một số hình thức hoạt động của pr

Text book of electrical technology

Ngày tải lên : 26/11/2014, 11:10

... Mechanics—Relationship Between Principal Quantities in Trapezoidal Diagram—Relationship Between Principal Quantities in Quadrilateral Diagram —Tractive Effort for Propulsion of a Train—Power Output ... (IR/V 1) × 100 represents the voltage drop in both conductors expressed as a percentage of the voltage at the sending end It is known as percentage drop ∴ % η = 100 − % drop In the present case total ... the voltage has been stepped down to a proper value by the transformers This 600-V d.c power is generally used by electric railways and for electrolytic processes (b) a rotary converter gives...

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RAMIFICATION OF THE GAUSS MAP AND THE TOTAL CURVATURE OF A COMPLETE MINIMAL SURFACE

Ngày tải lên : 14/10/2015, 07:57

... class represented by the image of G : M → Pk (C) is m times the fundamental homology class of Pk (C),then we have KdA = −2πm as the total curvature of M This proves the Theorem The proof of ... minimal surface Thanks to the proof of Theorem 3.1 in [11], we can obtain q (1 − j=1 k k ) < (k + 1)(m − − 1) + m mj This gives a contradiction So M must be flat Theorem is proved Auxiliary lemmas ... = Wz (fi0 , · · · , fip ) denotes the Wronskian of fi0 , · · · , fip with respect to z Proposition ([8, Proposition 2.1.6]) For two holomorphic local coordinates z and ξ and a holomorphic function...

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Báo cáo y học: "Monocyte surface expression of Fcγ receptor RI (CD64), a biomarker reflecting type-I interferon levels in systemic lupus erythematosus" pptx

Ngày tải lên : 12/08/2014, 12:20

... USA) As demonstrated in previous studies, these ISGs are robust markers of IFN-I upregulation associated with SLE [3-5] Gene expression was normalized to β-actin, and expression relative to the ... CXCL9 expression (Figure 3c) Taken together, these data suggest that surface CD64 expression on monocytes from SLE patients reflects primarily IFN-I exposure SLE serum induces surface expression ... responsible for the upregulation of CD64 expression on monocytes from SLE patients Supporting this view, the ability of individual SLE sera to induce CD64 expression correlated with CD64 expression on...

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Tài liệu Báo cáo khoa học: Characterization of a chemosensory protein (ASP3c) from honeybee (Apis mellifera L.) as a brood pheromone carrier pdf

Ngày tải lên : 21/02/2014, 03:20

... expression vector The cDNA encoding the precursor ASP3c with its native signal peptide was amplified by PCR using the following primers: 5¢ primer, 5¢-GAGCCCGGATCCACCATGAA GGTCTCAATAATT 3¢; 3¢ primer, ... recombinant protein, migrating at approximately 12 kDa, was detectable by Serva blue G staining The electrophoretic profile (Fig 3A) reveals the protein regularly accumulating over an expression ... reached, in approximately as verified by time course experiments (not shown), the relative proportion of probe bound to ASP3c was calculated by measuring fluorescence emission (expressed in arbitrary...

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Tài liệu Báo cáo khoa học: "Human Evaluation of a German Surface Realisation Ranker" docx

Ngày tải lên : 22/02/2014, 02:20

... äußerst umstritten." PRED SUBJ 'sein[1:Williams] ' PRED 'Williams' PRED SUBJ XCOMP-PRED 378 'umstritten' [1:Williams] ADJUNCT 274 PRED 'äußerst' PRED ADJUNCT ADJUNCT ... PRED ADJUNCT ADJUNCT OBJ 88 65 TOPIC 'in' PRED 'Politik' 115 PRED 171 SUBJ 'britisch' [115:Politik] SPEC DET PRED 'die' [1:Williams] Williams war in der britischen ... (2007) The three alternatives were presented in random order for each item, and the items were presented in random order for each participant Some items were presented randomly to participants...

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Tài liệu Báo cáo Y học: Divergent members of a soybean (Glycine max L.) 4-coumarate:coenzyme A ligase gene family potx

Ngày tải lên : 22/02/2014, 04:20

... oomycete [30], as described previously [31] 4CL activity assay Protein extracts were prepared from cell suspension cultures of soybean according to previously reported procedures [29] Enzyme activity ... remains about the relative proportion of the expressed transcript levels corresponding to the two closely related genes, 4CL3 or the closely related 4CL4 protein very probably represent the highly elicitor-induced ... Despite its central position at a branch point of phenylpropanoid metabolism in plants, the precise function of 4CL isoforms in providing CoA ester precursors for the synthesis of different classes...

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Báo cáo khoa học: Characterization of a cathepsin L-associated protein in Artemia and its relationship to the FAS-I family of cell adhesion proteins pot

Ngày tải lên : 07/03/2014, 16:20

... codon onward, indicate that the preproform of both CL and CLAP have well deﬁned hydrophobic signals in their N-terminus (Fig 7) [24] Thus prepro-CL and prepro-CLAP probably enter the endoplasmic ... unit Overall, the combined data indicate that the primary translation product (prepro-CLAP) is processed at the N-terminus between G43 and E44, and probably at the C-terminus at D306, the latter ... Modiﬁcations to the predicted amino acid sequence of prepro-CLAP, including removal of N- and C-terminal peptides, would probably be achieved along the ER/Golgi pathway Alternatively, prepro-CLAP could...

