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micro nanotribology and micro nanomechanics of magnetic storage devices

A review of the chemical and physical mechanisms of the storage stability of fast pyrolysis bio oils

A review of the chemical and physical mechanisms of the storage stability of fast pyrolysis bio oils

Báo cáo khoa học

... bio-oil • The extent of contamination of the bio-oil during storage by corrosion or leaching of the containers • Exposure to air during storage • The length of storage time • The storage temperature ... this reaction include carbonates and chlorides of sodium and potassium; calcium and sodium sulfates; and calcium and sodium acetates (Adams and Adkins 1925; Adkins and Nissen 1922) Catalysts for ... viscosity and difficulty of atomization In extreme cases of polymerization during storage, the fuel becomes saturated with the polymers and sludge forms on the bottom of the storage tank (Mushrush and...
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Structure, magnetic and transport properties of magnetic oxide materials and exploration of magnetic oxides semiconductor (zno) heterostructures

Structure, magnetic and transport properties of magnetic oxide materials and exploration of magnetic oxides semiconductor (zno) heterostructures

Thạc sĩ - Cao học

... role in determining the microstructure, magnetic and transport properties of the magnetic oxide thin films (2) A whole picture of the structure and magnetic properties of half metallic magnetite ... 300K and 5K 116 XI LIST OF FIGURES Figure 1 The density of state of non -magnetic, ferromagnetic, and half metallic meterials Figure Schematic diagram of Spin filter tunneling Below the TC of ... of the CoFe2O4 / ZnO /SiO2, and the enlarged (333) diffraction of the CoFe2O4 films with different thicknesses 143 Figure In plane and out of plane hysteresis loops of the CoFe2O4 (40nm)...
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Calculations of microwave permeability, permittivity and absorption properties of magnetic particle composites

Calculations of microwave permeability, permittivity and absorption properties of magnetic particle composites

Cao đẳng - Đại học

... in the design of magnetic absorber through the calculations of magnetic permeability and electric permittivity The emphasis of this thesis is to calculate and design the intrinsic and extrinsic ... Permeability of Fe phase µ2 Permeability of Fe3O4 phase ε1 Permittivity of Fe phase ε2 Permittivity of Fe3O4 phase v1 Volume fraction of Fe phase v2 Volume fraction of of Fe3O4 phase d Diameter of the ... frequency bands Letter Frequency range Letter Frequency range Designation L band to 2GHz Designation Q band 30 to 50GHz S band to 4GHz U band 40 to 60GHz C band to 8GHz V band 50 to 75GHz X band to...
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báo cáo hóa học:

báo cáo hóa học:" Gene and microRNA analysis of neutrophils from patients with polycythemia vera and essential thrombocytosis: down-regulation of micro RNA-1 and -133a" pot

Hóa học - Dầu khí

... of JAK2 V617F and the development of MPD [1,9] Further characterization of the molecular changes in MPD neutrophils could lead to a better understanding of the development of these diseases and ... proteins including copies of RPL10, copies of RPL3, and RPS9, RPS10P3, and RPL12P6; proteosome proteins including copies of PSMD2 and PSMC; and cytochrome c oxidases COX5B and COX7A2 To further explore ... -504 and -565 Micro RNA-216 is expressed by the pancreas A comparison of normal pancreas with 33 other tissues found that the expression of miR-216 and miR-217 and the lack of expression of miR-133a...
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Báo cáo khoa học:

Báo cáo khoa học: "An efficient micro-method of DNA isolation from mature leaves of four hardwood tree species Acer, Fraxinus, Prunus and Quercus" pdf

Báo cáo khoa học

... leaves of oak [5], dry leaves and buds of several Fraxinus species (Dr N Frascaria, ENGREF, Paris, France; pers comm.), seeds of Acacia mangium and Acacia crassicarpa, young and expanded leaves and ... method of Graham et al [3] yielded good quality DNA for all kind of plant material but in very poor amounts Microsatellite polymorphisms of 17 elite clones of oak obtained by amplification of the microsatellite ... pairs of microsatellites PCR products running a pBR 322 plasmid digested by Hae III (Biofinex) and a pUC plasmid digested by MspI (Biofinex) as base pair length ladders Lengths were RESULTS AND...
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Báo cáo y học:

