Search results for "construct"
showing 10 items of 3723 documents
Structural behaviour of hybrid glass beams with T cross-sections
2018
Abstract An experimental investigation regarding the flexural and the shear behaviour of glass beams with length 900, 1300, 1700 mm and T cross-section is presented and discussed. T cross-sections were obtained by assembling glass web and glass flange. Some specimens were also reinforced internally in the web with steel plates of thickness 6 mm and depth 25 and 50 mm placed at the bottom portion of the beams for the entire length of the beams themselves. Three specimens for each investigated series were tested in flexure focusing on the flexural and shear response through the determination of the load-deflection curves and the crack patterns at rupture identifying the effects of steel plate…
Flexural Response of Reinforced Concrete Beam on Elastic Foundation under Vertical Load and Bending Moment: Review of Existing Methods and Proposed N…
2021
AbstractThis work examined the behavior of a RC beam on a soil foundation subject to concentrated vertical loads and bending moment in both the elastic and the plastic phases. Some of the simplifie...
Model-assisted ultrasonic calibration using intentionally embedded defects for in-process weld inspection
2021
Abstract Automated in-process Non-Destructive Testing (NDT) systems are rapidly gaining traction within the manufacturing industry as they reduce manufacturing time and costs. When considering calibration and verification of such systems, creating defects of known geometry and nature during the deposition of a weld can: (I) help examine the capability of the automated system to detect and characterise defects, (II) be used to form a database of signals associated with different defect types to train intelligent defect classification algorithms, and (III) act as a basis for in-process gain calibration during weld inspection at high temperatures, where the ultrasound beam can be skewed as a r…
Continuous monitoring of an intentionally-manufactured crack using an automated welding and in-process inspection system
2020
Abstract Automated weld deposition coupled with the real-time robotic Non-Destructive Evaluation (NDE) is used in this paper. For performance verification of the in-process inspection system, an intentionally embedded defect, a tungsten rod, is introduced into the multi-pass weld. A partially-filled groove (staircase) sample is also manufactured and ultrasonically tested to calibrate the real-time inspection implemented on all seven layers of the weld which are deposited progressively. The tungsten rod is successfully detected in the real-time NDE of the deposited position. The same robotic inspection system was then used to continuously monitor an intentionally-manufactured crack for 20 h.…
AGRIGENTO SMART - Integration and sustainability in the regeneration of an urban public space. A case study.
2017
Agrigento, city of the Valley of the Temples, for a few decades it is only known for the "unauthorised development" (or sacco edilizio between the '50s and' 70s of the twentieth century). Today is trying to regain possession of those urban spaces subtracted from a foolish speculation, assigning to them a renewed urban and social connotation, beauty and utility, trying to heal some of the major wounds of the past. With the awareness that it is not a path easy, nor immediate. The issue of public space, and its renewed use today, assumes a crucial role in the process of urban regeneration. Our focus, of multidisciplinary approach, is aimed at the southern edge of the old town called "Square Ra…
Perceived value of advanced mobile messaging services: A cross-cultural comparison of Greek and Spanish users
2017
PurposeThe purpose of this paper is to analyse the role of perceived value on post-acceptance behaviour for users of advanced mobile messaging services (AMMS). The paper also compares differences in the influence of perceived value on satisfaction and of satisfaction on loyalty to AMMS in Spain and Greece, to test the moderating effect of culture.Design/methodology/approachPartial least squares path modelling is used to test the model. Perceived value is modelled as a multidimensional reflective construct with four dimensions. Culture is studied at a national level. Differences between countries are tested using the multigroup analysis approach proposed by Henseleret al.(2009).FindingsPerce…
The Uses of the Imagination in Moral Neuroeducation
2019
In contrast to influential theories that focus on top-down, deliberative reasoning, triune ethics theory seeks to gather findings from neurobiology, affective neuroscience, and cognitive science and integrate them into a bottom-up theory that focuses on that motivational orientations that are rooted in experientially formed, evolved, unconscious emotional systems. Triune ethics theory identifies three basic attractors for moral functioning based on brain evolution: safety, engagement and imagination. It proposes an integrative ethical education model based on the notion of a moral imagination, which can enhance moral development. It integrates, on the one hand, John Dewey’s theory of moral …
Definition of analytical cleaning procedures for archaeological pottery from underwater environments: The case study of samples from Baia (Naples, So…
2021
Abstract This work is focused on a multidisciplinary study of 13 pottery fragments collected in the submerged archaeological site of Baia (Naples, Italy). Founded by the Romans in the 1st century B.C., this archaeological area represents one of the greatest evidences of Roman architecture and it includes ancient ruins whose structures range from maritime villas and imperial buildings. Several diagnostic tests were carried out in order to characterize the archaeological materials, their structure and properties, as well as the alteration and degradation products. Degradation forms in seawater imply not only a variation in the physico-mechanical and chemical properties of the material but als…
Feminist Perspectives on Teaching Masculinities
2019
The chapter discusses the positive public role of gay and queer masculinities in their intersection with other identity configurations (class, race, and able-bodiedness). It presents an overview of the main perspectives on social construction and representation of homosexual masculinities within educational and academic settings using critical masculinities theory. While challenging homonormativity in research and education representations of the ‘rational man’ and ‘macho ethics’ of male researchers who ‘discover’, ‘conquer’ investigate ‘systematically’ or ‘rigorously’ are analyzed. Criticizing the play of inexpressiveness and emotionlessness objectivity as criterion of academic writing, re…
Implementation and performance of the ATLAS second level jet trigger
2008
ATLAS is one of the four major LHC experiments, designed to cover a wide range of physics topics. In order to cope with a rate of 40 MHz and 25 interactions per bunch crossing, the ATLAS trigger system is divided in three different levels. The first one (LVL1, hardware based) identifies signatures in 2 microseconds that are confirmed by the the following trigger levels (software based). The Second Level Trigger (LVL2) only looks at a region of the space around the LVL1 signature (called Region of Interest or ROI), confirming/rejecting the event in about 10 ms, while the Event Filter (Third Level Trigger, EF) has potential full event access and larger processing times, of the order of 1 s. T…