Temat: system dependability - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: From reliability to system dependability : theory and models
Autorzy:: Zamojski, W.
Mazurkiewicz, J.
Powiązania:: https://bibliotekanauki.pl/articles/2069569.pdf
Data publikacji:: 2011
Wydawca:: Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:: system reliability
system dependability
networks
services
functional model
dependability model
Opis:: The paper presents a novel approach to system dependability problem. The analysed systems and networks – characterised by different sets of features – are considered as a union of all their resources essential for the predicted tasks realisation. The system dependability is discussed with respect to the occurrence of incidents and treats that may cause to damage the system resources and – in consequence – to the collapse of the executed tasks. The maintenance policy system is based on two main concepts: detection of unfriendly events and system responses to them. The proposed analysis is realised from the user’s point of view, focusing on functional features described by business services available in the system.
Źródło:: Journal of Polish Safety and Reliability Association; 2011, 2, 1; 223--232
2084-5316
Pojawia się w:: Journal of Polish Safety and Reliability Association
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Dependability of discrete transport system : model, simulation, measures
Autorzy:: Mazurkiewicz, J.
Powiązania:: https://bibliotekanauki.pl/articles/2069568.pdf
Data publikacji:: 2011
Wydawca:: Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:: discrete transport system
system dependability
functional model
dependability model
Monte-Carlo simulation
Opis:: The paper proposes a method of reliability and functional analysis related to discrete transport systems. The proposed analysis is based on modelling and simulating of the system behaviour. Monte Carlo simulation is used for proper reliability and functional parameters calculation. The simulator is built using Scalable Simulation Framework (SSF). No restriction on the system structure and on a kind of distribution is the main advantage of the method. The paper presents some exemplar system modelling. The authors stress the problem of influence of the reliability parameters for final functional measures (required time of delivery) – the key value to calculate the availability of the system. They also propose to measure the economic quality of discrete transport system by “profit function”. The presented problem is practically essential for defining an organization of vehicle maintenance and transportation system logistics.
Źródło:: Journal of Polish Safety and Reliability Association; 2011, 2, 1; 143--152
2084-5316
Pojawia się w:: Journal of Polish Safety and Reliability Association
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Critical situations and human resources in discrete transportation systems analysis
Autorzy:: Walkowiak, T.
Mazurkiewicz, J.
Powiązania:: https://bibliotekanauki.pl/articles/2069570.pdf
Data publikacji:: 2011
Wydawca:: Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:: discrete transportation system
system dependability
critical situations analysis
Monte-Carlo simulation
Opis:: The paper presents an approach to critical situations analysis related to discrete transportation systems (DTS). The critical situation is understood as sudden shortage of some system recourses resulting in the transportation system performance degradation. The analysis is realized based on availability calculation of DTS. The system is described by the formal model, which includes reliability and functional parameters of DTS as well as human resources – drivers and management system. The availability and average availability of the system, defined in a functional way, is discussed as a function of different essential parameters of DTS. The proposed analysis is based on the modelling and simulating of the system behaviour using Monte-Carlo approach. The paper presents some exemplar systems – based on real Polish Post DTS – modelling and results.
Źródło:: Journal of Polish Safety and Reliability Association; 2011, 2, 1; 205--216
2084-5316
Pojawia się w:: Journal of Polish Safety and Reliability Association
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Dependability of a discrete transport system
Autorzy:: Zamojski, W.
Powiązania:: https://bibliotekanauki.pl/articles/2069454.pdf
Data publikacji:: 2012
Wydawca:: Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:: dependability
transport system
performability
dependability system model
Opis:: A discrete system performing transport tasks (carriage of goods between the starting and ending points) using the vehicles of limited capacity and reliability is analyzed. The quality of transport tasks depend on the availability of transportation means (cars, roads, etc.), their functional properties (services) and reliability (faults and renewals) and of the system organization (dispatchers / system managers). Unfriendly system events affecting the realization of transport tasks are classified. A dependability model of the discrete transport system is considered as an unreliable service network. Outlined the idea of a maintenance policy system and a problem of synthesis of the discrete transport system.
Źródło:: Journal of Polish Safety and Reliability Association; 2012, 3, 2; 159--168
2084-5316
Pojawia się w:: Journal of Polish Safety and Reliability Association
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Dependability of machine system - usable characteristics
Autorzy:: Smalko, Z.
