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An Examination Of Statistical Impact Acceleration Injury Prediction Models Based On Gx Accelerator Data From Subhuman Primates
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Book Synopsis An Examination of Statistical Impact Acceleration Injury Prediction Models Based on -Gx Accelerator Data from Subhuman Primates by : Dennis E. Smith
Download or read book An Examination of Statistical Impact Acceleration Injury Prediction Models Based on -Gx Accelerator Data from Subhuman Primates written by Dennis E. Smith and published by . This book was released on 1978 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report considers the application of an impact acceleration injury prediction model to observed data from a set of twenty-eight -G sub x accelerator runs involving subhuman primates (Rhesus monkeys) with securely restrained torso and unrestrained head. The data was collected by the Naval Aerospace Medical Research Laboratory (NAMRL) Detachment as part of its research effort on acceleration impact injury prevention. Using a common data base, two different models were constructed, one based on sled profile variables and the other based on head dynamic response variables. Although the latter model provided a reasonable fit given the small size of the data set, the other model (based on sled profile variables) resulted in a much better fit. Possible explanations for this seemingly anomalous result are listed and additional accelerator runs are suggested. (Author).
Book Synopsis An Examination of Statistical Impact Acceleration Injury Prediction Models Based on -Gx Accelerator Data from Subhuman Primates. Technical Report by : Dennis E. Smith
Download or read book An Examination of Statistical Impact Acceleration Injury Prediction Models Based on -Gx Accelerator Data from Subhuman Primates. Technical Report written by Dennis E. Smith and published by . This book was released on 1978 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Research on the Development of a Statistical Impact Acceleration Injury Prediction Model from -G(x) Accelerator Runs by : Dennis E. Smith
Download or read book Research on the Development of a Statistical Impact Acceleration Injury Prediction Model from -G(x) Accelerator Runs written by Dennis E. Smith and published by . This book was released on 1982 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Statistical impact acceleration injury prediction models are developed for the head/neck segment from data obtained during 68 -G sub x accelerator runs. These runs involved subhuman primates (Rhesus monkeys) with securely restrained torso and unrestrained head. The data was collected by the Naval Biodynamics Laboratory (NBDL) as part of its research effort on acceleration impact injury prevention. Three classes of prediction models are constructed, one based on sled profile variables, another based on head dynamic response variables only, and the third comprised of the combined set of independent variables. The model predictions are compared with the observed results to evaluate performance. (Author).
Book Synopsis Statistical Impact Acceleration Injury Prediction Models Based on -Gx Accelerator Data and Initial Head Conditions by : Kevin C. Burns
Download or read book Statistical Impact Acceleration Injury Prediction Models Based on -Gx Accelerator Data and Initial Head Conditions written by Kevin C. Burns and published by . This book was released on 1983 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: Statistical impact acceleration injury prediction models are developed using data from 23 high-level -G sub X acceleration runs. These runs involve Rhesus monkeys with securely restrained torsos and unrestrained heads. The models are based on peak sled acceleration and initial head conditions. The model predictions are compared with those given in an earlier report based on different data and an estimate of Fisher's information matrix is used to evaluate the relative worth of the two data bases. (Author).
Book Synopsis An Examination of Statistical Impact Acceleration Injury Prediction Models Based on Torque and Force Variables by : Dennis E. Smith
Download or read book An Examination of Statistical Impact Acceleration Injury Prediction Models Based on Torque and Force Variables written by Dennis E. Smith and published by . This book was released on 1979 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt: This technical report describes the construction of impact acceleration injury prediction models from a set of twenty-eight -G sub x accelerator runs involving Rhesus monkeys with securely restrained torso and unrestrained head. Peak torque and force variables measured during these runs were used to predict injury likelihood. The relative contribution of these variables was examined with respect to the original and a modified version of the data set. Two possible prediction models were used to construct two critical envelopes, i.e., those values of the variables for which the predicted probability of injury (or fatality) is less than or equal to some specified probability. The preferred model was identified and discussed. (Author).
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1979 with total page 990 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Book Synopsis Statistical Impact Acceleration Injury Prediction Models Based on -G Sub X Accelerator Data by : Carl A. Mauro
Download or read book Statistical Impact Acceleration Injury Prediction Models Based on -G Sub X Accelerator Data written by Carl A. Mauro and published by . This book was released on 1986 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since 1974, the Naval Biodynamics Laboratory (NBDL) has collected, as part of its research effort on acceleration impact injury prevention, an extensive data base from -G sub x accelerator runs on Rhesus subjects. Over this time period, Desmatics, Inc. has been actively involved in the development of statistically based models to predict injury in Rhesus subjects resulting from indirect head/neck impact acceleration in the -X direction. The objectives of the present technical report are: (1) to summarize, update, and consolidate the Desmatics modeling efforts for fatal injury; (2) to investigate extending the injury prediction models to include nonfatal injury criteria; and (3) to evaluate the accuracy and validity of the prediction models obtained in the modeling efforts.
