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Synergistic activation of smithsonite with copper-ammonium species for enhancing surface reactivity and xanthate adsorption

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International Journal of Mining Science and Technology 2023年第4期33卷 519-527页

作者： Wenjuan Zhao Bin Yang yahui yi Qicheng Feng Dianwen Liu State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization Faculty of Land Resource EngineeringKunming University of Science and TechnologyKunming 650093China Faculty of Metallurgical and Energy Engineering Kunming University of Science and TechnologyKunming 650093China Yunnan Key Laboratory of Green Separation and Enrichment of Strategic Mineral Resources Kunming University of Science and TechnologyKunming 650093China

Copper ions(Cu^(2+))are usually added to activate the sulfidized surface of zinc oxide minerals to enhance xanthate attachment using sulfidization xanthate flotation *** adsorption of Cu^(2+)and xanthate on the sulfidized surface was investigated in various systems,and its effect on the surface hydrophobicity and flotation performance was revealed by multiple analytical methods and experiments.X-ray photoelectron spectroscopy(XPS)and time-of-flight secondary ion mass spectrometry(To F-SIMS)characterization demonstrated that the adsorption of Cu^(2+)on sulfidized smithsonite surfaces increased the active Cu—S content,regardless of treatment in any activation *** sulfidized surface pretreated with NH_(4)^(+)-Cu^(2+)created favorable conditions for the adsorption of more Cu^(2+),significantly enhancing the smithsonite *** potential determination,ultraviolet(UV)-visible spectroscopy,Fourier transform-infrared(FT-IR)measurements,and contact angle detection showed that xanthate was chemically adsorbed on the sulfidized surface,and its adsorption capacity in various systems was illustrated from qualitative and quantitative *** comparison to the Na2S–Cu^(2+)and Cu^(2+)–Na2S–Cu^(2+)systems,xanthate exhibited a higher adsorption capacity on sulfidized smithsonite surfaces in NH_(4)^(+)-Cu^(2+)–Na2S–Cu^(2+)***,activation with Cu^(2+)–NH4+synergistic species prior to sulfidization significantly enhanced the mineral surface hydrophobicity,thereby increasing its flotation recovery.

关键词： Smithsonite surface reactivity Synergistic activation Copper-ammonium species Surface hydrophobicity Enhanced recovery

End-group modulation of phenazine based non-fullerene acceptors for efficient organic solar cells with high open-circuit voltage

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Journal of Energy Chemistry 2024年第1期88卷 461-468,I0011页

作者： yahui Zhang Yafeng Li Ruixiang Peng yi Qiu Jingyu Shi Zhenyu Chen Jinfeng Ge Cuifen Zhang Zheng Tang Ziyi Ge School of Materials Science and Engineering Shanghai UniversityShanghai 200444China Zhejiang Business Technology Institute Ningbo 315012ZhejiangChina Zhejiang Provincial Engineering Research Center of Energy Optoelectronic Materials and Devices Ningbo Institute of Materials Technology and EngineeringChinese Academy of SciencesNingbo 315201ZhejiangChina Center for Advanced Low-dimension Materials College of Materials Science and EngineeringDonghua UniversityShanghai 201620China

Phenazine-based non-fullerene acceptors(NFAs)have demonstrated great potential in improving the power conversion efficiency(PCE)of organic solar cells(OSCs).Halogenation is known to be an effective strategy for increasing optical absorption,refining energy levels,and improving molecular packing in organic ***,a series of NFAs(Pz IC-4H,Pz IC-4F,Pz IC-4Cl,Pz IC-2Br)with phenazine as the central core and with/without halogen-substituted(dicyanomethylidene)-indan-1-one(IC)as the electron-accepting end group were synthesized,and the effect of end group matched phenazine central unit on the photovoltaic performance was systematically *** photophysical and morphological analyses revealed that the PM6:Pz IC-4F blend involves efficient exciton dissociation,higher charge collection and transfer rates,better crystallinity,and optimal phase ***,OSCs based on PM6:Pz IC-4F as the active layer exhibited a PCE of 16.48%with an open circuit voltage(Voc)and energy loss of 0.880 V and 0.53 e V,***,this work demonstrated a promising approach by designing phenazine-based NFAs for achieving high-performance OSCs.

