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MODELING AND SIMULATION OF TRAFFIC FLOWS ON INCLINED ROAD DURING EVACUATION PROCESS OF THE VOLCANO DISASTER WITH FINITE DIFFERENCE METHOD Richasanty Septima; Said Munzir; Salmawaty Salmawaty
Jurnal Natural Volume 17, Number 1, March 2017
Publisher : Universitas Syiah Kuala

The research in this thesis was done to examine the model of traffic flow of volcanic disaster evacuation path for uphill and downhill roads. The assessment was focused on the area of disaster evacuation path from the Pante Raya Bener Meriah intersection to Takengon. This model is assessed for two different types of time when which a disaster occurs; the disaster occurred at night and the disaster occurred during the day, especially during peak hours (working hours). The model was developed with attention to the exixtence of inflow and outflow along the evacuation route. Furthermore, the model obtained is solved numerically by using finite difference method. The chosen approach of this method is upwind scheme with time and space steps using forward difference and backward difference. The solution of this model in the form of simulated vehicle density along evacuation pathways. The research conducted is in the form of a model of traffic flow on evacuation paths and restricted to the inflow and outflow without alternative path as well as the conditions of the road which are uphill and downhill, showed a high density of vehicles either at night or during the day. Uphill road conditions resulted in decreased vehicle speed and vehicle density will increase, while downhill road conditions resulted in increased vehicle speed and vehicle density will decrease, meaning that the road conditions which are uphill and downhill will greatly affect the process of evacuation. Degree vehicles of evacuation efficiency occuring at night without an alternative pathway produces a high efficiency so that it can be interpreted that the evacuation process in the evening was successful and runs better than the evacuation process during the day, and this is caused by the existence of vehicles on the road evacuation process started thus affecting the efficiency levels. Keywords : Traffic flows, finite difference method, upwind scheme method, forward difference, backward difference, greenshield method, uphill road, downhill road.

PENGEMBANGAN MODUL DENGAN PEMBELAJARAN KONTEKSTUAL UNTUK MENINGKATKAN MOTIVASI DAN HASIL BELAJAR SISWA PADA MATERI SISTEM KOLOID Sri Ismulyati; Ibnu Khaldun; Said Munzir
Jurnal Pendidikan Sains Indonesia Vol 3, No 1 (2015): April 2015
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (97.19 KB)

Pengembangan modul sistem koloid dengan pembelajaran kontekstual bertujuan untuk menghasilkan produk yang dapat meningkatkan motivasi dan hasil belajar siswa. Metode penelitian ini yaitu metode eksprimen (true experimental design). Subyek penelitian adalah siswa kelas XI IPA SMAN 1 Darul Imarah. Untuk sumber data dan sampel penelitian diambil siswa kelas IPA-1 dan kelas XI IPA-4 berjumlah 68 siswa, dan guru-guru 5 orang. Teknik pengumpulan data menggunakan tes soal pretes-postest, angket modul, dan angket motivasi. Hasil reviev dari para ahli tentang sistematika penulisan, bahasa, isi, dan desain modul menyatakan bahwa modul sistem koloid dengan pembelajaran kontekstual yang disusun telah layak memenuhi aspek kelayakan baik dari segi teoritis maupun dari segi empiris, sedangkan untuk instrumen membutuhkan tahapan validasi oleh pakar dan hasil ujicoba pada sekolah yang sama dengan sekolah penelitian. Uji teknik independent sampel t-tes yaitu t hitung= -5,676 t tabel= -2,00. Uji Mann Witney mengalami peningkatan dengan perbedaan rata-rata yaitu dari 24,50 (kelas kontrol) menjadi 43,93 (kelas eksperimen). Motivasi dan hasil belajar siswa kelas eksperimen dengan menggunakan modul pembelajaran kontekstual pada materi sistem koloid lebih tinggi dibandingkan dengan motivasi kelas kontrol dengan penggunaan pembelajaran konvensional.

MODELING AND SIMULATION OF TRAFFIC FLOWS ON INCLINED ROAD DURING EVACUATION PROCESS OF THE VOLCANO DISASTER WITH FINITE DIFFERENCE METHOD Richasanty Septima; Said Munzir; Salmawaty Salmawaty
Jurnal Natural Volume 17, Number 1, March 2017
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jn.v17i1.6513

