scholarly journals Preliminary Reconstruction of the November 30, 2007, Chicago, IL Rail Collision

2011 ◽  
Author(s):  
Patricia Llana ◽  
David Tyrell
Keyword(s):  
Field Study ◽  
Preliminary Data ◽  
Structural Damage ◽  
Passenger Train ◽  
Occupant Protection ◽  
Causal Mechanisms ◽  
Occupant Injuries ◽  
The Impact

The Volpe Center is supporting the Federal Railroad Administration in performing rail passenger equipment crashworthiness research. The overall objective of this research is to develop strategies for improving structural crashworthiness and occupant protection. A field study of passenger train accidents is being conducted to investigate the causal mechanisms of the injuries incurred by train occupants. The investigation of the November 30, 2007 collision in Chicago, IL has provided preliminary data on the structural damage as well as occupant injuries resulting from the impact. This data will be used in simulations to guide the development of crashworthiness strategies.

Passenger Train Crashworthiness—Secondary Collisions

1996 ◽  
Vol 1531 (1) ◽  
pp. 13-19
Author(s):  
Subhasish Chatterjee ◽  
John F. Carney
Keyword(s):  
Companion Paper ◽  
Impact Response ◽  
Constitutive Relationship ◽  
Peak Acceleration ◽  
Passenger Train ◽  
Hybrid Iii ◽  
Occupant Injuries ◽  
The Impact

Secondary collisions in passenger train crashes are considered and a companion paper dealing with primary collisions is followed up. The effects of crash pulse magnitude and duration, occupant flail distance, and the nature of the impacted surface are considered. The constitutive relationship for a Hybrid III dummy head satisfying the peak acceleration requirements of FMVSS208 is developed and used with the crash victim simulator MADYMO to investigate the impact response of train passengers seated in a unidirectional layout. It is shown that the design of the coach shell and the interior have to be integrated to obtain train designs that will minimize occupant injuries in the event of train collisions.

Administrative Empowerment and its Impact on Creative Thinking: A Field Study in Private Sector Banks in the Kurdistan Region

2015 ◽  
Vol 1 (3) ◽  
pp. 317
Author(s):  
Abdul Wahab Abdul Fatah Alalwsy
Keyword(s):  
Private Sector ◽  
Field Study ◽  
Creative Thinking ◽  
Study Finding ◽  
Kurdistan Region ◽  
Major Study ◽  
The Impact

The aim of this study is to reveals the Impact of managerial empowerment in creative thinking at the private sector banks of Kurdistan Region .the study depends on descriptive and analytical methodize using the practical manner. Study sample consists of employees in (13) banks of the private sector at Kurdistan Region, its amounted (132). a major study finding that there is a significant statistical impact and positive statistical significant correlation between  managerial empowerment and creative thinking ,by its factors, Originality ,Flexibility ,Fluency, Sensitivity to the problems and the ability to analyze .                                                                                                                     

Feasibility and preliminary data for a State-wide South Carolina Lupus Registry

Lupus ◽  
2021 ◽  
pp. 096120332110145
Author(s):  
Brittany L Smalls ◽  
Trevor D Faith ◽  
Hetlena Johnson ◽  
Edith M Williams
Keyword(s):  
South Carolina ◽  
Lupus Erythematosus ◽  
Preliminary Data ◽  
Autoimmune Disorder ◽  
Medical Community ◽  
Small Samples ◽  
Control Board ◽  
Prospective Survey ◽  
And Control ◽  
The Impact

Background Systemic lupus erythematosus (SLE) or lupus is an autoimmune disorder whose cause and reason for disproportionate impact on minorities remains enigmatic. Furthermore, statistics describing lupus incidence and prevalence are outdated and often based on small samples. To begin to address this disparity this report describes preliminary data to be utilized in the development of a state-wide lupus registry in South Carolina. Methods A prospective survey and retrospective data from the South Carolina Budget and Control Board Office of Research & Statistics were used to capture data pertaining to knowledge of lupus, prevalence, and access to lupus care. Results Retrospective ORS data indicated there were 11,690 individuals living with lupus in 2014 with the average direct cost of $69,999.40 in medical care. Prospective surveys (N = 325), in over 16 locations in South Carolina, showed 31% knew someone with lupus, 16% had been diagnosed with lupus, and 50% did not know of a medical facility that treated lupus. Conclusion A lupus registry and repository will provide ongoing access for researchers on the impact of lupus on communities in South Carolina. Lupus is highly prevalent, but disproportionately represented in terms of patient information and participation in clinical trials, so it is also expected that this preliminary work will provide an ongoing process in which the medical community can better engage lupus patients.

