نتایج جستجو برای: single band algorithm sba

تعداد نتایج: 1668438  

Journal: :international journal of environmental research 2013
m. gholamalifard a. esmaili sari a. abkar b. naimi

remotely sensed imagery is proving to be a useful tool to estimate water depths in coastalzones. bathymetric algorithms attempt to isolate water attenuation and hence depth from other factors byusing different combinations of spectral bands. in this research, images of absolute bathymetry using twodifferent but related methods in a region in the southern caspian sea coasts has been produced. th...

Journal: :international journal of environmental research 0
m. gholamalifard department of environment, faculty of natural resources, tarbiat modares university, noor, mazandaran, iran a. esmaili sari department of environment, faculty of natural resources, tarbiat modares university, noor, mazandaran, iran a. abkar faculty of geodesy and geomatics eng., k. n. toosi university of technology, tehran, iran b. naimi faculty of geo-information science and earth observation (itc), enschede, the netherlands

remotely sensed imagery is proving to be a useful tool to estimate water depths in coastalzones. bathymetric algorithms attempt to isolate water attenuation and hence depth from other factors byusing different combinations of spectral bands. in this research, images of absolute bathymetry using twodifferent but related methods in a region in the southern caspian sea coasts has been produced. th...

Journal: :Journal of protein chemistry 1998
T Harrach K Eckert H R Maurer I Machleidt W Machleidt R Nuck

Two forms of an acidic bromelain proteinase isolated from crude bromelain, an extract from pineapple stem, were found by a two-step FPLC purification procedure. The basic main components were removed by cation exchange chromatography and the breakthrough fraction was further resolved by anion exchange chromatography into 15 protein fractions, only two of which, called SBA/a and SBA/b, were prot...

Journal: :Remote Sensing 2013
Mehdi Gholamalifard Tiit Kutser Abbas Esmaili-Sari Ali A. Abkar Babak Naimi

Remotely sensed imagery is proving to be a useful tool in estimating water depths in coastal zones. On the other hand, many coastal zone studies in the southern part of the Caspian Sea are only concerned with areas of shallow water and would benefit from easily updated bathymetric estimates. In this study, we tested three different methods for extracting bathymetry information from Landsat 5 da...

Journal: :The journal of physical chemistry. B 2006
Ying Li Zhaochi Feng Hongchuan Xin Fengtao Fan Jing Zhang Pieter C M M Magusin Emiel J M Hensen Rutger A van Santen Qihua Yang Can Li

We report the preparation of highly ordered mesoporous Fe-Al-SBA-15 with isolated extraframework Fe species under acidic conditions. The materials were characterized by means of UV resonance Raman spectroscopy, in conjunction with BET, XRD, TEM, UV-vis, H2-TPR, FT-IR, and 27Al MAS NMR spectroscopy. The addition of both Fe and Al to the synthesis gel of SBA-15 results in the formation of isolate...

Journal: :IEEE Trans. Communications 2003
Zygmunt J. Haas Jing Deng

To improve the channel throughput and the fairness of random access channels, we propose a new backoff algorithm, namely, Sensing Backoff Algorithm (SBA). A novel feature of the SBA scheme is the sensing mechanism, in which every node modifies its backoff interval according to the results of the sensed channel activities. In particular, every active node sensing the successful transmission decr...

1999
Sijing Zhang

This paper presents an eecient global synchronous band-width allocation (SBA) scheme for guaranteeing synchronous message deadlines in a timed token network (such as FDDI) where the timed token medium access control (MAC) protocol is used. A local SBA scheme allocates synchronous band-width to a node using only information available locally to that node while a global scheme uses network wide i...

2009
Qingshan Lu Zhongying Wang Jiangong Li Peiyu Wang Xialei Ye

The two-solvent method was employed to prepare ZnO encapsulated in mesoporous silica (ZnO/SBA-15). The prepared ZnO/SBA-15 samples have been studied by X-ray diffraction, transmission electron microscope, X-ray photoelectron spectroscopy, nitrogen adsorption-desorption isotherm, and photoluminescence spectroscopy. The ZnO/SBA-15 nanocomposite has the ordered hexagonal mesostructure of SBA-15. Z...

Journal: :Appl. Soft Comput. 2013
Fatemeh Ramezani Shahriar Lotfi

This paper proposes a new approach by combining the Evolutionary Algorithm (EA) and socio-political process based Imperialist Competitive Algorithm (ICA). This approach tries to capture several people involved in community development characteristic. People live in different type of communities: Monarchy, Republic, Autocracy and Multinational. Leadership styles are different in each community. ...

2007
Sara Solla

We study Schapire's Boosting Algorithm(SBA) for use in practice. SBA is analyzed in terms of its representation and its search. We show that the SBA representation is a piecewise tiling of the domain and that if the weak learner has low coverage ability, SBA's search may fail to boost or may give a sub-optimal solution. We present a rejection boosting algorithm that trades-oo exploration and ex...

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