The research in this thesis was done to examine the model of traffic flow of volcanic disaster evacuation path for uphill and downhill roads. The assessment was focused on the area of disaster evacuation path from the Pante Raya Bener Meriah intersection to Takengon. This model is assessed for two different types of time when which a disaster occurs; the disaster occurred at night and the disaster occurred during the day, especially during peak hours (working hours). The model was developed with attention to the exixtence of inflow and outflow along the evacuation route. Furthermore, the model obtained is solved numerically by using finite difference method. The chosen approach of this method is upwind scheme with time and space steps using forward difference and backward difference. The solution of this model in the form of simulated vehicle density along evacuation pathways. The research conducted is in the form of a model of traffic flow on evacuation paths and restricted to the inflow and outflow without alternative path as well as the conditions of the road which are uphill and downhill, showed a high density of vehicles either at night or during the day. Uphill road conditions resulted in decreased vehicle speed and vehicle density will increase, while downhill road conditions resulted in increased vehicle speed and vehicle density will decrease, meaning that the road conditions which are uphill and downhill will greatly affect the process of evacuation. Degree vehicles of evacuation efficiency occuring at night without an alternative pathway produces a high efficiency so that it can be interpreted that the evacuation process in the evening was successful and runs better than the evacuation process during the day, and this is caused by the existence of vehicles on the road evacuation process started thus affecting the efficiency levels. Keywords : Traffic flows, finite difference method, upwind scheme method, forward difference, backward difference, greenshield method, uphill road, downhill road.

APLIKASI KONTROL OPTIMAL PADA MODEL DINAMIK PEROKOK DENGAN MELIBATKAN HARGA Marzuki, Marzuki; Munzir, Said; Zahnur, Zahnur
Jurnal Silogisme : Kajian Ilmu Matematika dan Pembelajarannya Vol 7, No 2 (2022): Desember
Publisher : Universitas Muhammadiyah Ponorogo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24269/silogisme.v7i2.5682

Penelitian ini membahas tentang simulasi kontrol optimal model dinamik perokok dengan melibatkan harga dan parameter fungsi dampak kenaikan harga. Pengaruh harga rokok terhadap pengurangan konsumsi rokok ditinjau melalui dua kasus yang berbeda yaitu kasus dengan fungsi dampak kenaikan harga secara linear dan logaritmik. Adapun tujuan dari penelitian ini yaitu mengembangkan model jumlah perokok dengan melibatkan harga rokok dan mendapatkan solusi optimum pada model jumlah perokok dengan meminimumkan jumlah perokok berat dan perokok kadang-kadang melalui kenaikan harga rokok. Model yang digunakan yaitu model jumlah perokok dengan dinamika akar kuadrat yang terdiri dari empat kompartemen, yakni perokok potensial (), perokok kadang-kadang (), perokok berat () dan mantan perokok (). Model ini menggunakan interaksi antara perokok potensial dan perokok berat dengan melibatkan harga rokok. Model dinamik perokok dengan fungsi kenaikan harga secara logaritmik lebih baik dalam mempertahan perokok berat dari pada model dengan fungsi linear, sedangkan model dinamik perokok dengan fungsi linear lebih cepat dalam menurunkan jumlah perokok berat daripada fungsi logarithmic. Kenaikan harga yang ideal untuk menurunkan jumlah perokok di Indonesia adalah 66,67%.

The student involvement in view of mathematical problem solving ability Fitra, Rifka Yani; Munzir, Said; Ansari, Bansu Irianto
International Journal of Trends in Mathematics Education Research Vol 6, No 2 (2023)
Publisher : SAINTIS Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33122/ijtmer.v6i2.221

Students are still less involved in the teaching and learning process in class in mathematics. Lack of student involvement resulted in students' problem-solving abilities being weak. Constraints faced by students included difficulties in building plans, errors in operationalizing plans, and wrong conclusions. The purpose of this study was to determine student involvement in terms of students' mathematical problem-solving abilities in mathematics. This study uses a descriptive qualitative research approach. The subjects in this study were 12 students of class XII IPA-2 at MAN 4 North Aceh. Data collection techniques used in this study were observation, interviews and documentation. Data analysis techniques using data reduction, data presentation, and drawing conclusions. The results of the study show that in general high problem-solving abilities are also accompanied by high involvement, and vice versa. However, students in the high group have not been involved in finding answers, exploring variations and sorting information, and making inductions. Medium group students have not been involved in classifying, exploring variations and expressing in their own words and finding answers, sorting information and making inductions. Meanwhile, students in the low group were only able to clarify, associate and generalize, use previous knowledge, create mathematical objects and provide examples.

