Sample records for pallet mil-std-1660 tests

  1. Acceptance Test Procedure: SY101 air pallet system

    SciTech Connect

    Koons, B.M.

    1995-05-30

    The purpose of this test procedure is to verify that the system(s) procured to load the SY-101 Mitigation Test Pump package fulfills its functional requirements. It will also help determine the man dose expected due to handling of the package during the actual event. The scope of this procedure focuses on the ability of the air pallets and container saddles to carry the container package from the new 100 foot concrete pad into 2403-WD where it will be stored awaiting final disposition. This test attempts to simulate the actual event of depositing the SY-101 hydrogen mitigation test pump into the 2403-WD building. However, at the time of testing road modifications required to drive the 100 ton trailer into CWC were not performed. Therefore a flatbed trailer will be use to transport the container to CWC. The time required to off load the container from the 100 ton trailer will be recorded for man dose evaluation on location. The cranes used for this test will also be different than the actual event. This is not considered to be an issue due to minimal effects on man dose.

  2. Orion MPCV Service Module Avionics Ring Pallet Testing, Correlation, and Analysis

    NASA Technical Reports Server (NTRS)

    Staab, Lucas; Akers, James; Suarez, Vicente; Jones, Trevor

    2012-01-01

    The NASA Orion Multi-Purpose Crew Vehicle (MPCV) is being designed to replace the Space Shuttle as the main manned spacecraft for the agency. Based on the predicted environments in the Service Module avionics ring, an isolation system was deemed necessary to protect the avionics packages carried by the spacecraft. Impact, sinusoidal, and random vibration testing were conducted on a prototype Orion Service Module avionics pallet in March 2010 at the NASA Glenn Research Center Structural Dynamics Laboratory (SDL). The pallet design utilized wire rope isolators to reduce the vibration levels seen by the avionics packages. The current pallet design utilizes the same wire rope isolators (M6-120-10) that were tested in March 2010. In an effort to save cost and schedule, the Finite Element Models of the prototype pallet tested in March 2010 were correlated. Frequency Response Function (FRF) comparisons, mode shape and frequency were all part of the correlation process. The non-linear behavior and the modeling the wire rope isolators proved to be the most difficult part of the correlation process. The correlated models of the wire rope isolators were taken from the prototype design and integrated into the current design for future frequency response analysis and component environment specification.

  3. MW pallets disinfestations.

    PubMed

    Bisceglia, Bruno; De Leo, Roberto; Diaferia, Nicola

    2009-01-01

    Wood packaging represents a pathway for the introduction and spread of pests. In March 2002, the Food and Agriculture Organization (F.A.O.) issued regulations describing globally approved phytosanitary measures that significantly reduce the risk provoked by most pests. The main purpose of this work is to describe the disinfesting system of pallets through microwave treatment. PMID:21384726

  4. Robot Palletizing Work Cell Simulation

    NSDL National Science Digital Library

    Eslami, Akbar

    The purpose of this project is to design a fully functional automated palletizing work cell that will simulate real-world palletizing of two different size bottles in a classroom environment. Successful completion of this project is based on the following components working together in a system: the bottle feeder with a pneumatic actuator, two photoelectric sensors, a conveyor, a programmable logic controller (PLC), and a robot. All the components are integrated to perform a unit task of palletizing. The process begins when a pneumatic actuator pushes a bottle from the tray of the bottle feeder onto the conveyor belt. The conveyor belt then transports the bottle to the inspection station, where two photoelectric sensors are mounted to detect the bottle and determine its size. One of the sensors sends the signal to stop the conveyor while the other sensor prompts the robot to start palletizing.

  5. Waste Toolkit A-Z Wooden Pallets

    E-print Network

    Melham, Tom

    Waste Toolkit A-Z Wooden Pallets Can I recycle wooden pallets? Yes.Departments and colleges can recycle wooden pallets through a local company called TR Recycling. TR Recycling provides bulky waste Plastics (non-contaminated plastic only ­ contact TR Recycling for details) Soil & green waste Wooden

  6. Loading pallets with non-identical items

    Microsoft Academic Search

    E. E. Bischoff; F. Janetz; M. S. W. Ratcliff

    1995-01-01

    This paper addresses what has been called the ‘Distributor's Pallet Packing Problem’, i.e. the problem of loading a pallet with non-homogeneous items. A new heuristic approach to this problem is described which aims to generate efficient loading arrangements which at the same time also provide a high degree of inherent stability. The results of experimental evaluations of the approach are

  7. Engineering study for pallet adapting the Apollo laser altimeter and photographic camera system for the Lidar Test Experiment on orbital flight tests 2 and 4

    NASA Technical Reports Server (NTRS)

    Kuebert, E. J.

    1977-01-01

    A Laser Altimeter and Mapping Camera System was included in the Apollo Lunar Orbital Experiment Missions. The backup system, never used in the Apollo Program, is available for use in the Lidar Test Experiments on the STS Orbital Flight Tests 2 and 4. Studies were performed to assess the problem associated with installation and operation of the Mapping Camera System in the STS. They were conducted on the photographic capabilities of the Mapping Camera System, its mechanical and electrical interface with the STS, documentation, operation and survivability in the expected environments, ground support equipment, test and field support.

  8. Naval Waste Package Drop With Emplacement Pallet

    SciTech Connect

    D.G. McLenzie

    2005-08-04

    The objective of this calculation was to determine the structural responses of the Emplacement Pallet and Naval Long Waste Package (WP) to drops from their highest possible lift heights. The scope of this document was limited to reporting the calculation results in terms of maximum stress intensities. The Naval Long WP is classified as Quality Level 1 (Ref 12, page 7, Table 1). The Emplacement Pallet is classified as Quality Level 2 (Ref. 19, page 7, Table 1). Therefore, this calculation is subject to the requirements of the Quality Assurance Requirements and Description (Ref. 11). AP-3.12Q, Calculations, was used to perform the calculation and develop the document (Ref. 3).

  9. Ultrasonic defect detection in wooden pallet parts for quality sorting

    Microsoft Academic Search

    Daniel L. Schmoldt; Robert M. Nelson; Robert J. Ross

    Millions of wooden pallets are discarded annually due to damage or because their low cost makes them readily disposable. Higher quality wooden pallets, however, can be built from high quality deckboards and stringers, and have a much longer life cycle and a lower cost per trip. The long-term goal of this project is to develop an automated pallet part inspection

  10. NGST/XRCF Design and Build Wavescope System Pallet

    NASA Technical Reports Server (NTRS)

    Geary, Joe

    1999-01-01

    Based on the successful Wavescope demonstration at MSFC at the end of March, the decision was made by the optical testing team to purchase an upgraded Wavescope from AOA. The MSFC version would include: a higher resolution camera (1000 x 1000 pixels); a higher density lenslet array (150 x 150); updated software; and longer cables (to accommodate the remote operation of the Wavescope optical head which was resident in the Beam Guide Tube). The AOA proposal for the new instrument was received in mid-April, and delivered to MSFC in mid-July. A considerable amount of effort was expended to provide the infrastructure needed for Wavescope operation, and to incorporate it into the overall test system. This was provided by the Wavescope System Pallet (WSP) built by UAH. The WSP is illustrated. Several instruments are incorporated on this pallet. These include the: Wavescope optical head; a PDI wavefront sensor; a point spread function sensor; a Leica light-based distance measuring sensor. In addition there is a single mode fiber point source (fed from a separate source pallet) which serves both as a reference for the Wavescope and as a source point for the test mirror. There is a dual function lens which both collimates the beam from the test image point, and images the test mirror onto the lenslet array. There is a high quality Collimator which can provide a flat input wavefront directly into the Wavescope. There are also various aids such as an alignment laser, an alignment telescope, alignment sticks and apertures. The WSP was delivered to MSFC on 7/28/99. An picture shows the WSP installed in the Guide Tube at the X-Ray Calibration Facility (XRCF).

  11. Cold-formed steel pallet rack connection: an experimental study

    NASA Astrophysics Data System (ADS)

    Mohan, Vimal; Prabha, P.; Rajasankar, J.; Iyer, Nagesh R.; Raviswaran, N.; Nagendiran, V.; Kamalakannan, S. S.

    2015-03-01

    Industrial pallet rack systems are made up of three-dimensional structural arrangement using cold-formed steel members. The rack columns (upright) have perforations at prescribed intervals to facilitate the assemblage of beams with end connections. The tabs are used as connections which are engaged into the perforations and are in particular, highly semi-rigid in nature. Due to the diversity of rack systems, connecting member's stiffness and strength, it is almost impossible to develop a generalised model for analytical predication of the connection stiffness. This paper describes the beam-column connection tests carried out on a commercially available pallet rack system by adopting single cantilever test set-up. Thirty-five sets of combinations are identified based on the variation in upright profile and thickness, depth of beam and the connector to study the connection stiffness. Three tests were performed for each set to bring in uniformity in the result taking the total number of tests to 105. A full range parametric study is carried out to understand the influence of above said parameters on moment-rotation behaviour and the joint stiffness. The experimental results showed that an improved performance of the joint connection is achieved using connectors with more number of tabs, greater thickness and improved profile of the upright and larger depth of the beam.

  12. OSS-1 Payload Pallet processing after arrival at O and C bldg at KSC for STS-3

    NASA Technical Reports Server (NTRS)

    1981-01-01

    OSS-1 Payload Pallet and vehicle changing and potential experiment being checked out by techicians after arrival at the Operations and Checkout (O and C) building at Kennedy Space Center for STS-3 mission. Photos include high view of OSS-1 payload pallet in the Cargo Integration Test Equipment (CITE) work stand, which simulates the orbiter's cargo bay (39285); view of technicians examing the Vehicle Charging and Potential (VCAP) experiment (39286); view of the Thermal Canister Experiment (39287).

  13. New pallet irradiation for Gammaster International

    NASA Astrophysics Data System (ADS)

    Möhlmann, Mr. J. H. F.

    1993-07-01

    State of the art technology offers many opportunities to improve production process with ionizing radiation. Also the requirements to this process become more and more stringent; who was aware of the ISO-9000 Standards? Now it is a necessary concept? Internal and external audits, in particular by Regulatory Bodies such as the FDA and DHSS/MCA, are necessary and commonplace requirements when operating in the Healthcare and Pharmaceutical sectors. Efficiency is a major requirement for industry and also for our radiation business. With all the above mentioned items in mind, Gammaster International B.V. in close cooperation with Nordion International Inc. has developed and built a new type Pallet Irradiator. In this new concept, our 22 years experience in gamma processing and the expertise gained in 10 years of operation of pallet irradiators was incorporated. For this irradiator Gammaster International designed and built a new process control console, incorporating state of the art technology such as: - A well-balanced safety system - A control panel, with status indication for all essential operating and safety parameters - Advances warning for necessary maintenance work - Automatic timer-setting control in addition to an automatic timer setting modification - Clear indication of the position of the product inside the unit and its status - Fully automatic product information generated when the product leaves the irradiation unit - Visual process control with the help of a color monitor - Incremental dose-control - Fault identification

  14. THE PALLET INDUSTRY: A CHANGING HARDWOOD MA_T

    Microsoft Academic Search

    Gilbert P. Dempsey; David G. Martens

    From its inception during World War II, the wooden pallet industry has grown to become the Nation's largest industrial consumer of hardwood lumber products. Since most of the raw material in wooden pallets is lower grade lumber, the palter industry's growth, efficiency, and changing raw material inputs must be of concern to the grade hardwood lumber industry, the fine-hardwood lumber-using

  15. 15. VIEW OF THE SAFE GEOMETRY PLUTONIUM METAL STORAGE PALLETS ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    15. VIEW OF THE SAFE GEOMETRY PLUTONIUM METAL STORAGE PALLETS FROM THE INSIDE OF AN INPUT-OUTPUT STATION. INDIVIDUAL CONTAINERS OF PLUTONIUM ARE STORED IN THE WATER-FILLED, DOUBLE-WALLED STAINLESS STEEL TUBES THAT ARE WELDED ONTO THE PALLETS. (12/3/88) - Rocky Flats Plant, Plutonium Recovery Facility, Northwest portion of Rocky Flats Plant, Golden, Jefferson County, CO

  16. Closed-loop pallet manipulation in unstructured environments

    E-print Network

    Walter, Matthew R.

    This paper addresses the problem of autonomous manipulation of a priori unknown palletized cargo with a robotic lift truck (forklift). Specifically, we describe coupled perception and control algorithms that enable the ...

  17. Analysis and behaviour of steel storage pallet racks

    Microsoft Academic Search

    Nadia Baldassino; Claudio Bernuzzi

    2000-01-01

    For steel storage pallet racks, lateral stiffness in down-aisle direction is usually provided by beam-to-column joints and base-plate connections, owing to the impracticability of using bracing systems in selected areas of pallet racks. Because of the high slenderness of members, second order effects influence remarkably the frame performance. The model of unbraced semi-continuous frame is hence adopted for design.This paper

  18. 77 FR 58774 - New Pallet Preparation Standards for Periodicals

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-24

    ...Line 2 information listed below and under 8.6, Pallet Placards. * * * * * [Delete 10.1.5g and 10.1.5h in their entirety and add a new 10.1.5g as follows:] g. SCF through mixed ADC, use 8.10.2h through 8.10.2k, as...

  19. Development of baseline random vibration environment criteria for Shuttle pallet payload subsystems

    NASA Technical Reports Server (NTRS)

    On, F. J.

    1984-01-01

    This paper presents a statistical evaluation of measured random vibration response data obtained from the Office of Space Science-1 (OSS-1) pallet payload. The data were measured during the acoustic test simulation (September 1980) and the ascent phase of the flight of STS-3, Orbiter 102 (launched from the Kennedy Space Center on March 22, 1982). Acoustic test efficiency factors are evaluated based on the Dynamic, Acoustic and Thermal Environments (DATE) instrumentation as the source of the measured vibration data. Test efficiency correction to test data is applied in the extrapolation of non-DATE acoustic test data to increase sample population size for improved statistical evaluation. For baseline criteria evaluation and development, data are grouped in accordance with the payload zone in which the component is mounted.

  20. Automatic design of 3-d fixtures and assembly pallets

    SciTech Connect

    Brost, R.C.; Peters, R.R.

    1995-12-31

    This paper presents an implemented algorithm that automatically designs fixtures and assembly pallets to hold three-dimensional parts. The designed fixtures rigidly constrain and locate the part, obey task constraints, are robust to part shape variations, are easy to load, and are economical to produce. The algorithm is guaranteed to find the global optimum solution that satisfies these and other pragmatic conditions. We present the results of the algorithm applied to several practical manufacturing problems. For these complex problems the algorithm typically returns initial high-quality fixture designs in less than two minutes, and identifies th global optimum design in just over an hour.

  1. Adaptation-Guided Retrieval for a Diagnostic and Repair Help System Dedicated to a Pallets Transfer

    E-print Network

    Paris-Sud XI, Université de

    Adaptation-Guided Retrieval for a Diagnostic and Repair Help System Dedicated to a Pallets Transfer for failure diagnosis of a pallets transfer. Adaptation phase is the key problem of the case-based reasoning help. Retrieval step guided by adaptation is proposed, as a result similarity measures associated

  2. Automatic design of 3-d fixtures and assembly pallets

    SciTech Connect

    Brost, R.C.; Peters, R.R. [Sandia National Labs., Albuquerque, NM (United States). Intelligent Systems and Robotics Center

    1997-01-01

    This paper presents an implemented algorithm that automatically designs fixtures and assembly pallets to hold three-dimensional parts. All fixtures generated by the algorithm employ round side locators, a side clamp, and cylindrical supports; depending on the value of an input control flag, the fixture may also include swing-arm top clamps. Using these modular elements, the algorithm designs fixtures that rigidly constrain and locate the part, obey task constraints, are robust to part shape variations, are easy to load, and are economical to produce. For the class of fixtures that are considered, the algorithm is guaranteed to find the global optimum design that satisfies these and other pragmatic conditions. The authors present the results of the algorithm applied to several practical manufacturing problems. For these complex problems the algorithm typically returns initial high-quality fixture designs in less than a minute, and identifies the global optimum design in just over an hour. The algorithm is also capable of solving difficult design problems where a single fixture is desired that can hold either of two parts.

  3. Atmospheric science facility pallet-only mode space transportation system payload (feasibility study), Volume 1

    NASA Technical Reports Server (NTRS)

    1975-01-01

    The economic and technical feasibility is assessed of employing a pallet-only mode for conducting Atmospheric Magnetospheric Plasmas-in-Space experiments. A baseline design incorporating the experiment and instrument descriptions is developed. The prime instruments are packaged into four pallets in a physical and functional manner compatible with the Space Transportation System capabilities and/or constraints and an orbiter seven-day mission timeline. Operational compatibility is verified between the orbiter/payload and supporting facilities. The development status and the schedule requirements applicable to the Atmospheric Science Facility mission are identified. Conclusions and recommendations are presented and discussed.

  4. Research of mobile business integrated with RFID technology in the logistics pallet leasing

    Microsoft Academic Search

    Hong Liu; Yang Peng

    2009-01-01

    At present, more and more enterprises have been dedicated in introducing application of radio frequency identification (RFID) technology into their work flow or logistics management or goods tracking, etc. In this paper, it presents an application framework of a RFID prototype system integrating mobile business (m-business) in the logistics pallet leasing. The aims of the framework are to keep track

  5. Passive Thrust Oscillation Mitigation for the CEV Crew Pallet System

    NASA Technical Reports Server (NTRS)

    Sammons, Matthew; Powell, Cory; Pellicciotti, Joseph; Buehrle, Ralph; Johnson, Keith

    2012-01-01

    The Crew Exploration Vehicle (CEV) was intended to be the next-generation human spacecraft for the Constellation Program. The CEV Isolator Strut mechanism was designed to mitigate loads imparted to the CEV crew caused by the Thrust Oscillation (TO) phenomenon of the proposed Ares I Launch Vehicle (LV). The Isolator Strut was also designed to be compatible with Launch Abort (LA) contingencies and landing scenarios. Prototype struts were designed, built, and tested in component, sub-system, and system-level testing. The design of the strut, the results of the tests, and the conclusions and lessons learned from the program will be explored in this paper.

  6. Optimization of a Lunar Pallet Lander Reinforcement Structure Using a Genetic Algorithm

    NASA Technical Reports Server (NTRS)

    Burt, Adam

    2014-01-01

    In this paper, a unique system level spacecraft design optimization will be presented. A Genetic Algorithm is used to design the global pattern of the reinforcing structure, while a gradient routine is used to adequately stiffen the sub-structure. The system level structural design includes determining the optimal physical location (and number) of reinforcing beams of a lunar pallet lander deck structure. Design of the substructure includes determining placement of secondary stiffeners and the number of rivets required for assembly.. In this optimization, several considerations are taken into account. The primary objective was to raise the primary natural frequencies of the structure such that the Pallet Lander primary structure does not significantly couple with the launch vehicle. A secondary objective is to determine how to properly stiffen the reinforcing beams so that the beam web resists the shear buckling load imparted by the spacecraft components mounted to the pallet lander deck during launch and landing. A third objective is that the calculated stress does not exceed the allowable strength of the material. These design requirements must be met while, minimizing the overall mass of the spacecraft. The final paper will discuss how the optimization was implemented as well as the results. While driven by optimization algorithms, the primary purpose of this effort was to demonstrate the capability of genetic algorithms to enable design automation in the preliminary design cycle. By developing a routine that can automatically generate designs through the use of Finite Element Analysis, considerable design efficiencies, both in time and overall product, can be obtained over more traditional brute force design methods.

  7. Autonomous pallet localization and picking for industrial forklifts: a robust range and look method

    NASA Astrophysics Data System (ADS)

    Baglivo, L.; Biasi, N.; Biral, F.; Bellomo, N.; Bertolazzi, E.; Da Lio, M.; De Cecco, M.

    2011-08-01

    A combined double-sensor architecture, laser and camera, and a new algorithm named RLPF are presented as a solution to the problem of identifying and localizing a pallet, the position and angle of which are a priori known with large uncertainty. Solving this task for autonomous robot forklifts is of great value for logistics industry. The state-of-the-art is described to show how our approach overcomes the limitations of using either laser ranging or vision. An extensive experimental campaign and uncertainty analysis are presented. For the docking task, new dynamic nonlinear path planning which takes into account vehicle dynamics is proposed.

  8. Summary of Calculations Performed to Evaluate the Structural Integrity of the 6-Pack Container Pallet

    SciTech Connect

    Hrousis, C.A.

    1999-10-01

    The 6-Pack Container Pallet is a space-frame structure, designed by Mason & Hanger Corp. to hold six AL-R8 containers together in a convenient bundle. The AL-R8 containers hold nuclear weapon components that require special care and consideration. The primary purpose of the 6-pack assembly is storage, but there is some manipulation as the 6-pack is loaded, moved and stacked. Recently, there has been an upgrade to a new AL-R8-SI container that is heavier than its predecessor was. The analysis discussed herein was conducted to ensure that the increased stresses due to the heavier containers are within design safety limits. At this time, however, there is disagreement as to what the strength requirements for the 6-pack pallet are. Depending on which classification applies to the structure, a factor of safety (yield stress over design stress) of 3.0 or more may need to be satisfied. This report documents strength analyses of loaded 6-packs performed at Lawrence Livermore National Laboratory (LLNL). The entire 6-pack assembly was discretized into a mesh with a total of 38682 first-order finite elements. The stresses were found for four characteristic load cases using the implicit code NIKE3D. This was a static strength analysis only. Dynamic loading was not considered. Stability, also, was not addressed. There are two 6-pack pallet designs under consideration: one that uses 1/2 inch diameter bolts and one with 3/8 inch bolts. In both cases, the maximum torque applied to the bolts is 55 in-lbf. This analysis finds the minimum factor of safety based on yield to be less than 3.0 in the main load path of both the 1/2 inch and 3/8 inch diameter bolt designs. In general, the peak stresses found in the 1/2 inch bolt design are less than those of the 3/8 inch bolt design. At the welded ends of the main tube section that spans the length of the pallet, the minimum safety factor is 2.14 when 1/2 inch bolts are used and 1.77 when 3/8 inch bolts are used. Minimum safety factors of 1.91 and 1.78 were found around the bolt holes in the lateral supports in the 1/2 inch bolt and 3/8 inch bolt designs, respectively.

  9. Preliminary feasibility study of pallet-only mode for magnetospheric and plasmas in space payloads, volume 4

    NASA Technical Reports Server (NTRS)

    1976-01-01

    Results of studies performed on the magnetospheric and plasma portion of the AMPS are presented. Magnetospheric and plasma in space experiments and instruments are described along with packaging (palletization) concepts. The described magnetospheric and plasma experiments were considered as separate entities. Instrumentation ospheric and plasma experiments were considered as separate entities. Instrumentation requirements and operations were formulated to provide sufficient data for unambiguous interpretation of results without relying upon other experiments of the series. Where ground observations are specified, an assumption was made that large-scale additions or modifications to existing facilities were not required.

  10. Energy conversion efficiencies of thermoelectric pallets (Bi2Pb3,Bi2Te3 and Pb2Te3) under the influences of electric and magnetic fields

    NASA Astrophysics Data System (ADS)

    Singh, Jaspal; Verma, S. S.

    2013-06-01

    This paper aims to introduce the ability of thermo electric pallets to convert waste heat into electricity and also about the effect of electric or magnetic fields, which can exist already or applied in the conditions of their operation. Three thermo electric pallets (Bi2Pb3,Bi2Te3 and Pb2Te3) of cylindrical dimensions are prepared by 15mm mixture of different compositions. Thermo emf generations are carried out in the normal mode and then under the influence of applied electric and magnetic fields of different magnitudes in the temperature range of 460K.

  11. Environmental Technology Verification Report for Private Pallet Security Systems, LLC. MultiTrack? Layered Tracking Systems

    EPA Science Inventory

    This test simulated shipments of hazardous waste contained in polyethylene (poly) drums, metal drums, and corrugated boxes through routine land transportation routes and across international ports of entry in the El Paso/Ciudad Juarez trade area. RFID tags were attached to four ...

  12. A Test of the Construction Pier Aug. 8, 2005 @ UHH and ML Site

    E-print Network

    Learned, John

    A Test of the Construction Pier Aug. 8, 2005 @ UHH and ML Site Y.Asaoka w/ Sunny and Jamie as the pallet. HPM guy load the block by himself, but this is impossible for us to do same thing. Carrying Test the shackle, the hole of the strip on the block was a little bit enlarged. #12;Placing Test @ ML Site (1

  13. Cluster Development Test 2: An Assessment of a Failed Test

    NASA Technical Reports Server (NTRS)

    Machin, Ricardo A.; Evans, Carol T.

    2009-01-01

    On 31 July 2008 the National Aeronautics and Space Administration Crew Exploration Vehicle Parachute Assembly System team conducted the final planned cluster test of the first generation parachute recovery system design. The two primary test objectives were to demonstrate the operation of the complete parachute system deployed from a full scale capsule simulator and to demonstrate the test technique of separating the capsule simulator from the Low Velocity Air Drop pallet used to extract the test article from a United States Air Force C-17 aircraft. The capsule simulator was the Parachute Test Vehicle with an accurate heat shield outer mold line and forward bay compartment of the Crew Exploration Vehicle Command Module. The Parachute Test Vehicle separated cleanly from the pallet following extraction, but failed to reach test conditions resulting in the failure of the test and the loss of the test assets. No personnel were injured. This paper will discuss the design of the test and the findings of the team that investigated the test, including a discussion of what were determined to be the root causes of the failure.

  14. Comparative evaluation of Space Transportation System (STS)-3 flight and acoustic test random vibration response of the OSS-1 payload

    NASA Technical Reports Server (NTRS)

    On, F. J.

    1983-01-01

    A comparative evaluation of the Space Transportation System (STS)-3 flight and acoustic test random vibration response of the Office of Space Science-1 (OSS-1) payload is presented. The results provide insight into the characteristics of vibroacoustic response of pallet payload components in the payload bay during STS flights.

  15. Summary of CPAS EDU Testing Analysis Results

    NASA Technical Reports Server (NTRS)

    Romero, Leah M.; Bledsoe, Kristin J.; Davidson, John.; Engert, Meagan E.; Fraire, Usbaldo, Jr.; Galaviz, Fernando S.; Galvin, Patrick J.; Ray, Eric S.; Varela, Jose

    2015-01-01

    The Orion program's Capsule Parachute Assembly System (CPAS) project is currently conducting its third generation of testing, the Engineering Development Unit (EDU) series. This series utilizes two test articles, a dart-shaped Parachute Compartment Drop Test Vehicle (PCDTV) and capsule-shaped Parachute Test Vehicle (PTV), both of which include a full size, flight-like parachute system and require a pallet delivery system for aircraft extraction. To date, 15 tests have been completed, including six with PCDTVs and nine with PTVs. Two of the PTV tests included the Forward Bay Cover (FBC) provided by Lockheed Martin. Advancements in modeling techniques applicable to parachute fly-out, vehicle rate of descent, torque, and load train, also occurred during the EDU testing series. An upgrade from a composite to an independent parachute simulation allowed parachute modeling at a higher level of fidelity than during previous generations. The complexity of separating the test vehicles from their pallet delivery systems necessitated the use the Automatic Dynamic Analysis of Mechanical Systems (ADAMS) simulator for modeling mated vehicle aircraft extraction and separation. This paper gives an overview of each EDU test and summarizes the development of CPAS analysis tools and techniques during EDU testing.

  16. PALLET HANDLING DEVICE CONTROLS IMPLEMENTATION

    E-print Network

    Williams II, Robert L.

    , and PLCs are now listed. Information on photoelectric and ultrasonic sensors for measurement tasks of digital incremental encoders was obtained from Ruocco (1987). Application examples of PLC-type controllers from Baumer Electric Company (1998). Specifications and operation of a #12;photoelectric infrared (IR

  17. Launch Deployment Assembly Extravehicular Activity Neutral Buoyancy Development Test Report

    NASA Technical Reports Server (NTRS)

    Loughead, T.

    1996-01-01

    This test evaluated the Launch Deployment Assembly (LDA) design for Extravehicular Activity (EVA) work sites (setup, igress, egress), reach and visual access, and translation required for cargo item removal. As part of the LDA design, this document describes the method and results of the LDA EVA Neutral Buoyancy Development Test to ensure that the LDA hardware support the deployment of the cargo items from the pallet. This document includes the test objectives, flight and mockup hardware description, descriptions of procedures and data collection used in the testing, and the results of the development test at the National Aeronautics and Space Administrations (NASA) Marshall Space Flight Center (MSFC) Neutral Buoyancy Simulator (NBS).

  18. STS-35 Mission Specialist Hoffman watches IPS testing in KSC's O and C Building

    NASA Technical Reports Server (NTRS)

    1989-01-01

    STS-35 Mission Specialist (MS) Jeffrey A. Hoffman participates in tests being conducted on the Astronomy Laboratory 1 (ASTRO-1) instrument pointing system (IPS) in the Kennedy Space Center (KSC) Operations and Checkout Building cleanroom. IPS will position Astro observatory's three ultraviolet telescopes on unpressurized spacelab pallet mounted in Columbia's, Orbiter Vehicle (OV) 102's, payload bay (PLB). View provided by KSC with alternate number KSC-88PC-417.

  19. The Canadian arm is moved in the SSPF for testing

    NASA Technical Reports Server (NTRS)

    2000-01-01

    Workers in the Space Station Processing Facility move the Space Station Remote Manipulator System (SSRMS), also known as the '''Canadian arm,''' to a pallet for testing. The SSRMS is part of Canada's Mobile Servicing System, an essential component of the International Space Station. This robotic system will play a key role in Space Station assembly and maintenance, moving equipment and supplies around the Station, releasing and capturing satellites, supporting astronauts working in space and servicing instruments and other payloads attached to the Space Station. SSRMS will be on Shuttle mission STS-100, flight 6A, to the Space Station, scheduled for launch April 19, 2001.

  20. The Canadian arm is moved in the SSPF for testing

    NASA Technical Reports Server (NTRS)

    2000-01-01

    The Space Station Remote Manipulator System (SSRMS), also known as the '''Canadian arm,''' (at right) arrives at a pallet in the Space Station Processing Facility where it will undergo testing once in place. The SSRMS is part of Canada's Mobile Servicing System, an essential component of the International Space Station. This robotic system will play a key role in Space Station assembly and maintenance, moving equipment and supplies around the Station, releasing and capturing satellites, supporting astronauts working in space and servicing instruments and other payloads attached to the Space Station. SSRMS will be on Shuttle mission STS-100, flight 6A, to the Space Station, scheduled for launch April 19, 2001.

  1. Teach Efficient Production with Modular Fixturing Pallets

    ERIC Educational Resources Information Center

    Creger, Don W.; Payne, Brent A.

    2010-01-01

    Advances in technology have yielded computer numerical control (CNC) machines and computer-aided manufacturing (CAM) software that saves time and increases productivity in today's industrial world. Training students to understand and use these technologies has become a key ingredient in preparing them for work in industry. Teachers of machining…

  2. Test plan for a live drum survey using the gamma-neutron sensor

    SciTech Connect

    Gehrke, R.J.; Roybal, L.G.; Thompson, D.N.

    1995-07-01

    This plan describes performance tests to be made with the Gamma/Neutron Sensor (GNS), which that was designed and built for infield assay at an excavation site. The performance tests will be performed in Building WMF-628 in the Transuranic Storage Area of the Radioactive Waste Management Complex at the Idaho National Engineering Laboratory on stored 55-gal drums of transuranic waste from the Rocky Flats Plant. The GNS is mounted on a wooden pallet that will allow horizontal and vertical scans of the stacked drums. Scanning speed and GNS sensitivity for gamma and neutron radiation fields will be estimated. Effects of temperature, electronic, and acoustic noise will be evaluated. Two- and three-dimensional plots of radiation field as a function of position will be developed from the data.

