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Bernhard A. Schrefler, Carmelo E. Majorana, Gabriel A. Khoury and Dariusz Gawin
This paper presents the physical, mathematical and numerical models forming the main structure of the numerical analysis of the thermal, hydral and mechanical behaviour of normal…
Abstract
This paper presents the physical, mathematical and numerical models forming the main structure of the numerical analysis of the thermal, hydral and mechanical behaviour of normal, high‐performance concrete (HPC) and ultra‐high performance concrete (UHPC) structures subjected to heating. A fully coupled non‐linear formulation is designed to predict the behaviour, and potential for spalling, of heated concrete structures for fire and nuclear reactor applications. The physical model is described in more detail, with emphasis being placed upon the real processes occurring in concrete during heating based on tests carried out in several major laboratories around Europe as part of the wider high temperature concrete (HITECO) research programme. A number of experimental and modelling advances are presented in this paper. The stress‐strain behaviour of concrete in direct tension, determined experimentally, is input into the model. The hitherto unknown micro‐structural, hydral and mechanical behaviour of HPC/UHPC were determined experimentally and the information is also built into the model. Two examples of computer simulations concerning experimental validation of the model, i.e. temperature and gas pressure development in a radiatively heated HPC wall and hydro‐thermal and mechanical (damage) performance of a square HPC column during fire, are presented and discussed in the context of full scale fire tests done within the HITECO research programme.
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Rim El Khoury, Nohade Nasrallah and Bahaaeddin Alareeni
As reporting environmental, social and governance (ESG) information is not yet mandatory in all countries, it is intriguing to understand ESG’s underlying driving mechanisms. This…
Abstract
Purpose
As reporting environmental, social and governance (ESG) information is not yet mandatory in all countries, it is intriguing to understand ESG’s underlying driving mechanisms. This study aims to investigate ESG determinants in the banking sector of the Middle East and North Africa countries.
Design/methodology/approach
The authors gather data for 38 listed banks for the period 2011–2019. The data used is threefold as follows: data related to ESG; firm-level; and country-level data. While ESG and firm’s level data are taken from Refinitiv, country-level data are extracted from the World Bank. Using panel regression, the authors test the effect of firm- and country-specific variables on the overall ESG score and its pillars.
Findings
Results indicate that banks’ ESG scores are negatively affected by performance and positively affected by size. The level of economic development exerts a negative impact on the environmental pillar while the social development exerts a positive impact on ESG and governance pillar. Corruption is the only country-level that gathers a homogenous effect on ESG scores. Finally, the three pillars follow heterogeneous patterns.
Originality/value
This study extends the scope of previous studies by introducing new country-level independent variables to contribute to the understanding of ESG antecedents.
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Introduces papers from this area of expertise from the ISEF 1999 Proceedings. States the goal herein is one of identifying devices or systems able to provide prescribed…
Abstract
Introduces papers from this area of expertise from the ISEF 1999 Proceedings. States the goal herein is one of identifying devices or systems able to provide prescribed performance. Notes that 18 papers from the Symposium are grouped in the area of automated optimal design. Describes the main challenges that condition computational electromagnetism’s future development. Concludes by itemizing the range of applications from small activators to optimization of induction heating systems in this third chapter.
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Developing software for processing bibliographic materials in the Arabic language is a relatively recent development. When libraries in parts of the Middle East, where Arabic is…
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Developing software for processing bibliographic materials in the Arabic language is a relatively recent development. When libraries in parts of the Middle East, where Arabic is the main language, started automating their collections, most library systems did not provide for the use of Arabic script and this capability had to be developed. Automated library systems started to emerge (like Minisis, ALEPH, Dobis/Libis, TinLib, OLIB) to fill the gap for non‐Roman scripts. This article describes the stages the American University of Beirut Libraries went through in converting their Arabic materials for use in the OLIB7 library management system. A description of the background of the library is given along with the details of the romanisation process, the conversion process, the software and hardware chosen, the testing of the database, problems encountered, output and the handling of authority records.
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Abstract
Purpose
This work aims to investigate the modifications in a transistor behavior after hot carrier injection processes from the integrated junction.
Design/methodology/approach
A high voltage is applied across the drain‐source contacts, so a reverse current is induced through the integrated junction and defects are then created.
Findings
The results point out to a dependence of the VDMOSFET reliability on the operating conditions which could induce parasitic effects on the structure. Induced defects alter the form of several MOSFET characteristics.
Originality/value
A new method of degradation is presented along with a series of characterization techniques‐based electrical parameters variations.
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Egemen Sertyesilisik and Begum Sertyesilisik
Resilience of the economy is related with its ability to cope with the challenges (e.g., economic and environmental crises). Economies need to be resilient as countries having…
Abstract
Resilience of the economy is related with its ability to cope with the challenges (e.g., economic and environmental crises). Economies need to be resilient as countries having resilient economy can enhance welfare of their people and achieve sustainable development (SD). Total factor productivity can be improved through smart technologies, smart workforce, and innovations. It requires holistic and systematic as well as strategic approach as it is directly related with the SD of the countries and welfare of their people. It is directly related with the policies covering all these main aspects with the long-term, systematic, and holistic view. Resilient economies need to enhance their resilience to keep them resilient despite of the changes which can act as threats in the future. Resilience of the economy necessitates transformation of the manufacturing industry (MI) into the sustainable, smart, circular, and global one. In this way MI's competitiveness can be enhanced. For this reason, based on an in-depth literature review, this chapter aims to examine ways for enhancing resilience of the global economy through smart, circular, and competitive MI. Specific focus is on the policies fostering the transformation of the MI into the sustainable, smart, circular, global, and innovative one. This chapter emphasizes the importance of and need for the productivity-based resilient economy. Policy makers, academics, and researchers in the relevant field can get benefit from this chapter.
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Hasan Al Wael, Wael Abdallah, Hasan Ghura and Amina Buallay
This study aims to investigate the organizational and individual factors that influence the adoption of artificial intelligence (AI) in Kuwait's public accounting sector.
Abstract
Purpose
This study aims to investigate the organizational and individual factors that influence the adoption of artificial intelligence (AI) in Kuwait's public accounting sector.
Design/methodology/approach
The methodology of this study is a cross-sectional survey of 393 experienced accounting professionals, using partial least square structural equation modeling to analyze the data.
Findings
The findings show that organizational culture, regulatory support, perceived usefulness and ease of use have a direct positive effect on AI adoption, while perceived usefulness and ease of use also have an indirect positive effect through accounting profit and behavioral intention. However, the availability of resources, effective communication channels and competition pressure have an insignificant impact on AI adoption.
Originality/value
This study pioneers a structural framework to elucidate the perceived enhancement of accounting quality through AI system integration. Further, this research adds to the literature on AI adoption in accounting. This study also offers empirical evidence regarding how organizations in Kuwait's public accounting sector view AI systems in accounting.
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Sachin Vijaya Kumar and N. Suresh
The Reinforced Concrete(RC) elements are known to perform well during exposure to elevated temperatures. Hence, RC elements are widely used to resist the extreme heat developing…
Abstract
Purpose
The Reinforced Concrete(RC) elements are known to perform well during exposure to elevated temperatures. Hence, RC elements are widely used to resist the extreme heat developing from accidental fires and other industrial processes. In both of the scenarios, the RC element is exposed to elevated temperatures. However, the primary differences between the fire and processed temperatures are the rate of temperature increase, mode of exposure and exposure durations. In order to determine the effect of two heating modalities, RC beams were exposed to processed temperatures with slow heating rates and fire with fast heating rates.
Design/methodology/approach
In the present study, RC beam specimens were exposed to 200 °C, to 800 °C temperature at 200 °C intervals for 2 h' duration by adopting two heating modes; Fire and processed temperatures. An electrical furnace with low-temperature increment and a fire furnace with standard time-temperature increment is adapted to expose the RC elements to elevated temperatures.
Findings
It is observed from test results that, the reduction in load-carrying capacity, first crack load, and thermal crack widths of RC beams exposed to 200 °C, and 600 °C temperature at fire is significantly high from the RC beams exposed to the processed temperature having the same maximum temperature. As the exposure temperature increases to 800 °C, the performance of RC beams at all heating modes becomes approximately equal.
Originality/value
In this work, residual performance, and failure modes of RC beams exposed to elevated temperatures were achieved through two different heating modes are presented.
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Konstantin Hondros and Lukas Vogelgsang
In this paper, we bridge the gap between imitation and creativity, as we examine whether and how it is possible to succeed in imitation, understood here as the intentional…
Abstract
In this paper, we bridge the gap between imitation and creativity, as we examine whether and how it is possible to succeed in imitation, understood here as the intentional creation of alikeness and, at the same time, the production of something novel and valuable. By distinguishing processes of copying, echoing, and eluding, we scrutinize how different imitation processes intended to create alikeness lead to the emergence of novelty. Using empirical data from two distinct empirical fields, music and pharmaceuticals, we discuss if and how these processes may even lead to emulation and thus the emergence of novelty superseding the imitated original. We find that novelty emerges during processes of imitation from the interplay of a guiding structure obtained from existing originals and the performative variation embedded in processes of imitation. We thereby identify performance enactment, translations between an imitated core and surrounding opportunities as well as the generative effects of intellectual property regulation as key ingredients to foster emulative novelty.
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