosphamide-induced dyszoospermia in mice

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Traditional Medicine Research 2023年第1期8卷 1-11页

作者： Jing-Ning Yan Xiao-Qin Liu Xiang-Long Meng Xiao-Yan Zhang Qi Sheng Bo-Rui Guo Yan Li Kai-Han Li jia-dong chang Clinical College of Traditional Chinese Medicine Shanxi University of Chinese MedicineJinzhong 030619China College of Chinese Materia Medica and Food Engineering Shanxi University of Chinese MedicineJinzhong 030619China Shanxi Key Laboratory of Tradition Herbal Medicines Processing Shanxi University of Chinese MedicineJinzhong 030619China.

Background:The jiawei Yangshen pill enhances sperm ***,the pharmacological mechanism of action of the jiawei Yangshen pill remains *** study aimed to explore the therapeutic effect of the jiawei Yangshen pill in the treatment of dyszoospermia and study the underlying ***:A dyszoospermia model was established by injecting mice with cyclophosphamide(50 mg/kg)consecutively for 7 *** and pathological indicators of the testis and hormone levels were examined after 4 weeks of *** metabolomics using high-performance liquid chromatograph-mass spectrometry was performed on testis *** pharmacology analysis was used to construct an“ingredient-target-disease”interactive network,followed by metabolic pathway enrichment *** blotting was performed to examine the levels of the related ***:The jiawei Yangshen pill significantly increased the testis index,epididymal index,sperm count,and testosterone level,while concurrently decreasing sperm mortality and luteinizing hormone *** spermatogenic cells in the jiawei Yangshen pill-treated mice were well arranged with an increased *** different metabolites were *** blotting showed that the expression levels of p-anti-adenosine monophosphate-activated protein kinase/anti-adenosine monophosphate-activated protein kinase and p-protein kinase B/protein kinase B were significantly increased after the jiawei Yangshen pill treatment,whereas the expression levels of transforming growth factor-β1 and nuclear factor kappa B(p65)were remarkably ***:The jiawei Yangshen pill significantly improved testicular microcirculatory injury and overall metabolic levels in mice with dyszoospermia.

关键词： jiawei Yangshen pill dyszoospermia metabolomics network pharmacology

金融结构市场化转型对中国经济发展质量的影响研究

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统计与信息论坛 2020年第10期35卷 34-41页

作者：董嘉昌冯涛西安交通大学经济与金融学院陕西西安710061

基于经济高质量发展的时代要求,探讨中国金融结构市场化转型对经济发展质量提升的重要影响。首先,分析金融结构市场化转型的内在逻辑,揭示其对经济发展质量提升的影响机理。其次,利用2001—2017年中国省级层面数据,构建固定效应面板模... 详细信息

基于经济高质量发展的时代要求,探讨中国金融结构市场化转型对经济发展质量提升的重要影响。首先,分析金融结构市场化转型的内在逻辑,揭示其对经济发展质量提升的影响机理。其次,利用2001—2017年中国省级层面数据,构建固定效应面板模型实证考察金融结构对经济发展质量的影响。分析结果表明,金融结构的市场化转型能够显著促进中国经济发展质量的提升,但这种作用仅在东部地区显著,而在中西部地区并不明显。进一步对东部地区样本进行中介效应检验后发现,金融结构的市场化转型可以通过提高创新能力和加快产业升级两类影响机制促进经济发展质量提升。最后,从加强资本市场制度建设、推动多层次资本市场发展和完善银行部门治理体系等方面提出相应的政策建议。

关键词：金融结构经济发展质量创新能力产业升级

Advancements and challenges in esophageal carcinoma prognostic models:A comprehensive review and future directions

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World Journal of Gastrointestinal Oncology 2025年第2期17卷 311-314页

作者： jia Chen Qi-chang Xing Department of Clinical Pharmacy Xiangtan Central HospitalXiangtan 411100Hunan ProvinceChina The Affiliated Hospital Hunan UniversityChangsha 410082Hunan ProvinceChina

In this article,we comment on the article published by Yu et *** employing LASSO regression and Cox proportional hazard models,the article identified nine significant variables affecting survival,including body mass index,Karnofsky performance status,and tumor-node-metastasis *** firmly concur with Yu et al regarding the vital significance of clinical prediction models(CPMs),including logistic regression and Cox regression for assessment in esophageal carcinoma(EC).However,the nomogram's limitations and the complexities of integrating genetic factors pose *** integration of immunological data with advanced statistics offers new research ***-throughput sequencing and big data,facilitated by machine learning,have revolutionized cancer research but require substantial computational *** future of CPMs in EC depends on leveraging these technologies to improve predictive accuracy and clinical application,addressing the need for larger datasets,patientreported outcomes,and regular updates for clinical relevance.

