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Progress in Natural Science:Materials International 2018年第6期28卷 683-688页

作者： Xuejuan Wan Haoqi Ke guanghui yang Jiaoning Tang Shenzhen Key Laboratory of Polymer Science and Technology College of Materials Science and Engineering Shenzhen University

Titanium dioxide（TiO2） is a common photocatalyst for organic pollutants degradation. However, in practical application, the poor adsorption capacity of pure TiO2seriously impeded its efficiency in the degradation of organic molecules. In this work, a series of hierarchical wrinkle mesoporous silica supported TiO2nano-composite particles（TiO2@WMS-COOH） were successfully prepared. Thanks to their high surface areas, large pore volumes and mesoporous structures, these materials showed high adsorption capacity and excellent photocatalytic performance towards dye molecules, which is comparable to or even better than commercial catalyst P25. Moreover, their photocatalytic efficiency can be further enhanced by increasing the calcination temperature during preparation process. Therefore it can be concluded that the TiO2@WMS-COOH particles may find promising applications in the photodegradation of organic pollutants.

关键词： Hierarchical wrinkled mesoporous silica Titanium dioxide Photocatalytic performance Organic pollutants

Physical Condition of Five Historical Land Deeds and Implications for Land Deed Paper Conservation

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Paper And Biomaterials 2023年第3期8卷 21-28页

作者： Xue Li guanghui yang Shanghai Museum Shanghai200003China Institute for Preservation and Conservation of Chinese Ancient Books Fudan UniversityShanghai200433China

This work presents five land deeds(S1-S5)collected by the Deng family,the land deed papers were produced by the Deng family,and the content was about the transaction of the Deng family paper production ***,whiteness,pH value,and fiber morphology of the deed papers were measured and analyzed,and the physical condition of the deeds was *** results showed S1 and S3 were severely damaged,S2 and S4 were moderately damaged,and S5 was mildly *** abovementioned deeds are physical witnesses to the history of Deng papermaking,and have high value as cultural relics and historical *** is hopefully this study could be used to inform scientific restoration plans,and provide a reference for the collection and protection of land deeds.

关键词： land deeds papermaking paper conservation

Backup roll contour of a SmartCrown tandem cold rolling mill

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Journal of University of Science and Technology Beijing 2008年第3期15卷 357-361页

作者： guanghui yang Jianguo Cao Jie Zhang Shenghui Jia Renwei Tan School of Mechanical Engineering University of Science and Technology Beijing Beijing 100083 China Wuhan Iron ＆ Steel （Group） Corporation Wuhan 430083 China

SmartCrown was a new system developed by VAI for improving the strip profile and flatness control first applied in 1700 mm tandem cold rolling mills at Wuhan Iron ＆ Steel （Group） Corporation （WISCO）. After tracing and testing, the application of the conventional crown backup roll matching the SmartCrown work roll of the production mill led to heavy and nonuniform wear, and the edge spalling of the backup roll often occurred. A 3-dimension finite element model of roll stacks was established, which was used to analyze the above-mentioned problems, and it was found that the main reason was the highly nonuniform contact pressure distribution between the work roll and the backup roll. A new FSR （flexible shape backup roll） was developed and applied in 1700 mm tandem cold rolling mills. A lot of good actual effects of FSR, such as evident improvement in profile and flatness of strips, non-occurring edge spalling, wear uniform, and remarkable decrease in roll consumption were validated by long-term industrial applications.

关键词： tandem cold rolling mills strips roll contour shape control finite element method

3D Product Display Based on Inventor Animation Design

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Instrumentation 2020年第1期7卷 33-41页

作者： CHEN Hua yang Hao yang guanghui School of Mechanical Engineering University of Science and Technology BeijingBeijing 100083

With the rapid development of internet technology,some innovative fashion product are increasingly showed in the way of three-dimensional virtual *** fashion jewelry as an example,the virtual 3D display method of product is studied by Inventor which is parametric 3D design software for efficient modeling and animation developed by the Autodesk *** discussing the methods of part feature creation and assembly design,the real simulation of the product is carried ***-dimensional animation techniques,such as fade animation,components animation and camera animation are used to depict product features and animation effects.

