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Armstrong Laboratory (U.S.)

Works: 379 works in 498 publications in 1 language and 21,778 library holdings
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Most widely held works about Armstrong Laboratory (U.S.)
Most widely held works by Armstrong Laboratory (U.S.)
Integrated Maintenance Information System : user field demonstration and test executive summary by Donald L Thomas( Book )

2 editions published in 1995 in English and held by 165 WorldCat member libraries worldwide

This Executive Summary summarizes the results of a field test and demonstration of the Integrated Maintenance Information System (IMIS). The IMIS project was an advanced development demonstration project which developed and field tested the technology to provide the maintenance technician with the capability to access all of the technical information (interactive electronic technical manuals, interactive diagnostics instructions, work orders, supply availability and ordering, historical data, training material, etc.) required to maintain aircraft via a single, integrated system, regardless of the source of that information. In the final phase of the project, an IMIS Demonstration System was developed and tested. In the field test, the performance of technicians on troubleshooting tasks when using the IMIS was compared with their performance on comparable tasks when using the paper technical orders. Test results indicated that technicians were able to perform the tasks significantly faster, used fewer parts, and made fewer serious errors when using the IMIS. In addition, the test indicated that, when using the IMIS, non-specialist (crew chief) technicians could perform the tasks as effectively as the specialists
CATS EYES adjustment procedures by Joseph C Antonio( Book )

3 editions published in 1993 in English and held by 165 WorldCat member libraries worldwide

Night vision goggles (NVGs) have been employed in a variety of aircraft for over twenty years. However, only recently has their application begun in fixed-wing fast movers. Research accomplished by the Night Vision Programs Office at the Aircrew Training Research Division of the USAF Armstrong Laboratory demonstrated the loss of NVG performance resulting from improper adjustments. This report describes correct adjustment procedures for the F4949 NVG system. The procedures described were developed so aircrews could take advantage of the adjustments available on the NVGS. Additionally, image descriptions are given to help aircrews evaluate NVG performance. Information on the proper equipment/space needed for proper evaluation is also included. RMS, Eye lane, IPD, NVG, Adjustment procedures, F4949, Night vision devices, Alignment procedures, Focusing procedures, Night vision goggles, Diopter, Interpupillary distance, NVD
Smooth eye movement response to complex motion sequences by Julie Mapes Lindholm( Book )

1 edition published in 1996 in English and held by 97 WorldCat member libraries worldwide

To examine the spatiotemporal properties of the motion sensors for the smooth pursuit system, we presented horizontal motion sequences in which successive target displacements were in accord with a composite waveform representing the sum of a constant velocity ramp and a sawtooth. The sequences differed in global velocity (GV = ramp velocity = 0 or 4 deg/sec), local velocity (LV = ramp velocity + sawtooth velocity = -8 or -4 deg/sec, for GV =0, and -8, -4,0, 8, 12 deg/sec, for GV = 4), and local-segment duration (12 values between 67 and 700 msec). When the duration of a local-velocity segment was relatively short C less than or equal to 133 msec, for GV =4 deg/sec; less than or equal to 200 msec, For GY =0 deg/sec), mean pursuit velocity matched the GV. As the segment duration increased, mean pursuit velocity shifted gradually toward the LV. Changes in cumulative saccadic amplitude mirrored the changes in smooth pursuit velocity. The spatiotemporal-frequency spectra of the motion sequences suggested that the pursuit system responded in accord with the drift velocities of very low spatial frequencies. The spectra of the space-time retinal images suggested that pursuit was maintained not by the absence of retinal image motion but by the presence of appreciable spectral energy for components with a drift velocity of approximately zero
Beyond word processing : using an interactive learning environment to teach writing by Patricia Ann Carlson( Book )

1 edition published in 1996 in English and held by 96 WorldCat member libraries worldwide

This study examines whether computer-aided instruction that explicitly models the process of composing for basic writers is more effective than traditional classroom instruction. Three objectives guided the research: to determine the basic quality of essays from the treatment and the control group using standard, holistic rating methods; to infer cognitive development by measuring improvement along four separate measures using an analytic scale; to determine whether initial aptitude was a factor in performance differences. Eight-hundred and fifty-two eighth-grade English students (423 in the control group and 429 in the treatment group) completed a 40-minute transactional writing sample at the beginning and at the end of a 16-week semester. The results show that the group using a computerized cognition facilitator outperformed the group taught only in the traditional classroom both on the holistic and on the analytical measures. Additionally, when the population was partitioned to reflect initial ability the treatment group in the lower segment showed marked improvement, whereas the high-end segment of the treatment group produced no significant gain. When partitioned in the same manner, the high-end for the control group degraded in performance, while the lower-end control improved both on the holistic and the analytic measures
Objective wing alternatives and logistics issues( Book )