  3. ESOL Tests and Testing

    ERIC Educational Resources Information Center

    Stoynoff, Stephen; Chapelle, Carol A.

    2005-01-01

    This book describes how ESOL tests and test users have changed greatly in the past few decades. Some widely used ESOL tests have been revised, with a number of new tests incorporating advances in computer technology. In addition, many more ESOL practitioners than in the past are responsible for selecting and using tests. The authors introduce…

  4. HIV Testing

    MedlinePLUS

    ... people may test false-negative with this test. RNA tests detect the virus directly (instead of the ... tested again at the 3-month mark. For RNA tests or antibody/antigen tests, that timeframe may ...

  5. Test Architecture, Test Retrofit

    ERIC Educational Resources Information Center

    Fulcher, Glenn; Davidson, Fred

    2009-01-01

    Just like buildings, tests are designed and built for specific purposes, people, and uses. However, both buildings and tests grow and change over time as the needs of their users change. Sometimes, they are also both used for purposes other than those intended in the original designs. This paper explores architecture as a metaphor for language…

  6. Pinworm test

    MedlinePLUS

    Oxyuriasis test; Enterobiasis test; Tape test ... diagnose this infection is to do a tape test. The best time to do this is in ... to determine if there are eggs. The tape test may need to be done on 3 separate ...

  7. Testing 1985

    ERIC Educational Resources Information Center

    Hunter, William J.; And Others

    1985-01-01

    Presents articles on test anxiety, personality tests, history of tests and benefits to be derived from their use, tests as tools in career decision-making, temperament needs for certain jobs (as determined by personality tests), interest inventories, testing exceptional students, and testing to evaluate vocational needs of special needs groups.…

  8. Thyroid Tests

    MedlinePLUS

    ... on Endocrine and Metabolic Diseases : Thyroid Tests Thyroid Tests On this page: What is the thyroid? What ... Top ] Why do health care providers perform thyroid tests? Health care providers perform thyroid tests to assess ...

  9. Coombs test

    MedlinePLUS

    Direct antiglobulin test; Indirect antiglobulin test ... No special preparation is necessary for this test. ... There are two types of the Coombs test: Direct Indirect The ... that are stuck to the surface of red blood cells. Many diseases ...

  10. Pharmacogenomic Testing

    MedlinePLUS

    ... related screening Reimbursement for Genetic Testing Whole Genome Sequencing Working with healthcare professionals Learn More Pharmacogenomics and ... Testing & Counseling Compensation for Genetic Testing Whole Genome Sequencing Screening vs. Testing What Is Genetic Counseling? Participating ...

  11. Predictive Testing

    MedlinePLUS

    ... help you make the decision. What Is Predictive Genetic Testing Predictive genetic testing searches for genetic changes, or ... Support Group Financial Planning Who Should I Tell? Genetic Testing & Counseling Compensation for Genetic Testing Whole Genome Sequencing ...

  12. Corrective action plan for corrective action Unit 342: Area 23 Mercury Fire Training Pit, Nevada Test Site, Nevada

    SciTech Connect

    Nacht, S.

    1999-08-01

    The Mercury Fire Training Pit is a former fire training area located in Area 23 of the Nevada Test Site (NTS). The Mercury Fire Training Pit was used from approximately 1965 to the early 1990s to train fire-fighting personnel at the NTS, and encompasses an area approximately 107 meters (m) (350 feet [ft]) by 137 m (450 ft). The Mercury Fire Training Pit formerly included a bermed burn pit with four small burn tanks, four large above ground storage tanks an overturned bus, a telephone pole storage area, and areas for burning sheds, pallets, and cables. Closure activities will include excavation of the impacted soil in the aboveground storage tank and burn pit areas to a depth of 1.5 m (5 ft), and excavation of the impacted surface soil downgradient of the former ASTs and burnpit areas to a depth of 0.3 m (1 ft). Excavated soil will be disposed in the Area 6 Hydrocarbon Landfill at the NTS.

  13. TSI test

    MedlinePLUS

    ... test if you have signs or symptoms of: Graves disease Toxic multinodular goiter The test is also done ... the last 3 months of pregnancy to predict Graves disease in the baby. The TSI test is most ...

  14. Genomic Testing

    MedlinePLUS

    ... of Page The Need for Reliable Information on Genetic Testing In 2008, the former Secretary's Advisory Committee on ... this database. Top of Page Learn More About Genetic Testing For Consumers Frequently Asked Questions About Genetic Testing, ...

  15. Magnesium Test

    MedlinePLUS

    ... Mg; Mag Formal name: Magnesium Related tests: Calcium , Potassium , Phosphorus , PTH , Vitamin D At a Glance Test ... of abnormal levels of magnesium, calcium and/or potassium When to Get Tested? When you have symptoms ...

  16. Testing the FSI Testing Kit.

    ERIC Educational Resources Information Center

    Frith, James R.

    1979-01-01

    Ten colleges and universities and the Educational Testing Service participated in a project that involved testing the Foreign Service Institute's French and Spanish oral proficiency test for possible academic applicability. (AM)

  17. ACES: a time and frequency mission for the International Space Station

    Microsoft Academic Search

    S. Feltham; F. Gonzalez; P. Puech

    1999-01-01

    ACES (Atomic Clock Ensemble in Space) was selected by ESA as a candidate express pallet adapter payload. Part of the early utilisation phase of the International Space Station, Express Pallet Adapters are specific external locations dedicated to the accommodation of small instruments and experiments. ACES tests a new generation of micro-gravity clocks with frequency stability in the range 10-16 to

  18. Testing Services

    NASA Technical Reports Server (NTRS)

    1993-01-01

    Trace Laboratories is an independent testing laboratory specializing in testing printed circuit boards, automotive products and military hardware. Technical information from NASA Tech Briefs and two subsequent JPL Technical Support packages have assisted Trace in testing surface insulation resistance on printed circuit board materials. Testing time was reduced and customer service was improved because of Jet Propulsion Laboratory technical support packages.

  19. Blood Tests

    MedlinePLUS

    ... your vital signs (blood pressure, breathing, pulse, and temperature), and results from other tests and procedures. Outlook Blood tests have few risks. Most complications are minor and go away shortly after the tests are done. Rate This Content: Next >> January 6, 2012 Blood Tests ...

  20. Software Testing using Test Sheets

    Microsoft Academic Search

    Colin Atkinson; Florian Barth; Daniel Brenner

    2010-01-01

    Although testing is one of the most important activities in software development, especially in projects which emphasize agile development, the basic approach used to define and report tests has changed little since JUnit was introduced over a decade ago. JUnit and its derivatives such as NUnit significantly simplify the task of programming tests but still leave the test logic tangled

  1. Syphilis Test

    MedlinePLUS

    ... called a dark-field microscope. Molecular testing (polymerase chain reaction, PCR)--this test detects genetic material from ... syphilis is made. Not applicable Not applicable Polymerase chain reaction (PCR) Detects genetic material of bacteria in ...

  2. Potassium Test

    MedlinePLUS

    ... Is any test preparation needed to ensure the quality of the sample? No test preparation is needed. ... legumes) and other foods such as nuts and seeds are good sources of potassium. ^ Back to top ...

  3. Prenatal Tests

    MedlinePLUS

    ... see if he has certain genetic conditions, like Down syndrome . You can have this test after 10 weeks ... see if he has a genetic condition, like Down syndrome . The test usually is done between 10 and ...

  4. Sweat Test

    MedlinePLUS

    ... At a Glance Why Get Tested? To diagnose cystic fibrosis (CF) When to Get Tested? When a person ... balance. This movement occurs through a protein , the cystic fibrosis transmembrane conductance regulator (CFTR), that serves as a ...

  5. Stool Tests

    MedlinePLUS

    ... For Kids For Parents MORE ON THIS TOPIC E. Coli Giardiasis Yersiniosis Stool Test: Ova and Parasites (O& ... H. Pylori Antigen Stool Test: Bacteria Culture Diarrhea E. Coli Contact Us Print Additional resources Send to a ...

  6. Testosterone Test

    MedlinePLUS

    ... cause of masculine physical features ( virilization ), infertility, or polycystic ovary syndrome (PCOS) When to Get Tested? For males, when you ... of other conditions, such as polycystic ovarian syndrome (PCOS) . ^ Back to top What does the test result ...

  7. Triglycerides Test

    MedlinePLUS

    ... Cholesterol ; LDL Cholesterol ; Direct LDL Cholesterol ; VLDL Cholesterol ; Lipid Profile ; Cardiac Risk Assessment At a Glance Test Sample ... When to Get Tested? As part of a lipid profile during a regular medical exam (at least once ...

  8. Allergy Testing

    MedlinePLUS

    ... for adults and children of all ages. The allergen extracts or vaccines used in allergy tests performed ... your medical history. Types of Allergy Tests Different allergens bother different people, so your allergist will determine ...

  9. Rubella Test

    MedlinePLUS

    ... rubella, such as fever and rash; when a newborn shows signs of abnormal development or birth defects ... heelprick or from the umbilical cord of a newborn Test Preparation Needed? None The Test Sample What ...

  10. TORCH Test

    MedlinePLUS

    ... Epstein-Barr virus , varicella-zoster virus , and human parvovirus . How is the sample collected for testing? A ... Epstein-Barr virus , varicella-zoster virus , and human parvovirus . See Pregnancy and Screening Tests for Newborns: Infectious ...

  11. Pregnancy Tests

    MedlinePLUS

    ... doctor how many weeks you are pregnant. A qualitative hCG blood test checks to see whether the ... doctor how many weeks you are pregnant. A qualitative hCG blood test checks to see whether the ...

  12. Fibrinogen Test

    MedlinePLUS

    ... PTT , D-dimer , Coagulation Factors , Thrombin Time , hs-CRP At a Glance Test Sample The Test Common ... cardiac risk markers such as C-reactive protein (CRP) to help determine a person's overall risk of ...

  13. Copper Test

    MedlinePLUS

    ... page: Was this page helpful? Also known as: Cu; 24-hour urine copper; Total copper; Non-ceruloplasmin-bound copper; Free copper; Hepatic copper Formal name: Copper (24-hour urine, total and free blood, and hepatic) Related tests: Ceruloplasmin ; Heavy Metals At a Glance Test Sample The Test Common ...

  14. Teacher Testing.

    ERIC Educational Resources Information Center

    Dunn, Judy; And Others

    1987-01-01

    A one-page introduction is followed by summaries of articles and documents on teacher competency testing. George F. Madaus argues that, although tests serve some useful functions, treating them as a major mechanism for reforming education is questionable. Peter A. Garcia examines the negative impact of testing on minority teachers and minorities…

  15. Tested Demonstrations.

    ERIC Educational Resources Information Center

    Gilbert, George L., Ed.

    1988-01-01

    Describes three flame test demonstrations including "Student-Presented Demonstrations on the Colors of Transition Metal Complexes,""A Flame Test Demonstration Device," and "Vivid Flame Tests." Preparation and procedures are discussed. Included in the first demonstration is an evaluation scheme for grading student demonstrations. (CW)

  16. Chlamydia Test

    MedlinePLUS

    ... hours before testing vaginal samples, as they may affect test results. You may be instructed to wait one to two hours after you last urinated before collecting a urine sample. Follow any instructions you are given. The Test How is it used? When is it ordered? What ...

  17. Schilling test

    MedlinePLUS

    Vitamin B12 absorption test ... This test may be done in four different stages to find the cause of a low vitamin B12 level. ... can absorb vitamin B12. Stage II of the test can tell whether a low vitamin B12 level ...

  18. Scenario Testing

    NSDL National Science Digital Library

    Cem Kaner

    2011-06-01

    This subset of the Black Box Software Testing collection includes resources to teach Scenario Testing. The scenario test involves a story about how the program is used, including information about the motivations of the people involved. The Soap Opera emphasizes the human issues, even beyond the traditional scenario. Resources include lecture videos, slides, activities, suggested readings, and study guide materials.

  19. Prenatal Testing

    MedlinePLUS

    Prenatal testing provides information about your baby's health before he or she is born. Some routine tests during pregnancy also check on your health. At your first prenatal visit, your healthcare provider will test for a number of things, including problems with your blood, signs ...

  20. Odor test

    NASA Technical Reports Server (NTRS)

    Schluter, L. A.; Pippen, D. L.

    1971-01-01

    To prevent the use of spacecraft material that would outgas objectionable or nauseating odors, an odor test was developed. This test provided a means whereby candidate spacecraft materials were subjected to a particular environment and the outgassed products were evaluated by an odor panel. This panel was comprised of individuals with acute olfactory senses. The test results of the odor panel provided design engineers with data regarding potential material-odor problems. The odor-test procedure, panel-member selection, and odor scoring methods are described and typical test results are presented.

  1. Exploratory Testing

    NSDL National Science Digital Library

    Cem Kaner

    2011-06-01

    This subset of the Black Box Software Testing collection includes resources to teach Exploratory Testing. Software testing is a technical investigation conducted to provide stakeholders with empirical information about the quality of a software product, system or service. The investigation includes research necessary to design information-revealing tests and interpret their results, building tools and data sets to make those tests possible, and communication necessary to report results to stakeholders in an effective way. Like any skilled tester, the explorer does all of these. The difference is that the explorer does them in any sequence that is useful, mixing research, design, execution, interpretation, and communication so as to keep exposing new information and keep up with the ongoing changes in market, platform, design, and implementation of the software under test. Resources include lecture videos, slides, activities, and suggested readings.

  2. Intelligence Testing

    Microsoft Academic Search

    R. W. Kamphaus; Cecil R. Reynolds; Katie King Vogel

    Much has changed in intelligence testing technology and application since the time of Binet's (1905) breakthrough. Prior to\\u000a Wechsler's innova tion of measuring verbal and “performance” abilities on a common test, intelligence tests of the first half\\u000a of the 20th century typically offered one composite score and focused on assessment of the general intelligence construct.\\u000a Edgar Doll (1953) identified the

  3. Test Comparability

    E-print Network

    Keller, Christine; Shulenburger, David E.

    2010-01-01

    , and written communication, as well as the organizations’ willingness to use a similar methodology to compute and report scores. The Test Validity Study (TVS) was conducted to gather more information about the comparability of the results across tests... and to mitigate concerns among some VSA institutions that it would be possible to “game” the results if one test consistently produced higher scores than the other two. The TVS results demonstrated that gaming concerns were largely unwarranted and provided...

  4. Diffuser Test

    NASA Technical Reports Server (NTRS)

    2007-01-01

    Tests begun at Stennis Space Center's E Complex Sept. 13 evaluated a liquid oxygen lead for engine start performance, part of the A-3 Test Facility Subscale Diffuser Risk Mitigation Project at SSC's E-3 Test Facility. Phase 1 of the subscale diffuser project, completed Sept. 24, was a series of 18 hot-fire tests using a 1,000-pound liquid oxygen and gaseous hydrogen thruster to verify maximum duration and repeatability for steam generation supporting the A-3 Test Stand project. The thruster is a stand-in for NASA's developing J-2X engine, to validate a 6 percent scale version of A-3's exhaust diffuser. Testing the J-2X at altitude conditions requires an enormous diffuser. Engineers will generate nearly 4,600 pounds per second of steam to reduce pressure inside A-3's test cell to simulate altitude conditions. A-3's exhaust diffuser has to be able to withstand regulated pressure, temperatures and the safe discharge of the steam produced during those tests. Before the real thing is built, engineers hope to work out any issues on the miniature version. Phase 2 testing is scheduled to begin this month.

  5. [HIV tests].

    PubMed

    Yoshimura, Yukihiro; Techikawa, Natsuo

    2008-11-01

    In the care and treatment of HIV-infected patients, several laboratory methods are indispensable. The diagnosis of HIV infection is established by one of the following methods: detecting antibodies to the virus; detecting the viral p24 antigen; detecting viral nucleic acid; or culturing HIV. The most widely used test is the detection of antibodies to HIV. Rapid serological tests take only 15 minutes for all procedures and are very useful in clinical settings. The rapid saliva test has also been developed, but is not available in Japan. Recently, some serological test kits have become commercially available via websites. Thus, people can perform tests by themselves without visiting testing facilities, with samples being sent by post. The CD4 T-cell count is the most important marker to determine when to start anti-HIV drugs. In addition, resistance testing should be used to guide the selection of the antiretroviral regimen in both treatment-naïve and -experienced patients. The following tests are still experimental but very important: HLA-B*5701 testing should be performed prior to the initiation of abacavir. Recent studies have revealed that HLA-B*5701 is strongly associated with the abacavir hypersensitivity reaction. However, fortunately, Japanese rarely have HLA-B*5701. The viral tropism assay should be performed prior to the initiation of the CCR5 antagonist. PMID:19086458

  6. Crushing Test

    NSDL National Science Digital Library

    James H. Kessler

    2007-01-01

    In this activity, learners design a crushing test and discover that identifying and controlling the variables may be difficult. Although the crushing test will not give conclusive results, it is a good opportunity to discuss variables and why they are sometimes difficult to control. This crushing test is also a good example of how a particular test does not always give enough information to answer a question. This is a follow-up to the activity called "Curious Crystals," in which learners investigate crystals and their properties to identify an unknown crystal.

  7. Performance tests.

    PubMed Central

    Wetherell, A

    1996-01-01

    This paper discusses the use of psychological performance tests to assess the effects of environmental stressors. The large number and the variety of performance tests are illustrated, and the differences between performance tests and other psychological tests are described in terms of their design, construction, use, and purpose. The stressor emphasis is on the effects of drugs since that is where most performance tests have found their main application, although other stressors, e.g., fatigue, toxic chemicals, are mentioned where appropriate. Diazepam is used as an example. There is no particular performance emphasis since the tests are intended to have wide applicability. However, vehicle-driving performance is discussed because it has been the subject of a great deal of research and is probably one of the most important areas of application. Performance tests are discussed in terms of the four main underlying models--factor analysis, general information processing, multiple resource and strategy models, and processing-stage models--and in terms of their psychometric properties--sensitivity, reliability, and content, criterion, construct, and face validity. Some test taxonomies are presented. Standardization is also discussed with reference to the reaction time, mathematical processing, memory search, spatial processing, unstable tracking, verbal processing, and dual task tests used in the AGARD STRES battery. Some comments on measurement strengths and appropriate study designs and methods are included. PMID:9182033

  8. Laboratory Tests

    MedlinePLUS

    ... factors can affect test results, including: sex age race medical history general health specific foods drugs you are taking how closely your follow preparatory instructions variations in laboratory ...

  9. Drug Testing.

    ERIC Educational Resources Information Center

    Legal Memorandum, 1987

    1987-01-01

    A number of legal issues are involved in conducting a drug testing program to determine whether students--and occasionally teachers--are using illegal drugs. Two legal issues have been raised concerning the accuracy of the urinalysis test: whether it is chemically accurate and whether appropriate procedures have been followed to make certain that…

  10. Tensilon test

    MedlinePLUS

    ... If you have weakness of the eye or face muscles, the effect of the Tensilon on this will also be monitored. The test may be repeated and you may have other Tensilon tests to help tell the difference between myasthenia gravis and other conditions.

  11. Star calibration of the pallet inertial sensor assembly for the high-altitude balloon experiment

    Microsoft Academic Search

    Sean L. Borror

    1995-01-01

    A gyroscope star calibration algorithm developed for use in the High- Altitude Balloon Experiment, a program to resolve acquisition, tracking, and pointing\\/fire control issues in support of future directed energy programs, is presented. The initial acquisition of a target from a free- floating balloon platform necessitates an inertial pointing capability. Gyroscopes are normally used to measure angular rotations with respect

  12. Star calibration of the pallet inertial sensor assembly for the High-Altitude Balloon Experiment

    NASA Astrophysics Data System (ADS)

    Borror, Sean L.

    1995-05-01

    A gyroscope star calibration algorithm developed for use in the High- Altitude Balloon Experiment, a program to resolve acquisition, tracking, and pointing/fire control issues in support of future directed energy programs, is presented. The initial acquisition of a target from a free- floating balloon platform necessitates an inertial pointing capability. Gyroscopes are normally used to measure angular rotations with respect to an inertial reference frame. Given an initial attitude, the gyro measurements can be used to determine the attitude at any later time. For the High Altitude Balloon Experiment, GPS and a magnetometer are used to provide an initial estimate of the payload attitude. This paper describes a deterministic algorithm, which uses star sensors measurements to correct initial attitude uncertainty errors. In addition, a simple method for measuring gyro bias in flight is presented. The consequences of star sensor to gyro frame misalignment are examined for both rate gyros and angular pulse output gyros. This paper describes the algorithm used to meet the calibration accuracy required to inertial pointing of the gimbaled payload.

  13. The Diamond Pallets of John Harrison's Fourth Longitude Timekeeper—H4

    Microsoft Academic Search

    Jonathan Hird; Jonathan Betts; Derek Pratt

    2008-01-01

    John Harrison (1693–1776) is regarded as the father of chronometry. During his lifetime, he relentlessly pursued one of humankind's greatest and oldest challenges—that of finding the longitude at sea. In succeeding (according to the rules dictated by an Act of Parliament), he bequeathed to humankind the most accurate portable timekeeper the world had ever seen. It is a remarkable fact

  14. Automatic Sprinkler Protection of Palletized, 55 Gallon Drum Storage of Unsaturated Polyester Resins

    Microsoft Academic Search

    Joseph L. Scheffey; Jeffrey M. Shapiro

    2006-01-01

    Unsaturated polyester resin (UPR) is used extensively in the production of composite plastic materials, such as fiberglass\\u000a products. UPRs are classified by NFPA 30 as Class I flammable liquids, often Class IC, based on their styrene content. However,\\u000a because UPR is a viscous liquid with a low vapor pressure and a high-density, it was postulated that UPR stored in drums

  15. Hypothesis Testing

    NSDL National Science Digital Library

    Siegrist, Kyle

    Created by Kyle Siegrist of the University of Alabama-Huntsville, this is an online, interactive lesson on hypothesis testing. The author provides examples, exercises, and applets about the concept. These include tests in the normal model, Bernoulli Model and two-sample normal model as well as likelihood ratio and goodness of fit tests. Additionally, the author provides a set of external resources for students looking to further their study of this topic. This is simply one of seventeen different statistics lessons provided by the author. They are easily accessed as this site is formatted much like an online textbook.

  16. Patch tests*

    PubMed Central

    Lazzarini, Rosana; Duarte, Ida; Ferreira, Alessandra Lindmayer

    2013-01-01

    Patch tests were introduced as a diagnostic tool in the late nineteenth century. Since then, they have improved considerably becoming what they are today. Patch tests are used in the diagnostic investigation of contact dermatitis worldwide. Batteries or series previously studied and standardized should be used in patch testing. The methodology is simple, but it requires adequate training for the results to be correctly interpreted and used. Despite having been used for over a century, it needs improvement like all other diagnostic techniques in the medical field. PMID:24474094

  17. AMA Test

    MedlinePLUS

    ... Smooth muscle antibodies (SMA) Antinuclear antibodies (ANA) Alkaline phosphatase (ALP) IgM level Bilirubin Albumin Prothrombin time (PT) ... a liver panel (elevated liver enzymes), especially alkaline phosphatase (ALP) . An AMA or AMA-M2 test may ...

  18. String test

    MedlinePLUS

    Duodenal parasites test ... under the microscope to look for cells and parasites or parasite eggs. ... health care provider suspects that you have a parasite infection, but no parasites were found in a ...

  19. Tested Demonstrations.

    ERIC Educational Resources Information Center

    Gilbert, George L.

    1990-01-01

    Included are three demonstrations that include the phase change of ice when under pressure, viscoelasticity and colloid systems, and flame tests for metal ions. The materials, procedures, probable results, and applications to real life situations are included. (KR)

  20. Susceptibility Testing

    MedlinePLUS

    ... group A streptococcus) that can be treated with penicillin. Susceptibility testing is performed on each type of ... that causes strep throat, can be treated with penicillin, so these types of infections may be treated ...

  1. Toxoplasma test

    MedlinePLUS

    ... Toxoplasma gondii . The parasite causes an infection called toxoplasmosis . The infection is a danger to a developing ... the health care provider suspects that you have toxoplasmosis. In pregnant women, the test is done to: ...

  2. Bernstein test

    MedlinePLUS

    Acid perfusion test ... your nose and into your esophagus. Mild hydrochloric acid will be sent down the tube, followed by ... when the tube is put into place. The acid may cause symptoms of heartburn. Your throat may ...

  3. Bicarbonate Test

    MedlinePLUS

    ... identify or monitor an electrolyte imbalance or acid-base (pH) imbalance When to Get Tested? During a ... the body to help maintain the body's acid-base balance (pH) and secondarily to work with sodium , ...

  4. PTH Test

    MedlinePLUS

    ... Sephel PhD FACB MT(ASCP). Lab Tests Online adjunct board member. Director Clinical Pathology, VA TN Valley Healthcare System; Associate Professor Pathology, Microbiology, Immunology, Vanderbilt University School of Medicine. ...

  5. Calcium Test

    MedlinePLUS

    ... Sephel PhD FACB MT(ASCP). Lab Tests Online adjunct board member. Director Clinical Pathology, VA TN Valley Healthcare System; Associate Professor Pathology, Microbiology, Immunology, Vanderbilt University School of Medicine. ...

  6. Mono Test

    MedlinePLUS

    ... through http://emedicine.medscape.com . Accessed May 2009. Smith, D. S. (Updated 2008 September 3). Mononucleosis. MedlinePlus Medical ... medlineplus/ency/article/000591.htm . Accessed May 2009. Smith, D. S. (Updated 2008 September 3). Mononucleosis spot test. ...

  7. Urodynamic Testing

    MedlinePLUS

    ... conditions. These findings have important diagnostic and management implications. Continued improvement in urodynamic testing will help support ... reviewed by Michael Albo, M.D., University of California, San Diego, Medical School, and Holly E. Richter, ...

  8. Troponin test

    MedlinePLUS

    ... worse, but no other signs of a heart attack. (Angina is chest pain thought to be from a part of your heart not getting enough blood flow.) The troponin test may also be done to help detect and ...

  9. Permeability Test

    NSDL National Science Digital Library

    This resource from the Indian Institute of Technology Kanpur provides an outline of constant head and falling head permeability tests of soil. This is a great resource for anyone studying geology and soil science.

  10. Procalcitonin Test

    MedlinePLUS

    ... other tests such as a C-reactive protein (CRP) , blood culture , complete blood count (CBC) , or cerebrospinal ... October 2009. Barclay, L. (2009 February 9). Procalcitonin, CRP May Predict Serious Bacterial Infection in Febrile Infants. ...

  11. Recrystallization Test

    NSDL National Science Digital Library

    James H. Kessler

    2007-01-01

    In this activity, learners recrystallize substances from solutions and make observations about the resulting crystals. This test can help further identify the unknown. Two different methods for recrystallization are provided in this activity: an overnight method and a 1-hour to 3-hour method. This is a follow-up activity to the "Developing Tests to Distinguish Between Similar-Looking Liquids" activity from the same resource (see related resources).

  12. Testing theories

    NASA Astrophysics Data System (ADS)

    Casten, R. F.

    2015-03-01

    This paper discusses some simple issues that arise in testing models, with a focus on models for low energy nuclear structure. By way of simplified examples, we illustrate some dangers in blind statistical assessments, pointing out especially the need to include theoretical uncertainties, the danger of over-weighting precise or physically redundant experimental results, the need to assess competing theories with independent and physically sensitive observables, and the value of statistical tests properly evaluated.

  13. Testing Composites

    NASA Technical Reports Server (NTRS)

    1981-01-01

    A device for testing composites for strength characteristics has been developed by Acoustic Emission Technology Corporation. Called the Model 206AU, the system is lightweight and portable. It is comprised of three sections. The "pulser" section injects ultrasonic waves into the material under test. A receiver picks up the simulated stress waves as they pass through the material and relays the signals to the acoustic emission section, where they are electronically analyzed.

  14. Testing technology

    SciTech Connect

    Not Available

    1993-10-01

    This bulletin from Sandia National Laboratories presents current research highlights in testing technology. Ion microscopy offers new nondestructive testing technique that detects high resolution invisible defects. An inexpensive thin-film gauge checks detonators on centrifuge. Laser trackers ride the range and track helicopters at low-level flights that could not be detected by radar. Radiation transport software predicts electron/photon effects via cascade simulation. Acoustic research in noise abatement will lead to quieter travelling for Bay Area Rapid Transport (BART) commuters.

  15. Solubility Test

    NSDL National Science Digital Library

    James H. Kessler

    2007-01-01

    In this activity, learners apply a dissolving test to known crystals to identify the unknown. Since the unknown is chemically the same as one of the known crystals, it should dissolve similarly. By dissolving each of the crystals in the same amount of water and comparing the amount of crystal left behind, learners will gain some information about the possible identity of the unknown.

  16. Test Anxiety

    MedlinePLUS

    ... Balance My Part-Time Job With Schoolwork? Note-Taking Tips Homework Help 5 Ways to Make Online Research Easier How to Make Homework Less Work Writing a Paper How Much Sleep Do I Need? Studying for Tests Organizing Schoolwork & Assignments Contact Us Print Additional resources ...

  17. Prenatal Tests

    MedlinePLUS

    ... or a partner who does) have a family history of mental retardation (or a partner who does) Although your health care provider (who may be your OB-GYN, family doctor, or a certified nurse-midwife) may recommend these tests, it's ... partner have a family history of genetic problems, you may want to consult ...

  18. Diagnostic Testing

    ERIC Educational Resources Information Center

    Dessoff, Alan

    2008-01-01

    Assessing whether or not students learn what they are supposed to has long been part of the educational process, encouraged even more in recent years by mandates to meet federal No Child Left Behind requirements and state achievement standards. But unlike summative assessments, which rely mostly on end-of-year test scores to gauge student…

  19. Test Review

    NSDL National Science Digital Library

    Miss Cook

    2008-07-22

    Here are some activities to help study for a test covering systems of equations. Battleship Author: Alice Keeler Easy, Medium, Hard Battleship Rags to Riches (Who wants to be a Millionaire) Author: unknown Challenging requires students to solve some problems backwards) Rags to Riches Jepordary Author: Alice Keeler One and two player versions-includes systems of inequalities. Jepordary ...

  20. HIV Testing Frequency

    MedlinePLUS

    ... Testing : HIV Testing Frequency Translate Text Size Print HIV Testing Frequency Testing Frequency How often should you ... local health department for proper care and information. HIV Testing HIV Test Locations HIV Test Types HIV ...

  1. Microgrid Testing

    SciTech Connect

    Shirazi, M.; Kroposki, B.

    2012-01-01

    With the publication of IEEE 1574.4 Guide for Design, Operation, and Integration of Distributed Resource Island Systems with Electric Power Systems, there is an increasing amount of attention on not only the design and operations of microgrids, but also on the proper operation and testing of these systems. This standard provides alternative approaches and good practices for the design, operation, and integration of microgrids. This includes the ability to separate from and reconnect to part of the utility grid while providing power to the islanded power system. This presentation addresses the industry need to develop standardized testing and evaluation procedures for microgrids in order to assure quality operation in the grid connected and islanded modes of operation.

  2. Testing Understanding and Understanding Testing.

    ERIC Educational Resources Information Center

    Pedersen, Jean; Ross, Peter

    1985-01-01

    Provides examples in which graphs are used in the statements of problems or in their solutions as a means of testing understanding of mathematical concepts. Examples (appropriate for a beginning course in calculus and analytic geometry) include slopes of lines and curves, quadratic formula, properties of the definite integral, and others. (JN)

  3. Synthesis and Characterization of Magnesium-Silicon and Magnesium-Tin Solid Solutions for Thermoelectric Applications

    E-print Network

    Hu, Fang

    2012-07-16

    , uniaxial cold pressed into half inch pallets and then sintered by Direct Current-assisted hot pressing. Different synthesis conditions such as ball milling, sintering time, pressure, have been compared by SEM images and XRD tests analysis to figure out...

