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stations a broadcast address identifies all stations on the network a unicast address identifies one of the addresses in a group

bài giải bài tập truyền số liệu

bài giải bài tập truyền số liệu

Điện - Điện tử - Viễn thông

... is a onebyte field that serves as a flag A multicast address identifies a group of stations; a broadcast address identifies all stations on the network A unicast address identifies one of the addresses ... communicating at a same layer Headers and trailers are control data added at the beginning and the end of each data unit at each layer of the sender and removed at the corresponding layers of the ... frequency The two components of a signal are called I and Q The I component, called inphase, is shown on the horizontal axis; the Q component, called quadrature, is shown on the vertical axis a AM changes...
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Báo cáo khoa hoc:

Báo cáo khoa hoc:" Perfluorodecaline residue in the anterior chamber of a patient with an intact crystalline lens: a case report" ppt

Báo cáo khoa học

... operation (a and b) Giant retinal tear with shallow detached retina involving the macula in the right eye (c) Reattachment of retina after vitrectomy sis, but could not obtain these results as the ... perfluorophenanthrene [2,3] Perfluorodecaline may also have a role in the etiology of some changes, such as corneal oedema and deep corneal vascularization in the area of perfluorodecaline-endothelial contact ... perfluorodecalin residue in anterior chamber of a 17-year-old male with an intact crystalline lens Competing interests The author(s) declare that they have no competing interests Page of (page number...
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báo cáo hóa học:

báo cáo hóa học:" Research Article Resource Allocation for the Multiband Relay Channel: A Building Block for Hybrid Wireless Networks" ppt

Hóa học - Dầu khí

... relay and destination node, and a separate orthogonal link from the relay node to the destination node The parallel channel counterpart of [11] is later examined in [15] A sum power constraint ... know only the magnitudes of the channel gains The outage minimization and the corresponding optimal power control are considered when the network channel state is available at the source and the ... Multiband Relay Channel not, in general, be invariably better than all the others over all links At the outset, the joint power and bandwidth optimization appears challenging Luckily, the resulting...
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Tài liệu Báo cáo Y học: Thermostability of manganese- and iron-superoxide dismutases from Escherichia coli is determined by the characteristic position of a glutamine residue pdf

Tài liệu Báo cáo Y học: Thermostability of manganese- and iron-superoxide dismutases from Escherichia coli is determined by the characteristic position of a glutamine residue pdf

Báo cáo khoa học

... Superposition was calculated using the combinatorial extension method to maximize backbone contacts [42] Labels indicate the positions of the N- and C-termini, the iron ion and residues Q69 and A1 41 in ... Beauchamp and Fridovich [42] Protein concentration Estimation of the concentration of purified protein or in the lysates was by the method of Bradford using BSA as standard [43] Protection against ... combinatorial extension program CE [35] while mutational analyses were carried out using the CARA and ENCAD algorithms included in the GENEMINE program Bacterial strains and vectors The mutagenesis...
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Báo cáo Y học: Incorporation of 3-nitrotyrosine into the C-terminus of a-tubulin is reversible and not detrimental to dividing cells potx

Báo cáo Y học: Incorporation of 3-nitrotyrosine into the C-terminus of a-tubulin is reversible and not detrimental to dividing cells potx

Báo cáo khoa học

... significantly to the disappearance of nitrotyrosinated tubulin, the tyrosination/detyrosination at the C-terminus of a- tubulin is the main operating mechanism Furthermore, when cells maximally nitrotyrosinated ... documented in these cells [24] Rate of increase of Glutubulin during in vitro incubation was the same in both cases (data not shown), indicating that replacement of tyrosine by 3-nitrotyrosine at the ... tested six other cell lines for the nitrotyrosination state of tubulin during a cycle of nitrotyrosination and de-nitrotyrosination Variation of amount of nitrotyrosinated tubulin in each cell type...
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Báo cáo hóa học:

Báo cáo hóa học: " Research Article On the Throughput Capacity of Large Wireless Ad Hoc Networks Confined to a Region of Fixed Area" pptx

Hóa học - Dầu khí

... of the nodes distribution, all diagonal elements of M are equal and all offdiagonal elements of M are also equal The following lemma shows that the latter (off-diagonal) are much smaller than the ... examined the uniform throughput of large ad hoc networks confined to a region of fixed area It was found that, for a large enough total area, as the total number of nodes increases, the achievable ... effect of the increasing SINR is able to overcome the effect of increasing number of relays thus leading to an overall increase of the achievable throughput When the spatial node density is above...
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EFFECTIVE THERMAL INSULATION – THE OPERATIVE FACTOR OF A PASSIVE BUILDING MODEL ppt

