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Solid-liquid Equilibria in the Quaternary System Na＋, K＋//Br-, B4O72--H2O at 298 K

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Chemical Research in Chinese Universities 2014年第5期30卷 844-847页

作者： cui Ruizhi College of Materials and Chemistry & Chemical Engineering Chengdu University of Technology Chengdu 610059 P R. China Mineral Resources Chemistry Key Laboratory of Sichuan Higher Education Institutions Chengdu 610059 P. R. China

According to the compositions of the underground gasfield brines in the west of Sichuan Basin, the solu- bilities and densities of the solid-liquid equilibria in the quaternary system Na＋, K＋//Br-, B4O72--H2O at 298 K were determined by the method of isothermal solution saturation. From the experimental data, the phase diagram, water content diagram and density-composition diagram were obtained. This quaternary system is of simple eutectic type, without double salt and solid solution. There are two invariant points, five univariant curves, four fields of crystalli- zation in the system. The equilibrium solid phases are Na2BaO7·10H20, K2B4O7·4H2O, NaBr·2H2O and KBr. Na2B4O7·10H2O has a larger crystallization field, and NaBr·2H2O has a smaller crystallization field. It is also found that bromide has the salting-out effect on borate in the quaternary system Na＋, K＋//Br-, B4O72--H2Oat 298 K.

关键词： Underground brine Phase equilibrium Solubility Potassium salt Borate Bromide

Synthesis, crystal structure, photodegradation kinetics and photocatalytic activity of novel photocatalyst ZnBiYO_4

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Journal of Environmental Sciences 2015年第3期27卷 51-61页

作者： Yanbing cui Jingfei Luan State Key Laboratory of Pollution Control and Resource Reuse School of the Environment Nanjing University

ZnBiYO4 was synthesized by a solid-state reaction method for the first time. The structural and photocatalytic properties of ZnBiYO4 were characterized by X-ray diffraction, scanning electron microscopy, X-ray photoelectron spectroscopy and UV-Vis diffuse reflectance. ZnBiYO4 crystallized with a tetragonal spinel structure with space group I41/A. The lattice parameters for ZnBiYO4 were a = b = 11.176479 A and c = 10.014323 A. The band gap of ZnBiYO4 was estimated to be 1.58 eV. The photocatalytic activity of ZnBiYO4 was assessed by photodegradation of methyl orange under visible light irradiation. The results showed that ZnBiY04 had higher catalytic activity compared with N-doped TiO2 under the same experimental conditions using visible light irradiation. The photocatalytic degradation of methyl orange with ZnBiYO4 or N-doped TiO2 as catalyst followed first-order reaction kinetics, and the first-order rate constant was 0.01575 and 0.00416 rain-1 for ZnBiYO4 and N-doped TiO2, respectively. After visible hght irradiation for 220 min with ZnBiYO4 as catalyst, complete removal and mineralization of methyl orange were observed. The reduction of total organic carbon, formation of inorganic products, SO24- and NO3^-, and evolution of CO2 revealed the continuous mineralization of methyl orange during the photocatalytic process. The intermediate products were identified using liquid chromatog- raphy-mass spectrometry. The ZnBiYO4/（visible light） photocatalysis system was found to be suitable for textile industry wastewater treatment and could be used to solve other environmental chemical pollution problems.

关键词： ZnBiYO4 and N-doped TiO2Methyl orangeVisible light irradiationPhotodegradation pathwayStructural properties

Research opportunities arising from measurement and estimation of quantum systems

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Control Theory and Technology 2018年第3期16卷 241-243页

作者： Wei cui School of Automation Science and Engineering South China University of Technology Guangzhou Guangdong 510640 China

With the advancement of quantum experimental technology, quantum computing has earned many attentions and made great development. Meanwhile, quantum measurement theory [1] has become an indispensable component of it, ultimately working for the quantum state estimation. Being tools for emerging quantum computing technology,those two areas provide many research opportunities.

