Template-Type: ReDIF-Article 1.0 Author-Name: Andrea Tortorelli Author-X-Name-First: Andrea Author-X-Name-Last: Tortorelli Author-Name: Andrea Fiaschetti Author-X-Name-First: Andrea Author-X-Name-Last: Fiaschetti Author-Name: Roberto Germanà Author-X-Name-First: Roberto Author-X-Name-Last: Germanà Author-Name: Alessandro Giuseppi Author-X-Name-First: Alessandro Author-X-Name-Last: Giuseppi Author-Name: Vincenzo Suraci Author-X-Name-First: Vincenzo Author-X-Name-Last: Suraci Author-Name: Andrea Andreani Author-X-Name-First: Andrea Author-X-Name-Last: Andreani Author-Name: Francesco Delli Priscoli Author-X-Name-First: Francesco Delli Author-X-Name-Last: Priscoli Title: A decision support tool for optimal configuration of critical infrastructures Abstract: In this work, a decision support system aimed at suggesting to critical infrastructure (CI) operators the optimal configuration in terms of deployed security functions Ali ties is presented. Two specific problems have been addressed: the security evaluation problem and the security configuration computation problem. Concerning the former problem, the framework provided by the Open Source Security Testing Methodology Manual (OSSTMM) has been retained and extended to capture innovative security features providing CI operators with a holistic insight on the system security level. Concerning the latter problem, the DSS has been provided with an optimisation framework based on a genetic algorithm (GA) for exploring the solution space; in this respect, three different implementations of the adopted GA have been developed and evaluated in realistic operation scenarios. Finally, the outputs of the DSS have been validated from a security point of view. Journal: Int. J. of Critical Infrastructures Pages: 105-127 Issue: 2 Volume: 18 Year: 2022 Keywords: critical infrastructures; cyber-physical security; decision support systems; DSSs; genetic algorithms. File-URL: http://www.inderscience.com/link.php?id=123415 File-Format: text/html File-Restriction: Access to full text is restricted to subscribers. Handle: RePEc:ids:ijcist:v:18:y:2022:i:2:p:105-127 Template-Type: ReDIF-Article 1.0 Author-Name: Sunil Gupta Author-X-Name-First: Sunil Author-X-Name-Last: Gupta Author-Name: Durgansh Sharma Author-X-Name-First: Durgansh Author-X-Name-Last: Sharma Title: Prediction of COVID-19 spread in world using pandemic dataset with application of auto ARIMA and SIR models Abstract: COVID-19 has now become the world's highly infectious disease because of the high transmission capability of the coronavirus. This virus has also deeply impacted the global economy. The world situation needs better predication analysis for prevention and decision making. Since then, researchers all over the world are making attempts to predict the likely progression of this pandemic using various mathematical models. The aim of this analysis is to use auto ARIMA model to predict the spread of coronavirus in the world in the next 100 days. We also determine when new confirmed cases, death cases and recovery of COVID-19 would stabilise in top five of the most affected countries. The results obtained from auto ARIMA are then compared with those obtained by applying susceptible infected removed (SIR) model. The comparison of the analytical results and the available results shows that the proposed methods are accurate within a specific range and will prove to be useful for healthcare leaders and decision-makers in near future. The forecasted results suggest the strong need of prevention and environmental measures to be taken rapidly in order to fight with COVID-19. Journal: Int. J. of Critical Infrastructures Pages: 148-158 Issue: 2 Volume: 18 Year: 2022 Keywords: COVID-19; prediction; auto ARIMA; SIR model. File-URL: http://www.inderscience.com/link.php?id=123419 File-Format: text/html File-Restriction: Access to full text is restricted to subscribers. Handle: RePEc:ids:ijcist:v:18:y:2022:i:2:p:148-158 Template-Type: ReDIF-Article 1.0 Author-Name: Hongyu Deng Author-X-Name-First: Hongyu Author-X-Name-Last: Deng Author-Name: Zhonghao Zhang Author-X-Name-First: Zhonghao Author-X-Name-Last: Zhang Author-Name: Qiang Zhou Author-X-Name-First: Qiang Author-X-Name-Last: Zhou Author-Name: Baitao Sun Author-X-Name-First: Baitao Author-X-Name-Last: Sun Author-Name: Peiyu Ying Author-X-Name-First: Peiyu Author-X-Name-Last: