87,276 research outputs found
Analyse des signaux multicomposante à modulation de fréquence linéaire par la transformation de Teager-Huang-Hough
Get PDFA novel detection approach of linear FM (LFM) signals, with single or multiple components, in the time-frequency plane of Teager-Huang (TH) transform is presented. The detection scheme that combines TH transform and Hough transform is referred to as Teager-Huang-Hough (THH) transform. The input signal is mapped into the time-frequency plane by using TH transform followed by the application of Hough transform to recognize time-frequency components. LFM components are detected and their parameters are estimated from peaks and their locations in the Hough space. Advantages of THH transform over Hough transform of Wigner-Ville distribution (WVD) are: 1) cross-terms free detection and estimation, and 2) good time and frequency resolutions. No assumptions are made about the number of components of the LFM signals and their models. THH transform is illustrated on multicomponent LFM signals in free and noisy environments and the results compared with WVD-Hough and pseudo-WVD-Hough transforms
Erratum to: Effect of moderate red wine intake on cardiac prognosis after recent acute myocardial infarction of subjects with Type 2 diabetes mellitus (Diabetic Medicine, (2006), 23, 9, (974-981), 10.1111/j.1464-5491.2006.01886.x)
No full textIn an article by Marfella et al, the author name C. Saron is incorrect and should be listed as C. Sardu. Therefore the correct author list is: R. Marfella, F. Cacciapuoti, M. Siniscalchi, F. C. Sasso, F. Marchese, F. Cinone, E. Musacchio, M. A. Marfella, L. Ruggiero, G. Chiorazzo, D. Liberti, G. Chiorazzo, G. F. Nicoletti, C. Sardu, F. D'Andrea, C. Ammendola, M. Verza and L. Coppola.In an article by Marfella et al, the author name C. Saron is incorrect and should be listed as C. Sardu. Therefore the correct author list is: R. Marfella, F. Cacciapuoti, M. Siniscalchi, F. C. Sasso, F. Marchese, F. Cinone, E. Musacchio, M. A. Marfella, L. Ruggiero, G. Chiorazzo, D. Liberti, G. Chiorazzo, G. F. Nicoletti, C. Sardu, F. D'Andrea, C. Ammendola, M. Verza and L. Coppola
Electronic health records and improved nursing management of chronic obstructive pulmonary disease [Corrigendum]
No full textLiu F, Zou Y, Huang Q, Zheng L, Wang W. Patient Preference and Adherence. 2015;9:495–500.On page 495, author affiliations and correspondence sections “The First Affiliated College of Medicine, Zhejiang University” should be “The First Affiliated Hospital, College of Medicine, Zhejiang University”.Read the original articl
Sous-facteurs de L(F∞) d'indice 4cos2π/n,n≥3
No full textLet Q be a factor of type II1, λ a number in the Jones discrete series {4cosπ/m:m≥3}, and {ei} the Jones projections associated with λ. Denote by A2n and A1n the finite-dimensional von Neumann algebras generated, respectively, by {1,e2,⋯,en} and {1,e1,⋯,en}, with the corresponding traces. The author shows that, for n sufficiently large, the index of the inclusion An=(Q⊗A2n)∗A2nA1n⊂(Q⊗A2n+1)∗A2n+1A1n+1=An+1 is equal to λ (here ∗ denotes the reduced, amalgamated free product of the algebras in question). Using the random matrix model of Voiculescu, he proves that if Q is the von Neumann algebra L(F∞) of the free group with infinitely many generators, then An is isomorphic to L(F∞).
