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Dynamic Knowledge Management Capabilities: An Approach to High-Performance Organization
Get PDFThe purpose of this research was to study the effect of dynamic knowledge management capability on high-performance organizations and organizational performance. The data collection was carried out using questionnaires from 4-5-star hotels in Thailand, for a total of 148 hotels. The data analysis was performed using descriptive statistics followed by Pearson's correlation analysis, confirmatory factor analysis, and structural equation modeling. The research results revealed that dynamic knowledge management capability had a positive direct effect on high-performing organizations and a positive indirect effect on organizational performance. Therefore, executives should emphasize the building of dynamic knowledge management capabilities to improve the performance of high-performance organizations, which will lead to performance strength beyond rivals. Doi: 10.28991/HIJ-2022-03-03-01 Full Text: PD
The Global Equity Market Reactions of the Oil & Gas Midstream and Marine Shipping Industries to COVID-19: An Entropy Analysis
Get PDFThis article quantifies the information flow between major equities in the Oil & Gas Midstream and Marine Shipping industries, on the basis of the effective transfer entropy methodology. In addition, the article provides the first analysis of investor fear and market expectations in these sectors, according to the Rényi entropy approach. The period of study was extended over five years to fully capture the pre/post-COVID situations. The entropy results reveal a major change in the underlying information flow pattern among equities in the Oil & Gas Midstream and Marine Shipping sectors in the aftermath of COVID-19. According to the new (post-COVID) paradigm, the stocks in the Oil & Gas Midstream and Integrated Freight & Logistics industries have gained momentum in occupying six of the ten positions within the list of the most influential equities in the market, in terms of information transmission. The disorder and randomness have decreased for over 89% of the studied equities, after virus outbreak. For the equities detected with high information-transmission standing, the Rényi entropy results indicate that investors more likely showed a higher level of future expectations and a lower level of fear regarding frequent market events within the post-COVID timeline. Doi: 10.28991/HIJ-2021-02-04-07 Full Text: PD
Digital Transformation: Smart Strategy in Administrative Reform in Vietnam
Get PDFObjectives: Digital transformation is becoming such a big trend that countries worldwide cannot resist because it brings prosperity and development to social progress. Therefore, countries, especially emerging countries, need to quickly bring the latest technological advances into socio-economic development. Therefore, the purpose of the article is to point out the theoretical issues of digital transformation, the advantages and challenges, and their impact on Vietnam's provincial administrative reform, and forecast the trend of the impacts of digital transformation on administrative reform at the provincial level. Methods/Analysis: Qualitative and quantitative research methods have been used together, in which quantitative methods use available literature sources. The qualitative method has been developed based on designing two questionnaires on digital transformation and administrative reform, thereby exploring the current results of digital transformation and administrative reform in a cross-section. Findings: Research has shown that the reality of digital transformation and administrative reform in provincial administrative agencies in Vietnam is still limited. Although administrative reform is superior to digital transformation, they are closely related in positive ways. Novelty /Improvement: Research shows that administrative reform at the provincial level in Vietnam will become more competent and more efficient when administrative agencies promote the application of digital transformation; both digital transformation and administrative reform need to be concerned at the same time. Besides, a more focus on developing digital capacity and skills for civil servants is necessary for digital transformation and administrative reform to achieve high efficiency. Doi: 10.28991/HIJ-2021-02-04-06 Full Text: PD
Spin-Orbit Coupling Effect on the Electrophilicity Index, Chemical Potential, Hardness and Softness of Neutral Gold Clusters: A Relativistic Ab-initio Study
