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Wyszukujesz frazę "computer safety" wg kryterium: Temat


Tytuł:
A model for intelligent protection of critical computer systems
Autorzy:
Gonzalez, Fernando
Rusinkiewicz, Marek
Zalewski, Janusz
Powiązania:
https://bibliotekanauki.pl/articles/1954577.pdf
Data publikacji:
2021
Wydawca:
Politechnika Gdańska
Tematy:
computer safety
computer security
critical systems
intelligent systems
safety security modeling
bezpieczeństwo komputera
systemy krytyczne
systemy inteligentne
bezpieczeństwo
modelowanie bezpieczeństwa
Opis:
We propose a unified model for the enforcement of safety and security of cyber-physical systems in critical applications. We argue that the need for resilience of a critical system requires simultaneous protection from hazards (safety) and from unauthorized access (security). We review how the critical system properties are handled and present a framework for their modeling. Then we present a model for the enforcement of critical system properties through situational awareness, including threat monitoring, data analysis and state prediction for decision making. We conclude by presenting a case study of a power grid simulation and advocate the ability to move from today's reactive approaches to proactive ones that aim at avoiding system failures.
Źródło:
TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk; 2021, 25, 3; 279-294
1428-6394
Pojawia się w:
TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A method of verifying the robots trajectory for goals with a shared workspace
Autorzy:
Anczarski, Jakub
Bochen, Adrian
Głąb, Marcin
Jachowicz, Mikołaj
Caban, Jacek
Cechowicz, Radosław
Powiązania:
https://bibliotekanauki.pl/articles/2097425.pdf
Data publikacji:
2022
Wydawca:
Polskie Towarzystwo Promocji Wiedzy
Tematy:
computer applications
robot safety
virtual reality
Opis:
The latest market research (Fanuc Polska 2019) shows that the robotization of the Polish industry is accelerating. More and more companies are investing in robotic production lines, which enable greater efficiency of implemented processes and reduce labour costs. The article presents the possibilities of using virtual reality (VR) for behavioural analysis in open robotic systems with a shared workspace. The aim of the article is to develop a method of verification of programmed movements of an industrial robot in terms of safety and efficiency in systems with a shared workspace. The method of the robot program verification on the digital model of the working cell made in VR will be checked. The obtained research results indicate a great potential of this method in industrial applications as well as for educational purposes.
Źródło:
Applied Computer Science; 2022, 18, 1; 37--44
1895-3735
Pojawia się w:
Applied Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Systemy i programy informatyczne w zarządzaniu bezpieczeństwem i higieną pracy stosowane w dydaktyce
IT systems and programs in health and safety management used in didactics
Autorzy:
Kowalczyk, S.
Powiązania:
https://bibliotekanauki.pl/articles/312915.pdf
Data publikacji:
2018
Wydawca:
Instytut Naukowo-Wydawniczy "SPATIUM"
Tematy:
bezpieczeństwo
systemy informatyczne
zarządzanie bezpieczeństwem
safety
computer systems
safety management
Opis:
W artykule omówiono zasady wykorzystania programów informatycznych w kształceniu studentów studiów licencjackich w dziedzinie bezpieczeństwa i higieny pracy w uczelni niepublicznej. Scharakteryzowano dostępne systemy wspomagające ocenę ryzyka zawodowego.
The article discusses the principles of using IT programs in the education of undergraduate students in the field of occupational safety and health at a non-public university. The available systems supporting the assessment of occupational risk have been characterized.
Źródło:
Autobusy : technika, eksploatacja, systemy transportowe; 2018, 19, 12; 1089-1093
1509-5878
2450-7725
Pojawia się w:
Autobusy : technika, eksploatacja, systemy transportowe
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Survey questionnaire for the study on occupational safety culture in a production plant. Construction and statistical verification of data correctness
Autorzy:
Krupa, Patryk
Gabryelewicz, Izabela
Edl, Milan
Pantya, Peter
Patalas-Maliszewska, Justyna
Powiązania:
https://bibliotekanauki.pl/articles/406950.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
safety analysis
correlation coefficients
computer programs
software safety
process identification
Opis:
The article presents the issue related with a proper preparation of a data sheet for the analysis, the way of verifying the correctness and reliability of input information, and proper data encoding. Improper input or coding of data can significantly influence the correctness of performed analyses or extend their time. This stage of an analysis is presented by an authorship questionnaire for the study on occupational safety culture in a manufacturing plant, using the Statistica software for analyses. There were used real data, obtained during the research on the issue of occupational safety and factors having the greatest influence on the state of occupational safety.
