properties of the discrete time fourier transform

... COMPUTATION OF THE INTERLEAVED FAST FOURIER TRANSFORM WITH MPI A Thesis Presented to The Graduate Faculty of The University of Akron In Partial Fulfillment of the Requirements for the Degree Master of ... other part calculates the Fourier transform of the odd index numbers and then finally merges them to get the Fourier transform for the whole sequence This will reduce the overall time to O (N log ... interleaved DFT’s of size N/2 The DFT is defined by the formula [21] Radix-2 divides the DFT into two equal parts The first part calculates the Fourier transform of the even index numbers The other part

Ngày tải lên: 30/10/2014, 20:11

... derives the Discrete Fourier Transform (DFT) as a projection of a length N signal x( ·) onto the set of N sampled complex sinusoids generated by the N roots of unity. • Fourier Theorems for the DFT ... understood the DFT and its inverse mathemati-cally, we go on to proving various Fourier Theorems, such as the “shift theorem,” the “convolution theorem,” and “Parseval’s theorem.” TheFourier theorems ... chapter derives various Fourier theorems for the case of the DFT Included are symmetry relations, the shift theorem, lution theorem, correlation theorem, power theorem, and theoremspertaining to

Ngày tải lên: 31/03/2014, 15:21

... the validity and reliability of this tool The items of this tool include ‘occupation of the head of household as the main source of income’, ‘education of the head of household’, ‘household’s ... analyze the data and evaluate con-struct validity Since in this approach the correlation between the items forms the bases of analysis, the ratio of sample size to the number of parameters in the ... the seven-factor model of the EFA model and had moderate fitness Conclusion The results of the present study indicated that the highest SB among the population of Poldasht, Iran belonged to the

Ngày tải lên: 31/10/2022, 03:34

... walls of a rocky church crypt [3], the energetic behavior and the microclimate of different hypogeous structures in the site of the "Sassi of Matera" [4, 5], and the thermal behavior of ... and the knowledge of the temperature coefficient of the material of which it is made A single measure allows for the determination of diffusivity, thermal conductivity, and specific heat of the ... possible to use other methods of determination of thermal conductance considering the geometric and structural variability of the wall section The structure of the typical wall of "Trulli"

Ngày tải lên: 05/09/2013, 14:58

... real time by surface plasmon resonance analysis, and the rate of phosphorylation of Ser16 by cAMP-dependent protein kinase.Comparison of the inhibitory properties of the natural cofactor with the ... changes of the pro-tomer resulting in a displacement of the cofactor bound at the active site by 2.6 A˚ (mean distance) in the direction of the iron and Glu286 which causes a loss of the stabilizing ... features of its hysteretic properties.Thus, the structures of the binary and ternary complexes of hPAH have provided a detailed picture of the protein contacts involved in the binding of biopterin cofactor

Ngày tải lên: 17/03/2014, 09:20

... development of hyphae and did decrease the infectivity of the organism, but it was not lethal. Thus, the rate of growth of the mutant at 30 °C was indistinguishable from the growth rate of the wild-type, ... in the region suggesting a molecular weight of  220 kDa (Fig. 3). These data suggest that the active TPS probably exists as a tetramer. Properties of the recombinant TPS The activity of the ... was compared to the amount of NAD + produced (nmol) in the coupled assay, as an indirect measure of the amount of trehalose-P synthesized. However, for most of the studies described here, the anthrone

Ngày tải lên: 17/03/2014, 10:20

... results The overall behaviour of the 2.05/ 1.92 lines of the g¼ 1.92 signal and the 2.065/1.89 lines of the g¼ 1.89 signal in the titrations in the presence of redox dyes was comparable to the titration ... At none of the pH values was any trace of the g¼ 1.96 signal observed The relative ratio of the other two signals was clearly dependent on the pH At pH 6.0 the g¼ 1.89 signal dominated the spectrum, ... reinforces the earlier inter-pretation that these two lines form the gzand the gxyregion of the g¼ 1.92 signal, whereas the gz¼ 2.078 and the trough at g¼ 1.887 form the gz and gxy lines of the g¼

Ngày tải lên: 17/03/2014, 10:20

... of these novel EPR signals to either the cofactor or the P-cluster has proven elusive due to the fact that both of these metal clusters present in the Fe-only nitrogenase are diamagnetic in the ... identical with the control spectrum in the absence of Rc1Mo Furthermore, with the exception of the classical S ¼ 3/2 signal of the MoFe protein at lower temperatures (< 12 K), no other signal was ... type of nitrogenase cluster [27–31] In view of the lack of analogous studies on the cofactor and the P-cluster of the MoFe protein from R capsulatus (Rc1Mo), as well as our intention to use the

Ngày tải lên: 18/03/2014, 01:20

... polarity of the environment of the fluorophore In the case of PfLDH, the signal change on binding to the active site was too small to be used as a reliable reporter of the formation of the binary ... represents the rate of the conformational change, k3H the hydride transfer and k4 the rate of the product-off step Hence, in these circumstances, the steady-state KM is expected to be smaller than the ... dehydrogenase activity One of the more striking sequence differences between PfLDH and other LDHs of the same fold is the presence of a lysine residue at position 102 The pres-ence of a positive charge

Ngày tải lên: 23/03/2014, 09:20

... catalytic mechanism of TreS, each of the r adioactive substrates was incubated with the enzyme in the presence of high concentrations of the unlabeled product, and the formation of radioactive product ... with the TreS purified from M. smeg- matis extracts. The enzymatic properties of recombinant TreS were identical to those of enzyme purified from the mycobacterial extract. Properties of the TreS ... productio n of maltose. The amount of maltose increased with increasing incubation times up to 10 h, and then slowly leveled off with longer incubation times (data not shown). The formation of maltose

