Search results for: network resilience - Bridge of Knowledge

Search

Search results for: network resilience

Search results for: network resilience

  • Information-driven network resilience: Research challenges and perspectives

    Publication
    • J. Rak
    • D. Papadimitriou
    • H. Niedermayer
    • P. Romero

    - Optical Switching and Networking - Year 2017

    Internet designed over 40 years ago was originally focused on host-to-host message delivery in a best-effort manner. However, introduction of new applications over the years have brought about new requirements related with throughput, scalability, mobility, security, connectivity, and availability among others. Additionally, convergence of telecommunications, media, and information technology was responsible for transformation...

    Full text to download in external service

  • A repeated game formulation of network embedded coding for multicast resilience in extreme conditions

    Publication
    • C. Esposito
    • A. Castiglione
    • F. Palmieri
    • F. Pop
    • J. Rak

    - Year 2017

    Computer networks and data sharing applications are vital for our current society and fundamental for any available ICT solution, so that networking is considered as one of the key critical infrastructures and its correct behavior should be always enforced, even in case of disasters or severe execution conditions. Resilience is a strongly demanding nonfunctional requirement for current computer networks, and one of the key factors...

    Full text to download in external service

  • Disciplines and measures of information resilience

    Publication
    • J. Rak
    • M. Jonsson
    • D. Hutchison
    • J. Sterbenz

    - Year 2017

    Communication networks have become a fundamental part of many critical infrastructures, playing an important role in information delivery in various failure scenarios triggered e.g., by forces of nature (including earthquakes, tornados, fires, etc.), technology-related disasters (for instance due to power blackout), or malicious human activities. A number of recovery schemes have been defined in the context of network resilience...

    Full text to download in external service

  • Resilience of 5G Mobile Communication Systems to Massive Disruptions

    Publication

    - Year 2020

    This chapter discusses vital techniques to enhance the resilience of 5G systems. It starts with dependability assessment of 5G networks. Next, it describes (a) the frequency fallback technique to improve availability and survivability of 5G services, (b) segment interleaving scheme to enhance communications resilience between base stations and the remaining part of the network and (c) multi-operator protection to address the resilience...

    Full text to download in external service

  • Service-based Resilience for Embedded IoT Networks

    Publication

    - Year 2020

    Embedded IoT networks are the backbone of safety-critical systems like smart factories, autonomous vehicles, and airplanes. Therefore, resilience against failures and attacks should be a prior concern already in their design stage. In this study, we introduce a service-based network model as an MILP optimization problem for the efficient deployment of a service overlay to the embedded network by meeting QoS and resilience requirements....

    Full text to download in external service

  • Assessment of Connectivity-based Resilience to Attacks Against Multiple Nodes in SDNs

    Publication
    • D. Santos
    • A. de Sousa
    • C. Mas-Machuca
    • J. Rak

    - IEEE Access - Year 2021

    In Software Defined Networks (SDNs), the control plane of a network is decoupled from its data plane. For scalability and robustness, the logically centralized control plane is implemented by physically placing different controllers throughout the network. The determination of the number and placement of controllers is known as the Controller Placement Problem (CPP). In the regular (i.e., failure-free) state, the control plane...

    Full text available to download

  • Interdependence between Power Grids and Communication Networks: A Resilience Perspective

    Publication
    • L. Martins
    • R. Girao-Silva
    • L. Jorge
    • A. Gomes
    • F. Musumeci
    • J. Rak

    - Year 2017

    Power network resilience is increasingly dependent on communication networks. Besides traditional generation, power networks need to accommodate increasingly high penetration levels of dispersed micro generation, mostly based on renewable sources, and increasing and challenging demand, such as electric vehicles. At the same time the deployment of enabling technologies throughout the power grid makes available new demand resources...

    Full text to download in external service

  • eFRADIR: An Enhanced FRAmework for DIsaster Resilience

    Publication
    • A. Pasic
    • R. Girao-Silva
    • F. Mogyorosi
    • B. Vass
    • T. Gomes
    • P. Babarczi
    • P. Revisnyei
    • J. Tapolcai
    • J. Rak

    - IEEE Access - Year 2021

    This paper focuses on how to increase the availability of a backbone network with minimal cost. In particular, the new framework focuses on resilience against natural disasters and is an evolution of the FRADIR/FRADIR-II framework. It targets three different directions, namely: network planning, failure modeling, and survivable routing. The steady state network planning is tackled by upgrading a sub-network (a set of links termed...

