scholarly journals CRITERIA OF SAFETY CONDITION ASSESSMENT

2021 ◽  
pp. 10-16
Author(s):  
Boris Bandurian ◽  
Volodymyr Kovalevskyj ◽  
Denis Tsvaigov
Keyword(s):  
Management System ◽  
Safety Assessment ◽  
Formal Model ◽  
Control Object ◽  
Operating Conditions ◽  
Assessment System ◽  
Assessment Procedure ◽  
Complex Criterion ◽  
Risk Areas ◽  
Object Of Control

The article is the second in a series of articles, united by a single theme of improving the organization of the country’s security management system. The article is completely based on the previous article “Formalization of safety assessment and management” and is a continuation of it. Accordingly, the article uses a unified approach to improving the organization of the management system, the same terminology and notation. It has been determined that the safety assessment significantly depends on the operating conditions of the control object. The approach to formation of structure of criteria of an estimation of a condition of safety on the analysis of full group of conditions of functioning of object of protection and the account of threshold values of complex criteria of an estimation – positive and negative potentials is offered. The possible structure of formation of a complex criterion of safety assessment is considered. The effectiveness of the proposed safety assessment system is based on the formalization of the signs of threats and risks through the analysis of potentials relevant to the object of management. Representation of the object of control in the form of a formal model and the use of a safety chart allows to analyze the safety status on formal grounds and analyze using the proposed comprehensive criterion. The formalization of the safety assessment procedure and the quantitative interpretation of the potentials allow the maximum use of computer information processing in order to timely objectively identify threats, conditions and risk areas.

OPERATIONAL STATE OF BRIDGES OF UKRAINE

2019 ◽  
pp. 57-68
Author(s):  
Larysa Bodnar ◽  
Petro Koval ◽  
Sergii Stepanov ◽  
Liudmyla Panibratets
Keyword(s):  
Management System ◽  
The State ◽  
Operating Conditions ◽  
Bridge Management ◽  
Bridge Management System ◽  
Program Complex ◽  
Operating Condition ◽  
Software Complex ◽  
Automatic Mode ◽  
The Status

A significant part of Ukrainian bridges on public roads is operated for more than 30 years (94 %). At the same time, the traffic volume and the weight of vehicles has increased significantly. Insufficient level of bridges maintenance funding leads to the deterioration of their technical state. The ways to ensure reliable and safe operation of bridges are considered. The procedure for determining the predicted operational status of the elements and the bridge in general, which has a scientific novelty, is proposed. In the software complex, Analytical Expert Bridges Management System (AESUM), is a function that allows tracking the changes in the operational status of bridges both in Ukraine and in each region separately. The given algorithm of the procedure for determining the predicted state of the bridge using a degradation model is described using the Nassie-Schneidermann diagram. The model of the degradation of the bridge performance which is adopted in Ukraine as a normative one, and the algorithm for its adaptation to the AESUM program complex with the function to ensure the probabilistic predicted operating condition of the bridges in the automatic mode is presented. This makes it possible, even in case of unsatisfactory performance of surveys, to have the predicted lifetime of bridges at the required time. For each bridge element it is possible to determine the residual time of operation that will allow predict the state of the elements of the structure for a certain period of time in the future. Significant interest for specialists calls for the approaches to the development of orientated perspective plans for bridge inspection and monitoring of changes in the operational status of bridges for 2009-2018 in Ukraine. For the analysis of the state of the bridge economy, the information is available on the distribution of bridges by operating state related to the administrative significance of roads, by road categories and by materials of the structures. Determining the operating state of the bridge is an important condition for making the qualified decisions as regards its maintenance. The Analytical Expert Bridges Management System (AESUM) which is implemented in Ukraine, stores the data on the monitoring the status of bridges and performs the necessary procedures to maintain them in a reliable and safe operating condition. An important result of the work is the ability to determine the distribution of bridges on the public roads of Ukraine, according to operating conditions established in the program complex of AESUM, which is presented in accordance with the data of the current year. In conditions of limited funding and in case of unsatisfactory performance of surveys, it is possible to make the reasonable management decisions regarding the repair and the reconstruction of bridges. Keywords: bridge management system, operating condition, predicted operating condition, model of degradation, bridge survey plan, highway bridge.

scholarly journals Development and Validation of a Post-Earthquake Safety Assessment System for High-Rise Buildings Using Acceleration Measurements

Mathematics ◽  
2021 ◽  
Vol 9 (15) ◽  
pp. 1758
Author(s):  
Koji Tsuchimoto ◽  
Yasutaka Narazaki ◽  
Billie F. Spencer
Keyword(s):  
Safety Assessment ◽  
Large Scale ◽  
Model Updating ◽  
Safety Evaluation ◽  
Assessment System ◽  
Shaking Table ◽  
Structural Safety ◽  
High Rise ◽  
Steel Building ◽  
Earthquake Safety

After a major seismic event, structural safety inspections by qualified experts are required prior to reoccupying a building and resuming operation. Such manual inspections are generally performed by teams of two or more experts and are time consuming, labor intensive, subjective in nature, and potentially put the lives of the inspectors in danger. The authors reported previously on the system for a rapid post-earthquake safety assessment of buildings using sparse acceleration data. The proposed framework was demonstrated using simulation of a five-story steel building modeled with three-dimensional nonlinear analysis subjected to historical earthquakes. The results confirmed the potential of the proposed approach for rapid safety evaluation of buildings after seismic events. However, experimental validation on large-scale structures is required prior to field implementation. Moreover, an extension to the assessment of high-rise buildings, such as those commonly used for residences and offices in modern cities, is needed. To this end, a 1/3-scale 18-story experimental steel building tested on the shaking table at E-Defense in Japan is considered. The importance of online model updating of the linear building model used to calculate the Damage Sensitive Features (DSFs) during the operation is also discussed. Experimental results confirm the efficacy of the proposed approach for rapid post-earthquake safety evaluation for high-rise buildings. Finally, a cost-benefit analysis with respect to the number of sensors used is presented.

The Dynamic Modeling of PEMFC System for Automotive Application

2008 ◽  
Author(s):  
Sanggyu Kang ◽  
Kyoungdoug Min
Keyword(s):  
Energy Balance ◽  
Thermal Management ◽  
Dynamic Modeling ◽  
Management System ◽  
Mass Conservation ◽  
Cell System ◽  
Operating Conditions ◽  
Automotive Application ◽  
Thermal Management System ◽  
Control Volumes

Water and thermal management are crucial factors in determining the performance of PEMFC for automotive application. In order to investigate the effect of cell humidity and temperature on the performance of PEMFC, a dynamic model of a PEMFC system for automotive application has been developed by using Matlab/Simulink®. The model is composed of a PEM unit cell, membrane humidifier, and thermal management system (TMS). At first, fuel and air are well hydrated by the shell and tube humidifier, then humidified fuel and air flow into the PEMFC for electrochemical reaction. PEMFC temperature was maintained at a constant level by the thermal management system. The active area of PEM model is 240 cm2. The cell was discretized into several control volumes in the through-plane to resolve energy balance and species diffusion. The membrane humidifier model is also discretized into three control volumes in the through-plane to resolve the mass conservation and energy balance. Fuel and air are hydrated by the diffusion of the water through the membrane. The thermal management system consists of radiator, fan and pump. De-ionized water cools down the temperature of PEMFC. In order to validate the model, the model was compared with a corresponding experiment. Comparison shows that simulation results are in good agreement with experiments. And the dynamic response of PEMFC with regard to the change of current was also investigated. The model is useful to elucidate the relationships between operating conditions such as air relative humidity, temperature, etc. It is expected that this dynamic modeling of PEMFC system can contribute to the design optimization of PEM fuel cell system for vehicle application.

scholarly journals Reliability of an Online Geriatric Assessment Procedure Using the interRAI Acute Care Assessment System

