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Now showing items 21-30 of 33
Experimental validation of icing rate using rotational load
(Peer reviewed; Journal article; Tidsskriftsartikkel, 2016-04-16)
Icing load and icing rate are necessary feedback variables for an intelligent anti/de-icing systemtowork effectively
in harsh cold environment of high north. These parametersmay be measured by axial loadings or by rotational
loadings, as a function of current demand. However the former may not necessarily be dynamic, whereas the
later necessarily be rotational. Sufficiently at a fixed rpm, a ...
Sharp Hp-Lp type inequalities of weighted maximal operators of Vilenkin-Nörlund means and its applications
(Peer reviewed; Journal article; Tidsskriftsartikkel, 2016-10-01)
We prove and discuss some new Hp-Lp type inequalities of weighted maximal
operators of Vilenkin-Nörlund means with monotone coefficients. It is also proved
that these inequalities are the best possible in a special sense. We also apply these
results to prove strong summability for such Vilenkin-Nörlund means. As applications,
both some well-known and new results are pointed out.
Weighted Hardy type inequalities for supremum operators on the cones of monotone functions
(Peer reviewed; Journal article; Tidsskriftsartikkel, 2016-09-28)
The complete characterization of the weighted L<sup>p</sup>-L<sup>r</sup> inequalities of supremum operators on the cones of monotone functions for all 0 < p, r≤∞ is given.
Some new estimates of the ‘Jensen gap’
(Peer reviewed; Journal article; Tidsskriftsartikkel, 2016-02-01)
Modelled and observed sea-spray icing in Arctic-Norwegian waters
(Peer reviewed; Journal article; Tidsskriftsartikkel, 2016-11-15)
Hazardous marine icing is a major concern for ships operating in Arctic waters during freezing conditions. Sea spray generated by the interaction between a ship and ocean waves is the most important water source in these dangerous icing events. Although there exist several data sets with observations of ice accretion in conjunction with meteorological and oceanographic parameters, these data sets ...
Integrated Oxyfuel Power Plant with Improved CO2 Separation and Compression Technology for EOR application
(Peer reviewed; Journal article; Tidsskriftsartikkel, 2016-06-25)
An integrated advanced supercritical coal-fired oxyfuel power plant with a novel cryogenic
CO2 separation and compression technology for high purity CO2 to suit injection for
enhanced oil recovery purposes is investigated. The full process is modelled in Aspen Plus®
consisting of: an Air Separation Unit (ASU), an Advanced Supercritical Pulverised Fuel
(ASC PF) power plant with a bituminous coal ...
Some new Hardy-type inequalities in q-analysis
(Peer reviewed; Journal article; Tidsskriftsartikkel, 2016-09)
We derive necessary and sufficient conditions (of Muckenhoupt-Bradley type) for the validity of q -analogs of (r, p) -weighted Hardy-type inequalities for all possible positive values of the parameters r and p . We also point out some possibilities to further develop the theory of Hardy-type inequalities in this new direction.
Osmosis for non-electrolyte solvents in permeable periodic porous media
(Peer reviewed; Journal article; Tidsskriftsartikkel, 2016-08)
The paper gives a rigorous description, based on mathematical homogenization theory, for flows of solvents with not charged solute particles under osmotic pressure for periodic porous media permeable for solute particles. The effective Darcy type equations for the flow under osmotic pressure distributed within the porous media are derived. The effective Darcy law contains an additional flux term ...
Some sharp inequalities for integral operators with homogeneous kernel
(Peer reviewed; Journal article; Tidsskriftsartikkel, 2016-04-09)
One goal of this paper is to show that a big number of inequalities for functions in Lp(R+), p ≥ 1, proved from time to time in journal publications are particular cases of some known general results for integral operators with homogeneous kernels including, in particular, the statements on sharp constants. Some new results are also included, e.g. the similar general equivalence result is proved and ...
A note on the maximal operators of Vilenkin-Nörlund means with non-increasing coefficients
(Peer reviewed; Journal article; Tidsskriftsartikkel, 2016)
In [14] we investigated some Vilenkin—Nörlund means with non-increasing coefficients. In particular, it was proved that under some special conditions the maximal operators of such summabily methods are bounded from the Hardy space H1/(1+α) to the space weak-L1/(1+α), (0 < α ≦ 1). In this paper we construct a martingale in the space H1/(1+α), which satisfies the conditions considered in [14], and so ...