Cost-Effective Live-Fire Test and Evaluation Strategies: The Missions and Means Framework

2006 ◽  
Author(s):  
Martha K. Nelson ◽  
Dennis C. Bely
Keyword(s):  
Fire Test ◽  
Cost Effective ◽  
Test And Evaluation ◽  
Evaluation Strategies

Abstract W P183: Testing the Utility of an Emergency Room-Based Stroke Evaluation Protocol

Stroke ◽  
2014 ◽  
Vol 45 (suppl_1) ◽  
Author(s):  
Gyeong-Moon Kim ◽  
Johanna Helenius ◽  
E Murat Arsava ◽  
Hakan Ay
Keyword(s):  
Emergency Department ◽  
Clinical Evaluation ◽  
Diagnostic Testing ◽  
Cost Effective ◽  
Vascular Imaging ◽  
Cardiac Monitoring ◽  
Evaluation Protocol ◽  
Evaluation Strategies ◽  
Fundamental Goal ◽  
Major Stroke

Background and purpose: A fundamental goal in diagnostic stroke evaluation is to identify the underlying etiology. We sought to determine the yield of an emergency department-based diagnostic evaluation protocol for identifying the etiology of stroke. Methods: We determined etiologic stroke subtypes using the automated Causative Classification System (CCS, available at https://ccs.mgh.harvard.edu) in 2422 consecutive patients with ischemic stroke at admission and discharge. Admission assessment was based on information from clinical evaluation, ECG, brain imaging (CT or MRI), and vascular imaging (CTA/MRA). Discharge CCS was performed blinded to the admission CCS subtype using information from additional tests such as echocardiography, cardiac monitoring, and special blood and CSF tests. Results: Table 1 shows the distribution of CCS subtypes. Overall, admission and discharge CCS subtypes were different in 29% of the patients. The size of “undetermined” category decreased from 37% at admission to 12% at discharge. The shift from “undetermined” to a known etiology was primarily due to detection of cardiac sources with low or uncertain risk of stroke (94%). The yield of investigations performed after admission in identifying a major known subtype was only 4.1% (p=0.008). Conclusions: A careful clinical evaluation and first-line diagnostic testing including brain and vascular imaging in the emergency department identify > 90% of those with a major stroke etiology. The low yield of additional testing suggests a need for developing cost-effective evaluation strategies in suspected patients.

Mobile Telecom System Architectures—IMS an Evolution Path Towards IP Convergence

2009 ◽  
pp. 197-222
Author(s):  
Panagiotis Kasimatis ◽  
Dimitra Varla
Keyword(s):  
Mobile Networks ◽  
Heterogeneous Network ◽  
Cost Effective ◽  
Ip Multimedia Subsystem ◽  
System Architectures ◽  
Evolution Path ◽  
Evaluation Strategies ◽  
Ip Network ◽  
Telecom Networks ◽  
Mobile Telecom

This chapter deals with the description of the various applied Mobile System Architectures, showing the evolution path towards the IP Convergence issue, with the introduction of the IP Multimedia Subsystem. It contains the most important networks entities of the different Mobile Networks Systems and their integration to the IMS. Being the core of the Fixed-Mobile Converge, IMS’ operation, functionality and interoperability with the other Telecom platforms are analyzed. Furthermore, aiming in a cost effective high QoS solution, typical performance evaluation strategies of the network manufacturers are described. Its scope is to give an overview of the existing architectures, their network components, their characteristics and their differences, while also show how nearly all traditional Telecom networks can be converged, with the use of the IMS, to an all-IP network, where various applications can be accessed by heterogeneous network platforms.

