Test and Evaluation Criteria for Side‐Impact Roadside Appurtenance Collisions

1994 ◽  
Vol 120 (4) ◽  
pp. 633-651 ◽  
Author(s):  
M. H. Ray ◽  
J. F. Carney
Keyword(s):  
Evaluation Criteria ◽  
Side Impact ◽  
Test And Evaluation

Side-Impact Crash Test and Evaluation Criteria for Roadside Safety Hardware

1998 ◽  
Vol 1647 (1) ◽  
pp. 97-103 ◽  
Author(s):  
Malcolm H. Ray ◽  
Martin W. Hargrave ◽  
John F. Carney ◽  
K. Hiranmayee
Keyword(s):  
Impact Test ◽  
Motor Vehicle ◽  
Evaluation Criteria ◽  
The United States ◽  
Side Impact ◽  
Roadside Safety ◽  
Test And Evaluation ◽  
Evaluation Procedures ◽  
Roadside Hardware ◽  
Crash Tests

During the past decade, reducing the severity of side-impact collisions has been an emerging area of research by a variety of organizations and research communities. The motor vehicle manufacturing and regulatory communities in the United States, Europe, and many other countries have developed dynamic side-impact test and evaluation criteria to reduce the severity of vehicle-to-vehicle side-impact collisions. Similarly, the international research community has developed test procedures for performing impacts into poles, one of the most severe types of side-impact collisions. Preliminary side-impact test and evaluation procedures have been conducted for roadside safety hardware, like guardrails, guardrail terminals, luminaire supports, utility poles, and signs. Recommendations for performing roadside hardware side-impact crash tests are summarized; the results of several side-impact roadside hardware crash tests are described; the proposed test and evaluation procedures are compared with other major side-impact test and evaluation procedures; and areas requiring further research are discussed.

MPEG-7 TEXTURE DESCRIPTORS

2001 ◽  
Vol 01 (03) ◽  
pp. 547-563 ◽  
Author(s):  
PENG WU ◽  
YANGLIM CHOI ◽  
YONG MAN RO ◽  
CHEE SUN WON
Keyword(s):  
Similarity Search ◽  
Texture Classification ◽  
Evaluation Criteria ◽  
Image Search ◽  
Texture Descriptor ◽  
Comprehensive Overview ◽  
Test And Evaluation ◽  
Evaluation Phase ◽  
Competitive Test ◽  
Edge Histogram

A texture description is useful in many applications including similarity based image search and browsing. We present here three texture descriptors that are being considered for the final committee draft of the ISO/MPEG-7 standard. A comprehensive overview of the syntax and semantics of these texture descriptors is provided. The Homogeneous Texture Descriptor (HTD) and the Edge Histogram Descriptor (EHD) are useful in similarity search. The HTD characterizes homogeneous texture regions and is also useful in texture classification and recognition. The EHD is applicable when the underlying texture is not homogeneous and can also be used in sketch based retrieval. In addition, a compact descriptor that facilitates browsing applications is also defined. These descriptors are selected after a highly competitive test and evaluation phase within the MPEG group and we briefly summarize the evaluation criteria, the datasets used and the experimental results.

Test and Evaluation for Weapon Systems

2019 ◽  
pp. 98-110 ◽  
Author(s):  
Levent Eriskin ◽  
Murat M. Gunal
Keyword(s):  
Modeling And Simulation ◽  
Evaluation Criteria ◽  
Decision Makers ◽  
Value For Money ◽  
Weapon Systems ◽  
Defense Systems ◽  
Test And Evaluation ◽  
Systems Requirements

Defense systems are complex and expensive and decision makers acquiring these systems aspire better value for money. As part of a procurement decision, test and evaluation (T&E) is conducted to assess if the system is meeting desired requirements. This chapter reviews the concepts in T&E for weapon systems in the navy and presents the process for its implementation. The authors point out the role of modeling and simulation and how to use them to support T&E. The review reveals that developmental and operational T&E can examine weapon systems requirements before their deployment, T&E process can effectively be implemented in six steps, and mission/capacity requirements must be decomposed into predefined evaluation criteria.

Side Impact Crash Modelling: Development of a Numerical Identification Tool Using Optimization Methods

1999 ◽  
Author(s):  
Jean-Yves Jaskulski ◽  
Mounib Mekhilef
Keyword(s):  
Objective Function ◽  
Automotive Industry ◽  
Evaluation Criteria ◽  
Optimization Methods ◽  
Side Impact ◽  
Model Parameters ◽  
Side Impacts ◽  
Crash Model ◽  
Crash Modelling ◽  
Identification Tool

Abstract Currently, in automotive industry, identification of vehicle crash model parameters on test measurements is a key point. This paper outlines an approach based on optimization methods for this problem in the context of side impacts. It presents the problematic of crash model parameter identification. The engineer’s evaluation criteria of correlation are translated into an optimization objective function. Several optimization strategies are applied to identification of side impact crash model parameters. The comportment on our problem of these strategies are characterized, and numerical results show that the method of tabou search provides a good solution.

scholarly journals Implementation and validation of an in-house combined fluorescein/media-fill test to qualify radiopharmacy operators