  4. Tests and Measurements - Non-Destructive Testing

    NSDL National Science Digital Library

    This site from SpaceTEC National Aerospace Technical Education Center presents materials on testing and measurements in the workplace. Topics covered include visual inspection, dye penetrant inspection, magnetic particle testing, eddy current testing, ultrasonic testing, and radiography.

  5. Nuclear stress test

    MedlinePLUS

    ... Persantine stress test; Thallium stress test; Stress test - nuclear; Adenosine stress test; Regadenoson stress test ... Thallium stress test is a nuclear imaging method that shows how well blood flows into the heart muscle, both at rest and during activity.

  6. Mononucleosis spot test

    MedlinePLUS

    Monospot test; Heterophile antibody test; Heterophile agglutination test; Paul-Bunnell test; Forssman antibody test ... The mononucleosis spot test is done when symptoms of mononucleosis are ... Fatigue Fever Large spleen (possibly) Sore throat Tender ...

  7. A1C test

    MedlinePLUS

    HbA1C test; Glycated hemoglobin test; Glycosylated hemoglobin test; Hemoglobin glycosylated test; Glycohemoglobin test ... have recently eaten does not affect the A1C test, so you do not need to fast to ...

  8. Prototype to Test WHY prototype to test

    E-print Network

    Prinz, Friedrich B.

    Prototype to Test METHOD WHY prototype to test HOW to prototype to test Prototyping to test or design space. The fundamental way you test your prototypes is by letting users experience them and react to them. In creating prototypes to test with users you have the opportunity to examine your solution

  9. Performance Testing

    NASA Technical Reports Server (NTRS)

    1991-01-01

    Systems Technology, Inc., Hawthorne, CA, developed an electronic Critical Tracking Task (CTT) system that analyzes and rates a subject's visual/motor responses for Ames Research Center. Originally applied to measuring the effects of long term confinement in the mid 1960's, the CTT system is now marketed as FACTOR 1000 by Performance Factors, Inc. Alameda, CA, under a licensing agreement with Systems Technology. The system is a non-invasive, self-administered test that takes less than a minute and detects impairment from a broad range of causes, including stress, fatigue, illness, drugs, or alcohol. It is used daily by Old Town Trolley Tours, San Diego, CA, to assess each driver's physical coordination skills prior to the start of each shift. FACTOR 1000 reduces liabilities and costs related to accidents, and costs less than one dollar per day per employee. Performance Factors is now BioFactors, Inc.

  10. DRUG TESTING PANEL & CUTOFF CONCENTRATIONS Initial Test Analyte Initial Test

    E-print Network

    DRUG TESTING PANEL & CUTOFF CONCENTRATIONS Initial Test Analyte Initial Test Cutoff Concentration/mL Cocaine Metabolites 150 ng/mL Benzoylecgonine 100 ng/mL Codeine 2000 ng/mL Opiate Metabolites: Codeine

  11. Test and Test Equipment Joshua Lottich

    E-print Network

    Patel, Chintan

    Test and Test Equipment Joshua Lottich CMPE 640 11/23/05 #12;Testing Verifies that manufactured chip meets design specifications. Cannot test for every potential defect. Modeling defects as faults allows for passing and failing of chips. Ideal test would capture all defects and pass only chips

  12. Test Preparation Options Free Test Prep Websites

    E-print Network

    Stowell, Michael

    Test Preparation Options Free Test Prep Websites ACT: http: http://www.collegeboard.com/student/testing/sat/prep_one/test.html http://www.number2.com://testprep.princetonreview.com/CourseSearch/Search.aspx?itemCode=17&productType=F&rid=1&zip=803 02 Test Prep Classes Front Range Community College: Classes

  13. Stool guaiac test

    MedlinePLUS

    Guaiac smear test; Fecal occult blood test - guaiac smear; Stool occult blood test - guaiac smear ... This test detects blood in the digestive tract. It may be done if: You are being screened or tested for colon cancer You ...

  14. Reimbursement for Genetic Testing

    MedlinePLUS

    Reimbursement for Genetic Testing You are here Home Testing & Services Testing for genetic conditions Reimbursement for Genetic Testing Testing for genetic ... insurance coverage and reimbursement process. Twitter YouTube RSS Genetics and Health How Genes Work Genes, Lifestyle, & Environment ...

  15. hCG Test (Pregnancy Test)

    MedlinePLUS

    ... sample drawn from a vein in your arm Test Preparation Needed? Do not drink large amounts of ... preparation is needed for a blood sample. The Test Sample What is being tested? Human chorionic gonadotropin ( ...

  16. Parameterized unit tests

    Microsoft Academic Search

    Nikolai Tillmann; Wolfram Schulte

    2005-01-01

    Parameterized unit tests extend the current industry practice of using closed unit tests defined as parameterless methods. Parameterized unit tests separate two concerns: 1) They specify the external behavior of the involved methods for all test arguments. 2) Test cases can be re-obtained as traditional closed unit tests by instantiating the parameterized unit tests. Symbolic execution and constraint solving can

  17. Combined Load Test Fixture

    NASA Technical Reports Server (NTRS)

    Baker, Donald J.

    2010-01-01

    A test fixture has been developed at NASA Langley Research Center that has the capability of applying compression load and shear load simultaneously to a test specimen. The test specimen size is 24-inches by 28-inches. This report describes the test specimen design, test specimen preparation, fixture assembly in the test machine, and a test operation plan.

  18. Field test collimators for testing FLIR systems

    Microsoft Academic Search

    Todd Johnson; Simon Sharon

    1990-01-01

    It is shown that returns to depot by the use of a field test collimator may be reduced significantly. Furthermore, if the field test collimator is made to be universal so that it can be used to test multiple forward looking infrared (FLIR) systems, it can result in further cost savings in the maintenance of FLIRs. The field test collimator

  19. Macro Testing: Unifying IC And Board Test

    Microsoft Academic Search

    F. P. M. Beenker; K. J. E. van Eerdewijk; R. B. W. Gerritsen; F. N. Peacock; M. van der Star

    1986-01-01

    Historically, IC testing and board testing have been considered two separate subjects. However, today's increasing complexity in both design and technology has given rise to a number of efforts to produce a consistent test strategy that smoothly couples both types of testing. This article describes one such effort by Philips, a design for testability methodology for semicustom VLSI circuits. The

  20. TEST STATION SALE OF PERFORMANCE TESTED BULLS

    E-print Network

    Tennessee, University of

    AS-B426 U T BULL TEST STATION SALE OF PERFORMANCE TESTED BULLS THURSDAY, JAN 19, 2012 12:00 NOON IN GREENEVILLE AND KNOXVILLE LIVESTOCK CENTER http://animalscience.ag.utk.edu/ #12;UT BULL TEST STATION SALE 12@utk.edu ** JR BULL SALE TO BE HELD MARCH 8, 2012 ** #12;UT BULL TEST STATION SALE 12 NOON (CST), THURSDAY JAN

  1. Tests, Testing, and Genuine School Reform

    ERIC Educational Resources Information Center

    Walberg, Herbert J., Ed.

    2011-01-01

    The pressing need to improve achievement in American schools is widely recognized. In "Tests, Testing, and Genuine School Reform," Herbert J. Walberg draws on scientific studies of tests and their uses to inform citizens, educators, and policy makers about well-established principles of testing, current problems, and promising evidence-based…

  2. 21 CFR 660.54 - Potency tests, specificity tests, tests for heterospecific antibodies, and additional tests for...

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...specificity tests, tests for heterospecific antibodies, and additional tests for nonspecific...specificity tests, tests for heterospecific antibodies, and additional tests for nonspecific...Specificity tests, tests for heterospecific antibodies, and additional tests for...

  3. Thyroid Function Tests

    MedlinePLUS

    ... on Endocrine and Metabolic Diseases : Thyroid Tests Thyroid Tests On this page: What is the thyroid? What ... Top ] Why do health care providers perform thyroid tests? Health care providers perform thyroid tests to assess ...

  4. Sweat electrolytes test

    MedlinePLUS

    Sweat test; Sweat chloride; Iontophoretic sweat test ... No special steps are needed before this test. ... The test is not painful. Some people have a tingling feeling at the site of the electrode. This feeling ...

  5. Testing for Kidney Disease

    MedlinePLUS

    ... and Kidney Disease Additional Kidney Information Testing for Kidney Disease Early kidney disease usually does not have signs ( ... how often you should be tested. Testing for Kidney Disease Overview Understanding GFR Understanding Urine Albumin Videos Testing ...

  6. Genetic Testing Laboratory Directory

    MedlinePLUS

    Genetic Testing Registry All GTR Tests Conditions/Phenotypes Genes Labs GeneReviews Advanced search for tests Search term Search ... us improve GTR! Feedback link About GTR ® The Genetic Testing Registry (GTR ® ) provides a central location for voluntary ...

  7. Visual acuity test

    MedlinePLUS

    Eye test - acuity; Vision test - acuity; Snellen test ... from your face. This will test your near vision. ... examination, particularly if there is a change in vision or a problem with vision. In children, the ...

  8. Bull Test ID 1077 2013 Florida Bull Test

    E-print Network

    Jawitz, James W.

    14th Annual Florida Bull Test #12;Bull Test ID 1077 2013 Florida Bull Test #12;Bull Test ID 1078 2013 Florida Bull Test #12;Bull Test ID 1079 2013 Florida Bull Test #12;Bull Test ID 1080 2013 Florida Bull Test #12;Bull Test ID 1081 2013 Florida Bull Test #12;Bull Test ID 1082 2013 Florida Bull Test #12

  9. Bull Test ID 1160 2013 Florida Bull Test

    E-print Network

    Jawitz, James W.

    Bull Test ID 1160 2013 Florida Bull Test #12;Bull Test ID 1161 2013 Florida Bull Test #12;Bull Test ID 1162 2013 Florida Bull Test #12;Bull Test ID 1163 2013 Florida Bull Test #12;Bull Test ID 1164 2013 Florida Bull Test #12;Bull Test ID 1165 2013 Florida Bull Test #12;Bull Test ID 1166 2013 Florida

  10. Bull Test ID 1181 2013 Florida Bull Test

    E-print Network

    Jawitz, James W.

    Bull Test ID 1181 2013 Florida Bull Test #12;Bull Test ID 1182 2013 Florida Bull Test #12;Bull Test ID 1183 2013 Florida Bull Test #12;Bull Test ID 1184 2013 Florida Bull Test #12;Bull Test ID 1185 2013 Florida Bull Test #12;Bull Test ID 1186 2013 Florida Bull Test #12;Bull Test ID 1187 2013 Florida

  11. Bull Test ID 1098 2013 Florida Bull Test

    E-print Network

    Jawitz, James W.

    Bull Test ID 1098 2013 Florida Bull Test #12;Bull Test ID 1099 2013 Florida Bull Test #12;Bull Test ID 1100 2013 Florida Bull Test #12;Bull Test ID 1101 2013 Florida Bull Test #12;Bull Test ID 1102 2013 Florida Bull Test #12;Bull Test ID 1103 2013 Florida Bull Test #12;Bull Test ID 1104 2013 Florida

  12. Bull Test ID 1140 2013 Florida Bull Test

    E-print Network

    Jawitz, James W.

    Bull Test ID 1140 2013 Florida Bull Test #12;Bull Test ID 1141 2013 Florida Bull Test #12;Bull Test ID 1142 2013 Florida Bull Test #12;Bull Test ID 1143 2013 Florida Bull Test #12;Bull Test ID 1144 2013 Florida Bull Test #12;Bull Test ID 1145 2013 Florida Bull Test #12;Bull Test ID 1146 2013 Florida

  13. Bull Test ID 1118 2013 Florida Bull Test

    E-print Network

    Jawitz, James W.

    Bull Test ID 1118 2013 Florida Bull Test #12;Bull Test ID 1119 2013 Florida Bull Test #12;Bull Test ID 1120 2013 Florida Bull Test #12;Bull Test ID 1121 2013 Florida Bull Test #12;Bull Test ID 1122 2013 Florida Bull Test #12;Bull Test ID 1123 2013 Florida Bull Test #12;Bull Test ID 1124 2013 Florida

  14. The Trouble with Testing.

    ERIC Educational Resources Information Center

    Lasden, Martin

    1985-01-01

    Discusses aspects of psychological testing as a job screening tool. Examines sampling errors, cumulative effect of bad tests, measurement of specific personality traits, test standards, using tests correctly, test validity, cut-off policies, demographic questions, and practical tips for taking such tests. (CT)

  15. Mutation testing in UTP

    Microsoft Academic Search

    Bernhard K. Aichernig; Jifeng He

    2009-01-01

    This paper presents a theory of testing that integrates into Hoare and He's Unifying Theory of Programming (UTP). We give test cases a denotational semantics by viewing them as specication predicates. This reformulation of test cases allows for relating test cases via renement to specications and programs. Having such a renement order that integrates test cases, we develop a testing

  16. Testing for HPV

    MedlinePLUS

    ... HPV test, what does it mean? Testing for HPV What’s the difference between a Pap test and an HPV test? A Pap test is used to find ... HPV is found. Should I be tested for HPV? If you are a woman under age 30 ...

  17. HIV Antibody Test

    MedlinePLUS

    ... next test to perform is a HIV-1 RNA test (nucleic acid amplification test, NAAT). If the HIV-1 RNA is positive, then the test is considered positive. ^ ... HIV-2 differentiation test and a DNA or RNA-based nucleic acid amplification test in persons with ...

  18. GED Testing Fact Sheet

    ERIC Educational Resources Information Center

    GED Testing Service, 2009

    2009-01-01

    This GED Testing fact sheet provides information on: (1) GED[R] Tests; (2) Versions and Editions of the GED Tests; (3) Earning a Credential; (4) GED Testing Service[R]; (5) History of the GED Tests; (6) Who Accepts the GED Credential; (7) Public/Private Partnership of GEDTS; (8) Renowned GED Credential Recipients; (9) GED Testing Numbers for 2008;…

  19. Does It Work? Test and Test Again

    NSDL National Science Digital Library

    IMPART RET Program, College of Information Science & Technology,

    Testing is critical to any design, whether the creation of new software or a bridge across a wide river. Despite risking the quality of the design, the testing stage is often hurried in order to get products to market. In this lesson, students focus on the testing phase of the software/systems design process. They start by exploring existing examples of program testing using the CodingBat website, which contains a series of problems and challenges that students solve using the Java programming language. Working in teams, students practice writing test cases for other groups' code, and then write test cases for a program before writing the program itself.

  20. LEP Readers: Standardized Testing versus Informal Testing.

    ERIC Educational Resources Information Center

    Skinner, Robert E.

    The merits and disadvantages of standardized and informal reading tests for limited English proficient readers are discussed. A growing reliance on standardized ("formal") tests due to their ease of administration and scoring is criticized because the tests are seen as: inadequate for describing students at high and low ends of the scale; not…

  1. CMVO Drug Testing Program Reasonable Suspicion Testing

    E-print Network

    Pilyugin, Sergei S.

    : _______________________________________________________________________________________ Motor skills: Trembling/Shaking ___ Restless/Agitated ____ Slow or exaggerated moves ____ InattentiveCMVO Drug Testing Program Reasonable Suspicion Testing CMVO Revised Suspicion Form (Revised 6/08) Guidelines for Reasonable Suspicion Drug and Alcohol Testing: A supervisor, trained in accordance with 49 CFR

  2. From Test Takers to Test Makers

    ERIC Educational Resources Information Center

    Smith, Kari

    2009-01-01

    As a classroom teacher, Kari Smith realized that traditional objective tests don't always assess what students actually know. But tests are so deeply embedded in the education system that it would be difficult to do away with them entirely. Smith decided to make tests into learning tools. In this article, Smith describes three strategies for…

  3. The Stimulus test stand

    SciTech Connect

    Christofek, L.; Rapidis, P.; Reinhard, A.; /Fermilab

    2005-06-01

    The Stimulus Test Stand was originally constructed and assembled for testing the SVX2 ASIC readout and then upgraded for SVX3 ASIC prototyping and testing. We have modified this system for SVX4 ASIC [1] prototype testing. We described the individual components below. Additional details for other hardware for SVX4 testing can be found in reference [2]. We provide a description of the Stimulus Test Stand used for prototype testing of the SVX4 chip.

  4. Satellite battery testing status

    NASA Technical Reports Server (NTRS)

    Haag, R.; Hall, S.

    1986-01-01

    Because of the large numbers of satellite cells currently being tested and anticipated at the Naval Weapons Support Center (NAVWPNSUPPCEN) Crane, Indiana, satellite cell testing is being integrated into the Battery Test Automation Project (BTAP). The BTAP, designed to meet the growing needs for battery testing at the NAVWPNSUPPCEN Crane, will consist of several Automated Test Stations (ATSs) which monitor batteries under test. Each ATS will interface with an Automation Network Controller (ANC) which will collect test data for reduction.

  5. Pyrovalve Blowby Tests

    NASA Technical Reports Server (NTRS)

    Saulsberry, Regor; Keddy, Christopher P.; Julien, Howard L.

    2003-01-01

    The NASA White Sands Test Facility (WSTF) was requested to perform pyrovalve blowby tests in support of the Mars Observer Propulsion and Corrective Actions Test Program. Fifty-three tests were conducted in an attempt to characterize the blowby of commercial pyrovalves. Those pyrovalves used on NASA spacecraft are well represented, and the test data reported provide a basis for evaluating the performance of similar valves in other propulsion systems. The three test series conducted are subsequently described. All testing was done in the same test facility, with periodic changes that enhanced the test methodology.

  6. Test-Taking Skills.

    ERIC Educational Resources Information Center

    Sabers, Darrell

    There are two types of skills needed to perform well on a standardized achievement test: (1) the cognitive ability or basic skill that the test is designed to measure, and (2) the ability to demonstrate that cognitive ability or basic skill within the test situation. Test-taking skills (sometimes referred to as test wiseness) are the skills needed…

  7. Testing for Design Faults

    Microsoft Academic Search

    Bernhard K. Aichernig; Jifeng He

    2005-01-01

    Existing theories of testing focus on verification. Their strategy is to cover a specification or a program text to a certain degree in order to raise the confidence in the correctness of a system under test. We take a dierent approach in the sense that we present a theory of fault-based testing. Fault-based testing uses test data designed to demonstrate

  8. Growth hormone stimulation test

    MedlinePLUS

    Arginine test; Arginine-GHRH test ... of re-inserting the needle each time.The test takes between 2 to 5 hours. The procedure ... eat for 10 to 12 hours before the test. Eating food can change the test results. Some ...

  9. CO2 blood test

    MedlinePLUS

    Bicarbonate test; HCO3-; Carbon dioxide test; TCO2; Total CO2; CO2 test - serum ... Many medicines can interfere with blood test results. Your health care provider will tell you if you need to stop taking any medicines before you have this test. Do ...

  10. Test Collection Bulletin.

    ERIC Educational Resources Information Center

    Horne, Eleanor V., Ed.

    This is a quarterly digest of information on tests located in the test collection of Educational Testing Service. In addition to the extensive library of tests and other measurement devices, it also includes a special Head Start test collection established to provide information about instruments for those engaged in research or project direction…

  11. Test Anxiety, Test Comfort and Student Achievement Test Performance.

    ERIC Educational Resources Information Center

    Fyans, Leslie J., Jr.

    The Illinois Inventory of Educational Progress (IIEP) Test Comfort Scale was administered and test results were studied in terms of student achievement and correlates of achievement. Using the revised, seven-item scale, it was determined that: in grade 4, there was no main significant effect for sex or ethnic differences, although Orientals and…

  12. Balloon launched decelerator test program: Post-test test report

    NASA Technical Reports Server (NTRS)

    Dickinson, D.; Schlemmer, J.; Hicks, F.; Michel, F.; Moog, R. D.

    1972-01-01

    Balloon Launched Decelerator Test (BLDT) flights were conducted during the summer of 1972 over the White Sands Missile Range. The purpose of these tests was to qualify the Viking disk-gap band parachute system behind a full-scale simulator of the Viking Entry Vehicle over the maximum range of entry conditions anticipated in the Viking '75 soft landing on Mars. Test concerns centered on the ability of a minimum weight parachute system to operate without structural damage in the turbulent wake of the blunt-body entry vehicle (140 deg, 11.5 diameter cone). This is the first known instance of parachute operation at supersonic speeds in the wake of such a large blunt body. The flight tests utilized the largest successful balloon-payload weight combination known to get to high altitude (120kft) where rocket engines were employed to boost the test vehicle to supersonic speeds and dynamic pressures simulating the range of conditions on Mars.

  13. Anthrax - blood test

    MedlinePLUS

    Anthrax serology test; Antibody test for anthrax; Serologic test for B. anthracis ... A normal result means no antibodies to the anthrax bacteria was seen in your blood sample. However, during the early stages of infection, your body may only ...

  14. Nuclear Stress Test

    MedlinePLUS

    ... rest (left) and during exercise (right) from a nuclear stress test. A nuclear stress test lets doctors see pictures of your ... the heart has any damaged or dead muscle. Nuclear stress tests can also give doctors information about ...

  15. CompareTests

    Cancer.gov

    CompareTests is an R package to estimate agreement and diagnostic accuracy statistics for two diagnostic tests when one is conducted on only a subsample of specimens. A standard test is observed on all specimens.

  16. Ketones urine test

    MedlinePLUS

    A negative test result is normal. Normal value ranges may vary slightly among different laboratories. Some labs use different measurements or test different samples. Talk to your doctor about the meaning of your specific test results.

  17. Protein urine test

    MedlinePLUS

    ... are common measurements for results of these tests. Normal value ranges may vary slightly among different laboratories. Some labs use different measurements or test different samples. Talk to your doctor about the meaning of your specific test results.

  18. Blood sugar test - blood

    MedlinePLUS

    ... mg/dL or higher often means you have diabetes. Your health care provider will order a fasting blood glucose, HbA1c test , or glucose tolerance test , depending on your random blood glucose test ...

  19. Estradiol blood test

    MedlinePLUS

    E2 test ... temporarily stop taking certain medicines that may affect test results. Be sure to tell your provider about ... helps prevent sperm from dying too early. This test may be ordered to check: How well your ...

  20. Sickle cell test

    MedlinePLUS

    Sickledex; Hgb S test ... This test is done to tell if a person has abnormal hemoglobin that causes sickle cell disease and sickle ... and no symptoms, or only mild ones. This test does not tell the difference between these two ...

  1. Thyroid Function Tests

    MedlinePLUS

    ... Organizations (PDF, 269 KB). Alternate Language URL Thyroid Tests Page Content On this page: What is the ... Top ] Why do health care providers perform thyroid tests? Health care providers perform thyroid tests to assess ...

  2. Dexamethasone suppression test

    MedlinePLUS

    DST; ACTH suppression test; Cortisol suppression test ... During this test, you will receive dexamethasone. This is a strong man-made (synthetic) glucocorticoid medication. Afterward, your blood is drawn ...

  3. Creatine phosphokinase test

    MedlinePLUS

    CPK test ... vein. The procedure is called a venipuncture . This test may be repeated over 2 or 3 days ... doctors determine which tissue has been damaged. This test may be used to: Diagnose heart attack Evaluate ...

  4. TB Screening Tests

    MedlinePLUS

    ... website will be limited. Search Help? TB Screening Tests Share this page: Was this page helpful? Also ... by needle from a vein in your arm. Test Preparation Needed? None The Test Sample What is ...

  5. Breath alcohol test

    MedlinePLUS

    Alcohol test - breath ... There are various brands of breath alcohol tests. Each one uses a different method to test the level of alcohol in the breath. The machine may be electronic or manual. One ...

  6. ALP isoenzyme test

    MedlinePLUS

    Alkaline phosphatase isoenzyme test ... anything for 10 to 12 hours before the test, unless your doctor tells you to do so. Many medicines can interfere with blood test results. Your health care provider will tell you ...

  7. Bone mineral density test

    MedlinePLUS

    BMD test; Bone density test; Bone densitometry; DEXA scan; DXA; Dual-energy x-ray absorptiometry; p-DEXA; Osteoporosis-BMD ... need to undress. This scan is the best test to predict your risk of fractures. Peripheral DEXA ( ...

  8. Understanding Your Tests

    MedlinePLUS

    ... in genetic testing will impact your healthcare. The World of Forensic Laboratory Testing This article explains what ... Testing This article provides an overview of the wide variety of samples that can be taken from ...

  9. Blood Test: Glucose

    MedlinePLUS

    ... Sports: Keeping Kids Safe Concussions: What to Know Blood Test: Glucose KidsHealth > Parents > Doctors & Hospitals > Medical Tests & Exams > Blood ... If You Have Questions What It Is A blood glucose test measures the amount of glucose (the main ...

  10. Allergy Testing for Children

    MedlinePLUS

    ... of allergy Allergy testing for sensitivity to specific allergens Allergy tests help your physician confirm allergies your ... allergy test pinpoints a reaction to a specific allergen(s), your health care provider also can use this ...

  11. Directed random testing

    E-print Network

    Pacheco, Carlos, Ph.D. Massachusetts Institute of Technology

    2009-01-01

    Random testing can quickly generate many tests, is easy to implement, scales to large software applications, and reveals software errors. But it tends to generate many tests that are illegal or that exercise the same parts ...

  12. Screening Tests for Women

    MedlinePLUS

    ... if you take medicine for high blood pressure. Gonorrhea test Get tested for gonorrhea if you are sexually active and at increased risk, pregnant or not pregnant. Get tested for gonorrhea if you are sexually active and at increased ...

  13. Tests for Reproductive Health

    MedlinePLUS

    ... see urinalysis). Active infection with the chlamydia bacteria. Gonorrhea test A swab is used to collect a ... urine sample is collected and tested (see urinalysis). gonorrhea bacteria. HIV test A sample of blood is ...

  14. Screening Tests for Women

    MedlinePLUS

    ... if you take medicine for high blood pressure. Gonorrhea test Get tested for gonorrhea if you are sexually active and at increased risk , pregnant or not pregnant. Get tested for gonorrhea if you are sexually active and at increased ...

  15. Tests Related to Pregnancy

    MedlinePLUS

    ... recurrent history of miscarriages 3. Prenatal genetic testing Prenatal testing happens while you are pregnant. It looks for ... baby is born. Your healthcare provider may suggest prenatal testing if: An ultrasound shows a possible genetic condition ...

  16. Sources of Test Information.

    ERIC Educational Resources Information Center

    Drummond, Robert J.

    1988-01-01

    Lists and discusses sources of employment test information, with special attention on information given to what will be valuable to employment and career counselors. Includes discussion of trends, standards for employment testing, and legal aspects of testing. (Author/ABL)

  17. Transient Pressure Test Article Test Program

    NASA Technical Reports Server (NTRS)

    Vibbart, Charles M.

    1989-01-01

    The Transient Pressure Test Article (TPTA) test program is being conducted at a new test facility located in the East Test Area at the National Aeronautics and Space Administration's (NASA's) Marshall Space Flight Center (MSFC) in Huntsville, Alabama. This facility, along with the special test equipment (STE) required for facility support, was constructed specifically to test and verify the sealing capability of the Redesigned Solid Rocket Motor (RSRM) field, igniter, and nozzle joints. The test article consists of full scale RSRM hardware loaded with inert propellant and assembled in a short stack configuration. The TPTA is pressurized by igniting a propellant cartridge capable of inducing a pressure rise rate which stimulates the ignition transient that occurs during launch. Dynamic loads are applied during the pressure cycle to simulate external tank attach (ETA) strut loads present on the ETA ring. Sealing ability of the redesigned joints is evaluated under joint movement conditions produced by these combined loads since joint sealing ability depends on seal resilience velocity being greater than gap opening velocity. Also, maximum flight dynamic loads are applied to the test article which is either pressurized to 600 psia using gaseous nitrogen (GN2) or applied to the test article as the pressure decays inside the test article on the down cycle after the ignition transient cycle. This new test facility is examined with respect to its capabilities. In addition, both the topic of test effectiveness versus space vehicle flight performance and new aerospace test techniques, as well as a comparison between the old SRM design and the RSRM are presented.

  18. Test Analysis Guidelines

    NASA Technical Reports Server (NTRS)

    Jeng, Frank F.

    2007-01-01

    Development of analysis guidelines for Exploration Life Support (ELS) technology tests was completed. The guidelines were developed based on analysis experiences gained from supporting Environmental Control and Life Support System (ECLSS) technology development in air revitalization systems and water recovery systems. Analyses are vital during all three phases of the ELS technology test: pre-test, during test and post test. Pre-test analyses of a test system help define hardware components, predict system and component performances, required test duration, sampling frequencies of operation parameters, etc. Analyses conducted during tests could verify the consistency of all the measurements and the performance of the test system. Post test analyses are an essential part of the test task. Results of post test analyses are an important factor in judging whether the technology development is a successful one. In addition, development of a rigorous model for a test system is an important objective of any new technology development. Test data analyses, especially post test data analyses, serve to verify the model. Test analyses have supported development of many ECLSS technologies. Some test analysis tasks in ECLSS technology development are listed in the Appendix. To have effective analysis support for ECLSS technology tests, analysis guidelines would be a useful tool. These test guidelines were developed based on experiences gained through previous analysis support of various ECLSS technology tests. A comment on analysis from an experienced NASA ECLSS manager (1) follows: "Bad analysis was one that bent the test to prove that the analysis was right to begin with. Good analysis was one that directed where the testing should go and also bridged the gap between the reality of the test facility and what was expected on orbit."

  19. Vendor System Vulnerability Testing Test Plan

    SciTech Connect

    James R. Davidson

    2005-01-01

    The Idaho National Laboratory (INL) prepared this generic test plan to provide clients (vendors, end users, program sponsors, etc.) with a sense of the scope and depth of vulnerability testing performed at the INL’s Supervisory Control and Data Acquisition (SCADA) Test Bed and to serve as an example of such a plan. Although this test plan specifically addresses vulnerability testing of systems applied to the energy sector (electric/power transmission and distribution and oil and gas systems), it is generic enough to be applied to control systems used in other critical infrastructures such as the transportation sector, water/waste water sector, or hazardous chemical production facilities. The SCADA Test Bed is established at the INL as a testing environment to evaluate the security vulnerabilities of SCADA systems, energy management systems (EMS), and distributed control systems. It now supports multiple programs sponsored by the U.S. Department of Energy, the U.S. Department of Homeland Security, other government agencies, and private sector clients. This particular test plan applies to testing conducted on a SCADA/EMS provided by a vendor. Before performing detailed vulnerability testing of a SCADA/EMS, an as delivered baseline examination of the system is conducted, to establish a starting point for all-subsequent testing. The series of baseline tests document factory delivered defaults, system configuration, and potential configuration changes to aid in the development of a security plan for in depth vulnerability testing. The baseline test document is provided to the System Provider,a who evaluates the baseline report and provides recommendations to the system configuration to enhance the security profile of the baseline system. Vulnerability testing is then conducted at the SCADA Test Bed, which provides an in-depth security analysis of the Vendor’s system.b a. The term System Provider replaces the name of the company/organization providing the system being evaluated. This can be the system manufacturer, a system user, or a third party organization such as a government agency. b. The term Vendor (or Vendor’s) System replaces the name of the specific SCADA/EMS being tested.

  20. CEQATR Thermal Test Overview

    NASA Technical Reports Server (NTRS)

    Balusek, Alan R.

