57,837 research outputs found
Robinson, J. King-Gravestone P.1
No full textRobinson, J. King (Gravestone). At Fort Douglas, Utah. Fred. B. Rogers, Donor
On sequences of J. P. King-type operators
No full textThis survey is devoted to a series of investigations developed in the last fifteen years, starting from the introduction of a sequence of positive linear operators which modify the classical Bernstein operators in order to reproduce constant functions and x^2 on [0,1]. Nowadays, these operators are known as King operators, in honor of J. P. King who defined them, and they have been a source of inspiration for many scholars. In this paper we try to take stock of the situation and highlight the state of the art, hoping that this will be a useful tool for all people who intend to extend King’s approach to some new contents within Approximation Theory. In particular, we recall the main results concerning certain King-type modifications of two well known sequences of positive linear operators, the Bernstein operators and the Szász-Mirakyan operators
The Saffman-Taylor problem for an extremely shear-thinning fluid
No full textWe consider a steady flow driven by pushing a finger of gas into a highly shear-thinning power-law fluid, with exponent n, in a Hele-Shaw channel. We formulate the problem in terms of the streamfunction , which satisfies the p-Laplacian equation (with ), and investigate travelling wave solutions in the large-n (extreme shear-thinning) limit. We take a Legendre transform of the free-boundary problem for , which reduces it to a linear problem on a fixed domain. The solution to this problem is found by using matched asymptotic expansions and the resulting shape of the finger deduced (being, to leading order, a semi-infinite strip). The nonlinear problem for the streamfunction is also treated using matched asymptotic expansion in the physical plane. The finger-width selection problem is briefly discussed in terms of our results. <br/
Silver King Consolidated, Park City P.5
No full text28297 Silver King Consolidated Mine in Park City. J. Christensen Gallery--Courtesy (Mary)
A 2 h periodic variation in the low-mass X-ray binary Ser X-1
No full textSpectroscopy of the low-mass X-ray binary Ser X-1 using the Gran Telescopio Canarias have revealed a ?2 h periodic variability that is present in the three strongest emission lines. We tentatively interpret this variability as due to orbital motion, making it the first indication of the orbital period of Ser X-1. Together with the fact that the emission lines are remarkably narrow, but still resolved, we show that a main-sequence K dwarf together with a canonical 1.4 M? neutron star gives a good description of the system. In this scenario, the most likely place for the emission lines to arise is the accretion disc, instead of a localized region in the binary (such as the irradiated surface or the stream-impact point), and their narrowness is due instead to the low inclination (?10°) of Ser X-1
Advertisements P.8
No full text25508 Ad posters on display. Ray King--Photographer.Advertising includes; Purity Crackers, Felt Radio Company, Peerless Laundry, Fisher Beer, New Consumers Ice Company, Silver Bell Gas & Oil Station, J & M Union Transfer, Baker Motor Company, Utah Lumber Company, Sugar House Lumber and Hardware Company, Deseret Potato Chip Company, Granite Furniture Company, and a few others that aren\u27t quite legible
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