Ying Author-Name: Canbin Yin Author-X-Name-First: Canbin Author-X-Name-Last: Yin Title: Study on the seismic behaviour of upper masonry floor with variable stiffness for multi-story brick structures with bottom-frame based on finite element simulation Abstract: The upper masonry layers of multi-story brick structures with bottom-frame were usually severely destroyed in an actual earthquake. But, it is not clear that whether the design method of equal rigidity in vertical direction of upper masonry layer is reasonable. In this paper, four contrastive models of bottom frame structures were established though ABAQUS, and the different design methods of variable vertical stiffness were used for the upper masonry layers. The seismic response results show that the upper masonry layers especially the transitional layer is severely damaged when the design method of equal rigidity in vertical direction is used. According to the principle that the stiffness of the floor in proportion to its seismic force, which can lead to uniform failure of each layer, when the upper masonry layer uses the design method of variable stiffness along vertical direction, the seismic performance of the whole structure is greatly improved. Journal: Int. J. of Critical Infrastructures Pages: 128-147 Issue: 2 Volume: 18 Year: 2022 Keywords: bottom frame structure; variable vertical stiffness; elastic-plastic time-history analysis; seismic behaviour. File-URL: http://www.inderscience.com/link.php?id=123421 File-Format: text/html File-Restriction: Access to full text is restricted to subscribers. Handle: RePEc:ids:ijcist:v:18:y:2022:i:2:p:128-147 Template-Type: ReDIF-Article 1.0 Author-Name: Farham Shahrivar Author-X-Name-First: Farham Author-X-Name-Last: Shahrivar Author-Name: Mojtaba Mahmoodian Author-X-Name-First: Mojtaba Author-X-Name-Last: Mahmoodian Author-Name: Chun Qing Li Author-X-Name-First: Chun Qing Author-X-Name-Last: Li Title: Comparative analysis of fuzzy multi-criteria decision-making methods in maintenance prioritisation of infrastructure assets Abstract: The maintenance prioritisation of infrastructure assets is conventionally evaluated by calculating the risk an asset can pose to the owner organisation in terms of agreed criteria. Multi-criteria decision-making (MCDM) methods are utilised to prioritise asset maintenance. Using fuzzy theory, which is developed to deal with vagueness in human thinking, is believed to release more accurate criteria weights and consequently alternative performance values in a qualitative multi-criteria decision-making evaluation. This paper presents an empirical application and comparison of four compensatory MCDM methods including technique for order of preference by similarity to ideal solution (TOPSIS), complex proportional assessment (COPRAS), weighted sum model (WSM), and weighted product model (WPM) in a fuzzy environment to prioritise irrigation asset maintenance. Analytical hierarchy process (AHP) method is used, also in a fuzzy environment, to obtain the criteria weights. Seven evaluation criteria and six irrigation channels from different areas in Northern Victoria, Australia, are considered as the case study data. Results of the MCDM methods are analysed and their reliability, simplicity, and applicability with pros and cons are evaluated. Finally, the most straightforward and at the same time reliable method for similar practical applications is suggested. Journal: Int. J. of Critical Infrastructures Pages: 172-195 Issue: 2 Volume: 18 Year: 2022 Keywords: infrastructure maintenance prioritisation; multi-criteria decision-making; MCDM methods; analytical hierarchy process; AHP; weighted sum model; WSM; weighted product model; WPM; complex proportional assessment; COPRAS; TOPSIS; fuzzy theory. File-URL: http://www.inderscience.com/link.php?id=123422 File-Format: text/html File-Restriction: Access to full text is restricted to subscribers. Handle: RePEc:ids:ijcist:v:18:y:2022:i:2:p:172-195 Template-Type: ReDIF-Article 1.0 Author-Name: Rong Deng Author-X-Name-First: Rong Author-X-Name-Last: Deng Author-Name: Lei Zhou Author-X-Name-First: Lei Author-X-Name-Last: Zhou Title: Optimising the supporting structure of a bridge's foundation pit based on hybrid neural network Abstract: Aiming at the problem of large settlement of nearby buildings caused by displacement deformation of