The two facts together imply the existence, for any λ in the Jones discrete series, of an irreducible subfactor of L(F∞) of index λ. This constitutes the first example of a nonhyperfinite, non-Γ II1 factor such that its Jones invariant is fully computable (the existence of nonirreducible subfactors of L(F∞) for any index ≥4 is a simple consequence of known results)
A generalization of some Huang--Johnson semifields
No full textIn [H. Huang, N.L. Johnson: Semifield planes of order 82, Discrete Math., 80 (1990)], the authors exhibited seven sporadic semifields of order 26, with left nucleus F2 3 and center F2. Following the notation of that paper, these examples are referred as the Huang-Johnson semifields of type II, III, IV, V, V I, V II and V III. In [N. L. Johnson, V. Jha, M. Biliotti: Handbook of Finite Translation Planes, Pure and Applied Mathematics, Taylor Books, 2007], the question whether these semifields are contained in larger families, rather then sporadic, is posed. In this paper, we first prove that the Huang-Johnson semifield of type V I is isotopic to a cyclic semifield, whereas those of types V II and V III belong to infinite families recently constructed in [N.L. Johnson, G. Marino, O. Polverino, R. Trombetti: Semifields of order q6 with left nucleus F q 3 and center Fq, Finite Fields Appl., 14 (2008)] and [G.L. Ebert, G. Marino, O. Polverino, R. Trombetti: Infinite families of new semifields, Combinatorica, 6 (2009)]. Then, Huang-Johnson semifields of type II and III are extended to new infinite families of semifields of order q6, existing for every prime power q
Politica e amministrazione, tra etica, managerialità e responsabilità
No full textIl volume raccoglie le versioni, approfondite e rielaborate, delle relazioni discusse in occasione del convegno dal titolo “Politica e amministrazione. Etica, managerialità e responsabilità”, organizzato in onore di Gianfranco D’Alessio. L’oggetto di analisi, la dirigenza amministrativa, è discusso e analizzato, da un lato, in relazione ai principi costituzionali di imparzialità e di buon andamento della Pubblica Amministrazione e, dall’altro, al rapporto che questa instaura con gli organi politici. Il tema è affrontato con approcci variegati e da prospettive molteplici, secondo una impostazione che riflette la pluralità delle competenze e delle esperienze, professionali ed accademiche di ciascun autore.The volume collects the expanded and revised versions of the presentations discussed during the conference titled "Politics and Administration. Ethics, Managerialism, and Accountability," organized in honour of Gianfranco D’Alessio. The focus is on administrative leadership, discussed and analysed from two perspectives. Firstly, in relation to the constitutional principles of impartiality and good administration. Secondly, with reference to the relationship it establishes with political bodies. The topic is approached from various angles and multiple perspectives, reflecting the diversity of skills and experiences, both professional and academic, of each author
Flaviporus albus Q. L. Wei & H. F. Zheng & F. C. Huang & B. Liu 2023, sp. nov.
No full textFlaviporus albus Q.L. Wei & H.F. Zheng & F.C. Huang & B. Liu sp. nov. (Fig. 2.) MycoBank:—MB849629 Etymology:—“albus” refers to the white pileus of the specimen. Diagnosis:—Basidiomes resupinate to pileate. Pileus white to cream, with a covering of sparse white tomentum. Context slightly transparent to semi-transparent when fresh. Hyphal system pseudo-dimitic. Basidiospores broadly ellipsoid to subglobose, commonly with an oil drop, 2.1–2.6×1.7–2.3 μm. Ecology and distribution:—Known from Xidaming Mountain Nature Reserve, Chongzuo City, and Guangxi Zhuang Autonomous region. Specimens examined:— CHINA. Guangxi, Daxin county, Fulong Town, elev. 417 m, 31 May 2021, 107°26'41'' E 22°53'6' N, Zheng H.F. (GXU5765, holotype); elev. 439 m 31 May 2021, 107°26'1'' E 22°53'5'' N, Zheng H.F. (GXU5766). Description:— Basidiomes annual, resupinate to pileate, sessile, clustered, imbricate, up to 5× 3 cm and 4 mm thick, occasionally with radiating spines, watery, very brittle and waxy when fresh, shrinking and becoming very reduced and hard when dried. Pileus surface semi-transparent, covered with sparse whitish tomentum, white to cream, becoming straw-colored and hard when dried, up to 1 mm thick. Sterile margin distinct, white, thin, up to 0.1 mm wide, covered with dense whitish tomentum. Pore surface white when fresh, turning light yellow when dried. Pores small, 10–14 per mm, dentiform, round to angular, with irregular dissepiments. Tubes