    2009-01-01

    A thermal test overview of the Constellation Environmental Qualification and Acceptance Test Requirement (CEQATR) is presented. The contents include: 1) CEQATR Thermal Test Overview; 2) CxP Environments; 3) CEQATR Table 1.2-1; 4) Levels of Assembly; 5) Definitions for Levels of Assembly; 6) Hardware Applicability; 7) CEQATR Thermal-Related Definitions; 8) Requirements for unit-level thermal testing; 9) Requirements for major assembly level thermal testing; 10) General thermal testing requirements; 11) General thermal cycle, thermal vacuum profiles; 12) Test tolerances; 13) Vacuum vs Ambient; 14) Thermal Gradient; 15) Sequence of Testing; 16) Alternative Strategies; 17) Protoflight; 18) Halt/Hass; 19) Humidity; and 20) Tailoring.

  1. Color identification testing device

    NASA Technical Reports Server (NTRS)

    Brawner, E. L.; Martin, R.; Pate, W.

    1970-01-01

    Testing device, which determines ability of a technician to identify color-coded electric wires, is superior to standard color blindness tests. It tests speed of wire selection, detects partial color blindness, allows rapid testing, and may be administered by a color blind person.

  2. Testing Our Limits

    ERIC Educational Resources Information Center

    Tempel, Melissa Bollow

    2012-01-01

    Computerized testing, including the widely used MAP test, has infiltrated the public schools in Milwaukee and across the nation, bringing with it a frightening future for public education. High-stakes standardized tests can be scored almost immediately via the internet, and testing companies can now easily link districts to their online data…

  3. Continuous Testing in Eclipse

    Microsoft Academic Search

    David Saff; Michael D. Ernst

    2004-01-01

    Abstract: Continuous testing uses excess cycles on a developer's workstation to continuouslyrun regression tests in the background, providing rapid feedback about test failuresas source code is edited. It is intended to reduce the time and energy required tokeep code well-tested, and to prevent regression errors from persisting uncaught forlong periods of time.

  4. Language Testing in Japan.

    ERIC Educational Resources Information Center

    Brown, James Dean, Ed.; Yamashita, Sayoko Okada, Ed.

    Papers on second language testing in Japan include: "Differences Between Norm-Referenced and Criterion-Referenced Tests" (James Dean Brown); "Criterion-Referenced Test Construction and Evaluation" (Dale T. Griffe); "Behavioral Learning Objectives as an Evaluation Tool" (Judith A. Johnson); "Developing Norm- Referenced Tests for Program-Level…

  5. Locating Information about Tests.

    ERIC Educational Resources Information Center

    Wolf, Richard M.; Redl, Vera A.

    1985-01-01

    The authors describe sources of information about tests. They note the existence of test publishers' manuals, Mental Measurement Yearbooks (including online updates), Tests in Print, and computerized databases of the Educational Resources Information Center and the Educational Testing Service. An annotated list of compendia of instruments and…

  6. Coagulase Test Protocol

    NSDL National Science Digital Library

    American Society For Microbiology

    2010-11-11

    This protocol describes the history and procedures of the coagulase test.  The coagulase test isused to differentiate species of Staphylococcus, especially the coagulase-positive Staphylococcus aureus from coagulase-negative staphylococcal species.  Both common versions of the test, the slide method and the test tube method, are described, and the mechanisms of the reactions are discussed.

  7. Foundations of Software Testing

    NSDL National Science Digital Library

    Cem Kaner

    2011-06-01

    This subset of the Black Box Software Testing collection includes lecture videos, slides, suggested readings, and study questions focusing on the Foundations of Software Testing including: basic terminology, the mission of testing, the oracle problem, the measurement problem, the impossibility of complete testing, and relevant foundational concepts from the computer science field.

  8. Risk-Based Testing

    NSDL National Science Digital Library

    Cem Kaner

    2011-06-01

    This subset of the Black Box Software Testing collection includes resources to teach Risk-Based Testing. The essence of risk-based testing is to imagine how the product could fail and design tests to expose those potential failures. Key concepts include project-level risk analysis and failure mode and effects analysis. Resources include lecture videos, slides, activities, and suggested readings.

  9. Legal Issues in Testing.

    ERIC Educational Resources Information Center

    ERIC Clearinghouse on Tests, Measurement, and Evaluation, Princeton, NJ.

    This Digest overviews legal challenges in five areas of test use for decision-making in schools: ability tracking, placement in special education classes, test scores as college admissions criteria, test disclosure, and teacher competency testing. Cases illustrating these challenges are described and include: Hobson v. Hansen (1967), Moses v.…

  10. Language Testing: New Openings.

    ERIC Educational Resources Information Center

    Huhta, Ari, Ed.; And Others

    A collection of articles on second-language testing includes: "The State of Language Testing in the 1990s" (J. Charles Alderson); "The Exercise of Power and Control in the Rhetorics of Testing" (Elana Shohamy); "Institutional and Political Aspects of Language Testing" (Bernard Spolsky); "Language Planning Policy and Development of FL Proficiency…

  11. Uniform Test Assembly

    ERIC Educational Resources Information Center

    Belov, Dmitry I.

    2008-01-01

    In educational practice, a test assembly problem is formulated as a system of inequalities induced by test specifications. Each solution to the system is a test, represented by a 0-1 vector, where each element corresponds to an item included (1) or not included (0) into the test. Therefore, the size of a 0-1 vector equals the number of items "n"…

  12. High Stakes: Testing Irregularity

    ERIC Educational Resources Information Center

    Carson-Meyers, Tricia; Bryant, Edye Morris; Thomas, Fredrick; Brinson, Kenneth H., Jr.

    2005-01-01

    With the No Child Left Behind Act of 2001, a stronger emphasis has been placed on state testing and accountability at the state and local levels. The news media continues to report testing irregularities as professional and community pressures are levied on educators to increase test scores. Test scores have been tied to community affluence, real…

  13. Test Preparation: Your Role

    MedlinePLUS

    ... information about preparations needed for specific tests on web sites like Lab Tests Online. However, you should always follow your health ... may sometimes be elaborated on further on "The Test" tab. However, be sure ... on this or any other web site, as different labs may have varying testing ...

  14. Test Review: Cambridge Kindergarten Screening Test.

    ERIC Educational Resources Information Center

    Butler, Katherine G.

    1985-01-01

    Concludes that the lack of normative data, the suggestion that even one failure on the test (with approximately 111 items) makes a child suspect for "at risk" labelling, along with the brevity of directions and interpretation of data require that the test be used with great caution. (FL)

  15. Test the Nation: The National IQ Test

    NSDL National Science Digital Library

    Who is the weakest link? Or, rather, just how many are there? And where do they come from? Test the Nation, Britain's largest mass IQ test set about to answer those questions and more on May 11th of this year. Administered online to some 90,000 residents of the UK (and still available for those who missed out), the test put visitors through the usual rigors of intelligence testing. The Test the Nation Web site discloses how the nation did as a whole, with further breakdowns by region, age, and other variables. Curious, the map of Britain's intelligence, as determined by the test, clearly demonstrates that the South far outdid the North where brute IQ is concerned. Whether one accepts such results or not, the site provides much food for thought, discussion and, almost certainly, an argument or two. Presented by the BBC, the site doesn't stop with simple presentations on the national IQ test, but also offers other interesting studies and reports, with subjects probing various areas of intelligence testing and all that has been made of it. A short list of some of the titles presented include: What sex is your brain?, Birth weight and intelligence, and The Language of the brain. To round off it offerings, the site also links to MENSA.

  16. Spirotox Test — Spirostomum Ambiguum Acute Toxicity Test

    Microsoft Academic Search

    Grzegorz Na??cz-jawecki

    1. Objective and scope of the test method Protozoa play an important role in the environment as primary consumers. With bacteria they are major organisms in water self-purification systems. They are attractive in ecotoxicology due to their short life cycle, ease of culturing and high susceptibility to toxicants. The Spirotox test can be used as a screening tool for toxicity

  17. Testing: Let's Put It to the Test.

    ERIC Educational Resources Information Center

    Miller, Phyllis, Ed.

    2000-01-01

    In this journal issue, articles examine various aspects of testing intelligence, creativity, and psychopathology. Featured articles include: (1) "Monglottosis: What's Wrong with the Idea of IQ Meritocracy and Its Racy Cousins?" (Johan W. Oller, Jr.), which shows empirically and theoretically that even nonverbal IQ tests mainly measure powers of…

  18. Dtest Testing Software

    NASA Technical Reports Server (NTRS)

    Jain, Abhinandan; Cameron, Jonathan M.; Myint, Steven

    2013-01-01

    This software runs a suite of arbitrary software tests spanning various software languages and types of tests (unit level, system level, or file comparison tests). The dtest utility can be set to automate periodic testing of large suites of software, as well as running individual tests. It supports distributing multiple tests over multiple CPU cores, if available. The dtest tool is a utility program (written in Python) that scans through a directory (and its subdirectories) and finds all directories that match a certain pattern and then executes any tests in that directory as described in simple configuration files.

  19. Flight Test Engineering

    NASA Technical Reports Server (NTRS)

    Pavlock, Kate Maureen

    2013-01-01

    Although the scope of flight test engineering efforts may vary among organizations, all point to a common theme: flight test engineering is an interdisciplinary effort to test an asset in its operational flight environment. Upfront planning where design, implementation, and test efforts are clearly aligned with the flight test objective are keys to success. This chapter provides a top level perspective of flight test engineering for the non-expert. Additional research and reading on the topic is encouraged to develop a deeper understanding of specific considerations involved in each phase of flight test engineering.

  20. Spirometry: quantitative test criteria and test acceptability.

    PubMed

    Glindmeyer, H W; Jones, R N; Barkman, H W; Weill, H

    1987-08-01

    Quantitative test criteria have been developed to assess the acceptability of spirometric tracings. Most automated spirometers have been programmed with the criteria in order to assist in data collection. These instruments compare computed parameters from the collected tracings with the criteria and, after 3 acceptable FVC maneuvers have been collected, print out a statement indicating that "tests meet acceptability criteria." Technicians, nurses, and even their medical supervisors are beginning to rely on these statements as assuring overall test quality. However, a review of actual curves indicates that unacceptable results can be obtained from tests that comply with these standards. Although quantitative test criteria are a positive step toward quality assurance, they should be treated as they were developed, as "minimum" criteria. All curves should be inspected for visible defects, especially if the results are used to follow subjects longitudinally. PMID:3619205

  1. Skylab vibroacoustic test program

    NASA Technical Reports Server (NTRS)

    Jewell, R. E.

    1974-01-01

    Vibroacoustic testing was performed on the orbital workshop dynamic test article and the payload assembly, the two major elements of the Skylab payload. The testing was conducted on each of the Skylab elements separately in the reverberation chamber at the Johnson Space Center. The two test configurations were high fidelity flight article simulations. The testing was conducted in two phases; in the first phase, acoustic tests were performed at levels simulating the lift-off and atmospheric flight acoustic criteria. In the second phase, low frequency sinusoidal vibration tests were conducted to obtain modal response data. The objectives of the Skylab vibroacoustic test program were to: verify the vibration design and test criteria; qualify selected flight components to the vibroacoustic criteria; and verify analytical models used for dynamic load analyses. This paper describes the vibroacoustic testing and discusses the results.

  2. Testing the Teacher? Or Teaching the Test?

    NASA Astrophysics Data System (ADS)

    Moore, John W.

    2001-08-01

    Tests, including those written by someone other than the teacher, are a good thing. They provide one useful measure of the success of a student, course, teacher, or school. But too much of a good thing can cause serious, long-term harm. Let us resolve to use tests judiciously, thoughtfully, and appropriately, and to influence others to do the same.

    Literature Cited

    1. High Stakes Testing for Tracking, Promotion, and Graduation; Heubert, J. P.; Hauser, R. M., Eds.; National Academy Press: Washington, DC, 1999; (accessed Jun 2001).
    2. Steinberg, J.; Henriques, D. B. None of the Above; The New York Times May 21, 2001, p A1; May 22, 2001, p A1.
    3. Glenn, T.; Akin, M. Questioning Testing; School Administrator 1996, 53, 26.
    4. Klein, S. P.; Hamilton, L. S.; McCaffrey, D. F.; Stecher, B. M. What Do Test Scores in Texas Tell Us? Educ. Policy Anal. Arch. 2000, 8 (49); (accessed Jun 2001).
    5. Morris, B. R. School Testing Bandwagon Spawns Web Coaching Sites; The New York Times May 24, 2001, p D6.
    6. Goodnough, A. High Stakes of Fourth-Grade Tests Are Driving Off Veteran Teachers; The New York Times June 14, 2001, p A1.

    7. Entry/Exit Port testing, test report

      SciTech Connect

      Winkelman, R.H.

      1993-05-01

      The Waste Receiving and Processing Module I (WRAP-1) facility must have the ability to allow 55-gallon drums to enter and exit glovebox enclosures. An Entry/Exit Port (Appendix 1, Figure 1), designed by United Engineers and Constructors (UE&C), is one method chosen for drum transfer. The Entry/Exit Port is to be used for entry of 55-gallon drums into both process entry gloveboxes, exit of 55-gallon drum waste pucks from the low-level waste (LLW) glovebox, and loadout of waste from the restricted waste management glovebox. The Entry/Exit Port relies on capture velocity air flow and a neoprene seal to provide alpha confinement when the Port is in the open and closed positions, respectively. Since the glovebox is in a slight vacuum, air flow is directed into the glovebox through the space between the overpack drum and glovebox floor. The air flow is to direct any airborne contamination into the glovebox. A neoprene seal is used to seal the Port door to the glovebox floor, thus maintaining confinement in the closed position. Entry/Exit Port testing took place February 17, 1993, through April 14, 1993, in the 305 building of Westinghouse Hanford Company. Testing was performed in accordance with the Entry/Exit Port Testing Test Plan, document number WHC-SD-WO26-TP-005. A prototype Entry/Exit Port built at the Hanford Site was tested using fluorescent paint pigment and smoke candles as simulant contaminants. This test report is an interim test report. Further developmental testing is required to test modifications made to the Port as the original design of the Port did not provide complete confinement during all stages of operation.

    8. Thruster endurance test

      NASA Technical Reports Server (NTRS)

      Collett, C.

      1976-01-01

      A test system was built and several short term tests were completed. The test system included, in addition to the 30-cm ion thruster, a console for powering the thruster and monitoring performance, a vacuum facility for simulating a space environment, and a storage and feed system for the thruster propellant. This system was used to perform three short term tests (one 100-hour and two 500-hour tests), an 1108-hour endurance test which was aborted by a vacuum facility failure, and finally the 10,000-hour endurance test. In addition to the two 400 series thrusters which were used in the short term and 1100-hour tests, four more 400 series thrusters were fabricated, checked out, and delivered to NASA. Three consoles similar to the one used in the test program were also fabricated and delivered.

    9. Check for peroxides every 6 months. opened test 1 test 2 test 3

      E-print Network

      Pawlowski, Wojtek

      Check for peroxides every 6 months. opened test 1 test 2 test 3 date initials Check for peroxides every 6 months. opened test 1 test 2 test 3 date initials Check for peroxides every 6 months. Test strips can be obtained from EH&S, 5-8200 opened test 1 test 2 test 3 date initials Check for peroxides

    10. Automatic Test Factoring for Java

      E-print Network

      Saff, David

      2005-06-08

      Test factoring creates fast, focused unit tests from slow system-widetests; each new unit test exercises only a subset of the functionalityexercised by the system test. Augmenting a test suite with factoredunit tests ...

    11. Gene Testing for Hereditary Ataxia

      MedlinePLUS

      ... timing for testing. What are the purposes of genetic testing? Diagnostic testingTesting is performed when symptoms are ... implication of the results, and the alternatives to genetic testing. The reasons for seeking predictive testing, in particular, ...

    12. Materials Test Branch

      NASA Technical Reports Server (NTRS)

      Gordon, Gail

      2012-01-01

      The Materials Test Branch resides at Marshall Space Flight Center's Materials and Processing laboratory and has a long history of supporting NASA programs from Mercury to the recently retired Space Shuttle. The Materials Test Branch supports its customers by supplying materials testing expertise in a wide range of applications. The Materials Test Branch is divided into three Teams, The Chemistry Team, The Tribology Team and the Mechanical Test Team. Our mission and goal is to provide world-class engineering excellence in materials testing with a special emphasis on customer service.

    13. Rules for Optical Testing

      NASA Technical Reports Server (NTRS)

      Stahl, H. Philip

      2014-01-01

      Based on 30 years of optical testing experience, a lot of mistakes, a lot of learning and a lot of experience, I have defined seven guiding principles for optical testing - regardless of how small or how large the optical testing or metrology task: Fully Understand the Task, Develop an Error Budget, Continuous Metrology Coverage, Know where you are, Test like you fly, Independent Cross-Checks, Understand All Anomalies. These rules have been applied with great success to the inprocess optical testing and final specification compliance testing of the JWST mirrors.

    14. Tests of Halon 1301 test gas simulants

      NASA Astrophysics Data System (ADS)

      Carhart, H. W.; Leonard, J. T.; Dinenno, P. J.; Starchville, M. D.; Forssell, E. W.; Wong, J. T.

      1989-02-01

      All new and retrofit installations of Halon 1301 (CBrF3) total flooding fire protection systems in shipboard machinery spaces require full acceptance discharge test. It is desirable to use a suitable simulant test gas in these tests in view of current and future regulation of Halon 1301. Sulfur hexafluoride, SF6, and chlorodifluromethane R-22, were identified as candidate simulants on the basis of their similarity in physical properties to Halon 1301. These two candidates were then evaluated on the basis of leakage from an enclosure. SF6 was determined to be an excellent simulant for Halon 1301 when considering leakage from an enclosure. Further testing of SF6 and R-22 is planned for other important aspects of Halon 1301 systems, i.e., flow hydraulics, initial mixing.

    15. Testing and Diagnostic Testing in Mathematics

      ERIC Educational Resources Information Center

      Cresswell, M.

      1977-01-01

      The author outlines some of the ways in which published mathematics tests, particularly the general standardized type, can be used in a constructive way by teachers to learn more about their pupils. (MN)

    16. Wolf Testing: Open Source Testing Software

      NASA Astrophysics Data System (ADS)

      Braasch, P.; Gay, P. L.

      2004-12-01

      Wolf Testing is software for easily creating and editing exams. Wolf Testing allows the user to create an exam from a database of questions, view it on screen, and easily print it along with the corresponding answer guide. The questions can be multiple choice, short answer, long answer, or true and false varieties. This software can be accessed securely from any location, allowing the user to easily create exams from home. New questions, which can include associated pictures, can be added through a web-interface. After adding in questions, they can be edited, deleted, or duplicated into multiple versions. Long-term test creation is simplified, as you are able to quickly see what questions you have asked in the past and insert them, with or without editing, into future tests. All tests are archived in the database. Written in PHP and MySQL, this software can be installed on any UNIX / Linux platform, including Macintosh OS X. The secure interface keeps students out, and allows you to decide who can create tests and who can edit information already in the database. Tests can be output as either html with pictures or rich text without pictures, and there are plans to add PDF and MS Word formats as well. We would like to thank Dr. Wolfgang Rueckner and the Harvard University Science Center for providing incentive to start this project, computers and resources to complete this project, and inspiration for the project's name. We would also like to thank Dr. Ronald Newburgh for his assistance in beta testing.

    17. Nevada Test Site Sensor Test Facility

      SciTech Connect

      Gomez, B.J.; Boyer, W.B.

      1996-12-01

      A Sensor Test Facility (STF) was recently established at the Department of Energy`s Nevada Test Site (NTS). It has been used for a series of sensor tests that have demonstrated the usefulness of the testbed. The facility consists of a cut-and-cover bunker complex and the two square mile surrounding area. The STF was developed as a scientific testbed optimized for the development and evaluation of advanced sensor systems, including ground sensor systems designed to identify and detect hardened underground facilities. This was accomplished by identifying a facility in a remote location where seismic, acoustic, and electromagnetic interference would be minimal, establishing a testbed that would be accommodating to field testing, and conducting a thorough geophysical characterization of the area surrounding the facility in order to understand the local geology and its effects on geophysical signals emanating from the facility. The STF is representative of a number of cut-and-cover bunkers around the world that are used for the manufacture and/or storage of weapons of mass destruction. This paper provides a general description of the Nevada Test Site, the Sensor Test Facility, and the Geophysical Site Characterization.

    18. TESTING TESTS ON ACTIVE GALACTIC NUCLEI MICROVARIABILITY

      SciTech Connect

      De Diego, Jose A. [Instituto de Astronomia, Universidad Nacional Autonoma de Mexico, Ciudad Universitaria, Mexico City, DF 04510 (Mexico)

      2010-03-15

      Literature on optical and infrared microvariability in active galactic nuclei (AGNs) reflects a diversity of statistical tests and strategies to detect tiny variations in the light curves of these sources. Comparison between the results obtained using different methodologies is difficult, and the pros and cons of each statistical method are often badly understood or even ignored. Even worse, improperly tested methodologies are becoming more and more common, and biased results may be misleading with regard to the origin of the AGN microvariability. This paper intends to point future research on AGN microvariability toward the use of powerful and well-tested statistical methodologies, providing a reference for choosing the best strategy to obtain unbiased results. Light curves monitoring has been simulated for quasars and for reference and comparison stars. Changes for the quasar light curves include both Gaussian fluctuations and linear variations. Simulated light curves have been analyzed using {chi}{sup 2} tests, F tests for variances, one-way analyses of variance and C-statistics. Statistical Type I and Type II errors, which indicate the robustness and the power of the tests, have been obtained in each case. One-way analyses of variance and {chi}{sup 2} prove to be powerful and robust estimators for microvariations, while the C-statistic is not a reliable methodology and its use should be avoided.

    19. Morpheus Vertical Test Bed Flight Testing

      NASA Technical Reports Server (NTRS)

      Hart, Jeremy; Devolites, Jennifer

      2014-01-01

      NASA's Morpheus Project has developed and tested a prototype planetary lander capable of vertical takeoff and landing, that is designed to serve as a testbed for advanced spacecraft technologies. The lander vehicle, propelled by a LOX/Methane engine and sized to carry a 500kg payload to the lunar surface, provides a platform for bringing technologies from the laboratory into an integrated flight system at relatively low cost. Morpheus onboard software is autonomous from ignition all the way through landing, and is designed to be capable of executing a variety of flight trajectories, with onboard fault checks and automatic contingency responses. The Morpheus 1.5A vehicle performed 26 integrated vehicle test flights including hot-fire tests, tethered tests, and two attempted freeflights between April 2011 and August 2012. The final flight of Morpheus 1.5A resulted in a loss of the vehicle. In September 2012, development began on the Morpheus 1.5B vehicle, which subsequently followed a similar test campaign culminating in free-flights at a simulated planetary landscape built at Kennedy Space Center's Shuttle Landing Facility. This paper describes the integrated test campaign, including successes and setbacks, and how the system design for handling faults and failures evolved over the course of the project.

    20. ECN Pressure Test

      SciTech Connect

      Dixon, K.; /Fermilab

      1991-07-18

      This note describes: the rationale for the test pressure of the inner ECN cryostat vessel, the equipment to be used in this test, the test procedure, the status of the vessel prior to the test, the actual test results, and a schematic diagram of the testing set up and the pressure testing permit. The test, performed in the evening of July 17, 1991, was a major success. Based on a neglible pressure drop indicated on the pressure gages (1/4 psi), the vessel appeared to be structurally sound throughout the duration of the test (approx. 1.5 hrs.). No pressure increases were observed on the indicators looking at the beam tube bellows volumes. There was no indication of bubbles form the soap test on the welds and most of the fittings that were checked. There were some slight deviations in the actual procedure used. The UO filter was removed after the vessel had bled down to about 18 psig in order to speed up that aspect of the test. The rationale was that the higher velocity gas had already passed through at the higher pressures and there was no visible traces of the black uo particles. The rate of 4 psi/10 minutes seemed incredibly slow and often that time was reduced to just over half that rate. The testing personnel was allowed to stay in the pit throughout the duration of the test; this was a slight relaxation of the rules.

    21. ALP (Alkaline Phosphatase) Test

      MedlinePLUS

      ... known as: ALK PHOS; Alkp Formal name: Alkaline Phosphatase Related tests: AST ; ALT ; GGT ; Bilirubin ; Liver Panel ; Bone Markers ; Alkaline Phosphatase Isoenzymes; Bone Specific ALP At a Glance Test ...

    22. CSD skin test

      MedlinePLUS

      Cat scratch disease skin test ... cat scratch disease is injected just under the skin. After 48 to 72 hours, a health care ... no special preparation. People with dermatitis or other skin irritations should have the test performed on an ...

    23. Urine Tests (For Parents)

      MedlinePLUS

      ... Lessons? Visit KidsHealth in the Classroom What Other Parents Are Reading Measles: What to Know Vaccines: FAQs ... Precautions Checkups: What to Expect Urine Tests KidsHealth > Parents > General Health > Sick Kids > Urine Tests Print A ...

    24. Get Tested for HIV

      MedlinePLUS

      ... a counselor. You do not have to give your name. You will receive an ID number to use ... some states, you can get tested without giving your name, if you prefer. This is called "anonymous" testing. ...

  1. Blood gases test (image)

    MedlinePLUS

    ... an artery. The test is used to evaluate respiratory diseases and conditions that affect the lungs, and it is used to determine the effectiveness of oxygen therapy. The acid-base component of the test also ...

  2. Flexseal Insulator Test Assembly

    NASA Technical Reports Server (NTRS)

    Buchanan, Eric

    1995-01-01

    Small-scale version of solid-fuel rocket motor flexseal nozzle bearing assembly instrumented and tested in compression-testing fixture simulating conditions during rocket motor operation described in report.

  3. Osmolality - blood test

    MedlinePLUS

    This test helps check your body's water balance. Your doctor may order this test if you have signs of any of the following: Low sodium ( hyponatremia ) or water loss Poisoning from harmful substances such as ethanol, methanol, ...

  4. 17-hydroxycorticosteroid urine test

    MedlinePLUS

    ... and other body tissues break down the steroid hormone, cortisol. This test can help determine if the body is producing too much of the hormone, cortisol. The test may be used to diagnose Cushing ...

  5. Follow-Up Testing

    Cancer.gov

    Provides possible follow-up testing, next steps and treatments for women who receive abnormal cervical screening test results, including estrogen cream, colposcopy, endocervical curettage biopsy, punch biopsy, and cone biopsy.

  6. CANbus. , Testing software

    E-print Network

    Kozak, Victor R.

    , , CANbus. , , . , . , , . Testing software for devices with CANbus interface V.R.Kozak Abstract The article describes a specialized software package for devices with CANbus functions of software, results of testing and examples of real applications. © . .. #12

  7. Exercise stress test

    MedlinePLUS

    ... EKG - exercise treadmill; Stress ECG; Exercise electrocardiography; Stress test - exercise treadmill ... This test is done at a medical center or health care provider's office. The technician will place 10 flat, ...

  8. Quadruple screen test

    MedlinePLUS

    ... screen; Multiple marker screening; AFP plus; Triple screen test; AFP maternal; MSAFP; 4-marker screen ... This test is most often done between the 15th and 22nd weeks of the pregnancy. It is most accurate ...

  9. Uric acid test (image)

    MedlinePLUS

    Uric acid urine test is performed to check for the amount of uric acid in urine. Urine is collected over a 24 ... testing. The most common reason for measuring uric acid levels is in the diagnosis or treatment of ...

  10. Folic acid - test

    MedlinePLUS

    Folic acid is a type of B vitamin. This article discusses the test to measure the amount of folic acid in the blood. ... that may interfere with test results, including folic acid supplements. Drugs that can decrease folic acid measurements ...

  11. Chloride test - blood

    MedlinePLUS

    ... of body fluids and maintain the body's acid-base balance. This article is about the laboratory test ... signs that your body's fluid level or acid-base balance is disturbed. This test is usually ordered ...

  12. Allergy Blood Testing

    MedlinePLUS

    ... this really? Will my allergies ever go away? 1. What other tests are available for allergy testing? ... July-August). Food Allergies: When Food Becomes the Enemy. U.S. Food and Drug Administration, FDA Consumer magazine [ ...

  13. Lactic acid test

    MedlinePLUS

    Lactate test ... test. Exercise can cause a temporary increase in lactic acid levels. ... not getting enough oxygen. Conditions that can increase lactic acid levels include: Heart failure Liver disease Lung disease ...

  14. Pap and HPV Testing

    MedlinePLUS

    ... time to treat them while also reducing the detection of HPV infections that would have gone away ... testing to Pap testing may also improve the detection of glandular cell abnormalities, including adenocarcinoma of the ...

  15. Methylene blue test

    MedlinePLUS

    The methylene blue test is a test to determine the type of methemoglobinemia (a blood disorder). ... are removed. A dark green powder called methylene blue goes through the tube into your vein. The ...

  16. Testing of reinforced plastics

    NASA Astrophysics Data System (ADS)

    Epstein, G.

    Tests of reinforced plastics are presented to determine the suitability of the materials, processes, and design for a proposed application. A listing of the types of tests is given including arc resistance tests, bonding strength tests, and light diffusion tests. Specimen configuration, standardized temperature and humidity conditions, and directional properties are examples of considerations which aid in obtaining valid results. Tests of the raw materials to be used in a reinforced plastic construction are presented, as this component serves as a quality control. Standards and specifications for testing methods used for various types of reinforcement materials (glass fiber, asbestos, quartz, etc.) are given. Basic properties of moldings and laminates are determined (physical, mechanical, electrical, etc.), and other tests include flexural strength at elevated temperatures, flammability, and outgassing.

  17. Baby's First Test

    MedlinePLUS

    ... First Test Learn about our initiative. » View more Innovation in Newborn Screening The latest research, news and funding opportunities » View more Innovation About Baby's First Test Contact Us Health Disclaimer ...

  18. HPV DNA test

    MedlinePLUS

    The HPV DNA test is used to check for high-risk HPV infection in women. HPV infection around the genitals is ... warts spread when you have sex. The HPV-DNA test is generally not recommended for detecting low- ...

  19. Surreptitious DNA Testing

    MedlinePLUS

    Most states do not have laws restricting surreptitious DNA testing. Those that do generally place restrictions only ... of states have laws that broadly restrict surreptitious DNA testing for both health and non-health-related ...

  20. Urine specific gravity test

    MedlinePLUS

    Urine specific gravity is a laboratory test that measures the concentration of all chemical particles in the urine. ... changes to will tell the provider the specific gravity of your urine. The dipstick test gives only ...

  1. Animal Testing Medical Research

    E-print Network

    Bech, Claus

    Animal Testing In Medical Research Past, present and future. Marte Thomassen Ellen Trolid Tonje Arondsen Marit Gystøl #12;ZO-8091 Forsøksdyrlære Animal experiments in medical research NTNU ­ Norges.............................................................................................................................. 2 2. ETHICS IN ANIMAL TESTING

  2. Lactose tolerance tests

    MedlinePLUS

    ... blood test is considered normal if your glucose level rises more than 30 mg/dL within 2 hours ... blood test is considered abnormal if your glucose level rises less than 20 mg/dL within 2 hours ...

  3. Blade Testing Trends (Presentation)

    SciTech Connect

    Desmond, M.

    2014-08-01

    As an invited guest speaker, Michael Desmond presented on NREL's NWTC structural testing methods and capabilities at the 2014 Sandia Blade Workshop held on August 26-28, 2014 in Albuquerque, NM. Although dynamometer and field testing capabilities were mentioned, the presentation focused primarily on wind turbine blade testing, including descriptions and capabilities for accredited certification testing, historical methodology and technology deployment, and current research and development activities.