supporting structure of a bridge foundation pit, an optimisation design method of supporting structure of a bridge foundation pit based on hybrid neural network is proposed. The structure model of hybrid neural network is setup and the variables are inputted. The minimum deformation prediction results of the bridge foundation pit support structure are obtained through training. The earth pressure value is calculated. The minimum soil depth and pile length of the supporting pile are calculated to complete the optimisation of the supporting structure of the bridge foundation pit. The actual engineering test shows that the average values of vertical displacement, horizontal displacement and peripheral settlement of the proposed method are 6 cm, 15 cm and 13 cm respectively, which are all within the allowable range, which can effectively guarantee the safety of excavation and support of foundation pit engineering. Journal: Int. J. of Critical Infrastructures Pages: 159-171 Issue: 2 Volume: 18 Year: 2022 Keywords: hybrid neural network; bridge; supporting structure of foundation pit; optimal design. File-URL: http://www.inderscience.com/link.php?id=123448 File-Format: text/html File-Restriction: Access to full text is restricted to subscribers. Handle: RePEc:ids:ijcist:v:18:y:2022:i:2:p:159-171 Template-Type: ReDIF-Article 1.0 Author-Name: De-biao Zhao Author-X-Name-First: De-biao Author-X-Name-Last: Zhao Author-Name: Yong-yan Wang Author-X-Name-First: Yong-yan Author-X-Name-Last: Wang Title: Research on 3D finite element simulation model of aluminium beam with lamination defects based on 2D Fourier transform Abstract: In order to solve the problems of low detection accuracy and poor modelling effect when building the laminated defect aluminium beam model, a 3D finite element simulation model of laminated defect aluminium beam based on 2D Fourier transform is proposed. The two-dimensional Fourier transform method was used to obtain the full wave field signal and spatial position wave number curve of aluminium beam structure. The three-dimensional point cloud image was generated by MATLAB software, and the solid model of aluminium beam with delamination defect was established. The three-dimensional finite element simulation model of aluminium beam with laminated defects was obtained by introducing it into the worktable. The experimental results show that the accuracy of the method is 98.91%, the average texture number and frame rate are 17.105 ms and 95.507 frames/second, respectively. It has a good effect on the establishment of 3D finite element simulation model of aluminium beam. Journal: Int. J. of Critical Infrastructures Pages: 1-13 Issue: 1 Volume: 18 Year: 2022 Keywords: 3D finite element; simulation model; lamination defect; aluminium beam; 3D point cloud map; 3D image boundary contour. File-URL: http://www.inderscience.com/link.php?id=120669 File-Format: text/html File-Restriction: Access to full text is restricted to subscribers. Handle: RePEc:ids:ijcist:v:18:y:2022:i:1:p:1-13 Template-Type: ReDIF-Article 1.0 Author-Name: Hongwei Ren Author-X-Name-First: Hongwei Author-X-Name-Last: Ren Author-Name: Jianwei Chen Author-X-Name-First: Jianwei Author-X-Name-Last: Chen Title: The application of BIM technology in the research on seismic performance of shear wall structure of prefabricated residential buildings Abstract: In order to overcome the problem that the seismic analysis of shear wall is not comprehensive enough and the method efficiency is low, this paper proposes a new method to study the seismic performance of prefabricated shear wall structure. This method selects the technical problems in the construction process of a project for detailed analysis, including the construction process of shear wall structure of prefabricated residential buildings, vertical components and other processes. At the same time, BIM technology is applied to the prefabricated residential buildings, and Tekla software is used to model the project, and the model is imported into Naviswork for the simulation analysis of four-dimensional construction. The experimental results show that, in the longitudinal seismic resistance test, the wall side of specimens PW1 and PW2 moved within 20 mm, and the maximum bearing capacity of the wall was about 320 KN. In the horizontal seismic resistance test, the maximum lateral displacement