2021 ◽  
Vol 6 (1) ◽  
Author(s):  
Cyril Fersing ◽  
Emmanuel Deshayes ◽  
Sarah Langlet ◽  
Laurence Calas ◽  
Vincent Lisowski ◽  
...  
Keyword(s):  
Quality Management System ◽  
Growth Promotion ◽  
Evaluation Criteria ◽  
Average Score ◽  
Test And Evaluation ◽  
Promising Tool ◽  
Post Evaluation ◽  
Evaluation Protocol ◽  
Growth Properties ◽  
General Chapter

Abstract Background The purpose of this work was to design, validate and implement a media-fill test combined with fluorescein (MFT-F) for the specific qualification and training of radiopharmacy operators, in accordance with United States Pharmacopeia General Chapter 797 and European Good Manufacturing Practices. MFT-F was embedded in the quality management system of our radiopharmacy unit. Its validation involved fluorescein concentration choice, media growth promotion test and evaluation protocol controls (with or without intentional aseptic mistakes). Each operator was evaluated following a three-part evaluation form. Evaluation criteria related to garbing and hygiene, fluorescent contamination and bacteriological contamination (pre- and post-evaluation environment controls and MFT-F samples). Combined MFT-F allowed the assessment of aseptic compounding skills and non-contamination of the working area through a single evaluation. It was also designed to fit the constraints of radiopharmacy common practice related to radiation protection equipment and to the small volumes handled. Results A 0.01% fluorescein concentration was chosen to prepare MFT-F. Addition of fluorescein in the culture medium did not jeopardize its growth properties according to growth promotion test. Eleven operators were evaluated and carried out 3 MFT-F over 3 successive days. Pre- and post-evaluation bacteriological controls of every session showed no CFU of microbiological contaminant above 5. All operators validated the garbing and hygiene evaluation, with an average score of 92.7%. All operators validated the fluorescent contamination evaluation, with an average score of 29.4 out of 30. None of the MFT-F samples showed any visible bacterial growth after incubation. Conclusions Combined MFT-F, as a part of a comprehensive sterile compounding training program, appeared as a convenient and promising tool to increase both the sterile compounding safety and awareness of radioactive contamination in radiopharmacy.

Test and Evaluation for Weapon Systems

2021 ◽  
pp. 287-299
Author(s):  
Levent Eriskin ◽  
Murat M. Gunal
Keyword(s):  
Modeling And Simulation ◽  
Evaluation Criteria ◽  
Decision Makers ◽  
Value For Money ◽  
Weapon Systems ◽  
Defense Systems ◽  
Test And Evaluation ◽  
Systems Requirements

Defense systems are complex and expensive and decision makers acquiring these systems aspire better value for money. As part of a procurement decision, test and evaluation (T&E) is conducted to assess if the system is meeting desired requirements. This chapter reviews the concepts in T&E for weapon systems in the navy and presents the process for its implementation. The authors point out the role of modeling and simulation and how to use them to support T&E. The review reveals that developmental and operational T&E can examine weapon systems requirements before their deployment, T&E process can effectively be implemented in six steps, and mission/capacity requirements must be decomposed into predefined evaluation criteria.

Evaluating Human Risk in Side Impact Collisions with Roadside Objects

2000 ◽  
Vol 1720 (1) ◽  
pp. 67-71 ◽  
Author(s):  
Malcolm H. Ray ◽  
Kamarajuggada Hiranmayee
Keyword(s):  
Velocity Profile ◽  
Evaluation Criteria ◽  
Side Impact ◽  
Crash Test ◽  
Test Evaluation ◽  
Simple Method ◽  
Human Risk ◽  
Risk Of Injury ◽  
Conservative Values ◽  
Crash Tests

Full-scale crash tests are traditionally used to assess the danger posed by roadside object. Crash test evaluation criteria should relate the observable response of the vehicle and the struck object to the likely risk of injury to vehicle occupants in similar real-world collisions. Side impact collisions are particularly serious impacts, but no evaluation guidelines exist. A simple method is presented for determining human risk in a side impact collision with a roadside object from the velocity profile of the impacted face of the struck object. This method not only eliminates the use of anthropometric test devices in crash tests, but also gives conservative values to account for the variable occupant position at the time of impact.

The Changing Nature of Test and Evaluation: Four Perspectives

2000 ◽  
Vol 44 (37) ◽  
pp. 553-553
Author(s):  
William F. Moroney
Keyword(s):  
Task Performance ◽  
Situation Awareness ◽  
Evaluation Criteria ◽  
Design Guidelines ◽  
Test And Evaluation ◽  
Military Systems ◽  
System Requirements ◽  
Maintenance Personnel ◽  
Requirements Documents ◽  
Testing And Evaluation

Historically, research and development efforts, and testing and evaluation (T&E), activities, were separate and distinct from each other. At that time, the goals of T&E were predominantly two: 1. To determine whether or not the system met requirements 2. To determine whether or not the system “worked”? Testing focused on factors that influence task performance. Evaluation criteria were often specified in general design guidelines and specifications, or in system requirements documents. And, the majority of T&E efforts were expended in conjunction with military systems. Today, development, testing, and evaluation are routinely performed as part of the concurrent engineering process. Research, if conducted at all, is likely to be focused on situation-specific issues. The previously stated T&E goals are still valid, but T&E practitioners may also be expected to provide design recommendations. Testing of task performance is still a high priority, but testing may also be performed to assess usability, workload, situation awareness, safety, and acceptance by operational and maintenance personnel. The beginning of a new millennium is an appropriate time to examine this redefined problem space. The presentations by our four panelists will illuminate some of these changes and describe how we may react to them.

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