MATTER: International Journal of Science and Technology <div id="focusAndScope"> <p><strong>ISSN 2454-5880</strong></p> </div> Global Research & Development Services Publishing en-US MATTER: International Journal of Science and Technology 2454-5880 <p><strong>Copyright of Published Articles</strong></p> <p>Author(s) retain the article copyright and publishing rights without any restrictions.</p> <p><a href=""><img src="" alt="Creative Commons License" /></a><br />All published work is licensed under a <a href="">Creative Commons Attribution-NonCommercial 4.0 International License</a>.</p> FEM ANALYSIS OF WOODEN JOINTS AND WOODEN STRUCTURE OF THE ELECTRIC CAR’S FRAME <p>The paper covers the topic of FEM analysis (Finite Element Method) of selected types of wood joints and the analysis of the wooden structure, the electric car in the electric car of the frame of the Silesian Greenpower team. The main assumption of the work was to analyze the displacements and stresses in the structure of the frame that result from the actual load on the structure. Selected wooden joints were analyzed in FEM analysis. The paper also presents various techniques for modelling connections between elements, such as connection by nail or screw, cohesive contact, or the MPC beam element considering three different materials: oak, pine, and plywood. The aim of the study and the final stage was the FEM analysis of the wooden structure, the car frame. The actual support points for the frame and the actual loads on the structure resulting from the mass of components such as the driver, batteries, and motor were taken into account. The distribution and values of stresses in the structure were analysed, as well as the total displacements resulting from the loading of the mass elements, as well as the centrifugal force acting on the car during driving in a corner.</p> Alicja Żur Paweł Żur Andrzej Baier Copyright (c) 2022 Alicja Żur, Paweł Żur, Andrzej Baier 2022-03-15 2022-03-15 8 1 01 16 10.20319/mijst.2022.81.0116 OPTIMIZATION OF SURFACE ROUGHNESS AND CONE ANGLE IN AWJ MACHINING OF AIRCRAFT MATERIAL USING RSM <p>Abrasive water jet machining (AWJM) of aircraft material is a difficult process using conventional machines. Machined parts of Inconel 718, a nickel-based alloy (aircraft material) are widely used in the aerospace industries. However, these alloys are expensive and difficult to machine. The objective of this article is to optimize AWJM process parameters. Response Surface Methodology (RSM) is planned with travel speed, abrasive flow rate, and stand-off distance as inputs. The response models of surface finish and cone angle show the correlation coefficient `R<sup>2</sup>` of 96.94% and 96.67%, respectively. 3D surface plot with analysis of variance (ANOVA) is presented to distinguish significant AWJM parameters. The work revealed that travel speed is a significant factor for surface finish and cone angle. Multi-response optimization results in the best optimal values of traverse speed; abrasive flow rate and standoff distance are 200 mm/min, 460 g/min, and 4 mm respectively. This research outcome showed more than 90 % of accuracy for both the responses. This article is helpful to the AWJM centers to select optimal machining parameters for achieving the desirability in the machining of Inconel 718. The obtained novel results confirmed that such a technique can be implemented to identify optimal parameters in the machining of different materials.</p> Yogesh V Deshpande P S Barve T A Madankar S S Pund Copyright (c) 2022 Yogesh V. Deshpande, P. S. Barve, T. A. Madankar , S. S. Pund 2022-03-15 2022-03-15 8 1 17 32 10.20319/mijst.2022.81.1732 INNOVATION AND CHANGES IN THE DIDACTIC SPACE <p>In Italy, the theme of the school, and more generally of education in the broadest sense, already in turmoil before the epidemic, seems to be exploding today in all its urgency, both because of the instances - above all pedagogical - of transformation brought by the pandemic itself (which from this point of view has acted as a catalyst), and because of the uncertain consequences of a building heritage that now largely needs to be restored, because it is architecturally and technologically inadequate. This has led to the structuring of a literature review that takes into account two main time spans: on the one hand, that of the 1960s-1970s (often called "the golden age of school"), investigated through the international architectural journals of that period, where the typology-technology problem emerges strongly; on the other hand, the selection (through Scopus, WoS, etc.) of current or recent studies and pedagogical experiences related to new technologies. The criterion for the choice of case studies is therefore based on their propulsive potential in relation to today's transformation needs, seeking to consider the school as an organism and not merely as a set of functional parts (as much current literature does).