value of specimens PW3 and PW4 was 30mm. The two specimens in the same group obtained the same data, which verified the feasibility of the proposed method. Journal: Int. J. of Critical Infrastructures Pages: 32-44 Issue: 1 Volume: 18 Year: 2022 Keywords: BIM technology; prefabricated residential building; shear wall structure; seismic performance. File-URL: http://www.inderscience.com/link.php?id=120671 File-Format: text/html File-Restriction: Access to full text is restricted to subscribers. Handle: RePEc:ids:ijcist:v:18:y:2022:i:1:p:32-44 Template-Type: ReDIF-Article 1.0 Author-Name: Daohong Lin Author-X-Name-First: Daohong Author-X-Name-Last: Lin Author-Name: Hongyan Liu Author-X-Name-First: Hongyan Author-X-Name-Last: Liu Author-Name: Xinshu Wan Author-X-Name-First: Xinshu Author-X-Name-Last: Wan Author-Name: Wangcheng Zhu Author-X-Name-First: Wangcheng Author-X-Name-Last: Zhu Author-Name: Qiang Wu Author-X-Name-First: Qiang Author-X-Name-Last: Wu Author-Name: YanJing Wang Author-X-Name-First: YanJing Author-X-Name-Last: Wang Title: Research on fault location method for low-voltage active distribution network based on correlation of main frequency components Abstract: In order to solve the problems of poor fault tolerance and low fault identification rate, a fault location method based on the correlation of main frequency components is proposed. Based on the distribution network of main frequency components extracted by Prony algorithm, this paper introduces the fault location model of low-voltage active distribution network built by hierarchical algorithm, and realises the correlation of main frequency components based on the research of fault location method of low-voltage active distribution network based on intelligent algorithm. The experimental results show that the fault tolerance rate of the proposed method based on the correlation of main frequency components is over 76% and the fault recognition rate is over 60%, which appears to be higher than several other methods. It is consequently believed that the proposed method may stand a good chance to offer better fault location performance. Journal: Int. J. of Critical Infrastructures Pages: 14-31 Issue: 1 Volume: 18 Year: 2022 Keywords: main frequency components; correlation; low-voltage active power; distribution network; fault; location. File-URL: http://www.inderscience.com/link.php?id=120674 File-Format: text/html File-Restriction: Access to full text is restricted to subscribers. Handle: RePEc:ids:ijcist:v:18:y:2022:i:1:p:14-31 Template-Type: ReDIF-Article 1.0 Author-Name: Uche M. Mbanaso Author-X-Name-First: Uche M. Author-X-Name-Last: Mbanaso Author-Name: Victor Emmanuel Kulugh Author-X-Name-First: Victor Emmanuel Author-X-Name-Last: Kulugh Author-Name: Habiba Musa Author-X-Name-First: Habiba Author-X-Name-Last: Musa Author-Name: Gilbert I.O. Aimufua Author-X-Name-First: Gilbert I.O. Author-X-Name-Last: Aimufua Author-Name: Emmanuel S. Dandaura Author-X-Name-First: Emmanuel S. Author-X-Name-Last: Dandaura Title: Quantitative assessment of critical infrastructures degree of dependency on information and communications technology Abstract: This paper presents a computational model for the quantification of critical infrastructure (CI) degree of dependency on ICT. Traditional CIs that support modern society in providing uninterruptable vital services are increasingly ICT dependent. To build the needed bulwark against cyber threats, there is the need to assess their dependency on ICT since ICT infrastructure comes with vulnerabilities that amplify cyber risk. Consequently, the proposed computational model for the quantification of CI degree of dependency on ICT is a function of ICT metrics and indicators based on mathematical constructs. The outcome is ICT dependency index (IDI), and ICT dependency quadrant (IDQ), which compare, rank, and visualise the IDI of sectors and organisations. The findings show that no one sector can be chosen arbitrarily as the most critical ICT dependent. The model is particularly useful for developing countries to uniformly assess CI's degree of dependency on ICT as opposed to uninformed valuation. Journal: Int. J. of Critical Infrastructures Pages: 45-62 Issue: 1 Volume: 18 Year: 2022 Keywords: critical infrastructure; critical systems; critical national information infrastructure; ICT dependency. File-URL: http://www.inderscience.com/link.php?id=120677 File-Format: text/html File-Restriction: Access to full text is restricted to subscribers. Handle: RePEc:ids:ijcist:v:18:y:2022:i:1:p:45-62 Template-Type: ReDIF-Article 1.0 Author-Name: Beatriz Toscano Author-X-Name-First: Beatriz Author-X-Name-Last: Toscano Author-Name: André Diegues Fernandes Author-X-Name-First: André Diegues Author-X-Name-Last: Fernandes Author-Name: Miguel Mira Da Silva Author-X-Name-First: Miguel Mira Da Author-X-Name-Last: Silva Author-Name: Flávia Maria Santoro Author-X-Name-First: Flávia Maria Author-X-Name-Last: Santoro Title: A domain ontology on cascading effects in critical infrastructures based on a systematic literature review Abstract: Critical infrastructures (CIs) are crucial assets for society and the economy, as they are responsible for providing essential goods and services. The interdependence between CIs makes them vulnerable to large-scale cascading disasters that can significantly impact society. Cascading effects in CIs are thus a worthy area of study and research, with considerable interests in terms of resilience and risk management. In this paper, a domain ontology of cascading effects was developed using the systematic approach to ontology construction (SaBiO) methodology, which provides guidelines for developing domain ontologies. A systematic literature review (SLR) was used to obtain information, an essential part of the first phase of SaBiO. This research identified the main concepts in the domain of cascading effects. Additionally, the relations between the concepts were also identified, which were formalised in the proposed ontology. Besides the proposed ontology, a small analysis of the domain of the cascading effects was also performed. The ontology proposed was also validated using real cases of cascading effects events from an organisation. Journal: Int. J. of Critical Infrastructures Pages: 79-103 Issue: 1 Volume: 18 Year: 2022 Keywords: systematic literature review; interdependencies; ontology; critical infrastructures; SaBiO; cascading effects. File-URL: http://www.inderscience.com/link.php?id=120679 File-Format: text/html File-Restriction: Open Access Handle: RePEc:ids:ijcist:v:18:y:2022:i:1:p:79-103 Template-Type: ReDIF-Article 1.0 Author-Name: Yanyan Fan Author-X-Name-First: Yanyan Author-X-Name-Last: Fan Author-Name: Jianglong Li Author-X-Name-First: Jianglong Author-X-Name-Last: Li Title: Comprehensive vulnerability evaluation of urban earthquake disaster based on RAGA-PPE Abstract: In view of the multi factor influence problem in the comprehensive vulnerability assessment of urban earthquake disasters combined with the complex internal characteristics of urban system based on the pressure state response model, the comprehensive vulnerability index system of urban earthquake disasters is constructed from seven aspects: natural factors, human factors, lifeline system, social status, economic status, engineering seismic capacity and recovery capacity. The urban vulnerability is evaluated by establishing the comprehensive vulnerability evaluation model of urban earthquake disaster, and the best projection direction of projection pursuit evaluation model is sought by using accelerated genetic algorithm. Combined with the evaluation index value, the projection characteristic index value of the evaluation sample is determined. Taking 12 cities in Gansu Province as an example, the comprehensive vulnerability state of cities is determined by the above model, and the main factors influencing the earthquake vulnerability of cities are analysed according to the results, which provides the basis for decision makers to make earthquake prevention and disaster reduction planning. Journal: Int. J. of Critical Infrastructures Pages: 63-78 Issue: 1 Volume: 18 Year: 2022 Keywords: pressure-state-response; PSR; real-coded accelerating genetic algorithm; projection pursuit evaluation model; urban earthquake disaster; comprehensive vulnerability. File-URL: http://www.inderscience.com/link.php?id=120680 File-Format: text/html File-Restriction: Access to full text is restricted to subscribers. Handle: RePEc:ids:ijcist:v:18:y:2022:i:1:p:63-78 Template-Type: ReDIF-Article 1.0 Author-Name: Sujata Gupta Author-X-Name-First: Sujata Author-X-Name-Last: Gupta Author-Name: Anupam Mital Author-X-Name-First: Anupam Author-X-Name-Last: Mital Title: A comparative study of ultimate bearing capacity of shallow rectangular footing subjected to eccentrically inclined loads Abstract: This study is presented for model tests conducted to calculate the ultimate bearing capacity (UBC) of eccentrically inclined loaded rectangular foundation on sand. Various parameters were investigated in this study included depth of embedment (<i>D<SUB align="right"><SMALL>f</SMALL></SUB></i> / <i>B</i>), eccentricity (<i>e</i> / <i>B</i>) and the angle of inclination of applied loads (<i>α</i>). In the present study, the reduction factor is calculated as the ratio of UBC of rectangular footing subjected to eccentric and inclined load at any embedment depth to the UBC of the same footing under similar conditions but subjected to axial centric load. The reduction factor was compared with those based on the previous bearing capacity studies in this area. This comparison appears to be reasonably well. Furthermore, numerical analysis on the prototype footing was directed using commercial finite element method-based software PLAXIS 3D to authenticate the test results. A very close agreement was found between experimental and numerical analysis. Journal: Int. J. of Critical Infrastructures Pages: 211-231 Issue: 3 Volume: 18 Year: 2022 Keywords: eccentric loading; load inclination; geogrid; rectangular footing; ultimate bearing capacity; UBC; reduction factor; PLAXIS 3D. File-URL: http://www.inderscience.com/link.php?id=125808 File-Format: text/html File-Restriction: Access to full text is restricted to subscribers. Handle: RePEc:ids:ijcist:v:18:y:2022:i:3:p:211-231 Template-Type: ReDIF-Article 1.0 Author-Name: Sunil Gupta Author-X-Name-First: Sunil Author-X-Name-Last: Gupta Author-Name: Akansha Bansiya Author-X-Name-First: Akansha Author-X-Name-Last: Bansiya Author-Name: Mansi Saini Author-X-Name-First: Mansi Author-X-Name-Last: Saini Author-Name: Amuleek Sidhu Author-X-Name-First: Amuleek Author-X-Name-Last: Sidhu Title: Secure access control for cloud-based tele medical system Abstract: Recent technological advancements are offering users new and easier ways to access healthcare services. With the advent of high-speed networks, low cost storage, inexpensive telecommunication systems, patient monitoring systems, cloud computing, telecare medical information system (TMIS) is becoming a reality. Due to the advantage of tele-healthcare medical system, we are reaching directly to the patients' home over internet or mobile networks and data is stored as electronic medical records (EMR). The major challenge here is ensuring secure access of communication data by patients and doctors, for this we need a secure and efficient way of user access control, so that attacker cannot impersonate the user or medical server. The confidentiality, integrity and availability need to be ensured. Also, the authentication process should be user friendly so that even elderly patients can use it easily. Medical data includes medical images which might be tampered by intruders. Our aim is to overcome the limitation of present market scenario and provide the efficient way of communication between user and doctor with help of cloud-based system. Journal: Int. J. of Critical Infrastructures Pages: 232-239 Issue: 3 Volume: 18 Year: 2022 Keywords: cloud computing; access control; telecare medical information system; TMIS. File-URL: http://www.inderscience.com/link.php?id=125811 File-Format: text/html File-Restriction: Access to full text is restricted to subscribers. Handle: RePEc:ids:ijcist:v:18:y:2022:i:3:p:232-239 Template-Type: ReDIF-Article 1.0 Author-Name: Ambrose Nnaemeka Omeje Author-X-Name-First: Ambrose Nnaemeka Author-X-Name-Last: Omeje Author-Name: Augustine Jideofor Mba Author-X-Name-First: Augustine Jideofor Author-X-Name-Last: Mba Author-Name: Michael Okike Ugwu Author-X-Name-First: Michael Okike Author-X-Name-Last: Ugwu Title: Electricity utilisation and firm efficiency in Nigeria: evidence from data envelopment analysis Abstract: Electricity consumption is a major factor that influence economic activities of firms. Epileptic electricity supply can reduce the ease of doing business for firms by raising production costs if they switch to alternative electricity supply. This study utilised Nigeria Enterprise Survey (2014) data and data envelopment analysis to find out if