Báo cáo y học: "Extra-cellular release and blood diffusion of BART viral micro-RNAs produced by EBV-infected nasopharyngeal carcinoma cells" pps

Báo cáo khoa học

... contributions CG and IB made RNA and c-DNA preparations and PCR analyses CG was involved in the design of the study and preparation of the manuscript AG and ASJ participated in exosome purification and study ... endogenous reference Our panel of BART miRNAs included members of cluster (miR-BART 1-5p and 5) and cluster (miR-BART 7-3p, 12 and 13) On the basis of previous publications, these microRNAs were expected ... Page of 12 Figure Detection of the BART miRNAs in total RNAs extracted from NPC xenografts and EBV-infected B-cells Presence of BART miRNAs - miR-BART1-5p and (cluster 1) and miR-BART 7-3p, 12 and...
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Instrumental and Chemometric Analysis of Automotive Clear Coat Paints by Micro Laser Raman and UV Microspectrophotometry

Instrumental and Chemometric Analysis of Automotive Clear Coat Paints by Micro Laser Raman and UV Microspectrophotometry

Y khoa - Dược

... Research Integrity and Copyright Disclaimer Title of Thesis/Dissertation: Instrumental and Chemometric Analysis of Automotive Clear Coat Paints by Micro Laser Raman and UV Microspectrophotometry ... INSTRUMENTAL AND CHEMOMETRIC ANALYSIS OF AUTOMOTIVE CLEAR COAT PAINTS BY MICRO LASER RAMAN AND UV MICROSPECTROPHOTOMETRY A Thesis Submitted to the Faculty of Purdue University by Alexandra Nicole ... (SWGMAT) and ASTM Standard E1610 (Standard Guide for Forensic Paint Analysis and Comparison).5 The forensic analysis of automotive paints generally starts with a microscopic examination of the...
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dy and performance enhancement of fast tool servo diamond turning of micro structured surfaces

dy and performance enhancement of fast tool servo diamond turning of micro structured surfaces

Thạc sĩ - Cao học

... University of Singapore NUS List of Figures xv Figure 4.26 (a) Simulated surface with SWX; (b) Command and response of the first rotation of the tool path; (c) 3D visualization of portion of the ... the order of micrometers or sub-micrometers However, it is not easy and cost effective for these methods to fabricate complex profiles with wavelength in the range of tens to hundreds of micrometers ... process of X-ray lithography, electroforming and casting It enables the manufacturing of micro- components made of non-silicon materials like plastics, metals and ceramics with almost any kind of lateral...
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Application of micro cantilevers in characterization of crystallization induced stresses and mechanical properties of amorphous thin films

Application of micro cantilevers in characterization of crystallization induced stresses and mechanical properties of amorphous thin films

Cao đẳng - Đại học

... Chapter and present the results and analysis, respectively, of the density changes in Cu-Zr and Zr-Cu-Al systems The measurement of Young’s moduli and coefficients of thermal expansion of amorphous ... 139 6.1 (a) A sketch of the top view of a sample (b) An optical micrograph of a “pit” with a set of as-fabricated freestanding SiN micro- cantilevers suspended from the sides of a 250μm by 250μm ... to work with Prof Li Yi and Prof Carl V Thompson during the past years of my PhD endeavor Both professors are distinguished scientists in their respective fields of expertise and I have learnt...
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Analysis and computational modelling of drop formation for piezo actuated DOD micro dispenser

Analysis and computational modelling of drop formation for piezo actuated DOD micro dispenser

Tổng hợp

... Comparison of pictures and simulation results of drop generation of PEDOT 81 Figure 6.5 Comparison of pictures and simulation results of drop generation of water Figure 6.6 Ejection of the water ... compute over the entire range of Re of interest and predict occurrence of microthreads during formation of drops of high-viscosity liquids FEM have also been used in analysis of liquid drops among others ... distribution and volume of breakoff drops This technique is capable of predicting the breaking of drops and their coalescence However, they not show the kind of accuracy that is required for the microscopic...
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Numerical simulation and performance test of metal hydride hydrogen storage system

