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RELATIONSHIP BETWEEN DYNAMIC CAPABILITY VIEW AND ORGANIZATIONAL RESILIENCE: FINDINGS FROM A SYMMETRIC APPROACH

Laszlo Vasa Ali Shojaee

Publication Name: Problems and Perspectives in Management

Publication Date: 2024-01-01

Volume: 22

Issue: 4

Page Range: 671-682

Description:

The COVID-19 outbreak has underscored the importance of strengthening an organization’s resilience and adaptive capability. In emerging and uncertain conditions, firms must adopt new capabilities to develop and survive unstable and unforeseen crises. The purpose of this study is to examine the difference between organizational resilience and the antecedents that are validated using a quantitative survey. The respondents consist of 157 top employees from 21 private service firms at the managerial level in Bangladesh. The proposed relationship is measured using the partial least squares structural equation modeling (PLS-SEM), a symmetric approach, using SmartPLS 4 software. The findings help to produce the path coefficient with organizational resilience that can lead to sustainable environments in highly turbulent conditions. The PLS-SEM analysis indicates that the antecedents of flexibility, agility, and redundancy have a strong and meaningful association with organizational resilience in response to disruptions. Therefore, this paper shows evidence that the measurement scales more effectively account for uncertainty in achieving resilience, supporting the role of the dynamic capability view.

Open Access: Yes

DOI: 10.21511/ppm.22(4).2024.51

ON THE PATH TO TOURISM DIGITALIZATION: THE DIGITAL ECOSYSTEM BY THE EXAMPLE OF KAZAKHSTAN

Lóránt Dávid Balzhan Shilibekova Roman Plokhikh

Publication Name: Geojournal of Tourism and Geosites

Publication Date: 2024-01-01

Volume: 57

Issue: Unknown

Page Range: 2060-2070

Description:

Global digitalization dramatically affects tourism actions, varying the principles of its organization, data support and the traveler himself. The main goal of the study is to analyze the digitalization process of the tourism industry at the current stage of development and its state in Kazakhstan. The article considers the issues related to the impact of electronic technology on the growth and progress of digitalization in tourism. An overview of examples for the tourism digital technologies is provided. Crucial new trends in the industry of tourism associated to digitalization are identified. The conducted research on the application of several scientific methods and technologies of information processing was based. In particular: bibliometric analysis in the field of tourism digitalization and digital ecosystems; study of Kazakhstan’ tourist Internet portals; survey of representatives of Kazakhstan’ travel agencies and modeling based on regression ordinal model. Bibliometric analysis was used to study the success level implementation of the activities in the field of tourism digitalization. This method was as a basis for identifying gaps, formed and future trends in the field of digital tourism ecosystem. The data source was the databases, which includes a wide range of publications on tourism scientific issues. The main analysis of articles was carried out in the special software Voyant Tools. Two additional research methods in this paper are applied: content analysis and modeling based on regression ordinal model. The current state of the market place in tourism, the level of application of elements of digital technologies in the sphere of tourism based on Kazakhstan' tourist platphorms is evaluated. With the help of a survey it was analyzed the degree of penetration of digital technologies currently used by companies in the local tourism market.

Open Access: Yes

DOI: 10.30892/gtg.574spl20-1373

Experimental Analysis of a Solar-Powered Centre Pivot Irrigation Site and Hyperlocal Evapotranspiration Data

Renato Kalocsai Nóra Gombköto Viktor Nagy Lajos Kubina Bálint Süle Viktor Nagy Zsolt Giczi

Publication Name: Chemical Engineering Transactions

Publication Date: 2024-01-01

Volume: 114

Issue: Unknown

Page Range: 787-792

Description:

In countries such as Hungary, the utilisation of solar energy for irrigation represents a pivotal consideration. As a consequence of climate change, the crop rotation period is characterised by an increased availability of sunny and bright days. A paucity of cloud cover and precipitation has distinguished recent Hungarian summers. The necessity for adaptation in agriculture, which produces raw materials for food, will also arise as a result of the increasingly extreme weather conditions caused by global climate change. The irrigation of crops is a vital process during increasingly frequent periods of drought. However, the cost of irrigation can be expected to rise significantly in response to elevated energy prices. The objective of this research is to ascertain the viability of utilising irrigation systems powered by renewable energy sources. Hungary is on the verge of a significant investment in its national irrigation infrastructure. Nevertheless, the investment may prove to be unprofitable as a result of the expense associated with the energy required for irrigation. In three research areas, the energy production of the solar farms associated with the pivot irrigation system has been monitored, and the hyper-local evapotranspiration data has been calculated. Regression analysis was employed to evaluate the results. The findings indicate that the dataset is significant. The field results and analysis can be useful for upfront investment in such projects. Precipitation, as a third variable, has a positive impact on the relationship between energy production and crop water demand.

