Results 101 to 110 of about 87,608 (299)

The Best Location for Speed Bump Installation Using Experimental Design Methodology

open access: yesPromet (Zagreb), 2013
Speed bumps, as traffic calming devices, have been extensively used to reduce traffic speed on local streets. This study represents a unique application of experimental design methodology where the effects of some controllable factors in determining the ...
Alireza Khademi   +4 more
doaj   +1 more source

Analogue Cosmological Particle Creation: Quantum Correlations in Expanding Bose Einstein Condensates

open access: yes, 2010
We investigate the structure of quantum correlations in an expanding Bose Einstein Condensate (BEC) through the analogue gravity framework. We consider both a 3+1 isotropically expanding BEC as well as the experimentally relevant case of an elongated ...
Angus Prain   +7 more
core   +1 more source

H ∞ and μ-synthesis Design of Quarter Car Active Suspension System [PDF]

open access: yes, 2020
To improve the street managing and passenger comfort of a vehicle, a suspension system is furnished. An active suspension device is considered to be better than the passive suspension device.
Jibril, Mustefa
core   +1 more source

Influence of speed bumps on braking distance

open access: yesIOP Conference Series: Materials Science and Engineering, 2019
Abstract This paper aims to dismiss the popular belief that speed bumps reduce the vehicle speeds or reduce the braking distance. In recent years, the implementation of speed bumps on public roads in Romania has increased. The correct understanding of the role of the speed bump has been misunderstood by the Romanian authorities who use ...
A Maftei   +3 more
openaire   +1 more source

EDNRB‐dependent endothelin signaling reduces proliferation and promotes proneural‐to‐mesenchymal transition in gliomas

open access: yesMolecular Oncology, EarlyView.
Glioma cells mainly express the endothelin receptor EDNRB, while EDNRA is restricted to a perivascular tumor subpopulation. Endothelin signaling reduces glioma cell proliferation while promoting migration and a proneural‐to‐mesenchymal transition associated with poor prognosis. This pathway activates Ca2+, K+, ERK, and STAT3 signalings and is regulated
Donovan Pineau   +36 more
wiley   +1 more source

Selection of dune shapes and velocities. Part 1: Dynamics of sand, wind and barchans

open access: yes, 2002
Almost fifty years of investigations of barchan dunes morphology and dynamics is reviewed, with emphasis on the physical understanding of these objects. The characteristics measured on the field (shape, size, velocity) and the physical problems they rise
Andreotti, Bruno   +2 more
core   +3 more sources

IMPDH inhibition enhances cytarabine efficacy in SAMHD1‐expressing leukaemia cells via guanine nucleotide depletion

open access: yesMolecular Oncology, EarlyView.
Cytarabine is a key therapy for acute myeloid leukaemia (AML), but its efficacy is limited by the dNTPase SAMHD1, which hydrolyses its active metabolite. Screening nucleotide biosynthesis inhibitors revealed that IMPDH inhibitors selectively sensitise SAMHD1‐proficient AML cells to cytarabine.
Miriam Yagüe‐Capilla   +9 more
wiley   +1 more source

The Effect of Rounding in Bump Foil Structure on the Dynamic Performance of Foil Journal Bearings

open access: yesTribology Online, 2019
The performance of air foil journal bearings is closely related to the stiffness of the bump foil. In this paper, the stiffness characteristics of bump foil having a rounding in the structure are investigated and compared with previous models.
Hongyang Hu, Ming Feng
doaj   +1 more source

A Simple Analytic Treatment of Linear Growth of Structure with Baryon Acoustic Oscillations

open access: yes, 2015
In linear perturbation theory, all information about the growth of structure is contained in the Green's function, or equivalently, transfer function.
Eisenstein, Daniel J., Slepian, Zachary
core   +1 more source

Keratin 19 as a prognostic marker and contributing factor of metastasis and chemoresistance in high‐grade serous ovarian cancer

open access: yesMolecular Oncology, EarlyView.
Keratin 19 (KRT19) is overexpressed in high‐grade serous ovarian cancer with high levels of Kallikrein‐related peptidases (KLK) 4–7 and is associated with poor survival. In vivo analyses demonstrate that elevated KRT19 increases peritoneal tumour burden.
Sophia Bielesch   +13 more
wiley   +1 more source

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