3 editions published in 1992 in English and held by 89 WorldCat member libraries worldwide

Integrated Model Development Environment (IMDE) support for Air Force logistics by Todd Carrico( Book )

1 edition published in 1996 in English and held by 88 WorldCat member libraries worldwide

This report documents research performed for the Integrated Model Development Environment (IMDE) by Armstrong Laboratory, Logistics Research Division, Wright-Patterson AFB, Ohio. IMDE is a simulation development system designed to demonstrate how an object oriented modeling approach embedded within a graphical user interface could make large-scale logistics models easier to develop and less expensive to maintain, as well as improving configuration control, data analysis, collaborative development, and model reuse. The IMDE system was demonstrated through the development of an object-oriented fighter airbase logistics model. A significant achievement in the effort was the automated conversion of Logistics Composite Model (LCOM) into IMDE objects
A comparison and integration of three training evaluation approaches : effectiveness, utility, and anticipatory evaluation of training by George M Alliger( Book )

1 edition published in 1996 in English and held by 87 WorldCat member libraries worldwide

This report provides a brief overview of three methods, or general approaches, to judging the usefulness of training. The first method or approach is the traditional evaluation approach of training effectiveness evaluation. This method or approach centers on estimations of training effect size and the determination of the statistical significance of those training effects. Thus, in this first category standard pre(post analyses and control group comparisons are included. Next traditional training utility analysis, or training utility evaluation is reviewed here, costs and benefits of training are always contrasted in some way in determining traditional utility analysis. This branch of evaluation traces its roots back to Brogden & Taylor (1950), who discussed the need to examine the dollar criterion. Finally, anticipatory training evaluation is discussed Anticipatory training evaluation examines what kinds of training will have the greatest effectiveness and utility, given a variety of parameters and choices. The primary tool in anticipatory evaluation is Multi-Attribute Utility analysis (MAU). As opposed to training effectiveness and training utility evaluation, MAU is designed explicitly as a decision tool. It can be used most effectively as an anticipatory evaluation, the results of which facilitates planning for training. A detailed example of the development and application of MAU is described in this report, since it is the least well known of the three approaches to researchers and practitioners in the training are. In explicating this expanded view of training evaluation, this report attempts to represent state-of-the-art understanding and research; thus current issues like risk and uncertainty in input and output evaluation and utility indices, and problems in transfer of learned skills to the job, are addressed in appropriate contexts
A comparitive assessment of alternative models of factors perceived to contribute to success in international assignments by Winfred Arthur( Book )

1 edition published in 1996 in English and held by 87 WorldCat member libraries worldwide

Using Campbell's (1990) theory of job performance, the present study sought to identify the factors underlying the job performance of international assignees and their relative importance. Four alternative models of international assignee job performance were also evaluated. Subjects were 338 international assignees from diverse countries (nationality) and organizations, assigned to diverse countries, and performing diverse jobs. Although eight factors were identified as hypothesized, the content and labels of these factors differed from those postulated by the theory. The eight job performance factors in descending order of importance were Flexibility, Family Situation, Management/Administration, Integrity, Effort, Tolerance, Cross-Cultural Interest, and Openness. Factor importance ratings were also influenced by position (managerial/non-managerial status), organizational type, international assignees' nationality, the country to which they were assigned, and cultural distance (similarity between nationality and assigned country). Finally, although military personnel were excluded from this study since they typically are assigned to places where their culture is present in some form (e.g., they are assigned to a U.S. military base), the factors identified as being important for international assignees, in general, should also be considered as part of the assignment process and in job design and redesign for military personnel in foreign postings. The importance of these factors should also be considered when developing the cultural training and education programs for military personnel prior to their assignment within non-US host countries. The likelihood that these factors may serve as predictors of the success of a military member in a foreign assignment in a manner similar to that of non-military personnel must be considered and addressed
Applying neural networks to Air Force personnel analysis by Vince L Wiggins( Book )

3 editions published in 1992 in English and held by 87 WorldCat member libraries worldwide

The principal objective of this task involved evaluating artificial neural networks for application to personnel modeling by examining areas representative of many personnel models. The four areas chosen were airmen re- enlistment, the determinants of reenlistment, and the effects of policy levers; pilot training and more specifically the likelihood of candidates successfully completing Undergraduate Pilot Training; projection of aggregate time series personnel flow rates; and productive capacity of airmen as it relates to aptitude and experience. In addition, the productive capacity analysis was expanded into a working computer prototype allowing the user to examine the effect of changing aptitude/experience mixes on productive capacity. Performance was compared against traditional techniques such as regression analysis. Artificial neural networks, Learning vector quantization, Probabilistic networks, Back propagation, Personnel system modeling
Image update rate can affect the perceived speed of simulated self-motion by Julie Mapes Lindholm( Book )