关键词： Predictive model Machine learning Esophageal carcinoma Survival rate Factors

中国式现代化的结构特征、优化潜力和优化路径

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经济学家 2024年第10期 44-53页

作者：李佳霖董嘉昌西安交通大学公共政策与管理学院西安交通大学经济与金融学院

进入高质量发展阶段,我国经济面临调结构、稳增长、防风险等多重挑战,如何夯实现代化基础、不断推进中国式现代化是当前重要问题。现阶段我国社会主要矛盾已经转化为人民日益增长的美好生活需要和不平衡不充分的发展之间的矛盾,中国式... 详细信息

进入高质量发展阶段,我国经济面临调结构、稳增长、防风险等多重挑战,如何夯实现代化基础、不断推进中国式现代化是当前重要问题。现阶段我国社会主要矛盾已经转化为人民日益增长的美好生活需要和不平衡不充分的发展之间的矛盾,中国式现代化面临的挑战不仅是总量矛盾更是结构矛盾。必须立足于中国式现代化的客观实际与发展目标,厘清中国式现代化的结构特征,挖掘中国式现代化结构优化的潜力和路径。本文基于现阶段中国式现代化生产率提升、动能转换和供需调整方面的潜力,推动产业结构、投资结构、消费结构等持续优化,促进农业、工业和服务业高质量发展和现代化水平全面提升,以结构优化扎实推进中国式现代化建设。

关键词：中国式现代化结构特征优化潜力优化路径

数字经济与实体经济深度融合推动高质量发展的理论逻辑及实现路径

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陕西师范大学学报（哲学社会科学版） 2024年第4期53卷 106-118页

作者：李佳霖董嘉昌西安交通大学公共政策与管理学院陕西西安710049 西安交通大学经济与金融学院陕西西安710061

推进经济发展质量变革、效率变革、动力变革,满足人民日益增长的美好生活需要,实现高质量发展是新时代我国发展的目标和要求。数字时代带来重要历史机遇,通过数字经济与实体经济深度融合形成的新发展范式能够充分释放数字红利、促进传... 详细信息

推进经济发展质量变革、效率变革、动力变革,满足人民日益增长的美好生活需要,实现高质量发展是新时代我国发展的目标和要求。数字时代带来重要历史机遇,通过数字经济与实体经济深度融合形成的新发展范式能够充分释放数字红利、促进传统生产力向新质生产力转化,系统地、全面地、深入地推动高质量发展。通过数据要素深度融入实体经济、数字技术深度赋能实体经济、数字经济与实体经济深度互构,推动生产和创新范式全面变革,改善要素投入质量和要素配置效率并推动技术进步,全面提升生产效率和全要素生产率从而支撑高质量发展。同时能够对创新发展、协调发展、绿色发展、开放发展及共享发展产生深层作用,全面促进高质量发展。应强化数字基础设施,夯实基础;促进数字化转型,筑牢根基;化解协同障碍,畅通堵点;优化要素资源配置,健全保障,更好发挥以数字经济与实体经济深度融合推动高质量发展的作用。

关键词：数字经济实体经济深度融合高质量发展

Study and application of the influence of inclination angle on the cross-fusion mechanism of high gas thick coal seam

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International Journal of Mining Science and Technology 2025年第1期35卷 69-85页

作者： Pengxiang Zhao Zechen chang Shugang Li Risheng Zhuo Yongyong jia Qiudong Shao Wen Lei College of Safety Science and Engineering Xi'an University of Science and TechnologyXi’an 710054China Western Mining Gas Intelligent Extraction Engineering Research Centre Xi’an 710054China Xinjiang Coal and Coalbed Methane Engineering Technology Research Centre Urumqi 830091China Xinjiang Key Laboratory of Coal Mine Disaster Intelligent Prevention and Emergency Response Xinjiang Institute of EngineeringUrumqi 830023China Xinjiang Uygur Autonomous Region Coal Science Research Institute Urumqi 830091China Xinjiang changji Heze Tengda Mining Co. Ltd.Changji 831100China

