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Effect of diaminocyclohexane tetra-acetic acid on rapid growth and optical performances of potassium dihydrogen phosphate crystals

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Effect of diaminocyclohexane tetra-acetic acid on rapid grow...

Structural and microwave absorption properties of CoFe_(2)O_(4)/residual carbon composites

第十六届全国晶体生长与材料学术会议

作者： sheng-jun zhu sheng-Lai WANG Jian-xu Ding Guang-Xia LIU Wen-Jie LIU State Key Laboratory of Crystal Materials and Institute of Crystal Materials Shandong University

By altering the concentration of diaminocyclohexane tetra-acetic acid(DCTA)additive in the growth solution,a series of potassium dihydrogen phosphate(KDP)crystals were obtained at growth rate of 10-15mm/day by the"point seed"rapid growth *** measurement result of laser polarization interference showd that,with increasing the concentration of DCTA,the growth critical supersaturationσ(dead zone)for(100)face of KDP crystals was decreased continually,while the growth rate for(100)face of KDP crystals was firstly increased and then decreased,passing through a *** amount of DCTA doped enhanced the stability of growth solution,increased the UV transmittance and the laser damage threshold,and reduced the light scattering of rapidly grown KDP crystals,which is benefit to improve the rapid growth and optical quality of KDP ***,1 excess addition of DCTA had the adverse *** effect of DCTA on the rapid growth and optical properties of KDP crystals is attributed to the chelation of DCTA with impurity metal ions and adsorption of DCTA molecules onto the face of KDP crystals.

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International Journal of Minerals,Metallurgy and Materials 2025年第1期32卷 221-232页

作者： Yuanchun Zhang shengtao Gao Xingzhao Zhang Dacheng Ma Chuanlei zhu jun He Joint National-Local Engineering Research Centre for Safe and Precise Coal Mining Anhui University of Science and TechnologyHuainan 232001China School of Chemical and Blasting Engineering Anhui University of Science and TechnologyHuainan 232001China

Electromagnetic interference,which necessitates the rapid advancement of substances with exceptional capabilities for bsorbing electromagnetic waves,is of urgent concern in contemporary *** this work,CoFe_(2)O_(4)/residual carbon from coal gasification fine slag(CFO/RC)composites were created using a novel hydrothermal *** mechanisms for microwave absorption,including conductive loss,natural resonance,interfacial dipole polarization,and magnetic flux loss,are involved in these ***,compared with pure residual carbon materials,this composite offers superior capabilities in microwave *** 7.76GHz,the CFO/RC-2 composite achieves an impressive minimum reflection loss(RL_(min))of-43.99 dB with a thickness of 2.44 ***,CFO/RC-3 demonstrates an effective absorption bandwidth(EAB)of up to 4.16 GHz,accompanied by a thickness of *** study revealed the remarkable capability of the composite to diminish electromagnetic waves,providing a new generation method for microwave absorbing materials of superior quality.

关键词： coal gasification slag residual carbon hydrothermal method microwave absorption CoFe_(2)O_(4)

Veratramine, a natural modulator of AP-1-dependent gene transcription via direct binding the programmable DNA

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Veratramine, a natural modulator of AP-1-dependent gene tran...

Effect of order–disorder transition on thermodynamic and electronic properties of σ and χ phases in W–Re alloy: the first-principles calculation

中国化学会第十届全国天然有机化学学术会议

作者： Kang-Dong Liu Fang Bai jun-sheng zhu Jia-Wei Wang Wei-Dong Zhang Zi-Gang Dong Hong-Lin Li The Basic Medical College Zhengzhou University Department of Engineering Mechanics State Key Laboratory of Structural Analysis for Industrial Equipment Dalian University of Technology Shanghai Key Laboratory of New Drug Design School of Pharmacy East China University of Science and Technology Department of Phytochemistry School of Pharmacy Second Military Medical University The Hormel Institute University of Minnesota

＜正＞The transcription factor activator protein 1（AP-1）is involved in many cell procedure,including cell proliferation,transformation,epithelial-mesenchymal transition and apoptosis,by regulating a variety of protein-coding *** targeting AP-1 have promising use in cancer and inflammation *** we report a potent natural modulator,named veratramine,which

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Tungsten 2025年第1期7卷 195-213页

作者： Zhi-Peng zhu Dian Jia William Yi Wang jun-Lei Yin Xing-Yu Gao Shu-Feng Yang Hai-Feng Song Jin-Shan Li State Key Laboratory of Solidification Processing Northwestern Polytechnical University Laboratory of Computational Physics Institute of Applied Physics and Computational Mathematics School of Metallurgical and Ecological Engineering University of Science and Technology Beijing

