Technology & Engineering

n 1999, the Methods Research and Development Program of the U.S. Geological Survey National Water Quality Laboratory began the process of developing a method designed to identify and quantify...

The success of an environmental monitoring study using passive samplers, or any sampling method, begins in the office or laboratory. Regardless of the specific methods used, the general steps include...

This handbook describes the Long Term Resource Monitoring Program (LTRMP) General Wetland Vegetation Classification System developed as part of a multi-state and Federal partnership for the Upper...

Water-level modeling is used for multiple-well aquifer tests to reliably differentiate pumping responses from natural water-level changes in wells, or "environmental fluctuations." Synthetic water...

This manual provides the physical and mathematical concepts for selected models used to interpret deformation measurements near active faults and volcanic centers.Author: Peter F. CervelliPublisher:...

Understanding of the Earth's carbon cycle is an urgent societal need as well as a challenging intellectual problem. The impacts of human-caused changes on the global carbon cycle will be felt for...

The United States Nuclear Regulatory Commission (NRC) is using Business Process Redesign (BPR) techniques to redesign its materials licensing process. This effort is described in NUREG-1539, "...

Malware, also known as malicious code, refers to a program that is covertly inserted into another program with the intent to destroy data, run destructive or intrusive programs, or otherwise...

Internally enhanced tubes, like the micro-fin tube, are used by most manufacturers in the construction of evaporators and condensers for new unitary refrigeration and air-conditioning equipment. The...

This study demonstrates the performance improvement of an air-to-air roof top unit (RTU) achieved by optimizing an evaporator's refrigerant circuitry using evolutionary algorithms. The subject of...

This is the 2013 edition of energy price indices and discount factors for performing life-cycle cost analyses of energy and water conservation and renewable energy projects in federal facilities. It...

The latest version of the ANSI/NIST-ITL standard was published in November 2011 (AN-2011). In addition to specifying Record Types in traditional encoding, the standard includes the specification of...

As part of fire protection defense in depth, nuclear power plants and divided into separate fire areas by fire-rated structural barriers. Fire-rated penetration seals are installed to seal certain...

The Nuclear Regulatory Commission (NRC) published its license renewal rule, Title 10 of the Code of Federal Regulations (10 CFR) Part 54, on May 8, 1995, providing the requirements for renewal of...

The Department of Homeland Security's Performance and Accountability Reports provide information that enables the President, Congress and the public to assess the effectiveness of the Department's...

The objective of this report is to describe the regulatory processes that assures that any plant-specific licensing bases will provide reasonable assurance that the operation of nuclear power plants...

Computational fluid dynamics is used to predict the natural circulation flows between a simplified reactor vessel and the steam generator of a pressurized-water reactor (PWR) during a severe accident...

The U.S. Geological Survey (USGS), in cooperation with San Miguel County, New Mexico, conducted a study to assess publicly available information regarding the hydrologic resources of San Miguel...

Nutrient and sediment fluxes and changes in fluxes over time are key indicators that water resource managers can use to assess the progress being made in improving the structure and function of the...

Lake Maumelle, located in central Arkansas northwest of the cities of Little Rock and North Little Rock, is one of two principal drinking-water supplies for the Little Rock, and North Little Rock,...

Ninety percent of the drinking water for New York City passes through the Hillview Reservoir facility in the City of Yonkers, Westchester County, New York. In the past, several out from the side of...

Continental margins represent a potentially large, but largely unconstrained, flux of CO2 between the coastal ocean surface and atmosphere, with efforts to predict this flux generating estimates of...

The effect that land use may have on streamflow in the Carson River, and ultimately its impact on downstream users can be evaluated by simulating precipitation-runoff processes and estimating...

The U.S. Environmental Protection Agency (USEPA) approved a Total Maximum Daily Load (TMDL) for the Snake River-Hells Canyon reach ( ), which set seasonal (May through September) average and annual...

The Big Bear Valley, located in the San Bernardino Mountains of southern California, has increased in population in recent years. Most of the water supply for the area is pumped from the alluvial...

Version 1.0 (V1.0) of NIST Interagency Report (NISTIR) 7628, Guidelines for Smart Grid Cyber Security, is the Smart Grid Interoperability Panel-Cyber Security Working Group's (SGIP-CSWG's) report for...

Controlling interface clearances is the most cost effective method of enhancing turbomachinery performance. Seals control turbomachinery leakages, coolant flows and contribute to overall system...

This document provides guidance for establishing secure industrial control systems (ICS). These ICS, which include supervisory control and data acquisition (SCADA) systems, distributed control...

This document provides guidance on how to secure Industrial Control Systems (ICS), including Supervisory Control and Data Acquisition (SCADA) systems, Distributed Control Systems (DCS), and other...

President Clinton has called technology "the engine of economic growth." It is a key element in attaining one of the major goals enunciated by the President: reinvigorating American competitiveness...