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Z-scheme Bi_(4)O_(5)Br_(2)/NH_(2)-MIL-125(Ti)heterojunctions enable exceptional visible photocatalytic degradation of organic pollutant

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Rare Metals 2024年第7期43卷 3161-3172页

作者： Feng Huang Muhammad Humayun Gang Li Ting-Ting Fan Wen-Lin wang Yu-Lin Cao Anton Nikiforov chun-dong wang Jing wang Key Laboratory of Analytical Science and Technology of Hebei Province Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of EducationState Key Laboratory of New Pharmaceutical Preparations and ExcipientsCollege of Chemistry and Materials ScienceHebei UniversityBaoding071002China Energy Water and Environment LabCollege of Humanities and SciencesPrince Sultan University11586 RiyadhSaudi Arabia Baoding Green Yijia Environmental Protection Technology Ltd Baoding 071051China Physics Laboratory Industrial Training CenterShenzhen Polytechnic UniversityShenzhen 518055China Department of Applied Physics Ghent University9000 GhentBelgium School of Integrated Circuits Wuhan National Laboratory for OptoelectronicsHuazhong University of Science and TechnologyWuhan 430074China

One key strategy to enhance photocatalytic performance is to improve the transfer and separation efficiency of photogenerated carriers by building optimized ***,novel Bi_(4)O_5Br_(2)/NH_(2)-MIL-125(Ti)Z-scheme heterojunctions are fabricated and used as photocatalysts for organic pollutant *** NH_(2)-MIL-125(Ti)nanosheets are exfoliated via a self-developed alkali solution stripping approach and then uniformly decorated on Bi_(4)O_(5)Br_(2).The as-prepared Bi_(4)O_(5)Br_(2)/NH_(2)-MIL-125(Ti)presents more than 90%degradation of various pollutants,outperforming the counterpart individual *** various characterization results suggest that the enhanced degradation rate is due to the more intimate face-to-face interfacial contact of the lamellar Z-scheme heterojunction materials,in which the migration path of carriers from the material's interior to the surface can be reduced,in turn enhancing migration efficiency and separation capability significantly.A possible photocatalytic reaction mechanism is proposed based on the photoelectric behaviors,radical trapping experiments and liquid chromatography mass spectrometry *** work promotes the development of new photocatalytic materials for heterojunctions with face-to-face interfacial contacts,as well as the effective purification of wastewater in environmental remediation.

关键词： Z-scheme heterojunctions Photocatalysis Alkaline solution stripping Bi_(4)O_(5)Br_(2) NH_(2)-MIL-125(Ti)

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Spin-Polarization of Ferroelectric Supperlattice with Spin-1/2 Transverse Ising Model

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Communications in Theoretical Physics 2011年第6期55卷 1024-1028页

作者： wang chun-dong TENG Bao-Hua LU Zhen-Zhen KWOK So-Ying Center of Super-Diamond and Advanced Films （COSDAF） and Department of Physics and Materials Science City University of Hong Kong Hong Kong China School of Physical Electronics University of Electronic Science and Technology of China Chengdu 610054 China

By using the simple decoupling approximation to Fermi-type Green＇s function for the transverse Ising model under pseudospin theory, we systemically study the influence of different exchange interactions （transverse fields） of the two distinct materials on the polarization and Curie temperature of finite alternating superlattice. Meanwhile, we analyze the effect of the whole parameters of the top surface, present their influence on the polarization of each layer （including the mean polarization of the whole ferroeleetric superlattiee） and on the Curie temperature. The results show the ratio of the exchange interactions （the transverse fields）, which are of the two alternating materials have deeply impact on the polarization and Curie temperature of the supperlattice. Moreover, the top surface also has great influence on the whole ferroelectric superlattice.

关键词： ferroelectric superlattice spin-polarization

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Study of Defect-Layers Effect in Ferroelectric Thin Film with Transverse Ising Model

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Communications in Theoretical Physics 2011年第12期56卷 1057-1062页

作者： wang chun-dong TENG Bao-Hua Kwok So-Ying LU Zhen-Zhen YUEN Muk-Fung Center of Super-Diamond and Advanced Films （COSDAF） and Department of Physics and Materials Science City University of Hong Kong Hong Kong SAR China School of Physical Electronics University of Electronic Science and Technology of China Chengdu 610054 China

By taking into account the two-spin interaction in the transverse Ising model （TIM）, the influence of the defect layers （including JB and ΩB） on the polarization and Curie temperature are calculated numerically, within the framework of the decoupling approximation under Green＇s function. The numerical results show that the polarization and Curie temperature will both become large sensitively due to the large values of JB and the small value of ΩB of the defect layers. Meanwhile, the dependence of the crossover values of the exchange interaction JA, the transverse field ΩA of the bulk material on the exchange interaction JB and the transverse field ΩB of the defect layers are shown in 3-Dimensional （3-D） figures for the first time. Moreover, the transition features of the ferroelectric thin film with defect layers are presented.

