Results 261 to 270 of about 222,440 (307)
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Pairing Heaps with O(log log n) decrease Cost
Proceedings of the Twentieth Annual ACM-SIAM Symposium on Discrete Algorithms, 2009We give a variation of the pairing heaps for which the time bounds for all the operations match the lower bound proved by Fredman for a family of similar self-adjusting heaps. Namely, our heap structure requires $O(1)$ for insert and find-min, $O(\log{n})$ for delete-min, and $O(\log\log{n})$ for decrease-key and meld (all the bounds are in the ...
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Prebunching to Reduce Helicopter Logging Costs
Journal of Forestry, 1978Abstract This paper describes one effort to quantify rates and costs of helicopter production for thinning young-growth Douglas-fir (Pseudotsuga menziesii) in Oregon. The logs in a small sale (21 acres) were skidded to landings within the sale area by horses (prebunching), and then flown about 2,400 feet across a steep canyon by ...
Dennis P. Dykstra +2 more
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CLog: Low Cost Gigabit Full Packet Logging
Journal of Communications, 2006Creating high quality network trace files is a difficult task to accomplish on a limited budget. High network speeds may overburden an individual system running packet logging software such as tcpdump, resulting in trace files with missing information and making analysis difficult or incomplete.
Chad D. Mano +5 more
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Log-robust portfolio management after transaction costs
OR Spectrum, 2013zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Pae, Yuntaek, Sabbaghi, Navid
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The Use of Unit Cost Data in Estimating Logging Costs and Planning Logging Operations
Journal of Forestry, 1939Abstract The necessity for adapting logging methods to the requirements of selective cutting and to the test of low-cost production has raised many practical questions, such as which is cheaper, teams or tractors? What is the proper spacing for skid roads? Can such problems be determined short of actual trial?
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A Low-Cost, Data-Logging Salinity Sensor
OCEANS 2007, 2007In this paper, we present the design, development and testing of a novel low-cost, data-logging salinity sensor. The sensor was designed keeping size, cost and functionality in mind. The sensor can be submersed in water for up to two weeks (all electronics are completely sealed) while salinity is recorded onboard at user-defined intervals.
Thanh-Tung Pham +8 more
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Avoiding Two Errors in Estimating Logging Costs
Transactions of the ASAE, 1983ABSTRACT REGRESSION equations are often used to predict logging production rates and costs. However, using the midrange value of each independent variable as its average value in the regression produces an incorrect estimate of the dependent variable mean if the regression has nonlinear terms or if the independent variable has a nonsymmetrical (skewed)
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Predicting logging truck travel times and estimating costs of log haulage using models
Australian Forestry, 1987Summary The travel times of articulated logging trucks along varying classes of road in the Circular Head region of North West Tasmania were investigated. A road classification system was developed to relate the performance of such trucks to roads of different standards.
K. W. Groves +2 more
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EFFECTS OF SILVICULTURAL PRACTICES ON LOGGING COSTS
Australian Forestry, 1966SUMMARY A plea is made for more consideration by plantation managers of the effect of various practices on logging costs. It is pointed out that logging costs normally exceed growing costs and that some substantial savings in logging costs can be achieved by making heavier and fewer thinnings.
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