    Full text available to download

  • Fundamentals of Communication Networks Resilience to Disasters and Massive Disruptions

    Publication
    • J. Rak
    • D. Hutchison
    • J. Tapolcai
    • R. Bruzgiene
    • M. Tornatore
    • C. Mas-Machuca
    • M. Furdek
    • P. Smith

    - Year 2020

    Communication networks are exposed to a variety of massive failure events following from activities of nature, weather-induced disruptions, technology-implied problems, and malicious human activities. In this chapter, we first highlight the characteristics of these scenarios and discuss example failure events reported during the last three decades. Next, we explain the concept of network resilience and present an overview of major...

    Full text to download in external service

  • RNDM 2016 Workshop and 2nd Meeting of COST CA15127-RECODIS: Highlights from the Resilience Week in Halmstad, Sweden

    Publication
    • M. Jonsson
    • J. Rak
    • D. Papadimitriou
    • A. Somani

    - IEEE COMMUNICATIONS MAGAZINE - Year 2017

    Leading network resilience researchers took part in the Resilience Week on Sept. 12-15, 2016 at Halmstad University, SE by Prof. Magnus Jonsson from the Centre for Research on Embedded Systems (CERES), Halmstad University, SE, and Prof. Jacek Rak from Gdansk University of Technology, PL. It included two major events: - The 2nd Meeting of COST CA15127–RECODIS Action (Resilient Communication Services Protecting End-user Applications...

    Full text to download in external service

  • Disaster-resilient communication networks: Principles and best practices

    Publication
    • A. Mauthe
    • D. Hutchison
    • E. Cetinkaya
    • I. Ganchev
    • J. Rak
    • J. P. Sterbenz
    • M. Gunkelk
    • P. Smith
    • T. Gomes

    - Year 2016

    Communication network failures that are caused by disasters, such as hurricanes, arthquakes and cyber-attacks, can have significant economic and societal impact. To address this problem, the research community has been investigating approaches to network resilience for several years. However, aside from well-established techniques, many of these solutions have not found their way into operational...

    Full text to download in external service

  • Disaster Resilience of Optical Networks: State of the Art, Challenges, and Opportunities

    Publication
    • J. Rak
    • R. Girão-Silva
    • T. Gomes
    • G. Ellinas
    • B. Kantarci
    • M. Tornatore

    - Optical Switching and Networking - Year 2021

    For several decades, optical networks, due to their high capacity and long-distance transmission range, have been used as the major communication technology to serve network traffic, especially in the core and metro segments of communication networks. Unfortunately, our society has often experienced how the correct functioning of these critical infrastructures can be substantially hindered by massive failures triggered by natural...

    Full text available to download

  • Maximizing SDN resilience to node‐targeted attacks through joint optimization of the primary and backup controllers placements

    Publication
    • M. Pióro
    • M. Mycek
    • A. Tomaszewski
    • A. de Sousa

    - NETWORKS - Year 2024

    In Software Defined Networks (SDN) packet data switches are configured by a limited number of SDN controllers, which respond to queries for packet forwarding decisions from the switches. To enable optimal control of switches in real time the placement of controllers at network nodes must guarantee that the controller-to-controller and switch-to-controller communications delays are bounded. Apart from the primary controllers that...

    Full text to download in external service

  • Future research directions in design of reliable communication systems

    Publication
    • J. Rak
    • M. Pickavet
    • K. S. Trivedi
    • J. A. Lopez
    • A. M. C. A. Koster
    • J. P. Sterbenz
    • E. Çetinkaya
    • T. Gomes
    • M. Gunkel
    • K. Walkowiak
    • D. Staessens

    - TELECOMMUNICATION SYSTEMS - Year 2015

    In this position paper on reliable networks, we discuss new trends in the design of reliable communication systems. We focus on a wide range of research directions including protection against software failures as well as failures of communication systems equipment. In particular, we outline future research trends in software failure mitigation, reliability of wireless communications, robust optimization and network design, multilevel...

    Full text available to download

  • Improving the Survivability of Carrier Networks to Large-Scale Disasters

    Publication
    • A. de Sousa
    • J. Rak
    • F. Barbosa
    • D. Santos
    • D. Mehta

    - Year 2020

    This chapter is dedicated to the description of methods aiming to improve the survivability of carrier networks to large-scale disasters. First, a disaster classification and associated risk analysis is described, and the disaster-aware submarine fibre-optic cable deployment is addressed aiming to minimize the expected costs in case of natural disasters. Then, the chapter addresses the improvement of the network connectivity resilience...

