检索结果-南通市图书馆

Inhibition of the Crystal Growth and Aggregation of Calcium Oxalate by Algae Sulfated Polysaccharide In-vitro

在线全文

学校读者我要写书评

暂无评论

Chinese Chemical Letters 2006年第1期17卷 97-100页

作者： Xiu Mei WU Jian Ming OUYANG sui ping deng Ying Zhou CEN Institute of Biomineralization and Lithiasis Research Department of Chemistry Jinan University Guangzhou 510632

The influence of sulfated polysaccharide （SPS） isolated from marine algae Sargassum fusiforme on the morphology and phase compositions of urinary crystal calcium oxalate was investigated in vitro by means of scanning electron microscopy and X-ray diffraction. SPS maybe is a potential inhibitor to CaOxa urinary stones by inhibiting the growth of calcium oxalate monohydrate （COM）, preventing the aggregation of COM, and inducing the formation of calcium oxalate dihydrate （COD） crystals.

关键词： Calcium oxalate sulfated polysaccharide urinary stone.

The Effect of Potassium Citrate on Simultaneous Growth of Calcium Oxalate Mono-, Di-, and Trihydrate in Synthetic Urine

在线全文

学校读者我要写书评

暂无评论

Chinese Chemical Letters 2006年第5期17卷 687-690页

作者： Yi Ming LIU Feng Xin WANG sui ping deng Jian Ming OUYANG Institute of Biomineralization and Lithiasis Research Jinan University Guangzhou 510632

The inducing effect of potassium citrate （K3cit） on simultaneous growth of calcium oxalate mono-（COM）, di-（COD）, and trihydrate （COT） crystals in synthetic urine was observed with double diffusion gelatinous technique. K3cit can induce the formation of COD and COT, inhibit the aggregation and decrease the surface area of COM crystals. It supported the clinical use of K3cit and may provide important clues to this disease in cure and in search for new drugs.

关键词： Calcium oxalate potassium citrate biomineralization urinary stone gel.

Medical titanium surface-modified coatings with antibacterial and anti-adhesive properties for the prevention of implant-associated infections

在线全文

学校读者我要写书评

暂无评论

Journal of Materials Science & Technology 2024年第12期179卷 208-223页

作者： Dongliang Huo Fengqian Wang Fengjuan Yang Tongyao Lin Qing Zhong sui-ping deng Jingxian Zhang Shaozao Tan Langhuan Huang Guangdong Engineering&Technology Research Centre of Graphene-like Materials and Products Department of ChemistryCollege of Chemistry and Materials ScienceJinan UniversityGuangzhou 510632China

Implant-associated infections(IAIs)caused by drug-resistant bacteria remain a critical factor in the fail-ure of implant ***,it is urgent to develop an effective anti-infection coating for im-plant surface modification to prevent ***,an antibacterial and anti-adhesive coating(CMP-Ti)constructed on the surface of titanium implants is reported,formed by the nanomaterial CeO_(2)@Mn_(3)O_(4) NRs(CM NRs)with antibacterial activity and the superhydrophilic polymer polyethylene glycol(PEG).The nanocatalyst CM NRs on the surface of CMP-Ti induce ferroptosis-like death of bacteria by catalyzing the production of hydroxyl radical(·OH)and singlet oxygen(^(1)O_(2))and the consumption of glutathione(GSH).The superhydrophilic coating of CMP-Ti can effectively prevent adherence of drug-resistant bac-teria and avoid biofilm *** combining the"active offense"antibacterial mechanism with the"passive defense"anti-adhesion mechanism,CMP-Ti can kill bacteria and inhibit biofilm *** results of in vivo studies showed that CMP-Ti effectively prevented implant-associated infections caused by Methicillin-resistant Staphylococcus aureus(MRSA),thus promoting tissue repair and ***,this multifunctional coating combining"active offense"and"passive defense"provides a promising way to prevent IAIs caused by drug-resistant bacteria and to promote tissue repair in the future.