  4. Multidimensional adaptive testing

    Microsoft Academic Search

    Daniel O. Segall

    1996-01-01

    Maximum likelihood and Bayesian procedures for item selection and scoring of multidimensional adaptive tests are presented. A demonstration using simulated response data illustrates that multidimensional adaptive testing (MAT) can provide equal or higher reliabilities with about one-third fewer items than are required by one-dimensional adaptive testing (OAT). Furthermore, holding test-length constant across the MAT and OAT approaches, substantial improvements in

  5. WHITEHEAD TEST MODULES

    Microsoft Academic Search

    JAN TRLIFAJ

    A( right R-) module N is said to be a Whitehead test mod- ule for projectivity (shortly: a p-test module) provided for each module M, ExtR(M;N) = 0 implies M is projective. Dually, i-test modules are dened. For example, Z is a p-test abelian group i each Whitehead group is free. Our rst main result says that if R is

  6. Impact Tests for Woods

    NASA Technical Reports Server (NTRS)

    1922-01-01

    Although it is well known that the strength of wood depends greatly upon the time the wood is under the load, little consideration has been given to this fact in testing materials for airplanes. Here, results are given of impact tests on clear, straight grained spruce. Transverse tests were conducted for comparison. Both Izod and Charpy impact tests were conducted. Results are given primarily in tabular and graphical form.

  7. Tests in Print II: An Index to Tests, Test Reviews, and the Literature on Specific Tests.

    ERIC Educational Resources Information Center

    Buros, Oscar K., Ed.

    Tests in Print II is a comprehensive, annotated bibliography of all in-print tests published as separates for use with English-speaking subjects. The 1,155 two-column pages list 2,467 tests in print as of early 1974; 16,574 references through 1971 on specific tests; a reprinting of the 1974 APA-AERA-NCME Standards for Educational andPsychological…

  8. Specification-Based Testing

    NSDL National Science Digital Library

    Cem Kaner

    2011-06-01

    This subset of the Black Box Software Testing collection includes resources to teach Specification-Based Testing. Spec-based testing involves discovering what claims are made in the specifications and testing the product against those claims. Thus, testers might evaluate a product against a comprehensive development specification, a user manual, a third-party manual, or a collection of emails and meeting notes that together define the product. Resources include lecture videos, slides, activities, suggested readings, and study guide materials.

  9. Dynamic geotechnical testing II

    SciTech Connect

    Ebelhar, R.J.; Drnevich, V.P.; Kutter, B.L. (eds.)

    1994-01-01

    This symposium, sponsored by the ASTM Committee on Soil and Rock, had as its primary goal the identification of both established and innovative tests for determining cyclic and dynamic properties of soils. A secondary goal was to provide a forum for a discussion of testing which has been conducted using standard methods. Papers are divided into the following sections: Field testing; Laboratory methods; and Centrifuge testing. Eight of the papers have been selected for inclusion on the data base.

  10. Coaxial test fixture

    DOEpatents

    Praeg, W.F.

    1984-03-30

    This invention pertains to arrangements for performing electrical tests on contact material samples, and in particular for testing contact material test samples in an evacuated environment under high current loads. Frequently, it is desirable in developing high-current separable contact material, to have at least a preliminary analysis of selected candidate conductor materials. Testing of material samples will hopefully identify materials unsuitable for high current electrical contact without requiring incorporation of the materials into a completed and oftentimes complex structure.

  11. Cryogenic Production Testing

    NASA Astrophysics Data System (ADS)

    Buchness, R. K.; Banks, E.; Doidge, J.; Gable, A.; Nelson, L.; Olsen, D.

    1985-10-01

    Rockwell has realized rapid testing of Infrared Focal Plane Arrays (IRFPAs) using a totally automated cryogenic test station with the latest technology in device handling, data acquisition, illumination and throughput capabilities. This station provides testing of HgCdTe Focal Plane Arrays fabricated in a fully certified production facility. All aspects of this facility are under Quality Control surveillance including the hardware and software used by the automated test station.

  12. Gas Test Loop Booster Fuel Hydraulic Testing

    SciTech Connect

    Gas Test Loop Hydraulic Testing Staff

    2006-09-01

    The Gas Test Loop (GTL) project is for the design of an adaptation to the Advanced Test Reactor (ATR) to create a fast-flux test space where fuels and materials for advanced reactor concepts can undergo irradiation testing. Incident to that design, it was found necessary to make use of special booster fuel to enhance the neutron flux in the reactor lobe in which the Gas Test Loop will be installed. Because the booster fuel is of a different composition and configuration from standard ATR fuel, it is necessary to qualify the booster fuel for use in the ATR. Part of that qualification is the determination that required thermal hydraulic criteria will be met under routine operation and under selected accident scenarios. The Hydraulic Testing task in the GTL project facilitates that determination by measuring flow coefficients (pressure drops) over various regions of the booster fuel over a range of primary coolant flow rates. A high-fidelity model of the NW lobe of the ATR with associated flow baffle, in-pile-tube, and below-core flow channels was designed, constructed and located in the Idaho State University Thermal Fluids Laboratory. A circulation loop was designed and constructed by the university to provide reactor-relevant water flow rates to the test system. Models of the four booster fuel elements required for GTL operation were fabricated from aluminum (no uranium or means of heating) and placed in the flow channel. One of these was instrumented with Pitot tubes to measure flow velocities in the channels between the three booster fuel plates and between the innermost and outermost plates and the side walls of the flow annulus. Flow coefficients in the range of 4 to 6.5 were determined from the measurements made for the upper and middle parts of the booster fuel elements. The flow coefficient for the lower end of the booster fuel and the sub-core flow channel was lower at 2.3.

  13. Tests of Significance

    NSDL National Science Digital Library

    Lacey, Michelle

    This site gives an explanation, a definition of and an example for tests of significance. Topics include null and alternative hypotheses for population mean, one-sided and two-sided z and t tests, levels of significance, and matched pairs analysis. Overall, this is a nice presentation of significance tests for any mathematics classroom.

  14. Test Administration Models

    ERIC Educational Resources Information Center

    Becker, Kirk A.; Bergstrom, Betty A.

    2013-01-01

    The need for increased exam security, improved test formats, more flexible scheduling, better measurement, and more efficient administrative processes has caused testing agencies to consider converting the administration of their exams from paper-and-pencil to computer-based testing (CBT). Many decisions must be made in order to provide an optimal…

  15. Graphics Turing Test

    Microsoft Academic Search

    Michael D. Mcguigan

    2006-01-01

    Abstract We define a Graphics Turing Test to measure graphics performance in a similar manner,to the definition of the traditional Turing Test. To pass the test one needs to reach a computational scale, the Graphics Turing Scale, for which Computer Generated Imagery becomes comparatively indistinguishable from real images while also being interactive. We derive an estimate for this computational scale

  16. THE TURING TEST MISUNDERSTOOD

    Microsoft Academic Search

    Jan Eric Larsson

    1993-01-01

    The Turing test was conceived by Alan Turing [1] as a device to get around the difficult question of whether computers can think, and replace it with one which would be easier to discuss and answer. Since then the suggested test has repeatedly been quoted as an important aim for actual research and as a working test for intelligence.

  17. Testing Unconstrained Optimization Software

    Microsoft Academic Search

    Jorge J. Moré; Burton S. Garbow; Kenneth E. Hillstrom

    1981-01-01

    Much of the testing of optimization software is inadequate because the number of test functmns is small or the starting points are close to the solution. In addition, there has been too much emphasm on measurmg the efficmncy of the software and not enough on testing reliability and robustness. To address this need, we have produced a relatwely large but

  18. Adaptive Testing with Granularity

    Microsoft Academic Search

    Jason A. Collins

    1996-01-01

    Adaptive testing attempts to determine the current level of a student's knowledgequickly and accurately by posing questions. Depending on the student's responses,an adaptive testing routine can estimate the student's level of knowledge to someprecision. If more information is required to make a judgement, the routine canchoose to pose more questions until the routine terminates with a final assessment.Adaptive testing has

  19. English: Tests and Reviews.

    ERIC Educational Resources Information Center

    Buros, Oscar Krisen, Ed.

    The objectives of the "Mental Measurements Yearbooks" (MMY), published in seven volumes since 1938, have been to provide information about tests published as separates throughout the English speaking world and to present frankly critical test reviews. This monograph, reflecting the changing state of the art over 50 years of English testing,…

  20. Testing filamentary composites

    NASA Technical Reports Server (NTRS)

    Dow, N. F.; Rosen, B. W.

    1970-01-01

    NOL ring split-dee tensile test has the advantages that the specimen is readily fabricated by winding and the test is performed in a conventional testing machine without special fixtures. Strain gages cannot be mounted, however, and substantial bending moments are introduced.

  1. Testing bio-chips

    Microsoft Academic Search

    K. Chakrabarty

    2009-01-01

    Dependability is an essential attribute for microfluidic biochips that are being developed for safety-critical applications such as point-of-care health assessment, air-quality monitoring, and food-safety testing. Therefore, these devices must be adequately tested after manufacture and during bioassay operations. This paper describes testing and diagnosis techniques for droplet-based \\

  2. Diagnosing the Diagnostic Test

    ERIC Educational Resources Information Center

    Popham, W. James

    2009-01-01

    Scads of pseudodiagnostic tests are peddled by commercial vendors who recognize that desperate educators will do almost anything to dodge an impending accountability cataclysm. And this "almost anything" includes buying tests that promise to help a teacher raise test scores--even if they don't. Accordingly, today's educators need to be aware of…

  3. STRESS TESTING OF WOODSTOVES

    EPA Science Inventory

    The paper discusses stress testing of woodstoves. tress testing is a way to test the long- term durability of woodstove models in the laboratory in a 1 to 2 week time frame. (NOTE: Woodstove field studies have shown that new technology woodstoves designed to have low particulate ...

  4. Virginia Corn Silage Testing

    E-print Network

    Liskiewicz, Maciej

    Test Results at the Southern Piedmont Site Table 10. Two Year Average Corn Silage Test Results (2003 State, Petersburg. VT/1204/qp/424037 Shenandoah Valley Southwest Virginia Northern Piedmont Southern at the Shenandoah Valley Site Table 6. Two Year Average Corn Silage Test Results (2003 & 2004) at the Shenandoah

  5. Testing Technology, June 1992

    SciTech Connect

    Getsch, B; Floyd, H L; Parrott, L; Van Arsdall, A

    1992-01-01

    This report highlights the following topics: Photon Correlation Spectroscopy--a new application in jet fuel analysis, Testing news in brief; Solar test facility supports space station research; Shock isolation technique developed for piezoresistive accelerometer; High-speed photography captures Distant Image measurements; and, Radiation effects test revised for CMOS electronics.

  6. Aerospace Tests & Measurements

    NSDL National Science Digital Library

    This site from SpaceTEC National Aerospace Technical Education Center presents materials on testing and measurements in the workplace. Topics covered include inspection requirements, engineering drawings, measurement and tools, surface plates, electrical and pressure testing, and non-destructive testing.

  7. Testing the Edges

    NSDL National Science Digital Library

    2014-09-18

    Students gain experience using the software/systems (engineering) design process, specifically focusing on the testing phase. This problem-based learning activity uses the design process to solve open-ended challenges. In addition to learning about test cases for testing software, students utilize the design process as a vehicle to work through a problem and arrive at a solution.

  8. Prenatal Testing Guidelines

    Microsoft Academic Search

    Miriam Kuppermann; Mary E. Norton

    2005-01-01

    Numerous advances over the past 15 years have led to a much wider array of prenatal testing options for pregnant women who are interested in obtaining information regarding the chromosomal status of their fetus. However, despite recent data calling into question the assumptions underlying current testing guidelines, including those inherent in the risk-based threshold for offering invasive testing, chorionic villus

  9. Thyroid Function Tests.

    ERIC Educational Resources Information Center

    Glover, Irving T.

    1979-01-01

    Describes two tests, T-4 and T-3, for hypothyroid based on the binding of the hormones by proteins. The tests were performed in courses for physicians, clinical chemists, laboratory technicians, and undergraduate science students by the individuals involved and on their own sera. These tests are commercially available in kit form. (GA)

  10. Test Development Manual.

    ERIC Educational Resources Information Center

    Malcolm, Donald J.

    Various memoranda concerning language test development procedures and technical operations are compiled for staff at the Kuwait University Language Center from the Office of Tests and Measurement. The memoranda are of interest to Unit Test Representatives but also are intended to provide guidance to unit supervisors, course coordinators, and…

  11. Test Reviewing in Germany

    ERIC Educational Resources Information Center

    Hagemeister, Carmen; Kersting, Martin; Stemmler, Gerhard

    2012-01-01

    In 2006, a (new) German standard for test reviewing was passed (Testkuratorium, 2006). There was already a European standard in place (European Federation of Psychologists' Associations, 2008). This article presents the German standard for test reviewing and explains how the German test review system was derived from demands in the German standard…

  12. Test Scoring [book review].

    ERIC Educational Resources Information Center

    Meijer, Rob R.

    2003-01-01

    This book discusses how to obtain test scores and, in particular, how to obtain test scores from tests that consist of a combination of multiple choice and open-ended questions. The strength of the book is that scoring solutions are presented for a diversity of real world scoring problems. (SLD)

  13. Speededness and Adaptive Testing

    ERIC Educational Resources Information Center

    van der Linden, Wim J.; Xiong, Xinhui

    2013-01-01

    Two simple constraints on the item parameters in a response--time model are proposed to control the speededness of an adaptive test. As the constraints are additive, they can easily be included in the constraint set for a shadow-test approach (STA) to adaptive testing. Alternatively, a simple heuristic is presented to control speededness in plain…

  14. [Memory Checking Tests].

    ERIC Educational Resources Information Center

    Hart, Joseph T.

    Two basic tests for checking memory skills are included in these appendices. The first, the General Information Test, uses the same 150 items for each of its two versions. One version is a completion-type test which measures recall by requiring the examinee to supply a specific response. The other version supplements each of the 150 items with…

  15. Tests for Convergence Clubs

    E-print Network

    Corrado, Luisa; Weeks, Melvyn

    2011-01-26

    tend to a country-specific constant as the forecasting horizon tends to infinity3. We may then write lim s?? E(y(i1),t+s | It) = µ1j ?i 6= 1, (1) where y(i1),t+s = yit+?y1t+, and µ1j is a finite constant 4. In an empirical application the authors test... convergence) and is consistent with the existence of increasing costs of convergence. 5The system unit root test proposed by Bernard and Durlauf is based on the Phillips-Ouliaris test (1988). 4 2.1 Omnibus Tests 2 TESTS OF CONVERGENCE for the number...

  16. New Tests of Relativity

    NASA Astrophysics Data System (ADS)

    Tasson, Jay D.; Kostelecky, Alan

    2010-02-01

    New ways of using gravitational experiments to test relativity have been revealed by recent studies. Experimental results based on lunar laser ranging, torsion pendula, and high- sensitivity gravimetry have already been obtained. Many more tests have been proposed, including qualitatively new searches based on tests of weak equivalence. In some cases, the proposed tests would constitute the first searches for certain types of relativity violation. This presentation will provide an outline of the modern theoretical framework for testing relativity, the gravitational Standard-Model Extension, and a summary of recent experimental results and proposals. )

  17. Morpheus Lander Testing Campaign

    NASA Technical Reports Server (NTRS)

    Hart, Jeremy J.; Mitchell, Jennifer D.

    2011-01-01

    NASA s Morpheus Project has developed and tested a prototype planetary lander capable of vertical takeoff and landing designed to serve as a testbed for advanced spacecraft technologies. The Morpheus vehicle has successfully performed a set of integrated vehicle test flights including hot-fire and tether tests, ultimately culminating in an un-tethered "free-flight" This development and testing campaign was conducted on-site at the Johnson Space Center (JSC), less than one year after project start. Designed, developed, manufactured and operated in-house by engineers at JSC, the Morpheus Project represents an unprecedented departure from recent NASA programs and projects that traditionally require longer development lifecycles and testing at remote, dedicated testing facilities. This paper documents the integrated testing campaign, including descriptions of test types (hot-fire, tether, and free-flight), test objectives, and the infrastructure of JSC testing facilities. A major focus of the paper will be the fast pace of the project, rapid prototyping, frequent testing, and lessons learned from this departure from the traditional engineering development process at NASA s Johnson Space Center.

  18. Pendulum detector testing device

    DOEpatents

    Gonsalves, John M. (Modesto, CA)

    1997-01-01

    A detector testing device which provides consistent, cost-effective, repeatable results. The testing device is primarily constructed of PVC plastic and other non-metallic materials. Sensitivity of a walk-through detector system can be checked by: 1) providing a standard test object simulating the mass, size and material content of a weapon or other contraband, 2) suspending the test object in successive positions, such as head, waist and ankle levels, simulating where the contraband might be concealed on a person walking through the detector system; and 3) swinging the suspended object through each of the positions, while operating the detector system and observing its response. The test object is retained in a holder in which the orientation of the test device or target can be readily changed, to properly complete the testing requirements.

  19. Pendulum detector testing device

    DOEpatents

    Gonsalves, J.M.

    1997-09-30

    A detector testing device is described which provides consistent, cost-effective, repeatable results. The testing device is primarily constructed of PVC plastic and other non-metallic materials. Sensitivity of a walk-through detector system can be checked by: (1) providing a standard test object simulating the mass, size and material content of a weapon or other contraband, (2) suspending the test object in successive positions, such as head, waist and ankle levels, simulating where the contraband might be concealed on a person walking through the detector system; and (3) swinging the suspended object through each of the positions, while operating the detector system and observing its response. The test object is retained in a holder in which the orientation of the test device or target can be readily changed, to properly complete the testing requirements. 5 figs.

  20. European Geography Test

    NSDL National Science Digital Library

    European Geography Test is a collection of challenging Web-based geography exams that survey students' knowledge of European topography, European urban geography, and general map skills. Currently, this site hosts seven tests, which are available in English, Swedish, Spanish, and Dutch. Tests are divided into three different learning levels, and the focus and objectives for each test are clearly stated. The tests employ interactive maps, photographic images, pull-down menus, radio buttons, and fill-in forms to ask students a series of multiple choice, true or false, and matching questions. The questions included in European Geography Test were developed as part of an inter-university project for DGXXII of the European Commission by a consortium of instructors in the UK, Sweden, Belgium, Spain, and The Netherlands. Note: users must register at the site to take the free tests; registration requires name, email address, age, and country of residence.

  1. Flight Testing and Test Instrumentation of PHOENIX

    NASA Astrophysics Data System (ADS)

    Janovsky, R.; Behr, R.

    2005-02-01

    Within the frame of the German national ASTRA program, the need for in-flight experimentation as a key element in the development of the next generation launcher was addressed by the Phoenix project. The Phoenix 1 flight test vehicle was designed to demonstrate the un-powered horizontal landing of a representative, winged RLV configuration. The Phoenix 1 flight test vehicle is downscaled from the reference RLV shape "Hopper", with the dimensions of 7.8m overall length, 3.8m span, and 1200kg mass. In order to be representative of a full scale RLV, the scaling method preserves all features challenging the automatic landing from the flight control point of view. These are in particular the poor flying qualities of the static unstable vehicle and the high landing velocity of 71m/s, which is same as for the full scale vehicle. The landing demonstration scenario comprises a drop from the helicopter approximately 6km ahead of the runway threshold at 2.4km above runway level. The subsequent free flight includes an accelerating dive to merge with a steep final approach path representative of an RLV, followed by a long flare, touch down on the runway, and rollout to standstill. Besides its mandatory avionics system, the vehicle is also equipped with an additional flight test instrumentation to identify local aerodynamic flow and structural stress. This FTI system is designed to collect data by recording about 130 sensor signals during flight. This test instrumentation system was operated during a test campaign dedicated to verify the aerodynamic data base of Phoenix in the Dutch-German Wind-tunnel (DNW) in August 2003 and during three automatic landing flight tests after helicopter drop in May 2004. Post flight analysis of these data allows to validate the design models and the development tools in order to establish a flight validated data base for future work. This paper gives an overview on the Phoenix system including the flight test instrumentation, the test program and the results and lessons learned from the different campaigns.

  2. Propfan Test Assessment (PTA): Flight test report

    NASA Technical Reports Server (NTRS)

    Little, B. H.; Bartel, H. W.; Reddy, N. N.; Swift, G.; Withers, C. C.; Brown, P. C.

    1989-01-01

    The Propfan Test Assessment (PTA) aircraft was flown to obtain glade stress and noise data for a 2.74m (9 ft.) diameter single rotation propfan. Tests were performed at Mach numbers to 0.85 and altitudes to 12,192m (40,000 ft.). The propfan was well-behaved structurally over the entire flight envelope, demonstrating that the blade design technology was completely adequate. Noise data were characterized by strong signals at blade passage frequency and up to 10 harmonics. Cabin noise was not so high as to preclude attainment of comfortable levels with suitable wall treatment. Community noise was not excessive.

  3. True or False? Tests Stink!

    ERIC Educational Resources Information Center

    Romain, Trevor; Verdick, Elizabeth

    This book is designed to help students become better test takers. It helps them feel more confident and less stressed before, during, and after the test. Section 1, "Tests? Blech!" discusses why it is necessary to test students. Section 2, "Test SOS," presents test-taking hints; top secret information about tests and student behavior during tests;…

  4. Compendium of Standardized Science Tests.

    ERIC Educational Resources Information Center

    Wall, Janet

    Fifty standardized science tests are alphabetically listed under three major sections: (1) 23 elementary school science tests; (2) seven middle/junior high school science tests; and (3) secondary school science tests. The following information is provided for each test: test author(s), publisher, number of test forms, number of items on test,…

  5. Flushable reagent stool blood test

    MedlinePLUS

    Stool occult blood test - flushable home test; Fecal occult blood test - flushable home test ... This test is performed at home with disposable pads. You can buy the pads at the drug store without ...

  6. Orion Flight Test Exploration Flight Test-1

    E-print Network

    Waliser, Duane E.

    never before visited by humans, including an asteroid and Mars. On this uncrewed test flight it will carry as NASA continues to move forward on its human journey to Mars. Although Orion is a NASA program Orion is NASA's new spacecraft built to carry humans, designed to allow us to journey to destinations

  7. Nemesis Autonomous Test System

    NASA Technical Reports Server (NTRS)

    Barltrop, Kevin J.; Lee, Cin-Young; Horvath, Gregory A,; Clement, Bradley J.

    2012-01-01

    A generalized framework has been developed for systems validation that can be applied to both traditional and autonomous systems. The framework consists of an automated test case generation and execution system called Nemesis that rapidly and thoroughly identifies flaws or vulnerabilities within a system. By applying genetic optimization and goal-seeking algorithms on the test equipment side, a "war game" is conducted between a system and its complementary nemesis. The end result of the war games is a collection of scenarios that reveals any undesirable behaviors of the system under test. The software provides a reusable framework to evolve test scenarios using genetic algorithms using an operation model of the system under test. It can automatically generate and execute test cases that reveal flaws in behaviorally complex systems. Genetic algorithms focus the exploration of tests on the set of test cases that most effectively reveals the flaws and vulnerabilities of the system under test. It leverages advances in state- and model-based engineering, which are essential in defining the behavior of autonomous systems. It also uses goal networks to describe test scenarios.

  8. Advanced Technology Vehicle Testing

    SciTech Connect

    James Francfort

    2003-11-01

    The light-duty vehicle transportation sector in the United States depends heavily on imported petroleum as a transportation fuel. The Department of Energy’s Advanced Vehicle Testing Activity (AVTA) is testing advanced technology vehicles to help reduce this dependency, which would contribute to the economic stability and homeland security of the United States. These advanced technology test vehicles include internal combustion engine vehicles operating on 100% hydrogen (H2) and H2CNG (compressed natural gas) blended fuels, hybrid electric vehicles, neighborhood electric vehicles, urban electric vehicles, and electric ground support vehicles. The AVTA tests and evaluates these vehicles with closed track and dynamometer testing methods (baseline performance testing) and accelerated reliability testing methods (accumulating lifecycle vehicle miles and operational knowledge within 1 to 1.5 years), and in normal fleet environments. The Arizona Public Service Alternative Fuel Pilot Plant and H2-fueled vehicles are demonstrating the feasibility of using H2 as a transportation fuel. Hybrid, neighborhood, and urban electric test vehicles are demonstrating successful applications of electric drive vehicles in various fleet missions. The AVTA is also developing electric ground support equipment (GSE) test procedures, and GSE testing will start during the fall of 2003. All of these activities are intended to support U.S. energy independence. The Idaho National Engineering and Environmental Laboratory manages these activities for the AVTA.

  9. GIRAFFE test results summary

    SciTech Connect

    Yokobori, S.; Arai, K.; Oikawa, H. [Toshiba Corporation, Kawasaki (Japan)

    1996-03-01

    A passive system can provide engineered safety features enhancing safety system reliability and plant simplicity. Toshiba has conducted the test Program to demonstrate the feasibility of the SBWR passive safety system using a full-height, integral system test facility GIRAFFE. The test facility GIRAFFE models the SBWR in full height to correctly present the gravity driving head forces with a 1/400 volume scale. The GIRAFFE test Program includes the certification tests of the passive containment cooling system (PCCS) to remove the post-accident decay heat and the gravity driven cooling system (GDCS) to replenish the reactor coolant inventory during a LOCA. The test results have confirmed the PCCS and GDCS design and in addition, have demonstrated the operation of the pCCS with the presence of a lighter-than-steam noncondensable as well as with the presence of a heavier-than-steam, noncondensable. The GIRAFFE test Program has also provided the database to qualify a best estimate thermal-hydraulic computer code TRAC. The post test analysis results have shown that TRAC can accurately predict the PCCS heat removal Performance and the containment pressure response to a LOCA. This paper summarizes the GIRAFFE test results to investigate post-LOCA PCCS heat removal performance and post-test analysis using TRAC.

  10. Finite State Machines Testing problems Conformance Testing Machine Identification FSM-Based Testing

    E-print Network

    Mousavi, Mohammad

    Finite State Machines Testing problems Conformance Testing Machine Identification FSM-Based Testing Mousavi: FSM-Based Testing Part II #12;Finite State Machines Testing problems Conformance Testing Machine Identification Outline Finite State Machines Testing problems Conformance Testing Machine Identification Mousavi

  11. Adhesion testing device

    NASA Technical Reports Server (NTRS)

    LaPeyronnie, Glenn M. (Inventor); Huff, Charles M. (Inventor)

    2010-01-01

    The present invention provides a testing apparatus and method for testing the adhesion of a coating to a surface. The invention also includes an improved testing button or dolly for use with the testing apparatus and a self aligning button hook or dolly interface on the testing apparatus. According to preferred forms, the apparatus and method of the present invention are simple, portable, battery operated rugged, and inexpensive to manufacture and use, are readily adaptable to a wide variety of uses, and provide effective and accurate testing results. The device includes a linear actuator driven by an electric motor coupled to the actuator through a gearbox and a rotatable shaft. The electronics for the device are contained in the head section of the device. At the contact end of the device, is positioned a self aligning button hook, attached below the load cell located on the actuator shaft.

  12. Testing with JUnit

    NSDL National Science Digital Library

    IMPART RET Program, College of Information Science & Technology,

    JUnit is a testing method that is included with NetBeans (Java) installs or can be downloaded from the web and included in the Java build. In this activity, students design tests for a provided Java class before the class methods are constructed using a process called test-driven development. To create a design, the software/system design process, which is a specific case of the engineering design process, is followed. After students create a design, it is implemented and tested and if necessary, the design undergoes editing to make sure it functions by testing the Java class correctly. To conclude the activity, students write the methods in the Java class using their tests to debug the program.

  13. Advanced Technology Vehicle Testing

    SciTech Connect

    James Francfort

    2004-06-01

    The goal of the U.S. Department of Energy's Advanced Vehicle Testing Activity (AVTA) is to increase the body of knowledge as well as the awareness and acceptance of electric drive and other advanced technology vehicles (ATV). The AVTA accomplishes this goal by testing ATVs on test tracks and dynamometers (Baseline Performance testing), as well as in real-world applications (Fleet and Accelerated Reliability testing and public demonstrations). This enables the AVTA to provide Federal and private fleet managers, as well as other potential ATV users, with accurate and unbiased information on vehicle performance and infrastructure needs so they can make informed decisions about acquiring and operating ATVs. The ATVs currently in testing include vehicles that burn gaseous hydrogen (H2) fuel and hydrogen/CNG (H/CNG) blended fuels in internal combustion engines (ICE), and hybrid electric (HEV), urban electric, and neighborhood electric vehicles. The AVTA is part of DOE's FreedomCAR and Vehicle Technologies Program.

  14. Rail shear test method

    NASA Technical Reports Server (NTRS)

    Garcia, R.; Mcwithey, R. R.

    1979-01-01

    The results of both an experimental test program and a finite element analysis of selected graphite/polyimide rail shear test specimens are discussed. The two dimensional finite element analysis includes both mechanical and thermal loading (differential expansion) of the specimens and their elastic rails. Parameters in this analysis of unidirectional and symmetric, balanced angle-ply laminates include ply layup angles, the effect of flexible rails, the method of load introduction to the specimen and the effect of uniform heating of the specimen and rails. Two types of tensile rail shear fixtures were investigated experimentally: a uniform thickness, bolted-rail shear fixture loaded diagonally across the specimen test section; and a tapered thickness, bonded-rail shear fixture loaded axially along the center-line of the specimen test section. Test results include room-temperature and 589K strain data taken from the center of the specimen test section during loading.

  15. Laboratory testing in neurorheumatology.

    PubMed

    Hickey, Meghan K; Murali, Mandakolathur

    2014-09-01

    Laboratory testing in cases of neuro-rheumatologic disease can be daunting, and the results can be difficult to interpret if not placed in the correct clinical context. To best help our patients and also to practice in a cost-effective environment, laboratory testing must be performed in a logical manner, guided by symptoms and clinical judgment. The authors discuss the different laboratory tests used in the diagnosis and evaluation of rheumatologic diseases often encountered in the practice of neurology. It is important to understand how the tests are performed and which methods are used at your own institution. Testing should be ordered with a specific diagnosis in mind so as not to confuse the clinical picture with possible false-positive results. Through discussion of the various testing options, the authors advocate a step-wise approach to investigation. PMID:25369433

  16. Testing Software with Pexpect 1 Testing Computer Algebra Systems

    E-print Network

    Verschelde, Jan

    the test suite replacing print with assert statements 2 Automating Tests with Pexpect testing SymPy in Sage Computer Algebra Systems testing software preparing the test suite replacing print with assert statements 2 Systems testing software preparing the test suite replacing print with assert statements 2 Automating

  17. Advancing Toward Test Automation through Effective Manual Testing

    E-print Network

    Advancing Toward Test Automation through Effective Manual Testing May 2005 Advancing Toward Test Automation through Effective Manual Testing Bob Levy, Lead Product Manager ­ Functional Test Dennis Elenburg, IT Specialist ­ Rational Products #12;Advancing Toward Test Automation through Effective Manual Testing Page 2

  18. Adaptive Random Testing: the ART of Test Case Diversity

    Microsoft Academic Search

    Tsong Yueh Chen; Fei-Ching Kuo; Robert G. Merkel; T. H. Tse

    Random testing is not only a useful testing technique in itself, but also plays a core role in many other testing methods. Hence, any significant improvement to random testing has an impact throughout the software testing community. Recently, Adaptive Random Testing (ART) was proposed as an effective alternative to random testing. This paper presents a synthesis of the most important

  19. Stress Corrosion Testing

    NASA Technical Reports Server (NTRS)

    1985-01-01

    Advanced testing of structural materials was developed by Lewis Research Center and Langley Research Center working with the American Society for Testing and Materials (ASTM). Under contract, Aluminum Company of America (Alcoa) conducted a study for evaluating stress corrosion cracking, and recommended the "breaking load" method which determines fracture strengths as well as measuring environmental degradation. Alcoa and Langley plan to submit the procedure to ASTM as a new testing method.

  20. Amos World Testing System

    NSDL National Science Digital Library

    Amos, Orley M., 1954-.

    1997-01-01

    AmosWorld Testing System is developed by Orley M. Amos, Jr., Professor of Economics at Oklahoma State University. The testing system allows users to retrieve up to ten multiple choice questions on various economics topics. Among the topics covered are scarcity, business cycles, GDP, money and unemployment. After the users have answered the multiple choice questions, the testing system will notify the users which of the questions were answered correctly. The site does not provide the correct answer for incorrect choices, however.

