Nitrate, Arsenic and Selenium Concentrations in The Pecos Valley Aquifer, West Texas, USA (open access)

Nitrate, Arsenic and Selenium Concentrations in The Pecos Valley Aquifer, West Texas, USA

This article discusses nitrate, arsenic, and selenium concentrations in the Pecos Valley Aquifer in west Texas in the context of local geology and land use.
Date: November 12, 2009
Creator: Hudak, Paul F.
Object Type: Article
System: The UNT Digital Library
Spatio-Temporal Distribution of Malaria in Yunnan Province, China (open access)

Spatio-Temporal Distribution of Malaria in Yunnan Province, China

This article describes the use of GIS techniques to conduct temporal and spatial analyses of both P. vivax and P. falciparum malaria to understand the trend and dynamics of transmission, to identify risk periods and areas, and to determine environmental factors associated with increased risk of malaria.
Date: September 1, 2009
Creator: Hui, Feng-Ming; Xu, Bing; Chen, Zhang-Wei; Cheng, Xiao; Liang, Lu; Huang, Hua-Bing et al.
Object Type: Article
System: The UNT Digital Library
An Updating System for the Gridded Population Database of China Based on Remote Sensing, GIS and Spatial Database Technologies (open access)

An Updating System for the Gridded Population Database of China Based on Remote Sensing, GIS and Spatial Database Technologies

Describes the development of a Spatial Population Updating System (SPUS) for updating the gridded population database of China based on remote sensing, GIS and spatial database technologies, with a spatial resolution of 1 km by 1 km.
Date: February 20, 2009
Creator: Yang, Xiaohuan; Huang, Yaohuan; Dong, Pinliang; Jiang, Dong & Liu, Honghui
Object Type: Article
System: The UNT Digital Library
Instrument, System and Method for Automated Low Cost Atmospheric Measurements (open access)

Instrument, System and Method for Automated Low Cost Atmospheric Measurements

Patent relating to an instrument, system and method for automated low cost atmospheric measurements.
Date: May 11, 2006
Creator: Acevedo, Miguel F.; Waller, William T. & Nebgen, Gilbert B.
Object Type: Patent
System: The UNT Digital Library