the structure and reaction processes of coal

... the context of recognition and disclosure Examples of the former include Imhoff and Thomas [1988] and Mittelstaedt, Nichols, and. .. Despite the absence of a specific theoretical, ... contrast, the evolution of accounting standards... the terms of option contracts and for substitution towards other forms of compensation I focus primarily on changes in the number of ... partial fulfillment of the requirements for the degree of Doctoral of Philosophy in the Fuqua School of Business of Duke University 2008 UMI Number: 3297727 3297727 2008 UMI Microform Copyright

Ngày tải lên: 03/06/2014, 01:05

... Thus, the the existence of a SOMA(n − 1,n) is equivalent to the existence of n − 1 MOLS of order n, and hence to the existence of a projective plane of order n.Ifnis a power of a prime then there ... more of: a row permutation, a column permutation, and renaming symbols. In this paper we study the structure of a SOMA, and then report on the use of computational group theory and graph theory ... and only if A and ∅ are the only subSOMAs of A. The disjoint union of subSOMAs of A is a subSOMA, and it is easy to see that if B and C are subSOMAs of A,thenB∩Cis a subSOMA if and only if B

Ngày tải lên: 07/08/2014, 06:20

... of the bandgap According to the calculations by Galanakis et al. [34], the origin of the bandgap in Heusler alloys is caused by the d-d states hybridization of X and Y transition metals, as the ... guidance on the understanding of structural and magnetic properties of CMS Heusler alloys and its further application into the field of spin-electronics. 1.6 Outline of thesis This thesis was ... from both 400°C and 600°C annealed samples. 38 The absence of (200) peak and the presence of (220) peak in the Phi- and 2-theta scans can confirmed the presence of A2-type structure in both

Ngày tải lên: 16/10/2015, 12:00

... temperature? ?and? ?replacement ratio? ?of? ?Ni with Mn.   The? ?dependence? ?of? ?the? ?conductivity on? ?the? ?nickel substitution ratio? ?and? ?the? ?synthetic  temperature are shown in Fig.13? ?and? ?14.  The? ? calculation  results  of? ? the? ? lithium  ... increases with increase? ?of? ?the? ?annealing temperature? ?and? ?decreases with? ?the? ?increase? ?of? ?the? ? ratio? ?of? ?Ni.? ?The? ?values are between 8.21? ?and? ?8.24 Å.? ?The? ?ionic conductivity? ?of? ?the? ?materials  is strongly dependent on? ?the? ?substitution ratio? ?of? ?Ni molecules for Mn .The? ?sample has? ?the? ? ... because? ?the? ?concentrations? ?of? ?Mn3+? ?and? ?Mn4+ are equal in? ?the? ?material. Then F ( )  is clearly  distinguished by? ?the? ?substitution? ?of? ?Ni? ?and? ?the? ?sequence A1g becomes distinct? ?and? ?sharper  from? ?the? ?region F ( ) ? ?The? ?change in A1g? ?and? ?F

Ngày tải lên: 28/06/2021, 19:38

... Determinants of the regioselectivity of the EGScatalyzed reduction reaction In the structure of the EGS-NADP+-EMDF complex, the C4 atom of the cofactor’s nicotinamide ring, which serves as the donor of the ... d-guanido group of Arg39 and the carboxamide group of Gln87 The adenine-ribose lies in the C39-endo conformation The ribose ring is packed against the a-carbons of both Gly14 and Gly17, and the central ... reductases On the basis of the holo-EGS structures, the NADP(H) cofactor can be readily modeled into the apo-structures of the other IFR-like enzymes, although small, accommodating adjustments to the surrounding

Ngày tải lên: 19/03/2023, 15:45

... i. Because of the nested nature of the models (i.e., the model with con- straints on the slopes is a subset of the baseline model), the difference in the chi-square values for the baseline model and the ... groups. The next step examined the invariance of the variance–covariance matrix of the errors (⌰). Finally, the equivalence of the variances of the latent variables (⌽) was evaluated. The results of ... Studies 9 and 10, but in the former the 60–69 age group differed from the other two, whereas in the latter the oldest group differed from the others. Again, there was no pattern in either the items

