Edelweiss Applied Science and Technology最新文献

{"title":"Aerial e-mobility perspective: Anticipated designs and operational capabilities of eVTOL urban air mobility (UAM) aircraft","authors":"Osama A. Marzouk","doi":"10.55214/25768484.v9i1.4156","DOIUrl":"https://doi.org/10.55214/25768484.v9i1.4156","url":null,"abstract":"We collected data about 13 urban air mobility (UAM) electric vertical take-off and landing (eVTOL) aircraft from 12 UAM companies in the world. While none of these models has yet reached a large-scale commercial operation (particularly as air taxis), some of them progressed well in the certification process and may have their UAM models widely operated within a few years. This article focuses on the variability in the configurations of these UAM eVTOL aircraft for aerial e-mobility; such as single-fixed-wing, tandem-tilt-wing, canard wing, fixed-rotor fixed-wing, full tilt-rotor, partial tilt-rotor, V-shaped tail, tailless, twin tail, conventional tail assembly, distributed propulsion, multicopter, rear forward thrust propeller, ducted fans, and a hybrid airplane-helicopter design. The 13 UAM eVTOL aircraft covered here are: (1) EH216-S (by EHang), (2) VoloCity (by Volocopter), (3) Lilium Jet (by Lilium), (4) VoloRegion (by Volocopter), (5) CityAirbus NextGen (by Airbus), (6) Passenger Air Vehicle - PAV (by Boeing), (7) S-A2 (by Hyundai), (8) Joby (by Joby Aviation), (9) VX4 (by Vertical Aerospace Group), (10) Midnight (by Archer Aviation), (11) Eve (by Eve Air Mobility), (12) Jaunt (by Jaunt Air Mobility), and (13) Generation 6 (by Wisk Aero). Out of these 13 UAM eVTOL aircraft models for aerial e-mobility and/or air taxis, we found that 11 models utilize a wing configuration, while only two use a wingless multirotor concept (as in hobbyist drones). A fixed-wing design is associated with a faster travel speed, at the expense of added restrictions on maneuvering and low-speed travel (or hovering). Six models are intended to have an onboard human pilot, while the remaining seven models are designed to be pilotless. One model demonstrated the ability to use hydrogen as a clean source of energy through a fuel cell system.","PeriodicalId":36430,"journal":{"name":"Edelweiss Applied Science and Technology","volume":"9 1","pages":"413-442"},"PeriodicalIF":0.0,"publicationDate":"2025-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"http://learning-gate.com/index.php/2576-8484/article/download/4156/1572","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147903324","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Thermoelectric generators versus photovoltaic solar panels: Power and cost analysis","authors":"Osama A. Marzouk","doi":"10.55214/25768484.v8i5.1697","DOIUrl":"https://doi.org/10.55214/25768484.v8i5.1697","url":null,"abstract":"In the current study, the concept of building a power plant using thermoelectric generator (TEG) modules is investigated, both technically and economically. The hypothesized thermoelectric generation power plant is a modular system, consisting of a large array of electrically connected thermoelectric generator units for generating clean electricity with-out greenhouse gas (GHG) emissions, noise, or hazardous solid wastes. The envisioned thermoelectric generation power plant (TEGPP) considered here is assumed to utilize solar radiation as a heat source, and water as a heat sink. The viability of such a concept is examined in the current study based on available specifications of a high-output thermo-electric generator module released in the market (TEG1-24111-6.0). Benchmarking is car-ried out considering a high-efficiency photovoltaic (PV) panel in the market (SunPower SPR-MAX3-400), assuming that it operates under standard solar radiation of 1,000 W, and with a standard panel temperature of 25 C, causing it to give an output electric power of 400 W (DC or direct current). It is found that in order to have an electric power of a thermoelectric generator unit similar to that of a photovoltaic panel of equal surface area, the temperature at the hot side of the thermoelectric generator unit should be about 70 C if the cold-side temperature is 30 C. However; under this output power equiva-lence, the price of the thermoelectric generator unit is about 90 times that of a photovol-taic panel of equal size (based on prices of October 2023). At an elevated hot-side tem-perature of 300 C for the thermoelectric generator unit (with the cold-side temperature being still 30 C), the thermoelectric generator unit can generate electric power that is about 25 times the power generated by a photovoltaic panel of an equal geometric area. This big boost in the output power still does not counteract the large cost difference be-tween the thermoelectric generator technology and the photovoltaic technology, where the per-watt(electric) cost in the case of thermoelectric generators is 3.5 times its value in the case of photovoltaic panels. Thus, the TEG technology in its intensified generation mode is still relatively more expensive compared to the PV technology. The practical im-plications of the current study are excluding the thermoelectric generation (based on the Seebeck effect) concept from large-scale commercial power plants, and viewing thermoe-lectric generators as sources of small electric power for waste heat management or con-venient power sources for small mobile devices.","PeriodicalId":36430,"journal":{"name":"Edelweiss Applied Science and Technology","volume":"8 5","pages":"406-428"},"PeriodicalIF":0.0,"publicationDate":"2024-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://learning-gate.com/index.php/2576-8484/article/download/1697/584","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147899080","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The