EFFECTIVE THERMAL INSULATION – THE OPERATIVE FACTOR OF A PASSIVE BUILDING MODEL ppt

Kĩ thuật Viễn thông

... 2010) The curtain wall on façade is principally a couple skins separated by an "air corridor" The main layer of skins is usually insulating The air space between the skins layer is as insulation against ... Thermal Insulation Improvement of Thermal Insulation by Environmental Means Amjad Almusaed and Asaad Almssad Passive and Low Energy Housing by Optimization Amjad Almusaed and Asaad Almssad 23 Energy ... usage is a secondary contributor As inhabitants centers grow they are inclined to adjust a greater and greater area of land and include an equivalent amplify in average temperature Partially as...
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Báo cáo toán học:

Báo cáo toán học: "The Quantum Double of a Dual Andruskiewitsch-Schneider Algebra Is a Tame Algebra" pdf

Báo cáo khoa học

... generally tame Hopf algebras, we need more examples of tame Hopf algebras The Andruskiewitsch-Schneider algebra is a kind of generalization of generalized Taft algebra and of course Taft algebra Therefore, ... Therefore, it is natural to ask the following question: whether is the quantum double of dual AndruskiewitschSchneider algebra a tame algebra? In this paper, we give an a rmative answer As a consequence, ... we know that the most typical examples of basic Hopf algebras of finite representation type are Taft algebras and the dual of A( n, d, μ, q), which as an associative algebra is generated by two...
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Báo cáo toán học:

Báo cáo toán học: "The characteristic polynomial of a graph is reconstructible from the characteristic polynomials of its vertex-deleted subgraphs and their complements" doc

Báo cáo khoa học

... (G)} and since a graph has at least one main eigenvalue, so is aG,0 Discussion The original problem of whether P(G) uniquely determines aG,0 is still open It is part of a general class of reconstruction ... 2 the electronic journal of combinatorics (2000), #R12 of whether the polynomial deck of a simple graph on at least three vertices contains enough information to reconstruct its characteristic ... (G)}? The vertexdeleted subgraphs are not essential to reconstruct the elementary invariants of a graph For example, the number of edges of a graph is determined from that of the subgraphs as |E(G)|...
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Báo cáo toán học:

Báo cáo toán học: "The crossing number of a projective graph is quadratic in the face–width" doc

Báo cáo khoa học

... and so in this case the number of crossings in D is within a constant factor ∆2 /(8cg ) of crg (G) Remark 4.2 In the planar case of Theorem 1.2, the described approximation algorithm yields a ... grows quadratically with their size, which finishes the main proof Theorem 3.3 Let G be a graph that contains an I–collection of size k > M g , where Mg is the constant in Proposition 3.2 Then the ... 1)) Proof of Theorem 1.1 By Theorem 2.1, G contains a (projective diamond grid) P r minor It is moreover obvious that if a minor of G contains an I-collection, then an I-collection of the same size...
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Báo cáo toán học:

Báo cáo toán học: "The maximum size of a partial spread in H(4n + 1, q 2) is q 2n+1 + 1" docx

Báo cáo khoa học

... additional information on the structure of partial spreads meeting the bound of q + in H(5, q 2) is also obtained in [5], the question arises whether this is possible in the general case as well Acknowledgements ... be a graph corresponding with one of the relations in an association scheme, with valency k If S is a clique in this graph, then for every eigenvalue λ < of k the graph Γ the following inequality ... the matrix of eigenvalues of the association scheme If ∆m is the diagonal matrix with (∆m )ii the dimension of the eigenspace Vi , and if ∆n is the diagonal matrix with (∆n )jj the valency of the...
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Báo cáo toán học:

Báo cáo toán học: "The toric ideal of a matroid of rank 3 is generated by quadrics" pps

Báo cáo khoa học

... subsections Note that the matroid may have more bases than the bases that belong to the initial red or blue partitions In other words, the bases appearing in the figure are not all of the bases of the ... between the initial blue partition and the initial red partition In one case, for some two bases in the initial blue partition, some red base is included in the union of the two blue bases In the other ... Case I: case where there exists a set A of rank and size k in E − abd Then A contains c because A should intersect abc in the initial blue partition Similarly, A contains g because A should intersect...
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Báo cáo y học:

Báo cáo y học: " Induction of the HIV-1 Tat co-factor cyclin T1 during monocyte differentiation is required for the regulated expression of a large portion of cellular mRNAs" pptx

Báo cáo khoa học

... protein or the 55 kDa CDK9 protein, a minor isoform containing an amino terminal extension that arises from an upstream transcriptional start site [7] These CDK9 proteins are associated with a regulatory ... transcriptional profiling data, PMA treatment and cyclin T1 knock-down are two major variables in the RNA samples The microarray data were therefore analyzed to determine the effects of PMA treatment ... understand the genes responsible for the pattern observed in the dendrogram, a two-way ANOVA was fit to each probeset using activation and knockdown state as explanatory variables A linear contrast...
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KẾT CẤU MỚI  THE ENVIRONMENTAL CONSEQUENCES OF A BUILDING WITH A WIDE SPAN

