Báo cáo " MODEL OF CONDUCTIVITY FOR PEROVSKITES BASED ON THE SCALING PROPERTY OF GRAIN BOUNDARY " ppt
Báo cáo " MODEL OF CONDUCTIVITY FOR PEROVSKITES BASED ON THE SCALING PROPERTY OF GRAIN BOUNDARY " ppt
... of Physics, College of Sciences - VNUAbstract. We present the percolation-theory model for explanation of conductivity of perovskites based on the scaling property of grain boundary formation. ... JOURNAL OF SCIENCE, Mathematics - Physics. T.XXI, N04 - 2005 MODEL OF CONDUCTIVITY FOR PEROVSKITES BASED ON THE SCALING PROPERTY OF GRAIN BOUNDARY Phung Quoc Thanh, Hoang Nam Nhat, Bac h Thanh CongDepartment ... AMS-TEX48 Model of conductivity for perovskites based on 49with Dis another critical exponent. The abo ve relations, however, do not include the term for the temperature dependence. The common approach...
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Tài liệu Báo cáo khoa học: "Organizing Encyclopedic Knowledge based on the Web and its Application to Question Answering" ppt
... to the description. For the second type of question, human examineeswould search their knowledge base for the description of each of four candidate terms. Then they wouldchoose the candidate ... improved, and the coverage was comparable with that for the Nichi-gai dictionary. On the other hand, in the case where random choicewas performed, the Nichigai dictionary and the Web- based encyclopedia ... Examinations The Class II examination consists of quadruple-choicequestions, among which technical term questions canbe subdivided into two types.In the first type of question, examinees choosethe...
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Báo cáo Y học: Kinetic and biochemical analyses on the reaction mechanism of a bacterial ATP-citrate lyase ppt
... Ks1<<Ks2<<Ks3, binding of the firstand second molecules of citrate drastically decrease the affinity of the enzyme for the second and third molecules,respectively. The dissociation constant of the first citratemolecule ... Anotherfunction of AclB was found to be stabilization of the enzyme, as AclB prevented the degradation of AclA thatwas otherwise observed in the absence of AclB.After the phosphorylation, ... mechanism of mammalian ACL [23], the final step of the reaction can be assumed to be the nucleophilic attack of CoA to the phosphorylated carbonyl carbon of citrylphosphate, and the cleavage of the...
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Báo cáo khoa học: Temperature and salts effects on the peptidase activities of the recombinant metallooligopeptidases neurolysin and thimet oligopeptidase pdf
... [3]; and from the deconvolution of CD at 37 °C in the absence of NaCl (195–260 nm) was 51%. For the spectrum of TOP in the sameconditions the deconvolution indicated 45% of a helixcontent. This ... Val position in order to verify the influence of the nature of the amino acid at this position on determination of the cleavage sites and on the amount of their hydrolysis. This series of peptides ... and the variations of the cleavage sites wereevaluated under different conditions of temperature andsalt concentration. The relative amount of cleavage variedwith the nature of the substitution...
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Báo cáo khoa học: "Automatic Text Summarization Based on the Global " ppt
... is the following: 1. Spreading activation is performed in such a way that two elements have the same activa- tion value if they are coreferent or One of them is the syntactic head of the other. ... conjecture and assertion), (5) rhetorical rela- tion (such as reason and example), and (6) position of sentence in the whole text. Most of these are ex- tracted by a shallow processing of the ... the values of whose relational attributes are agt. pat. obj. pos, cnt, cau, end, sbra, and so forth. • the antecedent of a zero anaphor in it with some of the above values for the relational...
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Tài liệu Báo cáo khoa học: "Enhanced word decomposition by calibrating the decision threshold of probabilistic models and using a model ensemble" pdf
... ap-proaches is based on the learning aspect during the construction of the morphological model. If the data for training the model has the same struc-ture as the desired output of the morphologicalanalysis, ... PROMODES-H improves the correctprediction of non-boundaries at the beginning of the word whereas PROMODES performs better at the end. For the boundary prediction in Figure 4b the signal disappears ... is the reason for the decreasein precision. On the other side, more false non-378boundaries (FN) are turned into boundaries thanin the opposite direction with a net increase of 0.0819 of...
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Báo cáo khoa học: C fi G base mutations in the CArG box of c-fos serum response element alter its bending flexibility Consequences for core-SRF recognition potx
... dynamics of the bent form one determinant for specific complexformation. They appear to be as important as the con-servation of the DNA base sequence. Therefore, the basic question is no longer ... ⁄ +5 of the CArG box are highly con-served [19]. In the case of SREGfos, the G–C base pairinversion at )5 position precludes formation of the hydrogen bond between the K163 residue of the core-SRF ... °C, the higher entropy of the linearform is likely due to its higher flexibility, the highermobility of the hydration shell, or both. In the curved conformation, the strain exerted on the secon-dary...
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Báo cáo khoa học: "Automated Essay Scoring Based on Finite State Transducer: towards ASR Transcription of Oral English Speech" docx
... in the edit distance in this section, the cost of substi-tutions is less than that of insertions and deletion-s. Here, we assume that the cost of substitutions is based on the similarity of the ... is the linear combination of the weights of insertion, deletion and substi-tution. The relation is shown in equation (2),where ins, del and sub are the appearance times of insertions, deletions ... complete the current FST model, we add the similarity of syn-onym to extend the FST model so that it can handlemore situations. The extension of the FST model is mainly reflect-ed in calculation of...
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Báo cáo khoa học: Spectroscopic and kinetic properties of the horseradish peroxidase mutant T171S Evidence for selective effects on the reduced state of the enzyme potx
... dependent on the strength of the Fe-Hisbond and hence on the status of the proximal HisH-bond. It appears that one can readily rationalize the general trends but not the magnitude of the chan-ges ... comparison of the electronic absorptionand RR spectra of the wild type and Thr171Ser eitherin the presence of the aromatic donor BHA or atalkaline pH. Addition of saturating amounts of BHAdid ... of all peroxidases and is a consequence of the strong H-bond between the proximal His and Asp resi-dues that is weakened at alkaline pH. Therefore, on the basis of their sensitivity to pH, the...
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Báo cáo khoa học: Detection of nucleolar organizer and mitochondrial DNA insertion regions based on the isochore map of Arabidopsis thaliana ppt
... a decrease of the GC content,while a drop in the curve indicates an increase of the GC content. The slope of the curve denotes the vari-ation rate of the GC content. According to the z¢curve, ... whichis defined as the variance of GC content of the regiondivided by that of the whole genome. If h ( 1, the variance of GC content of the region may be smallenough to be considered as an isochore. ... indicates adecrease of the GC content or an increase of the AT con-tent, otherwise, a drop in the curve, i.e. k¢ < 0 indicates anincrease of the GC content or a decrease of the AT content.AcknowledgementsWe...
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