Institution
Oklahoma State University–Stillwater
Education•Stillwater, Oklahoma, United States•
About: Oklahoma State University–Stillwater is a education organization based out in Stillwater, Oklahoma, United States. It is known for research contribution in the topics: Population & Large Hadron Collider. The organization has 18267 authors who have published 36743 publications receiving 1107500 citations. The organization is also known as: Oklahoma State University & OKState.
Papers published on a yearly basis
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TL;DR: In this article, performance feedback has become popular in the school-based literature as a method to increase the treatment integrity of prescribed interventions, and the authors extracted and aggregated performance feedback from the literature.
Abstract: Performance feedback (PF) has become popular in the school-based literature as a method to increase the treatment integrity of prescribed interventions. The current study extracted and aggregated d...
218 citations
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TL;DR: In this paper, a comparison among commonly used reference evapotranspiration (ET) equations in the United States and the recently recommended ASCE standardized reference ET equation was made as part of the ASCE standardization effort.
Abstract: Comparison among commonly used reference evapotranspiration (ET) equations in the United States and the recently recommended ASCE standardized reference ET equation was made as part of the ASCE standardization effort. Analyses used hourly and daily weather data from 49 geographically diverse sites in the United States. Calculations were performed for both grass and alfalfa reference crops in a consistent manner, using weather data that passed integrity and quality assessment checks. Comparisons were made between reference ET computed by the various methods and the ASCE Penman-Monteith (PM) equation used for a daily calculation time step. In addition, calculations using hourly time steps and summed daily were compared with daily calculations for the same method as well as against the ASCE-PM method. Results showed that the ASCE standardized equation agreed best with the full form of ASCE-PM. The results provide a basis for objectively assessing the relative performance of reference ET equations in a variety of climates and support adoption of a standardized equation as recommended by the ASCE Task Committee.
218 citations
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TL;DR: Overall, this study offers a robust working hypothesis for vespertilionid relationships and provides a good starting point for new investigations into the evolutionary history of Vespertilionidae.
Abstract: Limited information from existing data sets and the tremendous amount of diversity in number and kind within the chiropteran family Vespertilionidae (about one-third of all bat species) have hampered efforts to provide adequate assessments of long-standing genealogic hypotheses (e.g., monophyly of the family and of the five subfamilies). We generated approximately 2.6 kilobase pairs of mitochondrial DNA (mtDNA) sequence ecompassing three adjacent genes (12S rRNA, tRNAVal, 16S rRNA) for 120 vespertilionids representing 110 species, 37 of 44 genera, and all subfamilies. We assessed monophyly of Vespertilionidae in initial analyses of 171 taxa including representatives of all bat families (except the monotypic Craseonycteridae), and assessed lower-level relationships by analysis of several truncated taxon sets. Phylogenetic analysis of ribosomal gene sequences provides well-supported resolution for vespertilionid relationships across taxonomic levels. Furthermore, the resolution is not heavily burdened by al...
217 citations
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TL;DR: In this article, the authors demonstrate the importance of streambank composition and stratigraphy in controlling seepage flow and quantify correlation of seepages flow/erosion with precipitation, stream stage and soil pore water pressure.
Abstract: Limited information exists on one of the mechanisms governing sediment input to streams: streambank erosion by ground water seepage. The objective of this research was to demonstrate the importance of streambank composition and stratigraphy in controlling seepage flow and to quantify correlation of seepage flow/erosion with precipitation, stream stage and soil pore water pressure. The streambank site was located in Northern Mississippi in the Goodwin Creek watershed. Soil samples from layers on the streambank face suggested less than an order of magnitude difference in vertical hydraulic conductivity (Ks) with depth, but differences between lateral Ks of a concretion layer and the vertical Ks of the underlying layers contributed to the propensity for lateral flow. Goodwin Creek seeps were not similar to other seeps reported in the literature, in that eroded sediment originated from layers underneath the primary seepage layer. Subsurface flow and sediment load, quantified using 50 cm wide collection pans, were dependent on the type of seep: intermittent low-flow (LF) seeps (flow rates typically less than 0·05 L min−1), persistent high-flow (HF) seeps (average flow rate of 0·39 L min−1) and buried seeps, which eroded unconsolidated bank material from previous bank failures. The timing of LF seeps correlated to river stage and precipitation. The HF seeps at Goodwin Creek began after rainfall events resulted in the adjacent streambank reaching near saturation (i.e. soil pore water pressures greater than −5 kPa). Seep discharge from HF seeps reached a maximum of 1·0 L min−1 and sediment concentrations commonly approached 100 g L−1. Buried seeps were intermittent but exhibited the most significant erosion rates (738 g min−1) and sediment concentrations (989 g L−1). In cases where perched water table conditions exist and persistent HF seeps occur, seepage erosion and bank collapse of streambank sediment may be significant. Copyright © 2007 John Wiley & Sons, Ltd.
217 citations
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TL;DR: In this paper, the effect of tool geometry and depth of cut on the deformation of a single crystal diamond tool was investigated and the results were in reasonably good agreement with the experimental and simulation results reported in the literature, and a material removal mechanism was proposed that would cover the range from conventional machining to grinding, to ultraprecision machining, and finally to the indentation-sliding as a cognate transition for material removal operation.
217 citations
Authors
Showing all 18403 results
Name | H-index | Papers | Citations |
---|---|---|---|
Gerald I. Shulman | 164 | 579 | 109520 |
James M. Tiedje | 150 | 688 | 102287 |
Robert J. Sternberg | 149 | 1066 | 89193 |
Josh Moss | 139 | 1019 | 89255 |
Brad Abbott | 137 | 1566 | 98604 |
Itsuo Nakano | 135 | 1539 | 97905 |
Luis M. Liz-Marzán | 132 | 616 | 61684 |
Flera Rizatdinova | 130 | 1242 | 89525 |
Bernd Stelzer | 129 | 1209 | 81931 |
Alexander Khanov | 129 | 1219 | 87089 |
Dugan O'Neil | 128 | 1000 | 80700 |
Michel Vetterli | 128 | 901 | 76064 |
Josu Cantero | 126 | 846 | 73616 |
Nicholas A. Kotov | 123 | 574 | 55210 |
Wei Chen | 122 | 1946 | 89460 |