concolorous with pore surface, up to 1 mm thick. Context slightly transparent to semi-transparent, fragile when fresh, red brown to dark brown when dried, up to 0.1 mm thick, becoming hard. Hyphal system pseudo-dimitic; generative hyphae clamped, with thin to very thick walls, commonly clamped in thin-walled hyphae, rarely in thick-walled hyphae. Thin-walled hyphae frequently branched and simple septate, 2.7– 7.5 μm in diam, and thick-walled rarely branched with long aseptate segments resembling skeletal hyphae, hyaline, agglutinated and difficult to observe in dried specimens, 2.2–8.5 μm in diam. Gloeopleurous-like hyphae and inflated thin-walled hyphae observed in the trama. Skeletocystidia present in the trama, CB-, IKI-, fusoid to clavate to bulbous, rather thin-walled to thick-walled, 7.2–14.8 μm diam, spiny to lingulate with dense fine crystals at the apex. The crystals are present when Melzer’s reagent and Cotton Blue are used as mountants, but dissolve in KOH and Congo Red. Hyphal pegs present in the hymenium, cylindrical, composed of thin-walled hyphae, 16.8–51.8×11–23.4 μm. Basidioles ellipsoid to dolioform, thin-walled, 4.9–7.9×4.2–5.7 μm. Basidia short clavate to ellipsoid, dolioform, thin-walled, tetraspored, 6.2–10.0×4.4–5.8 μm. Basidiospores broadly ellipsoid to subglobose, hyaline, thick-walled, commonly with an oil drop, IKI-, CB-, 2.1–2.6×1.7–2.3 μm, L=2.4 μm, W=1.97 μm, Q= (1.04)1.09–1.39(1.47), Qm=1.22(n=60/2). Habitat:—Growing on rotten wood near a stream.Published as part of Wei, Qiu-Lu, Zheng, Hai-Fu, Shao, Yuan-Yuan, Rasheed, Usman, Huang, Hai-Si, Huang, Fu-Chang & Liu, Bin, 2023, Flaviporus albus (Steccherinaceae), a new species from southern China based on morphological and phylogenetic evidence, pp. 104-112 in Phytotaxa 612 (1) on pages 108-109, DOI: 10.11646/phytotaxa.612.1.10, http://zenodo.org/record/830852
Figure 3 from: Huang E-F, Yao G, Jiang R-H, Yang L-L, Wang X, Zhang Z-S, Zhang X-C (2021) Hoya pyrifolia (Apocynaceae), a new species from south-western Yunnan, China. PhytoKeys 174: 95-106. https://doi.org/10.3897/phytokeys.174.60137
No full textFigure 3 Hoya pyrifolia E.F. Huang A habit B leaf C inflorescence D bracteole E calyx lobes F corolla, adaxial side G corolla, abaxial side H corona I corona lobe J pollinarium K fruit L seed. Drawn by Y.J. Chen
Logarithmic variance profiles and the corresponding f-1 spectra of temperature fluctuations in turbulent Rayleigh-Bénard convection
No full textWe report experimental results for the temperature variance 2(z) and the corresponding frequency spectra P(f) in turbulent Rayleigh-Bénard convection (RBC) in a cylindrical sample of aspect ratioT= D/L = 1:00 (D = 1:12 m is the diameter and L = 1:12 m the height). The measurements were conducted in the Rayleigh-number range 1011 < Ra < 1:35 1014 and Pr ' 0:8. For Ra = 1:35x1014, 2(z) could be described well by a logarithmic dependence on the vertical position z in a range of z 1 < z < z 2 with z 1 ' 70 and z 2 = 0:1L. Here L=(2Nu) is the thickness of a thin thermal sublayer adjacent to the horizontal plate where the heat flux (denoted by the Nusselt number Nu) is carried mostly by thermal diffusion. In the log layer, we found that the temperature spectra had a significant frequency range over which P(f) f with close to 1. As Ra decreased, increased so that the log layer became thinner. At Ra = 2:05 1011, z 2 < z 1 and therefore there was no range for a log layer. Correspondingly, the temperature spectrum near the horizontal plate did not have the f1 scaling form either
Text-fig. 5. Extant Fraxinus fruits photographed by digital camera and X-ray microscopy. a: F. excelsior L. (Sect. Fraxinus); b: F. xanthoxyloides WALL. (Sect. Sciadanthus); c: F. malacophylla HEMSL. (Sect. Ornus). Red arrow refers to the air sac above seed, scale bars = 1 cm. in Fraxinus L. (Oleaceae) Fruits From The Early Oligocene Of Southwest China And Their Biogeographic Implications
No full textText-fig. 5. Extant Fraxinus fruits photographed by digital camera and X-ray microscopy. a: F. excelsior L. (Sect. Fraxinus); b: F. xanthoxyloides WALL. (Sect. Sciadanthus); c: F. malacophylla HEMSL. (Sect. Ornus). Red arrow refers to the air sac above seed, scale bars = 1 cm.Published as part of Wu, Meng-Xiao, Huang, Jian, Su, Tao, Zhou, Zhe-Kun & Xing, Yao-Wu, 2021, Fraxinus L. (Oleaceae) Fruits From The Early Oligocene Of Southwest China And Their Biogeographic Implications, pp. 287-298 in Fossil Imprint 77 (2) on page 291, DOI: 10.37520/fi.2021.021, http://zenodo.org/record/716760
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