Volume 10 Issue 10 by INTERNATIONAL JOURNAL OF ENGINEERING TECHNOLOGIES AND MANAGEMENT RESEARCH I J E T M R JOURNAL
Granthaalayah Publications and Printers, 2023
The utilization of nano-CaCO 3 is currently growing very fast in various fields. The research aim... more The utilization of nano-CaCO 3 is currently growing very fast in various fields. The research aims to produce and analyze the properties of nano-CaCO 3 from clamshells (Geloina sp.). The production of nan-CaCO 3 was done by the top-down process using high-energy milling. The clamshell (Geloina sp.) is the potential resource of nano-CaCO 3. The nano-CaCO 3 can be produced by the milling process. The main factor that affected the yield is the number of steel balls, while the speed of rotation and number of cycles have a negative effect. The EDX analysis shows that the nano-CaCO 3 has high purity. The nano-CaCO 3 from clamshell (Geloine sp.) can be applicated as a drug delivery system and catalyst.
Granthaalayah Publications and Printers, 2023
Cyber Crime, is a criminal phenomenon in the form of actions carried out in cyberspace which has ... more Cyber Crime, is a criminal phenomenon in the form of actions carried out in cyberspace which has made the public aware of the need for legal instruments that can be used as legal rules in dealing with cybercrime cases. Efforts to overcome cyber crime include enforcing cyber law as a defense against cyber crime. The development of technology which is increasingly sophisticated and increasingly pervasive in people's life activities amidst the increasingly widespread flow of globalization has resulted in positive and negative influences for technology users. Students, as part of society, also use IT in all their activities, from increasing their knowledge, entertainment, making friends and so on. In teaching and learning activities on campus, students utilize various technologies in the digital era to search for all information related to the assignments given by their lecturers, unlimited access to IT such as the use of contemporary communication models such as Line, WhatsApp, Twitter, Facebook, Instagram, email, video calls, voice calls, chats and so on, sometimes make students forget themselves and think that IT is an inseparable part of their world, sometimes they don't even care about the legal sanctions given by the campus or the state if they complain, babble, insult, Reproaches expressed on social media will have a negative impact. The lack of cyber law learning in students' learning lives means that interactive learning support media is needed which can encourage students to study cyber law by creating an interactive multimedia-based E-Module which can be accessed by students online using the Multimedia Development Life Cycle (MDLC) design method. Testing the application by distributing questionnaires to students who received the Cyber Low course. With this research, it is expected to be able to increase students understanding of cyber law.
Granthaalayah Publications and Printers, 2023
In the pursuit of developing a mullite-carbon refractory ceramic composite with optimum physical ... more In the pursuit of developing a mullite-carbon refractory ceramic composite with optimum physical and mechanical properties modified with additives, experimental studies were carried out using local materials from Nigeria's south-south and southwest regions. Kaolin clay was crushed to 2 mm and ball-milled into powder. Ground kaolin was homogeneously blended with graphite using a ball mill and sieved through a 300μm electric sieve. The homogeneous mix was combined with predetermined Magnesium Oxide proportions, compacted, and fired at 1300 °C, 1400 °C, and 1500 °C. Extensive tests followed, including X-ray diffraction (XRD) for phase analysis, ultra-high-resolution field emission scanning electron microscopy equipped with energy-dispersive spectroscopy (SEM-EDS) for microstructural morphology, and assessments of mechanical and physical properties. Findings indicated that additive inclusion spurred mullite phase development between 1300°C and 1500°C, enhancing their physico-mechanical properties. Among the samples, Sample R composed of 15% MgO, 65% kaolin, and 20% graphite, fired at 1500°C, displayed optimal physico-mechanical properties (95.8%) and favorable mullite formation (46.0%) was achieved.
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Volume 10 Issue 10 by INTERNATIONAL JOURNAL OF ENGINEERING TECHNOLOGIES AND MANAGEMENT RESEARCH I J E T M R JOURNAL