Live Fire Test and Evaluation Ergonomics Projects

2000 ◽  
Vol 44 (37) ◽  
pp. 670-673
Author(s):  
Richard J. Carter ◽  
James F. O'Bryon
Keyword(s):  
Animal Species ◽  
Fire Test ◽  
Loss Of Consciousness ◽  
Test And Evaluation ◽  
System A ◽  
Physicochemical Interactions ◽  
Realistic Assessment ◽  
Collision Avoidance System ◽  
Toxic Gas ◽  
Casualty Assessment

The live fire test and evaluation (LFT&E) program is oriented towards providing a realistic assessment of the survivability and lethality of a military system. A component of every live fire test is an assessment of crew survivability. Three major ergonomics related projects, operational requirements-based casualty assessment (ORCA), combined toxic gas modeling, and gravitational loss of consciousness (G-LOC), are described. ORCA is a comprehensive standardized methodology for assessing personnel casualties following weapon induced injury. The combined toxic gas model is an incapacitation model that incorporates complex physicochemical interactions between gases and tissues and accommodates experimental data across animal species and humans. Two G-LOC related efforts are discussed. The first endeavor is expanding upon the automatic ground collision avoidance system (GCAS). The second project is being conducted via five tasks.

Live Fire Test and Evaluation for Ships

1994 ◽  
Vol 106 (3) ◽  
pp. 228-245 ◽  
Author(s):  
JOEL B. BLOOM ◽  
RONALD M. REESE ◽  
THOMAS M. HOPKINS
Keyword(s):  
Fire Test ◽  
Test And Evaluation

MODERATOR:SESSION 3A.Paper #17: [228]. LIVE FIRE TEST AND EVALUATION FOR SHIPS

1994 ◽  
Vol 106 (4) ◽  
pp. 139-148
Author(s):  
Capt. Alain Bovis French Navy ◽  
Larrie Ferreero ◽  
Joel B. Bloom ◽  
Ronald M. Reese ◽  
Thomas M. Hopkins ◽  
...  
Keyword(s):  
Fire Test ◽  
Test And Evaluation

scholarly journals Forensic Engineering Analysis Of Firearms Trigger Incidents

2008 ◽  
Vol 25 (2) ◽  
Author(s):  
John R. Nixon
Keyword(s):  
Analytical Techniques ◽  
Cost Effective ◽  
Peak Force ◽  
Operating Characteristics ◽  
Test Procedures ◽  
Actual Case ◽  
Trigger Mechanism ◽  
Test And Evaluation ◽  
Minimal Data ◽  
Evaluation Techniques

Firearms Trigger Operating Characteristics Have Long Been Evaluated Using Inappropriate Rudimentary Equipment That Yields Incomplete And Inconsistent Data. These Commonly Used, And Widely Accepted, Peak Force Techniques Yield Minimal Data That Are Inappropriate For Their Intended Purpose And, Consequently, Often Result In Erroneous Conclusions Being Drawn. The Majority Of Those Performing The Tests And Presenting Their Analyses In Courts Are Not Engineers, And Typically Refuse To Acknowledge The Shortcomings Of Their Test Procedures And Analytical Techniques, Even After Detailed Explanation Has Been Provided. Historically, Scientifically Valid Trigger Mechanism Evaluation Techniques Were Slow And Labor Intensive To Perform. The Advent Of Micro-Electronics Has Resulted In The Availability Of Cost Effective, Portable, Scientifically Valid, Accurate, Fast, And Reliable, Trigger Mechanism Evaluation Equipment. This Equipment Minimizes The Need For Firearm Disassembly And, Consequently, Greatly Diminishes Evidence Spoliation Concerns. This Paper Contrasts The Results Obtained From The Use Of Inappropriate And Outdated Peak Force Techniques When Compared To Modern Computerized Electromechanical Techniques. Actual Case Studies Are Used To Illustrate How Inappropriately Qualified Crime Lab Personnel Using The Established, Though Scientifically Invalid, Peak Force Evaluation Techniques May Lead To Injustice In Both Criminal And Civil Litigation. It Is Recommended That The Scientifically Invalid Peak Force Test Procedures Be Abandoned, And That Appropriately Qualified And Trained Professionals Adopt The Scientifically Valid Electro-Mechanical Trigger Test And Evaluation Techniques Described In This Paper.

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