</p> Francesco Martinazzo Copyright (c) 2022 Francesco Martinazzo 2022-03-15 2022-03-15 8 1 33 51 10.20319/mijst.2022.81.3351 INFLUENCER MARKETING AS EXPLOITATION OF CUSTOMERS FOR BUSINESS PERFORMANCE <p>Influencer marketing has become inherent for every business that wants to thrive, using social media as a marketing communication strategy. In Nigeria, entrepreneurship is fraught with many challenges which entrepreneurs are facing in the course of doing business. As a result of these challenges, stimulating customer interest is becoming of utmost importance. This study investigates influencer marketing as a marketing communication tool to encourage customer patronage. The research consists of customers that buy and patronized small and medium scale enterprises (SMEs) firms within Kwara State in Nigeria. The questionnaire was conveniently distributed among 300 participants, but 268 was used for the study. Regression analysis was used to survey the data collected. The findings revealed that influencer marketing has a positive significant impact on business performance. Further findings showed that social influence and e-WOM play an important role in stimulating customer interest, desire, willingness, and readiness to buy and patronize products or services. It was therefore recommended that influencer marketing should be explored by the entrepreneur due to its potential benefit and the consequence of its absence on the business performance.</p> Abdulfatai Idomi Ishola Copyright (c) 2022 Abdulfatai Idomi Ishola 2022-03-15 2022-03-15 8 1 52 70 10.20319/mijst.2022.81.5270 MICROBLOGGING MARKETING: A PRODUCT OF THE FOURTH INDUSTRIAL REVOLUTION <p>Microblogging is a new and socialized media form born of the fourth industrial revolution. In every sense, aggressive development has far-reaching effects on humanity. Stakeholders, non-profit groups, and state and non-state actors are all interested in internet marketing. A vast number of social websites, such as Twitter, Tumblr, Plurk, and others, have recently gained popularity among normal internet users. This study sought to illustrate how microblogging has driven the market to expand and established tactics in such a period. The study used an exploratory research approach with a focus on literature in the fields of business administration, entrepreneurship, internet academic journal, blogs, government publications and records, a variety of research reports, and individual research. The study established that users relied on microblogging to share different types of information through frequent and lengthy conversions and microblogging marketing is an aggressive alternative source of business growth. Therefore, Microblogging marketing has contributed to global business and supported marketing strategy. The study suggested that microblogging marketing should be users’ friendly, actively forward users' objective quality evaluation products, and create a harmonious and equitable social media environment. Further research should be conducted to determine how corporate microblogging might benefit workers at work and business world.</p> Ajayi Olalekan Ezekiel Copyright (c) 2022 2022-04-22 2022-04-22 8 1 71 88 10.20319/mijst.2022.81.7188 EXPLORING INNOVATIVE SCALE-UP SOLUTIONS FOR LIGHT INTEGRATION IN TEXTILES USING ELECTROLUMINESCENT FIBERS <p>In this work, we present our results on one-dimensional (1-D) light-emitting devices and their textile integration. Indeed, light integration in textiles is very challenging and thanks to their unique 1-D configuration for possible miniaturization in the lateral direction, light-emitting fibres are promising since they present higher flexibility and adaptability than planar devices and can be easily integrated into textile processes. Therefore, this work is dedicated to studying and optimising these structures to achieve flexibility, stability, suitability for large-scale production and their integration into textiles. 1-D light-emitting devices consisting of electroluminescent (EL) fibres with different structures will be studied. Although the dip-coating method presents several challenges, it turns out that this method is the most promising for the scalability of the process.</p> Nabiha Ben Sedrine Amanda Melo Albertino Goth Nelson Duraes Ricardo Silva Pedro Silva Paulo Mendes Copyright (c) 2022 2022-05-12 2022-05-12 8 1 89 101 10.20319/mijst.2022.81.89101