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Testing Strategies for Model-Based Development - Mats P Heimdahl

Testing Strategies for Model-Based Development - Mats P Heimdahl

This report presents an approach for testing artifacts generated in a model-based development process. This approach divides the traditional testing process into two parts: requirements-based testing (validation testing) which determines whether the model implements the high-level requirements and model-based testing (conformance testing) which determines whether the code generated from a model is behaviorally equivalent to the model. The goals of the two processes differ significantly and this report..

DKK 234.00
1

Pti-Apwa Equipment Management Information System, Computer Program Testing Instructions

Pti-Apwa Equipment Management Information System, Computer Program Testing Instructions

These Equipment Management Information System: Testing Instructions are for use in conjunction with the Equipment Management Information System Implementation Handbook. (See Task 1 of the Implementation Handbook). These instructions are for use in benchmark testing the Equipment Management System computer programs as compiled in the receiving jurisdiction and in determining that the job streams have been properly developed. These Testing Instructions document the computer type containing the Equipment..

DKK 210.95
1

Lessons Learned from the Emu Fire and How It Impacts Cxp Suit Element Development and Testing - Jonathan Metts

Lessons Learned from the Emu Fire and How It Impacts Cxp Suit Element Development and Testing - Jonathan Metts

During testing a Space Shuttle Extravehicular Mobility Unit (EMU) pressure garment and life-support backpack was destroyed in a flash fire in the Johnson Space Center's Crew systems laboratory. This slide presentation reviews the accident, probable causes, the lessons learned and the effect this has on the testing and the environment for testing of the Space Suit for the Constellation Program.

DKK 234.00
1

Environmental Testing of the Next Pm1 Ion Engine - John S Snyder

Environmental Testing of the Next Pm1 Ion Engine - John S Snyder

The NEXT propulsion system is an advanced ion propulsion system presently under development that is oriented towards robotic exploration of the solar system using solar electric power. The Prototype Model engine PM1 was subjected to qualification-level environmental testing to demonstrate compatibility with environments representative of anticipated mission requirements. Random vibration testing, conducted with the thruster mated to the breadboard gimbal, was executed at 10.0 Grms for 2 minutes in..

DKK 158.95
1

Trmm Observations of Polarization Difference in 85 Ghz - Information about Hydrometeors and Rain Rate - C Prabhakara

Trmm Observations of Polarization Difference in 85 Ghz - Information about Hydrometeors and Rain Rate - C Prabhakara

Observations made by the Precipitation Radar (PR) and the Microwave Imager (TMI) radiometer on board the Tropical Rainfall Measuring Mission (TRMM) satellite help us to show the significance of the 85 GHz polarization difference, PD85, measured by TMI. Rain type, convective or stratiform, deduced from the PR allows us to infer that PD85 is generally positive in stratiform rain clouds, while PD85 can be markedly negative in deep convective rain clouds. Furthermore, PD85 increases in a gross manner..

DKK 159.95
1

Government Operations - Radon Testing in Federal Buildings Needs Improvement and HUD's Radon Policy Needs Strengthening: T-Rced-91-48

Government Operations - Radon Testing in Federal Buildings Needs Improvement and HUD's Radon Policy Needs Strengthening: T-Rced-91-48

GAO discussed: (1) the Department of Housing and Urban Development's (HUD) radon-testing policy for HUD-assisted housing; and (2) federal agencies' efforts to reduce radon hazards at federal facilities. GAO noted that: (1) 22 agencies reported the results of radon testing at their facilities to the Environmental Protection Agency (EPA), including 10 that submitted partial results and were continuing to test buildings and some that were taking mitigation actions to protect federal workers; (2) some..

DKK 149.95
1

Space Telecommunications Radio System (Strs) Compliance Testing - Louis M Handler

Space Telecommunications Radio System (Strs) Compliance Testing - Louis M Handler

The Space Telecommunications Radio System (STRS) defines an open architecture for software defined radios. This document describes the testing methodology to aid in determining the degree of compliance to the STRS architecture. Non-compliances are reported to the software and hardware developers as well as the NASA project manager so that any non-compliances may be fixed or waivers issued. Since the software developers may be divided into those that provide the operating environment including the..

DKK 179.95
1

Ed465 243 - Test and Measurement Expert Opinions - A Dialogue about Testing Students with Disabilities Out of Level in Large-Scale Assessments. Out-Of

Ed465 243 - Test and Measurement Expert Opinions - A Dialogue about Testing Students with Disabilities Out of Level in Large-Scale Assessments. Out-Of

Two focus groups of test and measurement experts were held to explore the use of out-of-level testing for students with disabilities. The participants (n=17) included state and federal level assessment personnel, test company employees, and university professors. A content analysis of the narrative results indicated that there was no clear consensus in supporting or not supporting out-of-level testing. Instead, focus group participants were able to adopt numerous perspectives on many contentious..