scholarly journals Testing the Effect of Hedge Height on Perceived Safety—A Landscape Design Intervention

2021 ◽  
Vol 13 (9) ◽  
pp. 5063
Author(s):  
Katinka H. Evensen ◽  
Helena Nordh ◽  
Ramzi Hassan ◽  
Aslak Fyhri
Keyword(s):  
Field Study ◽  
Field Experiments ◽  
Landscape Design ◽  
Urban Environments ◽  
Space Management ◽  
Perceived Safety ◽  
Urban Green Spaces ◽  
Outdoor Spaces ◽  
Surrounding Areas ◽  
The Impact

Access to safe, green urban environments is important for quality of life in cities. The objective of this study is to explore the impact of a safety-enhancing landscape design measure on visitors’ experiences in an urban park. Additionally, this paper combines the use of field and virtual reality (VR) experiments, contributing methodological insights into how to evaluate safety measures in green space management and research on perceived safety. In a field experiment (n = 266), we explored whether the height of a hedge along a pathway influenced perceived safety among users. The field study showed that cutting down the hedge improved the perceived prospect of the immediate surrounding areas for female users, which again made them feel safer in the park. We developed a VR experiment for an evening scenario in the same environment (n = 19) to supplement the field study and test the effect of the intervention further. The VR experiment also found a gender effect on perceived safety, with females reporting lower perceived safety, but no effect was shown for the height of the hedge. The results in this study show that environmental attributes such as perceived prospect and concealment should be considered in the design and management of urban green spaces. Additionally, this research demonstrates an approach to conducting field experiments to test the effects of actual design interventions and then further developing these experiments using VR technology. Further research on perceived safety in outdoor spaces is needed to make use of this combined method’s potential.

Experimental Investigation on Improving Electromechanical Impedance Based Damage Detection by Temperature Compensation

2013 ◽  
Vol 569-570 ◽  
pp. 1132-1139 ◽  
Author(s):  
Thomas Siebel ◽  
Mihail Lilov
Keyword(s):  
Damage Detection ◽  
Structural Damage ◽  
Temperature Compensation ◽  
Impact Damage ◽  
Correlation Coefficients ◽  
Electromechanical Impedance ◽  
Reinforced Plastic ◽  
Influence Of Temperature On ◽  
Compensation Approach ◽  
The Impact

The sensitivity of the electromechanical impedance to structural damage under varying temperature is investigated in this paper. An approach based on maximizing cross-correlation coefficients is used to compensate temperature effects. The experiments are carried out on an air plane conform carbon fiber reinforced plastic (CFRP) panel (500mm x 500mm x 5mm) instrumented with 26 piezoelectric transducers of two different sizes. In a first step, the panel is stepwise subjected to temperatures between-50 °C and 100 °C. The influence of varying temperatures on the measured impedances and the capability of the temperature compensation approach are analyzed. Next, the sensitivity to a 200 J impact damage is analyzed and it is set in relation to the influence of a temperature change. It becomes apparent the impact of the transducer size and location on the quality of the damage detection. The results further indicate a significant influence of temperature on the measured spectra. However, applying the temperature compensation algorithm can reduce the temperature effect at the same time increasing the transducer sensitivity within its measuring area. The paper concludes with a discussion about the trade-off between the sensing area, where damage should be detected, and the temperature range, in which damage within this area can reliably be detected.

Sociocultural Influences on an Important Example of Iranian Urban Form

2008 ◽  
Vol 33 (1) ◽  
pp. 72-85
Author(s):  
Fereshteh Habib ◽  
Ibrahim Numan ◽  
Hifsiye Pulhan
Keyword(s):  
Field Study ◽  
Urban Form ◽  
Human Perception ◽  
Cultural Factors ◽  
Dimensional Approach ◽  
Sociocultural Influences ◽  
Deductive Method ◽  
The Subject ◽  
The Impact ◽  
The City

In casting a new look at city; this study interprets the urban form in respect of the role played by human perception of space. The main aim of this research at a macro level is to attain a strong theorical basis through a multi-dimensional approach to the city. The method of analyzing and carrying out a critique of it at an applied level will clarify the impact, which cultural factors have in the formation of urban form. This preliminary recognition and idealism is based on a hermeneutic and deductive method that is particular to the intellectual sciences In the process of devising theories, studying the urban planning texts related to the subject of study and the conclusion from the field study which is carried out in the Isfahan Naghshe Jahan square in the Safavy period played a key role in the research in addition to the goals and questions.

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