Download or read book Aerospace Medicine and Biology written by and published by . This book was released on 1979 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: A selection of annotated references to unclassified reports and journal articles that were introduced into NASA scientific and technical information system and announced in Scientific and Technical Aerospace Reports (STAR), International Aerospace Abstracts (IAA).
Book Synopsis Research on Construction of a Statistical Model for Predicting Impact Acceleration Injury by : Dennis E. Smith
Download or read book Research on Construction of a Statistical Model for Predicting Impact Acceleration Injury written by Dennis E. Smith and published by . This book was released on 1976 with total page 31 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report describes a statistical approach to development of a human impact acceleration injury prediction model based on experimental data obtained from human analogs. Also discussed in the use of preinjury criteria to provide more accurate estimates of model parameters. (Author).
Book Synopsis Government Reports Annual Index by :
Download or read book Government Reports Annual Index written by and published by . This book was released on 1978 with total page 1034 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government Reports Announcements & Index by :
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1978 with total page 1716 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A General Statistical Approach for Using Auxiliary Information in the Development of an Impact Acceleration Injury Prediction Model by : John J. Peterson
Download or read book A General Statistical Approach for Using Auxiliary Information in the Development of an Impact Acceleration Injury Prediction Model written by John J. Peterson and published by . This book was released on 1980 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report discusses general procedures for simultaneously incorporating various sources of auxiliary information into an impact acceleration injury prediction model. The sources of auxiliary information considered are supplemental continuous empirical data and a priori knowledge in the form of model parameter estimates and constraints. (Author).
Book Synopsis Mathematical and Statistical Considerations Underlying Development of an Impact Injury Model by : Dennis E. Smith
Download or read book Mathematical and Statistical Considerations Underlying Development of an Impact Injury Model written by Dennis E. Smith and published by . This book was released on 1973 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: The report summarizes a research investigation of mathematical methods and statistical techniques associated with construction and validation of a mathematical model capable of accurately predicting human injury from dynamic forces produced by impact acceleration. (Author).
Book Synopsis Research on Human Impact Acceleration Dynamic Response and Injury: Some Statistical Aspects of Modeling by : Dennis E. Smith
Download or read book Research on Human Impact Acceleration Dynamic Response and Injury: Some Statistical Aspects of Modeling written by Dennis E. Smith and published by . This book was released on 1974 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt: The report describes an ongoing research investigation of statistical aspects underlying development of mathematical models of human impact acceleration dynamic response and injury. Particular attention is paid to the requirements and constraints imposed on human accelerator runs.
Book Synopsis Computational Aspects of Incorporating Auxiliary Information Into an Impact Acceleration Injury Prediction Model by : John J. Peterson
Download or read book Computational Aspects of Incorporating Auxiliary Information Into an Impact Acceleration Injury Prediction Model written by John J. Peterson and published by . This book was released on 1981 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt: Auxiliary information may sometimes be used in development of a mathematical model in order to improve the estimated values of unknown parameters. This report discusses computational procedures which allow the application of commonly used nonlinear estimation programs to incorporate various sources of auxiliary information into an impact acceleration injury prediction model. (Author).
Book Synopsis Analysis of the Initial Human Accelerator Runs to Provide Information for Use in Injury Prediction Model Development. I. Discussion by : Dennis E. Smith
Download or read book Analysis of the Initial Human Accelerator Runs to Provide Information for Use in Injury Prediction Model Development. I. Discussion written by Dennis E. Smith and published by . This book was released on 1974 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: The proposed analysis described in this technical note consists of five steps. They are: (1) Postulate an initial set of variables describing head dynamic response. (2) Eliminate variables of marginal potential using the ratio of between-cell variance to within-cell variance as a criterion. (3) Perform a principal components analysis on the retained subset of variables in order to identify a set of transformed variables accounting for large between-cell variation. (4) Conduct an analysis of variance on each transformed variable. (5) Examine residuals to yield additional information.
Book Synopsis Analysis of the Initial Human Accelerator Runs to Provide Information for Use in Injury Prediction Model Development. II. Calculation Procedures by : Dennis E. Smith
Download or read book Analysis of the Initial Human Accelerator Runs to Provide Information for Use in Injury Prediction Model Development. II. Calculation Procedures written by Dennis E. Smith and published by . This book was released on 1974 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: The technical note summarizes the calculations required in the following steps: (1) Postulate an initial set of variables describing head dynamic response. (2) Eliminate variables of marginal potential using the ratio of between-cell variance to within-cell variance as a criterion. (3) Perform a principal components analysis on the retained subset of variables in order to identify a set of transformed variables accounting for large between-cell variation. (4) Conduct an analysis of variance on each transformed variable. (5) Examine residuals to yield additional information.