关键词： Medical titanium Antibacterial coatings Drug-resistant bacteria Biofilm inhibition Ferroptosis-like death

Distinct MLT asymmetry of auroral kilometric radiation observed by the FAST satellite

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Earth and Planetary Physics 2025年第1期9卷 188-193页

作者： JiaWen Tang Sai Zhang FuLiang Xiao HongMing Yang Si Liu YiHua He Chang Yang YuYue Jin ZhouKun deng ping Li Archie James Johnston School of Physics and Electronic Sciences Changsha University of Science and TechnologyChangsha 410114China Hunan Province Higher Education Key Laboratory of Modeling and Monitoring on the Near-Earth Electromagnetic Environments Changsha University of Science and TechnologyChangsha 410114China School of Electrical and Information Engineering Changsha University of Science and TechnologyChangsha 410114China

Auroral Kilometric Radiation (AKR) is a common radio emission,which can contribute to the magnetosphere-ionosphereatmosphere co u *** emissions have been observed in all magnetic planet magnetospheres of the solar *** this study,using observations from the FAST satellite from 30 August 1996 to 9 September 2001,the distribution of AKR in altitude=500-4500 km and invariant latitude (|ILAT|)=60°-80°has been analyzed.63045 AKR samples have been identified with~48%(52%) samples on the dayside (nightside).Of considerable interest,there is a distinct MLT asymmetry with the high occurrence rate in MLT=05-08 and 18-22(02-05 and 12-17) in the northern (southern) *** distinct MLT asymmetry is associated with the direction of Bxof the interplaneta ry magnetic *** addition,the occurrence rate on the nightside clearly increases as the AE^(*) index *** study further enriches the information and understanding of AKR in the magnetosphere as well as other similar radio emissions.

关键词： asymmetry auroral kilometric radiation interplanetary magnetic field

在线全文

学校读者我要写书评

暂无评论

高品质学校的内涵结构、建设困境与突破路径

教学与管理 2025年第1期 19-23页

作者：邓纯臻隆平陈书忠重庆师范大学生命科学学院重庆401331 四川省攀枝花市第七高级中学校四川攀枝花617005 重庆市育才中学校重庆400050

高品质学校的创建既是区域教育高质量发展的基本组成,也是助推教育强国、人才强国建设的实践基础。综合来看,学校内部维度的高品质是一种过程取向以及主观层面的高品质,外部维度的高品质是一种结果取向以及客观层面的高品质,高品质学校... 详细信息

高品质学校的创建既是区域教育高质量发展的基本组成,也是助推教育强国、人才强国建设的实践基础。综合来看,学校内部维度的高品质是一种过程取向以及主观层面的高品质,外部维度的高品质是一种结果取向以及客观层面的高品质,高品质学校包括学生、教师、管理者以及课程、课堂、课题六个核心的动力要素。当前,高品质学校的建设依然在前沿理论、本地生源、教育资源以及师资队伍等方面存在一些阻碍,对此,建议从学校文化、优质资源、课程体系、师资队伍、管评系统等五个维度探寻突破路径,以期找到高品质学校的创新之路、高品质之路。

关键词：教育高质量发展高品质学校中小学管理学校治理

Structural engineering of high-entropy alloys for advanced electrocatalytic reactions

在线全文

学校读者我要写书评

暂无评论

Tungsten 2025年第1期 1-31页

作者： Qiao Xie Ying-Jie Yu Hai-Jun Zhang Ya-ping deng Wen Lei The State Key Laboratory of Refractories and Metallurgy Wuhan University of Science and Technology Department of Chemical Engineering Waterloo Institute for Sustainable Energy Waterloo Institute for Nanotechnology University of Waterloo