In this study,to better decide the effect of coal seam dip angle upon the dynamic change of the crossfusion in gas transport and storage areas during the progress of working face in the high gas thick coal seam,a two-dimensional physical simulation experiment regarded as the theoretical research was conducted to properly explore the variation law of overburden *** results demonstrated that the boundary of the gas transport zone was located in the region of fracture *** boundary of the gas storage area was located in the abrupt penetration ***,according to the information theory,the state of the gas transport and storage areas was determined by the changing trend of the fracture rate and fracture *** mathematical representation model of the dip effect in gas transport and storage areas was *** criteria upon which the regional location of the gas transport area and gas storage area can be based were put *** cross-fusion evolution process of the dip effect in gas transport and storage areas was revealed as *** research results could provide guidance for realising directional and accurate gas extraction.

关键词： Coal seam dip angle Cross fusion High gas thick coal seam Overburden fracture Gas transport and storage areas

ChatGPT等生成式人工智能对我国经济高质量发展的双重影响及其应对

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陕西师范大学学报（哲学社会科学版） 2023年第4期52卷 44-54页

作者：冯涛董嘉昌李佳霖西安交通大学经济与金融学院陕西西安710061 西安交通大学公共政策与管理学院陕西西安710049

以ChatGPT、文言一心为代表的新一代人工智能正以前所未有的速度、广度、深度融入人类生产生活。生成式人工智能具有与决策式人工智能不同的特征及功能,对我国经济高质量发展产生更加显著的双重影响。一方面,可以通过创新驱动效应、生... 详细信息

以ChatGPT、文言一心为代表的新一代人工智能正以前所未有的速度、广度、深度融入人类生产生活。生成式人工智能具有与决策式人工智能不同的特征及功能,对我国经济高质量发展产生更加显著的双重影响。一方面,可以通过创新驱动效应、生产效率提升效应、产业转型升级效应等赋能效应促进经济高质量发展;另一方面,也可能造成劳动力市场冲击、市场垄断问题、国家安全风险和信息失真现象等深层风险,阻碍经济高质量发展。要正确认识、科学应对,在充分发挥其正面效应的同时积极防范负面冲击,引导其更好地服务我国经济高质量发展需要。

关键词： ChatGPT 生成式人工智能经济高质量发展

Metal-organic frameworks with dinuclear metal centers for synergistically boosting CO_(2) photoreduction

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Science China Chemistry 2025年第1期68卷 201-208页

作者： Hui-Feng Wang Wen-Jie Shi Yu-Xin Yang Bao-Xia dong Tong-Bu Lu Di-chang Zhong School of Chemistry and Chemical Engineering Yangzhou UniversityYangzhou 225002China Institute for New Energy Materials and Low Carbon Technologies School of Materials Science and EngineeringTianjin University of TechnologyTianjin 300384China

Dinuclear metal synergistic catalysis(DMSC)has been proved powerful in boosting CO_(2)reduction,while this has not been achieved in heterogeneous catalysts with long-range order *** this study,we,by introduction of metal catalytic centers into an indium-based metal-organic framework(MOF),obtained a series of isostructural In-MOFs,including three MOFs with mononuclear metal catalytic center(M-In),three MOFs with dinuclear homometallic catalytic centers(MM-In),and three MOFs with dinuclear heterometallic catalytic centers(MM’-In,M/M’=Co(II),Ni(II),Zn(II)).It was found that all these MOFs can serve as catalysts for photochemical CO_(2)reduction to *** with M-In,the catalytic activities of MM-In were obviously enhanced,and that of MM’-In was further significantly *** example,the CO yield of Co Zn-In reaches a record value of 12,700μmol g^(-1)h^(-1),which is 4.0,8.1,9.4,and 18.6-fold higher than that of Co Co-In,Zn Zn-In,Co-In,and Zn-In,***,the catalytic activities of Co Ni-In and Ni Zn-In also show different fold increase than those of corresponding dinuclear homometallic and mononuclear metallic *** results of control experiments and theoretical calculation reveal that the higher catalytic activities of MM-In over M-In can be ascribed to the DMSC effect,and the higher catalytic activity of MM’-In over MM-In can be ascribed to the strengthened DMSC *** work reveals the relationship between DMSC effect and bimetal centers in CO_(2)reduction,which provides new insights into the DMSC and paves a new way to design highly active catalysts for photochemical CO_(2)reduction.

关键词： metal-organic frameworks dinuclear metal centers synergistic catalysis CO_(2)reduction photocatalysis