Results 61 to 70 of about 70,649 (267)

Quantum lower bounds by entropy numbers

Journal of Complexity, 2007
We use entropy numbers in combination with the polynomial method to derive a new general lower bound for the n-th minimal error in the quantum setting of information-based complexity. As an application, we improve some lower bounds on quantum approximation of embeddings between finite dimensional L_p spaces and of Sobolev embeddings.
openaire   +3 more sources

Pseudorandom numbers and entropy conditions

Journal of Complexity, 2007
The authors investigate measures of pseudorandomness of finite sequences \((x_n)\) of real numbers. They extend the well-distribution measure introduced by \textit{C. Mauduit} and \textit{A. Sárközy} [Acta Arith. 82, No. 4, 365--377 (1997; Zbl 0886.11048)], which analyzes the behavior of a sequence \((x_n)\) along arithmetic progressions \((x_{ak+b})\),
Berkes, István, Philipp, Walter, Tichy, Robert F.   +2 more
openaire   +1 more source

Cell wall target fragment discovery using a low‐cost, minimal fragment library

FEBS Letters, EarlyView.
LoCoFrag100 is a fragment library made up of 100 different compounds. Similarity between the fragments is minimized and 10 different fragments are mixed into a single cocktail, which is soaked to protein crystals. These crystals are analysed by X‐ray crystallography, revealing the binding modes of the bound fragment ligands.
Kaizhou Yan, Mathew Stanley, Olawale Raimi, Andrew T. Ferenbach, Helge C Dorfmueller, Daan M. F. van Aalten   +5 more
wiley   +1 more source

Explicit Upper Bound for Entropy Numbers

Zeitschrift für Analysis und ihre Anwendungen, 2004
We give an explicit upper bound for the entropy numbers of the embedding I\colon W^{r,p}(Q^l)\to C(\overline{Q^l}) where Q^l=(-l,l)^m\subset \mathbb{R}^n , r\in\mathbb{N} ,
openaire   +2 more sources

Transferrin receptor 1‐mediated iron uptake supports thermogenic activation in human cervical‐derived adipocytes

FEBS Letters, EarlyView.
In this study, we found that human cervical‐derived adipocytes maintain intracellular iron level by regulating the expression of iron transport‐related proteins during adrenergic stimulation. Melanotransferrin is predicted to interact with transferrin receptor 1 based on in silico analysis.
Rahaf Alrifai, Mizuki Seo, Gyath Karadsheh, Fachrur Rizal Mahendra, Máté Á Demény, Ferenc Győry, János András Mótyán, László Fésüs, Endre Kristóf, Rini Arianti   +9 more
wiley   +1 more source

Numerical study on entropy minimization in pipes with helical airfoil and CuO nanoparticle integration

Open Engineering
In this study, minimizing entropy generation in a horizontal pipe is numerically investigated through two passive techniques: in the first mode, the helical wire inserts in the pipe were placed at three various ratios of pitch ratio.
Ali Hussein Hayder Mohammed, Mohammed Ali Jasim, Alshukri Mohammed J., Hussien Adnan M., Alsabery Ammar I.   +4 more
doaj   +1 more source

On the degree of compactness of embeddings between weighted modulation spaces

Journal of Function Spaces and Applications, 2008
The paper investigates the asymptotic behaviour of entropy and approximation numbers of compact embeddings between weighted modulation spaces.
Aicke Hinrichs, Iwona Piotrowska, Mariusz Piotrowski   +2 more
doaj   +1 more source

Numerical study of three-dimensional natural convection and entropy generation in a cubical cavity with partially active vertical walls

Case Studies in Thermal Engineering, 2017
Natural convection and entropy generation due to the heat transfer and fluid friction irreversibilities in a three-dimensional cubical cavity with partially heated and cooled vertical walls has been investigated numerically using the finite volume method.
Abdullah A.A.A Al-Rashed, Lioua Kolsi, Ahmed Kadhim Hussein, Walid Hassen, Mohamed Aichouni, Mohamed Naceur Borjini   +5 more
doaj   +1 more source

Entropy Numbers of General Diagonal Operators

Revista Matemática Complutense, 2005
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +3 more sources

Interpolation of $S$ -numbers and entropy numbers of operators

Banach Journal of Mathematical Analysis, 2019
The authors introduce the notion of \(\overset{\rightarrow}{s}\)-number sequence for operators acting between Banach couples. This generalizes the classical notion of \(s\)-numbers of operators which was introduced by A. Pietsch. The main aim is to study the following question under which conditions for Banach couples \(\overset{\rightarrow}{X}=(X_0 ...
Mastyło, Mieczysław, Szwedek, Radosław   +1 more
openaire   +3 more sources