    Full text to download in external service

  • Enhancing Availability for Critical Services

    Publication
    • T. Gomes
    • L. Martins
    • R. Girão-Silva
    • D. Tipper
    • A. Pašić
    • B. Vass
    • L. Garrote
    • U. J. Nunes
    • M. Zachariasen
    • J. Rak

    - Year 2020

    Traditional approaches to provide classes of resilient service take the physical network availability as an input and then deploy redundancy and restoration techniques at various layers, often without full knowledge of mappings between layers. This makes it hard (and often inefficient) to ensure the high availability required by critical services which are typically a small fraction of the total traffic. Here, the innovative technique...

    Full text to download in external service

  • A METHOD OF TRUST MANAGEMENT IN WIRELESS SENSOR NETWORKS

    The research problem considered in this paper is how to protect wireless sensor networks (WSN) against cyber-threats by applying trust management and how to strengthen network resilience to attacks targeting the trust management mechanism itself. A new method, called WSN Cooperative Trust Management Method (WCT2M), of distributed trust management in multi-layer wireless sensor networks is proposed and its performance is evaluated....

    Full text to download in external service

  • Service-based Resilience via Shared Protection in Mission-critical Embedded Networks

    Publication

    - IEEE Transactions on Network and Service Management - Year 2021

    Mission-critical networks, which for example can be found in autonomous cars and avionics, are complex systems with a multitude of interconnected embedded nodes and various service demands. Their resilience against failures and attacks is a crucial property and has to be already considered in their design phase. In this paper, we introduce a novel approach for optimal joint service allocation and routing, leveraging virtualized...

    Full text available to download

  • Protection in elastic optical networks

    Publication
    • R. Goścień
    • K. Walkowiak
    • M. Klinkowski
    • J. Rak

    - IEEE NETWORK - Year 2015

    In this article, we analyze gains resulting from the use of EON architectures with special focus on transportation of cloud-ready and content-oriented traffic in the context of network resilience. EONs are a promising approach for future optical transport networks and, apart from improving the network spectral efficiency, bring such new capabilities as squeezed protection, which reduces resource requirements in failure scenarios....

    Full text to download in external service

  • A survey of strategies for communication networks to protect against large-scale natural disasters

    Publication
    • T. Gomes
    • J. Tapolcai
    • C. Esposito
    • D. Hutchison
    • F. Kuipers
    • J. Rak
    • D. Amaro
    • A. Iossifides
    • R. Travanca
    • J. Andre... and 8 others

    - Year 2016

    Recent natural disasters have revealed that emergency networks presently cannot disseminate the necessary disaster information, making it difficult to deploy and coordinate relief operations. These disasters have reinforced the knowledge that telecommunication networks constitute a critical infrastructure of our society, and the urgency in establishing protection mechanisms against disaster-based disruptions. Hence, it is important...

    Full text to download in external service

  • A taxonomy of challenges to resilient message dissemination in VANETs

    Publication

    - Year 2016

    Inter-vehicular communications is seen as a promising solution to a number of issues related with public road safety, road congestion management, and infotainment. However, Vehicular Ad-hoc NETworks (VANETs) characterized by high mobility of vehicles and facing a number of other issues related with high frequency wireless communications and network disconnections, encounter major challenges related with reliability of message delivery....

    Full text to download in external service

  • Optimization of Wireless Networks for Resilience to Adverse Weather Conditions

    Publication
    • M. Pióro
    • E. Fitzgerald
    • I. Kalesnikau
    • D. Nace
    • J. Rak

    - Year 2020

    In this chapter, we consider how adverse weather conditions such as rain or fog affect the performance of wireless networks, and how to optimize these networks so as to make them robust to these conditions. We first show how to analyze the weather conditions in order to make them useful for network optimization modelling. Using an example realistic network, we show how to optimize two types of wireless networks: free-space optical...

    Full text to download in external service

  • Enhancing Resilience of FSO Networks to Adverse Weather Conditions

    Publication

    - IEEE Access - Year 2021

    Optical wireless networks realized by means of gigabit optical wireless communication (OWC) systems are becoming, in a variety of applications, an important alternative, or a complementary solution, to their fiber-based counterparts. However, performance of the OWC systems can be considerably degraded in periods of unfavorable weather conditions, such as heavy fog, which temporarily reduce the effective capacity of the network....

    Full text available to download

  • On the Importance of Resilience Engineering for Networked Systems in a Changing World

    Publication
    • D. Hutchison
    • D. Pezaros
    • J. Rak
    • P. Smith

    - IEEE COMMUNICATIONS MAGAZINE - Year 2023

    Resilience is featured increasingly often in the media, usually applied to society when faced, for example, with disasters such as flooding and the enormous challenges that the Covid-19 pandemic posed. There are now many resilience-related discussion groups worldwide, and some standards initiatives devoted in particular to city resilience. However, there is relatively little explicit interest in resilience engineering for communication...

    Full text available to download

  • Developing Polycentricity to Shape Resilient Metropolitan Structures: The Case of the Gdansk–Gdynia–Sopot Metropolitan Area

    Publication

    Making the metropolitan area resilient, in many cases, calls for amending its spatial structures. This may take various forms, including both reshaping the metropolitan core and redeveloping the entire regional network of cities and centres, making them part of a coherent structure. The latter strategy is associated with reinforcing secondary urban centres as well as shaping new connections between them. In this case, the term...

    Full text available to download

  • A novel genetic approach to provide differentiated levels of service resilience in IP-MPLS/WDM networks

    This paper introduces a novel class-based method of survivable routing for connection-oriented IP-MPLS/WDM networks, called MLS-GEN-H. The algorithm is designed to provide differentiated levels of service survivability in order to respond to varying requirements of end-users. It divides the complex problem of survivable routing in IP-MPLS/WDM networks into two subproblems, one for each network layer, which enables finding the...

    Full text to download in external service

  • Resilience and Security in Software Defined Networking

    Publication
    • C. Mas Machuca
    • P. Vizarreta
    • R. Durner
    • J. Rak

    - Year 2018

    This paper gives an overview of the most important issues on resilience and security in Software Defined Networking

    Full text to download in external service

  • The effect of environmental turbulence on cyber security risk management and organizational resilience

    Publication

    - COMPUTERS & SECURITY - Year 2024

    Even though there is a plethora of research on the role of environmental turbulence in organizational performance in general, little attention has been paid to the effect of environmental turbulence on cyber security risk management and further - organizational resilience. Drawing on the resource-based view and contingency theory, this study investigates how technological and market turbulence influence organizational cyber security...

    Full text available to download

  • Striving for spatial energy efficiency in dwelling complexes. Kształtowanie przestrzennej efektywności energetycznej w zespołach zabudowy mieszkaniowej.

    The main aim of this article was to discover the key characteristics in shaping most rewarded eco- district complexes built respectively in temperate climate zone in respect to spatial energy efficiency and resilience principles. It was done through careful case studies, comparative analysis and juxtaposition of critical parameters related to spatial energy efficiency and resilience in chosen representative dwelling complexes....

    Full text available to download

  • Effect of kenaf fibre modification on morphology and mechanical properties of thermoplastic polyurethane materials

    The presented study examined the morphology and mechanical properties of biocomposites obtained from kenaf natural fibre and thermoplastic polyurethane. Kenaf was modified using various methods, namely: acetylation, blocked isocyanate, maleic anhydride and permanganate treatment. Those methods and ways of carrying out of surface modifications were not studied before on kenaf/thermoplastic polyurethane composites. Different fibre...

    Full text available to download

  • Organizational Resilience in Hospitality and Tourism

    Publication
    • M. Rozkwitalska-Welenc
    • J. Borzyszkowski,
    • B. Basińska
    • F. Okumus
    • O. M. Karatepe

    - Year 2024

    Although ‘VUCA’ is not a new term, the features of the world it describes, a volatile, uncertain, complex and ambiguous environment, have never been more valid. The VUCA world has become the new reality for business, specifically for hospitality and tourism organizations that are more vulnerable than any other sector due to the historically-recognized turbulent environment in which they operate. In this book, the authors present...

    Full text to download in external service

  • City scan as a tool to assess resilience challenges and vulnerabilities at the community level

    Publication

    - Year 2021

    The majority of the world’s population lives in cities and cities are the key to achieving resilience. Local governments own only part of the land and can only partially decide about measures that should be taken ‘on the ground’. Local governments are therefore highly dependent on individuals, communities, and businesses to adapt and transform and take action in their own backyards or neighbourhoods. Since, for many people, climate...

