Simulations of collision times in gravity driven granular flow

We use simulations to investigate collision time distributions as one approaches the static limit of steady-state flow of dry granular matter. The collision times fall in a power-law distribution with an exponent dictated by whether the grains are ordered or disordered. Remarkably, the exponents have almost no dependence on dimension. We are also able to resolve a disagreement between simulation and experiments on the exponent of the collision time power-law distribution.Comment: 7 pages, 5 figure

Census 2000 Mail Response Rate: Nebraska Counties

Maps of Nebraska Counties\u27 response rate via mail to the Census 200

Analysis of Urban and Rural Data for Various Nebraska Geographies: 2000

Value-added analysis of urban/rural for various Nebraska geographies: 200

Why the 2020 Census is Important to Nebraska

Did you know that the distribution of political representation and taxpayer’s dollars is based upon how many residents the Census counts

Hispanic Population by County for Select States: 2000 and 2010

Hispanic Population by County for Select States (2000 and 2010

State and Local Population Trends (With a Focus on CPAR Population Projections to 2050)

This presentation features: Themes and Takeaways; Migration Moving on up ; Historic and current age structure with projection; Race/ethnicity trends; Special topics; and Summary

Census Data for Nebraska Unicameral Senate Districts for Post 2000 boundaries

Census Data for Nebraska Unicameral Senate Districts for Post 2000 boundarie

Rankings of Poverty Data by Race and Ethnicity for the 100 Most Populated Metro Areas at the Time of the Data Release: 2000 Census, 2006‐10 American Community Survey, and 2009‐13 American Community Survey

The long form of the 2000 Census collected income information from which poverty data are calculated. The long form was sent to a sample of households, with about 1 in 6 households across the United States receiving the long form. The 2000 Census had full (100%) nonresponse follow‐up with those households that did not return the long form questionnaire

Nebraska and Lancaster County\u27s Demographic Trends

Presented to the Kiwanis Club of Lincoln

Census Overview: Basics, ACS, and Estimates

This presentation features: Terminology & Definitions; Census Datafiles; ACS Data are Released Based Upon the Population of the Geographic Unit; Questionnaires & Concepts; How does CPAR typically analyze race/ethnicity?; Geography; FactFinder Address Search Page & Results; Geography vs. Data (A Duel); Relationship between Data/Datafiles and Geography; PUMA geography; The American Community Survey: What is it?; ACS Methodology in Brief; ACS New Subject Areas; Point Estimates, MOE and Confidence Intervals; Multi-year Aggregate Estimates: Advantages; ACS Sample Size Increase Began in 2011 and Continues!!; 2012 ACS Data to be released later in 2014; The 2009 ACS Nebraska “Double Whammy”; Population Estimates Program: Basics, Census Methodology in Brief, and Its Importance; Estimates Program Data; and Bottomline: Ask yourself these questions