... or K+ ions A number of isoforms of the a and b subunits has been isolated from various tissues of numerous species, and it has been repeatedly demonstrated that the function of Na+/ K+-ATPase requires ... moiety of the ATP molecule, but that it is merely within reach of the highly reactive azido group of 8-azido-ATP In the crystal structure of the Ca2+-ATPase, Lys492, the equivalent of Lys480 of the ... groups of Val304, Ala305, and Ile307 (M4) and through the side-chain oxygen atoms of Asn796 and Asp800 (M6) and Glu309 (M4) [26] A similar situation could be assumed for the coordination of cations...
Ngày tải lên: 24/03/2014, 00:21
... later The structures of A and B are shown in Fig 2, which revealed that the molecular structures of A and B are similar and also symmetric to our satisfaction Selected bond lengths ( and bond ... addition, the bond lengths of C5eC7 (1.47.1(4)) and C8eC9 (1.455(7)) are longer than that of C7e C8 (1.320(4)) and O3eC9 (1.304(4)), or the bond lengths of C14e C13 (1.457(4)) and C12eC11 (1.449(4)) ... 0.1701 1.028 Gof on F2 314 G Xu et al / Dyes and Pigments 101 (2014) 312e317 Fig Molecular structure of A and B showing 50% probability displacement 3.2 Linear absorption spectra and single-photon...
Ngày tải lên: 01/07/2014, 13:22
Structure, Properties, and Preparation Of Boronic Acid Derivatives Overview of Their Reactions and Applications
... 10 O O Me Structure, Properties, and Preparation Of Boronic Acid Derivatives Figure 1.3 Representations of the X-ray crystallographic structure of phenylboronic acid (A) ORTEP view of a dimeric ... OMe 41 42 1.2 Structure and Properties of Boronic Acid Derivatives polyols, by Kuivila and co-workers, described the preparation of several esters of phenylboronic acid by reaction of the latter, ... example, the pKa of PhB(OH)2 decreases 21 22 Structure, Properties, and Preparation Of Boronic Acid Derivatives from 8.8 to 6.8 and 4.5 upon formation of cyclic esters with glucose and fructose,...
Ngày tải lên: 02/07/2014, 12:53
Structure and mechanics of woven fabrics
... academic standards and professionalism of many outstanding people: Prof John Hearle, Prof Ron Postle, Prof Ning Pan, Prof George Stylios, Prof Tongxi Yu and many more I have become more versatile and ... Netherlands, Sijthoff and Noordhoff Hu J L (1994), Structure and Low-stress Mechanics of Woven Fabrics (PhD thesis, University of Manchester Institute of Science and Technology) Hu J L and Newton ... the Mechanical Properties of Textile Structures, (PhD thesis, University of Manchester Institute of Science and Technology) Leaf G A V (1980), Woven fabric tensile mechanics, in Mechanics of Flexible...
Ngày tải lên: 15/08/2015, 01:53
Experimental investigation for powder reinforcement effect on mechanical properties and natural frequency of isotropic hyper composite plate with various boundary conditions
... powder, and particle reinforcement of composite materials types with difference volume fraction of fiber They study of effect of fiber and resin types and the effect of volume fraction of fiber and ... 25 𝑐𝑚) and ( = 𝑚𝑚)) and different volume fraction of resin, powder and short fiber, as shown in Tables and Table Comparison of experimental mechanical properties results with theoretical mechanical ... work and other research had shown the good agreement of mechanical properties and natural frequency results And, the increasing of reinforcement powder cause increases the modulus of elasticity of...
Ngày tải lên: 09/09/2015, 10:06
Báo cáo khoa học: Kinetic characterization, structure modelling studies and crystallization of Trypanosoma brucei enolase docx
... with those of the rabbit muscle and S cerevisiae enolase and with the natural enzyme in a cytosolic fraction of T brucei Structure modelling, using available threedimensional enolase structures, ... mixture (50 lL total volume) contained lg of genomic DNA from T brucei stock 427, 100 pmol of each primer, 250 lM of each of the four deoxynucleotides, and U of rTaq DNA polymerase with the corresponding ... the concentration of enolase ể FEBS 2003 3208 V Hannaert et al (Eur J Biochem 270) Alignment of sequences and structure modelling of T brucei enolase A sequence alignment of T brucei enolase...
Ngày tải lên: 23/03/2014, 21:20
Báo cáo Y học: Isolation, enzymatic properties, and mode of action of an exo-1,3-b-glucanase from Trichoderma viride doc
... hydrolysis of 1,3-b-oligoglucosides, the subsite theory of Hiromi [46,47] was employed for construction of a subsite map for the estimation of affinities and number of subsites in the active center of ... kinetic analysis of the hydrolysis of oligosaccharides with different DP is an effective tool for characterization of subsite structure of the active center of exo-glucanases and glucosidases ... Km and Vmax for hydrolysis of G6G are similar to those of G3G (Tables and 4) Therefore, it may be assumed that the enzyme has a mixed mode of action towards laminarins and that it is capable of...
