نتایج جستجو برای: stratified l filters

تعداد نتایج: 702939  

Journal: :international journal of occupational hygiene 0
ehsan farvaresh department of occupational health engineering, school of public health,tehran university of medical sciences, tehran, iran. farideh golbabaei department of occupational health engineering, school of public health,tehran university of medical sciences, tehran, iran. mansour ghiyaseddin department of occupational health engineering, school of public health,tehran university of medical sciences, tehran, iran. ali behdashti managing director of imen sarv co. keramatollah nouri-jaliani department of epidemiology & biostatics, school of public health, tehran university of medical sciences, tehran, iran. mehrdad karimi department of epidemiology & biostatics, school of public health, tehran university of medical sciences, tehran, iran.

the aim of this study was to evaluate the effect of evaporative media as gas turbine intake air cooling method on pressure drop of cartridge air filters. this study performed under the laboratory condition, using stainless steel test rig with specified dimensions to investigate the role of evaporative media in air cooling as well as its effects on new and used cartridge filters (as representati...

ژورنال: پژوهش های ریاضی 2022

In this paper, first, the concept of the fuzzy semi maximal filters in BL-algebras has been introduced, then several properties of  fuzzy semi maximal filters have been studied and  its relationship with other fuzzy filters including fuzzy  (positive)implicative  fuzzy filters and fuzzy fantastic  filters are investigated. In the following, using the level subsets  of fuzzy sets in a BL-algebra...

2004
J. P. Kerekes

An experiment was performed in Northern Maine recently to evaluate the use of Synthetic Aperture Radar (SAR) data in the measurement of soil moisture content in small area plots with varying surface cover and at various subsurface depths. Ground preparation efforts involved defining six contiguous 30 m x 30 m plots with three surface cover conditions: bare tilled soil, short grass and forest. F...

In this paper,  it is shown that the category of $L$-ordered fuzzifying convergence spaces contains the category of pretopological $L$-ordered fuzzifying convergence spaces as a bireflective subcategory and the latter contains the category of topological $L$-ordered fuzzifying convergence spaces as a bireflective subcategory. Also, it is proved that the category of $L$-ordered fuzzifying conver...

In this paper, we introduce the notions of prime state filters, obstinate state filters, and primary state filters in state residuated lattices and study some properties of them. Several characterizations of these state filters are given and the prime state filter theorem is proved. In addition, we investigate the relations between them.

Journal: :Journal of the Magnetics Society of Japan 1999

1995
Hexin Chen Ruikang Yang

A weighted median filter is a nonlinear digital filter consisting of a window of length 2N + 1 and a weight vector W -(W-N . . . . . Wo . . . . . WN). A root signal of a median type filter is a signal that is invariant to the filter. However, not all weighted median filters possess the convergence property. In this paper, we shall study the root structures and the convergence behavior of a subc...

Journal: :IEEE Trans. Signal Processing 1994
Constantine Kotropoulos Ioannis Pitas

Absfruct-The extension of single-channel nonlinear filters whose output is a linear combination of the order statistics of the input samples to the multichannel case is presented in this paper. The subordering principle of marginal ordering (41-ordering) is used for multivariate data ordering. Assuming a multichannel signal corrupted by additive white multivariate noise whose components are gen...

2008
M. Scherer U. Schallenberg H. Hagedorn W. Lehnert B. Romanov A. Zoeller

For Notch Filters, Rugate designs with a small index contrast and apodisation are well known in the literature. The required deposition of gradient index layers or so called flip flop structures is very complicated and difficult to manufacture. Higher order H/L stacks of coating materials with high index contrast result in very thick layer stacks. In our approach we replace the second refractiv...

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