signals in the frequency domain
Báo cáo hóa học: " Permutation Correction in the Frequency Domain in Blind Separation of Speech Mixtures" ppt
Ngày tải lên :
22/06/2014, 23:20
... by minimizing a mean square error (minimal distortion principle) [8] This can be realized in the frequency domain by multiplying the outputs by the inverse of the unmixing matrix [9, 10] The ... eliminated or reduced to a global ambiguity not dependent on the frequency This is the main problem in a frequency domain approach In the context of blind separation of audio signals, it is the ... envisaged They exploit either the continuity of the unmixing filters or the time structure of speech signals The first idea consists of ensuring the continuity of the separation filter frequency...
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Báo cáo hóa học: " Source Depth Estimation Using a Horizontal Array by Matched-Mode Processing in the Frequency-Wavenumber Domain" pot
Ngày tải lên :
22/06/2014, 23:20
... spectrum of the modes is discrete (cf Section 2.1) The dispersion curves, representing the modes, are separated in the f −k domain [15] As a result, and using the fact that the HLA is located on the ... In the case of a long HLA, the expression (4) remains a valid approximation of the f − k transform The energy is located on the dispersion curves (kr = krm ) of the modes At each frequency, the ... emitted the auto-correlation of the source signal, which is shorter in time Besides, as the guide is time invariant, the emission of the three signals is equivalent to the emission of their sum...
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Báo cáo hóa học: " Optimal Detector for Multiplicative Watermarks Embedded in the DFT Domain of Non-White Signals" pptx
Ngày tải lên :
23/06/2014, 01:20
... and the imaginary part of S(k), respectively As mentioned in the introduction, the watermark embedding is performed in the Fourier domain and more specifically in its magnitude Thus, starting ... p) (2) 2523 In order to compute the final watermarked signal s (in the spatial domain) , the inverse discrete Fourier transform (IDFT) is applied to the watermarked magnitude M and the initial DFT ... hypothesis (H0 ) can occur either in the case that the signal y is not watermarked (hypothesis (H0a )) or in the case that the signal y is watermarked by another watermark W , where W = W (hypothesis...
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Báo cáo khoa học: Conserved residues in the N-domain of the AAA+ chaperone ClpA regulate substrate recognition and unfolding pdf
Ngày tải lên :
07/03/2014, 05:20
... unfolding of some protein substrates is initiated through productive binding to the substrate via two elements in ClpA, one in the N -domain and the other in the pore of the ClpA hexamer In the ... N -domain and two ATP-binding domains referred to as the D1 and D2 domains Interestingly, deletion of the N -domain from ClpA not only abolishes binding of the adaptor protein, ClpS, but additionally ... residues in the N -domain In this case, it is appealing to speculate that ClpS itself may act as the second binding site required for unfolding, thereby replacing a need for the N -domain Experimental...
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Báo cáo khoa học: Origins of DNA replication in the three domains of life pdf
Ngày tải lên :
07/03/2014, 21:20
... seen in Fig 4, both proteins possess N-terminal AAA+ domains and C-terminal DNA binding domains (DBDs) In DnaA, the DBD contains a helix-turn-helix; in the archaeal proteins, the DBD has a winged ... are shown in cyan with ADP indicated in red The helix-turn-helix (HTH)-containing DNA binding domain of DnaA is in green and the winged helix (WH)-containing domain of Orc1 ⁄ Cdc6 is in dark blue ... helix domain (reviewed in [62]) Interestingly, the relative position of the AAA+ domain and the winged helix domain of Aeropyrum pernix Orc1 ⁄ Cdc6 homolog was in uenced by the nature of the nucleotide...
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Báo cáo khoa học: Functional symmetry in the isolated domain demonstrated by N-ethylmaleimide labelling pdf
Ngày tải lên :
08/03/2014, 08:20
... chain to the nucleotide-binding pocket [3] We describe the engineering, expression and purification of single-cysteine-containing proteins comprising either the C-terminal NBD or the N-terminal ... N-terminal NBD of P-glycoprotein contains only a single cysteine in the Walker-A motif [43] Thus, MBP-NBD-Nter is a 75-kDa fusion protein containing a single cysteine residue located in the ATP-binding ... on p[NH]ppA binding, in agreement with the results obtained here The nonidentical interaction of GTP may be related to another variation in sequence in the vicinity of the ATP-binding pocket,...
