Results 31 to 40 of about 3,721,403 (317)

On new strengthened Hardy-Hilbert's inequality

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1998
In this paper, a new inequality for the weight coefficient ω(q,n) in the form ω(q,n):=∑m=1∞1m+n(nm)1/q              1,1p+1q=1,n∈N) is proved. This is followed by a strengthened version ofthe Hardy-Hilbert inequality.
Bicheng Yang, Lokenath Debnath
doaj   +1 more source

A Head-Weighted Gap-Sensitive Correlation Coefficient [PDF]

open access: yesProceedings of the 38th International ACM SIGIR Conference on Research and Development in Information Retrieval, 2015
Information retrieval systems rank documents, and shared-task evaluations yield results that can be used to rank information retrieval systems. Comparing rankings in ways that can yield useful insights is thus an important capability. When making such comparisons, it is often useful to give greater weight to comparisons near the head of a ranked list ...
Ning Gao 0006, Douglas W. Oard
openaire   +1 more source

An improved downscaled sun-induced chlorophyll fluorescence (DSIF) product of GOME-2 dataset

open access: yesEuropean Journal of Remote Sensing, 2022
Sun-induced chlorophyll fluorescence (SIF) is a proxy for plant photosynthesis. However, available SIF products either have a low spatial resolution or are spatially discontinuous.
Yan Ma   +3 more
doaj   +1 more source

Model Predictive Stator Flux Control of Permanent Magnet Synchronous Motor Based on Vector Duty Ratio Modulation

open access: yesIEEE Access
To address the issues of extensive computation and laborious weight coefficient selection in model predictive torque control (MPTC) for permanent magnet synchronous motors (PMSM), an optimized model predictive flux control (MPFC) is proposed based on ...
Jing He   +3 more
doaj   +1 more source

Bounds on the Fourier coefficients of the weighted sum function [PDF]

open access: yesInformation Processing Letters, 2007
We estimate Fourier coefficients of a Boolean function which has recently been introduced in the study of read-once branching programs. Our bound implies that this function has an asymptotically ``flat'' Fourier spectrum and thus implies several lower bounds of its various complexity measures.
openaire   +5 more sources

Forecasting the Dialysis Burden in Japan: Validation‐Based Projections of Prevalence and Incidence Through 2050

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Japan has one of the highest dialysis prevalence rates worldwide and a shrinking, aging population. Whether dialysis burden has entered a sustained post‐peak phase or whether recent declines partly reflect pandemic‐related disruptions remains uncertain.
Hatice Şahin   +2 more
wiley   +1 more source

A Network Pharmacology Study of the Multi-Targeting Profile of an Antiarrhythmic Chinese Medicine Xin Su Ning

open access: yesFrontiers in Pharmacology, 2019
Xin Su Ning (XSN) is a China patented and certified traditional Chinese herbal medicine used to treat premature ventricular contractions (PVCs) since 2005.
Taiyi Wang   +10 more
doaj   +1 more source

Degradation mechanism of the von Willebrand factor A2 domain by nattokinase

open access: yesFEBS Letters, EarlyView.
Nattokinase, a natto‐derived protease, exhibits potent antithrombotic effects. This study demonstrates that nattokinase directly cleaves the von Willebrand factor (vWF) A2 domain in vitro. Unlike the native regulator ADAMTS13, nattokinase degrades folded vWF independently of shear stress.
Ryuichi Hyakumoto   +3 more
wiley   +1 more source

An Improved Crow Search Algorithm Based on Spiral Search Mechanism for Solving Numerical and Engineering Optimization Problems

open access: yesIEEE Access, 2020
The crow search algorithm (CSA) is a new intelligent optimization algorithm based on the behavior of the crow population, which has been proven to perform well. However, its simple search mechanism also leads to the algorithm's slow convergence speed and
Xiaoxia Han   +5 more
doaj   +1 more source

Generalizations of the clustering coefficient to weighted complex networks [PDF]

open access: yesPhysical Review E, 2007
4 pages, 1 table, 3 figures; revised ...
Saramaki, J.   +4 more
openaire   +3 more sources

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