关键词： 3D Product Display Inventor Animation Design 3D Modeling

Structural insights into the Oryza sativa cation transporters HKTs in salt tolerance

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Journal of Integrative Plant Biology 2024年第4期66卷 700-708页

作者： Ran Gao Yutian Jia Xia Xu Peng Fu Jiaqi Zhou guanghui yang State Key Laboratory of Plant Environmental Resilience Frontiers Science Center for Molecular Design BreedingCollege of Biological SciencesChina Agricultural UniversityBeijing 100193China

The high-affinity potassium transporters(HKTs),selectively permeable to either Na^(+)alone or Na^(+)/K^(+),play pivotal roles in maintaining plant Na^(+)/K^(+)*** their involvement in salt tolerance is widely reported,the molecular underpinnings of Oryza sativa HKTs remain *** this study,we elucidate the structures of OsHKT1;1 and OsHKT2;1,representing two distinct classes of rice *** dimeric assembled OsHKTs can be structurally divided into four *** the dimer interface,a half-helix or a loop in the third domain is coordinated by the C-terminal region of the opposite ***,we present the structures of OsHKT1;5 salt-tolerant and salt-sensitive variants,a key quantitative trait locus associated with salt *** salt-tolerant variant of OsHKT1;5 exhibits enhanced Na^(+)transport capability and displays a more flexible *** findings shed light on the molecular basis of rice HKTs and provide insights into their role in salt tolerance.

关键词： HKT salt-tolerant structure

Criteria for Beverloo's scaling law

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Chinese Physics B 2019年第1期28卷 628-633页

作者： Sheng Zhang Ping Lin guanghui yang Jiang-Feng Wan Yuan Tian Lei yang Institute of Modern Physics Chinese Academy of Sciences

Beverloo's scaling law can describe the flow rate of grains discharging from hoppers. In this paper, we show that the Beverloo's scaling law is valid for varying material parameters. The flow rates from a hopper with different hopper and orifice sizes(D, D_0) are studied by running large-scale simulations. When the hopper size is fixed, the numerical results show that Beverloo's law is valid even if the orifice diameter is very large and then the criteria for this law are *** eliminate the effect of walls, it is found that the criteria can be suggested as D-D_0≥ 40 d or D/D_0≥ 2. Interestingly,it is found that there is still a scaling relation between the flow rate and orifice diameter if D/D_0 is fixed and less than *** the orifice diameter is close to the hopper size, the velocity field changes and the vertical velocities of grains above the free fall region are much larger. Then, the free fall arch assumption is invalid and Beverloo's law is inapplicable.

关键词： Beverloo’s law orifice diameter hopper size discrete element method

Intermolecular interactions governing the partition between particulate and gas phases for typical organic pollutants

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Chinese Science Bulletin 2007年第3期52卷 313-317页

作者： YU HaWing QIAO XianLiang yang Ping DING guanghui CHEN JingWen Department of Environmental Science and Technology Dalian University of Technology Dalian 116024 China

The partition coefficients between particulate and gas phases (Kp) for organic pollutants are of great importance to characterize the behavior of organic pollutants in atmosphere, and are basic data needed by ecological risk assessment. Partial least squares (PLS) regression with 16 theoretical molecular structural descriptors was used to develop polyparameter linear free energy relationship (LFER) model for Kp of 18 aliphatic hydrocarbons, 21 polycyclic aromatic hydrocarbons (PAHs), 16 polychlorinated biphenyls (PCBs) and 13 polychlorinated dibenzo-p-dioxins/dibenzofurans (PCDD/Fs). The obtained model has a good predictive ability and robustness, which can be used for estimating Kp of chemicals with similar structures. Intermolecular dispersive interactions play a leading role in governing Kp, fol-lowed by charge-transfer interactions and hindrance effects of molecular size. The respective models developed for different group compounds imply that the action mechanism is similar, and dipole-dipole and dipole-induced dipole interactions play a minor role in governing Kp of n-alkanes, PCBs and PCDD/Fs.