DKK 234.00
1

Truck Safety - States' Progress in Testing and Licensing Commercial Drivers: Rced-90-78

Truck Safety - States' Progress in Testing and Licensing Commercial Drivers: Rced-90-78

Pursuant to a congressional request, GAO reviewed federal and state efforts to implement the Commercial Motor Vehicle Safety Act of 1986. GAO found that: (1) at least 33 states indicated that they would have difficulty testing and licensing commercial truck drivers by the April 1, 1992 deadline; (2) most states experienced problems in making computer changes needed to connect to the national driver information system; (3) the Federal Highway Administration (FHwA) did not develop specific action plans..

DKK 130.95
1

Testing the Effectiveness of Mobile Home Weatherization Measures in a Controlled Environment - The Seri Cmfert Project

Testing the Effectiveness of Mobile Home Weatherization Measures in a Controlled Environment - The Seri Cmfert Project

For several years the Solar Energy Research Institute has been testing the effectiveness of mobile home weatherization measures. During the winter of 1988-89, several weatherization measures were thermally tested on three mobile homes under controlled conditions inside a large environmental enclosure. The effects of each weatherization measure on conduction losses, infiltration losses, and combined furnace and duct-delivered heat efficiency were monitored. The study demonstrated that cost-effective..

DKK 146.95
1

Baseline Testing of Ultracapacitors for the Next Generation Launch Technology (Nglt) Project - Dennis J Eichenberg

Baseline Testing of Ultracapacitors for the Next Generation Launch Technology (Nglt) Project - Dennis J Eichenberg

The NASA John H. Glenn Research Center initiated baseline testing of ultracapacitors for the Next Generation Launch Transportation (NGLT) project to obtain empirical data for determining the feasibility of using ultracapacitors for the project. There are large transient loads associated with NGLT that require either a very large primary energy source or an energy storage system. The primary power source used for these tests is a proton exchange membrane (PEM) fuel cell. The energy storage system..

DKK 129.95
1

New Method for Dual-Axis Fatigue Testing of Large Wind Turbine Blades Using Resonance Excitation and Spectral Loading

New Method for Dual-Axis Fatigue Testing of Large Wind Turbine Blades Using Resonance Excitation and Spectral Loading

The blades of a wind turbine are generally considered to be the most critical component of the wind turbine system. The fundamental purpose of performing fatigue tests on wind turbine blades is to demonstrate that a blade, when manufactured to a certain set of specifications, has the prescribed reliability and service life. The purpose of the research conducted for this project is the advancement of knowledge and capabilities in the area of wind turbine blade fatigue testing.

DKK 246.95
1

Finance and Economics Discussion Series - Testing for Market Discipline in the European Banking Industry: Evidence from Subordinated Debt Issues - And

Finance and Economics Discussion Series - Testing for Market Discipline in the European Banking Industry: Evidence from Subordinated Debt Issues - And

The question of whether private investors can rationally discriminate between the risk taken by banks is empirically investigated by testing the risk sensitivity of European banks' subordinated notes and debentures (SND) spreads. A unique dataset of issuance spreads, issues and issuers rating, accounting and market measures of bank risk is used for a sample of European banks' SND issued during the 1991-2000: Q1 period. Moody's Bank Financial Strength (MBFS) and FitchIBCA Individual (FII) ratings..

DKK 130.95
1

The Testing Behind the Test Facility - The Acoustic Design of the NASA Glenn Research Center's World-Class Reverberant Acoustic Test Facility - Aron D

The Testing Behind the Test Facility - The Acoustic Design of the NASA Glenn Research Center's World-Class Reverberant Acoustic Test Facility - Aron D

The National Aeronautics and Space Administration (NASA) Glenn Research Center (GRC) is leading the design and build of the new world-class vibroacoustic test capabilities at the NASA GRC's Plum Brook Station in Sandusky, Ohio, USA. Benham Companies, LLC is currently constructing modal, base-shake sine and reverberant acoustic test facilities to support the future testing needs of NASA's space exploration program. The large Reverberant Acoustic Test Facility (RATF) will be approximately 101,000 cu..

DKK 158.95
1

Construction, Geology, and Aquifer Testing of the Maalo Road, Aahoaka Hill, and Upper Eleele Tank Monitor Wells, Kauai, Hawaii - Usgs Open-File Report

Construction, Geology, and Aquifer Testing of the Maalo Road, Aahoaka Hill, and Upper Eleele Tank Monitor Wells, Kauai, Hawaii - Usgs Open-File Report

The Maalo Road, Aahoaka Hill, and Upper Eleele Tank monitor wells were constructed using rotary drilling methods between July 1998 and August 2002 as part of a program of exploratory drilling, aquifer testing, and hydrologic analysis on Kauai. Aquifer tests were conducted in the uncased boreholes of the wells. The Maalo Road monitor well in the Lihue Basin penetrated 915 feet, mostly through mafic lava flows. Most of the rock samples from this well had chemical compositions similar to the Koloa Volcanics,..