Powiązania:: https://bibliotekanauki.pl/articles/950093.pdf
Data publikacji:: 2007
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: dependability
machine system
transport
Opis:: The subject of this paper deals with dependability of machine systems base on selected usable characteristics. In the subsystem man-machine and environment, determined tasks are carried out. The sequence of activity is following: man handles machine, which in turn makes the environment deliver desired reaction, e.g. processing or transportation. A machine and desired reaction of environment will recognize the positive effect of above activities as carrying out of set task. It is also of utmost importance that the man and machine's impact on environment is efficient and harmless. Therefore the selection of an adequate machine and its operator to carry out the given task is crucial. The circumstances considered as undesired for task implementation are identified as hazard to man and machine. Within the endangered man - machine and environment subsystem, we can distinguish following phases in the machine degradation process: worthy, partially worthy, partially unworthy, critically unworthy and totally unworthy. The selection of adequate means towards achieving set goals is considered important, and, subsequently, the description of selected machine and human (as operator and decision maker) attributes has been undertaken. The basic attributes of man and machine complex are: adequacy, dependability, safety, durability and effectiveness. Adequacy, described as common machine property, turns out to be a collection of four attributes: functionality, configurability, coverage, and programmability. Reliability, on closer inspection, as a combined property of man -machine complex, is described by four attributes: reliability, redundancy, faultlessness and availability. Safety, as a man - machine - environment property is described by a collection of five attributes: protectionability, hazardousness, harmlessness, safeguardability and deleteriousness. Durability as a machine property can be described by five attributes: strength, refractoriness, maintainability, supportability and serviceability. Effectiveness as a man - machine system property is described by four attributes: efficiency, capability, economically and managementability. It is acceptable to assume that the attributes mentioned above can be of use when selecting machines for outdoor exploitation and facilitating of selected tasks. Particular significance is in the relations between basic attributes of the man - machine - environment subsystem, namely: dependability is the starting point for safety and effectiveness, durability assures dependability, safety and effectiveness, adequacy guarantees a successful outcome of all named attributes of man - machine system.
Źródło:: Journal of KONES; 2007, 14, 2; 433-439
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Dependability study of the ERP system
Autorzy:: Gąska, D.
Świć, A.
Powiązania:: https://bibliotekanauki.pl/articles/118289.pdf
Data publikacji:: 2007
Wydawca:: Polskie Towarzystwo Promocji Wiedzy
Tematy:: dependability
ERP system
availability
Opis:: The paper present the various aspects of the process of testing of the ERP system’s dependability .This process has been systematized using the procedures taken from the Polish Standards and adopted for purposes of the ERP system. Thanks to an introduction of same normalization and the unification of terminology, the testing of the systems dependability under different conditions, as well as for different systems, will be possible. A review of MS Axapta system in relation to the dependability of the functioning of its particular elements, has also been carried out. This was based on previously presented instructions of the dependability test.
Źródło:: Applied Computer Science; 2007, 3, 1; 23-37
1895-3735
Pojawia się w:: Applied Computer Science
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Selected Indicators of the National Distribution System Dependability
Wybrane wskaźniki niezawodnościowe krajowego systemu dystrybucyjnego
Autorzy:: Kornatka, M.
Powiązania:: https://bibliotekanauki.pl/articles/397363.pdf
Data publikacji:: 2013
Wydawca:: ENERGA
Tematy:: dependability
power system
niezawodność
system elektroenergetyczny
krajowy system dystrybucyjny
Opis:: The article discusses a significant problem, which is the analysis of the dependability of the national distribution system. The distribution of selected failure rates was analysed in two perspectives: dependability analysis at the local utility company level, and for the distribution power system. In the first part of the paper failure rates are analysed for five domestic utility companies. The second part presents an analysis of the distribution of SAIDI, SAIFI and MAIFI indicators for domestic distribution system operators in 2007–2012.
W artykule przedstawiono istotny problem, jakim jest analiza niezawodności krajowego systemu dystrybucyjnego. Przeprowadzono analizę rozkładu wybranych wskaźników awaryjności w dwóch ujęciach: analizę niezawodności wyznaczoną z poziomu zakładu energetycznego oraz dla dystrybucyjnego systemu energetycznego. W pierwszej części artykułu przedstawiono analizę awaryjności dla pięciu krajowych zakładów energetycznych. W drugiej części zaprezentowano analizę rozkładu wartości wskaźników SAIDI, SAIFI i MAIFI krajowych operatorów systemu dystrybucyjnego wyznaczonych z lat 2007–2012.
Źródło:: Acta Energetica; 2013, 4; 27-36
2300-3022
Pojawia się w:: Acta Energetica
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Simulation approach to Web system dependability analysis
Autorzy:: Walkowiak, T.