The Tungsten-Rhenium(W-Re) alloys,celebrated for their high melting point,strength at elevated temperatures,electrical resistivity,and radiation resistance,have been widely utilized in high-temperature components,aerospace,electronics,and nuclear *** constituents of the topologically close-packed(TCP) phases,the sigma phase(σ) and chi phase(χ) formed within W-Re alloys wield considerable influence on the mechanical properties and the stability of the *** calculations were utilized in the present work to explore the structural,thermodynamic,and electronic properties of both ordered and disordered configurations within the σ and χ phases,culminating in a systematic elucidation of the higher phase stability exhibited by the ordered *** is found that the bulk modulus of these two phases is directly proportional to the concentration of Re in the alloy,while the equilibrium volume is inversely *** thermodynamic parameters of the σ and χ phases are calculated via the mean-field potential *** similar trends observed in the isobaric heat capacity,enthalpy increment,and entropy change curves for these two phases suggest they possess comparable thermodynamic *** is noteworthy that the contribution of ionic vibrations predominantly affects the isobaric heat capacity,while the contribution of thermal electronic excitations increases linearly with *** the structure and thermodynamic properties of TCP phases in W-Re alloys at low temperatures has profound significance for optimizing material performance,microstructures features,establishing theoretical foundations,and predicting material behavior.

关键词： First-principles calculations Phase stability TCP phases Thermodynamic properties W–Re alloy

Wetland and habitat dynamics in the evolving landscape of the Middle Yangtze River Basin

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Journal of Geographical Sciences 2025年第1期35卷 88-111页

作者： YANG Peng SUN Kaiya zhu Yanchao XIA jun HUANG Heqing SONG Jingxia SHI Xiaorui LU Xixi Hubei Key Laboratory of Regional Ecology and Environmental Change School of Geography and Information Engineering China University of Geosciences Department of Geography National University of Singapore State Key Laboratory of Water Resources and Hydropower Engineering Science Wuhan University

Wetlands play a critical role in the global environment. The Middle Yangtze River Basin(MYRB), known for its abundant wetland resources, has experienced notable changes resulting from the complex interplay of environmental factors. Therefore, we investigated the spatiotemporal characteristics of wetland ecological quality in the MYRB from 2001 to *** the random forest(RF) regression algorithm and patch-generated land-use simulation(PLUS) model, we forecasted variations in wetland habitat quality and their determinants under the Shared Socioeconomic Pathway-Representative Concentration Pathway(SSPRCP) framework from 2035 to 2095. The main findings are as follows:(1) The RF algorithm was optimal for land-use and land-cover(LULC) classification in the MYRB from 2001 to 2020,when notable changes were observed in water bodies and buildings. However, the forested area exhibited an increase and decrease of 3.9% and 1.2% under the SSP1-2.6 and SSP5-8.5 scenarios, respectively, whereas farmland exhibited a diminishing trend.(2) Wetlands were primarily concentrated in the central and eastern MYRB, with counties in the southwest exhibiting superior ecological-environmental quality from 2001 to 2020. Notably,wetland coverage revealed significantly high level, significant changes, frequent but relatively minor changes under the SSP1-2.6, SSP2-4.5, and SSP 5-8.5 scenarios, respectively.(3)Regions with lower habitat quality were primarily concentrated in urbanized areas characterized by frequent human activities, indicating a clear degradation in habitat quality across different scenarios. In conclusion, we established a foundational framework for future investigations into the eco-hydrological processes and ecosystem quality of watersheds.

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Studies on Biomimetic Total Synthesis of Chaetoglobins A and B

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Studies on Biomimetic Total Synthesis of Chaetoglobins A and...

Staged dendrite suppression for high safe and stable lithium-sulfur batteries

中国化学会第9届天然有机化学学术会议

作者： sheng Wang,zhu-jun Yao~* State Key Laboratory of Coordination Chemistry and Nanjing National Laboratory of Microstructures,School of Chemistry and Chemical Engineering,Nanjing University, 22 Hankou Road,Nanjing,Jiangsu 210093,China

＜正＞Chaetoglobins A and B（Fig.1） are two dimeric azaphilone-derived alkaloids with an unprecedented skeleton characterized from an endophytic fungus Chaetomium *** former exhibits significant cytotoxicity for potential anti-tumor drug *** to date, no synthesis has been completed and reported *** this presentation,we wish to report our

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Journal of Energy Chemistry 2025年第1期100卷 674-683页

