A method for determining the quality of an examined weld joint comprising the steps of providing acoustical data from the examined weld joint, and performing a neural network operation on the acoustical data determine the quality of the examined weld joint produced by a friction weld process. The neural network may be trained by the steps of providing acoustical data and observable data from at least one test weld joint, and training the neural network based on the acoustical data and observable data to form a trained neural network so that the trained neural network is capable of determining the quality of a examined weld joint based on acoustical data from the examined weld joint. In addition, an apparatus having a housing, acoustical sensors mounted therein, and means for mounting the housing on a friction weld device so that the acoustical sensors do not contact the weld joint. The apparatus may sample the acoustical data necessary for the neural network to determine the quality of a weld joint.

None

Fact sheet describes the alternative fuel successes realized by two Minnesota state fleets.

This fact sheets provides a summary of geothermal potential, issues, and current development in Alaska. This fact sheet was developed as part of DOE's GeoPowering the West initiative, part of the Geothermal Technologies Program.

This fact sheets provides a summary of geothermal potential, issues, and current development in Oregon. This fact sheet was developed as part of DOE's GeoPowering the West initiative, part of the Geothermal Technologies Program.

This fact sheets provides a summary of geothermal potential, issues, and current development in Washington State. This fact sheet was developed as part of DOE's GeoPowering the West initiative, part of the Geothermal Technologies Program.

This publication is one in series of best practice guides for ''Laboratories for the 21st Century,'' a joint program of the U.S. Environmental Protection Agency and the U.S. Department of Energy Federal Energy Management Program. It is intended for those who plan to design and construct public and private-sector laboratory buildings. This guide describes how implementing low-pressure-drop design strategies established in the early stages of the design process will result in much lower energy costs through the system's life.

Fifth issue of a quarterly reporting to stakeholders on progress on the National Bioenergy Center Sugar Platform Integration Project.

Fact sheet describes the alternative fuel success realized by the New York State fleet.

This publication, one in a series of PV FAQs, addresses concentrating PV: what it is, how it works, the challenges it faces, recent breakthroughs, and its future direction.

A Renewables Portfolio Standard (RPS) is a requirement on electric utilities and other electric suppliers to supply a minimum percentage or amount of their load with eligible sources of renewable energy. The RPS has become increasingly popular because of its benefits and the public benefits of renewable energy. A well-designed state RPS can effectively deliver a renewable energy supply and associated benefits, at a low cost or even with consumer savings. This fact sheet provides an overview of an effective RPS design.

Small Wind Electric Systems: A New York Consumer's Guide provides consumers with information to help them determine whether a small wind electric system can provide all or a portion of the energy they need for their home or business based on their wind resource, energy needs, and their economics. Topics discussed in the guide include how to make a home more energy efficient, how to choose the correct turbine size, the parts of a wind electric system, how to determine whether enough wind resource exists, how to choose the best site for a turbine, how to connect a system to the utility grid, and whether it's possible to become independent of the utility grid using wind energy. In addition, the cover of the guide contains a regional wind resource map and a list of incentives and contacts for more information.