1 edition published in 1996 in English and held by 87 WorldCat member libraries worldwide

The update rate of an image generator affects the spatiotemporal representation of a time-varying scene and thus, potentially, an observer's percept during observation of the display image. In the first part of this report, we discuss image generation technology and sampling theory, and we present an analysis of the temporal frequencies in a space-time image representing constant-velocity, constant-altitude flight over a flat, textured terrain. In the second part, we report the results of two experiments in which a two-alternative, forced-choice method of constant stimuli was used to investigate the effects of image update rate (30 Hz vs 60 Hz) on the perceived speed of self motion. We found that perceived speed was higher with the lower update rate when the original image, internal to the computer, contained very high temporal frequencies, and the display image, therefore, contained a large number of spatiotemporal frequencies, within the bandpass of the human visual system, which had the wrong drift direction
Design considerations for an on-screen keyboard by Laurie Larsen Quill( Book )

1 edition published in 1996 in English and held by 87 WorldCat member libraries worldwide

This study tested & evaluated 3 on-screen keyboard arrangements with indirect input devices. in this study, finger placement & non-finger placement typists provided data for Stimulus Type (word vs. non-words), input Devices (mouse vs. arrow keys), & Keyboard Arrangements (i-row alphabetical, 3-row alphabetical, & QWERTY). Data were collected on two movement tasks & a typing task. in the typing task, the user typed a given Stimulus Type using one of the On- Screen Keyboard Arrangements & input devices. The movement tasks served as controls for movement time in the typing task. The QWERTY keyboard arrangement resulted in the'fastest overall input times & was the most preferred arrangement overall. Analysis of the interaction between input Device & Keyboard Arrangement for the unadjusted typing task times (before removing movement time) showed that when movement time was included, input times for the 1-Row Alphabetical were slower than the QWERTY for the Mouse condition; whereas, within Arrow Key condition, input times for the 1-Row Alphabetical & QWERIY were equivalent. This change in relative performance under the 1- Row Alphabetical arrangement for the Mouse condition can be simply attributed to movement time. After statistically removing the effects of movement time from the typing task, the I-Row Alphabetical arrangement was equivalent to the QWERTY for both input device. Conclusions suggest potential inefficiency of movement control when using the Mouse with the 1-Row Alphabetical arrangement Design which limit vertical movement of the indirect input device could provide more efficient movement time results with the 1-Row arrangement, thereby improving overall performance when using the 1-Row On-Screen Keyboard arrangement
Training applications of non-diagnostic intelligent tutoring systems by Leo Gugerty( Book )

1 edition published in 1994 in English and held by 87 WorldCat member libraries worldwide

The keystones of traditional intelligent tutoring systems (ITSs) have been complex procedures for student diagnosis and adaptive instruction based on diagnostic data. While some of these systems have been shown to be effective, they are also very expensive to develop. This paper describes another class of ITSs, non-diagnostic ITSs, which do little or no student diagnosis, and concentrate their intelligence in other areas. Intelligent features of non- diagnostic ITSs include: modeling of expert's reasoning process and cognitive representations (often using graphic displays), comparison of student and expert performance, and replays and summaries of student performance. While traditional, diagnostic ITSs are usually intended to be used in a stand-alone fashion, non-diagnostic tutors are designed to facilitate collaborative learning among students and between teachers and students. The non-diagnostic approach to ITS development offers either a low-cost alternative to traditional ITSs or a way to expand the educational capabilities of traditional systems. This paper presents a framework for comparing the features of non-diagnostic and diagnostic ITSs and data on the costs and educational effectiveness of each type of ITS
Transferability of skills : convergent, postdictive, criterion-related, and construct validation of cross-job retraining time estimates( Book )

1 edition published in 1997 in English and held by 86 WorldCat member libraries worldwide

The purpose of this project was to validate estimates of cross-job transferability of skills among enlisted speciality in the US Air Force (USAF). A sample of retrainees, their supervisors and peers, and a sample of nonretrainees were surveyed on a Transferability of Skills Questionnaire (TSQ), which included that (a) cross-job retraining time estimates (XJRTEs) exhibited significant convergent validity with other AFS-level predictors of retraining ease (job learning difficulty and cross-AFS differences in aptitude requirements), (b) XJRThs exhibited some postdictive validity when evaluated against Airman Retraining Program Survey retraining ease criteria, (c) XJRThs exhibited significant criterion-related validity against time-to-proficiency (but not job performance) criteria, and (d) although retraining climate predicted some aspects of retraining success, it did not consistently moderate the XJRTE-training success relationship as was predicted. Results are discussed in terms of implications for USAF restructuring and retraining policy
Air Force Officer Qualifying Test (AFOQT) estimating the general ability component by James A Earles( Book )