关键词： Organic solar cells Non-fullerene acceptor Phenazine Central core End group

Large-field objective lens for multi-wavelength microscopy at mesoscale and submicron resolution

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Opto-Electronic Advances 2024年第6期7卷 41-56页

作者： Xin Xu Qin Luo Jixiang Wang yahui Song Hong Ye Xin Zhang yi He Minxuan Sun Ruobing Zhang Guohua Shi School of Biomedical Engineering(Suzhou) Division of Life Sciences and MedicineUniversity of Science and Technology of ChinaHefei 230026China Jiangsu Key Laboratory of Medical Optics Suzhou Institute of Biomedical Engineering and TechnologyChinese Academy of ScienceSuzhou 215163China

Conventional microscopes designed for submicron resolution in biological research are hindered by a limited field of view,typically around 1 *** restriction poses a challenge when attempting to simultaneously analyze various parts of a sample,such as different brain *** addition,conventional objective lenses struggle to perform consistently across the required range of wavelengths for brain imaging in *** we present a novel mesoscopic objective lens with an impressive field of view of 8 mm,a numerical aperture of 0.5,and a working wavelength range from 400 to 1000 *** achieved a resolution of 0.74μm in fluorescent beads *** versatility of this lens was further demonstrated through high-quality images of mouse brain and kidney sections in a wide-field imaging system,a confocal laser scanning system,and a two-photon imaging *** mesoscopic objective lens holds immense promise for advancing multi-wavelength imaging of large fields of view at high resolution.

关键词： mesoscopic objective lens large field-of-view high resolution multi-wavelength wide-field microscopy confocal laser scanning microscopy

Research on Enterprise Finance Integration Model Based on Financial Sharing

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Proceedings of Business and Economic Studies 2024年第4期7卷 105-111页

作者： yahui Qu Jinyan yi Jiangsu University of Science and Technology Zhangjiagang Campus Zhangjiagang 215600China

This article elaborates on the necessity of promoting the integration of business and finance based on financial sharing,analyzes the measures and effects of implementing business and finance integration in enterprises,points out the existing problems,and proposes strategies to optimize the integration from three aspects:building big data platforms,improving talent training plans,and improving financial shared information management platforms.

关键词： Financial sharing Financial integration China Mobile

基于两级排队系统的农产品拍卖分货人员优化配置

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昆明理工大学学报（自然科学版） 2021年第5期46卷 169-178页

作者：缪彬伊雅卉昆明理工大学管理与经济学院云南昆明650093

排队论常用于解决拥塞或阻滞问题,增加服务台是缓解排队、提高运作效率的有效方法,但势必会增加运营成本,效率和成本的折衷是研究难点.目前对于单级排队问题的研究较为成熟和完善,在借鉴相关成果基础上本文从效率和成本视角研究多级排... 详细信息

排队论常用于解决拥塞或阻滞问题,增加服务台是缓解排队、提高运作效率的有效方法,但势必会增加运营成本,效率和成本的折衷是研究难点.目前对于单级排队问题的研究较为成熟和完善,在借鉴相关成果基础上本文从效率和成本视角研究多级排队问题.基于K鲜切花拍卖市场的运营数据,建立拍卖分货的两级排队系统模型,利用Flexsim软件进行模拟运作,得到相关仿真数据.以分货时间、员工人数、有效工时、等待损失等指标作为依据,计算两级分货作业的总成本,综合考虑效率和成本得到人员优化配置方案.仿真结果表明,优化方案可以有效提高拍市的分货效率和服务水平、降低分货作业的总成本,研究结果可以为同类多级排队系统的人员或服务台配置提供实践指导和研究参考.