2017 ◽  
Vol 65 (9) ◽  
pp. 2029-2036 ◽  
Author(s):  
Melinda G. Martin-Khan ◽  
Helen Edwards ◽  
Richard Wootton ◽  
Steven R. Counsell ◽  
Paul Varghese ◽  
...  
Keyword(s):  
Acute Care ◽  
Geriatric Assessment ◽  
Assessment System ◽  
Assessment Procedure ◽  
Interrai Acute Care ◽  
Care Assessment

scholarly journals Rating assessment of scientific and pedagogical workers: theoretical and methodical aspects within a market approach

2019 ◽  
pp. 84-95
Author(s):  
O. H. Dzoba
Keyword(s):  
Management System ◽  
Assessment System ◽  
Educational Institutions ◽  
Rating Systems ◽  
Higher Educational Institutions ◽  
Theoretical Concepts ◽  
General Management ◽  
Market Approach ◽  
Higher Educational ◽  
Further Development

The article investigates the theoretical and methodological principles of scientific and pedagogical workers rating assessment in higher educational institutions (HEI). According to the results of broad literature analysis, rating systems formation peculiarities of scientific and pedagogical university workers were determined. Further development of approaches to specification and detailing of the essence, functions, purposes and tasks of rating assessment, formation of principles, requirements and criteria, justification and rating models selection, harmonization of theoretical concepts with the practice of applying procedures for rating assessment in the HEI is substantiated. Research novelty is to elaborate on the essence and functions of scientific and pedagogical workers rating assessment system being considered as a multidimensional information system, which in turn is the subsystem of a more general management system. Scientific and pedagogical workers rating assessment system  involves continuous observation, measurement and controlled object conditions evaluation, operational management decisions adoption, ensures the implementation, verification and review of management objectives, promotes educational and scientific standardization processes, provides ongoing regulation and forecasts further development. Rating assessment system is inextricably linked with professional activities monitoring of scientific and pedagogical workers in higher educational institutions and performs similar functions, such as informational, management, systematic, predictive, activating, analytical, qualimetric, corrective, diagnostic and formative ones. An important element of the scientific novelty studies is the feasibility justification of using a market approach based on  marketing, social and ethical concepts marketing in formulating the goals, objectives and rating systems constructing principles for scientific and pedagogical workers. It is established that the most relevant principles in scientific and pedagogical workers rating systems formation are the principles of integrity with the general management system, dynamism and adaptability, orientation towards the needs of educational and scientific services consumers. Prospects for further research are related to the theoretical foundations development and methodology for building marketing complexes of educational and scientific services aimed at maximizing the consumers and society needs, which will be attained through more efficient management of human resource potential based on the use of rating models.

Inter-organisational learning in public safety management system

2019 ◽  
Vol 28 (2) ◽  
pp. 286-298
Author(s):  
Katarzyna Ewa Sienkiewicz-Małyjurek ◽  
Barbara Kożuch ◽  
Jeremi Szczygłowski
Keyword(s):  
Management System ◽  
Public Safety ◽  
Safety Management ◽  
Participant Observation ◽  
Fire Service ◽  
Organisational Learning ◽  
Operating Conditions ◽  
Safety Management System ◽  
Content Type ◽  
The Public

Purpose The purpose of this paper is to recognition and understanding of the inter-organisational learning processes in the public safety management system. Design/methodology/approach The findings presented in this paper are based on empirical data including: first, desk research in the scope of inter-organisational learning; second, participant observation conducted in the Provincial Headquarters of the State Fire Service in the Silesia Province in the years 2013–2014; third, hermeneutic process within a focus group of scholars conducted in December 2014 within a four-person group of researchers. The carried out studies have shown the usefulness of the three-loop learning model appliance. Findings The paper analyses the course of inter-organisational learning in dynamic and uncertain operating conditions. As a result, the main methods and effects of inter-organisational learning in the public safety management system are identified. Originality/value The paper adds a new value to understanding of inter-organisational learning in the framework of public safety management by driving attention to the importance of inter-organisational learning and its practical use. It also provides a useful research model for investigating inter-organisational learning and effective public safety management.

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