High-entropy alloys(HEAs) have emerged as promising candidates to replace traditional precious metal catalysts,owing to their unique chemical and physical *** review commences by revisiting the fundamental concepts of HEAs,including their synthesis methods and structural control strategies in *** underscores the critical role of meticulously manipulating both macroscopic and microscopic structures of the HEAs to optimize their catalytic performance.A deep understanding of the structure-activity relationship in HEAs across various configurations is pivotal in developing more effective *** review methodically encapsulates the research progress of structural control strategies for HEAs in achieving efficient energy conversion,with the aim of gaining a better understanding of the relationship between structure and *** review concludes by summarizing the current achievements and challenges,and suggestions for potential future directions of HEAs in the fields of energy conversion and environmental purification.

关键词：

MULTIGRID METHODS FOR THE GENERALIZED STOKES EQUATIONS BASED ON MIXED FINITE ELEMENT METHODS

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Journal of Computational Mathematics 2002年第2期20卷 129-152页

作者： Qing-ping deng Xiao-ping Feng Department of Mathematics The University of Tennessee 美国 Knoxville TN 37996

Examines multigrid methods for the generalized stationary Stokes equations which are discretized by various mixed finite element methods. Information on a multigrid algorithm; preliminaries of convergence; Application... 详细信息

关键词： Generalized Stokes equations Mixed methods Multigrid methods.

Charge-state populations for the neon-XFEL system

在线全文

学校读者我要写书评

暂无评论

Chinese Physics B 2019年第6期28卷 155-163页

作者： ping deng Gang Jiang Institute of Atomic and Molecular Physics Sichuan UniversityChengdu 610065China Key Laboratory of High Energy Density Physics and Technology Ministry of EducationChengdu 610065China

The interaction between neon and x-ray free-electron lasers with different laser parameters is systematically studied by solving a set of coupled rate equations. As an example, the evolution of 1s^12 s^22 p^6 configuration is given under different incident photon numbers, pulse widths, and photon energies. We have also determined all of the charge-state populations as a function of three laser pulse parameters by averaging over time. The result shows that the variations of these charge-state populations demonstrate a pattern when the pulse width is shorter than 10 fs: some of the charge-states decrease rapidly,while the others rise but remain relatively constant for pulse width larger than 10 fs. The variation of the average charge with three parameters has also obtained. The average charge decreases for a pulse width shorter than 10 fs but remains basically unchanged for a pulse width longer than 10 fs.

关键词： x-ray free electron lasers neon charge-state population pulse width

Effect of Mg Doping on the Photoluminescence of GaN:Mg Films by Radio-Frequency Plasma-Assisted Molecular Beam Epitaxy

在线全文

学校读者我要写书评

暂无评论

Chinese Physics Letters 2011年第6期28卷 308-311页

作者： sui Yan-ping YU Guang-Hui Department of Electronic Science and Technology College of Information Technical ScienceNankai UniversityTianjin 300071 State Key Laboratory of Functional Materials for Informatics Shanghai Institute of Microsystem and Information TechnologyChinese Academy of SciencesShanghai 200050

We investigate undoped GaN and Mg-doped GaN grown by rf plasma-assisted molecular beam epitaxy(MBE)with different Mg concentrations by photoluminescence(PL)at low temperature,Hall-effect and XRD *** the PL spectra of lightly Mg-doped GaN films,a low intensity near band edge(NBE)emission and strong donor-acceptor pair(DAP)emission with its phonon replicas are *** the Mg concentration is increased,the DAP and NBE bands become weaker and a red shift of these bands is observed in the PL *** luminescence(YL)is observed in heavily Mg-doped *** x-ray diffraction is employed to study the structure of the *** measurement shows that there is a maximum value(3.9×10^(18) cm^(−3))of hole concentration with increasing Mg source temperature for compensation *** spectra of undoped GaN are also studied under N-rich and Ga-rich growth *** luminescences of undoped Ga-rich GaN and heavily Mg-doped GaN are compared,indicating the different origins of the YL bands.

关键词： GaN Epitaxy bands