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  • 1
    Online Resource
    Online Resource
    Singapore :Springer Nature Singapore :
    Keywords: Biomaterials. ; Nanochemistry. ; Biochemistry. ; Diagnosis. ; Nanomedicine. ; Therapeutics. ; Biomaterials. ; Nanochemistry. ; Biochemistry. ; Diagnosis. ; Nanomedicine and Nanotoxicology. ; Therapeutics.
    Description / Table of Contents: Introduction of nanozymes -- Nanozymes for in vitro diagnostics -- Nanozymes for live assays -- Nanozymes for emerging bioanalysis -- Nanozymes for antioxidant therapy -- Nanozymes for prooxidation therapy -- Nanozymes for emerging therapy -- Perspective.
    Abstract: This book aims to summarize the latest research progress of biomedical nanozymes in diagnostic and therapeutic related fields. In terms of diagnostics, it will cover in vitro diagnostics, live analysis, and some emerging bioanalysis. In terms of therapeutics, it will introduce antioxidant therapy, peroxidation therapy and emerging therapy respectively. Furthermore, the research results previously scattered in many journals and conferences worldwide are methodically edited and presented in a unified form. Based on the new ideas and developments presented in this book, it will be of interest to readers from different areas, such as chemistry, materials, nanoscience and nanotechnology, biomedical and clinical studies, etc.
    Type of Medium: Online Resource
    Pages: XV, 235 p. 1 illus. , online resource.
    Edition: 1st ed. 2023.
    ISBN: 9789819933389
    DDC: 620.19
    Language: English
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  • 2
    Publication Date: 2024-04-20
    Description: It is of practical significance for optimizing and adjusting the farmland spatial utilization and maintaining regional food security to identify the spatial distribution of farmland resources. Farmland space research depends on the land use data that accurately reflects the spatial information. At present, the resolution of existing land use data is low, ranging from 10 m to 8 km. Among them, the 30 m-resolution land use data compiled using the Landsat images, as released by the Resource and Environmental Science and Data Center of the Chinese Academy of Sciences are the highest resolution and long-term series data product available for China. However, by high-resolution image interpretation and field verification, we found that the dataset involved large deviations and uncertainties, mainly due to the reasons that the farmland in Tibetan Plateau (TP) was fragmented with small parcels, and thus cannot be accurately extracted from the Landsat images. To this end, the 1 m-resolution farmland dataset was visually interpreted from Google Earth high-resolution images in this study, which contained farmland of the TP in 2018, and that of the Three River Region (TRR) and Huangshui River Basin (HRB) in 2000 and 2018. The objects in the Google Earth high-resolution images were clearly distinguishable, and the farming characteristics of land were obvious, ensuring the accuracy of the interpretation results. In addition, this study randomly checked 230 plots collected by field surveys in 2018–2021, finding that 95.22% of the farmland parcels has been correctly identified, which further improved the reliability of the interpreted farmland dataset. This farmland dataset can provide references for farmland and agriculture research in the TP.
    Keywords: Farmland; high-resolution; The Tibetan Plateau; visual interpretation
    Type: Dataset
    Format: application/zip, 132.1 MBytes
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  • 3
    Electronic Resource
    Electronic Resource
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 280-283 (Feb. 2007), p. 1045-1048 
    ISSN: 1013-9826
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: In this paper, the α-Al2O3 microfiltration membrane modified by nano-ZnO coating was obtained using zinc nitrate and urea as raw materials via homogeneous precipitation method. The effects of reaction temperature and coating times on the modification of the membrane were emphatically studied. The test results show that the flux of modified membrane is raised by 43% when the nano-ZnO particles (5 ~ 10 nm) are smoothly and densely coated on the surface of the membrane. The mechanism of the modification was studied by means of TEM, FTIR, XPS, Zeta electric potential analyzer, etc
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 353-358 (Sept. 2007), p. 722-725 
    ISSN: 1013-9826
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: The AZ31 Mg alloy was upseted from 250°C to 500°C. In optical microscopy, as thetemperature increases, the volume fraction of deformation twin will reduce to a minium and vanish.Simultaneously, some small dynamically recrystallized grains were observed at the boundaries oforigin grains and twins. When temperatures rise from 350°C to 500°C , the volume fraction and sizeof DRX grains increases .By the compression test of the upsetting proof samples, the compressivestrength reach a maxium, and reduce during further rising temperatures
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Applied mathematics and mechanics 15 (1994), S. 1125-1130 
    ISSN: 1573-2754
    Keywords: Ehresmann space ; basic equation ; Cauchy problem
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Mathematics , Physics
    Notes: Abstract In this paper, the necessary conditions of the existence of C2 solutions in some initial problems of Navier-Stokes equations are given, and examples of instability of initial value (at t=0) problems are also given. The initial value problem of Navier-Stokes equation is one of the most fundamental problem for this equation various authors studies this problem and contributed a number of results. J. Lerav, a French professor, proved the existence of Navier-Stokes equation under certain defined initial and boundary value conditions. In this paper, with certain rigorously defined key concepts, based upon the basic theory of J. Hadamard partial differential equations1, gives a fundamental theory of instability of Navier-Stokes equations. Finally, many examples are given, proofs referring to Ref. [4].
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Applied mathematics and mechanics 15 (1994), S. 865-866 
    ISSN: 1573-2754
    Keywords: Navier-Stokes equation ; steady motion ; turbulent flow
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Mathematics , Physics
    Notes: Abstract In this paper we give an example of non-uniqueness of local solution for some kinds of boundary value problem of Navier-Stokes equation.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Applied mathematics and mechanics 21 (2000), S. 1432-1439 
    ISSN: 1573-2754
    Keywords: Navier-Stokes equation ; formal solution ; stratification ; equation secondaire ; O175.29
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Mathematics , Physics
    Notes: Abstract A necessary and sufficient conditions of the existence of formal solution to the initial value problem of Navier-Stokes equation on R3×R are presented. A computation case is also given
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Applied mathematics and mechanics 21 (2000), S. 1440-1449 
    ISSN: 1573-2754
    Keywords: Navier-Stokes equation ; unstable equation ; strate transversale ; O175.29
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Mathematics , Physics
    Notes: Abstract Applying the theory of stratification, the solution space structure about a class of deformed Navier-Stokes equation isdetermined. It is proved that such kind of equation has no Ck (k≥2) stable solution by the fact that the strate transversale is a null set.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Applied mathematics and mechanics 15 (1994), S. 929-933 
    ISSN: 1573-2754
    Keywords: solution space ; Janet number ; Navier-Stokes equation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Mathematics , Physics
    Notes: Abstract In this paper, we make some comparisons between the solutions for Navier-Stokes equation and those for heat conduction equation. In his study of Navier-Stokes equation, professor J. Leray, a French mathematician and authority on partial differential equation, starting from heat conduction equation, obtained some results of properly posed of certain initial boundary value problems of Navier-Stokes equation. Professor R. Temam of University de Paris XI and other experts in this field also brought up the possibility of comparing these two classes of equations. This paper attempts to describe and prove the fundamental difference between these two.
    Type of Medium: Electronic Resource
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  • 10
    Publication Date: 2014-11-03
    Print ISSN: 0027-8424
    Electronic ISSN: 1091-6490
    Topics: Biology , Medicine , Natural Sciences in General
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