Ngày tải lên: 24/03/2014, 04:21
Báo cáo khoa học: Structure, signaling mechanism and regulation of the natriuretic peptide receptor guanylate cyclase pptx
... Kd of 500 nm In the presence of ANP, ECD dimerization was strongly enhanced (Kd 10 nm) [18] Crystal structures of the ECD with and without ANP We have determined the crystal structures of ... determination of the native structures in the absence of crystal contacts and in solution conditions closer to those of the native environment The three-dimensional reconstructions of the apo-ECD dimer and ... The actual and detailed mechanism of GC activation by ANP, namely the signal transduction mechanism, must await determination of NPRA’s GCD structure and ultimately the structure of full-length...
Ngày tải lên: 28/03/2014, 23:20
Báo cáo khoa học: Structure, linkage mapping and expression of the heart-type fatty acid-binding protein gene (fabp3 ) from zebrafish (Danio rerio) pot
... major band of approximately 200 bp, and two minor bands of 250 bp and 180 bp, were observed after agarose gel electrophoresis of nested PCR products from the CIP/TAPtreated RNA No specific band was ... lamprey and catfish, and the aerobic muscle of striped bass More recently, cDNAs have been characterized for an H-FABP from rainbow trout and two distinct isoforms of H-FABP from the ventricle of four ... result of evolutional divergence of transcriptional regulation Materials and methods Growth and maintenance of zebrafish adults and embryos Zebrafish were purchased from a local aquarium store and...
Ngày tải lên: 31/03/2014, 07:20
MECHANICAL DESIGN AND CONTROL OF THE PENDUBOT potx
... Coordinate Description of the Pendubot l1 is the length of link one, lc1 and lc2 are the distances to the center of mass of the respective links and q1 and q2 are the joint angles of the respective ... mass of link one the length of link one (See Figure 3.1) the distance to the center of mass of link (See Figure 3.1) the moment of inertia of link one about its centroid the total mass of link ... position and velocity data of the actual Pendubot and ysi is the output position and velocity data found by simulation runs θ is the vector of inertial parameters to be found and θlb and θub are...
Ngày tải lên: 31/03/2014, 23:20
Rheological heterogeneity, mechanical anisotropy and deformation of the continental lithosphere pdf
... certainly mechanically heterogeneous and anisotropic This raises the question of the influence of pre-existing rheological heterogeneities and mechanical anisotropy on the deformation of continents ... orientation of the [010] and [100] axes of olivine, respectively perpendicular and close to the strike of the orogen (Mainprice and Silver, 1993) These measurements hint at the existence of a crystallographic ... thermal and tectonic structure of the lithosphere; hence, they cannot be regarded as homogeneous and isotropic The existence of stiff and weak heterogeneities significantly influence the deformation of...
Ngày tải lên: 31/03/2014, 23:20
Management ownership structure, audit quality and impairment of assets--evidence from China
... words, the demand for financial reporting by the public and the government's participation in setting and enforcing rules and standards affect the ownership structure of enterprises and in turn ... academic professionals, Professor Ferdinand Gul, Professor Jeong Bong Kim, Professor Bin Srinidi, Professor T.J Wong, Dr Shimin Chen, Dr Peter Cheng, Dr Agnes Lo, Dr Raymond Wong, Dr Xiaodong Xu and ... decision of writing down the value of assets and the magnitude of write-down allow management of listed companies to exercise discretion in determining the recoverable value of relevant assets and...
Ngày tải lên: 01/06/2014, 14:02
Properties and Applications of Silicon Carbide Part 1 pdf
... by Use of Nickel and Tantalum from a Materials Science Point of View 171 Yu Cao and Lars Nyborg Other applications: Electrical, Structural and Biomedical 195 Properties and Applications of Ceramic ... Properties and Applications of Silicon Carbide Illumination of the samples with interband light of wavelength 365 nm gives rise to trapping of non-equilibrium charge carriers into the donor and ... sufficient to observe the hyperfine (HF) structure of the defect (a Umeda et al., 2006) As a result, based on the analysis of the HF structures of 29Si and 13C and first principles calculations, the...