Ngày tải lên: 22/03/2014, 11:20

... inwards, the arms close and the tips of the arms wrap around the DNA. The amplitudes and time scales of the intramolecular motions experienced by the protein backbone are com- monly determined from the 15 N-NMR ... composed of Leu8, His16, and Gly17, is present in seven structures, and another antiparallel b-bulge (B2), composed of Val57, Glu87, and Arg88, is observed for all the structures. The secondary structure ... rigid parts of MC1, such as the a-helix and the b-strands, excluding bulges. The correlation functions for two residues, Val18 in a bulge and Asn70 in the arm, are also shown. The fast decay of the Val18

Ngày tải lên: 22/03/2014, 17:20

... organization of the Cc RNase gene and its derived mRNA isoforms. The rectangles represent the exons and the horizon- tal bold lines the introns. The black parts of the rectangles show the protein-coding ... (SpuUn_WGA56223_2:75333–76952) and Nematostella vectensis (NW_001834409:c1450413–1449631). The numbers above the boxes indicate the size of the exons, and those below the lines indicate the size of the introns. ... (AAUAAA). The first signal (AAUAUA) is located just 19 bp upstream of the poly(A) tail of the shorter transcript and the second one is located 46 bp upstream of the poly(A) tail of the alternative transcript.

Ngày tải lên: 23/03/2014, 06:20

... However, the overall structures of aB-crystallin and HSP27 predicted by these two models are very similar, and the positions of the b-strands correlate well with the corresponding positions of the ... sHsp The primary structure of the a-crystallin domain of human sHsp is very conservative and the loop connecting the b5 and b7 strands is shorter than the corresponding loop connecting the b5 and ... and in the N-terminal part of the b7 strands destabilize the structure of HSP22 Limited trypsinolysis of the wild-type HSP22 and its K137E and K137,141E mutants Fig Far-UV CD spectra of the wild-type

Ngày tải lên: 23/03/2014, 07:20

... residues Tyr988 and Lys987 of the second molecule of the ‘dimer’ clash with the region where the adenosyl group of AdoMet is bound in the MetH structure. While the side chain of Lys987 can move ... domain and the FMN domain of MSR Titration of the activation domain of MS (both the D963E ⁄ K1071N mutant and wild-type proteins) with the FMN domain of human MSR resulted in a quenching of the ... versus the concentration of the activation domain and the curves show the best fit of the data to the quadratic Eqn (1). Table 3 lists the calculated dissociation constants for the wild-type and

Ngày tải lên: 23/03/2014, 09:21

... from the heme normal (z¢ axis), a is the angle between the projection of the tilt of the z axis on the x¢, y¢ plane (defined direction of tilt of z and the x¢ axis), and j % a + c defines the location ... ligated water molecule The two structures of WT metHb and rWT metHbH2O, exhibit significant differences in the interaction of the FG loop with the heme and in the position of the B-helix, with ˚ ... of WT and the other of rWT metHb, exhibit differences that include important portions of the protein that we have characterized above Thus parts of the FG corner move away from the heme and the

Ngày tải lên: 23/03/2014, 17:22

... first introns and exons of Y1, Y2andY3. An alignment of the peptides predicted from the pleurocidin genes and pseudogenes is shown in Fig. 1. All of the genes, and even most of the pseudogenes, encode highly ... genes and pseudogenes and determined the antimicrobial activities of synthetic peptides predicted from these sequences. We have performed a comprehensive survey of the differential expression of these ... incubation was performed rather than the specified 30 min. First-strand cDNA was synthesized from 2 lgtotal RNA using the RetroScript kit (Ambion) and aliquots of the reaction products were subjected

Ngày tải lên: 31/03/2014, 07:20

... Background The liver sinusoids are lined by endothelial cells that have a unique structure and function essential for hepatic and systemic homeostasis Much of our understanding of the biology of the ... IM and BS conceived of the study IM carried out most of the experimental work and the writing AW and DGL participated in the determination of fenestration parameters, statistical analysis and ... arteriole and the portal venule [10] In average, the oxygen content of hepatic blood is rather low (~55 mmHg) However, oxygen gradients normally exist between the periportal and the perivenous areas of