    Full text to download in external service

  • Emotional distress, burnout and sense of safety during the COVID-19 pandemic in teachers after the reopening of schools

    Publication
    • D. Pankowski
    • E. Pisula
    • K. Wytrychiewicz-Pankowska
    • I. Nowakowska
    • A. Banasiak
    • M. Markiewicz
    • A. Jórczak-Kopeć

    - Advances in Cognitive Psychology - Year 2023

    The COVID-19 pandemic is having a significant impact on people's psychological well-being and mental health. This study aimed to identify factors linked to emotional distress, burnout and sense of safety in teachers related to the reopening of Polish schools after lockdown, remote work, and the holiday period between March and August 2020. A total of 1,286 teachers from different educational institutions participated in the...

  • Should Polish banks be domesticated?

    Publication

    - Year 2013

    The financial crisis revealed vulnerabilities in the regulation and supervision of the banking system. The overarching goal of the proposal (Bazylea III and CRD IV) is to strengthen the resilience of the EU banking sector. The effects of these regulations will be detrimental to the Polish banking system and economy. This follows from the fact that listed banks in Poland are subsidiaries of international banking groups. The article...

  • Evaluating Security and Resilience of Critical Networked Infrastructures after Stuxnet

    Publication

    - Year 2013

    The chapter presents the current configuration of the simulation environment for the evaluations of the security and resilience of critical networked infrastructures, which enables simulations of Stuxnet-like attacks. The configuration includes new features added to the MAlSim - Mobile Agent Malware Simulator after the advent of Stuxnet in reference to the experiments aiming at the security evaluation of a power plant which we...

    Full text to download in external service

  • Rotational Molding of Linear Low-Density Polyethylene Composites Filled with Wheat Bran

    Publication

    - Polymers - Year 2020

    Application of lignocellulosic fillers in the manufacturing of wood polymer composites (WPCs) is a very popular trend of research, however it is still rarely observed in the case of rotational molding. The present study aimed to analyze the impact of wheat bran content (from 2.5 wt.% to 20 wt.%) on the performance of rotationally-molded composites based on a linear low-density polyethylene (LLDPE) matrix. Microscopic structure...

    Full text available to download

  • A study on fibre-reinforced concrete elements properties based on the case of habitat modules in the underwater sills

    Hydrotechnical constructions are mostly objects functioning in extreme conditions and requiring a custom-made construction project. In the case of using prefabricated elements, it is required to develop production, transport, assembly, conservation and repair technology. Concerning the problem of concrete cracks, modern repair systems allow positive effects to be achieved in many cases of concrete elements repair. In this work...

    Full text available to download

  • Mechanical and thermo-mechanical properties of natural rubber composites filled with submicron- and nano-sized silica particles and prepared using glycolysate as a plasticizer

    Publication

    The main aim of this work was to examine the selected mechanical and thermo-mechanical properties of natural rubber/silica composites prepared using glycolysate as a plasticizer. Prepared composites contained different amounts of submicron- (10, 15, 20 or 25 pphr) or nano-particles (0.5, 0.75, 1.0 or 1.25 pphr). The tensile properties, tear resistance, hardness, abrasion resistance and resilience of prepared materials were determined....

    Full text to download in external service

  • Design of Resilient Vehicle-to-Infrastructure Systems

    Publication

    - Year 2020

    Vehicular ad hoc networks (VANETs) have recently gained noticeable attention due to advantages in improving road traffic safety, shaping the road traffic and providing infotainment opportunities to travellers. However, transmission characteristics following from the IEEE 802.11p standard and the high mobility of VANET nodes remarkably reduce the lifetime, reach and capacity of wireless links, and often lead to simultaneous disruptions...

    Full text to download in external service

  • Assessment of Alterations in Settlement Patterns of Agricultural Landscape in the Example of Kashubia in Poland

    Publication

    - Sustainability - Year 2024

    Traditional agricultural landscapes are heavily exposed to change due to their relatively low agricultural productivity. However, they represent cultural values of great importance in maintaining the resilience of the environment and society. Although their cultural potential is important for sustainable development, it is still insufficiently recognized. The article fills this gap by examining old farmstead buildings as a distinguishing...

    Full text available to download

  • How non-technological innovation saved the day by using ICT

    Publication

    - Year 2022

    Certainly, the current pandemic situation provides a lot of evidence of the need for non-technological innovations, both in the area of company organization and marketing. Socio-cultural innovations are not less important. Therefore, the role of non-technological innovation during the COVID-19 pandemic is discussed in the sixth chapter. Innovations supported by digital solutions have become a silent heroes for many companies as...

