نتایج جستجو برای: heterogeneous class

تعداد نتایج: 520460  

Journal: :iranian journal of radiation research 0
i. setilo medical physics department, faculty of health sciences, university of the free state, bloemfontein 9300, south africa f.c.p. du plessis medical physics department, faculty of health sciences, university of the free state, bloemfontein 9300, south africa

background:  radiochromic film is used for radiation dose measurement, xr-rv3 is used in fluoroscopy and ebt2 film in radiation therapy. the aim was to determine if the dosimetric properties of these two films are comparable in megavolt photon beams. materials and methods: comparison measurements included: calibration curves, heterogeneous phantom dose profiles, and nasopharynx dose distributio...

2009
Danny Dunlavy Sean Gilpin

Recent results in solving classification problems indicate that the use of ensembles classifier models often leads to improved performance over using single classifier models [1, 2, 3, 4]. In this talk, we discuss heterogeneous ensemble classifier models, where the member classifier models are not of the same model type. A discussion of the issues associated with creating such classifiers along...

Journal: :Informatica (Slovenia) 2009
Gregor Pavlin Michiel Kamermans Mihnea Scafes

The Dynamic Process Integration Framework (DPIF) is a service oriented approach which supports efficient creation of distributed systems for collaborative reasoning. The DPIF is relevant for an important class of contemporary applications requiring efficient and reliable processing of large quantities of heterogeneous information. An example of such an application is situation assessment in com...

2014
Serge Gaspers Neeldhara Misra Sebastian Ordyniak Stefan Szeider Stanislav Zivny

In this paper we extend the classical notion of strong and weak backdoor sets by allowing that different instantiations of the backdoor variables result in instances that belong to different base classes; the union of the base classes forms a heterogeneous base class. Backdoor sets to heterogeneous base classes can be much smaller than backdoor sets to homogeneous ones, hence they are much more...

Photocatalytic degradation of toxic organic compound in water, soil and air by semiconductor catalysts such as TiO2 and ZnO have received much attention over the last two decades. However, the low quantum yield, easy agglomeration and difficult post-separation of these inorganic catalysts limit their application for large-scale applications. Metal-organic frameworks (MOFs) are the latest class ...

Photocatalytic degradation of toxic organic compound in water, soil and air by semiconductor catalysts such as TiO2 and ZnO have received much attention over the last two decades. However, the low quantum yield, easy agglomeration and difficult post-separation of these inorganic catalysts limit their application for large-scale applications. Metal-organic frameworks (MOFs) are the latest class ...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 1972
W Jelinek J E Darnell

Heterogeneous nuclear RNA from HeLa cells contains double-stranded regions that arise by base pairing of complementary sequences that exist as parts of the same molecule (intramolecular base pairing). When denatured, the RNA sequences that form the double-stranded regions hybridize rapidly to HeLa cell DNA, suggesting that they are transcribed from reiterated sites in the genome. The messenger ...

2017
JUWEI ZHANG Juwei Zhang Na Li Yachuang Liu

For node deployment of heterogeneous sensor networks, based on different probability sensing models of heterogeneous nodes and an organic small molecule model, a ‘class-molecule’ sensing model of heterogeneous nodes is proposed. Combining it with DSmT data fusion model, the change of network coverage ratio after using the new sensing model and data fusion algorithm is studied. Furthermore, acco...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده علوم انسانی 1392

abstract the present study deals with a comparison between reactive and pre-emptive focus-on-form in terms of application and efficiency. it was conducted in an intermediate english class in shahroud. 15 male learners participated in this research and their age ranged from 18 to 25. a course book, new interchange 3, and a complementary book were used. every session the learners gave lectures o...

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