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Báo cáo khoa học: Puriﬁcation and properties of a new S-adenosyl-Lmethionine:ﬂavonoid 4¢-O-methyltransferase from carnation (Dianthus caryophyllus L.) pot

Ngày tải lên : 08/03/2014, 08:20

... HCl Product formation was determined analyzing the reaction mixture through HPLC, measuring the nmols of kaempferide (XIII) formed per per mg protein and expressing the activity as nkat mg)1Æprotein ... of methylated compound formed from its corresponding unmethylated precursor per per mg protein and expressed as nkat per mg protein Kinetic values (Vmax and Km) were determined with the Lineweaver–Burk ... against the buffer B and concentrated as described previously: these fractions were considered as pure enzyme preparations Protein quantitation Total protein concentration was measured at every step...

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Báo cáo khoa học: Production and characterization of a thermostable L-threonine dehydrogenase from the hyperthermophilic archaeon Pyrococcus furiosus docx

Ngày tải lên : 16/03/2014, 14:20

... Spring Harbor Laboratory Press, Cold Spring Harbor, NY 33 Bradford MM (1976) A rapid and sensitive method for the quantitation of microgram quantities of protein utilizing the principle of protein-dye ... Overexpression of archaeal proteins in Escherichia coli Biotechnol Lett 20, 207–210 31 Sorensen HP, Sperling-Petersen HU & Mortensen KK (2003) Production of recombinant thermostable proteins expressed ... PAGE Protein composition was analyzed by SDS ⁄ PAGE (10% gel) [32], using a Mini-Protean system (Bio-Rad) Protein samples for SDS ⁄ PAGE were prepared by heating for 30 at 100 °C in the presence...

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Báo cáo khoa học: Cofactor-independent oxygenation reactions catalyzed by soluble methane monooxygenase at the surface of a modiﬁed gold electrode pot

Ngày tải lên : 17/03/2014, 09:20

... (Fig 5) We assume from this that the presence of MMOB suppressed the production of hydrogen peroxide by MMOH In the presence of MMOBtru, however, catalase produced a marked increase in the negative ... system Product was only observed when MMOH/MMOB and catalase were present (Table 1) In the absence of catalase or MMOB no product was formed It is possible to rationalize these observations by proposing ... is no substrate present When substrate is present we observe formation of both hydrogen peroxide and product The paradox that needs to be resolved here is if hydrogen peroxide production is shut...

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Báo cáo " Research, design and fabrication of a high-power combiner using Wilkinson bridge of L-band " pptx

Ngày tải lên : 22/03/2014, 11:20

... belong to the research project KC.01.12/06-10 from State Programs on Scientific Research of Vietnam One of these authors would like to thank the support from the research project QT 09-13, Vietnam ... After simulink modelling, the Wilkinson bridge was designed using the modern accurate circuit imprint technology [2,3](figure 4b) 188 D.T Thuy et al / VNU Journal of Science, Mathematics - Physics ... magnitude (c) S parameter magnitude Fig The semulink results Base on Wilkinson brigde methods, we propose a combination methods from the medium power modul and the small power modul (Figure 3) 0o...

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Báo cáo khoa học: Creation of a new eye lens crystallin (Gambeta) through structure-guided mutagenic grafting of the surface of bB2 crystallin onto the hydrophobic core of cB crystallin pot

Ngày tải lên : 23/03/2014, 04:21

... sequences of its progenitor crystallins, cB and bB2 Figure also provides Fig The surface ⁄ interior transplant (Top) The green font represents residues that are not present in the progenitors, Structure-based ... also protect it from cold precipitation, and that we have removed this protection by truncating Gambeta and bB2 It may be recalled that we truncated these two proteins in order to allow proper ... N-terminus was not produced Protein expression and puriﬁcation Gambeta was expressed by growing transformed BL21DE3pLysS cells in LB medium, using induction with a ﬁnal concentration of mm isopropyl thio-b-d-galactoside...

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Báo cáo khoa học: Inhibitory properties and solution structure of a potent Bowman–Birk protease inhibitor from lentil (Lens culinaris, L) seeds ppt

Ngày tải lên : 23/03/2014, 10:21

... charges were taken from the topallhdg.pro le present in the xplor library Torsional parameters for Pro20 and Pro46 were dened by setting the appropriate patch for cisprolines At this stage, no disulphide ... interactions provided a means for dening the cis-trans conformation for the two pairs of contiguous prolines Thus, Pro20 and Pro46 were found in trans-conformation, because of the strong Pro19Ha-Pro20Hd ... found in trans-conformation, because of the strong Pro19Ha-Pro20Hd and Pro45Ha-Pro46Hd interactions, whereas Pro19 and Pro45 were classied as cis by means of the detected sequential daa(i,i+1)...

