Results 21 to 30 of about 1,566,243 (295)

Cybersecurity and Protection of Critical Infrastructure

open access: yesStudia Iuridica Lublinensia, 2023
The functioning of critical infrastructure depends on information and communication technologies (ICT) systems that enable its equipment or facilities to operate smoothly. Threats to its functioning can present a major issue for the state and society, as
Małgorzata Czuryk
doaj   +1 more source

Towards Greener 3D Printing: A Performance Evaluation of Silica Fume-Modified Low-Carbon Concrete

open access: yesBuildings
This study investigates the durability challenges of 3D-printed concrete (3DPC) and examines the effect of silica fume (SF) on its performance, focusing on mechanical properties and selected durability tests as key indicators of mix suitability for 3D ...
James Bradshaw   +4 more
doaj   +1 more source

Emerging Insights into the Durability of 3D-Printed Concrete: Recent Advances in Mix Design Parameters and Testing

open access: yesDesigns
Although 3D-printed concrete (3DPC) offers advantages such as faster construction, reduced labour costs, and minimized material waste, concerns remain about its long-term durability. This review examines these challenges by assessing how the unique layer-
James Bradshaw   +3 more
doaj   +1 more source

Towards Sustainable Mortar: Optimising Sika-Fibre Dosage in Ground Granulated Blast Furnace Slag (GGBS) and Silica Fume Blends for 3D Concrete Printing

open access: yesBuildings
Three-dimensional concrete printing (3DCP) is rapidly emerging as a transformative construction technology, enabling formwork-free fabrication, geometric flexibility, and reduced labour.
Wen Si   +3 more
doaj   +1 more source

CYBER SECURITY OF A CRITICAL INFRASTRUCTURE

open access: yesPravo, 2023
A critical infrastructure consists of basic assets and facilities whose functioning has a significant impact on the society and economy of a country, as well as on its security.
Slavimir Vesić, Martin Bjelajac
doaj   +1 more source

Cybersecurity of Critical Infrastructure [PDF]

open access: yes, 2020
AbstractThis chapter provides a political and philosophical analysis of the values at stake in ensuring cybersecurity for critical infrastructures. It presents a review of the boundaries of cybersecurity in national security, with a focus on the ethics of surveillance for protecting critical infrastructures and the use of AI.
Viganò, Eleonora   +2 more
openaire   +3 more sources

Beyond streets: The role of alleys in Abu Dhabi's and Dubai's network systems

open access: yesJournal of Urban Management
The network system is defined as the combination of streets and alleys. Although the potential of alleys in complementing street networks is acknowledged, the topic has not received a considerable attention in urban planning practice and scholarship ...
Asim Khanal   +3 more
doaj   +1 more source

Emergency and critical care services in Tanzania: a survey of ten hospitals. [PDF]

open access: yes, 2013
While there is a need for good quality care for patients with serious reversible disease in all countries in the world, Emergency and Critical Care tends to be one of the weakest parts of health systems in low-income countries.
A Iddriss   +50 more
core   +2 more sources

Tailoring rheology and mechanical properties of 3D printed mortars with nanoclays and superplasticizer

open access: yesReviews on Advanced Materials Science
Extrusion-based 3D concrete printing (3DCP) is emerging as a viable construction method due to its potential to enhance automation, reduce material waste and enable low-carbon construction solutions.
Si Wen   +3 more
doaj   +1 more source

CRITICAL INFRASTRUCTURE SECURITY MANAGEMENT ANTI-DRONE SYSTEMS

open access: yesWiedza Obronna, 2022
The problem area outlined in the article is the existence and effectiveness of anti-drone systems used to protect the state's critical infrastructure (CI).
Grzegorz Pietrek
doaj   +1 more source

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