Results 51 to 60 of about 216,958 (318)

PRISM [PDF]

open access: yesACM Transactions on Intelligent Systems and Technology, 2017
Profession is an important social attribute of people. It plays a crucial role in commercial services such as personalized recommendation and targeted advertising. In practice, profession information is usually unavailable due to privacy and other reasons. In this article, we explore the task of identifying user professions according to their behaviors
Cunchao Tu   +3 more
openaire   +1 more source

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

open access: yesFEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka   +11 more
wiley   +1 more source

Modelo teórico para a previsão da resistência à compressão da alvenaria armada

open access: yesRevista IBRACON de Estruturas e Materiais
Neste trabalho faz-se a comparação entre diferentes modelos para se prever a resistência à compressão de prismas de alvenaria de blocos de concreto. Foram estudados experimentalmente quatro tipos diferentes de configurações de prismas, sendo cada um ...
R. F. Silva   +2 more
doaj   +1 more source

Case study of prototype and small-scale model behavior of clay blocks masonry under compression

open access: yesCase Studies in Construction Materials, 2021
The small-scale models have been used for decades to reproduce the strength and failure behaviour in Engineering problems. The main goal of this study was to analyse the scale factor between masonry components prototypes and models to preview the ...
Alisson Simonetti Milani   +5 more
doaj   +1 more source

Laser Resonator [PDF]

open access: yes, 1983
An optical resonator cavity configuration has a unitary mirror with oppositely directed convex and concave reflective surfaces disposed into one fold and concertedly reversing both ends of a beam propagating from a laser rod disposed between two total ...
Harper, L. L.
core   +1 more source

Resonance, multiple diffusion and critical tunneling for Gaussian lasers

open access: yes, 2013
We present a detailed study of the gaussian laser propagation through a dielectric system composed by two right angle prisms. We investigate the transition between the spatial coherence limit, which exhibits wave-like properties and for which the ...
Carvalho, Silvania A., De Leo, Stefano
core   +1 more source

Synthesis and conformations of [2.n]metacyclophan-1-ene epoxides and their conversion to [n.1]metacyclophanes [PDF]

open access: yes, 2017
A series of syn- and anti-[2.n]metacyclophan-1-enes have been prepared in good yields by McMurry cyclizations of 1,n-bis(5-tert-butyl-3-formyl-2-methoxyphenyl)alkanes.
Akther, Thamina   +7 more
core   +1 more source

Sequence determinants of RNA G‐quadruplex unfolding by Arg‐rich regions

open access: yesFEBS Letters, EarlyView.
We show that Arg‐rich peptides selectively unfold RNA G‐quadruplexes, but not RNA stem‐loops or DNA/RNA duplexes. This length‐dependent activity is inhibited by acidic residues and is conserved among SR and SR‐related proteins (SRSF1, SRSF3, SRSF9, U1‐70K, and U2AF1).
Naiduwadura Ivon Upekala De Silva   +10 more
wiley   +1 more source

Effect of bedding mortar with low strength and high entrained air content on the strain and failure mode of masonry prisms under compression [PDF]

open access: yesREM: International Engineering Journal
Brazilian standards regarding structural masonry does not consider the effect of bedding mortar properties on the strength and failure mode of masonry. Thus, the objective of this study was to evaluate the effect of bedding mortars with low strength and ...
Isabela Naia Talhacoli   +2 more
doaj   +1 more source

Holographic direct-vision spectroscope [PDF]

open access: yes, 1975
Spectroscope incorporates two prisms combined with holographic grating as dispersing element. This provides high dispersion with selective undeviated wavelength.
Franke, J. M.
core   +1 more source

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