  1. PBX 9502 coupon test

    Microsoft Academic Search

    1979-01-01

    PBX 9502 is a plastic-bonded explosive composed of 95\\/5 wt% of triaminotrinitrobenzene (TATB) and Kel-F 800, respectively. The coupon test is an accelerated aging test which is being used to investigate what effects low and high levels of chlorine impurities in the TATB will have on other weapon materials. The testing techniques used to evaluate the degradation of the materials

  2. Software verification and testing

    NASA Technical Reports Server (NTRS)

    1985-01-01

    General procedures for software verification and validation are provided as a guide for managers, programmers, and analysts involved in software development. The verification and validation procedures described are based primarily on testing techniques. Testing refers to the execution of all or part of a software system for the purpose of detecting errors. Planning, execution, and analysis of tests are outlined in this document. Code reading and static analysis techniques for software verification are also described.

  3. Redstone Test Stand

    NASA Technical Reports Server (NTRS)

    1950-01-01

    A Mercury-Redstone launch vehicle awaits test-firing in the Redstone Test Stand during the late 1950s. Between 1953 and 1960, the rocket team at Redstone Arsenal in Huntsville, Alabama performed hundreds of test firings on the Redstone rocket, over 200 on the Mercury-Redstone vehicle configuration alone. It was this configuration which launched America's first two marned space missions, Freedom 7 and Liberty Bell 7,in 1961.

  4. Catalase Test Protocol

    NSDL National Science Digital Library

    American Society For Microbiology

    2010-11-11

    The catalase test is used to detect the presence of the enzyme catalase in bacteria. Catalase serves to neutralize the bactericidal effects of hydrogen peroxide. Its concentration in bacteria has been correlated with pathogenicity. This enzymatic test is essential in the scheme of identification for gram-positive organisms and certain gram-negative organisms. It is a primary test used in the differentiation of staphylococci and streptococci.

  5. Reactor Simulator Testing

    NASA Technical Reports Server (NTRS)

    Schoenfeld, Michael P.; Webster, Kenny L.; Pearson, Boise J.

    2013-01-01

    As part of the Nuclear Systems Office Fission Surface Power Technology Demonstration Unit (TDU) project, a reactor simulator test loop (RxSim) was design & built to perform integrated testing of the TDU components. In particular, the objectives of RxSim testing was to verify the operation of the core simulator, the instrumentation and control system, and the ground support gas and vacuum test equipment. In addition, it was decided to include a thermal test of a cold trap purification design and a pump performance test at pump voltages up to 150 V since the targeted mass flow rate of 1.75 kg/s was not obtained in the RxSim at the originally constrained voltage of 120 V. This paper summarizes RxSim testing. The gas and vacuum ground support test equipment performed effectively in NaK fill, loop pressurization, and NaK drain operations. The instrumentation and control system effectively controlled loop temperature and flow rates or pump voltage to targeted settings. The cold trap design was able to obtain the targeted cold temperature of 480 K. An outlet temperature of 636 K was obtained which was lower than the predicted 750 K but 156 K higher than the cold temperature indicating the design provided some heat regeneration. The annular linear induction pump (ALIP) tested was able to produce a maximum flow rate of 1.53 kg/s at 800 K when operated at 150 V and 53 Hz.

  6. Alternator insulation evaluation tests

    NASA Technical Reports Server (NTRS)

    Penn, W. B.; Schaefer, R. F.; Balke, R. L.

    1972-01-01

    Tests were conducted to predict the remaining electrical insulation life of a 60 KW homopolar inductor alternator following completion of NASA turbo-alternator endurance tests for SNAP-8 space electrical power systems application. The insulation quality was established for two alternators following completion of these tests. A step-temperature aging test procedure was developed for insulation life prediction and applied to one of the two alternators. Armature winding insulation life of over 80,000 hours for an average winding temperature of 248 degrees C was predicted using the developed procedure.

  7. Leak test fitting

    DOEpatents

    Pickett, Patrick T. (Kettering, OH)

    1981-01-01

    A hollow fitting for use in gas spectrometry leak testing of conduit joints is divided into two generally symmetrical halves along the axis of the conduit. A clip may quickly and easily fasten and unfasten the halves around the conduit joint under test. Each end of the fitting is sealable with a yieldable material, such as a piece of foam rubber. An orifice is provided in a wall of the fitting for the insertion or detection of helium during testing. One half of the fitting also may be employed to test joints mounted against a surface.

  8. RSV antibody test

    MedlinePLUS

    Respiratory syncytial virus antibody test; RSV serology ... Breese HC. Respiratory syncytial virus. In: Mandell GL, Bennett JE, Dolin R, eds. Mandel, Douglas, and Bennett's Principles and Practice of ...

  9. Open Rotor Test Status

    NASA Technical Reports Server (NTRS)

    VanZante, Dale E.

    2010-01-01

    Testing of low noise, counter-rotating open rotor propulsion concepts has been ongoing at Glenn Research Center in collaboration with General Electric Company. The presentation is an overview of the testing that has been completed to date and previews the upcoming test entries. The NASA Environmentally Responsible Aviation Project Diagnostics entry is the most recent to finish. That test entry included acoustic phased array, pressure sensitive paint, particle image velocimetry, pylon installed measurements and acoustic shielding measurements. A preview of the data to be acquired in the 8x6 high-speed wind tunnel is also included.

  10. Vertical Line Test

    NSDL National Science Digital Library

    2011-05-24

    In this activity, students try to connect given points on a graph in a way that they will pass the vertical line test. If the points can't be made to pass the vertical line test, the student must adjust the points so they will pass the test. This activity allows students to explore the vertical line test for functions. This activity includes supplemental materials, including background information about the topics covered, a description of how to use the application, and exploration questions for use with the java applet.

  11. LSA field test

    NASA Technical Reports Server (NTRS)

    Jaffe, P.

    1979-01-01

    Degradation tests indicate that electrical degradation is not a slow monotonically increasing phenomenon as originally thought but occurs abruptly as the result of some traumatic event. This finding has led to a change in the test philosophy. A discussion of this change is presented along with a summary of degradation and failure data from all the sites and results from a variety of special tests. New instrumentation for in-field measurements are described. Field testing activity was expanded by the addition of twelve remote sites located as far away as Alaska and the Canal Zone. Descriptions of the new sites are included.

  12. Strep Test: Rapid

    MedlinePLUS

    ... test can show the presence of group A streptococcus bacteria, which can cause strep throat and other infections (including pneumonia, tonsillitis, scarlet fever, and meningitis). Strep throat is ...

  13. Force Limited Vibration Testing

    NASA Technical Reports Server (NTRS)

    Scharton, Terry; Chang, Kurng Y.

    2005-01-01

    This slide presentation reviews the concept and applications of Force Limited Vibration Testing. The goal of vibration testing of aerospace hardware is to identify problems that would result in flight failures. The commonly used aerospace vibration tests uses artificially high shaker forces and responses at the resonance frequencies of the test item. It has become common to limit the acceleration responses in the test to those predicted for the flight. This requires an analysis of the acceleration response, and requires placing accelerometers on the test item. With the advent of piezoelectric gages it has become possible to improve vibration testing. The basic equations have are reviewed. Force limits are analogous and complementary to the acceleration specifications used in conventional vibration testing. Just as the acceleration specification is the frequency spectrum envelope of the in-flight acceleration at the interface between the test item and flight mounting structure, the force limit is the envelope of the in-flight force at the interface . In force limited vibration tests, both the acceleration and force specifications are needed, and the force specification is generally based on and proportional to the acceleration specification. Therefore, force limiting does not compensate for errors in the development of the acceleration specification, e.g., too much conservatism or the lack thereof. These errors will carry over into the force specification. Since in-flight vibratory force data are scarce, force limits are often derived from coupled system analyses and impedance information obtained from measurements or finite element models (FEM). Fortunately, data on the interface forces between systems and components are now available from system acoustic and vibration tests of development test models and from a few flight experiments. Semi-empirical methods of predicting force limits are currently being developed on the basis of the limited flight and system test data. A simple two degree of freedom system is shown and the governing equations for basic force limiting results for this system are reviewed. The design and results of the shuttle vibration forces (SVF) experiments are reviewed. The Advanced Composition Explorer (ACE) also was used to validate force limiting. Test instrumentation and supporting equipment are reviewed including piezo-electric force transducers, signal processing and conditioning systems, test fixtures, and vibration controller systems. Several examples of force limited vibration testing are presented with some results.

  14. Overview of Imaging Tests

    MedlinePLUS

    ... The Science of Medicine and Clinical Trials Limb Prosthetics Common Imaging Tests Medicinal Herbs and Nutraceuticals Hospital ... uterus Back to Top Previous: Overview of Limb Prosthetics Next: Angiography

  15. Fatigue Testing of Drillpipe

    Microsoft Academic Search

    G. Y. Grondin; G. L. Kulak

    1994-01-01

    Twenty-nine tests in air and 27 tests in a 3.5% NaCl solution were conducted to test the fatigue strength of Grade E 4.5-in.-OD, 16.6-lbm\\/ft (114-mm-OD, 24.7-kg\\/m) drillpipe. The effects of stress range, mean stress, corrosion, and upset geometry were tested on the drillpipe body alone and on specimens that included the tool joint, upset, and drillpipe body. Stress range and

  16. LISA Optical Bench Testing

    NASA Astrophysics Data System (ADS)

    Tröbs, M.; d'Arcio, L.; Barke, S.; Bogenstahl, J.; Diekmann, C.; Fitzsimons, E. D.; Gerberding, O.; Hennig, J.; Hey, F. G.; Hogenhuis, H.; Killow, C. J.; Lieser, M.; Lucarelli, S.; Nikolov, S.; Perreur-Lloyd, M.; Pijnenburg, J.; Robertson, D. I.; Sohmer, A.; Taylor, A.; Ward, H.; Weise, D.; Heinzel, G.; Danzmann, K.

    2013-01-01

    Each LISA satellite carries optical benches, one for each test mass, that measure the distance to the local test mass and to the remote optical bench on the distant satellite. Currently, an elegant bread board of the optical bench is developed for the European Space Agency (ESA) by EADS Astrium, TNO Science and Technology, University of Glasgow and the Albert Einstein Institute. To test the optical bench the two interferometers mentioned above must be completed by an external simulator, the test mass and telescope simulator. We give an overview of the simulator layout and performance predictions.

  17. Adaptive Multivariate Global Testing

    PubMed Central

    Minas, Giorgos; Aston, John A.D.; Stallard, Nigel

    2014-01-01

    We present a methodology for dealing with recent challenges in testing global hypotheses using multivariate observations. The proposed tests target situations, often arising in emerging applications of neuroimaging, where the sample size n is relatively small compared with the observations’ dimension K. We employ adaptive designs allowing for sequential modifications of the test statistics adapting to accumulated data. The adaptations are optimal in the sense of maximizing the predictive power of the test at each interim analysis while still controlling the Type I error. Optimality is obtained by a general result applicable to typical adaptive design settings. Further, we prove that the potentially high-dimensional design space of the tests can be reduced to a low-dimensional projection space enabling us to perform simpler power analysis studies, including comparisons to alternative tests. We illustrate the substantial improvement in efficiency that the proposed tests can make over standard tests, especially in the case of n smaller or slightly larger than K. The methods are also studied empirically using both simulated data and data from an EEG study, where the use of prior knowledge substantially increases the power of the test. Supplementary materials for this article are available online. PMID:25125767

  18. Software Testing and Verification

    NSDL National Science Digital Library

    The current issue of the IBM Systems Journal examines many aspects of software testing and verification. This new material contains ten articles written by workers in the IBM Research Division. Some of the papers, such as Testing z/OS, might be specific to IBM operations; however, most can be useful to individuals or companies implementing similar testing strategies. One article in particular discusses three case studies of Orthogonal Defect Classification and how it can be used "to improve software testing." Although the issue cannot be downloaded as a whole, individual papers can be viewed or downloaded in various formats.

  19. Charcoal filter testing

    SciTech Connect

    Lyons, J. [Nuclear Regulatory Commission, Washington, DC (United States)

    1997-08-01

    In this very brief, informal presentation, a representative of the US Nuclear Regulatory Commission outlines some problems with charcoal filter testing procedures and actions being taken to correct the problems. Two primary concerns are addressed: (1) the process to find the test method is confusing, and (2) the requirements of the reference test procedures result in condensation on the charcoal and causes the test to fail. To address these problems, emergency technical specifications were processed for three nuclear plants. A generic or an administrative letter is proposed as a more permanent solution. 1 fig.

  20. Automated Test Stand for HEV Capacitor Testing

    SciTech Connect

    Seiber, Larry Eugene [ORNL; Armstrong, Gary [Maverick Systems

    2007-01-01

    As capacitor manufacturers race to meet the needs of the hybrid-electric vehicle (HEV) of the future, many trade-offs at the system level as well as the component level must be considered. Even though the ultra-capacitor has the spot light for recent research and development (R&D) for HEVs, the electrostatic capacitor is also the subject of R&D (for HEVs as well as wireless communications). The Department of Energy has funded the Oak Ridge National Laboratory's Power Electronic and Electric Machinery Research Center to develop an automated test to aid in the independent testing of prototype electrostatic capacitors. This paper describes the design and development of such a stand.

  1. Dynamic impact testing with servohydraulic testing machines

    NASA Astrophysics Data System (ADS)

    Bardenheier, R.; Rogers, G.

    2006-08-01

    The design concept of “Crashworthiness” requires the information on material behaviour under dynamic impact loading in order to describe and predict the crash behaviour of structures. Especially the transport related industries, like car, railway or aircraft industry, pursue the concept of lightweight design for a while now. The materials' maximum constraint during loading is pushed to permanently increasing figures. This means in terms of crashworthiness that the process of energy absorption in structures and the mechanical behaviour of materials must well understood and can be described appropriately by material models. In close cooperation with experts from various industries and research institutes Instron has developed throughout the past years a new family of servohydraulic testing machines specifically designed to cope with the dynamics of high rate testing. Main development steps are reflected versus their experimental necessities.

  2. Testing, Requirements, and Metrics

    NASA Technical Reports Server (NTRS)

    Rosenberg, Linda; Hyatt, Larry; Hammer, Theodore F.; Huffman, Lenore; Wilson, William

    1998-01-01

    The criticality of correct, complete, testable requirements is a fundamental tenet of software engineering. Also critical is complete requirements based testing of the final product. Modern tools for managing requirements allow new metrics to be used in support of both of these critical processes. Using these tools, potential problems with the quality of the requirements and the test plan can be identified early in the life cycle. Some of these quality factors include: ambiguous or incomplete requirements, poorly designed requirements databases, excessive or insufficient test cases, and incomplete linkage of tests to requirements. This paper discusses how metrics can be used to evaluate the quality of the requirements and test to avoid problems later. Requirements management and requirements based testing have always been critical in the implementation of high quality software systems. Recently, automated tools have become available to support requirements management. At NASA's Goddard Space Flight Center (GSFC), automated requirements management tools are being used on several large projects. The use of these tools opens the door to innovative uses of metrics in characterizing test plan quality and assessing overall testing risks. In support of these projects, the Software Assurance Technology Center (SATC) is working to develop and apply a metrics program that utilizes the information now available through the application of requirements management tools. Metrics based on this information provides real-time insight into the testing of requirements and these metrics assist the Project Quality Office in its testing oversight role. This paper discusses three facets of the SATC's efforts to evaluate the quality of the requirements and test plan early in the life cycle, thus preventing costly errors and time delays later.

  3. Terrestrial photovoltaic cell process testing

    NASA Technical Reports Server (NTRS)

    Burger, D. R.

    1985-01-01

    The paper examines critical test parameters, criteria for selecting appropriate tests, and the use of statistical controls and test patterns to enhance PV-cell process test results. The coverage of critical test parameters is evaluated by examining available test methods and then screening these methods by considering the ability to measure those critical parameters which are most affected by the generic process, the cost of the test equipment and test performance, and the feasibility for process testing.

  4. Track/train dynamics test report transfer function test. Volume 1: Test

    NASA Technical Reports Server (NTRS)

    Vigil, R. A.

    1975-01-01

    A description is presented of the transfer function test performed on an open hopper freight car loaded with 80 tons of coal. Test data and a post-test update of the requirements document and test procedure are presented. Included are a statement of the test objective, a description of the test configurations, test facilities, test methods, data acquisition/reduction operations, and a chronological test summary. An index to the data for the three test configurations (X, Y, and Z-axis tests) is presented along with test sequence, run number, test reference, and input parameters.

  5. Neonatal Screening Tests.

    ERIC Educational Resources Information Center

    Vigue, Charles L.

    1986-01-01

    Describes several laboratory experiments that are adaptations of clinical tests for certain genetic diseases in babies. Information and procedures are provided for tests for phenylketonuria (PKU), galactosemia, tyrosinemia, cystinuria, and mucopolysaccharidosis. Discusses the effects of each disease on the infants' development. (TW)

  6. Power transformer testing

    NASA Astrophysics Data System (ADS)

    Zagrobelna, Magdalena; Wasilewski, Andrzej

    2014-11-01

    This paper presents the method of oil-filled transformer monitoring by means of a fiber optic sensor. Our method can be extremely useful in case of prevent overheating and the winding failure. A special semiconductor technology plays an important role in such measurement. The tests were carried out by means of the developed test stand imitating a real power transformer.

  7. Creating Tests Worth Taking.

    ERIC Educational Resources Information Center

    Wiggins, Grant

    1992-01-01

    Offers some proven design tips, tools, and criteria for fashioning assessment tasks that are more enticing, feasible, and defensible. Typical tests tend to overassess student "knowledge" and underassess student "know-how with knowledge." Test designers should create authentic simulations rich in contextual detail, devise meaningful tasks, and…

  8. Drug Testing. Research Brief

    ERIC Educational Resources Information Center

    Walker, Karen

    2007-01-01

    In 2002, the United States Supreme Court confirmed that in the school's role of in loco parentis, drug testing of students who were involved in athletics and extracurricular activities was constitutional. In a state of the union address, George W. Bush stated that drug testing in schools had been effective and was part of "our aggressive…

  9. Electrocontact microdisplacement testing subsystem

    Microsoft Academic Search

    V. Zagursky; D. Zibinch

    1999-01-01

    The subsystem relates to control, testing and measurement instrumentation with closed digital control loop structure and may be used, in particular, for testing and measurement of smooth displacements resulting from, for example, force or temperature deformation of an object, or for detection of changes in geometric dimensions of an object while monitoring its airtightness, e.g. monitoring the airtightness of integrated

  10. Electrocontact microdisplacement testing subsystem

    Microsoft Academic Search

    V. Zagursky; D. Zibinch

    1999-01-01

    The subsystem relates to control, testing and measurement instrumentation with closed digital control loop structure. It may be used for testing and measurement of smooth displacements resulting from, for example, force or temperature deformation of an object, or for detection of charges in geometric dimensions of an object while monitoring its airtightness; in particular, when monitoring airtightness of integral microcircuits

  11. SHOOT performance testing

    Microsoft Academic Search

    M. J. Dipirro; P. J. Shirron; S. M. Volz; M. E. Schein

    1991-01-01

    The Superfluid Helium On-Orbit Transfer (SHOOT) Flight Demonstration is a shuttle attached payload designed to demonstrate the technology necessary to resupply liquid helium dewars in space. Many SHOOT components will also have use in other aerospace cryogenic systems. The first of two SHOOT dewar systems has been fabricated. The ground performance testing of this dewar is described. The performance tests

  12. Prematurely terminated slug tests

    SciTech Connect

    Karasaki, K. (Lawrence Berkeley Lab., CA (USA))

    1990-07-01

    A solution of the well response to a prematurely terminated slug test (PTST) is presented. The advantages of a PTST over conventional slug tests are discussed. A systematized procedure of a PTST is proposed, where a slug test is terminated in the midpoint of the flow point, and the subsequent shut-in data is recorded and analyzed. This method requires a downhole shut-in device and a pressure transducer, which is no more than the conventional deep-well slug testing. As opposed to slug tests, which are ineffective when a skin is present, more accurate estimate of formation permeability can be made using a PTST. Premature termination also shortens the test duration considerably. Because in most cases no more information is gained by completing a slug test to the end, the author recommends that conventional slug tests be replaced by the premature termination technique. This study is part of an investigation of the feasibility of geologic isolation of nuclear wastes being carried out by the US Department of Energy and the National Cooperative for the Storage of Radioactive Waste of Switzerland.

  13. Test Group Rethinks Questions

    ERIC Educational Resources Information Center

    Gewertz, Catherine

    2012-01-01

    A group that is developing tests for half the states in the nation has dramatically reduced the length of its assessment in a bid to balance the desire for a more meaningful and useful exam with concerns about the amount of time spent on testing. The decision by the Smarter Balanced Assessment Consortium reflects months of conversation among its…

  14. Drug Testing. Research Brief

    ERIC Educational Resources Information Center

    Walker, Karen

    2005-01-01

    The Vernonia School District v. Acton Supreme Court decision in 1995, forever changed the landscape of the legality of drug testing in schools. This decision stated that students who were involved in athletic programs could be drug tested as long as the student's privacy was not invaded. According to some in the medical profession, there are two…

  15. Exercise stress testing

    NASA Technical Reports Server (NTRS)

    Schuster, B.

    1975-01-01

    Positive maximum stress tests in the management of coronary patients are discussed. It is believed that coronary angiography would be the ultimate test to predict the future of patients with coronary heart disease. Progression of angina, myocardial infarction, and death due to heart disease were analyzed.

  16. Chess Masters' Hypothesis Testing

    Microsoft Academic Search

    Michelle Cowley; Ruth M. J. Byrne

    Falsification may demarcate science from non-science as the rational way to test the truth of hypotheses. But experimental evidence from studies of reasoning shows that people often find falsification difficult. We suggest that domain expertise may facilitate falsification. We consider new experimental data about chess experts' hypothesis testing. The results show that chess masters were readily able to falsify their

  17. Advanced Test Reactor Tour

    SciTech Connect

    Miley, Don

    2011-01-01

    The Advanced Test Reactor at Idaho National Laboratory is the foremost nuclear materials test reactor in the world. This virtual tour describes the reactor, how experiments are conducted, and how spent nuclear fuel is handled and stored. For more information about INL research, visit http://www.facebook.com/idahonationallaboratory.

  18. Testing the Waters.

    ERIC Educational Resources Information Center

    Finks, Mason

    1993-01-01

    Provides information about home drinking water treatment systems to address concerns about the safety and quality of drinking water. Discusses water testing, filtration, product options and selection, water testing resources, water treatment device guidelines, water analysis terminology, and laboratory selection. (MCO)

  19. Matrix Analogies Test (MAT).

    ERIC Educational Resources Information Center

    Nicholson, Charles L.

    1990-01-01

    The Matrix Analogies Test measures nonverbal ability of handicapped and nonhandicapped children, ages 5-17, in a culture-fair fashion. It assesses pattern completion, reasoning by analogy, serial reasoning, and spatial visualization, with a short form available as a screening instrument. This paper describes the test's administration, format,…

  20. Teachers and Achievement Testing.

    ERIC Educational Resources Information Center

    Ryor, John

    1978-01-01

    In this speech, the president of the National Education Association presents a series of arguments against the development of national educational standards and against the continued use of national, norm-referenced, standardized tests. Eight objections to the use of such tests are noted. Defense of the teaching profession's objections to the…

  1. Misspecification Tests in Econometrics

    Microsoft Academic Search

    L. G. Godfrey

    1988-01-01

    Misspecification tests play an important role in detecting unreliable and inadequate economic models. This book brings together many results from the growing literature in econometrics on misspecification testing. It provides theoretical analyses and convenient methods for application. The main emphasis is on the Lagrange multiplier principle, which provides considerable unification, although several other approaches are also considered. The author also

  2. Kleene algebra with tests

    Microsoft Academic Search

    Dexter Kozen

    1997-01-01

    We introduce Kleene algebra with tests, an equational system for manipulating programs. We give a purely equational proof, using Kleene algebra with tests and commutativity conditions, of the following classical result: every while program can be simulated by a while program can be simulated by a while program with at most one while loop. The proof illustrates the use of

  3. Science Tests and Reviews.

    ERIC Educational Resources Information Center

    Buros, Oscar Krisen, Ed.

    In this monograph, the science components of the seven "Mental Measurements Yearbook" (1938-1972) and "Tests in Print II" (1974) have been combined. The publication contains critiques of many standardized science tests designed for achievement measurement in specific subjects and grade levels. Extensive indexes provide reference to contents by…

  4. Incremental Regression Testing

    Microsoft Academic Search

    Hiralal Agrawal; Joseph Robert Horgan; Edward W. Krauser; Saul A. London

    1993-01-01

    The purpose of regression testing is to ensure thatbug #xes and new functionality introduced in a newversion of a software do not adversely a#ect the correctfunctionality inheritedfrom the previous version.This paper explores e#cient methods of selecting smallsubsets of regression test sets that may be usedtoestablishthe same.

  5. Criteria for vibration testing

    NASA Technical Reports Server (NTRS)

    Cronin, D. L.

    1971-01-01

    Systematic application of response spectral analysis and other analyses determine damping sensitivity of flight environment and candidate laboratory tests. Computerized comparison is made between response spectrum for flight environment, or enveloping spectra for collection of flight events, and response spectrum for candidate laboratory test.

  6. TESTING INTRUSION DETECTION SYSTEMS

    E-print Network

    July 2003 TESTING INTRUSION DETECTION SYSTEMS Elizabeth B. Lennon, Editor Information Technology detection systems (IDSs) are now stan dard equipment for large networks. IDSs are software or hardware, An Over view of Issues in Testing Intrusion Detec tion Systems, by Peter Mell and Vincent Hu of NIST

  7. Nuclear weapons testing

    Microsoft Academic Search

    Heylin

    1988-01-01

    The author examines the history of efforts to ban, or at least constrain, nuclear tests. The issue has been marked by shifts in attitude by the superpowers in recent times. The Reagan Administration sees a comprehensive test ban only as a very long-term goal for the U.S. The Soviets, on the other hand, have been pushing extremely hard lately for

  8. Resonant column test

    Microsoft Academic Search

    V. P. Drnevich

    1978-01-01

    The resonant column test is used to determine by vibration the shear modulus, shear damping, rod modulus (Young's modulus) and rod damping of cylindrical specimens of soil in the undisturbed and remolded conditions. The vibration apparatus, apparatus calibration, and calculations are described. The reduction of all resonant column test data is presented in a computer program.

  9. Virginia Corn Silage Testing

    E-print Network

    Liskiewicz, Maciej

    ....................24 Table 13. Three Year Average Corn Silage Test Results (2003 to 2005) at the Southern Piedmont Site Virginia Northern Piedmont Southern Piedmont 2005 publication424-037 #12;#12;2 THE 2005 VIRGINIA CORN.....................16 Table 7. Three Year Average Corn Silage Test Results (2003 to 2005) at the Shenandoah Valley Site

  10. Advanced Test Reactor Tour

    ScienceCinema

    Miley, Don

    2013-05-28

    The Advanced Test Reactor at Idaho National Laboratory is the foremost nuclear materials test reactor in the world. This virtual tour describes the reactor, how experiments are conducted, and how spent nuclear fuel is handled and stored. For more information about INL research, visit http://www.facebook.com/idahonationallaboratory.

  11. Radiation penetration test

    Microsoft Academic Search

    Kannoo

    1973-01-01

    Radiation penetration tests are one of the nondestructive testing ; methods which are employed as a method of detecting internal defects with ; ultrasonic flaw detection. Of these, radiography is the most widely used method ; for defect detection, which produces two dimensional images of defects on x-ray ; films. Experimental investigations have been carried out for the defects to

  12. Compact tubing testing unit

    Microsoft Academic Search

    Matherne

    1974-01-01

    A mobile unit is described for use in testing tubing joints as the tubing is being made up and run into an oil well. The mobile unit includes a framework compactly receiving an engine driving a hydraulic pump, a drawworks, high pressure hydraulically actuated pump for pressuring the tubing joint to be tested, and tubing tongs for use in making

  13. TestThink

    ERIC Educational Resources Information Center

    Maylone, Nelson

    2004-01-01

    For all the fractious debate in America over the state of public schools, those on the political Left and Right agree that the "achievement gaps" are real. But what do most people mean when they say "achievement gaps"? Gaps in standardized test scores, of course. The gaps consist of the differences between the test scores of students of color and…

  14. Diagnostic Testing Project.

    ERIC Educational Resources Information Center

    McArthur, David L.

    This paper presents an explanation of the program design of the three separate Pascal-language programs which comprise UCLA's Diagnostic Testing Package "DX." The three parts of the DX test package are three closely interrelated programs--Editest, Runtest, and Summary. Editest serves the following functions: (1) the creation of a suitable…

  15. STANDARDIZING BOOM TEST PROCEDURES

    EPA Science Inventory

    The OHMSETT Interagency Technical Committee (OTIC) sponsored a combined series of in-tank and open-water tests of five booms that cover a wide range of sizes and design parameters. The tests were conducted at the United States Environmental Protection Agency's OHMSETT facility an...

  16. Research and test facilities

    NASA Technical Reports Server (NTRS)

    1993-01-01

    A description is given of each of the following Langley research and test facilities: 0.3-Meter Transonic Cryogenic Tunnel, 7-by 10-Foot High Speed Tunnel, 8-Foot Transonic Pressure Tunnel, 13-Inch Magnetic Suspension & Balance System, 14-by 22-Foot Subsonic Tunnel, 16-Foot Transonic Tunnel, 16-by 24-Inch Water Tunnel, 20-Foot Vertical Spin Tunnel, 30-by 60-Foot Wind Tunnel, Advanced Civil Transport Simulator (ACTS), Advanced Technology Research Laboratory, Aerospace Controls Research Laboratory (ACRL), Aerothermal Loads Complex, Aircraft Landing Dynamics Facility (ALDF), Avionics Integration Research Laboratory, Basic Aerodynamics Research Tunnel (BART), Compact Range Test Facility, Differential Maneuvering Simulator (DMS), Enhanced/Synthetic Vision & Spatial Displays Laboratory, Experimental Test Range (ETR) Flight Research Facility, General Aviation Simulator (GAS), High Intensity Radiated Fields Facility, Human Engineering Methods Laboratory, Hypersonic Facilities Complex, Impact Dynamics Research Facility, Jet Noise Laboratory & Anechoic Jet Facility, Light Alloy Laboratory, Low Frequency Antenna Test Facility, Low Turbulence Pressure Tunnel, Mechanics of Metals Laboratory, National Transonic Facility (NTF), NDE Research Laboratory, Polymers & Composites Laboratory, Pyrotechnic Test Facility, Quiet Flow Facility, Robotics Facilities, Scientific Visualization System, Scramjet Test Complex, Space Materials Research Laboratory, Space Simulation & Environmental Test Complex, Structural Dynamics Research Laboratory, Structural Dynamics Test Beds, Structures & Materials Research Laboratory, Supersonic Low Disturbance Pilot Tunnel, Thermal Acoustic Fatigue Apparatus (TAFA), Transonic Dynamics Tunnel (TDT), Transport Systems Research Vehicle, Unitary Plan Wind Tunnel, and the Visual Motion Simulator (VMS).

  17. Cancer: Diagnosis and Tests

    MedlinePLUS

    MENU Return to Web version Cancer | Diagnosis & Tests What screening tests should women have? Increasing age is the most important risk factor for breast cancer for most women. To help find breast cancer early, your doctor may perform a clinical breast exam (where he or she checks ...