impact of technology absorption capacity on competitive advantage in Vietnamese small and medium enterprises","authors":"Nguyen Van Thuy","doi":"10.55214/25768484.v8i4.1051","DOIUrl":"https://doi.org/10.55214/25768484.v8i4.1051","url":null,"abstract":"This study examines the impact of technology absorption capacity on competitive advantage in Vietnamese small and medium enterprises. Technology absorptive capacity can help SMEs enhance their competitive advantage by improving customer interactions, optimizing business processes, encouraging innovation, expanding markets, and increasing transparency and trustworthiness. The study assessed the impact of technology absorptive capacity on SME’s competitive advantage. The research team conducted a questionnaire survey to assess the impact of technology absorption capacity on the competitive advantages of 300 Vietnamese small and medium-sized enterprises, specifically those engaged in digital transformation and the integration of technologies into their production and business activities. With the survey data collected, the study uses quantitative analysis methods, including steps to evaluate the reliability of variables in the model based on the Cronbach Alpha coefficient; Exploratory Factor Analysis (EFA) and Confirm Factor Analysis (CFA) are used to identify and confirm the factors and scales in the model, Structural Equation Modeling (SEM) is applied to determine the impact relationship between the factors and variables in the research model. The results show that technology absorption capacity has a strong impact on the innovation business model, strategic flexibility, and competitive advantage of the SME. Based on the results, the study has given some specific policy implications for the digital transformation process to enhance technological capacity through identifying and applying emerging technologies to current small and medium enterprises.","PeriodicalId":36430,"journal":{"name":"Edelweiss Applied Science and Technology","volume":"110 30","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141821230","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"How does artificial intelligence affect the business context? A bibliometric analysis","authors":"Jorge Campoverde Campoverde, Katherine Coronel-Pangol, Doménica Heras Tigre","doi":"10.55214/25768484.v8i4.1048","DOIUrl":"https://doi.org/10.55214/25768484.v8i4.1048","url":null,"abstract":"We conducted a descriptive bibliometric analysis to examine scientific production, identify the most influential publications, and identify the most and least researched topics in four specific knowledge domains. We used a quantitative, descriptive, and correlational research approach to scientific production to carry out the analysis, which involved extracting 7,937 articles from the Web of Science and distributing them into three search equations. Using SciMAT v1.1.04 software, we processed the data and conducted a descriptive analysis of scientific production, enabling the creation of maps highlighting scientists with the most and least researched topics. The analysis of published articles, author performance, most productive journals, and most cited articles provided a detailed view of the dominant trends and approaches in the fields of Artificial Intelligence and business. The analysis showed that there is a significant evolution in the scholarly output, with themes such as \"Value Creation\", \"Artificial Intelligence\", \"Business Intelligence\", \"E-Commerce\", \"Decision Making\" and \"Management\" emerging as central in different periods, indicating their continued importance. Additionally, we note the inclusion of emerging themes like 'Customer Experience', 'Chatbots', 'Internet of Things', and 'Machine Learning', which reflect the dynamics and evolution of research concerns over time.  The results of the analysis have significant implications for business policy and strategy formulation. Understanding emerging trends can help organizations make informed decisions and proactively adapt to changes in the artificial intelligence and sustainability landscape.","PeriodicalId":36430,"journal":{"name":"Edelweiss Applied Science and Technology","volume":"121 44","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141821017","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluating the effect of using augmented reality (Metaverse) on improving the teaching and academic performance","authors":"K. Al-Tkhayneh, Z. Ellala, Balkees Abuawad, Razan Alkhatib, Eman Saleh Almasri","doi":"10.55214/25768484.v8i4.1050","DOIUrl":"https://doi.org/10.55214/25768484.v8i4.1050","url":null,"abstract":"This study aimed at evaluating the effect of employing the augmented reality (metaverse) on improving the process of teaching and academic performance. An electronic questionnaire containing five questions was distributed to the academic groups that received the lesson using augmented virtual reality (Metaverse). The aim of the questions was to evaluate their experience, and after they answered the questions, the answers were analyzed in the form of percentages and frequencies. The study sample consisted of (97) students from Al-Ain University enrolled in the programs of (special education, nutrition, and applied sociology), to whom the experiment was applied using augmented virtual reality in teaching during their academic course. The results revealed that (83%) of the respondents reported that the augmented virtual reality contributed to understanding the concepts of the lesson well, (79%) felt enjoyment in using this technique, (75%) suggested that the technique enhanced their involvement in the content