Báo cáo toán học: "Preliminary measurement and simulation of the spatial distribution of the Morphogenetically Active Radiation (MAR) within an isolated tree canopy" docx
Báo cáo toán học: "Preliminary measurement and simulation of the spatial distribution of the Morphogenetically Active Radiation (MAR) within an isolated tree canopy" docx
... articlePreliminary measurement and simulation of the spatial distribution of the Morphogenetically Active Radiation (MAR) within an isolated tree canopyDidier Combesa,b,*, Hervé Sinoquetb and Claude ... gradient of the mean transmittance existed from the bottom to the top of the tree crown. Like in the PARdomain, the variability of the transmittance was moremarked at the top and the bottom than in ... the trunk position. Spatial distribution of MAR503Figure 2. Vertical variation of the mean and standard deviation of reflectance and trans-mittance of a leaf in PAR and Far Reddomains. Calculations...
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Báo cáo toán học: "Global alliances and independent domination in some classes of graphs" pdf
... Therefore β(T ) = n/2 and T is the corona of a tree of vertex set W .Let A be a γˆo(T )-set. Then A contains the set L of leaves of T and a dominating set of W since every vertex of V (T ) \ A must ... β(G) and i(G) in this class.Lemma 2 For every tree T of order n, β(T ) + 2i(T ) ≥ n + 1 and the bound is sharp.Proof Let T = (V, E) be a tree of order n ≥ 2, I a i(T )-set and F the set of edges of ... G[S] is a balanced tree. Moreover the sets L(v) have respective orders dS(v) and are all disjoint. Let J be anymaximal independent set of G[S] and q the number of components of the forest inducedby...
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Báo cáo toán học: " Structural, optical and magnetic studies of manganese-doped zinc oxide hierarchical microspheres by self-assembly of nanoparticles" docx
... of low and high frequencies are Raman active only, while the B1 modes are silent. Figure 5a shows the Raman spectra of the Zn1−xMnxO HMSs (x = 0, 0.02, 0.05, and 0.07). The sharpest and ... [22-26]. With the aim of providing further understanding of the optical nature of Mn-doped ZnO HMSs, UV-visible [vis] and PL spectra are used to study their optical characteristics, and the corresponding ... cm−1 can be assigned to the high frequency branch of the E2 mode of ZnO, which is the main Raman mode in the wurtzite crystal structure. It is related to the motion of oxygen atoms and sensitive...
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Báo cáo toán học: " Weak compactness and the Eisenfeld-Lakshmikantham measure of nonconvexity" potx
... denotes the closed and convex hull of A and H(C, D) is the Hausdorff-Pompeiu distance between the bounded subsets C and D of X. The E-L measure of nonconvexity was introduced in [1]. The followingproperties ... closed, and convex subsets of the bounded and convex set coC,then µ(Cn) = 0 (n ∈ N), and therefore C∞= ∅. Appealing again to the ˇSmulian theorem [6, Theorem V.6.2] we find that the convex ... nonempty and weakly compact subset of a Banachspace X, and let f : Y → Y be an isometry. Assume c ∈Yfis such thatf(c) = c. Then c ∈Y .Proof. We argue as in the proof of [5, Theorem...
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Báo cáo toán học: " Combined perception and control for timing in robotic music performances" ppt
... accelerate the motor and τis the zero-mean transition noise with ΣAcovariance. Here, the first coordinate of sτgive the amount of difference in the score position of the performer and the robot.For ... estimation and should give a high accuracy at the cost of very long latency.Briefly, the goal of inference in the HMM is computing the filtering and the (fixed-lag) smoothing distributions and the (fixed-lag) ... parties and jointly infers the tempo, and bar position, and the acoustic event. We will describe this quantities in the following section. The main goal of the system is to illustrate the feasibilityof...
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Báo cáo toán học: "Heterologous expression and optimization using experimental designs allowed highly efficient production of the PHY US417 phytase in Bacillus subtilis 168" ppt
... (Gunashree and Venkateswaran 2008), A. niger NCIM 563 (Soni and Khire 2007) and P. anomala (Kaur and Satyanarayana 2005). In addition to the illustration of the vital role of nitrogen sources for the ... in the ingredients of these medias like wheat bran and YE (Servi et al. 2008; Singh and Satyanarayana 2006; Vuolanto et al. 2001) and thus, external addition of phosphate could accentuate the ... 41.17±0.23 36.52 9 The contrast coefficient (E(Xi)) of each examined factor, the standard error (SE) of the concentration effect and the significant level (p-value) of the effect of each concentration...
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Báo cáo toán học: "Chemical composition and antibacterial activity of the essential oils from Launaea resedifolia L." docx
... continuation of our phytochemical and antibacterial studies of the Algerian Sahara medicinal plants [7–11], we report here the findings of our studies on the composition and antimicrobial activity of ... knowledge, there are no reports about the chemical content and biological effect of the essential oils of L. resedifolia. There no reports on the essential oils of the species of the genus launaea ... insecticide and cytotoxic activities [3]. The antimicrobial activities of coumarin constituents [4] and the neuropharmacological properties [5] have been investigated as well. To the best of the authors’...
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Báo cáo toán học: "Antioxidant, antimicrobial, and theoretical studies of the thiosemicarbazone derivative Schiff base 2-(2-imino-1-methylimidazolidin-4-ylidene)hydrazinecarbothioamide (IMHC)" potx
... (SBs) are important intermediates for the synthesis of some bioactive compounds such as ß-lactams [16–18], and employed as ligands for the complexation of metal ions [19]. SBs and their complexes ... HNNNHNHNSNH2NHHNNOThiosemicarbazideScheme 29. Pandeya SN, Sriram D, Nath G, De Clercq E (1999) Synthesis antibacterial antifungal and anti-HIV activities of Schiff and Mannich bases derived from isatin derivatives and N-[4-(4'-chlorophenyl)thiazol-2-yl]thiosemicarbazide. ... (1964) The quantitative analysis of drugs, vol 3. Chapman and Hall Ltd., Tokyo, pp 456–458 28. Duh PD, Tu YY, Yen GC (1999) Antioxidant activity of water extract of Harng Jyur (Chyrsanthemum...
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Báo cáo toán học: " Order-distributions and the Laplace-domain logarithmic operator" docx
... support of NASA Glenn Research Center and the Electrical and Computer Engineering Department of the University of Akron. The authors also want to express their greatappreciation for the valuable ... contributionsTH and CL worked together in the derivation of the mathematical results. Both authors read and approved the finalmanuscript.Competing interests The authors declare that they have no ... the fundamental theory of the Laplace-domain logarithmic operator, and related operators. It is motivated by the appearance of logarithmic operators in avariety of fractional-order systems and...
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Báo cáo toán học: " Joint DOA and multi-pitch estimation based on subspace techniques" docx
... array with M = 8 chan-nels. The simulated DOAs of the speech and the clarinetsignals are, respectively, θ1=-45 and 2=45° .The spectrogram of the mixed signal of the first channel isillustrated ... to the angles between the sub-spaces as explained in [33] and can hence be used as ameasure of the extent to which (29) holds for a candi-date fundamental frequ ency and DOA. The pair of fun-damental ... filtering the signal into itssubbands, where the DOA of the signal is uniquelymodeled by the narrow-band steering vector [20, Chap.9].Here, the ambiguities and the rank-defi ciency areavoided...
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