KẾT CẤU MỚI THE ENVIRONMENTAL CONSEQUENCES OF A BUILDING WITH A WIDE SPAN

Kiến trúc - Xây dựng

... I am not in favour Where competing design solutions coexist in a market then the reasons favouring one rather than the other are probably marginal Of course, if a group of open air dining spaces ... and of mass 3kg/m ; OPTION In cold climates the insulating layer can be resistant to rain penetration and placed on top of the waterproof membrane The membrane is then kept warm and condensation ... convection at any point The relaxations calculation process of CFD would be similar if all nodes were at the same temperature with the same heat gain The heat gain would be equated to the temperature...
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The Marketing Strategy of a multinational join stock company.doc

The Marketing Strategy of a multinational join stock company.doc

Quản trị kinh doanh

... price of two-way air conditioners and lower installation and maintenance cost of air conditioner are the two key elements to increase the sales of a multinational join stock company’s air conditioners ... the theory that will be later based on to research The definition, the goals of marketing , the contents of marketing as well as implementation and control are main parts of chapter one Gaining ... multinational join stock company has had only branches dealing in conditioners nationwide in Hanoi, Hai Phong As a result, its market share is among the lowest in the market for air conditioners in...
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Tài liệu Issues Involved When Updating the Primary Key of a Parent Row pptx

Tài liệu Issues Involved When Updating the Primary Key of a Parent Row pptx

Kỹ thuật lập trình

... parent DataTable are also made in the child DataTable This is the default None Indicates that no action takes place SetDefault Indicates that the DataColumn values in the child DataTable are to ... Cascade; therefore, when you change the DataColumn in the parent DataTable on which the ForeignKeyConstraint was created, then the same change is also made in any corresponding DataRow objects in the ... stored in a DataTable named ordersDT The customersDT and ordersDT DataTable objects are related to each other using the following DataRelation: DataRelation customersOrdersDataRel = new DataRelation(...
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Tài liệu Exporting the Results of a Query to an Array pdf

Tài liệu Exporting the Results of a Query to an Array pdf

Kỹ thuật lập trình

... field values corresponding to the values in the columns and rows selected from the table dt The DataTable to convert to the array rowCount The number of rows to export to the array startRow The ... or method that converts the Recordset into a two-dimensional array This solution presents an ADO.NET method, which is also called GetRows( ), that duplicates the functionality of the ADO GetRows( ... method The prototype for the ADO.NET method is: Object[][] tableArray = GetRows(DataTable dt, Integer rowCount, Integer startRow, String[] colName); Parameters tableArray Returns an array of field...
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Tài liệu Báo cáo khoa học: Involvement of two positively charged residues of Chlamydomonas reinhardtii glyceraldehyde-3-phosphate dehydrogenase in the assembly process of a bi-enzyme complex involved in CO2 assimilation doc

Tài liệu Báo cáo khoa học: Involvement of two positively charged residues of Chlamydomonas reinhardtii glyceraldehyde-3-phosphate dehydrogenase in the assembly process of a bi-enzyme complex involved in CO2 assimilation doc

Báo cáo khoa học

... PsativumA SoleraceaA 197 Chlamy 200 Synechocystis 198 Synechococcus 199 R R R R R R R R R R R R R R R R R R R R A A A A A A A A A A R R R R R R R R R R A A A A A A A A A A A A A A A A A A A A A ... the association phase; the beginning of the dissociation phase is marked by the arrow on the right The experimental data were analyzed using global tting assuming a : interaction with BIAEVALUATION ... dierent concentrations indicated on each curve of K12 8A mutant GAPDH, K128E mutant GAPDH, R19 7A mutant GAPDH, and R197E mutant GAPDH In all plots, the arrow on the left indicates the beginning of the...
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Tài liệu Báo cáo khoa học:

Tài liệu Báo cáo khoa học: "Learning the Latent Semantics of a Concept from its Definition" pptx

Báo cáo khoa học

... Proceedings of the 50th Annual Meeting of the Association for Computational Linguistics Jay J Jiang and David W Conrath 1997 Finding predominant word senses in untagged text In Proceedings of International ... Computing, pages 363–369 Nathan Srebro and Tommi Jaakkola 2003 Weighted low-rank approximations In Proceedings of the Twentieth International Conference on Machine Learning Kristina Toutanova, Dan ... Linguistics Ravi Sinha and Rada Mihalcea 2007 Unsupervised graph-based word sense disambiguation using measures of word semantic similarity In Proceedings of the IEEE International Conference on Semantic...
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Báo cáo khóa học: Mutational and computational analysis of the role of conserved residues in the active site of a family 18 chitinase docx

Báo cáo khóa học: Mutational and computational analysis of the role of conserved residues in the active site of a family 18 chitinase docx

Báo cáo khoa học

... The pKa of Asp140 is much lower than that of Asp142 and Glu144 in all situations where all three residues are present and the one proton shared by Asp140 and Asp142 appears to remain on Asp142 ... irregular titration curves indicating that one proton was alternating between the two residues This prevented determination of individual pKa values Addition of the two titration curves yielded a flat ... solvent, and a dielectric constant of eight was used for the protein [39] A significant speed-up of the calculations was achieved by calculating pKa values for only a subset of the titratable groups in...
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