نتایج جستجو برای: l filter

تعداد نتایج: 734990  

Journal: :Investigative ophthalmology & visual science 1999
L M Bova A M Wood J F Jamie R J Truscott

PURPOSE To investigate UV filter synthesis in the human lens, in particular the biosynthetic origin of the second most abundant UV filter compound, 4-(2-amino-3-hydroxyphenyl)-4-oxobutanoic acid O-beta-D-glucoside. METHODS Human lenses were analyzed by high-performance liquid chromatography (HPLC) after separate incubation with 3H-tryptophan (3H-Trp), beta-benzoylacrylic acid, D,L-alpha-amino...

2015
Patrik Schwarzer Sven-Olaf Kuhn Sylvia Stracke Matthias Gründling Stephan Knigge Sixten Selleng Maximilian Helm Sigrun Friesecke Peter Abel Anders Kallner Matthias Nauck Astrid Petersmann

INTRODUCTION Ionized calcium (iCa) concentration is often used in critical care and measured using blood gas analyzers at the point of care. Controlling and adjusting regional citrate anticoagulation (RCA) for continuous renal replacement therapy (CRRT) involves measuring the iCa concentration in two samples: systemic with physiological iCa concentrations and post filter samples with very low i...

2005
Jérôme Darbon

This paper sheds new light on minimization of the total variation under the L-norm as data fidelity term (L+TV ) and its link with mathematical morphology. It is well known that morphological filters feature the property of being invariant with respect to any change of contrast. First, we show that minimization of L + TV yields a self-dual and contrast invariant filter. Then, we further constra...

Journal: :The Journal of pharmacology and experimental therapeutics 2005
Katrin Letschert Masaharu Komatsu Johanna Hummel-Eisenbeiss Dietrich Keppler

CCK-8 (L-aspartyl-L-tyrosyl-L-methionylglycyl-L-tryptophyl-L-methionyl-L-aspartyl-L-phenylalaninamide hydrogen sulfate ester), a derivative of the gastrointestinal peptide hormone cholecystokinin, is specifically taken up into human hepatocytes by the organic anion transporter OATP1B3 (OATP8). So far it was unknown which transporter mediates the excretion of CCK-8 into bile. Double-transfected ...

We study algebraic properties of categories of Merotopic, Nearness, and Filter Algebras. We show that the category of filter torsion free abelian groups is an epireflective subcategory of the category of filter abelian groups. The forgetful functor from the category of filter rings to filter monoids is essentially algebraic and the forgetful functor from the category of filter groups to the cat...

Journal: :Journal of environmental science and health. Part A, Toxic/hazardous substances & environmental engineering 2006
Mark Gerard Healy Michael Rodgers John Mulqueen

This laboratory study examined the use of various wood materials as a carbon source in horizontal flow filters to denitrify nitrate-nitrogen (NO3-N) from a synthetic wastewater. The filter materials were: sawdust (Pinus radiata), sawdust and soil, sawdust and sand, and medium-chip wood chippings and sand. Two influent concentrations of NO3-N, 200 mg L(-1) and 60 mg L(-1), loaded at 2.9 to 19.4 ...

Journal: :algebraic structures and their applications 0
rostam mohamadian shahid chamran university of ahvaz

in this article we introduce the concept of $z^circ$-filter on a topological space $x$. we study and investigate the behavior of $z^circ$-filters and compare them  with corresponding ideals, namely, $z^circ$-ideals of $c(x)$,  the ring of real-valued continuous functions on a completely regular hausdorff space $x$. it is observed that $x$ is a compact space if and only if every $z^circ$-filter ...

2015
Martin Welk

Multivariate median filters have been proposed as generalisations of the well-established median filter for grey-value images to multi-channel images. As multivariate median, most of the recent approaches use the L median, i.e. the minimiser of an objective function that is the sum of distances to all input points. Many properties of univariate median filters generalise to such a filter. Howeve...

2001
MORTEN NIELSEN

We show that asymptotic estimates for the growth in L(R)-norm of a certain subsequence of the basic wavelet packets associated with a finite filter can be obtained in terms of the spectral radius of a subdivision operator associated with the filter. We obtain lower bounds for this growth for p 2 using finite dimensional methods. We apply the method to get estimates for the wavelet packets assoc...

In this paper, we proposed a novel structure for designing all optical filter based on photonic crystal structure. In designing the proposed filter, we simply employed a point defect localized between input and output waveguides as wavelength selecting part of the filter. The initial form of this filter is capable of selecting optical waves at =1560 nm, the transmission efficiency of the filte...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید