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All Journal Jurnal Matematika Kontinu: Jurnal Penelitian Didaktik Matematika Telematika BAREKENG: Jurnal Ilmu Matematika dan Terapan JTAM (Jurnal Teori dan Aplikasi Matematika) Vygotsky: Jurnal Pendidikan Matematika dan Matematika Square : Journal of Mathematics and Mathematics Education Journal of Fundamental Mathematics and Applications (JFMA) International Journal of Computing Science and Applied Mathematics-IJCSAM
Norasia, Yolanda
Universitas Islam Negeri Walisongo
Humanities Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Energy Engineering Languange, Linguistic, Communication & Media Mathematics Mechanical Engineering Physics Transportation

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Laminar Viscous Fluid Flow with Micro-rotation Capabilities through Cylindrical Surface Norasia, Yolanda; Tafrikan, Mohamad; Ghani, Mohammad
JTAM (Jurnal Teori dan Aplikasi Matematika) Vol 6, No 4 (2022): October
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jtam.v6i4.9158

Abstract

Viscous fluid can micro-rotate due to collisions between particles that affect viscous fluid's velocity and temperature.This study aims to determine the effect of viscosity parameters, micro-rotation materials, and heat sources on fluid velocity and temperature. The model of the laminar flow equation for viscous fluid in this study uses the laws of physics, namely, the law of conservation of mass, Newton II, and Thermodynamics I. The formed dimensional equations are converted into non-dimensional equations by using non-dimensional variables. Then, the non-dimensional equations are converted into similarity equations using stream function and similarity variables. The formed similarity equation was solved numerically by using the Gauss-Seidel method. The results of this study indicate that the velocity and temperature of the viscous fluid flow can be influenced by the parameters of viscosity, micro-rotation material, and heat source. The presence of collisions between particles causes heat to cause an increase in the variance of viscosity parameters, micro-rotation materials, and heat sources. Therefore, the viscous fluid's velocity decreases and its temperature increases. 
Analisis Kemampuan Komunikasi Matematis Siswa dalam Menyelesaikan Permasalahan Kontekstual Berdasarkan Gender Kelas VIII-G SMPN 23 Semarang Rachmawati, Dewi; Rohman, Ahmad Aunur; Norasia, Yolanda
Square : Journal of Mathematics and Mathematics Education Vol. 7 No. 1 (2025)
Publisher : UIN Walisongo Semarang

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Abstract

Mathematical communication skills are the basic ability to formulate initial concepts in solving mathematical problems. The level of mathematical communication skills can be influenced by various factors, one of which is gender. This study used a qualitative method through a descriptive approach, with the aim of describing the mathematical communication skills of class VIII-G students at SMPN 23 Semarang based on gender. Data were obtained through tests, questionnaires, and interviews. The results showed that students in the masculine, feminine, and androgynous categories mastered mathematical communication skills. Students with masculine and androgynous genders had the same understanding of all mathematical communication skill indicators used, while students with feminine genders failed to master any of the mathematical communication skill indicators used. The difference in mastery of mathematical communication skill indicators between masculine and androgynous students and feminine students lies in forming mathematical models through pictorial illustrations.
Optimal Control of HIV-1 Spread in Combination with Nutritional Status and ARV-Treatment Yolanda Norasia; Zulaikha Zulaikha; Mohammad Ghani; Denis Sospeter Mukama
(IJCSAM) International Journal of Computing Science and Applied Mathematics Vol. 8 No. 2 (2022)
Publisher : LPPM Institut Teknologi Sepuluh Nopember

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Abstract

HIV-1 is a virulent virus, it has the ability to easily spread the virus. This study aims to optimally control the spread of the HIV-1 virus with SIPA (Susceptible-Infection-PreAIDSAIDS) model by using nutritional status and ARV-treatment. Assessment of nutritional status is carried out on people with HIV/AIDS (ODHA). The results showed that the control in the form of nutritional status and ARV-treatment was able to reduce the infected subpopulation. Routine assessment of nutritional status can form balanced nutrition for ODHA. ARV-treatment works by reducing the amount of HIV viral load, so that HIV infection cannot cause disorders of the immune system.
Co-Authors Anggriani, Indira Anggriani, Indira Asmianto Asmianto Basuki Widodo Charisma Juni Kumalasari Denis Sospeter Mukama Denis Sospeter Mukama Dewi Rachmawati Dian Ayu Merdekawati Dieky Adzkiya Dinni Rahma Oktaviani Endah Rokhmati Merdika Putri Ghani, Mohammad Indira Anggriani Kamaluddin, Bhamakerti Hafiz Lestari, Jepi Mohamad Tafrikan Mohamad Tafrikan Mohamad Tafrikan Mohammad Ghani Mohammad Ghani Nisa, Ajeng Oxa Putri, Devi Marita Rohman, Ahmad Aunur Rois, Muhammad Abdurrahman Sumardi, Sitti Rosnafi'an Tafrikan, Mohamad Tafrikan, Mohamad Zulaikha Zulaikha Zulaikha Zulaikha