نتایج جستجو برای: dda

تعداد نتایج: 745  

Journal: :IJCCE 2011
D. J. Marino E. A. Castro L. Massolo A. Mueller O. Herbarth A. E. Ronco

In the present study, statistical methods based on multivariate analyses such as the Descriptive Discriminant Analysis (DDA) and Principal Component Analysis (PCA) were applied to determine relationships between particle sizes and the composition of the associated semi-volatile compounds, in addition to evaluating these observations in relation to the emission sources, study areas, sampling cam...

2017
Ruslan Mavlyutov Carlo Curino Boris Asipov Philippe Cudré-Mauroux

In this paper, we predict the rise of Dependency-Driven Analytics (DDA), a new class of data analytics designed to cope with growing volumes of unstructured data. DDA drastically reduces the cognitive burden of data analysis by systematically leveraging a compact dependency graph derived from the raw data. The computational cost associated with the analysis is also reduced substantially, as the...

Journal: :The European respiratory journal 2011
A W Musk M Knuiman M Hunter J Hui L J Palmer J Beilby M Divitini S Mulrennan A James

The aim of this study was to examine how objective measures related to lung function cluster in the general population and how the patterns relate to asthma and bronchitis as diagnosed by a doctor (DDA and DDB, respectively). A cross-sectional survey of an age-stratified random general population sample of 1,969 adults from the electoral register of Busselton (Australia) was performed in 2005-2...

2008
YUE SHEN B. T. DRAINE ERIC T. JOHNSON

We investigate the scattering and absorption of light by random ballistic aggregates of spherical monomers. We present a general measure for the porosity of an irregular particle. Three different classes of ballistic aggregates are considered, with different degrees of porosity. Scattering and absorption cross sections are calculated, using the discrete dipole approximation (DDA), for grains of...

2012
Sanaz Vahidinia Jeffrey N. Cuzzi Bruce Draine Essam Marouf

We have developed a numerical Regolith Radiative Transfer (RRT) model based on the Discrete-Dipole Approximation (DDA), which iteratively solves the exact wave equations for a granular target in response to an incident plane wave and mutual interactions between all component grains. We extend the traditional DDA approach in two ways: the DDA target is laterally replicated using periodic boundar...

Journal: :The Journal of biological chemistry 1977
A Sugino H M Goodman H L Heyneker J Shine H W Boyer N R Cozzarelli

The joining of duplex DNA at base-paired ends by bacteriophage T4 DNA ligase was confirmed using either a synthetic duplex decamer or restriction endonuclease fragments of ColE1 DNA as substrates. The reaction was not linearly dependent on enzyme concentration but increased markedly at high enzyme concentrations. Although T4 RNA ligase did not catalyze this blunt end joining, it makedly stimula...

Journal: :IEEE Transactions on Nuclear Science 2021

Dielectric disk accelerating (DDA) structures are being studied as an alternative to conventional disk-loaded copper structures. This paper investigates numerically efficient X-band DDA structure operating at a higher order mode of TM02-{\pi}. consists dielectric disks with irises arranged periodically in metallic enclosure. Through optimizations, the RF power loss on wall can be significantly ...

احمد جعفری سیدامیررضا بیابانکی

در این مقاله، ابتدا صحت تحلیل دینامیکی توسط روش آنالیز تغییر شکل ناپیوسته (DDA) در حالت سه بعدی با مقایسه نتایج بدست آمده از این روش با حل تحلیلی بررسی می شود. بدین منظور جابجایی یک بلوک بر روی یک سطح شیبدار که تحت یک بار دینامیکی قرار دارد مورد بررسی قرار می گیرد. نتایج بدست آمده توسط روش 3D DDA تطابق بسیار خوبی را با حل تحلیلی نشان می دهد. همچنین در این مقاله، تصحیح قیود تماس بلوکها در حالت ن...

Objective(s): Heparin-binding hemagglutinin (HBHA), a mycobacterial cell surface protein, mediates adhesion to nonphagocytic cells and the dissemination of Mycobacterium tuberculosis (M. tuberculosis) from the site of primary infection. Superior expression systems are required to obtain abundant M. tuberculosis proteins for the purpose of diagnosing M. tuberculosis infection or for the immuniza...

2014
Russell T. Warne

Reviews of statistical procedures (e.g., Bangert & Baumberger, 2005; Kieffer, Reese, & Thompson, 2001; Warne, Lazo, Ramos, & Ritter, 2012) show that one of the most common multivariate statistical methods in psychological research is multivariate analysis of variance (MANOVA). However, MANOVA and its associated procedures are often not properly understood, as demonstrated by the fact that few o...

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