DKK 234.00
1

Heavy-Duty Engine Testing Report - Correlation Testing of Caterpillar 3208 Dit

Heavy-Duty Engine Testing Report - Correlation Testing of Caterpillar 3208 Dit

The U.S. Environmental Protection Agency (EPA) was introduced on December 2, 1970 by President Richard Nixon. The agency is charged with protecting human health and the environment, by writing and enforcing regulations based on laws passed by Congress. The EPA's struggle to protect health and the environment is seen through each of its official publications. These publications outline new policies, detail problems with enforcing laws, document the need for new legislation, and describe new tactics..

DKK 160.95
1

Crash Testing German Banks

Crash Testing German Banks

In this paper we stress-test credit portfolios of twenty-eight German banks based on a Merton-type multifactor credit-risk model. The stress scenario is an economic downturn in the automobile sector. Although the percentage of loans in the automobile sector is relatively low for all banks in the sample, the expected loss conditional on the stress event increases substantially by 70-80 percent for the total portfolio. This result confirms the need to account for hidden sectoral concentration risk..

DKK 159.95
1

Drug Testing - Undercover Tests Reveal Significant Vulnerabilities in Dot's Drug Testing Program

Drug Testing - Undercover Tests Reveal Significant Vulnerabilities in Dot's Drug Testing Program

The BiblioGov Project is an effort to expand awareness of the public documents and records of the U.S. Government via print publications. In broadening the public understanding of government and its work, an enlightened democracy can grow and prosper. Ranging from historic Congressional Bills to the most recent Budget of the United States Government, the BiblioGov Project spans a wealth of government information. These works are now made available through an environmentally friendly, print-on-demand..

DKK 159.95
1

Icbm Modernization - Availability Problems and Flight Test Delays in Peacekeeper Program: Nsiad-89-105

Icbm Modernization - Availability Problems and Flight Test Delays in Peacekeeper Program: Nsiad-89-105

GAO provided information regarding the Air Force's progress in achieving and sustaining full operational capability for the Peacekeeper missile force. GAO found that the Air Force: (1) delayed its plans to start full operational capability testing, citing congressional directions, basing mode redirections, gaps between developmental and operational flight testing, and production delays; (2) believes that developmental flight testing has demonstrated the system's capability; (3) plans to conduct only..

DKK 234.00
1

Application of the Semi-Empirical Force-Limiting Approach for the Connect Scan Testbed - Lucas Staab

Application of the Semi-Empirical Force-Limiting Approach for the Connect Scan Testbed - Lucas Staab

The semi-empirical force-limited vibration method was developed and implemented for payload testing to limit the structural impedance mismatch (high force) that occurs during shaker vibration testing. The method has since been extended for use in analytical models. The Space Communications and Navigation Testbed (SCAN Testbed), known at NASA Glenn Research Center (GRC) as, the Communications, Navigation, and Networking re-Configurable Testbed (CoNNeCT) project utilized force-limited testing and analysis..

DKK 159.95
1

Characterizing Hydraulic Properties and Ground-Water Chemistry in Fractured-Rock Aquifers - A User's Manual for the Multifunction Bedrock-Aquifer Tran

Characterizing Hydraulic Properties and Ground-Water Chemistry in Fractured-Rock Aquifers - A User's Manual for the Multifunction Bedrock-Aquifer Tran

A borehole testing apparatus has been designed to isolate discrete intervals of a bedrock borehole and conduct hydraulic tests or collect water samples for geochemical analyses. This borehole testing apparatus, referred to as the Multifunction Bedrock-Aquifer Transportable Testing Tool (BAT3), includes two borehole packers, which when inflated can form a pressure-tight seal against smooth borehole walls; a pump apparatus to withdraw water from between the two packers; a fluid-injection apparatus..

DKK 213.95
1

Propulsion Test Handbook - Msfc and Ssc

Propulsion Test Handbook - Msfc and Ssc

This Handbook was prepared to provide Propulsion Test Personnel a central source of fundamental reference material. The Testing Process, which is a three-part process of pre-test activities, testing, and post-test activities, involves a collaborative effort from the mechanical, electrical, safety, and environmental disciplines in the test environment. Pre-test activities, testing, and post-test activities processes will vary, per test requirements; however, the content of this Handbook should cover..

DKK 352.95
1

Air Force Military Personnel Testing System

Air Force Military Personnel Testing System

The United States Air Force (USAF) is the aerial warfare service branch of the United States Armed Forces. The USAF was initially a part of the U.S. Army, but was formed as a separate branch of the military in 1947 under the National Security Act. Although it is the most recent branch of the U.S. Military to be formed, the USAF is the most technologically advanced air force in the world. The Air Force e-Publishing Library's mission is to provide documents for Air Force customers worldwide, and supply..

DKK 234.00
1

Guide to Nondestructive Testing of Concrete

Guide to Nondestructive Testing of Concrete

The Department of Transportation (USDOT or DOT) is a federal cabinet department of the United States government. The office's main concerns are those associated with transportation and transportation needs across the country. Established in 1967, the DOT is administered by the United States Secretary of Transportation. Some of the DOT's larger agencies include the Federal Aviation Administration (FAA), the Federal Transit Administration (FTA), the Maritime Administration (MARAD), and the Federal..

DKK 180.95
1