Ngày tải lên: 20/06/2014, 04:20
Properties and Applications of Silicon Carbide Part 2 pptx
... instant of time The value of the first derivative was calculated as the right-hand side of rate equations (3), and that of the second derivative, as the derivative of the righthand side of Eqs ... the charge states of ISi and IC in 4H-SiC are the same as those in 3C-SiC, the ranges of m and n in Eqs (1a) and (2a) are limited to m ∈ {0, 1, 2, 3, and 4} and n ∈ {0, ±1, and ±2} Boron diffusion ... randomly scattered and channeled components of the profile, and D1 and D2 are the doses represented by each Pearson function For Pearson IV functions, K1 and K2 are normalized constants Rp1 and...
Ngày tải lên: 20/06/2014, 04:20
Properties and Applications of Silicon Carbide Part 3 doc
... involves first Step (A) and then the repetition of Steps (B) and (C) Figure is the process for low temperature deposition and evaluation of the film, consisting of Steps (A), (D) and (E) Step (D) is ... mechanism of SiC by comparing it with that of Si 78 Properties and Applications of Silicon Carbide Experimental procedure ¯ 4H-SiC (0001) C-face and (0001) Si-face epitaxial layers with 8◦ off-angles ... 310 and 410 nm, and at an angle of incidence of 75.8◦ In the evaluation of oxide thickness from the ellipsometric measurements, we assumed threelayer structures, i.e., the sample is composed of...
Ngày tải lên: 20/06/2014, 04:20
Properties and Applications of Silicon Carbide Part 4 pot
... a family of III-nitrides and ZnO, had spun a great deal of interest to magnetic properties of these materials The resulting 90 Properties and Applications of Silicon Carbide flurry of activities ... FM- and AFM-ordered supercells containing a pair of TM 104 Properties and Applications of Silicon Carbide atoms This is the amount of energy needed to flip the spin of one of these atoms and ... directions of their magnetic moments (a) (b) (c) Fig Supercells of TM-doped (a) 3C-SiC and (b) 4H-SiC, and (c) in-plane TM atom placement used in the calculations of magnetic moments and properties of...
Ngày tải lên: 20/06/2014, 04:20
Properties and Applications of Silicon Carbide Part 5 docx
... features of the equation of state of solids J Phys.: Condens Matter, 1, pp 1941-1963 Wang, W.; Takano, F.; Akinaga, H & Ofuchi, H (2007) Structural, magnetic, and magnetotransport properties of Mn-Si ... and S , i.e μ+ (s j ) μ (s j ) The h h (2) (2) magnitude H0 is the Hankel function of the zeroth order and of the second kind, H1 is SiC SiC the Hankel function of the first order and of ... Magnetic and Half-Metallic Properties Of Cr-Doped SiC IEEE Trans Magnetics, 41, pp 2733-2735 Lee, J.; Lim, J.; Khim, Z.; Park, Y.; Pearton, S & Chu, S (2003) Magnetic and structural properties of Co,...
Ngày tải lên: 20/06/2014, 04:20
Properties and Applications of Silicon Carbide Part 6 ppt
... characterization of chemical and biological agents and materials, remote and standoff early-warning for chemicalbiological warfare threats, and imaging of concealed weapons and explosives, just ... applications because of its distinct properties, the possibility of easy growth on a native oxide, and the presence of numerous polytypes [1-4] Silicon carbide is made up of equal parts silicon and carbon ... μm) 1.38 and 0.472, respectively The location of p-n junction is found to be 0.99μm The location of Ge layer is 1.28 μm Fig Electric field profiles of 3C-SiC THz IMPATTs 158 Properties and Applications...
Ngày tải lên: 20/06/2014, 04:20
Properties and Applications of Silicon Carbide Part 7 potx
... time (min) Fig Depth profiles of a) NiSi2; b) NiSi and c) Ni2Si derived from successive ion etchings and analysis of the Si 2p and Ni 2p3/2 levels in XPS The content of C, O and Si from the surface ... rearrangement of disordered C atoms, released from the formation of silicide, to hexagonal planar structures and the formation of ordered stacking structures along c axis The structure of C is less ... formation of alternating Ni-silicide and C layers The systems which show the tendency of the formation of periodic bands have relatively large parabolic rate constant k and k0 values (intercept of the...
Ngày tải lên: 20/06/2014, 04:20
Properties and Applications of Silicon Carbide Part 8 potx
... percolation of the filler particles and the fractal nature of filler distribution in non- 204 Properties and Applications of Silicon Carbide whisker particulate composites and related it to the ac and ... properties, and whisker defects Many of these will be considered in this section, and a discussion of interface effects and SiCw defects is given in Section 3.8 Properties of the Al2O3 and sintering ... sizes and orientations generally affect the properties of interest for the composite applications and so the Al2O3-SiCw structure has often been discussed as such The ball-milling process often...
Ngày tải lên: 20/06/2014, 04:20