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“Buckets effect”in the kinetics of electrocatalytic reactions

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Journal of Energy Chemistry 2024年第2期89卷 388-396,I0010页

作者： Haowen cui Yan-Xia Chen Hefei National Laboratory for Physical Sciences at Microscale Department of Chemical PhysicsUniversity of Science and Technology of ChinaHefei 230026AnhuiChina

In this study,we systematically investigated the effect of proton concentration on the kinetics of the oxygen reduction reaction(ORR)on Pt(111)in acidic *** results demonstrate a rectangular hyperbolic relationship,i.e.,the ORR current excluding the effect of other variables increases with proton concentration and then tends to a constant *** consider that this is caused by the limitation of ORR kinetics by the trace oxygen concentration in the solution,which determines the upper limit of ORR kinetics.A model of effective concentration is further proposed for rectangular hyperbolic relationships:when the reactant concentration is high enough to reach a critical saturation concentration,the effective reactant concentration will become a constant *** could be due to the limited concentration of a certain reactant for reactions involving more than one reactant or the limited number of active sites available on the *** study provides new insights into the kinetics of electrocatalytic reactions,and it is important for the proper evaluation of catalyst activity and the study of structureperformance relationships.

关键词： Oxygen reduction reaction Kinetics Zero order Rectangular hyperbolic relationship pH effect

Singularity problem of control moment gyro cluster with vibration isolators

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Chinese Journal of Aeronautics 2016年第1期29卷 238-247页

作者： cui Yinghui Zheng Gangtie School of Aerospace Tsinghua University

As powerful torque amplification actuators, control moment gyros （CMGs） are often used in the attitude control of many state-of-the-art high resolution satellites. However, the distur- bance generated by the CMGs can not only reduce the attitude stability of a satellite but also dete- riorate the performance of optic payloads. Currently, CMG vibration isolators are widely used to target this problem. The isolators can affect the singularity of the CMG system as they are placed between the CMGs and the satellite bus and provide additional freedoms to the CMG system due to their flexibility. The formulation of the output torque of a CMG is studied first considering the dynamic imbalance of its spin rotor and then the deformation angle as a result of the isolator＇s flex- ibility is calculated. With the additional freedoms, the influence of isolator on the singularity problem is studied and a new steering logic to escape from the singular states is proposed.

关键词： Satellite Singularity Steering logic Torque error Vibration isolation

Wear Mechanisms of High Chromium Iron Roll under Hot Rolling Conditions

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Journal of Iron and Steel Research International 1997年第1期4卷 46-51页

作者： cui Peiyong Central Iron and Steel Research Institute MMI

By using a reformed laboratory rolling mill,hot wear test under near service conditions has been carried out to examine the wear mechanisms of high chromium iron *** time after being rolled up to a given cycle,the worn morphology of roll surface was examined under SEM and occasionally by *** on rolling conditions and lasting of in-service time,various wear characteristics have been identified *** involves abrasive wear and oxidation wear for matrix phase,fatigue wear,polishing wear and grain pull-out wear for carbides,smear adhesive wear,chemical wear,and in extreme case,plasticity-dominated *** the same time,wear type is also discussed compatibly in terms of abrasive wear,fatigue wear,as well as chemical wear according to conventional *** only in an extreme situation,*** without cooling water,adhesive wear may partially be *** anytime under specified conditions,there are always several wear mechanisms occurring simultaneously,but usually only one of them can be identified as the dominant *** finally a wear mechanism figure can be depicted to qualitatively describe the relationship among them.

关键词： mill roll high-chromium iron wear wear mode

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Anti-programmed death 1 antibody in the treatment of coexistent Mycobacterium fortuitum and lung cancer: A case report

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World Journal of Clinical Cases 2022年第12期10卷 3801-3807页

作者： cui-cui Zhang Peng Chen Department of Thoracic Oncology Tianjin Medical University Cancer Institute and HospitalTianjin 300060China

