Results 31 to 40 of about 3,790,217 (289)

Self-Cleaning Cement-Based Building Materials

open access: yesBuildings, 2022
The modern rhythm of human life leads to well-known problems, which are air, water and soil pollution and climate warming. An increase in the power of industries and vehicles leads not only to atmospheric pollution by-products of incomplete fuel ...
Azariy Lapidus   +5 more
doaj   +1 more source

Critical Points Extraction from Building Façades by Analyzing Gradient Structure Tensor

open access: yesRemote Sensing, 2021
This paper proposes a building façade contouring method from LiDAR (Light Detection and Ranging) scans and photogrammetric point clouds. To this end, we calculate the confidence property at multiple scales for an individual point cloud to measure the ...
Dong Chen   +6 more
doaj   +1 more source

Runners Adapt Different Lower-Limb Movement Patterns With Respect to Different Speeds and Downhill Slopes

open access: yesFrontiers in Sports and Active Living, 2021
The aim of this study was to investigate the influence of slope and speed on lower-limb kinematics and energy cost of running. Six well-trained runners (VO2max 72 ± 6 mL·kg−1·min−1) were recruited for the study and performed (1) VO2max and energy cost ...
David Sundström   +2 more
doaj   +1 more source

L-Index in Joint Variables: Sum and Composition of an Entire Function with a Function With a Vanished Gradient

open access: yesFractal and Fractional, 2023
The composition H(z)=f(Φ(z)) is studied, where f is an entire function of a single complex variable and Φ is an entire function of n complex variables with a vanished gradient.
Andriy Bandura   +2 more
doaj   +1 more source

Talc, ovarian cancer, and recall bias in the sister study

open access: yesGlobal Epidemiology
O'Brien et al. [6] reported on the patterns and reliability of self-reported talc use in the Sister Study, a US-based prospective cohort study of women aged 35–74 who had a sister with a history of breast cancer.
Julie E. Goodman   +2 more
doaj   +1 more source

On applicability of mathematical scaling and normalization in applied problem solving

open access: yesAdvanced Engineering Research, 2018
Introduction. The applicability of mathematical scaling and normalization in solving various applied problems is analyzed. The best known formulas often used along the theoretical and experimental studies are considered.
A. I. Dolgov, D. V. Marshakov
doaj   +1 more source

Generalized Stochastic Gradient Learning [PDF]

open access: yes, 2005
We study the properties of generalized stochastic gradient (GSG) learning in forwardlooking models. We examine how the conditions for stability of standard stochastic gradient (SG) learning both di1er from and are related to E-stability, which governs ...
Evans, George W.   +2 more
core   +2 more sources

A Gradient-Based Particle-Bat Algorithm for Stochastic Configuration Network

open access: yesApplied Sciences, 2023
Stochastic configuration network (SCN) is a mathematical model of incremental generation under a supervision mechanism, which has universal approximation property and advantages in data modeling. However, the efficiency of SCN is affected by some network
Jingjing Liu, Yefeng Liu, Qichun Zhang
doaj   +1 more source

Passive Control of Silane Diffusion for Gradient Application of Surface Properties

open access: yesMicromachines, 2021
Liquid lithography represents a robust technique for fabricating three-dimensional (3D) microstructures on a two-dimensional template. Silanization of a surface is often a key step in the liquid lithography process and is used to alter the surface energy
Riley L. Howard   +5 more
doaj   +1 more source

Rigidity of asymptotically conical shrinking gradient Ricci solitons [PDF]

open access: yes, 2013
We show that if two gradient Ricci solitons are asymptotic along some end of each to the same regular cone, then the soliton metrics must be isometric on some neighborhoods of infinity of these ends. Our theorem imposes no restrictions on the behavior of
Brett Kotschwar   +2 more
core  

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