biosynthesis structure and physical properties of some bacterial polysaccharides
Báo cáo khoa học: Crystal structure and enzymatic properties of a bacterial family 19 chitinase reveal differences from plant enzymes pdf
... present analysis of enzymatic properties of ChiG, or by our analysis of the ChiG and ChiC structures Despite the deletion of the B-loop, the two putative catalytic residues Glu68 and Glu77 are structurally ... amounts of (GlcNAc)3 and (GlcNAc)2; the 80 : 20 anomeric ratio of the products indicates that cleavage after sugar or sugar occurs approximately equally often Structure The overall structure of ChiG ... influenzae, and Pseudomonas aeruginosa Although many plant family 19 chitinases are known, crystal structures are available for only two of these [9,15–17] The first structure of a bacterial family...
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PREDICTION OF CHEMICAL REACTIVITY PARAMETERS AND PHYSICAL PROPERTIES OF ORGANIC COMPOUNDS FROM MOLECULAR STRUCTURE USING SPARC pptx
... chemical and physical properties to Program Offices (e.g., Office of Water, Office of Solid Waste and Emergency Response, Office of Prevention, Pesticides and Toxic Substances) and Regional Offices ... databases The strength of the electrostatic interaction between S and C depends on the magnitude and relative orientation of the local fields of S and C and the dielectric properties and distances through ... Effect 3.4.3.3 Temperature Effect 3.4.4 Results and Discussions 3.4.5 Conclusion PHYSICAL PROPERTIES 4.1 Estimation of Physical Properties 4.2 Physical Properties Computational Approach 4.3 SPARC...
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Tài liệu Báo cáo " The effect of cobalt substitution on structure and magnetic properties of nickel ferrite " pptx
... (511) and (440) These planes are indications of the presence of a spinel cubic structure The diffraction lines corresponding to a cubic, spinel-type and crystalline phase provides clear evidence of ... high coercivity of materials, the second term can take part of several tens percent of HC and the last one whereas can only reach several hundreds of gauss Thus, the increasing of Co-concentration ... Co-concentration led to the increasing of anisotropy property of ferrites Ni1-xCoxFe2O4, hence it was the increasing of HC The increasing of HC proved that the soft magnetic property of ferrite NiFe2O4 changed...
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synthesis, structure and magnetic properties of iron-doped tungsten oxide nanorods
... consisting of WO3 and W There are two characteristic binding energies (707.4 and 711.4 eV) for the photoelectron line of Fe 2p3/2, as illustrated in Fig The binding energies of 707.4 and 711.4 ... (0 1) of WO3, according to JCPDS card No 20-1324 Figs 2c and d also show that the thin layer covering the nanorods is in amorphous The thickness of the amorphous coatings and the size of the ... results indicate that most of the WO2 and part of the W could be oxidized to WO3 after air annealing at 573 K Iron and its oxide could be indexed in the XRD patterns of both samples However, the...
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Báo cáo khoa học: Quaternary structure and functional properties of Penaeus monodon hemocyanin docx
... allosteric properties of the protein and to trace the evolutionary pathway of the allosteric behaviour Results Characterization of the oligomeric state of P monodon Hc In gel-filtration experiments of ... strict conservation of the chemical features of amino acids listed in Table 1, C or I, and, to some extent, also I* and C* The lower stability of Hc from nonpeneid Crustacea yields a structure where ... hemocyanin structure and function equilibrium constant, lo, describes the ratio of conformations r and t in the absence of ligand: lo ¼ ½t0 ½r0 Three-state MWC model An extension of the simple...
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Báo cáo khoa học: H NMR study of the molecular structure and magnetic properties of the active site for the cyanomet complex of O2-avid hemoglobin from the trematode Paramphistomum epiclitum pdf
... of the heme pocket of Pe Hb as found in the crystal structure of Pe metHbH2O [16] and as conrmed herein by solution 1H NMR of Pe metMbCN Proximal and distal residues are shown as rectangles and ... points) at 25 C, 30 C and 35 C in order to identify scalar and dipolar connectivities among heme and amino acid residues Spectral widths of 13 kHz and mixing times of 80 ms for NOESY and 50 ms for TOCSY ... the remainder of the target residues assigned by detection of NOESY residueheme and interresidue cross-peaks solely by the standard Mb fold, and the observation of relaxation effects and/ or sufcient...
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Báo cáo toán học: " Structure and electrical properties of sputtered TiO2/ZrO2 bilayer composite dielectrics upon annealing in nitrogen" pdf
... micrograph of the as-deposited sample It can be clearly seen that the structure includes the two layer stacks of TiO2 and ZrO2 films and that the interface layer is observed between the ZrO2 film and ... Foundation of China (No 51072049), STD and ED of Hubei Province (Grant Nos 2009CDA035, 2008BAB010, 2010BFA016, and Z20091001) Author details State Key Laboratory of Electrical Insulation and Power ... electrical properties of TiO2/ZrO2 bilayer composite dielectrics and drafted the manuscript HW conceived the study and participated in its design and coordination CY participated in the revision of the...