well, (68%) suggested that augmented virtual reality could be a useful educational instrument in the future, and (77%) confirmed that the lesson's objectives were achieved by using metaverse technique in teaching. However, several challenges were faced by students, including the used language (only English) and the negative effects of bad quality of used glasses. Based on the findings, the study recommended addressing several key areas for optimizing the use of augmented virtual reality (AVR) in teaching. For example, diversifying language options for AVR content is crucial to accommodating the linguistic diversity among students, thereby enhancing accessibility and comprehension. Additionally, we should invest in high-quality equipment and implement regular maintenance protocols to enhance the quality of equipment, specifically addressing issues related to the negative effects of subpar AVR hardware. ","PeriodicalId":36430,"journal":{"name":"Edelweiss Applied Science and Technology","volume":"122 51","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141822153","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Morphometric evaluation of guinea pigs (Cavia Porcellus) in Southern Peru","authors":"Dennis Quispe Condori, Ferdynand Marcos Huacani Pacori, Javier Mamani Paredes, R. Mamani-Cato","doi":"10.55214/25768484.v8i4.1049","DOIUrl":"https://doi.org/10.55214/25768484.v8i4.1049","url":null,"abstract":"The aim of this study was the morphometric evaluation of guinea pigs in southern Peru. The study was carried out at the Agrarian Experimental Station Illpa (AESI) of the National Institute of Agrarian Innovation (NIAI) in Puno at 3824 meters above sea level. 120 guinea pigs were used (females n = 60 and males n = 60) with an average age of 22 days. The morphometric characteristics evaluated were: body weight (BW), chest circumference (CC), abdominal perimeter (AP), neck perimeter (NP), head length (HL) and head width (HW). To evaluate the effect of sex on morphometric characteristics, a completely randomized design was used. To determine the equation that best predicts body weight, stepwise regression was used, and correlations between morphometric characteristics were obtained using Pearson's correlation. The results show that the sex factor does not significantly influence BW, CC, AP, NP, HL, and HW (p≥0.05); likewise, the equation that best predicts the body weight of the guinea pigs was: BW = -530.50 + 21.98(CC) + 12.72(AP) + 10.16(NP) + 57.23(HW), with R2 = 84%. Pearson correlations between morphometric characteristics were of high magnitude, positive, and statistically significant (p<0.001). It is concluded that in conditions of the Peruvian highlands, the sex factor does not influence the morphometric characteristics. It is also possible to predict body weight from CC, AP, NP, and HW, and the correlations were high and positive.","PeriodicalId":36430,"journal":{"name":"Edelweiss Applied Science and Technology","volume":"11 11","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141822434","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The impact of environmental, social, and governance performance on financial performance: Evidence from Japanese companies","authors":"Aida Maria Ismail, Khairul Bariah Binti Azman","doi":"10.55214/25768484.v8i3.950","DOIUrl":"https://doi.org/10.55214/25768484.v8i3.950","url":null,"abstract":"This study examines the impact of environmental, social, and governance (ESG) performance on the financial performance of companies using the Stakeholder Theory. Sustainability is recognized as one of the most significant concepts for all nations and organizations worldwide. The Japanese government, its corporations, and its culture are not exempt from delivering their nation's sustainability goal with the utmost support. Their initiatives taken towards sustainability include introducing Society 5.0, the 'improved society' concept Japan has contemplated before the rest of the world. Society 5.0 for Sustainable Development Goals (SDGs), which originated in Japan, is an aspiring concept that views changes and challenges as opportunities and proceeds to associate them with medium-to long-term development, which leads to the resolution of global challenges. Financial performance focuses on accounting performance through the Return on Equity (ROE). The ESG scores and financial data of 351 listed companies in Japan from 2018 to 2022 were collected from the Thomson Reuters Eikon data stream to study its impact. The regression analysis shows that all environmental performance (EP), social performance (SP), and governance performance (GP) positively and significantly affect profitability, or the Return of Equity (ROE). Meanwhile, the control variable, firm size (SIZE), does not support the study. The findings also found that all ESG performances positively correlate with each other. These results highlight the importance of ESG policy adoption by companies to improve their financial performance. The study’s contributions add value to Japan’s industry practitioners and stakeholders and highlight the importance of ESG to their nation.","PeriodicalId":36430,"journal":{"name":"Edelweiss Applied Science and Technology","volume":"10 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141018151","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"SMEs in Indonesia: How do market and entrepreneurial approaches shape dynamic capabilities and performance?","authors":"Yohanes Fery Cahaya, Johan Hendri Prasetyo, Ch Endah Winarti, Annathasia Puji Erasashanti, Hikmah Abdul Rachman","doi":"10.55214/25768484.v8i3.923","DOIUrl":"https://doi.org/10.55214/25768484.v8i3.923","url":null,"abstract":"This study delves into the impact of market