Get PDFThe Electrophilicity index (𔜔) is related to the energy lowering associated with the maximum amount of electron flow between a donor and an acceptor and possesses adequate information regarding structure, stability, reactivity, and interactions. Chemical potential (μ) measures charge transfer from a system to another having a lower value of μ, while chemical hardness (η) is a measure of the characterized relative stability of clusters. The main purpose of the present research work is to examine the Spin-Orbit Coupling (SOC) effect on the behavior of the electrophilicity index, chemical potential, hardness and softness of neutral gold clusters Aun (n=2-6). Using the second-order Douglas-Kroll-Hess Hamiltonian, geometries are optimized at the DKH2-B3P86/DZP-DKH level of theory. Spin-orbit coupling energies are computed using the fourth-order Douglas-Kroll-Hess Hamiltonian, generalized Hartree-Fock method and all-electron relativistic double-ζ level basis set. Then, spin-orbit coupling (SOC) corrections to the electrophilicity index, chemical potential, hardness and softness are calculated. It is revealed that spin-orbit correction to the vertical chemical hardness has an important effect on Au3 and Au6, i.e. SOC decreases (increases) the hardness of gold trimer (hexamer). Due to the relationship between hardness and softness, σ =1/η, inclusion of spin-orbit coupling increases (decreases) the softness of Au3 (Au6) and thus destabilizes (stabilizes) it. Spin-orbit coupling (SOC) also has an important effect on the chemical potential of Au3 by decreasing its value. It is found that spin-orbit coupling has a considerable effect on the electrophilicity index of gold trimer and greatly increases its value. Furthermore, SOC increases the maximal charge acceptance of Au3 more and thus destabilizes it more. As a result, the spin-orbit coupling effect appears to be important in calculating the electrophilicity index of the gold trimer. Doi: 10.28991/HIJ-2021-02-01-05 Full Text: PD
Improvement and Investigation of the Requirements for Electric Vehicles by the use of HVAC Modeling
Get PDFCurrent activities in the field of vehicle electrification offer a great potential for contributing to climate change mitigation by reducing anthropogenic CO2 emissions. Beyond the environmental strain, there is an economic one, too. It is therefore crucial for the European automotive industry to exploit not only the environmental benefits, but also the business opportunities, which come from the transition from conventional fuel powered to electrified vehicles. To capture these opportunities, electric vehicles must deliver better performance at a lower price, overcoming the constraints that are currently limiting their mass-market uptake. This paper presents the approach of the research and innovation action H2020 project QUIET to meet these stringent requirements by developing an improved and energy efficient electric vehicle with an increased driving range under real world driving conditions. This is achieved by exploiting the synergies of a technology portfolio in the areas of: user centric design with enhanced passenger comfort and safety, lightweight materials with enhanced thermal insulation properties, and optimised vehicle energy management. Doi: 10.28991/HIJ-2021-02-01-07 Full Text: PD
Information Systems Development Methodologies: A Review Through a Teleology Approach
Get PDFThe information systems analysis and design methodologies devised at the outbreak of the third industrial revolution shaped the systems analysis discipline and have trickled down to all systems, influencing most aspects of human development. To cope with the explosion of digital technology, these methodologies had to be developed rapidly, drawing from a wide range of theoretical backgrounds, based mainly on the "hard" scientific method and the "softer" systems approach. In the run-up to Industry 4.0, with multiple information systems emerging, reflection on systems' design fundamentals is important. Intended to serve human activity and well-being, information systems are anthropocentric. Their success lies in their ability to serve human goals. Information systems analysis and design methodologies play a role in this by ensuring the best match between what is sought from systems and what they deliver in terms of the systems' underlying final cause, or "telos". The paper investigates the teleological orientation of four founding systems analysis and design methodologies. Using the Wood-Harper and Fitzgerald taxonomy in order to identify the conceptual origins of the four methodologies under review, it categorizes and subsequently incorporates them into an extended taxonomy, assesses whether and how they are devised to cater to the incorporation of goals, and explains the inferred results based on the taxonomy. The paper posits that the founding information systems analysis and design methodologies do not have a marked teleological orientation and do not dispose of techniques for adequately incorporating systems' goals. Doi: 10.28991/HIJ-2021-02-04-09 Full Text: PD
Driving Technologies for the Design of Additive Manufacturing Systems
Get PDFIn recent years, the Additive Manufacturing (AM) technology, belonging to the most comprehensive Net Shape Forming family, has shown a growing trend due to the increasing quality of the built product. These results may open the application of the AM to the industrial field, moving the application from laboratories to the plant floor. This step requires machines capable of executing the technology process of AM with the requirements of the industrial environment, concerning, for example, production speed, reliability, robustness, and process stability. The design of such a type of machinery requires a systematic and multidisciplinary approach to reach these industrial targets. Indeed, the AM process involves several design technological issues, like temperature control of the material to be processed, characteristics of the energy source for material transition, control of the power transferred to the material, scanning system's head control, 3D model's layer definition, and generation of the laser point's trajectories. The final product's quality strongly depends on all these aspects, which are synergically linked to each other, as well as on the technical solutions to realize them. The paper presents an interdisciplinary approach to the design of machines for AM, based on the Powder Bed Fusion process and targeted at the industrial field. The technological platforms discussed in the paper are essential for such types of machines. The strategy proposed constitutes a base reference point for the definition of a methodological approach to the design of AM machinery. Doi: 10.28991/HIJ-2021-02-01-03 Full Text: PD