Powiązania:: https://bibliotekanauki.pl/articles/2069527.pdf
Data publikacji:: 2011
Wydawca:: Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:: dependability
performance
availability
reliability
failures
Web system
simulation
Opis:: The paper is concerned with the analysis of under-keel clearance of ships based on real data from Szczecin Maritime Office. Using probabilistic method for UKC assessment give it possibility to create the distribution of under-keel clearance in several ship’s passages and in further step to determine the probability of ship’s grounding accident during the port approach. The results of using this type of model could be used in risk assessment of ships entering to the ports, therefore it is possible to used probabilistic model in Maritime Office employees’ everyday decision making practice. Research results present verification of probabilistic model, based on data from Vessel Traffic Service database and probability of touching the bottom during ships’ passages on Swinoujscie – Szczecin waterway. Moreover there are presented examples of these situations when entering to the port for analysed ships is not allowed according to the model.
Źródło:: Journal of Polish Safety and Reliability Association; 2011, 2, 1; 197--204
2084-5316
Pojawia się w:: Journal of Polish Safety and Reliability Association
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Reliability analysis of complex shipyard transportation system with dependent components
Autorzy:: Blokus-Roszkowska, A.
Kołowrocki, K.
Powiązania:: https://bibliotekanauki.pl/articles/2069360.pdf
Data publikacji:: 2014
Wydawca:: Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:: reliability
multi-state system
ageing
operation process
dependability
complex system
shipyard transportation system
Opis:: In the paper an approach to the reliability analysis of multi-state systems with dependent components operating at variable operation conditions is presented. The multi-state reliability function of complex system is defined and determined for the shipyard rope ship elevator. In developed models, it is assumed that system components have the multi-state exponential reliability functions with interdependent departures rates from the subsets of reliability states.
Źródło:: Journal of Polish Safety and Reliability Association; 2014, 5, 1; 21--32
2084-5316
Pojawia się w:: Journal of Polish Safety and Reliability Association
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Preliminary approach to safety analysis of critical infrastructures
Autorzy:: Kołowrocki, K.
Soszyńska-Budny, J.
Powiązania:: https://bibliotekanauki.pl/articles/2069426.pdf
Data publikacji:: 2012
Wydawca:: Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:: safety
multistate system
aging
operation process
dependability
critical infrastructure
Opis:: In the paper the new results of the safety investigations of the multistate complex systems with dependent components at variable operation conditions called critical infrastructures are presented. The multi-state safety function of the critical infrastructure system is defined and determined for an exemplary critical infrastructure. In the developed models, it is assumed that the system components have the multistate exponential safety functions with interdependent departures rates from the subsets of the safety states.
Źródło:: Journal of Polish Safety and Reliability Association; 2012, 3, 1; 73--88
2084-5316
Pojawia się w:: Journal of Polish Safety and Reliability Association
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 11.

Tytuł:: Time resource problem in logistics systems dependability modelling
Problem rezerwowania czasowego w modelowaniu niezawodności systemów logistycznych
Autorzy:: Werbińska-Wojciechowska, S.
Powiązania:: https://bibliotekanauki.pl/articles/1366223.pdf
Data publikacji:: 2013
Wydawca:: Polska Akademia Nauk. Polskie Naukowo-Techniczne Towarzystwo Eksploatacyjne PAN
Tematy:: delay-time concept
dependability
logistic system
koncepcja opóźnień czasowych
niezawodność
system logistyczny
Opis:: Article presents an overview of some recent developments in the area of mathematical modelling of technical systems’ maintenance decisions with the use of delay-time concept. Thus, the literature overview from 1984-2012 in the analysed research area is given. The problem of time relations occurred in logistic systems performance processes is investigated. Later, the example of DT model implementation in the area of logistic system of sixteen forklifts performance analysis is investigated.
W artykule przedstawiono zagadnienia związane z matematycznym modelowaniem utrzymania systemów technicznych w stanie zdatności z wykorzystaniem koncepcji opóźnień czasowych (DT). Przedstawiono przegląd literatury z badanego obszaru obejmujący okres 1984-2012. Następnie został omówiony problem relacji czasowych w systemach logistycznych. W ostatnim punkcie, został przedstawiony przykład zastosowania modelu DT do oceny niezawodności szesnastu wózków widłowych funkcjonujących w wybranym systemie.
Źródło:: Eksploatacja i Niezawodność; 2013, 15, 4; 427-433
1507-2711
Pojawia się w:: Eksploatacja i Niezawodność
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 12.