关键词： ferroelectrics phase transitions defect-layer

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Expression of HSV-1 ICP0 Antigen Peptide in Prokaryotic Cells and Preparation of Specific Antibody

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中国病毒学 2007年第4期22卷 280-286页

作者： Wei-zhong LI Wei CUN Long-ding LIU Yan-chun CHE Jie LUO Li-chun wang Cheng-hong dong Qian YANG Qi-han LI Institute of Medical Biology Chinese Academy of Medical Sciences and Peking Union Medical College Kunming Yunnan Province 650118 China

As an immediate-early protein of herpes simplex virus, infected-cell polypeptide 0 (ICP0) exhibits complicated interactions with host cells, and its regulatory function on gene expression is of great importance. Since the ICP0 encoding sequence contains many rare codons which are absent in ***, and ICP0 is highly unstable in prokaryotic cells, expression of entire ICP0 in prokaryotic cells has never been reported. In order to further investigate the function of ICP0, a recombinant plasmid was constructed by subcloning a cDNA fragment encoding an amino-terminal of 105 residues of the ICP0 protein into pGEX-5x-1 vector. The resulting GST-105 fusion antigen peptide was expressed with high efficiency in ***. Antibodies prepared after the immunization of mice with purified fusion protein can recognize not only the denatured ICP0 protein, but also the native ICP0 protein with normal biological conformation.

关键词： ICPO 抗原肽原核细胞抗体单纯疱疹病毒基因表达

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基于多尺度自回归图模型的SAR图像稳健滤波

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光电子．激光 2007年第4期18卷 471-474页

作者：王春东温显斌张桦天津理工大学计算机科学与技术学院天津300191

基于多尺度自回归(MAR)图模型的稳健递归M估计(RME)算法,给出一种新的合成孔径雷达(SAR)图像稳健滤波方法。首先根据SAR图像不同尺度下的统计相依性,构造SAR图像的多尺度图像序列;然后对多尺度SAR图像序列构造树上MAR图模型,利用其的RM... 详细信息

基于多尺度自回归(MAR)图模型的稳健递归M估计(RME)算法,给出一种新的合成孔径雷达(SAR)图像稳健滤波方法。首先根据SAR图像不同尺度下的统计相依性,构造SAR图像的多尺度图像序列;然后对多尺度SAR图像序列构造树上MAR图模型,利用其的RME算法得到SAR图像的滤波。研究表明,该算法不仅具有有效的可计算性,而且利用不同分辨率下SAR图像信息融合,在不同情况下都能得到较好的滤波结果。实验结果表明,本文提出的方法是稳健的。

关键词：稳健滤波合成孔径雷达(SAR)图像多尺度自回归(MAR)图模型斑点

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The Difference Between Urethrography And Endoscope On Length Of Urethral Stricture/Urethratresia

The Difference Between Urethrography And Endoscope On Length...

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第十五届全国泌尿外科学术会议

作者： Shuang Wei-bing,Liu chun, wang dong-wen, Zhang Hong 山西医科大学第一医院泌尿外科

Objective: To investigate accuracy on the Length Of Urethral Stricture / Urethratresia by Urethrography. Methods:Ten patients who had been diagnosed urethral stricture or urethratresia has been included into the research. We measured the length of urethral stricture / urethratresia in urethrography film before internal urethrotomy and measured the length of urethral stricture / urethratresia by endoscope during internal urethrotomy. Results : Compare with the length of urethral stricture / urethratresia by urethrography, there are 0.5-1.5cm ( average =0.7 cm ) longer than by endoscope. Conclusion:The length of urethral stricture/urethratresia measured by urethrography is longer than by endoscope. So we can eliminate the error by ureteroscope and enhance achievement ratio of the operation on urethral stricture/urethratresia.

关键词： Urethral Stricture Urethrography Endoscope

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Sensory quality evaluation for appearance of needle-shaped green tea based on computer vision and nonlinear tools

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2017年第6期18卷 544-548页

作者： chun-wang dong Hong-kai ZHU Jie-wen ZHAO Yong-wen JIANG Hai-bo YUAN Quan-sheng CHEN School of Food and Biological Engineering Jiangsu University Tea Research Institute Chinese Academy of Agricultural Sciences

Tea is one of the three greatest beverages in the world. In China, green tea has the largest consumption, and needle-shaped green tea, such as Maofeng tea and Sparrow Tongue tea, accounts for more than 40% of green tea （Zhu et al., 2017）. The appearance of green tea is one of the important indexes during the evaluation of green tea quality.

