Results 51 to 60 of about 2,159,370 (313)
A Review on Vibration Monitoring Techniques for Predictive Maintenance of Rotating Machinery
Machine failure in modern industry leads to lost production and reduced competitiveness. Maintenance costs represent between 15% and 60% of the manufacturing cost of the final product, and in heavy industry, these costs can be as high as 50% of the total
Marcelo Romanssini+3 more
doaj +1 more source
Flux Tubes in Effective Field Theory [PDF]
Quark-antiquark bound states are examined in the long-range strong-coupling limit with the minimal area law of lattice gauge theory assumed as input. Matrix element relations are established which in the effective theory obtain dynamical equations equivalent to a formulation of the flux-tube model.
arxiv +1 more source
UNLABELLED Firemaster® 550 (FM 550) is a commercial mixture of organophosphate and brominated flame retardants currently in use as a replacement for pentaBDE.
A. Phillips+5 more
semanticscholar +1 more source
Spreading of Kaolin and Sand Mixtures on a Horizontal Plane: Physical Experiments and SPH Numerical Modelling [PDF]
open4noThe investigation of the collapse of a well-known soil volume is a simple experiment that permits to make several interesting considerations. This paper, at first, presents a brief overview of some physical experiments led to understand how the ...
Brezzi, Lorenzo+3 more
core +1 more source
$Zb\bar{b}$ Loop Correction with Charge 2/3 Singlet Quarks [PDF]
We calculate the non-universal correction to the $Zb\bar{b}$ vertex in a simple extension of the Standard Model, where a charge $+2/3$ isosinglet quark is added to the standard spectrum. Comparison is made with other solutions to $R_b$ (and $R_c$) that demand particles lighter than $M_W$.
arxiv +1 more source
"I Saw You": searching for lost love via practices of reading, writing and responding [PDF]
How do emotions move and how do emotions move us? How are feelings and recognitions distributed socio-materially? Based on a multi-site ethnographic study of a romantic correspondance system, this article explores the themes of love, privacy, identity ...
Laurier, E., Whyte, A.
core +1 more source
Completely positive dynamics of correlated neutral kaons [PDF]
We study the behaviour of correlated neutral kaons produced in phi-meson decays under the hypothesis that the quantum mechanical time-evolution is completely positive. We show that planned experiments at phi-factories could give precise bounds on the phenomenological parameters of the model.
arxiv +1 more source
Direction of History Education for East-Asian Co-Prosperity : Paradigm Shift from Teaching History to Teaching Historiography [PDF]
departmental bulletin ...
550, Harada, Tomohito
core
The symmetrical input-interleaved high-gain DC-DC converters are suitable candidates to be used as the first stage in PV microinverters and as parallel-connected power optimizers.
Márcio Rodrigo Santos de Carvalho+3 more
doaj +1 more source
An important power quality issue is related to current harmonic components demanded by non-linear loads. A solution to mitigate this issue is to use hybrid power filters (HPFs), that apply low power active filters with passive filters.
Leonardo Rodrigues Limongi+3 more
doaj +1 more source