Źródło:
Management and Production Engineering Review; 2019, 10, 2; 101--108
2080-8208
2082-1344
Pojawia się w:
Management and Production Engineering Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Preliminary investigation of dynamic loads of the crew of the armoured personnel carrier during frontal crash
Autorzy:
Borkowski, W.
Hryciów, Z.
Powiązania:
https://bibliotekanauki.pl/articles/241797.pdf
Data publikacji:
2008
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
armoured personnel carrier
impact
passive safety
computer simulation
Opis:
On the work one described chosen problems concerning of threats of the crew of the armoured personnel carrier with dynamic loads during crushing the obstacle. One paid attention on the lack of regulations regulative this problems. One described the general construction, and also worked out model of the armoured personnel carrier and crashed object. To the modelling one used the software LS-DYNA, using the method of finite elements. One gave also conditions for carrying out the numeric research. On the work one placed example results of numerical tests, deformations and stresses in the hull of the vehicle and in the crashed gate. One placed also example-courses of the speed and accelerations of chosen elements of the vehicle and people inside. On the basis on received results of simulation research one evidenced high level threats of the crews, liable to be effective with serious offences, particularly of the head and the spine. One qualified also directions and the range of further works targeting the improvement of the safety of the crew, in this taking into account the use of investigative dummy man. To further research one proposed models of dummy man Hybrid III, which for the necessity of taking in to consideration of additional elements of the equipment of soldiers (e.g. the helmet, the weapon, the bullet-proof vest) must be however properly modified. One pointed also on the necessity of working out the additional protective devices and also formulate the methodology of the experimental research.
Źródło:
Journal of KONES; 2008, 15, 4; 57-62
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Automatic control of ship motion conducting search in open waters
Autorzy:
Kula, Krzysztof Stefan
Powiązania:
https://bibliotekanauki.pl/articles/1573705.pdf
Data publikacji:
2020
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
computer control
IMC control
safety and risk analysis
Opis:
In this work a search operation support system is presented, which is an additional autopilot function block. Its task is to lead a vessel included in the search by the SAR services to the datum position on the basis of the data entered by the operator into the system and then automatically to search the indicated area according to the newly defined search pattern. The set goal can be achieved thanks to the autopilot that guides the ship along a given trajectory consisting of straight lines and arcs. High control accuracy is provided by the IMC control system using a relatively simple non-linear ship model. The simulation tests of the tanker model confirmed that the indicated search area can be precisely checked in a shorter time than when using the expanding square search pattern.
Źródło:
Polish Maritime Research; 2020, 4; 157-169
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Testing the results of a passenger vehicle collision with a rigid barrier
Autorzy:
Borkowski, W.
Hryciów, Z.
Rybak, P.
Wysocki, J.
Powiązania:
https://bibliotekanauki.pl/articles/245925.pdf
Data publikacji:
2010
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
road safety barrier
crash tests
computer simulation
LS-DYNA
Opis:
High accident index in Poland, including one of the highest death rates in EU, forces undertaking the intense works in order to improve traffic safety. Published road accident statistics indicate that the most dangerous accidents include a vehicle collision with a tree, post or other road object. The road safety barriers make the road infrastructure elements that can signiflcantly protect against that type of accidents. The work presents basie tasks and requirements imposed on the barriers. Problems related to a proper selection of the barriers have been also highlighted. The tools facilitating the barrier design include numerical modelling. The modelling has been done by means of the LS-DYNA software, using the finite element method. A general structure and a developed barrier model as well as vehicle model have been presented. The conditions of the numerical tests have been also specifled. The work presents the results of influence of car impact angle with a rigid safety barrier. Presented results refer to a car o f mas s of 900 kg, making a bas is for the tests of the limiting systems for several limiting levels: including normal limit N2 (according to EN 1317-2). Compared to standard requirements, the scope of numerical tests has been extended by other car impact angle values. The work presents vehicle trajectories and deformations of their bodies. It also includes examples of velocities and acceleration courses and acceleration severity indexes (ASI) calculated on their basis. Obtained results indicate that the barrier location angle has a high influence on the safety level ofthe car passengers as well as on the car motion trajectory after collision
Źródło:
Journal of KONES; 2010, 17, 1; 51-57
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Numerical simulation of the standard TB11 and TB32 tests for a concrete safety barrier
Autorzy:
Borkowski, W.