Tytuł:: Application of critical infrastructure safety modelling in port transport
Autorzy:: Kołowrocki, K.
Soszyńska-Budny, J.
Powiązania:: https://bibliotekanauki.pl/articles/134979.pdf
Data publikacji:: 2015
Wydawca:: Akademia Morska w Szczecinie. Wydawnictwo AMSz
Tematy:: safety
multi-state system
ageing
operation process
dependability
critical infrastructure
Opis:: A new approach is proposed for safety investigations of complex multistate systems. These systems have dependent components, called critical infrastructures, with variable operating conditions. The safety function of the critical infrastructure system is defined and determined for an exemplary “m out of l” critical infrastructure. In the fully-developed model, it is assumed that system components have multistate exponential safety functions with interdependent departure rates from subsets of safety states. A critical infrastructure safety model is adopted for an oil pipeline transportation system operating in a maritime port.
Źródło:: Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2015, 44 (116); 128-134
1733-8670
2392-0378
Pojawia się w:: Zeszyty Naukowe Akademii Morskiej w Szczecinie
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 13.

Tytuł:: A modelling of disruptions cascade effect within a rail transport system facing a flood hazard
Autorzy:: Gonzva, M.
Barroca, B.
Gautier, P. E.
Diab, Y.
Powiązania:: https://bibliotekanauki.pl/articles/2069263.pdf
Data publikacji:: 2015
Wydawca:: Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:: rail transport system
flood hazard
cascade effect modelling
dependability methods
Opis:: The vulnerability of rail transport systems facing flood hazard, increased by the climate change, is a burning issue for the future urban risks management. Analysing the resilience of rail transport systems against flood hazard appears necessary for improving the proper functioning of cities that strongly depend on such critical infrastructures. The critical infrastructures are complex systems in which the components are particularly interdependent. This interdependency implies many failures caused by cascade effect within the system. From dependability methods, this paper provides a global methodology in order to automatically produce the chains of failures caused by cascade effect within a rail transport system facing to a flood hazard.
Źródło:: Journal of Polish Safety and Reliability Association; 2015, 6, 3; 53--60
2084-5316
Pojawia się w:: Journal of Polish Safety and Reliability Association
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 14.

Tytuł:: On safety of critical infrastructures modeling with application to port oil transportation system
Autorzy:: Kolowrocki, K.
Soszynska-Budny, J.
Powiązania:: https://bibliotekanauki.pl/articles/2069166.pdf
Data publikacji:: 2013
Wydawca:: Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:: safety
multistate system
ageing
operation process
dependability
critical infrastructure
piping transport
Opis:: A new approach to safety investigations of multistate complex systems with dependent components at variable operation conditions called critical infrastructures is proposed. The safety function of the critical infrastructure system is defined and determined for an exemplary “m out of l” critical infrastructure. In the developed model, it is assumed that the system components have the multistate exponential safety functions with interdependent departures rates from the subsets of the safety states. The approach is adapted to safety prediction of oil piping transportation system operating at a maritime port.
Źródło:: Journal of Polish Safety and Reliability Association; 2013, 4, 2; 189--204
2084-5316
Pojawia się w:: Journal of Polish Safety and Reliability Association
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 15.

Tytuł:: Eksploatacja systemu monitorowania procesu strzelań z przeciwlotniczych zestawów rakietowych
Operation of Monitoring a Launching Process for Surface-to-Air Missile Systems
Autorzy:: Sawicki, G.
Sienicki, K.
Wacławik, K.
Powiązania:: https://bibliotekanauki.pl/articles/403284.pdf
Data publikacji:: 2017
Wydawca:: Wojskowa Akademia Techniczna im. Jarosława Dąbrowskiego
Tematy:: eksploatacja
niezawodność
przeciwlotniczy zestaw rakietowy
operation
dependability
surface-to-air missile system
Opis:: W artykule opisano system monitorowania strzelań z przeciwlotniczych zestawów rakietowych. Scharakteryzowano zasady jego eksploatacji. Zaprezentowano wybrane problemy eksploatacyjne.
The paper discusses the monitoring a launching process for surface-to-air missile systems. Operation rules of the monitoring system are characterized. The examples of operation problems are presented.
Źródło:: Problemy Mechatroniki : uzbrojenie, lotnictwo, inżynieria bezpieczeństwa; 2017, 8, 4 (30); 129-140
2081-5891
Pojawia się w:: Problemy Mechatroniki : uzbrojenie, lotnictwo, inżynieria bezpieczeństwa
Dostawca treści:: Biblioteka Nauki

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