BACKGROUND Nontuberculous mycobacterium(NTM) refers to all mycobacteria except Mycobacterium tuberculosis and Mycobacterium leprae, also known as environmental Mycobacterium. The patients with lung cancer and NTM are somewhat special;the two diseases are inevitably influenced by each other. It brings difficulties and challenges to the choice of treatment. Recently, cancer immunotherapy has been considered one of the pillars for the treatment of lung cancer. However, the clinical experience in the application of immune checkpoint inhibitors is scarce for lung cancer patients with pulmonary tuberculosis, and lung cancer with NTM is even more rare. Although it ameliorates lung cancer, immunotherapy with immune checkpoint inhibitors presents complications of infectious diseases, including tuberculosis and *** SUMMARY A 61-year-old male patient visited a doctor in May 2019. His admitting diagnoses were:(1) Cancer of the left lung with a pathological diagnosis of poorly differentiated non-small cell carcinoma, likely poorly differentiated adenocarcinoma, clinical stage Ⅲb(T3N3M0);and(2) Mycobacterium fortuitum(M. fortuitum) infection. We chose to proceed with pembrolizumab treatment. After two treatment cycles, a chest computed tomography scan showed a new irregular subpleural mass in the anterior segment of the left upper lobe of the lung, a reduction in the mediastinal enlarged lymph node, and no other obvious changes. Next, an ultrasound-guided biopsy of the new tumor was performed. Pathological examination showed that a large number of carbon particles were deposited in the alveolar tissue with histiocyte reaction and multinucleated giant cell formation. The tuberculosis(TB) specialist suggested that anti-TB therapy be combined with continued antitumor treatment. The patient continued to be treated with pembrolizumab. After 14 cycles, the lesion shrunk by 79%, there was no recurrence of M. fortuitum infection, and there were no intolerable adverse ***

关键词： Mycobacterium fortuitum Nontuberculous mycobacterium Non-small cell lung cancer Immune checkpoint inhibitors Case report

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基于客观赋权法的医用防护服舒适性评价

棉纺织技术 2025年第1期53卷 41-47页

作者：李健崔馨文黄倩倩崔文李俊东华大学服装与艺术设计学院上海200051 东华大学现代服装设计与技术教育部重点实验室上海200051 南京市计量监督检测院江苏南京210049

针对现有服装舒适性评价方法中缺乏数学定量评价的问题,提出采用无需指定指标权重的熵权-突变级数法,以克服舒适性评价过程中人为主观赋权的缺陷。从人体热生理、热心理和服装性能这3个维度出发,构建了较为全面的医用防护服舒适性评价... 详细信息

针对现有服装舒适性评价方法中缺乏数学定量评价的问题,提出采用无需指定指标权重的熵权-突变级数法,以克服舒适性评价过程中人为主观赋权的缺陷。从人体热生理、热心理和服装性能这3个维度出发,构建了较为全面的医用防护服舒适性评价指标体系。以4种实际着装工况为例,选取8个主要影响因素构建了着装舒适性指标体系,并进行实例验证。结果表明:服装舒适性受到服装类型与活动强度的综合作用,且在低劳动强度、低热阻、低湿阻条件下舒适性更高。认为:熵权-突变级数法综合考虑了各指标间的相关性,避免了传统评价方法对主观权重的依赖,为完善现有医用防护服舒适性的综合评价提供了参考依据。

关键词：医用防护服舒适性评价客观赋权法指标体系突变级数法

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Space-Time-Coding Digital Metasurfaces:Principles and Applications

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Research 2021年第1期2021卷 961-985页

作者： Lei Zhang Tie Jun cui State Key Laboratory of Millimeter Waves Southeast UniversityNanjing 210096China Institute of Electromagnetic Space Southeast UniversityNanjing 210096China Center for Intelligent Metamaterials Pazhou LaboratoryGuangzhou 510330China

Space-time-modulated metastructures characterized by spatiotemporally varying properties have recently attracted great interest and become one of the most fascinating and promising research *** the meantime,space-time-coding digital metasurfaces with inherently programmable natures emerge as powerful and versatile platforms for implementing the spatiotemporal modulations,which have been successfully realized and used to manipulate the electromagnetic waves in both the spectral and spatial *** this article,we systematically introduce the general concepts and working principles of space-time-coding digital metasurfaces and provide a comprehensive survey of recent advances and representative applications in this ***,we illustrate the examples of complicated wave manipulations,including harmonic beam control and programmable nonreciprocal *** fascinating strategy of space-time-coding opens the door to exciting scenarios for information systems,with abundant applications ranging from wireless communications to imaging and *** summarize this review by presenting the perspectives on the existing challenges and future directions in this fast-growing research field.

关键词： surfaces versatile directions