关键词：拍卖市场农产品拍卖多级排队人员配置分货成本

First-line penpulimab(an anti-PD1 antibody)and anlotinib(an angiogenesis inhibitor)with nab-paclitaxel/gemcitabine(PAAG)in metastatic pancreatic cancer:a prospective,multicentre,biomolecular exploratory,phase II trial

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Signal Transduction and Targeted Therapy 2024年第7期9卷 2960-2969页

作者： Huizi Sha Fan Tong Jiayao Ni yi Sun yahui Zhu Liang Qi Xiaoqin Li Wei Li Yan Yang Qing Gu Xing Zhang Xiaoxuan Wang Chan Zhu Dongsheng Chen Baorui Liu Juan Du The Comprehensive Cancer Center Nanjing Drum Tower HospitalAffiliated Hospital of Medical SchoolNanjing University&Clinical Cancer Institute of Nanjing UniversityNanjingChina The Comprehensive Cancer Center Nanjing Drum Tower HospitalClinical College of Traditional Chinese and Western MedicineNanjing University of Chinese MedicineNanjingChina Department of Oncology The Affiliated Hospital of Jiangsu UniversityZhenjiangChina Department of Oncology The First Affiliated Hospital of Soochow UniversitySuzhouChina Department of Oncology The Affiliated Jiangning Hospital of Nanjing Medical UniversityNanjingChina National Institute of Healthcare Data Science at Nanjing University NanjingChina State Key Laboratory of Neurology and Oncology Drug Development Jiangsu Simcere Diagnostics Co.Ltd.Nanjing Simcere Medical Laboratory Science Co.Ltd.NanjingChina

Metastatic pancreatic cancer(mPC)has a dismal ***,we conducted a prospective,multicentre,single-arm,phase II trial evaluating the efficacy and safety of penpulimab and anlotinib in combination with nab-paclitaxel/gemcitabine(PAAG)in patients with first-line mPC(NCT05493995).The primary endpoints included the objective response rate(ORR)and disease control rate(DCR),while secondary endpoints encompassed progression-free survival(PFS),overall survival(OS),and *** 66 patients analysed for efficacy,the best response,indicated by the ORR,was recorded at 50.0%(33/66)(95%CI,37.4–62.6%),with 33 patients achieving partial response(PR).Notably,the DCR was 95.5%(63/66,95%CI,87.3–99.1%).The median PFS(mPFS)and OS(mOS)were 8.8(95%CI,8.1–11.6),and 13.7(95%CI,12.4 to not reached)months,*** 3/4 treatment-related adverse events(TRAEs)were reported in 39.4%of patients(26/66).In prespecified exploratory analysis,patients with altered SWI/SNF complex had a poorer ***,low serum CA724 level,high T-cell recruitment,low Th17 cell recruitment,and high NK CD56dim cell scores at baseline were potential predicative biomarkers for more favourable *** conclusion,PAAG as a first-line therapy demonstrated tolerability with promising clinical efficacy for *** biomolecular findings identified in this study possess the potential to guide the precise clinical application of the triple-combo regimen.

关键词： CA724 prospective centre

美国教育研究的历史教训及其对中国同行的警示

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外国教育研究 2010年第9期37卷 27-33页

作者：冉亚辉易连云西南大学教育学院重庆北碚400715

美国教育研究的基本特点是:阵容庞大却无地位,人员众多却无严格的学术标准,影响范围极广但影响力却很低。其经验教训主要有:教师、教育的地位与教育研究唇齿相依;教育研究的地位与影响力受专业团队建设质量的影响;教育研究自身的松散可... 详细信息