关键词：芽形绿茶外形品质图像特征非线性建模极限学习机(ELM)

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Grey self-organizing map based intrusion detection

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Optoelectronics Letters 2009年第1期5卷 64-68页

作者：王春东虞鹤峰王怀彬 School of Computer Science and Technology Tianjin University of Technology Tianjin Key Laboratory of Intelligence Computing and Novel Software Technology

Grey self-organizing map(GSOM) model is proposed and applied in the detection of *** the improvement of the weight adjustment using the GRC(grey relational coefficient),the training results of SOM get *** the detection of deny of service(DOS) attacks,this model can consider the relativity of the data set of DOS ***,the experiments on the DOS data set confirm their validities and feasibilities over this GSOM model.

关键词： Computer crime Conformal mapping

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打通型双串联与三串联柔性铰链设计与性能比较

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工程科学学报 2017年第5期39卷 762-768页

作者：邱丽芳王晶琳冷迎春王栋北京科技大学机械工程学院北京100083

平面折展柔顺机构(lamina emergent mechanisms,LEMs)的重要组成部分之一是柔性铰链,因此设计新型的平面折展扭转铰链(lamina emergent torsional joint,LET)能够对其运动起到十分关键的作用.本文提出了一种打通型LET柔性铰链,设计了打... 详细信息

平面折展柔顺机构(lamina emergent mechanisms,LEMs)的重要组成部分之一是柔性铰链,因此设计新型的平面折展扭转铰链(lamina emergent torsional joint,LET)能够对其运动起到十分关键的作用.本文提出了一种打通型LET柔性铰链,设计了打通型双串联柔性铰链和打通型三串联柔性铰链的两种结构形式,分别推导出了两种铰链的弯曲等效刚度计算公式.通过对设计实例的理论分析与有限元分析,验证了等效刚度计算公式的正确性.将外形尺寸相同的打通型双串联、三串联柔性铰链与外LET铰链进行了弯曲以及拉压性能的对比,结果表明,打通型三串联LET柔性铰链在拉压性能下降不明显的情况下,能够较大幅度地提升弯曲性能.

关键词：平面折展柔顺机构平面折展扭转铰链串联式柔性铰链等效刚度有限元

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Overview of in-situ oxygen production technologies for lunar resources

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International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 233-255页

作者： Youpeng Xu Sheng Pang Liangwei Cong Guoyu Qian dong wang Laishi Li Yusheng Wu Zhi wang College of Materials Science and Engineering Shenyang University of TechnologyShenyang 110870China CAS Key Laboratory of Green Process and Engineering National Engineering Research Center for Green Recycling of Strategic Metal ResourcesInstitute of Process EngineeringChinese Academy of SciencesBeijing 100190China Innovation Academy for Green Manufacture Chinese Academy of SciencesBeijing 100190China School of Chemical Engineering University of Chinese Academy of SciencesBeijing 100049China

The rich resources and unique environment of the Moon make it an ideal location for human expansion and the utilization of extraterrestrial ***,crucial for supporting human life on the Moon,can be extracted from lunar regolith,which is highly rich in oxygen and contains polymetallic *** oxygen and metal extraction can be achieved using existing metallurgical ***,the ample reserves of water ice on the Moon offer another means for oxygen *** paper offers a detailed overview of the leading technologies for achieving oxygen production on the Moon,drawing from an analysis of lunar resources and environmental *** delves into the principles,processes,advantages,and drawbacks of water-ice electrolysis,two-step oxygen production from lunar regolith,and one-step oxygen production from lunar *** two-step methods involve hydrogen reduction,carbothermal reduction,and hydrometallurgy,while the one-step methods encompass fluorination/chlorination,high-temperature decomposition,molten salt electrolysis,and molten regolith electrolysis(MOE).Following a thorough comparison of raw materials,equipment,technology,and economic viability,MOE is identified as the most promising approach for future in-situ oxygen production on the *** the corrosion characteristics of molten lunar regolith at high temperatures,along with the Moon's low-gravity environment,the development of inexpensive and stable inert anodes and electrolysis devices that can easily collect oxygen is critical for promoting MOE technology on the *** review significantly contributes to our understanding of in-situ oxygen production technologies on the Moon and supports upcoming lunar exploration initiatives.

关键词： lunar resources in-situ oxygen production space metallurgy molten lunar regolith electrolysis

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