Numerical simulation and performance test of metal hydride hydrogen storage system

Vật lý

... filtration and D=0.00237 is for LaNi5 The term ε and d are the porosity of metal hydride and average diameter of metal hydride particle, respectively In & the meanwhile, Jf is hydrogen flux and determined ... International Journal of Energy and Environment (IJEE), Volume 2, Issue 3, 2011, pp.401-414 where A and B are Van’t Hoff constants and depend on the hydride material From Eqs (17) and (18) the function ... where K and E are effective thermal conductivity in metal hydride and heat of formation of hydride, respectively The two equations (16) and (19) are the simplified mathematical model of metal...
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Energy and exergy analysis of particle dispersed latent heat storage system

Energy and exergy analysis of particle dispersed latent heat storage system

Vật lý

... making and energy storage Dr.Pohekar is a life member of Solar energy society of India and International society of multi-criteria decision making, and fellow of Institution of Engineers (India) and ... International Journal of Energy and Environment (IJEE), Volume 1, Issue 3, 2010, pp.445-458 The effect of Stefan number on energy storage and exergy storage has also been investigated and the results ... Institute of Technology and Science, Pilani, Rajasthan, India in 2004 He has published several refereed journal and conference papers in the areas of energy management and latent heat thermal storage...
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Tài liệu tiếng anh Điện tử công suất mạch MERS Loss and rating consideration of a wind energy conversion system with reactive compensation by magnetic energy recovery switch

Tài liệu tiếng anh Điện tử công suất mạch MERS Loss and rating consideration of a wind energy conversion system with reactive compensation by magnetic energy recovery switch

Tự động hóa

... system loss and rating investigations Magnetic Energy Recovery Switch (MERS) Configuration and operation The configuration of the magnetic energy recovery switch (MERS) consists of forced commutated ... loss and rating considerations of this solution further First, the basics of the MERS configuration are introduced This is followed by description of experiments on a 50 kW PM generator and theoretical ... voltage and current waveforms with two different modes of operation needed, representing a major cost and loss component Another issue is the size of the generator which grows large with low speed and...
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preparation and properties of magnetic iron oxide nanotubes

preparation and properties of magnetic iron oxide nanotubes

Vật lý

... López-Urías, and Mu˜ oz-Sandoval (2005) n simulated the micromagnetic property of iron nanorings, and they found large coercive fields for din /dout > 0.5 (din and dout are the inner and outer diameters of ... oz-Sandoval, E (2005) Micron magnetic simulation of iron nanorings Journal of Magnetism and Magnetic Materials, 294(2), e1–e5 Varadwaj, K S K., Panigrahi, M K., & Ghose, J (2004) Effect of capping ... rings, respectively) and t = 160–200 nm (t is the thickness of the rings or length of the tubes) nanorings due to the absence of the vortex states and the presence of out-plane and in-plane spin...
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Báo cáo

Báo cáo "Effects of Zn content on the magnetic and magnetocaloric properties of Ni-Zn ferrites " pdf

Báo cáo khoa học

... interaction and we suppose in our studied samples there is canting structure as illustrated in Fig 2, where ϕ is the angle between direction of magnetic moment of A ions and magnetic moment of B1 and ... the spin order and magnetic behavior of samples, the field-cooled (FC) and zero field-cooled (ZFC) magnetization measurements were performed in magnetic field of 20 Oe (Fig ) The FC and ZFC curves ... and MSe from Tab 2, we could determine the canting angle between magnetic moments of B1 and B2 ions in octahedral sublattice We see that canting angle increases with increasing amount of nonmagnetic...
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EFFECT OF STORAGE TEMPERATURES ON THE PHYSIOLOGICAL AND BIOCHEMICAL PROPERTIES OF HYLOCEREUS POLYRHIZUS