orientation and entrepreneurship on dynamic capabilities and SME performance within the Culinary SME sector of West Java Province, Indonesia. The study utilized a quantitative-causal research methodology to gather data from a sample of 420 Culinary (SMEs) that had been operating for a minimum of 5 years. The acquired data was then subjected to analysis using Partial Least Squares Structural Equation Modelling (PLS-SEM). The findings indicate significant potential for market orientation and entrepreneurship to bolster dynamic capabilities and subsequently enhance SME performance. Furthermore, the study found that dynamic capabilities positively influence SME performance. Importantly, the study identifies an indirect pathway through which market orientation and entrepreneurship can augment SME performance by leveraging dynamic capabilities as a mediator. Practical implications emphasize the critical importance for Culinary SMEs to cultivate robust market orientation, harness entrepreneurial potential for strategic risk-taking and innovation, and fortify dynamic capabilities. Strengthening these facets enables SMEs to effectively translate market insights into actionable strategies, thereby fostering sustainable growth in a competitive business landscape. In essence, this research provides valuable insights into the interplay of market orientation, entrepreneurship, dynamic capabilities, and SME performance, offering actionable guidance for Culinary SMEs in West Java Province and beyond to navigate challenges and capitalize on opportunities for sustainable development and competitiveness.","PeriodicalId":36430,"journal":{"name":"Edelweiss Applied Science and Technology","volume":"21 18","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140674940","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Corporate governance and Indonesian state-owned companies’ performance: Agency and institutional perspectives","authors":"Nathan Junino Jahja, Nor Farizal Mohammed, Norziana Lokman","doi":"10.55214/25768484.v8i3.867","DOIUrl":"https://doi.org/10.55214/25768484.v8i3.867","url":null,"abstract":"The purpose of this study is to investigate the relationship between corporate governance practices and Indonesia’s SOEs' performance. State-owned enterprises (SOEs) are often criticized for underperformance and political manipulation, raising doubts about the efficiency of implemented corporate governance mechanisms. Additionally, this research examines the moderating role of board diversity on the relationship between good corporate governance (GCG) and performance. This study adopted a quantitative method to analyze secondary data from SOE’s financial statements from 2012 to 2019. The key independent variable is the GCG score, while return on assets is the dependent variable. The regression model incorporates managerial diversion variables and control variables. Surprisingly, the results found that corporate governance practices adversely affect the performance of Indonesian SOEs, particularly when board members have political affiliations. Institutional theory explains the negative relationship between the implementation of GCG and the performance of state-owned companies from coercive and mimetic perspectives. The phenomenon often happens in a developing country when a new system is adopted without fully understanding its mission. Additionally, the significant role of the Board of Commissioners' political connection as a moderating variable supports the conjecture of the managerial diversion perspective. This research contributes empirical insights for SOE stakeholders about corporate governance implementation and the performance of Indonesia's SOEs from the perspective of an emerging economy. The paper contributes novel views to agency and institutional theory for developing countries.","PeriodicalId":36430,"journal":{"name":"Edelweiss Applied Science and Technology","volume":"54 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140742947","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Examining government officials’ perceived risk management and internal control in combating fraud in the public sector","authors":"Azleen Ilias, Nasrudin Baidi, Erlane K. Ghani, Kamaruzzaman Mohammad, Akrom Omonov","doi":"10.55214/25768484.v8i3.804","DOIUrl":"https://doi.org/10.55214/25768484.v8i3.804","url":null,"abstract":"This study aims to examine the perception of risk management and internal control in the public sector, specifically concerning preventing fraud. Specifically, this study examines the various aspects of fraud prevention among employees in the public sector, including goal formulation, internal environment, and communication of information, risk response, monitoring, risk assessment, and control actions. A total of 537 individuals working in the procurement and finance departments of federal ministries participated in a questionnaire survey conducted using the Committee of Sponsoring Organizations framework and focused on fraud prevention. This study shows that risk assessment, control actions, and information and communication exert a favorable influence on the prevention of fraudulent activities. This study revealed that risk assessment, control actions, and information and communication exert a favorable influence on the prevention of fraudulent activities. This study can contribute to the government's efforts in improving risk management, addressing corruption, and advancing the Sustainable Development Goal (SDG) 12 and 16 initiatives.","PeriodicalId":36430,"journal":{"name":"Edelweiss Applied Science and Technology","volume":"41 10","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140229316","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}