utilisation of electricity supply makes firms in Nigeria more efficient compared to when they utilise alternative electricity. It was found that electricity utilisation does not encourage firms in Nigeria to increase their efficiency levels under CRS due to the fact that there exist epileptic/erratic national grid electricity supply accompanied with low voltage whenever the supply is available. The study recommends that Nigerian government and its various agencies in power/electricity sector should strive more to provide constant electricity supply to the people and the firms, to encourage more economic productions that would spur economic growth and development of the country. Journal: Int. J. of Critical Infrastructures Pages: 240-266 Issue: 3 Volume: 18 Year: 2022 Keywords: electricity utilisation; electricity consumption; firm efficiency; data envelopment analysis; DEA; Nigeria Enterprise Survey Data; Nigeria. File-URL: http://www.inderscience.com/link.php?id=125812 File-Format: text/html File-Restriction: Access to full text is restricted to subscribers. Handle: RePEc:ids:ijcist:v:18:y:2022:i:3:p:240-266 Template-Type: ReDIF-Article 1.0 Author-Name: Ulrik Franke Author-X-Name-First: Ulrik Author-X-Name-Last: Franke Author-Name: Even Langfeldt Friberg Author-X-Name-First: Even Langfeldt Author-X-Name-Last: Friberg Author-Name: Hayretdin Bahşi Author-X-Name-First: Hayretdin Author-X-Name-Last: Bahşi Title: Maritime cyber-insurance: the Norwegian case Abstract: Major cyber incidents such as the Maersk case have demonstrated that the lack of cyber security can induce huge operational losses in the maritime sector. Cyber-insurance is an instrument of risk transfer, enabling organisations to insure themselves against financial losses caused by cyber incidents and get access to incident management services. This paper provides an empirical study of the use of cyber-insurance in the Norwegian maritime sector, with a particular emphasis on the effects of the General Data Protection Regulation and the Directive on Security of Network and Information Systems. Norway constitutes a significant case as a country having a highly mature IT infrastructure and well-developed maritime industry. Interviews were conducted with supplier- and demand-side maritime actors. Findings point to a widespread lack of knowledge about cyber-insurance. Furthermore, neither GDPR nor NIS were found to be significant drivers of cyber-insurance uptake among maritime organisations. Journal: Int. J. of Critical Infrastructures Pages: 267-286 Issue: 3 Volume: 18 Year: 2022 Keywords: security; risk; policy; regulation; cyber-insurance; information sharing. File-URL: http://www.inderscience.com/link.php?id=125816 File-Format: text/html File-Restriction: Access to full text is restricted to subscribers. Handle: RePEc:ids:ijcist:v:18:y:2022:i:3:p:267-286 Template-Type: ReDIF-Article 1.0 Author-Name: Jianfei Guo Author-X-Name-First: Jianfei Author-X-Name-Last: Guo Title: Research on safety risk assessment model of prefabricated concrete building construction Abstract: In order to overcome the problems of low safety level and low failure rate of concrete construction safety risk assessment model, a safety risk assessment model of prefabricated concrete construction is proposed. The hierarchical structure and FMEA analysis method are used to establish the safety risk assessment model of prefabricated concrete building construction. The fuzzy comprehensive assessment method is applied to solve the safety risk assessment model of prefabricated concrete construction, and the combination weight of the model can be obtained, which can be used for inversion according to the results of factor analysis to form the weight vector assessment of construction safety risk. The experimental results show that the safety level of the safety risk assessment model for prefabricated concrete building construction is up to 0.92, and the highest failure rate of assessment model is 0.3. Journal: Int. J. of Critical Infrastructures Pages: 197-210 Issue: 3 Volume: 18 Year: 2022 Keywords: prefabricated concrete building; construction safety risk; risk assessment; assessment model. File-URL: http://www.inderscience.com/link.php?id=125817 File-Format: text/html File-Restriction: Access to full text is restricted to subscribers. Handle: RePEc:ids:ijcist:v:18:y:2022:i:3:p:197-210