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Báo cáo khoa học: N-Terminal segment of potato virus X coat protein subunits is glycosylated and mediates formation of a bound water shell on the virion surface docx

Ngày tải lên : 23/03/2014, 13:20

... virus X protein (Eur J Biochem 271) 3141 Fig Stages of glycosylation site identification (A) Initial part of RP-HPLC profile of PVX preparation after modification of the trypsin treatment procedure ... b-sheet We presume that removal of this structure leads to drastic changes in the physicochemical properties of the PVX virion surface It is widely known that water in close proximity to the protein ... hydrolysis [26] For these experiments, we modified the procedure for preparing the N-terminal PVX CP segment: time, temperature and trypsin/protein ratio were kept the same, but the PVX virion...

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Báo cáo khoa học: "Correlating Human and Automatic Evaluation of a German Surface Realiser" doc

Ngày tải lên : 23/03/2014, 17:20

... will be equally appropriate for other languages, especially freer word order ones, such as German The scores given by each metric for the data used in both experiments are presented in Table ... parser for German dependency and constituency representations In Proceedings of the Workshop on Parsing German, pages 47–54, Columbus, Ohio, June We presented data that examined the correlation ... generation in the presense of variation In Proceedings of CICLING, pages 341–351 Aoife Cahill and Martin Forst 2009 Human Evaluation of a German Surface Realisation Ranker In Proceedings of EACL...

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Báo cáo khoa học: A DNA-binding surface of SPO11-1, an Arabidopsis SPO11 orthologue required for normal meiosis docx

Ngày tải lên : 29/03/2014, 09:20

... protein Y Shingu et al A B C 2362 Fig Expression of soluble TF-tagged SPO11-1 and co-expression of tag-free SPO11-1 and related proteins (A) Expression vectors TF-SPO11-1 and free TF were expressed ... While the co-expression of an SPO11-1-interacting protein, PRD1N (the N-terminal domain of PRD1 [26]), with TF-SPO11-1 maintained almost all of the PRD1N in a soluble form, the co-expression of ... interactions of these two proteins with SPO11-1 in vitro, we co-expressed SPO11-2 or PRD1N with TF-SPO11-1 or TF on CV2 and CV1, respectively, considering that these proteins were mostly expressed in an...

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Báo cáo Y học: A single charged surface residue modiﬁes the activity of ikitoxin, a beta-type Na+ channel toxin from Parabuthus transvaalicus doc

Ngày tải lên : 31/03/2014, 08:20

... has been suggested that in protein–protein interactions at least six parameters including solvation potential, residue interface propensity, hydrophobicity, planarity, protrusion and accessible ... biological activity The surface potential calculation presentation also indicated a signiﬁcant structural difference (i.e protrusion) where the region preceding the a-helix is transformed from a neutral ... cabbage looper larvae, neither toxin produced noticeable effects In particular, the contraction and paralysis that are typically produced by excitatory or depressant insect-speciﬁc toxins were...

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improving near field confinement of a bowtie aperture using surface plasmon polaritons

Ngày tải lên : 06/05/2014, 08:53

... Li, and X Xu, Opt Express 18, 7369 ͑2010͒ N Murphy-DuBay, L Wang, and X Xu, Appl Phys A: Mater Sci Process 93, 881 ͑2008͒ Y Kim, S Kim, H Jung, E Lee, and J W Hahn, Opt Express 17, 19476 ͑2009͒ ... optical spot along the y-direction when the grooves are present Figure compares the field distributions with and without grooves A single bowtie produces an elliptical spot beyond the exit plane due ... When the grooves are present, the SPPs are partially reflected back toward the bowtie With periodicity close to half the SPP wavelength, the reflected SPPs superimpose with the propagating field The...

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Báo cáo toán học: " Spin-related tunneling through a nanostructured electric-magnetic barrier on the surface of a topological insulator" potx

Ngày tải lên : 20/06/2014, 20:20

... momentum of the electron are locked For instance in a tunneling process, the reﬂected electron will reverse its spin due to the helical property of the surface states, i.e., the spin-momentum locking ... incidence, i.e., this is the socalled Klein tunneling, induced by the helical property of the Dirac fermion This perfect tunneling process can even occur for a low incident energy, and a high and wide ... due to the spin-momentum locking Next we consider the tunneling process through a pure magnetic single barrier The transmission probability is shown in Figure 3a for a magnetic barrier (B = 1)...

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Báo cáo hóa học: " Research Article Convergence Analysis of a Mixed Controlled l2 − l p Adaptive Algorithm" potx

Ngày tải lên : 21/06/2014, 08:20

... ≥ , (5) Proposed Algorithm To overcome the above-mentioned problem, a modiﬁed approach is proposed where both constraints of the step size and the control parameter are eliminated The proposed ... ensure convergence of the iterative procedure and produce less misadjustment error Here at this point, we have to evaluate the expression E[sign(en )xn ] using Price’s theorem [20] in the following ... the LMS algorithm is proved 4 EURASIP Journal on Advances in Signal Processing 3.2 Second Moment Behavior of the Weight Error Vector T From (12) we get the following expression for vn+1 vn+1...

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