Hryciów, Z.
Rybak, P.
Wysocki, J.
Powiązania:
https://bibliotekanauki.pl/articles/247654.pdf
Data publikacji:
2010
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
road safety barrier
crash tests
computer simulation
LS-DYNA
Opis:
The work presents the traffic safety issue related to a use of the road protective barriers. It describes a purpose and tasks that should be fulfilled by the safety system. Conditions of crash tests and their evaluation according to the requirements of the existing standard documents are also presented. The purpose of the work was to evaluate the influence of applied barrier type on the car collision process. A barrier composed of the segments that can move on the ground due to the impact force and a barrier fixed to the road surface were assumed for the model tests. The modelling was carried out by means of the LS-DYNA sofrware, using the finite element method. The tests were performed for two types of cars, mass of 900 kg and 1500 kg. The work includes the numerical test results, deformations of car bodies and barrier displacement. Examples of velocities and acceleration courses of selected vehicle elements and the ASI index, calculated on their basis, used for evaluation of the passenger danger level were also presented. Obtained results indicate a significant influence of the barrier installation method (joint with the road) on the collision process course and dynamic loads affecting the car passengers. They also indicate directions of safety improvement.
Źródło:
Journal of KONES; 2010, 17, 4; 63-71
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Studies on the effectiveness of the innovative road safety system
Autorzy:
Borkowski, W.
Hryciów, Z.
Rybak, P.
Wysocki, J.
Wiśniewski, A.
Powiązania:
https://bibliotekanauki.pl/articles/242956.pdf
Data publikacji:
2014
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
road safety barrier
crash tests
computer simulation
LS-DYNA
FEM
Opis:
The paper evaluates the effectiveness of the innovative road safety system equipped with prototype component segments composed of a body made of a plastic filled with reinforced concrete. Main advantages of the new safety barrier include increased resistance to corrosion as well as easy transport and assembly directly on a road section being secured. Model tests were performed on a car of 900 kg weight allowing for carrying out the TB11 tests according to the EN 1317-2 standard. LS-DYNA software was applied for modelling, using the finite element method. The work presents the numerical test results, trajectory of vehicle movement after collision as well as the concrete barrier displacement. It also includes examples of stress in steel bars and joint coupling. Detailed assessing of simulation test results were made on the basis of ASI, THIV and PHD index. They were calculated on the basis of velocity and acceleration courses of selected car bodywork points. Numerical test results confirm the fact that this system meets the normative requirements. They allow for qualifying that system for B impact severity level and W4 working width. The results presented in the paper make the initial stage of the study and further calculations will be oriented towards a possibility of meeting the requirements for higher restraint levels.
Źródło:
Journal of KONES; 2014, 21, 2; 27-32
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
ERGONOMIC WORK CULTURE AS A PREREQUISITE FOR HEALTHY COMPUTER WORK TOWARDS QUALITY OF LIFE
ERGONOMICZNA KULTURA PRACY JAKO WARUNEK WSTĘPNY DLA ZDROWEJ PRACY Z KOMPUTEREM POD WZGLĘDEM JAKOŚCI ŻYCIA
Autorzy:
Gedrovics, Janis
Bílek, Martin
Powiązania:
https://bibliotekanauki.pl/articles/479489.pdf
Data publikacji:
2012-12-10
Wydawca:
Uniwersytet Zielonogórski. Instytut Inżynierii Bezpieczeństwa i Nauk o Pracy. Polskie Towarzystwo Profesjologiczne.
Tematy:
ergonomic culture
safety culture
computer
ergonomiczna kultura
kultury bezpieczeństwa
komputer
Opis:
Ergonomic culture can be explained as a component of general safety culture related to ergonomic working environment on the one hand, and computer users’ attitudes towards ergonomically safe computer use, defined by work safety regulations, on the other hand. Both those aspects are important components within general safety culture. The article analyses various factors of ergonomic culture in different environments in Latvia, as well as partially in the Czech Republic and Slovakia.
Ergonomiczna kultura może być wyjaśniona jako składnik ogólnej kultury bezpieczeństwa odnoszącej się do ergonomii środowiska pracy z jednej strony i postaw użytkowników komputerów i ergonomicznie bezpiecznego korzystania z komputera, określonej przez przepisy bezpieczeństwa pracy, z drugiej strony. Oba te aspekty stanowią ważne komponenty wewnątrz ogólnej kultury bezpieczeństwa. Artykuł analizuje różne czynniki kultury ergonomicznej w różnych środowiskach na Łotwie, jak i częściowo w Czechach i na Słowacji.
Źródło:
Problemy Profesjologii; 2012, 2; 153-162
1895-197X
Pojawia się w:
Problemy Profesjologii
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of computer workstations ergonomics and its relationship with reported musculoskeletal and visual symptoms among university employees in Jordan
Autorzy:
Shahwan, Batool S.
D'emeh, Waddah M.
Yacoub, Mohammed I.
Powiązania:
https://bibliotekanauki.pl/articles/2084879.pdf
Data publikacji:
2022-04-11
Wydawca:
Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
Tematy:
Jordan
ergonomics
workplace safety
musculoskeletal symptoms
computer workstations
visual symptoms
Opis:
ObjectivesComputer workstations are considered a potential workplace hazard. This study sought to evaluate computer workstation ergonomics in a university office environment, and to determine its relationship with musculoskeletal (MS) and visual symptoms reported by employees.Material and MethodsThis was a cross-sectional observational study. A total of 231 university employees were recruited using a stratified random sampling technique. By means of direct observation, computer workstations were evaluated using the Occupational Safety and Health Administration (OSHA) Ergonomic Computer Workstation Evaluation Checklist. In addition, the participants reported MS and visual symptoms during the past week and 12 months by completing questionnaires.ResultsSeveral ergonomic deficiencies in computer workstations were identified. Seating, working area, and keyboard and input devices had the most documented deficits. A significant proportion of employees reported various MS symptoms during the past 12 months. The most affected body parts were the shoulders (37%), the lower back (34%), and the neck (29%). The most prevalent visual symptom was tired eyes (68%). Logistic regression analysis indicated that MS symptoms, such as ache, pain and discomfort, were significantly associated with the total scores on the OSHA components. Deficits in monitor ergonomics and its placement, particularly the presence of glare reflected on the screen, were also associated with reported visual symptoms. Independent variables, such as gender, age, employment duration, job type, daily computer work hours, and work pattern, reliably predicted the participants’ reported experience of various MS and visual symptoms.ConclusionsBoth MS and visual symptoms are associated with deficits in computer workstation ergonomics. Appropriate strategies, work practices, and preventive measures are needed to eliminate occupational hazards associated with computer workstations.
Źródło:
International Journal of Occupational Medicine and Environmental Health; 2022, 35, 2; 141-156
1232-1087
1896-494X
Pojawia się w:
International Journal of Occupational Medicine and Environmental Health
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Program komputerowy ProSIL do wspomagania zarządzaniem bezpieczeństwa funkcjonalnego
ProSIL software for computer aided functional safety management
Autorzy:
Barnert, T.
Kacprzak, P.
Kosmowski, K.
Kozyra, M.
Porzeziński, M.
Śliwiński, M.
Zawalich, J.
Powiązania:
https://bibliotekanauki.pl/articles/2069719.pdf
Data publikacji:
2011
Wydawca:
Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:
bezpieczeństwo funkcjonalne
zarządzanie wspomagane komputerowo
funkcje bezpieczeństwa
nienaruszalność bezpieczeństwa
functional safety
computer aided management
safety-related functions
safety integrity
Opis:
In this article a prototype ProSIL software system for computer-aided functional safety management is discribed. The software consists of three modules for: determination of the required SIL level (ProSILen), veryfication of the SIL level (ProSILver), and layer of protection analysis (ProSIL/LOPA). In ProSIL the methods concerning functional safety analysis in the process of the design and operation of Safety Instrumented Systems (SIS) are implemented according to PN-EN 61508 and PN-EN 61511 standards, and some new methods, e.g. the calibrated risk graph method for determining required safety integrity level (SIL) based on the risk assessment. Moreover, methods of veryfying the SIL level of SIS. The Layer of Protection Analysis (LOPA) method with regard to Human Reliability Analysis (HRA) are also included in the software.
Źródło:
Journal of Polish Safety and Reliability Association; 2011, 2, 3; 87--96
2084-5316
Pojawia się w:
Journal of Polish Safety and Reliability Association
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Sensitivity of the game control of ship in collision situations
Autorzy:
Lisowski, J.
Powiązania:
https://bibliotekanauki.pl/articles/258832.pdf
Data publikacji:
2015
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
marine transport
safety of navigation
game control
sensitivity analysis
computer simulation
Opis:
The paper introduces the application of the theory of deterministic sensitivity control systems for sensitivity analysis taking place in game control systems of moving objects, such as ships. The sensitivity of parametric model of game ship control process and game control in collision situations - sensitivity to changes in its parameters have been presented. First-order and k-th order sensitivity functions of parametric model of the process and game control are described. The structure of the game ship control system in collision situations and the mathematical model of game control process in the form of state equations are given. Characteristics of sensitivity functions of the model and game ship control process on the base of computer simulation in Matlab/Simulink software have been presented. At the end are given proposals regarding the use of sensitivity analysis to practical synthesis of computer-aided system navigator in potential collision situations.
Źródło:
Polish Maritime Research; 2015, 4; 27-33
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Metody kształtowania bezpieczeństwa pracy z użyciem technologii informatycznych
Methods for shaping the work safety with use of information technologies
Autorzy:
Michalak, D.
Jaszczyk, Ł.
Rozmus, M.
Wołczyk, W.
Lesisz, R.
Powiązania:
https://bibliotekanauki.pl/articles/199657.pdf
Data publikacji:
2015
Wydawca:
Instytut Techniki Górniczej KOMAG
Tematy:
analiza ergonomiczna
metody komputerowe
bezpieczeństwo
szkolenia
ergonomic analyses
computer methods
safety
trainings
Opis:
W artykule zawarto przykłady rozwiązań opracowanych w Laboratorium Metod Modelowania i Ergonomii ITG KOMAG z zakresu kształtowania bezpieczeństwa pracy, z użyciem technologii informatycznych. Można je implementować zarówno na etapie projektowania maszyny, jak i podczas jej eksploatacji. W artykule przedstawiono także innowacyjne metody i środki informatyczne wspomagające bezpieczną realizację czynności utrzymania ruchu oraz realizację szkoleń.
Examples of solutions developed in the Laboratory of Modelling Methods and Ergonomics at the KOMAG Institute of Mining Technology for shaping the work safety with use of information technologies are given. They can be implemented both at the stage of designing the machine as well as during its operation. Innovative methods and information tools aiding the safe maintenance as well as trainings are presented.
Źródło:
Maszyny Górnicze; 2015, 33, 3; 97-104
0209-3693
2450-9442
Pojawia się w:
Maszyny Górnicze
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Computer-integrated system of decision-making support of control of tires operation of trucks
Кompjuterno-integrirovannaja sistema podderzhki prinjatija upravlenija ehkspluataciejj shin gruzovykh avtomobilejj
Autorzy:
Kravchenko, A.
Sakno, O.
Powiązania:
https://bibliotekanauki.pl/articles/792606.pdf
Data publikacji:
2014
Wydawca:
Komisja Motoryzacji i Energetyki Rolnictwa
Tematy:
computer integrated system
decision-making support
tire
truck
maintenance
road safety
software
Źródło:
Teka Komisji Motoryzacji i Energetyki Rolnictwa; 2014, 14, 1
1641-7739
Pojawia się w:
Teka Komisji Motoryzacji i Energetyki Rolnictwa
Dostawca treści:
Biblioteka Nauki
Artykuł

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