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Báo cáo khoa học: The role of the Fe-S cluster in the sensory domain of nitrogenase transcriptional activator VnfA from Azotobacter vinelandii potx
Ngày tải lên :
15/03/2014, 09:20
... conformational change in a similar manner to NifA; the binding of the ATP analog induces the rearrangement of the GAF and possible AAA+ (the central domain) domains in VnfA Indeed, the limited protease ... of the N-terminal domain in this variant Because sensing is a principal function of regulatory proteins, the isolation of VnfA and AnfA with their sensor (GAF) domains is highly desirable In the ... participate in binding the cluster However, VnfA has additional three cysteine residues, namely at position 107, at position 134 in the GAF domain and at position 267 in the possible AAA+ domain Accordingly,...
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Báo cáo khoa học: Metal exchange in metallothioneins – a novel structurally significant Cd5 species in the alpha domain of human metallothionein 1a ppt
Ngày tải lên :
16/03/2014, 06:20
... original NMR numbering for two -domain mammalian metallothionein (2, and are assigned to the three divalent metal ions in the b domain) [10,11] The 11 cysteinyl sulfurs are labeled according to the ... identification of the binding site for the fifth Cd2+ ion in the Cd5a-rhMT 1a cluster The indirect 2D 1H–113Cd NMR approach exploits the J scalar coupling between the cysteine b protons and the coordinated ... Cd4 binding site Finally, the NMR data verify the coordination of the fifth Cd2+ ion by thiolate ligands within the cluster, and, more specifically, within the crevice site of the protein The biological...
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Báo cáo khoa học: Secondary structure assignment of mouse SOCS3 by NMR defines the domain boundaries and identifies an unstructured insertion in the SH2 domain pdf
Ngày tải lên :
16/03/2014, 14:20
... have the PEST motif within the SH2 domain, while SOCS1, -5 and -7 contain PEST motifs in the N-terminal domain The PEST sequence in the CIS SH2 domain is located eight residues downstream from the ... peptide, including the predicted SH2 domain alone (44–142) This implied that the SH2 domain itself was a cause of poor solubility, as was the SOCS box The sequences of the SOCS3 SH2 domain and the ... phosphatidylinositol (PtdIns) 3-kinase (N-terminal) SH2 domain (the SH2 domain with the highest sequence identity in the PDB) were therefore aligned and hydrophobic residue substitutions in SOCS3...
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Redeployment Plan for Spectrum Efficient Land Mobile Equipment in the Frequency Range 100-500 MHz pptx
Ngày tải lên :
31/03/2014, 18:20
... Equipment in the Frequency Range 100-500 MHz 1.0 Introduction In view of the limited availability of radio frequency spectrum in the land mobile bands between 100 and 500 MHz in large urban areas of the ... implementing a redeployment plan Certain segments of industry represented at the RABC, also provided input on a number of principles To the extent possible, the following principles are incorporated ... view of the limited availability of radio frequency spectrum in the land mobile bands between 100 and 500 MHz in large urban areas of the country, the Department of Industry initiated in April,...
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Wiley the IMS IP multimedia concepts and services in the mobile domain (2004) DDU
Ngày tải lên :
05/04/2014, 23:31
... Roaming between the IMS and the CS CN domain refers to inter -domain roaming between IMS and CS When a user is not registered or reachable in one domain a session can be routed to the other domain ... that both the CS CN domain and the IMS domain have their own services and cannot be used from another domain Some services are similar and available in both domains (e.g., Voice over IP in IMS and ... would bring modularity to the system, which is definitely a common interest in the industry Therefore, co-operation between the OMA and 3GPP will increase in the future It is very likely that the...
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jayanta mukhopadhyay - image and video processing in the compressed domain
Ngày tải lên :
05/06/2014, 12:04
... 6.1.1.1 Inserting Zeroes in DWT Coeffcients 6.1.1.2 DCT Domain Upsampling in 2D 6.1.1.3 Upsampling the DCT for Multilevel DWT 6.1.1.4 Wavelet Synthesis in the Compressed Domain 6.1.1.5 ... processing in the domain of alternative representation is referred here as processing in the compressed domain However, we should also be concerned about the efficiency of the processing algorithm in ... Processing in the domain of Alternative Representation Output Image in the Compressed Form Entropy Encoding Processed Output in Alternative Representation Figure 1.3: Processing in the domain of...
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Báo cáo hóa học: " Contribution of cysteine residues in the extracellular domain of the F protein of human respiratory syncytial virus to its function" docx
Ngày tải lên :
20/06/2014, 01:20
... glycosylation These findings are intriguing given that these three cysteine residues are absolutely conserved not only in the F proteins of other Pneumovirinae, but also in the F proteins of the Paramyxovirinae ... To determine the contribution of the individual cysteine residues in the extracellular domain (ECD) to its functions, a panel of mutations in which each cysteine residue in the ECD of the HRSV ... by an intervening cysteine-rich region A hydrophobic transmembrane domain is located near the C-terminus of the protein followed by a short (26 residues) cytoplasmic domain containing a single...