Open Access: Yes

DOI: 10.3303/CET24114132

Impact Assessment of Railway Bridge Construction Schedule, based on 3D Geotechnical Finite Element Modeling

Edina Koch R. P. Ray

Publication Name: Acta Polytechnica Hungarica

Publication Date: 2024-01-01

Volume: 21

Issue: 1

Page Range: 187-205

Description:

The increasing demand for high-speed railways has risen, to solve the "age-old" problem of bridge abutments, the step between the backfill and the bridge deck. Examples prove that inadequate technical solutions can generate damage that may require long-term speed restrictions or lead to short maintenance cycles, significantly increasing the total cost of ownership. The problems associated with the transition zones require complex analysis. The complex interaction of structural elements with different stiffnesses and different dynamic behavior varies over time due to the time-dependent behavior of the soil, and in addition, a bridge deck and its connecting elements can be constructed in several sequences. This study investigated a typical single-span railway bridge and its soil environment using PLAXIS 3D geotechnical finite element software. Different constitutive soil models were used to approximate the behavior of the bridge and the connecting elements. To model the soil behavior, the HS-small constitutive model was implemented. Loads of the structure are transferred onto the subsoil by 60 cm diameter piles modeled as embedded piles. Six different construction schedules were analyzed using time-domain analyses. The importance of high-speed railways was highlighted, and a 250 km/h train speed was applied, using dynamic analysis. The study focuses on the effect of different construction schedules on settlement, consolidation time, the behavior of the transition, and the substructure movements. The results of this study show that geotechnical approaches by themselves are not enough to solve the problem of the transition zone, highlighting the collaboration of geotechnical, structural and railway engineers.

Open Access: Yes

DOI: 10.12700/APH.21.1.2024.1.12

MULTILATERAL EVALUATION OF ENERGY TECHNOLOGIES - PROPOSAL OF AN INTEGRATED MODEL

András Torma Géza Köteles

Publication Name: Iet Conference Proceedings

Publication Date: 2024-01-01

Volume: 2024

Issue: 8

Page Range: 76-81

Description:

There are many different solution available to meet a given energy demand. These solutions may differ significantly not only in their technical and economic characteristics but also in their effects on the environment. The purpose of this article is to present principles, considerations, and methods for a complex assessment of the production, conversion, transportation, storage, and end-use of various types of energy. The authors present seven distinct approaches, principles, and methodologies that are commonly employed to comprehend the consequences of various energy utilization solutions. The characteristics of each model and the range of information provided by each solution are presented through concrete examples. The applicability of different methods and approaches is also analysed comparatively. These methods have not yet been translated so far into a coherent, integrated model by either engineering practice or academia, although an accurate understanding of the impacts on the sustainability and energy trilemma necessitates applying as complex analytical solutions as possible. The objective of this article is to collate, evaluate, and harmonise a range of widely used energy usage evaluation models. The aim is to propose a coherent, integrated approach to facilitate a more comprehensive understanding of the environmental, technical, and financial implications of different energy utilisation approaches.

Open Access: Yes

DOI: 10.1049/icp.2024.2685

A Reinforcement Learning Approach to Military Simulations in Command: Modern Operations

Viktor Remeli Adonisz Dimitriu Tamas V. Michaletzky Viktor R. Tihanyi

Publication Name: IEEE Access

Publication Date: 2024-01-01

Volume: 12

Issue: Unknown

Page Range: 77501-77513

Description:

This paper presents a Reinforcement Learning (RL) framework for Command: Modern Operations (CMO), an advanced Real Time Strategy (RTS) game that simulates military operations. CMO challenges players to navigate tactical, operational, and strategic decision-making, involving the management of multiple units, effective resource allocation, and concurrent action assignment. The primary objective of this research is automating and enhancing military decision-making, utilizing the capabilities of RL. To achieve this goal, a parameterized Proximal Policy Optimization (PPO) agent with a unique architecture has been developed, specifically designed to address the unique challenges presented by CMO. By adapting and extending methodologies from achievements in the domain, such as AlphaStar and OpenAI Five, the agent showcases the potential of RL in military simulations. Our model can handle a wide range of scenarios presented in CMO, marking a significant step towards the integration of Artificial Intelligence (AI) with military studies and practices. This research establishes the groundwork for future explorations in applying AI to defense and strategic analysis.

