scholarly journals Modeling of cable-stayed bridge and research of frequency characteristics

2021 ◽  
pp. 61-66
Author(s):  
Serhii Krasnikov
Keyword(s):  
Natural Frequencies ◽  
Emergency Situation ◽  
Machine Building ◽  
Frequency Characteristics ◽  
Emergency Situations ◽  
Building Models ◽  
Real Model ◽  
Building Systems ◽  
Different Types ◽  
High Degree

The frequency characteristics of the cablestayed bridge according to several of its schemes are considered. The analysis of the influence on the frequency characteristics of the type of resistance according to different sets is carried out. Among the types of resistance were taken complete whitening, hinge and lack of resistance. Goal. The purpose of the study is to determine the causes of emergencies, including those recorded as road accidents. For this purpose it is offered to carry out the analysis of natural frequencies of the cablestayed bridge on its different types of contact (resistance) with columns. The object of this study is a cablestayed bridge, which has been in operation for 45 years. The bridge is a system of three types of elements: pylon, span and columns. The subject of the study is the spectrum of natural frequencies of the bridge according to its various models. Methodology. The research was performed using the methods of oscillations and finite elements, as well as the methods developed by the author for building models of complex machine-building systems. Results. According to the results of the performed researches, mathematical threedimensional finiteelement models of parts and the whole system of the bridge were made for different types of resistance, natural frequencies for each system were obtained. The conducted research provided grounds for conclusions on concretization of the causes of emergency situations and directions for their avoidance. Originality. Regarding the type of developed models of the cablestayed bridge, we note their uniqueness. Due to the existing personalities of the models used, it is possible to model three states of interaction of parts of the system. To conduct a study with a high degree of reliability of the real model, you need to have available data on the types of connections of its elements. This is possible with the help of unique author’s methods of model construction and use of universal possibilities of the finite element method. Research of the bridge by other methods did not allow to solve the set tasks on emergence of emergency situations. Practical value. The results of the work have a direct practical application. Based on the results of the work, a conclusion was made on measures to increase the troublefree operation of the system and measures to avoid the occurrence of an emergency situation.

scholarly journals Medical Drone – A Life Saver in Emergency Situations

2018 ◽  
Vol 7 (2.25) ◽  
pp. 14 ◽  
Author(s):  
A Josephin Arockia Dhivya ◽  
R J. Hemalatha ◽  
T R.Thamizhvani ◽  
Josline Elsa Joseph ◽  
Bincy Babu ◽  
...  
Keyword(s):  
Emergency Situation ◽  
The Body ◽  
Phone Call ◽  
Prototype Model ◽  
Actual Situation ◽  
Emergency Situations ◽  
Critical Situation ◽  
Global Positioning ◽  
Different Types ◽  
Hospital Team

Many thousands of humans are dying day to day due to the delay of ambulances reaching the accident spot at right time.So this prototype explains clearly about the emergent situation of a drone reaching the accident scenario with various sensors.The usage of this technology gradually decreases the fatal cases.It is used to save time and helps in patient’s survival.The technology works such like different types of sensors are fitted to the health drone.When a phone call is given to a prescribed given number,the operator thereby tracks the location and the navigation of the place is tracked using global positioning system.The medical quadcopter or drone arrives at the critical situation and various modes of parameters from the body are measured.This prototype gives the information of the patient to both the hospital sources and the nurses present in the normal ambulance.This flying medical drone reach the spot before the normal ambulance arrives the scene.It also measures the real time actual situation of the patient and it helps in saving a life of a patient.The information regarding the patients health parameters will be sent to concerned hospital staffs and to the respective staffs coming in the ambulance. This helps the paramedics and the doctors to know about the patient’s condition before arriving the spot.This medical drone acts as a tool kit which flies to various emergency Situation. ambulance and the hospital team so that they will be ready to serve to the needs of the patients.The proposed prototype model is used as a support the persons who need immediate attention. 

scholarly journals PREVENTION AND RELIEF OF EMERGENCY CONSEQUENCES IN CANADA: LEGAL AND ORGANIZATIONAL ASPECTS

2017 ◽  
pp. 0-0
Author(s):  
Ирина Тимошенко ◽  
Irina Timoshyenko
Keyword(s):  
Emergency Preparedness ◽  
Public Safety ◽  
Emergency Situation ◽  
Federal Legislation ◽  
Emergency Situations ◽  
Different Types ◽  
Legislative Regulation ◽  
Executive Agencies

Legal and organizational aspects of prevention and relief of emergency in Canada are considered. On the base of analysis of federal legislation particular features of different types of emergency situation provided in the Emergencies Act 1988 are studied. Appraisal of different types of emergency situation classification for practical activities of competent bodies, which are responsible for planning and organization of system of measures against emergency situation, is made. Constitutional division of competencies between federal and provincial authorities respecting matters of federal and provincial concern is studied. The system of responsible bodies, powers and duties of Governor General, main directions of Department of Public Safety and Emergency Preparedness and executive agencies under its auspice activities are explored. Special attention is given to common principles of legislative regulation and practices of prevention and overcoming of emergency situations in the provinces of Canada.

Features of the Organization and Provision of Emergency Psychological Assistance in Various Emergency Situations on the Territory of the Russian Federation

2021 ◽  
pp. 74-83
Author(s):  
Yuliya Shoygu ◽  
L. Timofeeva ◽  
N. Tolubaeva
Keyword(s):  
Mental Health ◽  
Russian Federation ◽  
Large Scale ◽  
Emergency Situation ◽  
Basic Principles ◽  
Emergency Situations ◽  
Psychological Service ◽  
The Russian Federation ◽  
Psychological Assistance ◽  
High Degree

Emergency situations, due to the suddenness of occurrence and catastrophic consequences, have an extremely high degree of danger to the mental health of people. The authors are of the opinion that effectively implemented measures to provide emergency psychological assistance to victims in emergency situations in an acute period contribute to the preservation of human mental health and are an important component of the ability to return to normal life after experiencing tragic events. This article analyzes the experience of the specialists of the psychological service of the Russian Emergencies Ministry in eliminating the consequences of six large-scale emergencies that occurred in the period from 2009 to 2019 in the territory of the Russian Federation. Based on the examples of liquidation of the consequences of specific large-scale emergencies, the basic principles of organizing the activities of the psychological service of the Ministry of Emergencies of Russia are considered, the directions of work and tasks faced by specialists when working in emergency situations, as well as the technologies of organizing work to provide emergency psychological assistance to victims, used by specialists of the psychological service of the Ministry of Emergencies Russia. General approaches to the provision of emergency psychological assistance to victims and relatives of those killed and injured are outlined, two groups of objective parameters that have a direct impact on the organization of the work of specialists and how the specifics of the situation and the region can affect the planning and implementation of measures to provide emergency psychological assistance are described. The authors describe the groups of objective characteristics inherent in a particular emergency situation and determine the importance of taking them into account when planning, organizing and implementing emergency psychological assistance measures.

IMPLEMENTATIONS EMERGENCY RESPONSE SYSTEM IN CASE OF ACCIDENTS AND EMERGENCY SITUATIONS (ERA-GLONASS) FOR CARS AND TRUCKS IN UZBEKISTAN

2020 ◽  
Author(s):  
Akmal Rustamov
Keyword(s):  
Emergency Response ◽  
Call Center ◽  
Emergency Services ◽  
Main Idea ◽  
Emergency Situation ◽  
High Mountain ◽  
Additional Information ◽  
Emergency Situations ◽  
Emergency Response System ◽  
Response System

The paper addresses the problem of increasing transportation safety due to usage of new possibilities provided by modern technologies. The proposed approach extends such systems as ERA-GLONASS and eCall via service network composition enabling not only transmitting additional information but also information fusion for defining required emergency means as well as planning for a whole emergency response operation. The main idea of the approach is to model the cyber physical human system components by sets of services representing them. The services are provided with the capability of self- contextualization to autonomously adapt their behaviors to the context of the car-driver system. The approach is illustrated via an accident emergency situation response scenario. “ERA-GLONASS” is the Russian state emergency response system for accidents, aimed at improving road safety and reducing the death rate from accidents by reducing the time for warning emergency services. In fact, this is a partially copied European e Call system with some differences in the data being transmitted and partly backward compatible with the European parent. The principle of the system is quite simple and logical: in the event of an accident, the module built into the car in fully automatic mode and without human intervention determines the severity of the accident, determines the vehicle’s location via GLONASS or GPS, establishes connection with the system infrastructure and in accordance with the protocol, transfers the necessary data on the accident (a certain distress signal). Having received the distress signal, the employee of the call center of the system operator should call the on-board device and find out what happened. If no one answers, send the received data to Sistema-112 and send it to the exact coordinates of the team of rescuers and doctors, and the last one to arrive at the place is given 20 minutes. And all this, I repeat, without the participation of a person: even if people caught in an accident will not be able to independently call emergency services, the data on the accident will still be transferred. In this work intended to add some information about applying system project in Uzbek Roads especially mountain regions like “Kamchik” pass. The Kamchik Pass is a high mountain pass at an elevation of 2.306 m above the sea level, located in the Qurama Mountains in eastern Uzbekistan and its length is about 88km.The road to reach the pass is asphalted, but there are rough sections where the asphalt has disappeared. It’s called A373. The old road over the pass was by passed by a tunnel built in 1999. On the horizon, the snow-capped peaks of the Fan Mountains come into view. The pass is located in the Fergana Valley between the Tashkent and Namangan Regions.

METHODS FOR RESTORING WOLVES OF ROLLING PRODUCTION

2020 ◽  
Vol 4 (141) ◽  
pp. 114-122
Author(s):  
DAR’YA LEBEDEVA ◽  
◽  
ANNA KARPUNICHEVA
Keyword(s):  
Thermal Effects ◽  
Machine Building ◽  
Research Purpose ◽  
Technical Literature ◽  
Production Methods ◽  
Advantages And Disadvantages ◽  
Rolling Production ◽  
Machine Parts ◽  
The Stability ◽  
High Degree

Large forces and significant thermal effects are created on the rolls when rolling sheets. The higher the stability of the rolls, the less downtime during their rerolling and higher productivity. (Research purpose) The research purpose is in analyzing the ways of restoring rolls and choose the most appropriate method for restoring these parts. (Materials and methods) The article presents the analysis of the scientific and technical literature on the topic of rolling production, methods for restoring large-sized machine parts of machine-building and metallurgical industries that work in difficult conditions and are subject to a high degree of wear. Authors try to solve the problem by means of comparative and logical analysis based on theoretical and empirical methods of scientific research. (Results and discussion) The article presents two groups of methods for restoring rolled rolls: banding and surfacing the working layer of the roll. Authors have analyzed each method in terms of technology, equipment, and feasibility. The article presents the advantages and disadvantages of the methods under consideration. (Conclusions) The most acceptable way to restore parts with a high degree of wear is surfacing. It is most efficient to apply submerged surfacing using an additional hot additive. Such surfacing, despite some complication of the equipment design, allows to deposit the metal on the roll with low heat input and in most cases in one pass. Surfacing using an additional hot additive allows to increase the productivity of the process by up to 250 percent while reducing the penetration depth by 2-3 times and saving energy by up to 40 percent.

scholarly journals Mobile Application Design Emergency Medical Call for the Deaf using UCD Method

2018 ◽  
Vol 12 (3) ◽  
pp. 168 ◽  
Author(s):  
Risald Risald ◽  
Suyoto Suyoto ◽  
Albertus Joko Santoso
Keyword(s):  
Hearing Loss ◽  
Emergency Situation ◽  
Emergency Call ◽  
Medical Emergency ◽  
Deaf People ◽  
User Centered Design ◽  
Emergency Situations ◽  
The People ◽  
Emergency Event ◽  
Audio Communication

<p>Deaf or hearing loss is a condition of inability to hear something, either totally or partially. Hearing loss greatly affects the life of a person in communicating with the people around him. Deaf people will be very difficult when in a medical emergency, this is because the medical emergency situation requires fast action.</p><p>          The Healthy Phone application is a mobile medical emergency call application that can help people with hearing impaired when in emergency situations. With the Healthy Phone application, the user only needs to select an icon that suits the situation encountered in touchscreen mobile device then the message will be sent to the nearest hospital.</p>                To search for icons corresponding to emergencies, the User Centered Design (UCD) method is used. This application is very helpful for deaf people because this application does not require audio communication and user location is also sent automatically to the nearest hospital. The results were analyzed using four emergency event scenarios with a total score of 87% and an average user time of less than 0:42 sec indicating that the study was successful in designing a mobile medical emergency call application according to user requirements.

Probiotics for the Chemoprotective Role Against the Toxic Effect of Cancer Chemotherapy

2021 ◽  
Vol 21 ◽  
Author(s):  
Aafrin Waziri ◽  
Charu Bharti ◽  
Mohammed Aslam ◽  
Parween Jamil ◽  
Aamir Mirza ◽  
...  
Keyword(s):  
Side Effects ◽  
Clinical Management ◽  
Clinical Evidence ◽  
Unmet Need ◽  
Chemotherapeutic Agents ◽  
Antitumor Effects ◽  
Anti Cancer ◽  
Different Types ◽  
Growth Promoting ◽  
High Degree