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Báo cáo hóa học: " Two-Stage Maximum Likelihood Estimation (TSMLE) for MT-CDMA Signals in the Indoor Environment" doc
Ngày tải lên :
22/06/2014, 23:20
... encountered as the number of tones increases This can be explained in the following way With the increase in the number of tones, the transmitted symbol duration gets increased in the time domain, which ... with the increase in the MT symbol duration) that results from the increase in the number of tones, the performance gain starts to saturate In the practical setting, in increasing the number of tones, ... considering the central fre- quency (q = Nt /2) for the analysis, the ICI, resulting from the reasonable increase in the number of tones, does not increase significantly In this case, the tones sitting...
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Báo cáo hóa học: " Blind Image Deblurring Driven by Nonlinear Processing in the Edge Domain" potx
Ngày tải lên :
23/06/2014, 01:20
... design the nonlinear processing in a transformed domain that allows a compact representation of the image edges the edge domain In this paper, we investigate the design of the nonlinear processing ... simplify the notation, in the following, we will drop the superscript (k) referring to the kth iteration of the deconvolution algorithm Blind Image Nonlinear Deblurring in the Edge Domain 2465 Nonlinearity ... − 1, the global maximum and the global minimum, respectively, in the Radon domain Therefore, for each point belonging to the direction βm and having index n, the nonlinearity (13) weights the...
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Báo cáo sinh học: " Recycling signals in the neural crest" pps
Ngày tải lên :
06/08/2014, 18:21
... reduction in the level of cyclin D in the mutant palatal mesenchyme, suggesting a role for TGF signaling in controlling the rate of cell division in the cranial neural crest In addition, the neural-crest-derived ... that BMPs influence the position and size of the domain rather than causing induction BMP involvement in neural crest development in birds differs in some respects from frog and zebrafish In birds, ... early neural crest induction [18] In the chick, Wnt6 is expressed in the nonneural ectoderm adjacent to the elevating neural folds, and blocking the canonical Wnt-catenin signaling pathway prevents...
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Báo cáo y học: " Overlapping enhancer/promoter and transcriptional termination signals in the lentiviral long terminal repeat" doc
Ngày tải lên :
13/08/2014, 09:20
... region in the SIN nlCre reporter construct as illustrated in Fig 3B U3C includes the two NFκB, three Sp1 binding sites, and the TATA Box U3B extends further upstream to the NF-AT and USF binding ... retains most of U3 sequence including the 5' NRE These constructs were transfected into TE26 cells and the TR activity was determined The results reveal that the length of the U3 insertion is inversely ... addition, induction of rtTATS binding to TRE did not influence the readthrough rate Therefore, the binding of a non-native transcriptional factor in the SIN LTR did not significantly improve the RNA...
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Direction of arrival estimation of wimedia UWB multipath signals in the presence of inband interferers
Ngày tải lên :
14/09/2015, 08:24
... is the time domain output of the ith array element at k th instant xi (k) l × column vector representing the time domain output of ith subarray Xi l × N matrix representing the frequency domain ... wide in frequency domain) for sending information In this case, the system occupies the whole allocated spectrum at any instant of time This throws in lot of challenges in processing of information, ... the same data in different carriers in the same symbol and in two adjacent symbols in the case of time domain spreading The data is transmitted in two carriers in the same symbol in DCM used for...
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Analysis and detection of human motion in time frequency domain
Ngày tải lên :
14/09/2015, 18:27
... [52,60,61] The most obvious and serious consequences of falling are injuries Common injuries due to receiving the main impact include fractures involving the hand, hip and spine, head and brain injuries ... decrease in the quality of life It is therefore in the interest of the community to recognize individuals at risk of falling and provide necessary interventions to minimize the chances of falling ... 2.1) In these activities, the information of interest is a combination of features that are well localized in time and frequency domains Since wavelet transform is capable of providing the time...
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Mechanisms of neurodegeneration and stem cell migration a study of molecular signals in the model of axotomy
Ngày tải lên :
16/09/2015, 17:12
... brain injury (Feuerstein et al., 1998) On the other hand, anti-inflammatory cytokines in the CNS maintain homeostasis and protect cell viability by inhibiting inflammatory responses (Feuerstein ... MCP-1, fractalkine and SDF-1 in the DMV … 122 1.6.3 Colocalization of lectin with CX3CR1 staining ……………………… 124 Involvement of the interactions of chemkines and chemokine receptors in the migration ... NO In mammals, the synthesis of NO is derived from the oxidation of the amino acid L-arginine catalyzed by nitric oxide synthase (NOS) in the presence of oxygen and nicotinamide adenine dinucleotide...
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