作者： jun Jiang Zhenjie Lu Yanwen Ding Shujun Liu Zhijie Qi Tian Tang Yunfan Zhang Zhiyuan Ma Jingwen Sun Liang Xue Wenyao Zhang Pan Xiong Xin Wang junwu zhu Yongsheng Fu Key Laboratory for Soft Chemistry and Functional Materials of Ministry of Education Nanjing University of Science and Technology Jiangsu Pylon Battery Co.Ltd

The unavoidable dendrite growth and shuttle effect have long been stranglehold challenges limiting the safety and practicality of lithium-sulfur ***,we propose a dual-action strategy to address the lithium dendrite issue in stages by constructing a multifunctional surface-negatively-charged nanodiamond layer with high ductility and robust puncture resistance on polypropylene （PP） *** uniformly loaded compact negative layer can not only significantly enhance electron transmission efficiency and promote uniform lithium deposition,but also reduce the formation of dendrite during early deposition *** importantly,under the strong puncture stress encountered during the deterioration of lithium dendrite growth under limiting current,the high ductility and robust puncture resistance（145.88 MPa） of as-obtained nanodiamond layer can effectively prevent short circuits caused by unavoidable lithium *** Li||Li symmetrical cells assembled with nanodiamond layer modified PP demonstrated a stable cycle of over 1000 h at 2 mA cm-2with a polarization voltage of only 29.3 ***,the negative charged layer serves as a physical barrier blocking lithium polysulfide ions,effectively mitigating capacity *** improved cells achieved a capacity decay of only 0.042%per cycle after 700 cycles at 3 C,demonstrating effective suppression of dendrite growth and capacity attenuation,showing promising prospect.

关键词： Ductility

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竞争环境下双目标零售平台销售模式选择

管理工程学报 2025年第1期39卷 227-242页

作者：张冲朱祎宋君南京邮电大学管理学院江苏南京210003

电子商务行业发展迅速,具有“超越利润”战略导向以实现更广泛目标的组织正变得越来越普遍,兼顾消费者利益成为企业凸显竞争优势的方式。为此,本文构建由一个制造商和两个零售平台组成的两级供应链。其中,制造商和其中一个零售平台追求... 详细信息

电子商务行业发展迅速,具有“超越利润”战略导向以实现更广泛目标的组织正变得越来越普遍,兼顾消费者利益成为企业凸显竞争优势的方式。为此,本文构建由一个制造商和两个零售平台组成的两级供应链。其中,制造商和其中一个零售平台追求自身利润最大化,另外一个零售平台追求自身利润和消费者剩余的线性组合最大化,即考虑双目标最优。本文具体考虑两个零售平台分别选择转售模式或代理模式共四种情形,进而研究双目标零售平台销售模式选择问题,及其对供应链成员最优决策和供应链整体绩效的影响。结果表明:(1)在一定条件下,双目标零售平台能获得比竞争对手更高的利润;(2)当双目标零售平台选择转售模式时,无论其竞争对手选择哪种销售模式,其双目标策略都能使供应链总体利润得到优化;(3)当双目标零售平台的竞争对手选择代理模式时,其自身根据不同情况选择转售模式或者代理模式可以使两个零售平台的销售模式选择形成均衡。

关键词：双目标企业社会责任零售平台销售模式双渠道

FeCrNiCoCu合金疲劳性能及缺陷演变的分子动力学研究

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原子与分子物理学报 2025年第4期42卷 81-86页

作者：朱和军常州工业职业技术学院常州213164

疲劳失效是机械构件的重要失效形式之一,因此本文通过分子动力学模拟方法在应变量ε=0.08下,对高熵合金FeCrNiCoCu合金进行20次循环加载模拟,以探究了高熵合金FeCrNiCoCu合金的疲劳力学性能和组织演变.结果发现,在循环加载过程中,FeCrNi... 详细信息

疲劳失效是机械构件的重要失效形式之一,因此本文通过分子动力学模拟方法在应变量ε=0.08下,对高熵合金FeCrNiCoCu合金进行20次循环加载模拟,以探究了高熵合金FeCrNiCoCu合金的疲劳力学性能和组织演变.结果发现,在循环加载过程中,FeCrNiCoCu模型存在明显的循环软化和循环硬化现象,且循环软化和循环硬化交替出现.通过对模型组织分析发现每个循环周期结束后,有残余位错和层错,这些缺陷直接影响到下一周期的疲劳应力.通过对模型中总能量和无序原子百分比的统计分析可知,模型的总能量呈升高的趋势.模型中无序原子的百分比逐渐升高,最后稳定在0.09左右,无序原子对位错的生成和湮灭有直接的影响,进而影响循环硬化和循环软化.

关键词：循环加载分子动力学疲劳变形微观缺陷演化