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Báo cáo hóa học: " Structural and physical properties of antibacterial Ag-doped nano-hydroxyapatite synthesized at 100°C" pptx
... image and EDAX (Figure 4) spectrum of Ca10-xAgx(PO4)6(OH)2, with x = and 0.2, are shown The morphology of the nanoparticles of HAp and Ag: HAp was investigated by SEM SEM images provide the Page of ... results of XRD and TEM, the FTIR and FT-Raman spectra of the HAp show the absorption bands characteristic of hydroxyapatite XPS results provide the additional evidence for the successful doping of ... Miyaji F, Ando Y, Miyamoto H, Shimazaki T, Yonekura Y, Miyazaki M, Mawatari M, Hotokebuchi T: Development of novel thermal sprayed antibacterial coating and evaluation of release properties of silver...
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Báo cáo hóa học: " Aqueous Solution Preparation, Structure, and Magnetic Properties of Nano-Granular ZnxFe32xO4 Ferrite Films" potx
... thickness of about 300 nm (Fig 5d) The nano-granular microstructure of the deposited ferrite films may result from the random nucleation of the ferrite granules on the nano-granular surface of the ... lattice constant of the films increases from 0.8399 to 0.8464 nm; and the microstructure of the films change from the non-uniform nano-granules to the fine and uniform nano-granules of 50–60 nm in ... ions migrate to the surface of the Ag layer mediated by the electrostatic force, and the dehydration reaction is accompanied by the reactions of Eqs and The reduction of NOÀ ions to NOÀ ions is...
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báo cáo hóa học:" Crystal structure and electrical properties of bismuth sodium titanate zirconate ceramics" pdf
... representation and manipulation of crystal structures and calculation of the resulting X-ray powder patterns J Appl Cryst 1996, 29:301-303 12 Jones GO, Thomas PA: Investigation of the structure and phase ... of materials Hence, this study showed that the observed dielectric and ferroelectric properties of BNTZ ceramics largely depended on compositional and crystal structure changes Optimization of ... Crystal structure and electrical properties of bismuth sodium titanate zirconate ceramics Nanoscale Research Letters 2012 7:57 Author details Department of Physics and Materials Science, Faculty of...
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Báo cáo hóa học: " Structure and Photoluminescent Properties of ZnO Encapsulated in Mesoporous Silica SBA-15 Fabricated by Two-Solvent Strategy" doc
... the channels of mesoporous silica SBA15 and MCM-41 and the pores of zeolites Two examples are conventional wetness impregnation [12–15] and the improved method with modification of the surface ... of SBA-15 is as follows [21] A total of g of extracted mesoporous silica SBA-15 was suspended in 20 mL of n-hexane as the first hydrophobic solvent; and the mixture was stirred for h A total of ... prepared a nanocomposite of ZnO clusters supported in mesoporous silica (or ZnO/SBA15) via the two-solvent synthetic route The structure and photoluminescent properties of the ZnO/SBA-15 nanocomposite...
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Báo cáo hóa học: "GEOMETRIC AND APPROXIMATION PROPERTIES OF SOME SINGULAR INTEGRALS IN THE UNIT DISK" doc
... Geometric and approximation properties ∗ Here Pξ ( f ) is said to be of Picard type, Qξ ( f ), Qξ ( f ), and Rξ ( f ) are said to be of Poisson∗ Cauchy type, and Wξ ( f ) and Wξ ( f ) are said to be of ... [3–5], classes of convolution complex polynomials were introduced and their approximation properties regarding rates, global smoothness preservation properties, and some geometric properties like ... (4.7) The reasonings in the case of Wξ ( f )(z) are similar The proof of continuity on D of Wξ ( f ) and Wξ∗ ( f ) is similar to that for Pξ ( f ) in the proof of Theorem 2.1(i) ∗ It remains to...
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Báo cáo hóa học: "Synthesis, structure and magnetic properties of b-MnO2 nanorods" pptx
... critical slowing-down of the spin fluctuations Discussion Fig (a) Magnetization as a function of the magnetic field of the b-MnO2 nanorods at 5, 55 and 110 K (b) Expanded portions of the M(H) curves, ... 10, 100 and 1000 Hz (Fig 5f) We observe a frequency-independent peak at 40.5 K, 123 The rich structure of the M(T) curves can be analyzed by considering magnetic properties of the b-MnO2 and a-Mn2O3 ... the field of amplitude 6.5 Oe as a function of temperature at frequencies 1, 10, 100 and 1000 Hz nanoparticles of varying diameters between and 15 nm showed size-dependent TC between 36 and 41 K...