3 editions published in 1991 in English and held by 86 WorldCat member libraries worldwide

Many multiple aptitude test batteries, including the Air Force Officer Qualifying Test (AFOQT), used for assigning or classifying individuals to jobs or for occupational counseling have subtests covering a broad range of content such as science, mathematics, reading, vocabulary, perceptual, mechanical, or technical knowledge. This content reflects a belief that performance in different jobs is best predicted by subtests whose content appears to be closely related to jobs. It has been demonstrated that the subtests of a multiple aptitude test battery all measure, in large part, an examinee's general learning ability, often called psychometric g, in addition to the specific abilities implied by the differing contents of the subtests. This study investigated methods for estimating psychometric g from the Air Force Officer Qualifying Test Form O. The methods used and compared were unrotated principal components, unrotated principal factors and variants of hierarchical factor analysis. Subjects were 2,984 applicants to Air Force commissioning programs. Results indicated that the methods produced estimates of g which were equal except for scale with a range of correlations from .980 to .999. This relationship was all predictable from a theorem presented by S.S. Wilks. (Contains 16 references and 12 tables.) (Author)
Simulation in infrared imaging : using electrical circuit principles to model heat transfer by Ronald J Evans( Book )

2 editions published in 1992 in English and held by 86 WorldCat member libraries worldwide

Simulation of thermal or infrared imaging involves modeling the heat exchange between database features and external sources of heat or radiation (e. g., the sun). One approach to computing differential scene irradiance, as viewed by a sensor, employs electrical circuit theory to model heat transfer between the database objects within the scene. In this report, practical shortcomings of this circuit approach and possible alternatives are introduced and analyzed. Heat storage (capacitance) was one process simulated. Results showed that the computational changes required to implement thermal capacitance are difficult to simulate numerically. Individual feature estimates of capacity were inconsistent with expectations. In addition, the temperature contribution from the capacity or time-varying component did not overcome the effect of the steady-state component, which contained a significant amount of error from assumptions made in the circuit model. Further work is required to identify approaches which provide less extreme object temperatures throughout a diurnal or daily cycle
Influence of operational factors on importance of scene properties for visual low-altitude flight by James A Kleiss( Book )

3 editions published between 1992 and 1993 in English and held by 86 WorldCat member libraries worldwide

Limitations in computer image generation (CIG) and display technology preclude flight simulator visual scenes that contain all of the variety and complexity found in real-world scenes. A fundamental question facing designers of flight simulator visual scenes concerns which specific scene properties are most important to pilots. Previous research has revealed two dimensions of real-world scenes that are important to pilots in the context of visual low-altitude flight: (a) variation in terrain contour mediated by presence/absence of hills and ridges, and (b) variation in the conspicuity of objects in scenes mediated by size, spacing, contrast and familiar appearance (Kleiss, 1990, 1992). Importance of scene properties may reflect basic visual abilities that underlie normal envIronmental interaction or learning associated with this activity. If so, the same simulator scenes would be likely to be effective across a range of training situations. However, low-altitude flight may impose unique demands on pilots such that they become attuned to different scene properties with experience. In this event, effective training would require consideration of these differences in the design of simulator visual scenes. Results reported by Kleiss (1990) tend to support this latter possibility. Two A-1O pilots weighted Dimension 2, object size and spacing, disproportionately more heavily than Dimension 1, variation in terrain contour, in contrast to 13 pilots of A-7 and F-5 aircraft in a sample. Subsequent replications of this experiment with two samples totaling 33 F-4 and F- 16 pilots revealed only one additional pilot who showed a similar disproportionate weighting of the objects dimension compared to terrain contour dimension (Kleiss, 1992)
Flight director information and pilot performance in instrument approaches( Book )

3 editions published in 1992 in English and held by 85 WorldCat member libraries worldwide

