نتایج جستجو برای: margin of safety

تعداد نتایج: 21186316  

2004
Balázs Kégl

In this paper we describe and analyze LOCMEDBOOST, an algorithm that boosts regressors with input dependent weights. The algorithm is a synthesis of median boosting [1] and localized boosting [2, 3, 4], and unifies the advantages of the two approaches. We prove boostingtype convergence of the algorithm and give clear conditions for the convergence of the robust training error, where robustness ...

2010
E. Forvi M. Soncini M. Bedoni F. Rizzo M. Casella C. O ’ Mahony

Microneedles, before being used for biomedical applications, have to satisfy biological and technical specifications, in particular they must guarantee a sufficient strength during exercise. Although studies on the mechanical characterization on single microneedles are reported in literature, microneedles must be arranged in matrices to be used in real biomedical applications. For these reasons...

C. Gheyratmand, M. Danesh, S. Gholizadeh,

The main aim of the present study is to optimize steel moment frames in the framework of performance-based design and to assess the seismic collapse capacity of the optimal structures. In the first phase of this study, four well-known metaheuristic algorithms are employed to achieve the optimization task. In the second phase, the seismic collapse safety of the obtained optimal designs is evalua...

B. Navidshad, F. Rezaei M. Mohammadrezaei M. Zarei, P. Esmaeilinasab R. Kachoei R. Valizadeh S. Jabbari S. Karamati

Since 1994 till today a few up to date have been made on the NRC (1994) recommendations for trace mineral requirements of broilers. The high prevalence of skeletal disorders in modern broilers could be a consequence of the uncoordinated growth rate and mineral nutrition. The commercial companies of broiler production often use a huge safety margin of trace minerals in feed formulation, which wi...

2008
Michael Dzierzawa Ulrich Eckern Stefan Schenk Peter Schwab

The frequency-dependent response of a one-dimensional fermion system is investigated using Current Density Functional Theory (CDFT) within the local approximation (LDA). DFT-LDA, and in particular CDFT-LDA, reproduces very well the dispersion of the collective excitations. Unsurprisingly, however, the approximation fails for details of the dynamic response for large wavevectors. In particular, ...

2006
Douglas J. Crawford-Brown David H. Moreau Michael J. Symons

HUEI-AN CHU: A Framework of Risk-Based Decision Making by Characterizing Variability and Uncertainty Probabilistically: Using Arsenic in Dinking Water as an Example (Under the direction of Dr. Douglas J. Crawford-Brown) Risk-based regulatory decisions generally apply a margin of safety meant to guard against underestimation of risk in the face of inter-subject variability and uncertainty. Since...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده علوم پایه 1391

food safety is considered as an important world concern. the detection of pathogen and toxic materials in food has an important role in public health care. in recent years, the applications of microbial biosensor have been developed as a new approach for toxicity control. luminescent microbial biosensor is an appropriate biological tool for protection of natural environment. this type of biosen...

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