Ngày tải lên: 23/03/2014, 13:20

... but did not find evidence of a change in the expression pattern of either isozyme during anoxia or of the expression of novel GST isozymes under anoxia However, the effect of anoxia exposure on liver ... change in the amount of GST protein present, a covalent modifi-cation of GST that alters its properties, or a change in the mixture of GST isozymes present in the organ to better suit the enzyme ... members of the bZIP family of transcription factors (Nrf2 and Maf G⁄ K) bind [10] The enzymes contain two binding sites within the active site, a G-site for the binding of GSH and a H-site for the

Ngày tải lên: 23/03/2014, 15:20

... 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 of the rhombic (x, y) axes The ... 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 Tyr32(B10) closer to the ... structures of methemo-globin establish that the solution structure of wild-type Hb more closely resembles the crystal structure of the recom-binant wild-type than the true wild-type met-hemoglobin The

Ngày tải lên: 23/03/2014, 17:22

... detected for the heme–rat HO-1 complex [14,24] The g-values of the alkaline forms of heme-HO complexes are presentedin Table 2 EPR of the nitrosyl heme–Syn HO-1 complex The EPR spectrum of the15NO ... Addition of ascorbate to the heme–Syn HO-1 complex commences the reaction, which is monitoredby the steady decrease of the Soret and 498 nm bands and the shift of the bandat 630 nm to the longer-wavelength ... exhibiting the bands of the remaining oxy complex The 340 nm-bandof NADPH decreases in proportion to the decrease of Soret band at 410 nm and to the increases of broadbandspreading 600–700 nm The latter

Ngày tải lên: 23/03/2014, 20:22

... kinetic properties of NR1, and as we have shown for CPR and P450 BM3 (23,24,28) the properties of the flavin binding domains of NR1 are likely to mimic the redox properties of the domains in full-length ... 1171 release of NADP + with concomitant displacement of the equilibrium distribution of enzyme species towards further reduction of the FAD (i.e. further transfer of hydride equivalents from NADPH to the ... indicates stabilization of the FMN semiqui- none, consistent with (a) a need to transfer electrons from the FAD/NADPH domain to the FMN domain, and (b) the thermodynamic properties of the FMN domain in

Ngày tải lên: 23/03/2014, 21:20

... orthologs in other organisms They are the two isoforms of the ADP⁄ ATP translocase [14–16], the carnitine ⁄ acylcarni-tine [17,18], citrate [13] and mitoferrin carriers [19] In the present study, ... Only five of these have been characterized, whereas the transport functions of the remainder cannot be assessed with certainty In the present study, we report the functional identification of two ... mitochondria Although most of these cofactors have to be imported from the cytosol into mitochondria, very little is known about the molecular basis of their transport across the mitochondrial membrane

Ngày tải lên: 29/03/2014, 08:20

... the proangiogenic properties of QK, suggesting that also in vivo this peptide resembles the full VEGF protein. These data open to new fields of investigation on the mechanisms of activation of ... Page 6 of 10 (page number not for citation purposes) Diagram of the kinetics of wound closure (A)Figure 3 Diagram of the kinetics of wound closure (A). VEGF 165 and QK accelerate the closure of ... assessed the properties of QK performing ex vivo experiments of vascular reactivity in WKY common carotid rings [12], and then we evalu- ated in vivo the role of this small peptide studying the ang-

Ngày tải lên: 18/06/2014, 15:20

... engineering the mole-cule to elongate its lifespan In the present paper we cir-cumvented this issue by increasing the times of application of the drug both in vitro and in vivo, or by reducing the times ... Conclusions The present study indicates the importance of RGDe-chiHCit in the selective inhibition of endothelial aVb3 integrin Such inhibition opens new fields of investiga-tion on the mechanisms of ... in serum The RP-HPLC profile of the peptide before the incubation showed a single peak at tr = 16.64 min, ascribable to the complete sequence by the MS spectrum (Figure 1C) After 24h of incuba-tion

Ngày tải lên: 18/06/2014, 16:20

... outstanding discrimination The best cut-off point of scores was identified, where the sum of the percentages of misclassified participants was lowest [52] We hypothesized that the DHI-N would demonstrate ... and the fourth factor included only three items Results from the EFA revealed that the items of the DHI-N loaded differently, than the suggested three sub-domains of the original version In further ... Background: The impact of dizziness on quality of life is often assessed by the Dizziness Handicap Inventory (DHI), which is used as a discriminate and evaluative measure The aim of the present

Ngày tải lên: 18/06/2014, 19:20

... years It was the mother who answered the questionnaire in 92.52% of the sample, and it was the father in 7.48% of the sample No parent in the patient group refused to participate in the study, ... heart disease, the severity of cardiac disorder was also reflected by the Cardiac Module [23,36,39] The current study presents the psychometric properties of the Hungarian version of the PedsQL™ ... Score, the mean is computed as the sum of the items divided by the number of items answered in the Emotional, Social, and School Functioning Subscales The sequential validation procedure of the

Ngày tải lên: 18/06/2014, 19:20

... capacity of children and adolescents with CP as a whole, according to the percep- tion of the parents/guardians. In the evaluation of the discriminant validity of the items the success rate in the ... representative of the child or of the patients with developmental disor- ders has the advantage of providing further information about the health conditions and well-being of the patients in addition to the ... results of the present study demonstrated that the instrument was capable of detecting differences among all the types of CP for the dis- ability index and for the arising domain. Most of the domains

Ngày tải lên: 18/06/2014, 19:20