1,017 research outputs found
Poems / by Bassett Dickson.
No full textIllustration is a photograph.; Electronic reproduction. Canberra, A.C.T. : National Library of Australia, 2009.; Library's N copy inscribed by author
Andrew Dickson White papers microfilm reel 149, 1882-1917
No full textDigitized microfilm of correspondence and papers from the Andrew Dickson White collection.Segment 1: Volume one of the Autobiography of Andrew Dickson White, New York, The Century Co., 1917; copyright, 1904, 1905 by The Century Co., published March, 1905; 601 pages... Segment 2: Volume two of the Autobiography of Andrew Dickson White, including a list of publications by the author and an index, 606 pages ...Segment 3: This portion of the reel contains three letter registers kept by a succession of White's secretaries. The first volume lists letters sent from January 2, 1882 through June 29, 1883. Except for a few pages at the beginning and end, the right-hand pages record the letters of 1882, and the left·hand pages those of 1883. The second volume lists letters sent throughout 1884, and the third records letters sent from January 1, 1885 through August 14, 1885
On the exponents of APN power functions and Sidon sets, SUM-free sets, and Dickson Polynomials
No full textWe derive necessary conditions related to the notions, in additive combinatorics, of Sidon sets and sum-free sets, on those exponents d ∈ Z/(2n − 1)Z, which are such that F (x) = xd is an APN function over F2n (which is an important cryptographic property). We study to what extent these new conditions may speed up the search for new APN exponents d. We summarize all the necessary conditions that an exponent must satisfy for having a chance of being an APN, including the new conditions presented in this work. Next, we give results up to n = 48, providing the number of exponents satisfying all the conditions for a function to be APN. We also show a new connection between APN exponents and Dickson polynomials: F (x) = xd is APN if and only if the reciprocal polynomial of the Dickson polynomial of index d is an injective function from {y ∈ F∗2n; trn(y) = 0} to F2n \ {1}. This also leads to a new and simple connection between Reversed Dickson polynomials and reciprocals of Dickson polynomials in characteristic 2 (which generalizes to every characteristic thanks to a small modification): the squared Reversed Dickson polynomial of some index and the reciprocal of the Dickson polynomial of the same index are equal.Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Cyber Securit
MAI in conversation with Hope Dickson Leach
No full textConversation with filmmaker Hope Dickson Leach for issue 1 of MAI: Feminism and Visual Culture Journa
Dickson and Flora Reeder
No full textDickson and Flora Reeder will play in Jean Anouilh\u27s Episode in the Life of an Author for the Fiesta de Marza of Women of the West in Edrington Scott Theater. They are shown seated on a couch, she is holding a telephone, and Dickson is smoking and holding a book on lap. Fort Worth Star-Telegram Morning edition February 22, 1968.https://mavmatrix.uta.edu/specialcollections_startelegram1960s/4290/thumbnail.jp
Evaluation and proposal for a new PMC Pea Harvester Support System
No full textPMC Harvesters Ltd is an OEM (Original Equipment Manufacturer) for the pea and
bean market. Their primary product line is a self propelled harvester known as the
979 CT harvester. The 979 CT is of considerable proportions being 4m x 4m x 12m
in overall dimensions, six wheel drive and weighs 29,620 kg GVW (Gross Vehicle
Weight) when fully laden.
The aim of this work was to identify and outline possible solutions for the support
system (tyre or track and undercarriage), quantify the performance of each system,
produce a design and evaluation method to determine an optimal structural
specification and to produce a design recommendation for the application.
Analysis of the current 979 CT harvester wheel configuration highlighted many
constraining factors in tyre choice. The most pertinent of these was that the wheels
have a very limited operating space and following a study of the possible tyre options
it became apparent only two manufactures, Michelin and Trelleborg, could provide
tyres which met the vehicle parameters.
An experiment was conducted to evaluate the performance of the three chosen tyre
options. From the findings of these tests it was clear that the optimal tyre for the
PMC configuration was the Trelleborg Twin Radial tyre, operating at minimum road
inflation pressure (1.6 bar) as designated by Trelleborg.
When operating the harvester in its normal working environment the tyre pressure
should be set at minimum road inflation for in-field conditions with a DBD (Dry Bulk
Density) of > 1.3 g/cm3, as excess damage caused by operating above minimum field
operating pressure is superficial.
The use of low compaction equipment such as CTIS (Central Tyre Inflation System)
or tracks would not be beneficial to the PMC application. The track tested created a
hardened track pan, thus requiring more effort to rectify post harvest. A CTIS increases the consumption of diesel and offered no reduction in soil compaction
below plough depth as shown by the findings from operating the optimal tyre at
minimum field inflation pressure (1.2 bar).
The primary objective of this project was to offer solutions to reduce the effects of the
PMC harvester’s weight on its operating medium. The first natural step was to assess
the vehicles main structure in order to improve its performance to weight ratio. The
initial phase of this process was to validate the modelling and analyses techniques
used to assess the structure. This was done within a controlled test environment at
CU@S and from this work a factor of safety of 10% was designated to be applied to
all analysis in order to authenticate results and generate a “worst case” answer.
Revisions of the main chassis, main pivot and rear axle assemblies were created and
analysed. Test metrics were defined which represented operating patterns of the
harvester. The findings from these tests saw a 22.6% weight reduction, 43.1%
increase in life expectancy and 10.2% reduction in peak stress in the main chassis and
main pivot. Unlike the other two key assemblies, the rear axle was deemed fit for
purpose and would not benefit from any further design changes
Tax Externalities of Equity Mutual Funds
No full textInvestors holding mutual funds in taxable accounts face a classic externality. The after-tax return of their investment depends on the behavior of others. In particular, redemptions may force the mutual fund to sell some of its equity positions in order to pay off the liquidating investors. As a result, it may be forced to distribute taxable capital gains to its shareholders. On the other hand, new investors convey a positive externality upon existing investors by diluting the unrealized capital gain position of the fund. This paper's simulations show that these externalities are important determinants of the after-tax performance of equity mutual funds.
Emulation on the Shakespearean Stage
No full textThis review considers Emulation on the Shakespearean Stage by Vernon Guy Dickson
Abolala Soudavar. Reassessing Early Safavid Art and History. Thirty-Five Years after Dickson & Welch 1981
No full textThe volume consists of seven individual studies which are bound together by their strong reliance on The Houghton Shahnameh (Cambridge, Mass., 1981) by Martin Bernard Dickson and Stuart Cary Welch and the deference of the author to this two-volume work. While the author engages multiple problems in the respective chapters, his overarching concern is for “Dickson & Welch 1981”: a seminal volume which Soudavar believes to have been unjustly marginalised, ignored, and/or criticised by subsequent..
- …