Background: The processes of chemo- and radiation therapy-based clinical management of different types of cancers are associated with toxicity and side effects of chemotherapeutic agents. So, there is always an unmet need to explore agents to reduce such risk factors. Among these, natural products have generated much attention because of their potent antioxidant and antitumor effects. In the past, some breakthrough outcomes established that various bacteria in the human intestinal gut are bearing growth-promoting attributes and suppressing the conversion of pro-carcinogens into carcinogens. Hence, probiotics integrated approaches are nowadays being explored as rationalized therapeutics in the clinical management of cancer. Methods: Here, published literature was explored to review chemoprotective roles of probiotics against toxic and side effects of chemotherapeutics. Results: Apart from excellent anti-cancer abilities, probiotics are bearing and alleviate toxicity and side effects of chemotherapeutics, with a high degree of safety and efficiency. Conclusion: Preclinical and clinical evidence suggested that due to the chemoprotective roles of probiotics against side effects and toxicity of chemotherapeutics, their integration in chemotherapy would be a judicious approach.

Toxicity And Surface Modification Of Dendrimers: A Critical Review

2021 ◽  
Vol 18 ◽  
Author(s):  
Rohini Kharwade ◽  
Payal Badole ◽  
Nilesh Mahajan ◽  
Sachin More
Keyword(s):  
Surface Modification ◽  
Positive Charge ◽  
Haematological Toxicity ◽  
Three Dimensional ◽  
Different Types ◽  
Hemolytic Toxicity ◽  
High Degree ◽  
Core Functionality ◽  
Polymeric Structures

: As compared to other nano polymers, dendrimers have novel three dimensional, synthetic hyperbranched, nano-polymeric structures. The characteristic of these supramolecular dendritic structures has a high degree of significant surface as well as core functionality in the transportation of drugs for targeted therapy, specifically in host-guest response, gene transfer therapy and imaging of biological systems. However, there are conflicting shreds of evidence regarding biological safety and dendrimers toxicity due to their positive charge at the surface. It includes cytotoxicity, hemolytic toxicity, haematological toxicity, immunogenicity and in vivo toxicity. Therefore to resolve these problems surface modification of the dendrimer group is one of the methods. From that point, this review involves different strategies which reduce the toxicity and improve the biocompatibility of different types of dendrimers. From that viewpoint, we broaden the structural and safe characteristics of the dendrimers in the biomedical and pharmaceutical fields.

scholarly journals Probabilistic-deterministic approach of controlling the functionality of a technical system in normal and emergency operation modes

2018 ◽  
Vol 226 ◽  
pp. 04008
Author(s):  
Vladimir M. Zababurin ◽  
Marina A. Egorova ◽  
Yuliya A. Polyakova
Keyword(s):  
Open Systems ◽  
System Development ◽  
Emergency Situation ◽  
Emergency Operation ◽  
Technical System ◽  
Emergency Situations ◽  
Recovery Processes ◽  
Current State ◽  
Self Organized Criticality ◽  
Technical Systems

The main disadvantages of the existing methods of managing the current state of technical systems are revealed. A non-standard approach is proposed for managing the functionality of the system in emergency situations. The character of the dynamics of the recovery processes of the technical system is determined as its state approaches the emergency one on the basis of the recommendations of the theory of self-organized criticality (SOC). The physical criteria for assessing the current state of the technical system are revealed. The rationale for using the physical indicator of the functional destabilization of the system is given. The signs of the pre-emergency state of the technical system are considered. A grapho-analytical model for the development of an emergency situation has been developed. The fact of the inevitable increase in the entropy of the system upon its transition to an emergency state is established. Structuring of the system development process in an emergency situation is carried out in three stages. The methodology for estimating the pre-emergency state of complex open systems is presented. The advantages of the proposed approach to managing the state of technical systems in comparison with traditional ones are established.

scholarly journals Emergency: definitions, problems and solutions

2021 ◽  
Vol 17 (7) ◽  
pp. 15-19
Author(s):  
V.P. Мiroshnychenko
Keyword(s):  
External Environment ◽  
Emergency Situation ◽  
Anthropogenic Activity ◽  
Emergency Situations ◽  
Problems And Solutions ◽  
The Subject ◽  
Definition Of

Emergency situations constantly accompany the external environment and society bringing major material losses and human casualties. The definitions and general patterns for the development of emergency situations and their role in accidents and disasters were discussed. Actually, there is no single concept in the definition of an emergency. Based on the ana-lysis, the content of the subject was formulated: an emergency is a state of natural and anthropogenic activity in the external environment and society. The mechanism of the emergency situation development is presented. The reason for changing the normative definition of the concept of emergency situation has been substantiated.

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