This report documents the results of a research effort conducted to identify problem areas encountered during instrument approaches and landings in an F-16A through adverse meteorological conditions. Phase I consisted of identification and simulation of visual conditions likely to produce the conflict/misorientation experienced under 'real-world' conditions; and development of performance measurement standards for F-16A instrument landing system (ILS) training. During Phase II, an experiment was conducted using the F- 16A flight simulator at the Aircrew Training Research Division of the Armstrong Laboratory (AL/HRA) to evaluate F-16A pilot performance with five different ILS instrument configurations: (1) Head-up display (HUD) with flight director, (2) HUD without flight director, (3) Panel instruments only, (4) Panel Instruments and head-down flight director, (5) HUD with flight director, head-down flight director, and panel instruments. Normal aircraft configuration Includes an ILS HUD display with flight director and cockpit panel instruments with raw ILS information. The head-down display, not found on the F-16A aircraft, was developed solely for the research. The display consisted of a head-down flight director that displayed computed steering commands from the HUD on the radar electro-optical display (REO). Twenty F-16A pilots with diverse levels of experience participated in this effort. Each pilot received 5 min of free flight and three practice approaches under benign visual flight rules (VFR) weather conditions. The pilot then flew 15 approaches (three under each condition, counterbalanced) under more difficult visual weather conditions which included scattered clouds, 1 1/2 mile-visibility, a 6,000-ft ceilling, and a 15-knot crosswind
Training methodology for logistic decision making by Fritz H Brecke( Book )

1 edition published in 1995 in English and held by 85 WorldCat member libraries worldwide

Logistics units must ensure that core and augmentee personnel are fully trained in the combat-critical skill of complex decision making. At present, training consists of expensive, manpower-intensive exercises, which afford only sporadic training opportunities. The need exists for more accessible, more affordable, and less manpower-mtensive training. Logistics Command and Control (LC2) technology makes use of desktop computer hardware and software to produce simulation environments. Within these environments, personnel can experience real-world problems. The objective of this research is to design, develop, and test an experimental desktop decision trainer, incorporating simulation environments allowing for the practice of decision-making skills before, during, and after field exercises. This report documents the derivation of the instructional strategy and decision-making modeling approach for training decision-making skills
Air Force conceptual weapon system optimization model : proof of concept study by Robert C Rue( Book )

1 edition published in 1996 in English and held by 85 WorldCat member libraries worldwide

The Air Force must be able to estimate the manpower, personnel, and training (MPI) resources required by the new or modified weapon systems proposed during the Concept Exploration phase of the acquisition process. A proof of concept study was conducted to determine whether data can be obtained to support the system of models proposed for making the estimates and whether the estimates will provide a sound basis for comparing the MPT life-cycle costs of the proposed weapon systems. The study concentrated on one Air Force Specialty while comparing two alternative support concepts for the Advanced Tactical Fighter. The study used the Logistics Composite Model to estimate the manning requirements for the two alternatives. The study explored a methodology for gathering and analyzing data on training requirements and costs. The study modified the Army Manpower Cost System to estimate and compare the life-cycle costs of the two alternatives. Several appendices detail the analyses conducted to support the study. The study found that data exist or can be collected to support the system models, although some work remains to firm up the collection methodology. The study also found that the conceptual framework for the proposed system of models provides a sound basis for comparing proposed weapon systems
Roadmap, an agenda for joint-service classification research by John P Campbell( Book )

1 edition published in 1994 in English and held by 85 WorldCat member libraries worldwide

The Joint-Service Classification Research Roadmap is a research agenda designed to enhance the Services' selection and classification research programs. It is composed of numerous research questions that are organized into seven broad activities. Ordered roughly from highest to lowest priority, they are: Building a Joint-Service policy and forecasting data base, capturing criterion policy, modeling classification decisions, developing new job analysis methodologies, investigating fairness issues, conducting criterion measurement research, and conducting predictor-related research. The first two activities, 'Building a Joint-Service policy and forecasting data base' and 'Capturing criterion policy, ' will facilitate research planning. 'Modeling classification decisions' and 'Developing new job analysis methodologies' are activities wherein long-term research is needed. Classification is important because (a) changes in the ASVAB will result in revised composites, (b) recent innovations make classification research timely, and (c) downsizing makes classification more important. Job analysis research is needed to (a) facilitate innovations in predictor and criterion development and (b) facilitate management of selection and classification for future jobs. Fairness is important from a policy perspective. Criterion and predictor-related research are important, but the Services have researched them extensively. Extended research on experimental measures that have yielded promising results is recommended
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Alternative Names

AL (Armstrong Laboratory (U.S.))

United States. Air Force. Armstrong Laboratory

United States. Air Force Materiel Command. Armstrong Laboratory

United States. Air Force. Systems Command. Armstrong Laboratory

United States. Air Force. Systems Command. Human Systems Division. Armstrong Laboratory

United States. Armstrong Laboratory

United States. Department of the Air Force. Det. 5. Armstrong Laboratory

English (35)