    Full text to download in external service

  • Morphology and properties of recycled polyethylene/ground tyre rubber/thermoplastic poly(ester-urethane) blends

    Publication

    The growing amount of plastics waste produced every year resulted in development of mechanical and chemical recycling methods of polymers and their blends or composites. From the environmental point of view, the possibility of plastics waste reusing and recycling is desirable. In this study three polymer blends were obtained with using recycled polyethylene (RPE), ground tyre rubber (GTR) and thermoplastic poly(ester-urethane)...

    Full text to download in external service

  • Simulation of Direct-Sequence Spread Spectrum Data Transmission System for Reliable Underwater Acoustic Communications

    Underwater acoustic communication (UAC) system designers tend to transmit as much information as possible, per unit of time, at as low as possible error rate. It is a particularly difficult task in a shallow underwater channel in which the signal suffers from strong time dispersion due to multipath propagation and refraction phenomena. The direct-sequence spread spectrum technique (DSSS) applied successfully in the latest standards...

    Full text available to download

  • Adapting education to a changing climate: preparing architecture students for climate-resilient design

    In this article, the authors explore the connection between climate change and the fields of architecture and urban planning. With the increasing frequency of flooding and extreme weather events, the built environment is confronting challenges in terms of sustainability and resilience. To meet these problems, it is necessary to prepare various specialists to assume responsibility for making future decisions. The authors of this...

    Full text available to download

  • Thermodynamic Cycle Concepts for High-Efficiency Power Plans. Part A: Public Power Plants 60+

    Publication

    - Sustainability - Year 2019

    An analysis was carried out for different thermodynamic cycles of power plants with air turbines. Variants with regeneration and different cogeneration systems were considered. In the paper, we propose a new modification of a gas turbine cycle with the combustion chamber at the turbine outlet. A special air by-pass system of the combustor was applied and, in this way, the efficiency of the turbine cycle was increased by a few points....

    Full text available to download

  • Insights into Compatibilization of Poly(ε-caprolactone)-based Biocomposites with Diisocyanates as Modifiers of Cellulose Fillers

    This study aimed to analyze the impact of cellulose fillers’ modification with diisocyanates on the performance of composites based on the poly(ε-caprolactone) (PCL) matrix. Four most commonly used diisocyantes (isophorone, hexamethylene, toluene, and methylene diphenyl) were applied as modifiers of cellulose fillers (5 and 15 wt% per mass of filler). Modified fillers were introduced in the amount of 30 wt% into the PCL matrix....

    Full text available to download

  • Efficient removal of 2,4,6-trinitrotoluene (TNT) from industrial/military wastewater using anodic oxidation on boron-doped diamond electrodes

    Publication

    - Scientific Reports - Year 2024

    With growing public concern about water quality particular focus should be placed on organic micropollutants, which are harmful to the environment and people. Hence, the objective of this research is to enhance the security and resilience of water resources by developing an efficient system for reclaiming industrial/military wastewater and protecting recipients from the toxic and cancerogenic explosive compound – 2,4,6-trinitrotoluene...

    Full text available to download

  • ESG investing during the Covid-19 crisis. Evidence from Central European Stock Exchanges

    Publication

    - Year 2023

    As COVID-19 turned into a global pandemic, world markets gradually began to recover after initial dynamic declines. Restrictions, and their subsequent loosening, were, and are, not without significance for the financial markets. These particular circumstances provide a unique opportunity to contribute to the literature by focusing on the potential resilience of ESG (environmental, social and governance) investing in an era of crisis....

    Full text to download in external service

  • Styrene-Butadiene Rubber/Modified Ground Tire Rubber Blends Co-Vulcanization: Effect of Accelerator Type

    Publication

    Ground tire rubber was thermo-mechanically modified with using a co-rotating twin screw extruder. Modification of GTR was conducted in autothermal conditions. Styrene-butadiene rubber and modified ground tire rubber blends were prepared via two-roll milling. Obtained compounds were cured with conventional system (sulfur/vulcanization accelerator ratio was 2:1). During this research three commonly vulcanization accelerators (MBT,...

    Full text to download in external service

  • Organizational culture as prerequisite of proactive safety and security management in critical infrastructure systems including hazardous plants and ports

    This article addresses selected aspects of organizational culture to be considered in the context of knowledge based proactive safety and security management of plants, ports and systems of critical infrastructure. It has been often emphasized in the domain literature that business effectiveness of such plants and their resilience against hazards and threats to avoid major accidents depends substantially on human and organizational...

    Full text to download in external service