美国教育研究的基本特点是:阵容庞大却无地位,人员众多却无严格的学术标准,影响范围极广但影响力却很低。其经验教训主要有:教师、教育的地位与教育研究唇齿相依;教育研究的地位与影响力受专业团队建设质量的影响;教育研究自身的松散可能会降低专业的威望和影响力;教育理论与实践的关系需谨慎,摇摆不定会造成学术地位的降低;教育研究需要注意对社会政策、政治的影响力。以美国教育研究的历史为鉴,可以给我国教育研究同行以经验,促使我们更理性地思考我国教育研究的现状、教育研究的问题以及教育学界的前景。

关键词：美国教育教育研究教师历史经验

Highly efficient solution-processed organic photovoltaics enabled by improving packing behavior of organic semiconductors

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Science China Chemistry 2024年第3期67卷 890-897页

作者： Xinyue Cui Hongxiang Li Hao Lu Yuqiang Liu Guangliu Ran Rui Liu Huarui Zhang Xueqing Ma Dawei Li yi Lin Jifa Yu Wenkai Zhang Lei Cai yahui Liu Pei Cheng Andong Zhang Zaifei Ma Guanghao Lu Zhishan Bo College of Textiles and Clothing State Key Laboratory of Bio-fibers and Eco-textilesQingdao UniversityQingdao 266071China State Key Laboratory of Polymer Materials Engineering College of Polymer Science and EngineeringSichuan UniversityChengdu 610065China Department of Physics and Applied Optics Beijing Area Major Laboratory Center for Advanced Quantum StudiesBeijing Normal UniversityBeijing 100875China Shandong Province Key Laboratory of Medical Physics and Image Processing Technology School of Physics and ElectronicsShandong Normal UniversityJinan 250014China Beijing Key Laboratory of Energy Conversion and Storage Materials College of ChemistryBeijing Normal UniversityBeijing 100875China Center for Advanced Low-Dimension Materials State Key Laboratory for Modification of Chemical Fibers and Polymer MaterialsCollege of Materials Science and EngineeringDonghua UniversityShanghai 201620China Frontier Institute of Science and Technology Xi'an Jiaotong UniversityXi'an 710054China

Solution processability is a unique property of organic semiconductors. The compact and regular π-π stacking between molecules is paramount in the performance of organic optoelectronic devices. However, it is still a challenge to improve their stacking quality without sacrificing the solution-processability from the aspect of materials design. Here, delicately engineered additives are presented to promote the formation of ordered aggregation of conjugated molecules by regulating their nucleation and growth dynamics. Intriguingly, the long-chain BTP-eC9-4F molecules can realize ordered aggregation comparable to short-chain ones without sacrificing processability. The domain size of BTP-eC9-4F aggregation is enlarged from 24.2 to 32.2 nm in blend *** exciton diffusion and charge transport become faster, contributing to the suppression of recombination losses. As a result, a power conversion efficiency of 19.2% is achieved in D18:BTP-eC9-4F based organic photovoltaics. Our findings demonstrate a facile strategy to improve the packing quality of solution-processed organic semiconductors for high-efficiency photovoltaics and beyond photovoltaics.

关键词： organic semiconductor organic photovoltaic charge transport solution processability

防微杜渐与自由发展两种德育模式的对立——中美学校道德教育比较研究

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外国教育研究 2007年第11期34卷 49-53页

作者：冉亚辉易连云西南大学教育学院重庆400715

中国道德教育的核心理念是防微杜渐,两大核心价值是平等与和谐,但是这是以部分地减少个体自由为代价换来社会的和谐。美国道德教育的核心理念是自由发展,两大核心价值是平等和自由,美国道德教育给予个体充分的自由,但自由的代价由整个... 详细信息

中国道德教育的核心理念是防微杜渐,两大核心价值是平等与和谐,但是这是以部分地减少个体自由为代价换来社会的和谐。美国道德教育的核心理念是自由发展,两大核心价值是平等和自由,美国道德教育给予个体充分的自由,但自由的代价由整个社会承担。从中国价值观的角度看,美国式的道德教育对学生个体的发展不负责任;而从美国价值观的角度看,中国式的道德教育本身违背道德。

关键词：中国美国道德教育防微杜渐自由发展