  18. Test Fairness: A Response

    ERIC Educational Resources Information Center

    Davies, Alan

    2010-01-01

    This article presents the author's response to Xiaoming Xi's paper titled "How do we go about investigating test fairness?" In the paper, Xi offers "a means to fully integrate fairness investigations and practice". Given the current importance accorded to fairness in the language testing community, Xi makes a case for viewing fairness as an aspect…

  19. Choosing the Right Test

    NSDL National Science Digital Library

    Dinov, Ivo

    This page, created by Ivo Dinov of the University of California, Berkeley, helps readers know which statistical tests are appropriate for the different types of data. Two charts display the information. A discussion of study design and sample size, as well as exercise questions with solutions are also provided. This is a great reference tool for anyone interested in different statistical tests and methods.

  20. FIELD DISPERSANT EFFECTIVENESS TEST

    EPA Science Inventory

    The EPA's OHMSETT facility has developed a rapid field test that includes some of the theoretical aspects and conditions of dispersion at sea. This Field Dispersant Effectiveness Test (FDET) has been used to evaluate the dispersibility of various commonly-transported oils and mak...

  1. Testing Service Composition

    Microsoft Academic Search

    Antonio Bucchiarone; Hernan Melgratti; Francesco Severoni

    Service Oriented Computing (SOC) is aimed at providing the bases for building software by assembling independent, loosely coupled services. As any software development activity, also building a composite service requires strategies for performing quality assessment of applications and, in particular, testing. In this paper, we analyse the main alternatives for testing compositions (either in the form of choreographies or orchestrations),

  2. Test Well, East River

    USGS Multimedia Gallery

    USGS test well 10 34h363 in the East River, Brunswick, Ga. The U.S. Geological Survey drilled this test well in the early 1970's and at the time it was on the edge of the marsh at Andrews Island. It is now only accessible by boat or canoe at high tide. Despite being surrounded by saltwater the artes...

  3. HIV Testing and Pregnancy

    MedlinePLUS

    ... woman infected with HIV to her baby during pregnancy, during labor and delivery, or by breastfeeding. HIV antibody test: an HIV test that checks for HIV antibodies in a person’s blood, urine, or fluids from the mouth. When the body ...

  4. Routine DNA testing

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Routine DNA testing. It’s done once you’ve Marker-Assisted Breeding Pipelined promising Qantitative Trait Loci within your own breeding program and thereby established the performance-predictive power of each DNA test for your germplasm under your conditions. By then you are ready to screen your par...

  5. Electromagnetic wave test

    Microsoft Academic Search

    R. K. Matthews; S. A. Stepanek

    1993-01-01

    Electromagnetic wave testing, which represents a relatively new test technique that involves the union of several disciplines (aerothermodynamics, electromagnetics, materials\\/structures, and advanced diagnostics) is introduced. The essence of this new technique deals with the transmission and possible distortion of electromagnetic waves (RF or IR) as they pass through the bow shock, flow field, and electromagnetic window of a missile flying

  6. Getting a Urine Test

    MedlinePLUS Videos and Cool Tools

    ... learn a lot from urine tests. Obviously, this test doesn't hurt. And if you know what to expect, it doesn't have to be embarrassing ... & Terms of Use Visit the Nemours Web site. Note: All information on KidsHealth® is for ...

  7. test collection retrieval effectiveness

    E-print Network

    Lalmas, Mounia

    and provide means, in the form of a large XML test collection and appropriate scoring methodsINEX evaluation test collection retrieval effectiveness The INEX Evaluation Initiative Gabriella increases, so is the need to assess their benefit to users. The benefit to a given user depends largely

  8. Solid Rocket Motor Test

    NASA Technical Reports Server (NTRS)

    2008-01-01

    Shown is a test of the TEM-13 solid rocket motor at the ATK test facility in Utah in support of the Ares/CLV first stage. This image is extracted from high definition video and is the highest resolution available.

  9. BEHAVIORAL TEST METHODS WORKSHOP.

    EPA Science Inventory

    This manuscript is the report from a workshop on behavioral testing methods that was held in Philadelphia PA on June 20-21, 2003. The workshop evaluated various aspects of behavioral testing methodology with the overall objective of identifying factors to improve the conduct of ...

  10. SMVCIR Dimensionality Test

    E-print Network

    Lindsey, Charles D.

    2011-08-08

    . . . . . . . . . . . . . . . . . . . . . . . . . . . 229 B. Wine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 241 VIII DIRECTIONS OF STUDY : : : : : : : : : : : : : : : : : : : : : 253 A. Multiple Hypothesis Testing . . . . . . . . . . . . . . . . . 253 B. Variable Selection... Standardized Coe#14;cients : : : : : : : : : : : : : 236 63 Digit 9 Cluster Standardized Means : : : : : : : : : : : : : : : : : : 238 xiv TABLE Page 64 Wine, SMVCIR d Test : : : : : : : : : : : : : : : : : : : : : : : : : : 241 65 Wine, SMVCIR Standardized...

  11. Implicit Association Test Explanation

    NSDL National Science Digital Library

    Implicit association tests (IATs) measure the relative ease with which people are able to make associations between certain groups of people (e.g., older adults) and the concepts of "good" and "bad." This page provides information about how to use the implicit association test to illustrate social cognition

  12. Test Reviewing in Spain

    ERIC Educational Resources Information Center

    Muniz, Jose; Fernandez-Hermida, Jose R.; Fonseca-Pedrero, Eduardo; Campillo-Alvarez, Angela; Pena-Suarez, Elsa

    2012-01-01

    The proper use of psychological tests requires that the measurement instruments have adequate psychometric properties, such as reliability and validity, and that the professionals who use the instruments have the necessary expertise. In this article, we present the first review of tests published in Spain, carried out with an assessment model…

  13. Oxidase Test Protocol

    NSDL National Science Digital Library

    American Society For Microbiology

    2010-11-11

    The oxidase test is used to detect the presence of the enzyme cytochrome oxidase in microorganisms.  While used as a taxonomic tool for many microorganisms, the test was established initially to differentiate Neisseria spp. (oxidase positive) from Acinetobacter (oxidase negative) and Pseudomonas spp. (oxidase positive) from the Enterobacteriaceae (oxidase negative).

  14. Nuclear Tests in India

    NSDL National Science Digital Library

    de Nie, Michael Willem.

    1998-01-01

    This Week's In the News discusses the recent nuclear tests in India and the world's reaction to those tests. The ten resources discussed offer analysis, commentary, and background information from a variety of perspectives. On May 11, 1998, India confirmed what the world already knew by conducting three underground nuclear tests in the Pokhran Mountain Range in the Rajasthan Province. On May 13 two more sub-kiloton devices were exploded and the government announced that the planned series of tests was complete. Although India has indicated it may now be ready to sign on to the Comprehensive Test Ban Treaty (CTBT), reaction from the world community has been extremely negative. In the vanguard of this chorus of dissaproval has been the US, which announced over $20 billion in economic sanctions against India on May 13. The strongest critic of the tests, however, has been India's neighbor and rival Pakistan, which has fought three wars with India since 1947. Domestic pressure on Pakistani Prime Minister Nawaz Sharif to respond has been enormous and many commentators believe a Pakistani nuclear test is imminent. In India, however, the BJP-dominated government has been widely lauded. Many Indians have expressed pride and dismiss foreign criticism as a hypocritical holdover of colonial mentalities. While US sanctions are unlikely to have any large-scale effect on India, the end results of these tests on Indo-Pakistani relations and their ongoing missile race is yet to be seen.

  15. The Test Validation Summary

    ERIC Educational Resources Information Center

    Frederick, Richard I.; Bowden, Stephen C.

    2009-01-01

    Common rates employed in classificatory testing are the true positive rate (TPR), false positive rate (FPR), positive predictive power (PPP), and negative predictive power (NPP). FPR and TPR are estimated from research samples representing populations to be distinguished by classificatory testing. PPP and NPP are used by clinicians to classify…

  16. Standards for Objective Tests

    ERIC Educational Resources Information Center

    Tristan, Agustin; Vidal, Rafael

    2007-01-01

    A new book of standards for quality of tests has been published in Spanish, filling a gap on this field. The book includes 64 standards, comments, a companion questionnaire for self-evaluation and a planning schedule; with those tools a non-expert may understand the standards, and easily follow some procedures to design or to improve a test. The…

  17. Computerized Test Library.

    ERIC Educational Resources Information Center

    Gosser, Jon; And Others

    The application of a well-known and fairly simple information retrieval technology to the process of testing undergraduate college students is described. The Computerized Test Library allows the student and/or the professor to extract questions of varying difficulty covering whatever topic the student is studying; if the student performs at the…

  18. Auto Emission Testing

    NASA Technical Reports Server (NTRS)

    1979-01-01

    The photos show automobile engines being tested for nitrous oxide emissions, as required by the Environmental Protection Agency (EPA), at the Research and Engineering Division of Ford Motor Company, Dearborn. Michigan. NASA technical information helped the company develop a means of calculating emissions test results. Nitrous oxide emission readings vary with relative humidity in the test facility. EPA uses a standard humidity measurement, but the agency allows manufacturers to test under different humidity conditions, then apply a correction factor to adjust the results to the EPA standard. NASA's Dryden Flight Research Center developed analytic equations which provide a simple, computer-programmable method of correcting for humidity variations. A Ford engineer read a NASA Tech Brief describing the Dryden development and requested more detailed information in the form of a technical support package, which NASA routinely supplies to industry on request. Ford's Emissions Test Laboratory now uses the Dryden equations for humidity-adjusted emissions data reported to EPA.

  19. Undulator Transportation Test Results

    SciTech Connect

    Wolf, Zachary; Horton, Nick; Kharakh, David; Levashov, Yurii; Nuhn, Heinz-Dieter; Poling, Ben; Reese, Ed; /SLAC; ,

    2010-11-17

    A test was performed to determine whether transporting and handling the undulators makes any changes to their properties. This note documents the test. No significant changes to the test undulator were observed. After the LCLS undulators are tuned and fiducialized in the Magnetic Measurement Facility (MMF), they must be transported to storage buildings and transported to the tunnel. It has been established that the undulators are sensitive to temperature. We wish to know whether the undulators are also sensitive to the vibrations and shocks of transportation. To study this issue, we performed a test in which an undulator was measured in the MMF, transported to the tunnel, brought back to the MMF, and re-measured. This note documents the test and the results.

  20. Cylinder Test Specification

    SciTech Connect

    Richard Catanach; Larry Hill; Herbert Harry; Ernest Aragon; Don Murk

    1999-10-01

    The purpose of the cylinder testis two-fold: (1) to characterize the metal-pushing ability of an explosive relative to that of other explosives as evaluated by the E{sub 19} cylinder energy and the G{sub 19} Gurney energy and (2) to help establish the explosive product equation-of-state (historically, the Jones-Wilkins-Lee (JWL) equation). This specification details the material requirements and procedures necessary to assemble and fire a typical Los Alamos National Laboratory (LANL) cylinder test. Strict adherence to the cylinder. material properties, machining tolerances, material heat-treatment and etching processes, and high explosive machining tolerances is essential for test-to-test consistency and to maximize radial wall expansions. Assembly and setup of the cylinder test require precise attention to detail, especially when placing intricate pin wires on the cylinder wall. The cylinder test is typically fired outdoors and at ambient temperature.

  1. Nanomechanical testing system

    DOEpatents

    Vodnick, David James; Dwivedi, Arpit; Keranen, Lucas Paul; Okerlund, Michael David; Schmitz, Roger William; Warren, Oden Lee; Young, Christopher David

    2014-07-08

    An automated testing system includes systems and methods to facilitate inline production testing of samples at a micro (multiple microns) or less scale with a mechanical testing instrument. In an example, the system includes a probe changing assembly for coupling and decoupling a probe of the instrument. The probe changing assembly includes a probe change unit configured to grasp one of a plurality of probes in a probe magazine and couple one of the probes with an instrument probe receptacle. An actuator is coupled with the probe change unit, and the actuator is configured to move and align the probe change unit with the probe magazine and the instrument probe receptacle. In another example, the automated testing system includes a multiple degree of freedom stage for aligning a sample testing location with the instrument. The stage includes a sample stage and a stage actuator assembly including translational and rotational actuators.

  2. Low G accelerometer testing

    NASA Technical Reports Server (NTRS)

    Vaughan, M. S.

    1972-01-01

    Eight different types of low-g accelerometer tests are covered on the Bell miniature electrostatically suspended accelerometer (MESA) which is known to be sensitive to less than 10 to the minus 7th power earth's gravity. These tests include a mass attracting scheme, Leitz dividing head, Wild theodolite, precision gage blocks, precision tiltmeters, Hilger Watts autocollimator, Razdow Mark 2 autocollimator, and laser interferometer measuring system. Each test is described and a comparison of the results is presented. The output of the MESA was as linear and consistent as any of the available devices were capable of measuring. Although the extent of agreement varied with the test equipment used, it can only be concluded that the indicated errors were attributable to the test equipment coupled with the environmental conditions.

  3. 40 CFR 53.65 - Test procedure: Loading test.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ...REFERENCE AND EQUIVALENT METHODS Procedures for Testing Performance Characteristics of Class II Equivalent Methods for PM2.5 § 53.65 Test procedure: Loading test. (a) Overview. (1) The loading tests are designed to...

  4. 40 CFR 53.66 - Test procedure: Volatility test.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ...REFERENCE AND EQUIVALENT METHODS Procedures for Testing Performance Characteristics of Class II Equivalent Methods for PM2.5 § 53.66 Test procedure: Volatility test. (a) Overview. This test is designed to ensure that...

  5. 40 CFR 53.66 - Test procedure: Volatility test.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ...REFERENCE AND EQUIVALENT METHODS Procedures for Testing Performance Characteristics of Class II Equivalent Methods for PM2.5 § 53.66 Test procedure: Volatility test. (a) Overview. This test is designed to ensure that...

  6. 40 CFR 53.66 - Test procedure: Volatility test.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ...REFERENCE AND EQUIVALENT METHODS Procedures for Testing Performance Characteristics of Class II Equivalent Methods for PM2.5 § 53.66 Test procedure: Volatility test. (a) Overview. This test is designed to ensure that...

  7. 40 CFR 53.65 - Test procedure: Loading test.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ...REFERENCE AND EQUIVALENT METHODS Procedures for Testing Performance Characteristics of Class II Equivalent Methods for PM2.5 § 53.65 Test procedure: Loading test. (a) Overview. (1) The loading tests are designed to...

  8. 40 CFR 53.65 - Test procedure: Loading test.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ...REFERENCE AND EQUIVALENT METHODS Procedures for Testing Performance Characteristics of Class II Equivalent Methods for PM2.5 § 53.65 Test procedure: Loading test. (a) Overview. (1) The loading tests are designed to...

  9. Sensitivity of Rao's score test, the Wald test and the likelihood ratio test to nuisance parameters

    E-print Network

    Li, Bing

    Sensitivity of Rao's score test, the Wald test and the likelihood ratio test to nuisance parameters of the likelihood ratio test, Rao's score test, and the Wald test to the change of the nuisance parameters. The main. Some key words: Edgeworth expansion; Factorization; Likelihood ratio test; Nuisance parameter; Rao

  10. Non destructive testing of test objects.

    SciTech Connect

    Mills, Bernice E.

    2007-10-01

    In order to determine the visibility of various features by different techniques and in different settings, several test objects containing wires have been used as standards. Examples are shown of the use of x-ray and active thermal imaging for the detection of inclusions. The effect of x-ray accelerating voltage and confounding materials on the x-ray images is shown. Calculated transmission functions for selected materials at a range of voltages are given. The effect of confounding materials, finishes, and textures on thermography is shown and on x-radiography is discussed.

  11. Electron gun test report. [shock and vibration tests

    NASA Technical Reports Server (NTRS)

    1974-01-01

    Shock and vibration tests were performed to determine the electron optical properties of the electron gun. The test procedure included complete mechanical inspection including a dimensional check of all critical parts. Electrical inspection involved tests for dielectric strengths and element to element leakage resistance. All test circuits and equipment for each test are specified in the test plan.

  12. Multidimensional adaptive testing with constraints on test content

    Microsoft Academic Search

    Bernard P. Veldkamp; Wim J. van der Linden

    2002-01-01

    The case of adaptive testing under a multidimensional response model with large numbers of constraints on the content of the test is addressed. The items in the test are selected using a shadow test approach. The 0–1 linear programming model that assembles the shadow tests maximizes posterior expected Kullback-Leibler information in the test. The procedure is illustrated for five different

  13. Integrating Model-Based Testing with Evolutionary Functional Testing

    Microsoft Academic Search

    Felix Lindlar; Andreas Windisch; Joachim Wegener

    2010-01-01

    Evolutionary Functional Testing (EFT) is a relatively recent approach to automating the testing process. The research presented in this paper aims at increasing the acceptability of EFT in industrial settings. An approach suitable for efficiently and effectively testing complex continuous control systems is introduced. The main focus is on generating realistic test stimuli, enabling interactivity between test driver and test

  14. The mth Ratio Convergence Test and Other Unconventional Convergence Tests

    E-print Network

    Morrow, James A.

    -series . . . . . . . . . . . . . . . . . . . . . . . . 7 3.4.2 The Hypergeometric Series . . . . . . . . . . . . . . . . 7 3.4.3 Raabe's Test to highest, are: d'Alembert's ratio test, Raabe's test, Bertrand's test, Gauss's test, and finally, Kummer the convergence portion of Raabe's test. We will then conclude with the statement of the mth ratio convergence

  15. Predicting Test Bakery Requirements from Laboratory Mixing Tests

    Microsoft Academic Search

    S. Zounis; K. J. Quail

    1997-01-01

    The effects of mixer speeds and\\/or test bakery formulation on dough development times obtained from the standard farinograph and mixograph tests were studied for 28 hard wheat flour samples. Mixing curves using a test bakery formulation were also recorded in a test bakery pin mixer. Relationships between these tests and the bakery mixing requirement were determined. Each flour was test

  16. Reactor Simulator Testing Overview

    NASA Technical Reports Server (NTRS)

    Schoenfeld, Michael P.

    2013-01-01

    OBJECTIVE: Integrated testing of the TDU components TESTING SUMMARY: a) Verify the operation of the core simulator, the instrumentation and control system, and the ground support gas and vacuum test equipment. b) Thermal test heat regeneration design aspect of a cold trap purification filter. c) Pump performance test at pump voltages up to 150 V (targeted mass flow rate of 1.75 kg/s was not obtained in the RxSim at the originally constrained voltage of 120 V). TESTING HIGHLIGHTS: a) Gas and vacuum ground support test equipment performed effectively for NaK fill, loop pressurization, and NaK drain operations. b) Instrumentation and control system effectively controlled loop temperature and flow rates or pump voltage to targeted settings. c) Cold trap design was able to obtain the targeted cold temperature of 480 K. An outlet temperature of 636 K was obtained which was lower than the predicted 750 K but 156 K higher than the cold temperature indicating the design provided some heat regeneration. d) ALIP produce a maximum flow rate of 1.53 kg/s at 800 K when operated at 150 V and 53 Hz.

  17. Neuropsychological Testing of Astronauts

    NASA Technical Reports Server (NTRS)

    Flynn, Christopher; Vander Ark, Steve; Eksuzian, Daniel; Sipes, Walter; Kane, Robert; Vanderploeg, Rodney; Retzlaff, Paul; Elsmore, Tim; Moore, Jeffrey

    2004-01-01

    The Spaceflight Cognitive Assessment Tool for Windows (WinSCAT) is a computer program that administers a battery of five timed neuro-cognitive tests. WinSCAT was developed to give astronauts an objective and automated means of assessing their cognitive functioning during space flight, as compared with their own baseline performances measured during similar prior testing on the ground. WinSCAT is also intended for use by flight surgeons to assess cognitive impairment after exposure of astronauts to such cognitive assaults as head trauma, decompression sickness, and exposure to toxic gas. The tests were selected from among a group of tests, denoted the Automated Neuropsychological Assessment Metrics, that were created by the United States Navy and Army for use in evaluating the cognitive impairment of military personnel who have been subjected to medication or are suspected to have sustained brain injuries. These tests have been validated in a variety of clinical settings and are now in the public domain. The tests are presented in a Microsoft Windows shell that facilitates administration and enables immediate reporting of test scores in numerical and graphical forms.

  18. Sperm functional tests.

    PubMed

    Oehninger, Sergio; Franken, Daniel R; Ombelet, Willem

    2014-12-01

    Several semen parameters are used to discriminate the fertile male from the subfertile male. The most widely used parameters are sperm concentration, motility, progressive motility, and sperm morphology. Semen analysis is usually applied as described in the World Health Organization manual for semen analysis. In addition to a routine semen analysis, sperm functional tests have been described for many years, which in most cases are regarded as research tools and not part of the routine semen testing in an infertility clinic. In this review we report on the value of four sperm function tests: the sperm penetration assay, the sperm-zona pellucida binding tests, the acrosome reaction, and the hyaluronan binding assay. For each test we describe the current value, the indication for performing the test, how to interpret the results, and its therapeutic implications. Our data show that sperm functional assays are highly predictive of IVF outcome results and have the potential to assist in clinical decision making, especially to avoid the current long-standing treatment with IUI and to direct the patients to intracytoplasmic sperm injection without delay when sperm functional testing fails. We believe that advances in molecular biology techniques will allow us to develop simpler sperm function assays in the near future. This will undoubtedly help clinicians in optimizing male factor infertility diagnosis and treatment. PMID:25450304

  19. Reactor Simulator Testing

    NASA Technical Reports Server (NTRS)

    Schoenfeld, Michael P.; Webster, Kenny L.; Pearson, Boise Jon

    2013-01-01

    As part of the Nuclear Systems Office Fission Surface Power Technology Demonstration Unit (TDU) project, a reactor simulator test loop (RxSim) was design & built to perform integrated testing of the TDU components. In particular, the objectives of RxSim testing was to verify the operation of the core simulator, the instrumentation and control system, and the ground support gas and vacuum test equipment. In addition, it was decided to include a thermal test of a cold trap purification design and a pump performance test at pump voltages up to 150 V since the targeted mass flow rate of 1.75 kg/s was not obtained in the RxSim at the originally constrained voltage of 120 V. This paper summarizes RxSim testing. The gas and vacuum ground support test equipment performed effectively in NaK fill, loop pressurization, and NaK drain operations. The instrumentation and control system effectively controlled loop temperature and flow rates or pump voltage to targeted settings. The cold trap design was able to obtain the targeted cold temperature of 480 K. An outlet temperature of 636 K was obtained which was lower than the predicted 750 K but 156 K higher than the cold temperature indicating the design provided some heat regeneration. The annular linear induction pump (ALIP) tested was able to produce a maximum flow rate of 1.53 kg/s at 800 K when operated at 150 V and 53 Hz. Keywords: fission, space power, nuclear, liquid metal, NaK.

  20. Error response test system and method using test mask variable

    NASA Technical Reports Server (NTRS)

    Gender, Thomas K. (Inventor)

    2006-01-01

    An error response test system and method with increased functionality and improved performance is provided. The error response test system provides the ability to inject errors into the application under test to test the error response of the application under test in an automated and efficient manner. The error response system injects errors into the application through a test mask variable. The test mask variable is added to the application under test. During normal operation, the test mask variable is set to allow the application under test to operate normally. During testing, the error response test system can change the test mask variable to introduce an error into the application under test. The error response system can then monitor the application under test to determine whether the application has the correct response to the error.

  1. Rapid prototype and test

    SciTech Connect

    Gregory, D.L.; Hansche, B.D.

    1996-06-01

    In order to support advanced manufacturing, Sandia has acquired the capability to produce plastic prototypes using stereolithography. Currently, these prototypes are used mainly to verify part geometry and ``fit and form`` checks. This project investigates methods for rapidly testing these plastic prototypes, and inferring from prototype test data actual metal part performance and behavior. Performances examined include static load/stress response, and structural dynamic (modal) and vibration behavior. The integration of advanced non-contacting measurement techniques including scanning laser velocimetry, laser holography, and thermoelasticity into testing of these prototypes is described. Photoelastic properties of the epoxy prototypes to reveal full field stress/strain fields are also explored.

  2. Thermal test options

    SciTech Connect

    Koski, J.A.; Keltner, N.R.; Sobolik, K.B.

    1993-02-01

    Shipping containers for radioactive materials must be qualified to meet a thermal accident environment specified in regulations, such at Title 10, Code of Federal Regulations, Part 71. Aimed primarily at the shipping container design, this report discusses the thermal testing options available for meeting the regulatory requirements, and states the advantages and disadvantages of each approach. The principal options considered are testing with radiant heat, furnaces, and open pool fires. The report also identifies some of the facilities available and current contacts. Finally, the report makes some recommendations on the appropriate use of these different testing methods.

  3. Large space structures testing

    NASA Technical Reports Server (NTRS)

    Waites, Henry; Worley, H. Eugene

    1987-01-01

    There is considerable interest in the development of testing concepts and facilities that accurately simulate the pathologies believed to exist in future spacecraft. Both the Government and Industry have participated in the development of facilites over the past several years. The progress and problems associated with the development of the Large Space Structure Test Facility at the Marshall Flight Center are presented. This facility was in existence for a number of years and its utilization has run the gamut from total in-house involvement, third party contractor testing, to the mutual participation of other Government Agencies in joint endeavors.

  4. Breeder Reprocessing Engineering Test

    SciTech Connect

    Burgess, C.A.; Meacham, S.A.

    1984-01-01

    The Breeder Reprocessing Engineering Test (BRET) is a developmental activity of the US Department of Energy to demonstrate breeder fuel reprocessing technology while closing the fuel cycle for the Fast Flux Test Facility (FFTF). It will be installed in the existing Fuels and Materials Examination Facility (FMEF) at the Hanford Site near Richland, Washington, The major objectives of BRET are: (1) close the US breeder fuel cycle; (2) develop and demonstrate reprocessing technology and systems for breeder fuel; (3) provide an integrated test of breeder reactor fuel cycle technology - rprocessing, safeguards, and waste management. BRET is a joint effort between the Westinghouse Hanford Company and Oak Ridge National Laboratory. 3 references, 2 figures.

  5. Large space structures testing

    NASA Technical Reports Server (NTRS)

    Waites, Henry; Worley, H. Eugene

    1987-01-01

    There is considerable interest in the development of testing concepts and facilities that accurately simulate the pathologies believed to exist in future spacecraft. Both the Government and Industry have participated in the development of facilities over the past several years. The progress and problems associated with the development of the Large Space Structure Test Facility at the Marshall Flight Center are presented. This facility was in existence for a number of years and its utilization has run the gamut from total in-house involvement, third party contractor testing, to the mutual participation of other goverment agencies in joint endeavors.

  6. Testing agile requirements models.

    PubMed

    Botaschanjan, Jewgenij; Pister, Markus; Rumpe, Bernhard

    2004-05-01

    This paper discusses a model-based approach to validate software requirements in agile development processes by simulation and in particular automated testing. The use of models as central development artifact needs to be added to the portfolio of software engineering techniques, to further increase efficiency and flexibility of the development beginning already early in the requirements definition phase. Testing requirements are some of the most important techniques to give feedback and to increase the quality of the result. Therefore testing of artifacts should be introduced as early as possible, even in the requirements definition phase. PMID:15083546

  7. Thermography in undescended testes

    NASA Astrophysics Data System (ADS)

    Berghoff, Ruben; Sarti, Fernando; Urrutia, Azucena; Renee, Marcela; Lluesma, Eliseo G.

    2001-03-01

    Are one of the pathologies more frequent in infant surgery - intra-abdominal, inguinal or ectopic. With actual methods of diagnosis some inguinal and none of the abdominal are detectable. Change of temperature is one of the elements to explain the detection in the maturity and development of the testes. Hormonal stimuli are used to obtain the increase in the development and descent of the testis. In this research we will test if thermography can be an effective technology for the diagnosis in the localization and morphology testicular. Another important feature will be to test if thermography may detect some of the stimulus testis with induction hormonal.

  8. Modern Methods of Testing

    NASA Technical Reports Server (NTRS)

    Seeber, F

    1939-01-01

    After a brief survey of the commonly used single-value test methods, the importance of the determination of the incipient knock for the octane number is discussed and improvements suggested for the knock testing in the CFR engine. The DVL supercharge test method with its superiority of direct determination of fuel knock in each single cylinder of an airplane engine without involving structural changes, is described and the advantages of a multiple-value method enumerated. A diagrammatic presentation of the knock characteristics is presented.

  9. Luteinizing hormone (LH) blood test

    MedlinePLUS

    ICSH - blood test; Luteinizing hormone - blood test; Interstitial cell stimulating hormone - blood test ... to temporarily stop medicines that may affect the test results. Be sure to tell your provider about ...

  10. Toddler test or procedure preparation

    MedlinePLUS

    Preparing toddler for test/procedure; Test/procedure preparation - toddler; Preparing for a medical test or procedure - toddler ... Before the test, know that your child will probably cry. Even if you prepare, your child may feel some discomfort or ...

  11. Near Vision Test for Adults

    MedlinePLUS

    Near vision test for adults This test will check your close-up vision in each eye. Before you take this test, ... This test requires you to print the Near Vision Chart. The appearance of your printed chart may ...

  12. Celiac Disease Tests

    MedlinePLUS

    ... website will be limited. Search Help? Celiac Disease Antibody Tests Share this page: Was this page helpful? Also known as: Anti-tissue Transglutaminase Antibody; tTG; tTGA; Endomysial Antibody; EMA; DGP; ARA; Total ...

  13. Donath-Landsteiner test

    MedlinePLUS

    Anti-P antibody ... test is considered normal if no Donath-Landsteiner antibodies are present. Normal value ranges may vary slightly ... Abnormal results mean Donath-Landsteiner antibodies are present. This is a sign of paroxysmal cold hemoglobinuria.

  14. SHERPA Electromechanical Test Bed

    NASA Technical Reports Server (NTRS)

    Wason, John D.

    2005-01-01

    SHERPA (Strap-on High-altitude Entry Reconnaissance and Precision Aeromaneuver system) is a concept for low-cost-high-accuracy Martian reentry guidance for small scout-class missions with a capsule diameter of approximately 1 meter. This system uses moving masses to change the center of gravity of the capsule in order to control the lift generated by the controlled imbalance. This project involved designing a small proof-of-concept demonstration system that can be used to test the concept through bench-top testing, hardware-in-the-loop testing, and eventually through a drop test from a helicopter. This project has focused on the Mechatronic design aspects of the system including the mechanical, electrical, computer, and low-level control of the concept demonstration system.

  15. Antibody Blood Tests

    MedlinePLUS

    ... my positive antibody test suggests I may have celiac disease, how do I find out for sure? If ... For more information contact the University of Chicago Celiac Disease Center at 773.702.7593 or www.CeliacDisease. ...

  16. Test Your Asthma Knowledge

    MedlinePLUS

    ... Current Issue Past Issues Special Section Test Your Asthma Knowledge Past Issues / Fall 2007 Table of Contents ... page please turn Javascript on. True or False? Asthma is caused by an inflammation of the inner ...

  17. PPD skin test

    MedlinePLUS

    ... test is a method used to diagnose silent (latent) tuberculosis (TB) infection. PPD stands for purified protein ... lungs for many years. This situation is called latent TB. Most people in the United States who ...

  18. Five Common Glaucoma Tests

    MedlinePLUS

    ... of Test The inner eye pressure Tonometry The shape and color of the optic nerve Ophthalmoscopy (dilated eye exam) ... can see through your eye to examine the shape and color of the optic nerve. The doctor will then ...

  19. Get Tested for HIV

    MedlinePLUS

    ... medical records. If you are worried about giving your name, you can get an anonymous HIV test at ... means that you don’t have to give your name. What is HIV? HIV stands for human immunodeficiency ...

  20. Schilling test (image)

    MedlinePLUS

    ... Schilling test is performed to evaluate vitamin B12 absorption. B12 helps in the formation of red blood ... diseases, such as pernicious anemia, can result when absorption of vitamin B12 is inadequate.