Open Access: Yes

DOI: 10.1109/ACCESS.2024.3406148

Seismic Performance and Sustainability of Reinforced Concrete Buildings: a Comprehensive Assessment

Nurullah Bektaş Samuel Alexandro Silitonga

Publication Name: Chemical Engineering Transactions

Publication Date: 2024-01-01

Volume: 114

Issue: Unknown

Page Range: 781-786

Description:

Recent earthquakes such as the 2023 Türkiye-Syria, Morocco, and Afghanistan, 2015 Gorkha Nepal, and 2009 Indonesia earthquakes have demonstrated the vulnerability of existing building stock. Throughout Europe, many existing buildings were constructed considering low or moderate standards or without considering them. This study investigates the seismic performance of reinforced concrete (RC) buildings, exemplified as a six-story RC dormitory building, focusing on various support and foundation conditions, soil characteristics, and site seismicity scenarios representing the seismicity of Europe. The research aims to assess the potential effects of exceeding anticipated site seismic intensities, potentially leading to safer communities and infrastructure in the face of impending earthquakes. Robot Structural Analysis Professional software is used for structural analysis and design throughout soil-structure interactions and site seismicity considerations. Moreover, this study investigates the environmental implications of RC buildings, which represent the future building inventory in Europe. It examines the varying material usage required to design structures compliant with Eurocode standards through a life cycle analysis. The methodology employed in this investigation aligns with the core principles of practical design encompassing economic and environmental sustainability. The study's key findings indicate that increasing member size can enhance performance at lower intensities, but this may not be a sufficient strategy at higher intensities, where shear walls may be necessary in high seismic zones. Sustainable design necessitates a balance between material use, performance, and environmental impact.

Open Access: Yes

DOI: 10.3303/CET24114131

Stiffness Ratio Evaluation of Steel Exoskeletons Through Performance-Based Optimal Design

Marco Domaneschi Majid Movahedi Rad Raffaele Cucuzza Giuseppe Carlo Marano J. Olivo G. A. Ferro

Publication Name: Advances in Transdisciplinary Engineering

Publication Date: 2024-01-01

Volume: 59

Issue: Unknown

Page Range: 438-445

Description:

Among the various seismic retrofitting techniques, steel exoskeletons are distinguished by their non-invasive nature. However, only a few consolidated methodologies have been proposed for their design. The approach of several standard codes is based on the classification of elements according to their relative stiffness. In this way, a ratio between the stiffness of the exoskeletons and that of the building is taken as the main design parameter. In this study, a performancebased design approach was employed, with the inter-story drift of the building as the performance target. A sensitivity analysis was conducted to assess the impact of different inter-story drift thresholds on the structural behavior of the buildingexoskeleton system. For each threshold, an optimization process was conducted to identify the optimal number of exoskeletons, their placement around the building, and the dimensions of their elements. Finally, the stiffness ratios were determined for each optimal configuration and were compared to the threshold provided by the regulations. This comparison yielded interesting insights into the differences in the approaches.

Open Access: Yes

DOI: 10.3233/ATDE240577

Sustainable Uses of 3D Printing Applied to Concrete Structures †

Szabolcs Fischer Szabolcs Szalai Hanna Csótár Gusztáv Baranyai

Publication Name: Engineering Proceedings

Publication Date: 2024-01-01

Volume: 79

Issue: 1

Page Range: Unknown

Description:

This study investigates the application of honeycomb-patterned PLA as a reinforcement in concrete structures. The research focused on identifying the optimal 3D printing layout for this reinforcement and examining how the orientation of 3D-printed PLA affects the mechanical properties of the concrete. The study compares the performance of concrete reinforced with 3D-printed PLA to both unreinforced concrete and concrete reinforced with recycled amorphous aggregate from printing waste. The results demonstrate how printing orientation influences concrete strength and the potential for using recycled PLA to enhance sustainability in construction.

Open Access: Yes

DOI: 10.3390/engproc2024079055