Use of Blockchain Technology in Energy Banking and Electricity Markets
Get PDFPower system reforms worldwide have commoditized electric energy, and thus the electricity market has been developed. With this, trading of electric energy takes place in various time-domains like the day ahead, real-time, etc. These transactions take place over the counter (OTC) or Power Exchange (Px), which provide the market participants with the required platform and payment security. The transactions on OTC and Px requires a third-party platform and guarantee for contract and settlement, there incurs overhead cost. Since electric energy is a fungible commodity, it can be transacted very well with the old system like barter. Energy Banking is one such mechanism wherein one utility supplies the energy to another utility that needs it more and, in leisure, the energy can then be provided back. The requisite security of the transactions can be provided by blockchain technology. Energy banking is presently being done only on a MW quantum basis with no price tag, despite the cost being dependent on the demand-supply ratio. To ensure energy banking transactions in real-time and free from the perils of financial settlements, this article suggests the use of the Peer-to-Peer (P2P) model of blockchain technology for executing Smart Contracts mutually agreed upon by both parties and avoiding third party overhead costs. Doi: 10.28991/HIJ-2021-02-03-03 Full Text: PD
The Benefits of a Convergence between Art and Engineering
Get PDFAs design practitioners, researchers, and educators, we constantly find ourselves shuffled between the humanities and sciences. In fact, the design departments in universities around the globe are located within the faculties of engineering, architecture, visual art, liberal are or environmental sciences, thus becoming a meeting point for academics and professionals coming from both the humanities and sciences. The synergy resulting from the variety of backgrounds and expertise creates a fertile ground for exploration on both a conceptual and technical level. By briefly compiling and analyzing a review of literature and creative works spanning from the renaissance to contemporary art, this paper reflects on the potential benefits of combining engineering and art research. The authors of this paper look at the increasingly delicate role that technicians, engineers, and computer programmers play in developing technologies that impact our social, emotional, and intimal lives, and advocate for art as a context and tool to help those professional developing their sensitivity and critical sense, besides their skills. In doing so, the paper makes a contribution to the STEM vs. STEAM conundrum by encouraging an education that merges arts and humanities disciplines with scientific and technical subjects. Doi: 10.28991/HIJ-2021-02-01-04 Full Text: PD
Thermodynamic Analysis of a Combined Single Effect Vapour Absorption System and tc-CO2 Compression Refrigeration System
Get PDFThe transcritical CO2 refrigeration system is coupled with the single effect vapour absorption with LiBr-water as a working pair, having the objective of enhancing the performance of the low temperature transcritical refrigeration system while using a natural working pair and reducing the electricity consumption to produce low temperature refrigeration. The high grade waste heat rejected in the gas cooler of the tc-CO2 compression refrigeration system (TCRS) is utilized to run the single effect vapour absorption system (SEVAR) to enhance the energy efficiency of the system. The gas cooler in the transcritical CO2 system has heat energy at a high temperature and pressure, which is utilized to run the vapour absorption system, while the other refrigerant heat exchanger provides subcooling to further enhance the performance. The combined cycle can provide refrigeration temperature at different levels, to use it for different applications. Energetic and exergetic analysis have been done to analyze the combined system to compute the performance parameters and the irreversibilities occurring in different components to further increase the performance. The combined system is optimized for various heat rejection and refrigeration temperatures. The COP of the combined system has been enhanced by 24.88% while the enhancement in exergetic efficiency (ηex) is observed at 10.14%, respectively, over tradition transcritical CO2 compression refrigeration system, with -10°C as an evaporation (TCRS cooling) temperature and the exit temperature of gas cooler T4 being 40°C. Doi: 10.28991/HIJ-2021-02-02-02 Full Text: PD