Báo cáo toán học: "Preliminary measurement and simulation of the spatial distribution of the Morphogenetically Active Radiation (MAR) within an isolated tree canopy" docx

... article Preliminary measurement and simulation of the spatial distribution of the Morphogenetically Active Radiation (MAR) within an isolated tree canopy Didier Combes a,b,* , Hervé Sinoquet b and Claude ... gradient of the mean transmittance existed from the bottom to the top of the tree crown. Like in the PAR domain, the variability o...

Ngày tải lên: 08/08/2014, 14:22

... Therefore β(T ) = n/2 and T is the corona of a tree of vertex set W . Let A be a γ ˆo (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...

Ngày tải lên: 07/08/2014, 21:20

... of low and high frequencies are Raman active only, while the B 1 modes are silent. Figure 5a shows the Raman spectra of the Zn 1−x Mn x O 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 optica...

Ngày tải lên: 20/06/2014, 20:20

... 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 following properties ... closed, and convex subsets of the bounded and convex set coC, then µ(C n ) = 0 (n ∈ N), and therefore C ∞ = ∅. Appealing again to the ˇ Smulian theor...

Ngày tải lên: 20/06/2014, 20:20

... accelerate the motor and  τ is the zero-mean transition noise with Σ A covariance. Here, the first coordinate of s τ give 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...

Ngày tải lên: 20/06/2014, 20:20

... (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...

Ngày tải lên: 20/06/2014, 20:20

... 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 oi...

Ngày tải lên: 20/06/2014, 20:20

... (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 ... H N N NH N HN S NH 2 N H HN N O Thiosemicarbazide Scheme 2 9. Pandeya SN, Sriram D, Nath G, De Clercq E (1999) Synthesis antibacterial antifungal and anti-HIV activities of Sc...

Ngày tải lên: 20/06/2014, 20:20

... 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 great appreciation for the valuable ... contributions TH and CL worked together in the derivation of the mathematical results. Both authors read and approved the final manuscript. Competing interests The...

Ngày tải lên: 20/06/2014, 21:20

... array with M = 8 chan- nels. The simulated DOAs of the speech and the clarinet signals are, respectively, θ 1 =-45 and 2 =45° .The spectrogram of the mixed signal of the first channel is illustrated ... to the angles between the sub- spaces as explained in [33] and can hence be used as a measure of the extent to which (29) holds for a candi- date fundamental freq...

Ngày tải lên: 20/06/2014, 21:20