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Hierarchical Semiconductor Oxide Photocatalyst:A Case of the SnO_2 Microflower

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Nano-Micro Letters 2013年第4期5卷 234-241页

作者： Yang Liu Yang Jiao Bosi Yin siwen Zhang Fengyu Qu Xiang Wu Key Laboratory for Photonic and Electronic Bandgap Materials Ministry of Education and College of Chemistry and Chemical Engineering Harbin Normal University

Hierarchically assembled SnO_2 microflowers were synthesized by a facile hydrothermal *** emission scanning electron microscope results showed these hierarchical nanostructures were built from two dimensional nanosheets with the thicknesses of about 50 nm. Photoluminescence spectrum of the asobtained products demonstrated a strong visual emission peak at 564 nm. The photochemical measurement results indicated that the as-prepared sample exhibits excellent photocatalytic performance. These three dimensional SnO_2 hierarchical nanostructures may have potential applications in waste water purification.

关键词： SnO2 Hierarchical structures Photocatalyst

服务行业人力资源薪酬体系管理与优化——以餐饮服务行业为例

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四川旅游学院学报 2025年第1期 36-39页

作者：崔宇鹏上海外国语大学上海201620

文章以处在高速发展时期的餐饮业为研究对象,以餐饮行业服务人员中出现的薪酬管理问题为研究背景,立足服务型行业薪酬的主要特点,分别根据薪酬体系的设计、整体薪酬的构成以及绩效指标的设定与绩效占比,对薪酬管理中出现的同工不同酬、... 详细信息

文章以处在高速发展时期的餐饮业为研究对象,以餐饮行业服务人员中出现的薪酬管理问题为研究背景,立足服务型行业薪酬的主要特点,分别根据薪酬体系的设计、整体薪酬的构成以及绩效指标的设定与绩效占比,对薪酬管理中出现的同工不同酬、员工对薪酬的满意程度低、绩效并没有在薪酬管理中发挥作用三个问题,进行了分析并给出了合理化的建议。

关键词：餐饮行业薪酬管理优化

Biodegradable implants based on photo-cross-linked aliphatic polycarbonates for long-acting contraception

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Journal of Materials Science & Technology 2023年第25期156卷 129-141页

作者： Zhipeng Hou Wei Xu siwen Chen Jing Guo Peng Li Jianshe Hu Liqun Yang Jing Chen Center for Molecular Science and Engineering College of ScienceNortheastern UniversityShenyang 110819China NHC Key Laboratory of Reproductive Health and Medical Genetics (China Medical University) Liaoning Research Institute of Family Planning (The Reproductive Hospital of China Medical University)Shenyang 110031China Department of Biomaterials Shengjing Hospital of China Medical UniversityShenyang 110004China Department of Obstetrics and Gynecology Shengjing Hospital of China Medical UniversityShenyang 110004China

In this study,a new class of biodegradable contraceptive implants was prepared via the UV irradiation molding method,among which,progestin levonorgestrel(LNG)was used as a model ***-cross-linked aliphatic polycarbonates(APCs),namely,poly(trimethylene carbonate-co-2,2′-dimethyltrimethylene carbonate)[P(TMC-co-DTC)]elastomers,were used as the drug delivery *** results obtained from the degradation experiments carried out in Sprague-Dawley(SD)rats showed that the cross-linked elastomer had the degradation characteristics of the surface erosion degradation mechanism,with no generation of acid degradation products,and excellent form-stability,which met the performance requirements of the matrix for a long-acting sustained-release delivery *** in vitro cytotoxicity tests and histological and immunohistochemical evaluations showed good biocompatibility and biosafety of the elastomer matrix material and contraceptive ***,the implant formulations were screened by in vitro release experiments,and their release kinetics were ***,in the evaluation study of the in vivo anti-fertility effect,the implants exhibited excellent dimensional stability and were degraded by a surface erosion *** achieved a stable and sustained release in female SD rats,maintaining a long-acting contraceptive duration of up to 4 *** contraceptive implants obtained in this study could be used to address the limitations of currently available formulations,which required secondary surgical removal and a single means of regulating drug release ***,these implants could provide a new option for birth control needs and may be of significance in reducing the incidence of induced abortion and protecting female fertility.