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Synthesis and Physical Properties of Polyester Amides Derived from Lipid-Based Components
... Study the effects of crystallinity on the physical properties of the PEAs Prepare a PEA with an ester to amide ratio of 4:1 in order to model the trend observed in the physical properties versus ... superior properties to all other lipid-based PEAs PEA’s had comparable and sometimes superior properties to petroleum-based PEAs Hypothesis #1: The increase of ester to amide ratio in the PEA structure ... in the PEA structure will result in a decrease of thermal stability The increase of ester to amide ratio in PEA structure will decrease the glass transition temperature The increase of ester to...
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Báo cáo khoa học: "Molecular structure and biochemical properties of lignins in relation to possible self-organization of lignin networks" pdf
... the structure and functions of plant cell walls Reticulation may be of importance in durability and mechanical properties, as recently discussed in the case of cell wall proteins by Cassab and ... the case of polysaccharides, phenolic acids and proteins, tannins and some other simple compounds The types of chemical bonds involved in these associations have been established only for polysaccharides, ... species The biosynthesis of the precursors and the regulation of lignification most likely occurs within individual cells and variations are observed according to the type and the age of cells (Wardrop,...
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Structure and magnetic properties of ni nio, co coo composite films
... understanding of the magnetic properties of Ni and NiO in the amorphous or disordered, cluster, nanocrystalline and well crystalline states and the understanding of the exchange coupling and magnetic ... 6.3 Effect of composition on the magnetic properties of Ni/NiO composites 131 6.4 Effect of magnetic field on the magnetic properteis of Ni/NiO composites 132 6.5 Phase and microstructure analysis ... nm and c) 100 nm Fig 3.7 SEM images of the annealed Ni films (500 oC) with a thickness of a) 15 nm; b) 50 nm and c) 100 nm Fig 3.8 Magnetization and coercivity as a function of the thickness of...
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The effects of additional nonmagnetic layers on structure and magnetic properties of l10 fept thin films
... magnetic properties of a number of potential alternative media alloys Table 5-I Layer structure and magnetic properties of FePt films with different thicknesses of Ag top layers and different deposition ... parts of the ingots Table 6-I Layer structure and magnetic properties of FePt films with different thicknesses of Ag intermediate layers and different deposition conditions Table 7-I FePt film structures ... layer and with 0.25 nm and nm Ag top layers Figure 5-6 TEM images and SAED patterns of the FePt films without Ag top layer (a and c) and with nm Ag top layer (b and d) Figure 5-7 HRTEM images of...
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Synthesis, structure and magnetic properties of nanowires and films by electrodeposition
... 4.3.1 Structure and microstructure of Co nanowires……………………… 93 4.3.2 Magnetic properties of Co nanowires……………………………… .96 4.4 Fe nanowires…………………………………………………………… … 97 4.4.1 Structure and microstructure ... Magnetic properties of ferrites Table 1.3: Magnetic properties of Sm-Co magnets Table 1.4: Magnetic properties of NdFeB Table 1.5: Magnetic properties of L10 alloys Table 1.6: Characteristics of high ... increase our understanding of the growth mechanism of single-crystal and poly-crystal nanowires, and the coercivity mechanism of nanowires and continuous films The investigations and results are...
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A comparative study of the biological and physical properties of viscosity enhanced root repair material (VERRM) AND MTA
... Portland Cement 2.2 Physical properties of MTA 2.3 Biological Properties of MTA 13 2.4 Comparison of White and Gray MTA 20 2.5 Comparison between MTA and ... STUDY OF THE BIOLOGICAL AND PHYSICAL PROPERTIES OF VISCOSITY ENHANCED ROOT REPAIR MATERIAL (VERRM) AND MTA PALLAVI UPPANGALA (BDS RGUHS, India) A THESIS SUBMITTED FOR THE DEGREE OF MASTER OF SCIENCE ... antimicrobial and antifungal properties similar to that of super-EBA and ZOE (Torabinejad et al 1995d, Al-Nazhan & Al-Judai 2003) The cytotoxic properties of MTA were lower than that of IRM and super-EBA...
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Investigation on the structure and magnetic properties of co2mnsi heusler alloy for spintronic application
... 4.1: (a) L21 structure of CMS; (b) Top view of MgO/Cr/CMS crystal structure 56 Figure 4.2: Schematic of MgO(sub)/Cr/CMS/Pt layer structure 57 Figure 4.3: The spectra of 2-theta XRD of Cr/CMS/Pt ... alloys 1.4.2.1 Effect of lattice parameter Magnetic and electronic properties of both half-Heusler in C1b structure and full-Heusler in L21 structure are dependent on the magnitude of the lattice parameter ... the structures, magnetic properties and interfacial morphologies of these MgO buffered CMS thin films were studied 3) Cr was used as the buffer layer The structures and magnetic properties of...
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