Spiral Arm Region and Analysis Methods
Analysis of the Active Region of Archimedean Spiral Antenna
... Archimedean Spiral Antenna (ASA), demonstrating the concept of frequency dependent active region and this determines the effective radiation area on the spiral ...the spiral antenna. In this ...
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Galaxy Zoo and sparcfire:constraints on spiral arm formation mechanisms from spiral arm number and pitch angles
... the arm winding GZ2 ques- tion rather than the arm number ...the spiral arms were tightly wound, w avg =1, and if everyone classified the arms as loose, then w avg = ...in arm number or bar ...
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Galaxy Zoo and SPARCFIRE: constraints on spiral arm formation mechanisms from spiral arm number and pitch angles
... with arm number, one naively would expect a positive correlation between arm number and disc mass, but we find a weak negative trend that galaxies with more massive discs and lower bulge-to-total ratios ...
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Spiral structure in barred galaxies. Observational constraints to spiral arm formation mechanisms
... of spiral arms in barred galaxies, is adopted in the is adopted in the theory of ’chaotic’ spirals (Patsis 2006 ; Romero-G´omez et ...the spiral corotates with the ...the spiral arms are based on ...
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CHARACTERIZING SPIRAL ARM and INTERARM STAR FORMATION
... by spiral arm ...either arm (271) or interarm (120) ...each region, we find that most physical properties (luminosity, size, metallicity, ionization parameter ) of H II regions are independent ...
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SpArcFiRe: Enhancing Spiral Galaxy Recognition using Arm Analysis and Random Forests
... among spiral galaxies, one sees adjectives such as flocculent, grand design, and ...of spiral arm morphologies is enormous: one can quantify the shape, length, width, brightness profiles, color and ...
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Arm and interarm abundance gradients in CALIFA spiral galaxies
... the spiral arm and the interarm ...spaxel-by-spaxel analysis leads to equiva- lent results to those obtained following the classical procedure of detecting H ii regions (see also ...
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Arm and interarm abundance gradients in CALIFA spiral galaxies
... the spiral arm and the interarm ...spaxel-by-spaxel analysis leads to equiva- lent results to those obtained following the classical procedure of detecting H ii regions (see also ...
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An Upper Limit on the Tightening of Galactic Spiral Arm Pitch Angle in Cosmic Time
... Measure Spiral Arm Pitch Angle We present the MATLAB code Spirality, a novel method for measuring spiral arm pitch angles by fitting galaxy images to spiral templates of known ...
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Galaxy Zoo: comparing the demographics of spiral arm number and a new method for correcting redshift bias
... the spiral arm question, we prefer to use a thresholding technique rather than using the weighted vote fractions (see Section ...both methods). Using the arm number question as an example, the ...
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Design of Dual Band Notch UWB Monopole Antenna Using Dual-Arm Spiral Resonator
... various methods have been proposed to reject these sub bands, and the most common method is to etch slot either on radiating patch [2, 3] or on feedline [4] and over ground plane ...
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Spiral arm pitch angle and galactic shear rate in N-body simulations of disc galaxies
... dividual spiral wave mode patterns in N-body simulations by isolating the spiral wave mode patterns from the system using the conventional spectrogram analysis ...the spiral phase of the mth ...
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Surgical Procedures in the DANTE Trial, A Randomized Study of Lung Cancer Early Detection with Spiral Computed Tomography: Comparative Analysis in the Screening and Control Arm
... AND METHODS A retrospective review was performed of all surgical cases and procedures carried out from March 2001 to Sep- tember 30, 2009, in the DANTE trial, a randomized study of lung cancer screening with LDCT ...
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Supplier Selection Of Upper Arm And Lower Arm Pantograph Jack Using AHP And TOPSIS Methods
... From the calculation and analysis process using Expert Choice 11 software, then proceed with the TOPSIS method, the final weight of each supplier is obtained. From this it can be concluded whether MTM is succeed ...
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Study on the Inductance Calculation Methods of Spiral Coils at High Frequency Conditions
... Keywords: Spiral coil, Inductance, High-frequency transient current, ANSYS Maxwell, ...deep analysis of modelling and simulation is conducted to calculate a fairly precise value of inductance of a coil at ...
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An Analytic-Themed, Spiral Curriculum for an. Introduction to Qualitative Research Methods Course
... analytic-themed, spiral curriculum for a university-level introduction to qualitative research methods ...research methods (participant observation, interviewing, ...data analysis—arguably the ...
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The NuSTAR Hard X-Ray Survey of the Norma Arm Region
... our analysis yielded a harder spectrum than that found by ...ground region we selected contains higher ghost ray contamination than the background chosen by B14; we consider our selection more appropriate, ...
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Towards a complete Cosmid Contig map of the Short Arm Pseudoautosomal Region
... fingerprint analysis of the clones containing DXYS99 suggested two slightly variant ...FISH analysis of interphase cells using clones containing DXYS99 from the two contigs should be ...
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Sustainability Assessment Methods for the Gulf Region
... Gulf region. The research used ‘Mixed Methods Sequential Exploratory Design’ as a research ...and methods were used to compare, validate, and triangulate results and to examine processes/experiences ...
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The convergence of subspace trust region methods
... [56] J.Z. Zhang, C.X. Xu, A class of indefinite dogleg path methods for unconstrained minimization, SIAM J. Optim. 9 (1999) 646–667. [57] Z.J. Shi, X.S. Zhang, J. Shen, Convergence analysis of adaptive ...
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