  1. ALP - blood test

    MedlinePLUS

    ... bladder and bile ducts. In: Goldman L, Schafer AI, eds. Cecil Medicine . 24th ed. Philadelphia, Pa: Saunders ... or abnormal liver tests. In: Goldman L, Schafer AI, eds. Cecil Medicine . 24th ed. Philadelphia, Pa: Saunders ...

  2. Test What You Fly?

    NASA Astrophysics Data System (ADS)

    Margolies, Don

    2002-10-01

    It was the first time on any NASA project I know of that all the instruments on an observatory came off for rework or calibration after the full range of environmental tests, and then were reintegrated at the launch center without the benefit of an observatory environmental retest. Perhaps you've heard the expression, 'Test what you fly, fly what you test'? In theory, it's hard to argue with that. In this case, I was willing to take the risk of not testing what I flew. As the project manager for the Advanced Composition Explorer (ACE) mission, I was the one who ultimately decided what risks to take, just as it was my responsibility to get buy-in from the stakeholders.

  3. Partial Testing Design

    Cancer.gov

    Statistical Software Partial Testing Design (Written by Stuart G. Baker) New Approach (with ROC curves): See Baker SG, Pinsky P. A proposed design and analysis for comparing digital and analog mammography: special ROC methods for cancer screening. JASA.

  4. Test Your Sodium Smarts

    MedlinePLUS

    ... You may be surprised to learn how much sodium is in many foods. Sodium, including sodium chloride ... foods with little or no salt. Test your sodium smarts by answering these 10 questions about which ...

  5. The SAT's Great Test.

    ERIC Educational Resources Information Center

    Gose, Ben; Selingo, Jeffrey

    2001-01-01

    Explores how social, legal, and demographic forces threaten to dethrone the most widely used college entrance exam. New criticism focuses on the use of what is essentially an IQ test to measure students' ability to learn. (EV)

  6. Methylmalonic acid blood test

    MedlinePLUS

    ... acid is a substance produced when proteins (called amino acids) in the body break down. A test can ... Cederbaum S, Berry GT. Inborn errors of carbohydrate, ammonia, amino acid, and organic acid metabolism. In: Gleason CA, Devaskar ...

  7. Radon Testing in Schools.

    ERIC Educational Resources Information Center

    Wheeler, Robert

    1989-01-01

    Schools may be a significant source of radon exposure for children and staff. Describes radon detection kits and technologies, when to use them, and what action to take given the results of a radon test. (MLF)

  8. Final focus test beam

    SciTech Connect

    Not Available

    1991-03-01

    This report discusses the following: the Final Focus Test Beam Project; optical design; magnets; instrumentation; magnetic measurement and BPM calibration; mechanical alignment and stabilization; vacuum system; power supplies; control system; radiation shielding and personnel protection; infrastructure; and administration.

  9. DEVELOPMENTAL TOXICITY TESTING

    EPA Science Inventory

    Contemporary developmental toxicity testing focuses on the evaluation of a variety of adverse developmental effects which include structural malformations, intrauterine death, growth retardation, and deficits in postnatal function. n the extrapolation of information from animal s...

  10. Tests for H pylori

    MedlinePLUS

    ... special substance that has urea. Urea is a waste product the body produces as it breaks down protein. The urea used in the test has been made harmlessly radioactive. If H pylori are present, the bacteria convert ...

  11. Test What You Fly?

    NASA Technical Reports Server (NTRS)

    Margolies, Don

    2002-01-01

    It was the first time on any NASA project I know of that all the instruments on an observatory came off for rework or calibration after the full range of environmental tests, and then were reintegrated at the launch center without the benefit of an observatory environmental retest. Perhaps you've heard the expression, 'Test what you fly, fly what you test'? In theory, it's hard to argue with that. In this case, I was willing to take the risk of not testing what I flew. As the project manager for the Advanced Composition Explorer (ACE) mission, I was the one who ultimately decided what risks to take, just as it was my responsibility to get buy-in from the stakeholders.

  12. Testing existence of antigravity

    Microsoft Academic Search

    Dragan Slavkov Hajdukovic

    2006-01-01

    After a brief review of arguments in favor of antigravity (as gravitational repulsion between matter and antimatter) we present a simple idea for an experimental test using antiprotons. Different experimental realizations of the same basic idea are considered

  13. Testing existence of antigravity

    E-print Network

    Dragan Slavkov Hajdukovic

    2006-02-12

    After a brief review of arguments in favor of antigravity (as gravitational repulsion between matter and antimatter) we present a simple idea for an experimental test using antiprotons. Different experimental realizations of the same basic idea are considered

  14. Stomach acid test

    MedlinePLUS

    Gastric acid secretion test ... of the cells in the stomach to release acid, a hormone called gastrin may be injected into ... 3.5). These numbers are converted to actual acid production in units of milliequivalents per hour in ...

  15. Methylmalonic Acid Test

    MedlinePLUS

    ... this website will be limited. Search Help? Methylmalonic Acid Share this page: Was this page helpful? Also known as: MMA Formal name: Methylmalonic Acid Related tests: Vitamin B12 and Folate , Homocysteine , Intrinsic ...

  16. C-Peptide Test

    MedlinePLUS

    ... 18th Edition]. Pagana, Kathleen D. & Pagana, Timothy J. (2001). Mosby's Diagnostic and Laboratory Test Reference 5th Edition: ... medlineplus/ency/article/003701.htm . Tunis, S., et. al. (2001 May 14). Insulin Pump: C-Peptide levels as ...

  17. CEA blood test

    MedlinePLUS

    Carcinoembryonic antigen blood test ... A blood sample is needed. ... When the needle is inserted to draw blood, some people feel moderate pain. Others feel only a prick or stinging sensation. Afterward, there may be some throbbing or a slight bruise. ...

  18. Urine concentration test

    MedlinePLUS

    ... is most often done if your doctor suspects central diabetes insipidus . The test can help tell it ... eds. Henry’s Clinical Diagnosis and Management by Laboratory Methods . 22nd ed. Philadelphia, Pa: Elsevier Saunders; 2011:chap ...

  19. Japanese refrigerators field testing

    SciTech Connect

    Lou, A.T.

    1989-03-01

    Residential refrigerators consume the equivalent of 1700 megawatts (MW) of baseload power in the Bonneville Power Administration (BPA) service area. Japanese manufacturers have designed refrigerator units that appear more energy efficient than some currently available American models. This report summarizes preliminary findings from field testing of 12 refrigerators of Japanese manufacture to evaluate annual kilowatt hour (kWh) use during actual operation. The units have also undergone laboratory testing sponsored by BPA at ETL Testing Laboratories, Inc. in Cortland, New York. A final report of the project -- due at the end of 1989 -- will correlate in detail the results of field and laboratory tests in comparison to performance ratings determined by the manufacturer.

  20. Japanese Refrigerators Field Testing.

    SciTech Connect

    Lou, Albert T.

    1989-03-01

    Residential refrigerators consume the equivalent of 1700 megawatts (MW) of baseload power in the Bonneville Power Administration (BPA) service area. Japanese manufacturers have designed refrigerator units that appear more energy efficient than some currently available American models. This report summarizes preliminary findings from field testing of 12 refrigerators of Japanese manufacture to evaluate annual kilowatt hour (kWh) use during actual operation. The units have also undergone laboratory testing sponsored by BPA at ETL Testing Laboratories, Inc. in Cortland, New York. A final report of the project -- due at the end of 1989 -- will correlate in detail the results of field and laboratory tests in comparison to performance ratings determined by the manufacturer.

  1. Manipulator comparative testing program

    SciTech Connect

    Draper, J.V.; Handel, S.J.; Sundstrom, E.; Herndon, J.N.; Fujita, Y.; Maeda, M.

    1986-01-01

    The Manipulator Comparative Testing Program examined differences among manipulator systems from the United States and Japan. The manipulator systems included the Meidensha BILARM 83A, the Model M-2 of Central Research Laboratories Division of Sargent Industries (CRL), and the GCA Corporation PaR Systems Model 6000. The site of testing was the Remote Operations Maintenance Demonstration (ROMD) facility, operated by the Fuel Recycle Division in the Consolidated Fuel Reprocessing Program at the Oak Ridge National Laboratory (ORNL). In all stages of testing, operators using the CRL Model M-2 manipulator had consistently lower times to completion and error rates than they did using other machines. Performance was second best with the Meidensha BILARM 83A in master-slave mode. Performance with the BILARM in switchbox mode and the PaR 6000 manipulator was approximately equivalent in terms of criteria recorded in testing. These data show no impact of force reflection on task performance.

  2. ACE blood test

    MedlinePLUS

    ... to help diagnose and monitor a disorder called sarcoidosis . People with sarcoidosis may have their ACE level tested regularly to ... normal ACE level may be a sign of sarcoidosis. ACE level rises or falls as sarcoidosis worsens ...

  3. Regulation of Genetic Tests

    MedlinePLUS

    ... Edward Kennedy (D-MA) partnered with Senator Gordon Smith (R-OR) to co-author the Laboratory Test ... introduced by Senator Edward Kennedy and Senator Gordon Smith. August 2006 : Genomics and Personalized Medicine Act of ...

  4. Dementia: Diagnosis and Tests

    MedlinePLUS

    ... our e-newsletter! Aging & Health A to Z Dementia Diagnosis & Tests If you or someone you care ... To determine whether an older adult might have dementia, a healthcare professional will: Ask about the person’s ...

  5. Sickle Cell Tests

    MedlinePLUS

    ... Get Tested? Routinely as part of a newborn screen or whenever it is necessary to determine whether ... District of Columbia. If results of a newborn screen are abnormal, then one or more sickle cell ...

  6. Directory of Medical Tests

    MedlinePLUS

    ... Also known as a " triple marker " or quadruple screen depending on the number of things measured, this ... on the skin or by blood tests. Hearing screen. The American Academy of Pediatrics (AAP) recommends that ...

  7. Pleural Fluid Analysis Test

    MedlinePLUS

    ... set of tests (cell count, protein, albumin, or lactate dehydrogenase (LDH) level, and appearance of the fluid) ... on exudate fluid may include: Pleural fluid glucose, lactate, amylase, triglyceride, and/or tumor markers Microscopic examination – ...

  8. Antiparietal cell antibody test

    MedlinePLUS

    ... provider may use this test to help diagnose pernicious anemia. Pernicious anemia is a decrease in red blood cells that ... inflammation of the stomach lining) Diabetes Gastric ulcer Pernicious anemia Thyroid disease

  9. Osmotic fragility test

    MedlinePLUS

    ... test is done to detect hereditary spherocytosis and thalassemia . Hereditary spherocytosis makes red blood cells more fragile than normal. With thalassemia, red blood cells are more fragile than normal, ...

  10. Newborn screening tests

    MedlinePLUS

    ... March of Dimes and the American College of Medical Genetics suggest more than two dozen additional tests. The ... Saunders Elsevier; 2011:chap 707. American College of Medical Genetics Newborn Screening Expert Group. Newborn screening: toward a ...

  11. Understanding Prenatal Tests

    MedlinePLUS

    ... can be done before pregnancy or at the first prenatal visit. If there is Rh incompatibility, treatments can help prevent later complications. Ultrasound This test uses highfrequency sound waves to show internal organs and the growing ...

  12. Diagnostic Tests and Procedures

    MedlinePLUS

    ... physical examination, doctors will perform some basic tests. First, they may listen to your heart with a stethoscope. This is called auscultation, which means the study of heart sounds. Doctors are sometimes able to diagnose some types ...

  13. Objectives and Preparing Tests.

    ERIC Educational Resources Information Center

    Purohit, Anal A.; Bober, Kenneth F.

    1984-01-01

    The concepts behind, and construction of, specific behavioral objectives are examined as steps that are preliminary to evaluating student performance through tests. A taxonomy of educational objectives and guidelines in preparing them are outlined in detail. (MSE)

  14. Aperture Performance Assessment Test

    NASA Astrophysics Data System (ADS)

    Blair, William

    The purpose of this test is severalfold, all relating to the use of various observing strategies with different apertures and how they affect the resulting data quality. We will compare LWRS data taken with and without XOFFsets (e.g. dithering). We will attempt observations with the HIRS aperture, concentrating on LiF1, to see if significant gains in resolution can be made. Finally, additional testing of the MDRS-multiple PKUP per orbit strategy will be performed. It is expected that all of these tests will be performed on the same target in sequence, to minimize the variables and maximize information learned about the different techniques. Multiple runs of this test are anticipated with differing strategies for the detailed sequence of activities.

  15. Genetic Testing for ALS

    MedlinePLUS

    ... Share Print Familial Amyotrophic Lateral Sclerosis (FALS) and Genetic Testing By Deborah Hartzfeld, MS, CGC, Certified Genetic ... guarantee a person will develop symptoms of ALS. Genetic Counseling If there is more than one person ...

  16. B Vitamins Test

    MedlinePLUS

    ... Is there anything else I should know? A person may sometimes be diagnosed and treated for a B vitamin deficiency based upon clinical findings and a response to treatment, rather than testing. For instance, if ...

  17. Tips on Blood Testing

    MedlinePLUS

    Proceeds from website advertising help sustain Lab Tests Online. AACC is a not-for-profit organization and does not endorse non-AACC products and services. Advertising & Sponsorship: Policy | Opportunities PLEASE NOTE: Your web browser ...

  18. Newborn test (image)

    MedlinePLUS

    The newborn is commonly assessed with the APGAR score, a quick test performed at 1 and 5 minutes after birth to determine the physical condition of the newborn. The five categories assessed are heart rate, respiratory ...

  19. ACTH (cosyntropin) stimulation test

    MedlinePLUS

    The ACTH stimulation test measures how well the adrenal glands respond to adrenocorticotropic hormone ( ACTH ). ACTH is a ... produced in the pituitary gland that stimulates the adrenal glands to release a hormone called cortisol. The man- ...

  20. Trypsin and Chymotrypsin Test

    MedlinePLUS

    ... What is being tested? Trypsin and chymotrypsin are enzymes that digest protein in the small intestine. Their ... damage causes pancreatic insufficiency because the amount of enzymes transported to the small intestine is inadequate for ...

  1. Routine Tests in Pregnancy

    MedlinePLUS

    ... show? A urine culture tests your urine for bacteria , which can be a sign of a urinary ... such as bacteria and viruses that cause infection. Bacteria: One-celled organisms that can cause infections in ...

  2. Growth hormone suppression test

    MedlinePLUS

    ... level of GH, a condition that leads to gigantism in children and acromegaly in adults. It is ... during the suppression test, the doctor will suspect gigantism or acromegaly. You may need to be retested ...

  3. Space Electronic Test Engineering

    NASA Technical Reports Server (NTRS)

    Chambers, Rodney D.

    2004-01-01

    The Space Power and Propulsion Test Engineering Branch at NASA Glenn Research center has the important duty of controlling electronic test engineering services. These services include test planning and early assessment of Space projects, management and/or technical support required to safely and effectively prepare the article and facility for testing, operation of test facilities, and validation/delivery of data to customer. The Space Electronic Test Engineering Branch is assigned electronic test engineering responsibility for the GRC Space Simulation, Microgravity, Cryogenic, and Combustion Test Facilities. While working with the Space Power and Propulsion Test Engineering Branch I am working on several different assignments. My primary assignment deals with an electrical hardware unit known as Sunny Boy. Sunny Boy is a DC load Bank that is designed for solar arrays in which it is used to convert DC power form the solar arrays into AC power at 60 hertz to pump back into the electricity grid. However, there are some researchers who decided that they would like to use the Sunny Boy unit in a space simulation as a DC load bank for a space shuttle or even the International Space Station hardware. In order to do so I must create a communication link between a computer and the Sunny Boy unit so that I can preset a few of the limits (such power, set & constant voltage levels) that Sunny Boy will need to operate using the applied DC load. Apart from this assignment I am also working on a hi-tech circuit that I need to have built at a researcher s request. This is a high voltage analog to digital circuit that will be used to record data from space ion propulsion rocket booster tests. The problem that makes building this circuit so difficult is that it contains high voltage we must find a way to lower the voltage signal before the data is transferred into the computer to be read. The solution to this problem was to transport the signal using infrared light which will lower the voltage signal down low enough so that it is harmless to a computer. Along with my involvement in the Space Power and Propulsion Test Engineering Branch, I am obligated to assist all other members of the branch in their work. This will help me to strengthen and extend my knowledge of Electrical Engineering.

  4. Advanced Duct Sealing Testing

    SciTech Connect

    Sherman, Max H.; Walker, Iain S.

    2003-08-01

    Duct leakage has been identified as a major source of energy loss in residential buildings. Most duct leakage occurs at the connections to registers, plenums or branches in the duct system. At each of these connections a method of sealing the duct system is required. Typical sealing methods include tapes or mastics applied around the joints in the system. Field examinations of duct systems have typically shown that these seals tend to fail over extended periods of time. The Lawrence Berkeley National Laboratory has been testing sealant durability for several years. Typical duct tape (i.e. fabric backed tapes with natural rubber adhesives) was found to fail more rapidly than all other duct sealants. This report summarizes the results of duct sealant durability testing of five UL 181B-FX listed duct tapes (three cloth tapes, a foil tape and an Oriented Polypropylene (OPP) tape). One of the cloth tapes was specifically developed in collaboration with a tape manufacturer to perform better in our durability testing. The first test involved the aging of common ''core-to-collar joints'' of flexible duct to sheet metal collars, and sheet metal ''collar-to-plenum joints'' pressurized with 200 F (93 C) air. The second test consisted of baking duct tape specimens in a constant 212 F (100 C) oven following the UL 181B-FX ''Temperature Test'' requirements. Additional tests were also performed on only two tapes using sheet metal collar-to-plenum joints. Since an unsealed flexible duct joint can have a variable leakage depending on the positioning of the flexible duct core, the durability of the flexible duct joints could not be based on the 10% of unsealed leakage criteria. Nevertheless, the leakage of the sealed specimens prior to testing could be considered as a basis for a failure criteria. Visual inspection was also documented throughout the tests. The flexible duct core-to-collar joints were inspected monthly, while the sheet metal collar-to-plenum joints were inspected weekly. The baking test specimens were visually inspected weekly, and the durability was judged by the observed deterioration in terms of brittleness, cracking, flaking and blistering (the terminology used in the UL 181B-FX test procedure).

  5. Crystallization tests bench

    NASA Astrophysics Data System (ADS)

    Cabric, B.; Janicijevic, A.; Danilovic, N.

    2013-01-01

    A model of an air-cooled tube ("air-heat saw") installed in a laboratory tube furnace is presented. The setup ("crystallization tests bench") allows easy regulation and simultaneous crystallization tests of a series of different crystallization parameters in crucible columns, enabling fast studies of obtaining crystals from materials with unknown crystallization parameters. The relationships between the crystallization rate and parameters of air-cooled tube are given and numerically analyzed. This method can also be applied in crucible or chamber furnaces.

  6. Starter/generator testing

    NASA Astrophysics Data System (ADS)

    Anon

    1994-10-01

    Sundstrand Aerospace and GE Aircraft Engines have studied the switched reluctance machine for use as an integral starter/generator for future aircraft engines. They have conducted an initial, low-power testing of the starter/generator, which is based on power inverters using IGBT-technology semiconductors, to verify its feasibility in the externally mounted version of the integral starter/generator. This preliminary testing of the 250-kW starter/generator reveals favorable results.

  7. Food allergy testing.

    PubMed

    Unsworth, David J; Lock, Robert J

    2014-01-01

    Food allergy (IgE-mediated hypersensitivity) is a common clinical problem affecting approximately 15% of children in the Western world. These hypersensitivity reactions tend to be "immediate" (typically within minutes of food exposure), and clinical features may range from mild to life threatening (anaphylaxis). Detailed clinical history is critical to correct diagnosis. Available laboratory tests have limitations not least poor positive predictive value and limited repertoire. Laboratory tests should support clinical diagno sis not vice versa. PMID:25233614

  8. Safer Aviation Materials Tested

    NASA Technical Reports Server (NTRS)

    Palaszewski, Bryan A.

    2001-01-01

    A series of thermally stable polymer samples were tested. These materials are called low heat release materials and are designed for aircraft interior decorative materials. The materials are designed to give off a minimum amount of noxious gases when heated, which increases the possibility that people can escape from a burning aircraft. New cabin materials have suitably low heat release so that fire does not spread, toxic chemicals are not given off, and the fire-emergency escape time for crew and passengers is lengthened. These low heat-release materials have a variety of advantages and applications: interiors for ground-based facilities, interiors of space vehicles, and many commercial fire-protection environments. A microscale combustion calorimeter at the Federal Aviation Administration's (FAA) Technical Center tested NASA Langley Research Center materials samples. The calorimeter is shown. A sharp, quantitative, and reproducible heat-release-rate peak is obtained in the microscale heat-release-rate test. The newly tested NASA materials significantly reduced the heat release capacity and total heat release. The thermal stability and flammability behavior of the samples was very good. The new materials demonstrated a factor of 4 reduction in total heat release over ULTEM (a currently used material). This information is provided in the following barchart. In other tests, the materials showed greater than a factor 9 reduction in heat-release capacity over ULTEM. The newly tested materials were developed for low dielectric constant, low color, and good solubility. A scale up of the material samples is needed to determine the repeatability of the performance in larger samples. Larger panels composed of the best candidate materials will be tested in a larger scale FAA Technical Center fire facility. The NASA Glenn Research Center, Langley (Jeff Hinkley), and the FAA Technical Center (Richard Lyon) cooperatively tested these materials for the Accident Mitigation aspects of Fire Prevention under NASA's Aviation Safety Program.

  9. Conduit Coating Abrasion Testing

    NASA Technical Reports Server (NTRS)

    Sullivan, Mary K.

    2013-01-01

    During my summer internship at NASA I have been working alongside the team members of the RESTORE project. Engineers working on the RESTORE project are creating ·a device that can go into space and service satellites that no longer work due to gas shortage or other technical difficulties. In order to complete the task of refueling the satellite a hose needs to be used and covered with a material that can withstand effects of space. The conduit coating abrasion test will help the researchers figure out what type of thermal coating to use on the hose that will be refueling the satellites. The objective of the project is to determine whether or not the conduit coating will withstand the effects of space. For the RESTORE project I will help with various aspects of the testing that needed to be done in order to determine which type of conduit should be used for refueling the satellite. During my time on the project I will be assisting with wiring a relay board that connected to the test set up by soldering, configuring wires and testing for continuity. Prior to the testing I will work on creating the testing site and help write the procedure for the test. The testing will take place over a span of two weeks and lead to an informative conclusion. Working alongside various RESTORE team members I will assist with the project's documentation and records. All in all, throughout my internship at NASA I hope to learn a number of valuable skills and be a part of a hard working team of engineers.

  10. Infant Pulmonary Function Testing

    PubMed Central

    Davis, Stephanie D.

    2011-01-01

    Infant pulmonary function testing has evolved from a research technique into a diagnostic tool. As such, new current procedural terminology (CPT) codes have been created and are available for use as of January 1, 2010. The technology now available has a range of applications. Through a series of vignettes, this article illustrates the methodology of the tests, some of their applications, and how to code and bill for the procedures. PMID:21540218

  11. Chi Square Tests

    NSDL National Science Digital Library

    The eighth chapter of an online Introduction to Biostatistics course created by the faculty at the University of Massachusetts - Amherst. Lecture notes are provided and links for additional reading and exercises with solutions are provided. Topics covered by the entire site include: data summarization, introduction to probability, population and sampling, Bernoulli and binomial distribution, normal distributions, methods of estimation, hypothesis testing, chi square tests and correlation and regression methods. This is a comprehensive subset of this introduction to biostatistics.

  12. First Stage Acceptance Test

    NASA Technical Reports Server (NTRS)

    1960-01-01

    This photograph shows the intense smoke and fire created by the five F-1 engines from a test firing of the Saturn V first stage (S-1C) in the S-1C test stand at the Marshall Space Flight Center. The towering 363-foot Saturn V was a multi-stage, multi-engine launch vehicle standing taller than the Statue of Liberty. Altogether, the Saturn V engines produced as much power as 85 Hoover Dams.

  13. Functional Task Test (FTT)

    NASA Technical Reports Server (NTRS)

    Bloomberg, Jacob J.; Mulavara, Ajitkumar; Peters, Brian T.; Rescheke, Millard F.; Wood, Scott; Lawrence, Emily; Koffman, Igor; Ploutz-Snyder, Lori; Spiering, Barry A.; Feeback, Daniel L.; Platts, Steven H.; Stenger, Michael B.; Lee, Stuart M.C.; Arzeno, Natalia; Feiveson, Alan H.; Ryder, Jeffrey; Garcia, Yamil; Guilliams, Mark E.

    2009-01-01

    This slide presentation reviews the Functional Task Test (FTT), an interdisciplinary testing regimen that has been developed to evaluate astronaut postflight functional performance and related physiological changes. The objectives of the project are: (1) to develop a set of functional tasks that represent critical mission tasks for the Constellation Program, (2) determine the ability to perform these tasks after space flight, (3) Identify the key physiological factors that contribute to functional decrements and (4) Use this information to develop targeted countermeasures.

  14. AMSD Test Plan

    NASA Technical Reports Server (NTRS)

    Stahl, H. Philip; Hadaway, James; Burdine, Robert (Technical Monitor)

    2001-01-01

    NASA MSFC is the lead center on the Advanced Mirror System Demonstrator (AMSD) project and therefore has responsibility for testing each AMSD mirror to certify its compliance with the SOW. To accomplish this task it is necessary to accurately characterize each mirror's Radius of Curvature, Optical Axis Vertex Location, Conic Constant and Surface Figure Error. A key challenge is how to measure these parameters in the presence of gravity sag. This presentation will outline the MSFC/UAH team's proposed AMSD test plan.

  15. SCSI Communication Test Bus

    NASA Technical Reports Server (NTRS)

    Hua, Chanh V.; D'Ambrose, John J.; Jaworski, Richard C.; Halula, Elaine M.; Thornton, David N.; Heligman, Robert L.; Turner, Michael R.

    1990-01-01

    Small Computer System Interface (SCSI) communication test bus provides high-data-rate, standard interconnection enabling communication among International Business Machines (IBM) Personal System/2 Micro Channel, other devices connected to Micro Channel, test equipment, and host computer. Serves primarily as nonintrusive input/output attachment to PS/2 Micro Channel bus, providing rapid communication for debugger. Opens up possibility of using debugger in real-time applications.

  16. Duct Tape Durability Testing

    SciTech Connect

    Sherman, Max H.; Walker, Iain S.

    2004-04-01

    Duct leakage is a major source of energy loss in residential buildings. Most duct leakage occurs at the connections to registers, plenums, or branches in the duct system. At each of these connections, a method of sealing the duct system is required. Typical sealing methods include tapes or mastics applied around the joints in the system. Field examinations of duct systems have shown that taped seals tend to fail over extended periods of time. The Lawrence Berkeley National Laboratory (LBNL) has been testing sealant durability for several years using accelerated test methods and found that typical duct tape (i.e., cloth-backed tapes with natural rubber adhesives) fails more rapidly than other duct sealants. This report summarizes the results of duct sealant durability testing over two years for four UL 181B-FX listed duct tapes (two cloth tapes, a foil tape and an Oriented Polypropylene (OPP) tape). One of the cloth tapes was specifically developed in collaboration with a tape manufacturer to perform better in our durability testing. The tests involved the aging of common ''core-to-collar joints'' of flexible duct to sheet metal collars. Periodic air leakage tests and visual inspection were used to document changes in sealant performance. After two years of testing, the flex-to-collar connections showed little change in air leakage, but substantial visual degradation from some products. A surprising experimental result was failure of most of the clamps used to mechanically fasten the connections. This indicates that the durability of clamps also need to be addressed ensure longevity of the duct connection. An accelerated test method developed during this study has been used as the basis for an ASTM standard (E2342-03).

  17. Multishaker modal testing

    NASA Technical Reports Server (NTRS)

    Craig, Roy R., Jr.

    1987-01-01

    The major accomplishments of this research are: (1) the refinement and documentation of a multi-input, multi-output modal parameter estimation algorithm which is applicable to general linear, time-invariant dynamic systems; (2) the development and testing of an unsymmetric block-Lanzcos algorithm for reduced-order modeling of linear systems with arbitrary damping; and (3) the development of a control-structure-interaction (CSI) test facility.

  18. Diesel Engine Idling Test

    SciTech Connect

    Larry Zirker; James Francfort; Jordon Fielding

    2006-02-01

    In support of the Department of Energy’s FreedomCAR and Vehicle Technology Program Office goal to minimize diesel engine idling and reduce the consumption of millions of gallons of diesel fuel consumed during heavy vehicle idling periods, the Idaho National Laboratory (INL) conducted tests to characterize diesel engine wear rates caused by extended periods of idling. INL idled two fleet buses equipped with Detroit Diesel Series 50 engines, each for 1,000 hours. Engine wear metals were characterized from weekly oil analysis samples and destructive filter analyses. Full-flow and the bypass filter cartridges were removed at four stages of the testing and sent to an oil analysis laboratory for destructive analysis to ascertain the metals captured in the filters and to establish wear rate trends. Weekly samples were sent to two independent oil analysis laboratories. Concurrent with the filter analysis, a comprehensive array of other laboratory tests ascertained the condition of the oil, wear particle types, and ferrous particles. Extensive ferrogram testing physically showed the concentration of iron particles and associated debris in the oil. The tests results did not show the dramatic results anticipated but did show wear trends. New West Technologies, LLC, a DOE support company, supplied technical support and data analysis throughout the idle test.

  19. Obstacles in Haemocompatibility Testing

    PubMed Central

    van Oeveren, W.

    2013-01-01

    ISO 10993-4 is an international standard describing the methods of testing of medical devices for interactions with blood for regulatory purpose. The complexity of blood responses to biomaterial surfaces and the variability of blood functions in different individuals and species pose difficulties in standardisation. Moreover, in vivo or in vitro testing, as well as the clinical relevance of certain findings, is still matter of debate. This review deals with the major remaining problems, including a brief explanation of surface interactions with blood, the current ISO 10993 requirements for testing, and the role of in vitro test models. The literature is reviewed on anticoagulation, shear rate, blood-air interfaces, incubation time, and the importance of evaluation of the surface area after blood contact. Two test categories deserve further attention: complement and platelet function, including the effects on platelets from adhesion proteins, venipuncture, and animal derived- blood. The material properties, hydrophilicity, and roughness, as well as reference materials, are discussed. Finally this review calls for completing the acceptance criteria in the ISO standard based on a panel of test results. PMID:24278774

  20. Comprehensive test ban negotiations

    NASA Astrophysics Data System (ADS)

    Grab, G. Allen; Heckrotte, Warren

    1983-10-01

    Although it has been a stated policy goal of American and Soviet leaders since 1958 (with the exception of Ronald Reagan), the world today is still without a Comprehensive Test Ban Treaty. Throughout their history, test an negotiatins have been plagued by a number of persistent problems. Chief among these is East-West differences on the verification question, with the United States concerned about the problem of possible Soviet cheating and the USSR concerned about the protection of its national sovereignty. In addition, internal bureaucratic politics have played a major role in preventing the successful conclusion of an agreement. Despite these problems, the superpowers have concluded several significant partial meausres: a brief (1958-1961) total moratorium on nuclear weapons tests; the Limited Test Ban Treaty of 1963, banning tests in the air, water and outer space; the Threshold Test Ban Treaty of 1974 (150 KT limit on underground explosions); and the Peaceful Nuclear Explosions Treaty of 1976 (150 KT limit on individal PNEs). Today, the main U.S. objections to a CTBT center is the nuclear weapons laboratories, the Department of Energy, and the Pentagon, who all stress the issues of stockpile reliability and verification. Those who remain committed to a CTBT emphasize and the potential political leverage it offers in checking both horizontal and vertical proliferation.