Ngày tải lên: 13/08/2014, 13:20

... between the orthogonality of magnetic representation of data on the CHD to the orthogonal representation of information in the form of Qbits on the DHD The generation of various types of RNA from the ... the organization of these components The initial implication of this situation leads to the traditional concept of the unit of Page 20 of 29 D’Onofrio and An Theoretical Biology and Medical Modelling ... genetic files offer a higher degree of freedom in terms of active control then the preset headers of the CHD The Page 18 of 29 D’Onofrio and An Theoretical Biology and Medical Modelling 2010, 7:3

Ngày tải lên: 13/08/2014, 16:20

... patterns of singles and mixtures of 1%Au/TiO2 and MOx (M=Ce, Mn). 51 Figure 4-5 The TPD profiles of the NO x desorption from NO and O 2 pre-adsorbed samples 52 Figure 5-1 Schematic diagram of the ... formation of adsorbed species 80 6.2.3. Effect of CeO 2 on the consumption of adsorbed species 86 6.2.4. Conclusions of the influence of CeO 2 on the reaction mechanism 88 6.3. DRIFTS results and ... 3-6 The effect of titania type on the HC-SCR activity of Au/TiO 2 37 Figure 3-7 The effect of Au content on the HC-SCR activity as a function of temperature. 38 Figure 3-8 The effect of concentration

Ngày tải lên: 13/11/2014, 05:57

... to the nature of the participants, their statuses and roles: what kind of role relationships of one kind or another, both the types of speech role that they are taking on in the dialogue and the ... Introduction – presents the rationale of the study, the aims of the study, scope of the study, methods of the study, data collection, and the research design  Chapter two – Theoretical Background ... occasion of the 1000th anniversary of the foundation of Thang Long - Hanoi – focuses on its meaning and structure  Chapter four – Conclusion – summarizes the results of the study and offers some

Ngày tải lên: 28/02/2015, 11:54

... continuous maze-like structure to an isolated island structure. The formation of the island structure may realize the decoupling between FePt particles and cause the change of magnetization reversal ... Ag diffused into the FePt layer. The diffusion of Ag from the top of the films promoted the phase transformation of FePt. At the same time the intergranular exchange coupling in the FePt films ... promotion of the phase ordering in the FePt film. Correlating with the promotion of ordering transformation of FePt by Ag diffusion, the reduction of the exchange coupling further enhances the coercivity

Ngày tải lên: 13/09/2015, 21:23

... include tilting of the octahedra, displacements of the cations out of the centers of their 17 Thesis Vu Thi Huong coordination polyhedra, and distortions of the octahedra driven ... the center of the lattice,... neighboring magnetic ions The latter are usually manganese ions, which sit at the body centers of the cubic structure and carry most of the ... Because of the flexibility of bond angles inherent in the perovskite structure there are many different types of distortions which can occur from the ideal structure These include

Ngày tải lên: 24/06/2016, 12:58

... Fragments of HSQC and HMBC spectra of compound 1. Labels illustrate assignment of the amide linkage between the amino group of Asp and the carboxyl group of GalA residue E. Scheme 1. The structures of ... min), dried and analyzed by GC-MS with the standards prepared from D -GalN and (R)- and (S)-2-BuOH. The absolute configuration of L -aspartic acid was deter- mined by chiral HPLC of the oligosaccharide ... allow u s to p ropose the structures of oligosaccharides 1 and 2, as presented in Scheme 1. The o ligosaccharides were further analyzed by CE-MS and by CE-MS/MS (Figs 5 and 6). The mass spectra obtained...

Ngày tải lên: 19/02/2014, 16:20

... new structures form after two distinct tissues come together, and here we will examine the generation of the neural tube in the newt and the formation of the ducted submandibular glands of the ... many biologists and wish became the father of thought and the grandfather of observation: they claimed to see small but fully formed organisms in the sperm of men, horses, cocks and other animals and also ... preferentially to the anterior of the blastula, 7 these shorten and the tip of the archenteron meets the region of the presumptive mouth and fuses with it. Originally, it seemed that the archenteron...

Ngày tải lên: 05/03/2014, 11:21