Results 81 to 90 of about 787,641 (342)

Research on Micro/Nano Surface Flatness Evaluation Method Based on Improved Particle Swarm Optimization Algorithm

open access: yesFrontiers in Bioengineering and Biotechnology, 2021
Flatness error is an important factor for effective evaluation of surface quality. The existing flatness error evaluation methods mainly evaluate the flatness error of a small number of data points on the micro scale surface measured by CMM, which cannot
Han Shu   +3 more
doaj   +1 more source

IS THE WORLD FLAT? [PDF]

open access: yesCES Working Papers, 2010
Globalization became more and more prominent during the last decades. There is no way to argue that globalization led to more interconnected economies, facilitating the communication and the collaboration around the world. But where is this going? Doesglobalization mean uniformity or diversity?
Cristian Incaltarau   +1 more
openaire   +3 more sources

Epigenetic blind spots – the role of DNA methylation dynamics in stem cell‐based models of embryogenesis

open access: yesFEBS Letters, EarlyView.
Embryo‐like structures (stembryos) are an innovative tool, but they are hindered by experimental variability and limited developmental potential. DNA methylation is crucial for mammalian development, but its status in stembryo models is poorly characterized.
Sara Canil   +4 more
wiley   +1 more source

Improvement of Flatness for Nonlocal Phase Transitions [PDF]

open access: yesAmerican Journal of Mathematics, 2016
:We establish an improvement of flatness result for critical points of Ginzburg-Landau energies with long-range interactions. It applies in particular to solutions of $(-\Delta)^{s/2}u=u-u^3$ in $\Bbb{R}^n$ with $s\in(0,1)$.
S. Dipierro, J. Serra, E. Valdinoci
semanticscholar   +1 more source

Virtual Flux Control Methods for Grid-Forming Converters: A Four-Method Comparison

open access: yesApplied Sciences
The increasing penetration of renewable energy generation in recent years has introduced significant changes and challenges to modern power systems. One of the most critical challenges is the reduction in system inertia, which decreases grid stability ...
Juan Dolado Fernández   +5 more
doaj   +1 more source

Generating Functions for Coherent Intertwiners

open access: yes, 2012
We study generating functions for the scalar products of SU(2) coherent intertwiners, which can be interpreted as coherent spin network evaluations on a 2-vertex graph. We show that these generating functions are exactly summable for different choices of
Aquilanti V   +27 more
core   +1 more source

Homogeneity, Flatness and "Large" Extra Dimensions [PDF]

open access: yes, 2001
We consider a model in which the universe is the direct product of a (3+1)-dimensional Friedmann, Robertson-Walker (FRW) space and a compact hyperbolic manifold (CHM). Standard Model fields are confined to a point in the CHM (i.e. to a brane).
A. D. Linde   +25 more
core   +2 more sources

Potential therapeutic targeting of BKCa channels in glioblastoma treatment

open access: yesMolecular Oncology, EarlyView.
This review summarizes current insights into the role of BKCa and mitoBKCa channels in glioblastoma biology, their potential classification as oncochannels, and the emerging pharmacological strategies targeting these channels, emphasizing the translational challenges in developing BKCa‐directed therapies for glioblastoma treatment.
Kamila Maliszewska‐Olejniczak   +4 more
wiley   +1 more source

Division and Sealing Surfaces in Flow Energy Machines: An Analysis of Diverse Flatness Deviation Measurement Techniques

open access: yesApplied Sciences
This paper presents a comparative analysis of the results obtained from three different measuring machines using tactile measurement techniques. The influence of the number and method of collecting measurement points on the detection of shape errors of ...
Grzegorz Włażewski   +4 more
doaj   +1 more source

Investigating the Distribution of Flatness Measurements in Battery Manufacturing through Empirical Investigation and Statistical Theory

open access: yesMachines, 2023
The battery is an important part of the new energy electric vehicle, and the control of the flatness of its side plate/bottom plate is the key to quality improvement in mass production.
Hangyu Li, Sun Jin
doaj   +1 more source

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