نتایج جستجو برای: 1283 ppm

تعداد نتایج: 25024  

Journal: :Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 2006

Journal: :IEEE Transactions on Signal Processing 2008

Journal: :Journal of the Air & Waste Management Association 2015
Michael T Kleinman John D Bachman Howard J Feldman David McCabe J Jason West Arlene F Fiore

Connecting air quality and climate change Michael T. Kleinman, John D. Bachman, Howard J. Feldman, David McCabe, J. Jason West & Arlene F. Fiore To cite this article: Michael T. Kleinman, John D. Bachman, Howard J. Feldman, David McCabe, J. Jason West & Arlene F. Fiore (2015) Connecting air quality and climate change, Journal of the Air & Waste Management Association, 65:11, 1283-1291, DOI: 10....

2016
Jordi Fauquet Francesco Sofi Gemma López-Guimerà David Leiva Andrew Shalà Joaquim Puntí David Sánchez-Carracedo Alessandro Casini

Jordi Fauquet. Department of Psychobiology and Methodology of Health Sciences. Edifi ci B. Campus de la Universitat Autònoma de Barcelona. 08193 Bellaterra (Cerdanyola del Vallés). Barcelona, Spain e-mail: [email protected] Fauquet J, Sofi F, López-Guimerà G, Leiva D, Shalà A, Puntí J, Sánchez-Carracedo D, Casini A. Mediterranean diet adherence among Catalonian adolescents: socio-economic a...

2002
Milenko Drinic Darko Kirovski

With the emergence of software delivery platforms such as Microsoft’s .NET, code compression has become one of the core enabling technologies strongly affecting system performance. In this paper, we present PPMexe a set of compression mechanisms for executables that explores their syntax and semantics to achieve superior compression rates. The fundament of PPMexe is the generic paradigm of pred...

2002
Milenko Drinić Darko Kirovski

With the emergence of software delivery platforms such as Microsoft’s .NET, code compression has become one of the core enabling technologies strongly affecting system performance. In this paper, we present compression mechanisms for executables that explore their syntax and semantics to achieve superior compression rates. The fundament of our compression codec is the generic paradigm of predic...

Journal: :Comput. J. 1995
John G. Cleary William John Teahan Ian H. Witten

The PPM data compression scheme has set the performance standard in lossless compression of text throughout the past decade. PPM is a "nite-context statistical modelling technique that can be viewed as blending together several "xed-order context models to predict the next character in the input sequence. This paper gives a brief introduction to PPM, and describes a variant of the algorithm, ca...

2016
Joseph Connelly

— To attain a wider range of data rates in pulse position modulation (PPM) schemes with constrained pulse durations, the sender can repeat a PPM symbol multiple times, forming a super-symbol. In addition to the slot and symbol synchronization typically required for PPM, the receiver must also properly align the noisy super-symbols. We present a low-complexity approximation of the maximum-likeli...

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