关键词： Aliphatic polycarbonates Photo-cross-linked Levonorgestrel Contraceptive implants Anti-fertility effects Sustained-release

Development and application of blade-coating technique in organic solar cells

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Nano Research 2023年第9期16卷 11571-11588页

作者： Xin Zhang Hong Zhang Shilin Li Linge Xiao siwen Zhang Bing Han Jiajie Kang Huiqiong Zhou China School of Engineering and Technology China University of Geosciences(Beijing)Beijing 100083China CAS Key Laboratory of Nanosystem and Hierarchical Fabrication National Center for Nanoscience and TechnologyBeijing 100190China School of Chemistry Beihang UniversityBeijing 100191China The Department of Thoraciccardio Surgery PLA Rocket Force Characteristic Medical CenterBeijing 100088China

Due to the characteristics of lower material waste,higher crystallinity,roll-to-roll compatibility,and high-throughput continuous processing,blade-coating has been widely applied in the preparation of large-area organic solar *** this paper,the technique of blade-coating is introduced,including the effects of blading speed,substrate temperature,and other technological innovations during the process of ***,the recent progress of blade-coating in organic solar cells is summarized and the active layer prepared by a blade-coating method is introduced in detail,including materials,processing methods,solvents,and *** interface layer and electrodes prepared by the blade-coating method are also ***,some perspectives on the blade-coating method are *** the foreseeable future,blade-coating will become the core of batch production of large-area organic solar cells,so as to make organic solar cells more competitive.

关键词： blade-coating printable organic solar cells large-area

UPF based autonomous navigation scheme for deep space probe

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Journal of Systems Engineering and Electronics 2008年第3期19卷 529-536页

作者： Li Peng cui Hutao cui Pingyuan Deep Space Exploration Research Center Harbin Inst. of Technology Harbin 150080 P. R. China

The autonomous "celestial navigation scheme" for deep space probe departing from the earth and the autonomous "optical navigation scheme" for encountering object celestial body are presented. Then, aiming at the conditions that large initial estimation errors and non-Gaussian distribution of state or measurement errors may exist in orbit determination process of the two phases, UPF (unscented particle filter) is introduced into the navigation schemes. By tackling nonlinear and non-Gaussian problems, UPF overcomes the accuracy influence brought by the traditional EKF (extended Kalman filter), UKF (unscented Kalman filter), and PF (particle filter) schemes in approximate treatment to nonlinear and non-Gaussian state model and measurement model. The numerical simulations demonstrate the feasibility and higher accuracy of the UPF navigation scheme.

关键词： control and navigation technology of aircraft nonlinear and non-Gaussian unscented particle filter autonomous orbit determination celestial navigation optical navigation.

Prior-Free Dependent Motion Segmentation Using Helmholtz-Hodge Decomposition Based Object-Motion Oriented Map

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Journal of Computer Science & Technology 2017年第3期32卷 520-535页

作者： cui-cui Zhang Zhi-Lei Liu School of Marine Science and Technology Tianjin University Tianjin 300072 China Tianjin Key Laboratory of Cognitive Computing and Application School of Computer Science and Technology Tianjin University Tianjin 300072 China

Motion segmentation in moving camera videos is a very challenging task because of the motion dependence between the camera and moving objects. Camera motion compensation is recognized as an effective approach. However, existing work depends on prior-knowledge on the camera motion and scene structure for model selection. This is not always available in practice. Moreover, the image plane motion suffers from depth variations, which leads to depth-dependent motion segmentation in 3D scenes. To solve these problems, this paper develops a prior-free dependent motion segmentation algorithm by introducing a modified Helmholtz-Hodge decomposition （HHD） based object-motion oriented map （OOM）. By decomposing the image motion （optical flow） into a curl-free and a divergence-free component, all kinds of camera-induced image motions can be represented by these two components in an invariant way. HHD identifies the camera-induced image motion as one segment irrespective of depth variations with the help of OOM. To segment object motions from the scene, we deploy a novel spatio-temporal constrained quadtree labeling. Extensive experimental results on benchmarks demonstrate that our method improves the performance of the state-of-the-art by 10%-20% even over challenging scenes with complex background.