关键词：有机污染物颗粒污染物气相污染物分配系数分子间相互作用

Influence of an inserted bar on the flow regimes in the hopper

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Chinese Physics B 2021年第2期30卷 535-539页

作者： Yi Peng Sheng Zhang Mengke Wang guanghui yang Jiangfeng Wan Liangwen Chen Lei yang Institute of Modern Physics Chinese Academy of SciencesLanzhou 730000China University of Chinese Academy of Sciences Beijing 100049China East China University of Technology Nanchang 330000China

We investigated the influence of an inserted bar on the hopper flow *** geometrical parameters,size of upper outlet D1,size of lower outlet D0,and the height of bar H,are variables *** varying H we found three regimes:one transition from clogging to a surface flow and another transition from a surface flow to a dense *** the dense flow,the flow rate follows Beverloo’s law and there is a saturation of inclination of free surfaceθ.We plotted the velocity field and there is a uniform linear relation between the particle velocity and depth from the free *** also found that the required value of D_(1) to guarantee the connectivity of flow is little smaller than D_(0).For the transition from a surface flow to a dense flow,there is a jump of flow rate and the minimumθfor flowing is two degrees larger than the repose angle.

关键词： hopper flow inserted bar flow type transition free surface velocity distribution

Polyhexamethylene biguanide chemically modified cotton with desirable hemostatic,inflammation-reducing,intrinsic antibacterial property for infected wound healing

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Chinese Chemical Letters 2022年第6期33卷 2975-2981页

作者： Chuan Guo Jie Zhang Xiaojun Feng Zhenggui Du Yuanzhang Jiang Yidong Shi guanghui yang Lin Tan College of Biomass Science and Engineering Key Laboratory of Leather Chemistry and Engineering of Ministry of EducationSichuan UniversityChengdu 610065China Department of Breast Surgery West China HospitalSichuan UniversityChengdu 610041China School of Materials and Environmental Engineering Shenzhen PolytechnicShenzhen 518000China State Key Laboratory of Polymer Materials Engineering Sichuan UniversityChengdu 610065China

Medical cotton dressing is cheap and widely used in diversified fields,but in the application of promoting wound healing,the continuous research of multifunctional medical cotton dressing is still of great ***,we developed a fresh type of antibacterial cotton dressing through a succinct strategy based on chemically anchoring polyhexamethylene biguanide(PHMB).Intriguingly,after PHMB modification,the cotton dressing exhibited outstanding antibacterial performance which could maintain>99.99%antibacterial rate after several treatments,including washing 50 times,repeated use 10 times,UV irradiation for 7 days,cationic dyes dying,and conditioned under 90℃water bath for 2 *** addition,the water contact angle of cotton dressing increased dramatically from 0°to 111°,which could facilitate bacterial adhesion,thus further enhance the antibacterial efficiency,and easily remove the bacterial *** from that,the developed cotton dressing showed good cytocompatibility,promoted blood clotting and expression of platelets,and promoted the wound healing process in the infection intervened skin wound *** together,this antibacterial cotton dressing with desirable blood clotting,sustained protection against bacterial infection and bacterial removal features shows the potential to be a candidate for infected skin wound healing.

关键词： Cotton dressing Polyhexamethylene biguanidine Antibacterial performance Blood clotting Infected wound healing

Structural changes in the conversion of an Arabidopsis outward-rectifying K^(+) channel into an inward-rectifying channel

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Plant Communications 2024年第6期5卷 5-8页

作者： Xudong Gao Xia Xu Tengfei Sun Yuhan Lu Yutian Jia Jiaqi Zhou Peng Fu Yanming Zhang guanghui yang State Key Laboratory of Plant Environmental Resilience Frontiers Science Center for Molecular Design BreedingDepartment of Nutrition and HealthCollege of Biological SciencesChina Agricultural UniversityBeijing 100193China

Dear Editor,By using cryo-electron microscopy and electrophysiology,this study characterizes the structural and functional dynamics of the K+outward-rectifying channel SKOR in Arabidopsis and the structural changes associated with a double mutation that transforms SKOR into an inward-rectifying K+channel,*** findings have implications for understanding and manipulating crop K+nutrition.

关键词： channel Arabidopsis changes