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All Journal Journal of the Indonesian Mathematical Society Jurnal Ilmiah Pengabdian Masyarakat Bidang Kesehatan
Khalid, Asma
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Dentistry Health Professions Mathematics Medicine & Pharmacology Nursing Public Health

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Numerical Solutions for Convective Boundary Layer Flow of Micropolar Jeffrey Fluid with Prescribe Wall Temperature Rawi, Noraihan Afiqah; Mohd Zin, Nor Athirah; Khalid, Asma; Mohd Kasim, Abdul Rahman; Mat Isa, Zaiton; Shafie, Sharidan
Journal of the Indonesian Mathematical Society VOLUME 26 NUMBER 3 (NOVEMBER 2020)
Publisher : IndoMS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22342/jims.26.3.553.286-298

Abstract

The steady two dimensional convective boundary layer flow of micropolar Jeffrey fluid past a permeable stretching sheet is studied in this paper. The governing boundary layer equation in the form of partial differential equations are transformed into nonlinear coupled ordinary differential equations and solved numerically using an implicit finite-difference scheme known as Keller-box method. The effects of Prandtl number, Deborah number, and material parameter with the boundary condition for microrotation, n = 0 (strong concentration of microelements) on the velocity, microrotation, temperature profiles as well as the skin friction and heat transfer coefficients are presented and discussed. An excellent agreement is observed between the present and earlier published results for some special cases. The results revealed that, the effect of Deborah number and stretching parameter are increased the heat transfer coefficient while the opposite trend is observed for the effects of material and velocity slip parameters. It was also observed that, the values of skin friction increased with the increment on the values of all studied parameters.
Campus Safety Riding: Establishing A Safe Campus Traffic Zone Rimawati, Eti; Nugroho, Bayu Yoni Setyo; Nurmandhani, Ririn; Fani, Tiara; Suhat; Khalid, Asma
Jurnal Ilmiah Pengabdian Masyarakat Bidang Kesehatan (Abdigermas) Vol. 3 No. 2 (2025): Jurnal Ilmiah Pengabdian Kepada Masyarakat Bidang Kesehatan (Abdigermas)
Publisher : CV Media Inti Teknologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58723/abdigermas.v3i2.436

Abstract

Traffic-related accidents involving university students, particularly those aged 18–25, have become a growing concern in Indonesia, with many incidents occurring due to inadequate infrastructure and lack of traffic discipline in densely populated campus environments. This community service program was initiated by Universitas Dian Nuswantoro (UDINUS) in Semarang to address these challenges through the establishment of a “Campus Safety Riding Zone.” The program aimed to increase road safety awareness, promote safe behavior among students and residents, and improve campus-area traffic infrastructure. Activities included coordination with local authorities, painting red-marked safe zones and zebra crossings, installing speed limit signs (30 km/h), and distributing an educational pocketbook titled “Crossing Etiquette on Campus” The intervention area, located on Nakula I Street, was selected due to its high traffic volume between the subdistrict office and UDINUS Building A. Post-intervention observations indicated that drivers generally reduced their speed when entering the safety zone, although issues like improper parking persisted. The initiative demonstrated that a combination of infrastructure enhancement, community education, and multi-stakeholder collaboration can effectively foster a safer traffic culture in university environments. This model offers a replicable framework for other higher education institutions to support student and pedestrian safety through community-based strategies.
Co-Authors Bayu, Yoni Setyo Nugroho Eti Rimawati Mat Isa, Zaiton Mohd Kasim, Abdul Rahman Mohd Zin, Nor Athirah Nurmandhani, Ririn Rawi, Noraihan Afiqah Sharidan Shafie Suhat Suhat Tiara Fani