scholarly journals Analysis of Wind and Drifter Movement Parameters in Terms of Navigation Safety: The Example of Szczecin Lagoon

2021 ◽  
Vol XXIV (Issue 3) ◽  
pp. 541-559
Author(s):  
Lech Kasyk ◽  
Krzysztof Pleskacz ◽  
Tomasz Kapuscinski
Keyword(s):  
Szczecin Lagoon ◽  
Movement Parameters ◽  
Navigation Safety

Analysis of movement of persons with disabilities during evacuation by lift

2020 ◽  
Vol 15 (1) ◽  
pp. 209-220
Author(s):  
Martin Szénay ◽  
Martin Lopušniak
Keyword(s):  
Computational Models ◽  
Persons With Disabilities ◽  
Entire Process ◽  
Injured Person ◽  
Impaired People ◽  
Movement Parameters ◽  
The Times ◽  
Mobility Impaired

Abstract Lifts are indispensable for the evacuation of mobility-impaired people from buildings in case of emergency. It is necessary to quantify the movement parameters of these people and describe the entire process using a suitable algorithm. The aim of the research was to quantify the times and speeds of movement for a person using a wheelchair and for an injured person. An experiment in situ was used. During the experiment, arrivals at the lift, cabin entries, and exits were monitored. The results include the times and speeds of a mobility-impaired person's movement. The experiments showed that a person using a wheelchair was slower than an injured person. The results can be used to expand computational models to account for the possibility of using lifts for evacuation.

INTRODUCTION TO RISK AND SAFETY OF AIR NAVIGATION

2020 ◽  
Author(s):  
Fedja Netjasov
Keyword(s):  
Doctoral Students ◽  
Traffic Engineering ◽  
International Standards ◽  
Air Transport ◽  
Civil Aviation ◽  
Undergraduate Studies ◽  
Recommended Practices ◽  
The University ◽  
Navigation Safety

"Introduction to Risk and Safety of Air Navigation" is an authorized script compiled on the basis of the curriculum of the course "Introduction to Risk and Safety of Air Navigation" which is taught in undergraduate studies at the University of Belgrade - Faculty of Transport and Traffic Engineering. The scripts are primarily intended for students of undergraduate (bachelor) studies at the Department of Air Transport and Traffic at the University of Belgrade - Faculty of Transport and Traffic Engineering. Scripts can be useful to both master's and doctoral students at the University of Belgrade - Faculty of Transport and Traffic Engineering, especially those who have not completed undergraduate studies at the Department of Air Transport and Traffic. They can also be useful to air transport and aeronautical engineers in order to expand and update knowledge in the field of air navigation safety. The material presented in these scripts relates mainly to civil aviation and is largely based on international standards, recommended practices, regulations and documents which deal with issues related to air navigation safety. As these standards, regulations and documents are subject to frequent changes and alterations, users of these scripts are advised to also use the original (updated) documents, which are listed in the references, in order to take into account any changes that have occurred after the release of the scripts.

scholarly journals Navigation safety domain and collision risk index for decision support of collision avoidance of USVs

2021 ◽  
Vol 13 ◽  
pp. 340-350
Author(s):  
Jian Zhou ◽  
Feng Ding ◽  
Jiaxuan Yang ◽  
Zhengqiang Pei ◽  
Chenxu Wang ◽  
...  
Keyword(s):  
Decision Support ◽  
Collision Avoidance ◽  
Risk Index ◽  
Collision Risk ◽  
Navigation Safety

Evaluation of electroacupuncture for symptom modification in a rodent model of spontaneous osteoarthritis

2021 ◽  
pp. 096452842110207
Author(s):  
Alexa P Spittler ◽  
Maryam F Afzali ◽  
Richard B Martinez ◽  
Lauren A Culver ◽  
Sarah E Leavell ◽  
...  
Keyword(s):  
Rodent Model ◽  
Knee Joints ◽  
Control Group ◽  
Disease Modification ◽  
Inflammatory Biomarker ◽  
Knee Oa ◽  
Significant Difference ◽  
Gene Transcripts ◽  
Restricted Mobility ◽  
Movement Parameters

Objective: Faced with the frustration of chronic discomfort and restricted mobility due to osteoarthritis (OA), many individuals have turned to acupuncture for relief. However, the efficacy of acupuncture for OA is uncertain, as much of the evidence is inconclusive. The purpose of this study was to evaluate electroacupuncture (EA) in a rodent model of OA such that conclusions regarding its effectiveness for symptom or disease modification could be drawn. Methods: Ten 12-month-old male Hartley guinea pigs—which characteristically have moderate to advanced OA at this age—were randomly assigned to receive EA for knee OA (n = 5) or anesthesia only (control group, n = 5). Treatments were performed three times weekly for 3 weeks, followed by euthanasia 2 weeks later. Gait analysis and enclosure monitoring were performed weekly to evaluate changes in movement. Serum was collected for inflammatory biomarker testing. Knee joints were collected for histology and gene expression. Results: Animals receiving EA had significantly greater changes in movement parameters compared to those receiving anesthesia only. There was a tendency toward decreased serum protein concentrations of complement component 3 (C3) in the EA group compared to the control group. Structural and antioxidant gene transcripts in articular cartilage were increased by EA. There was no significant difference in total joint histology scores between groups. Conclusion: This study provides evidence that EA has a positive effect on symptom, but not disease, modification in a rodent model of OA. Further investigations into mechanistic pathways that may explain the efficacy of EA in this animal model are needed.

Navigation Safety Analysis in Taiwanese Ports

2006 ◽  
Vol 59 (2) ◽  
pp. 201-211 ◽  
Author(s):  
Chung-Ping Liu ◽  
Gin-Shuh Liang ◽  
Yuhling Su ◽  
Ching-Wu Chu
Keyword(s):  
Grey Relational Analysis ◽  
Safety Analysis ◽  
Port Authority ◽  
Relational Analysis ◽  
Marine Accidents ◽  
Grey Relational ◽  
Navigation Safety

Many researchers have studied vessel systems to enhance navigation safety at sea, or analysed the statistics of marine casualties of different flagged vessels as well as the fatalities and injuries in ferry accidents. However, little research has been devoted to port safety and especially navigation safety within Taiwanese territorial waters where over a 10-year period there have been 3428 marine accidents with 548 deaths and 524 vessels sunk. In this paper, we use the Grey Relational Analysis (GRA) to analyse the marine accident records of each of Taiwan's commercial ports from 1992–2003. Then, after interviewing the port authority managers and marine specialists, we discover the concerns felt by these professionals about Taiwanese commercial ports. We provide suggestions to strengthen port navigation safety.

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