关键词： prior-free dependent motion segmentation Helmholtz-Hodge decomposition (HHD) object-motion oriented map (OOM) quadtree labeling

Zinc Anode for Mild Aqueous Zinc-Ion Batteries: Challenges, Strategies, and Perspectives

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Nano-Micro Letters 2022年第3期14卷 32-78页

作者： Jinzhang Yang Bosi Yin Ying Sun Hongge Pan Wenping Sun Baohua Jia siwen Zhang Tianyi Ma Key Laboratory for Green Synthesis and Preparative Chemistry of Advanced Materials of Liaoning Province Institute of Clean Energy ChemistryCollege of ChemistryLiaoning UniversityShenyang 110036People’s Republic of China Institute of Science and Technology for New Energy Xi’an Technological UniversityXi’an 710021People’s Republic of China State Key Laboratory of Clean Energy Utilization School of Materials Science and EngineeringZhejiang UniversityHangzhou 310027People’s Republic of China Centre for Translational Atomaterials Swinburne University of TechnologyHawthornVIC 3122Australia

The rapid advance of mild aqueous zinc-ion batteries(ZIBs)is driving the development of the energy storage system *** the thorny issues of Zn anodes,mainly including dendrite growth,hydrogen evolution,and corrosion,severely reduce the performance of *** commercialize ZIBs,researchers must overcome formidable *** about mild aqueous ZIBs is still *** technical and scientific obstacles to designing Zn anodes with high stripping efficiency and long cycling life have not been ***,the performance of Zn anodes is a complex scientific issue determined by various parameters,most of which are often ignored,failing to achieve the maximum performance of the *** review proposes a comprehensive overview of existing Zn anode issues and the corresponding strategies,frontiers,and development trends to deeply comprehend the essence and inner connection of degradation mechanism and ***,the formation mechanism of dendrite growth,hydrogen evolution,corrosion,and their influence on the anode are ***,various strategies for constructing stable Zn anodes are summarized and discussed in detail from multiple *** strategies are mainly divided into interface modification,structural anode,alloying anode,intercalation anode,liquid electrolyte,non-liquid electrolyte,separator design,and other ***,research directions and prospects are put forward for Zn *** contribution highlights the latest developments and provides new insights into the advanced Zn anode for future research.

关键词： Zn-ion batteries Zn metal anode Dendrite Hydrogen evolution Corrosion

Near-infrared （NIR） controlled reversible cell adhesion on a responsive nano-biointerface

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Nano Research 2017年第4期10卷 1345-1355页

作者： Haijun cui CAS Key Laboratory of Bio-inspired Materials and Interracial Science CAS Center for Excellence in Nanoscience Technical Institute of Physics and Chemistry Chinese Academy of Sciences (CAS) Beijing 100190 China UniversityofChineseAcademyofSciences (UCAS) Beijing 100049 China Beijing National Laboratory for Molecular Sciences (BNLMS) Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China

Light-activated dynamic variations have promoted the development of smart interfaces, especially nano-biointerfaces. In this article, the near-infrared （NIR）- responsive surface for controlling cell adhesion was designed by grafting a thermal responsive polymer （poly（N-isopropylacrylamide）, PNIPAM） onto silicon nanowires （SiNWs） instead of the traditional photosensitive moieties. NIR induced the photothermal effect of the SiNWs, and the local heat induced thermodynamic phase transformation of PNIPAM. With the application of NIR radiation, the surface turned to a hydrophobic state, and restored to the hydrophilic state when NIR was switched off, leading to reversible cell adhesion and release. The switchable wettability of the surface and cell adhesion/release occurred efficiently even after 20 cycles. Proteins were anchored on the surface via hydrophobic interactions using NIR; further connection of a cell-capture agent helped in achieving specific cell capture. This dynamic control of cell adhesion via NIR may provide new clues for designing functional nano-biointerfaces.

关键词： cell adhesion photothermal effect nanostructures bio-interface hydrophobic interaction

Solubility measurement and prediction of phase equilibria in the quaternary system LiCl+NaCl+KCl+H2O and ternary subsystem LiCl+NaCl+H2O at 288.15 K

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Chinese Journal of Chemical Engineering 2020年第8期28卷 2137-2141页

作者： Ruizhi cui Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources Qinghai Institute of Salt LakesChinese Academy of SciencesXining 810008China

Using isothermal dissolution method,the phase equilibrium relationship in quaternary system LiCl+NaCl+KCl+H2O and the ternary subsystem LiCl+NaCl+H2O at 288.15 K were *** phase diagram of two systems was *** phase diagram of LiCl+NaCl+H2O system contains two solid phase regions of crystallization LiCl·2H2O and *** the phase diagram of LiCl+NaCl+KCl+H2O system,there are three crystallization regions:LiCl·2H2O,NaCl and KCl *** this paper,the solubilities of phase equilibria in two systems were calculated by Pitzer's model at 288.15 *** predicted phase diagrams generally agree with the experimental phase diagrams.

关键词： Underground brine Phase diagram Pitzer model Solubility prediction Lithium chloride