EFFECT OF STORAGE TEMPERATURES ON THE PHYSIOLOGICAL AND BIOCHEMICAL PROPERTIES OF HYLOCEREUS POLYRHIZUS

Báo cáo khoa học

... Understanding the Composition and Complexity of Rural Households Agriculture and Human Values 22:87-103 Druiynska, B, A & Wotosiak, R 2007 The Influence of Time and Type of Solvent ,on Efficiency of ... expressed in Fe2+ and ABTS assay of Limnophi/a aromatica extracts prepared by different extraction temperature and time! 75 Table 4.8 ECso of DPPH and FRAP expressed in Fe2+ and ABTS assay of extracts ... Trend of Consumer Perception Towards Herbs 2.1.4 Current Trend of Consumption of Herbs 2.2 Herb of Limnophila aromatica 2.2.1The Morphology of Limnophila aromatica 2.2.2 The Uses and Benefits of...
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Báo cáo hóa học:

Báo cáo hóa học: " Synthesis, magnetic and optical properties of core/shell Co1-xZnxFe2O4/SiO2 nanoparticles" pot

Hóa học - Dầu khí

... investigate the effect of Zn2+ partially substituting for Co2+ in CoFe2O4 nanoparticles (Co1-xZnxFe2O4; x = 0, 0.5, and 1) and shelling with silica on the magnetic and optical properties of the ferrite ... uncoated (a) and coated with silica shell (b) the width of hysteresis loop and the magnetic moment decrease due to the substitution of the magnetic Co element by Zn element which is a non -magnetic ... transformation of the magnetization state from ferromagnetic state to paramagnetic state with the increase of the firing temperature from 400°C to 800°C The Ms and Hc values of the prepared coated and uncoated...
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Báo cáo hóa học:

Báo cáo hóa học: " Cytotoxic effects and the mechanism of three types of magnetic nanoparticles on human hepatoma BEL-7402 cells" ppt

Hóa học - Dầu khí

... determination and transferrin receptor expression will be the next step for further reveal of the cytotoxicities of Fe O4 , OA- Fe3 O4 , and C-Fe Materials and methods Reagents RPMI-1640 and fetal ... Engineering, Department of Materials Science and Engineering, College of Materials, Xiamen University, Technology Research Center of Biomedical Engineering of Xiamen City, The Key Laboratory of Biomedical ... which could affect the amount of MNPs entering the cells and further affect cytotoxicity In our results, the surface charge of Fe O4 , OA-Fe3 O , and C-Fe were 14.4, 4.5, and 23.7 mV, respectively,...
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Báo cáo hóa học:

Báo cáo hóa học: " Surface Modification and Planar Defects of Calcium Carbonates by Magnetic Water Treatment" pptx

Hóa học - Dầu khí

... assemblages and microstructures of the scale deposit on low-carbon steel sheet and pipe are basically the same when subjected to MWT under an applied magnetic field of 100–400 G and duration of 0.1–0.2 ... structures and various morphologies when tailored by temperature and polymer concentration [48] The effect of magnetic field strength on the shape and defect microstructure development of magnetic ... adsorption of mixed cations and anions on the faceted nuclei rotating under an applied magnetic field and fluid flow; (2) (hkl)-specific coalescence and ledge growth of the crystallites; (3) anchorage and...
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Báo cáo hóa học:

Báo cáo hóa học: " Synthesis and Characterization of Magnetic Metal-encapsulated Multi-walled Carbon Nanobeads" doc

Hóa học - Dầu khí

... graphitic layers of nanotubes and a slight weight gain at 850 °C of Ni-encapsulated MWNB may be due to the formation of higher oxides of metal after complete burning of graphitic layers of MWNT The ... the oxidant and lose weight at a lower temperature compared with more crystalline CNTs TGA of as-grown and purified Ni-encapsulated MWNB and MWNT tell about the purity and the quantity of Ni encapsulated ... the uniform and complete encapsulation of Ni in the form of nanobeads and nanowires The temperature-programmed oxidation technique allows one to find the relative amounts of defective and crystalline...
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