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The snowblower problem
2011
Computational geometry
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We introduce the snowblower problem (SBP), a new optimization problem that is closely related to milling problems and to some material-handling problems. ...
We show that in general, the problem is NPcomplete, and we present polynomial-time approximation algorithms for removing snow under various assumptions about the operation of the snowblower. ...
We thank the referees and the partic- ...
doi:10.1016/j.comgeo.2011.03.003
fatcat:6cfwpx2gcrfbleccuv3wwqfzsa
The Snowblower Problem
[article]
2006
arXiv
pre-print
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We introduce the snowblower problem (SBP), a new optimization problem that is closely related to milling problems and to some material-handling problems. ...
We show that in general, the problem is NP-complete, and we present polynomial-time approximation algorithms for removing snow under various assumptions about the operation of the snowblower. ...
This experience crystallized into an algorithmic question we have called the Snowblower Problem (SBP): How does one optimally use a snowblower to clear a given polygonal region? ...
arXiv:cs/0603026v1
fatcat:erxpkpjnhbcmfempahktqdf7nq
E1415
1960
The American mathematical monthly
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Waterhouse, David Zeitlin, and the proposer.
Hence
A Snowblower Problem E 1415 [1960, 378]. ...
Proposed by Michael Herschorn, McGill University
It began snowing in the morning; at noon a snowblower set out to clear a street of constant width. ...
doi:10.2307/2309254
fatcat:l6se5shrkbbhdlhvzjczzxjndq
Letter: Dispute in Canberra
1974
Canadian Medical Association Journal
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I have made an effort to publicize these problems locally and have analysed snowblower injuries at a community hospital level. ...
Snowblower injuries To the Editor: I would like to enlist the help of physicians who have had to treat patients with snowblower injuries. ...
pmid:4823108
pmcid:PMC1947756
fatcat:dv5y7f6ivjafzkq2e7blwgortu
Page 87 of American Society of Civil Engineers. Collected Journals Vol. 114, Issue 2
[page]
1989
American Society of Civil Engineers. Collected Journals
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When the taxiway site was constructed, the weather was overcast and heating of the sawdust was not such a problem. ...
A Sprite, similar to a van with two cleated tracks, was used to try to mix the wood into the snow until the snowblower was repaired. ...
Page 378 of The American Mathematical Monthly Vol. 67, Issue 4
[page]
1960
The American Mathematical Monthly
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Proposed by Michael Herschorn, McGill University
It began snowing in the morning; at noon a snowblower set out to clear a street of constant width. ...
This department wel- comes problems believed to be new, and demanding no tools beyond those ordinarily furnished in the first two years of college mathematics. ...
Optical "snowblowing" of microparticles and cells in a microfluidc environment using Airy and parabolic wavepackets
2009
Optical Trapping and Optical Micromanipulation VI
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Intuitively, Airy and parabolic beams act as a form of micrometer-sized "snowblower" attracting microparticles or cells at the bottom of a sample chamber to blow them in an arc to another region of the ...
The year 2007 witnessed the experimental realization of extraordinary laser beams termed Airy and parabolic beams. ...
ACKNOWLEDGEMENTS We thank the UK EPSRC for funding. KD is a Royal SocietyWolfson Merit Award holder. ...
doi:10.1117/12.826193
fatcat:jwhimp5byjhi7gmqnsc4p2amam
Page 84 of Law Reporter Vol. 23, Issue 2
[page]
1980
Law Reporter
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The superior court expresses some surprise that the choice-of-law problems arising out of corporate ac- quisitions have received little attention, but it discerns two approaches. ...
SUCCESSOR CORPORATION LIABILITY: CHOICE OF LAW: SNOWBLOWER.
Litarowich v. Wiederkehr, 405 A.2d 874 (N.J. Super. 1979). ...
Problems for Solution: E1411-E1415
1960
The American mathematical monthly
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The Internet Archive has digitized a microfilm copy of this work. It may be possible to borrow a copy for reading.
Proposed by Michael Herschorn, McGill University
It began snowing in the morning; at noon a snowblower set out to clear a street of constant width. ...
This department wel- comes problems believed to be new, and demanding no tools beyond those ordinarily furnished in the first two years of college mathematics. ...
doi:10.2307/2308992
fatcat:ozae5565gfdy3jtwgs7wzidvqi
Letter: Contaminated chocolate balls
1974
Canadian Medical Association Journal
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I have made an effort to publicize these problems locally and have analysed snowblower injuries at a community hospital level. ...
Snowblower injuries To the Editor: I would like to enlist the help of physicians who have had to treat patients with snowblower injuries. ...
pmid:4823106
pmcid:PMC1947726
fatcat:5qjt4hrtfvchhe7swuzt3lz7fm
Page 365 of Law Reporter Vol. 35, Issue 10
[page]
1992
Law Reporter
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Gray, Law of Torts, § 28.32A,
35 LAW REPORTER 365
pp. 573.92 (2d ed. 1986) (best treatment we know of the scienter problem in strict products liability). ...
Plaintiff injured several of his left hand fingers in an attempt to clear out snow from an exhaust chute of a snowblower manufactured by defendant. ...
Mankiw's Ten Principles of Economics, Translated for the Uninitiated
2003
Annals of Improbable Research
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Unfortunately, life in this small town is not so simple; the town is located in a valley that is susceptible to severe air pollution problems. ...
First, the trades will still take place. For example, Family #1 and Family #3 will both be better off by $100 -$80 = $20 if Family #3 sells Family #1 its snowblower for $100. ...
doi:10.3142/107951403782226355
fatcat:mrn2d4z3ozbx5omz2mwbmr3zby
Page 235 of American Society of Civil Engineers. Collected Journals Vol. 15, Issue 4
[page]
2001
American Society of Civil Engineers. Collected Journals
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Because of the configuration of the front-mounted snowblower, a narrow neck between the impeller and the ejector tube is required to direct the chips into the airstream. ...
Hydraulic system problems are the main cause of reliability problems. Failure of pressure relief valves results in overpressurization of the system, leading to hose and pump shaft failures. ...
Page 13 of The Journal of the Operational Research Society Vol. 46, Issue 8
[page]
1995
The Journal of the Operational Research Society
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The snow is then removed by a snowblower which moves slowly along the row of snow and loads the snow into trucks moving alongside. ...
St Lawrence River 31% 0.121
Francon quarry 25% 0.181 Sewer chutes 23% 0.149 Surface sites 21% 0.506
THE SNOW DISPOSAL ASSIGNMENT PROBLEM
The snow disposal assignment problem (SDAP) is to find the best ...
Elementary Problems and Solutions
1960
The American mathematical monthly
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Waterhouse, David Zeitlin, and the proposer.
Hence
A Snowblower Problem E 1415 [1960, 378]. ...
problem somewhat different from the one given by the authors. ...
doi:10.1080/00029890.1960.11992042
fatcat:pr5ppyourrccjahqi6pedpi7fe
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