Kemampuan Spasial Siswa Di Daerah Pedesaan Ditinjau Dari Perbedaan Gender Erfansyah, Muhammad; Munzir, Said; Johar, Rahmah
Jumper: Journal of Educational Multidisciplinary Research Vol 2 No 2 (2023): Jumper: Journal of Educational Multidisciplinary Research
Publisher : LSM Catimore dan Sahabat Jl. Paya Ilang/Pertamina Desa Lemah Burbana, Takengon, Aceh Tengah 24552

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56921/jumper.v2i2.82

Spatial ability is the ability to imagine, compare, predict, determine, construct, present, and find information from visual stimuli in terms of spatial context that involves manipulation and mental rotation. Students in rural and urban areas have different ways of looking at a problem, especially with regard to spatial. Many opinions state that there are similarities and differences between boys and girls in terms of spatial ability in urban areas, but there is no information about the conditions between male and female students in rural areas. This study aims to describe the spatial ability of junior high school students in rural areas in terms of gender differences. This research is a descriptive research with a qualitative approach. Taking research subjects using snowball sampling technique. The research subjects were six people in one of the junior high schools in Bener Meriah Regency, Aceh Province. Data was collected by means of tests and interviews. Data analysis used qualitative data analysis techniques, namely: data reduction, data presentation, and drawing conclusions. The results showed that the tendency of male students' spatial abilities included five abilities, namely spatial perception, spatial visualization, mental rotation, spatial relations, and spatial orientation, while female students only included four spatial abilities because female students did not meet the mental rotation indicators. In general, both male and female students have difficulty in solving problems related to spatial relations indicators. Therefore, in learning, teachers need to develop students' spatial abilities, especially those related to spatial relations in rural areas, as well as develop abilities with mental rotation indicators, especially for female students.

Analysis of Students' Errors on the Fraction Calculation Operations Problem Safriani, Wirda; Munzir, Said; Duskri, M; Maulidi, Ikhsan
Al-Jabar: Jurnal Pendidikan Matematika Vol 10 No 2 (2019): Al-Jabar: Jurnal Pendidikan Matematika
Publisher : Universitas Islam Raden Intan Lampung, INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/ajpm.v10i2.5224

Students' errors on fraction problems often occur, especially in fraction counting operations. This error shows that the ability of students who do not understand the fraction problems. To overcome these errors, attention from the teacher is needed so that mistakes can be resolved. The purpose of this study is to describe students' errors in the fraction counting operation problem on each indicator, which is related to converting mixed fractions to ordinary fractions, determining fractions of value, and performing fraction addition and subtraction operations. This research is a qualitative descriptive study. The results showed that the majority of students experienced concept errors on each indicator requested in this study. Also, students make other mistakes such as mistakes of principle and carelessness.

Pedagogical scaffolding strategies for supporting students with mathematical learning difficulties in special education Anggreni, Melda; Anwar; Munzir, Said
Jurnal Elemen Vol 11 No 3 (2025): July
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/jel.v11i3.29996

Students with special needs, including those with speech impairments, often face challenges in learning mathematics and therefore require specialised strategies, such as scaffolding, to enhance their mathematical understanding. This study aimed to examine how scaffolding strategies support students with speech impairments in overcoming difficulties in learning mathematics in a special school setting. This qualitative case study involved one teacher and five students with speech impairments, selected through purposive sampling. Data were collected through observations, tests, interviews, and audio and video recordings. Data analysis was conducted in three stages: data reduction, data display, and conclusion drawing and verification. The findings show that the teacher’s scaffolding aligned with six aspects of the Mäkinen and Mäkinen framework: activation, presence, sensitivity, assistance, trust, and autonomy. Activation and assistance were the most strongly associated with improved conceptual understanding. The students demonstrated the ability to define, represent, and calculate the perimeter of squares and rectangles. Visual aids, concrete objects, and multimodal communication (oral, gestural, and sign language) enhanced understanding. Integrating visual, kinesthetic, and nonverbal strategies provides meaningful support for students with speech impairments, and the six-dimensional scaffolding framework serves as a practical guide for inclusive instructional design.

Teachers’ Perception About Islamic Values Integration Into Mathematics Learning Through Comics Putri, Rizqa; Johar, Rahma; Munzir, Said
Jurnal Ilmiah Peuradeun Vol. 10 No. 1 (2022): Jurnal Ilmiah Peuradeun
Publisher : SCAD Independent

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26811/peuradeun.v10i1.606

Aceh is one of 34 provinces in Indonesia that has a local education goal, that is, the education is implemented based on Islamic values. The integration of Islamic values into mathematics learning can be implemented by using learning media. This research is an early phase of developmental research. The purpose of this study was to investigate teachers’ perceptions of the integration of Islamic values into mathematics learning through comics. The participants were 40 junior high school mathematics teachers in Banda Aceh who join the PMRI workshop. Data were collected through an open-ended questionnaire consisting of 11 questions and then analyzed descriptively. The results showed that teachers (87.5%) believed that Islamic values and mathematics are integrated; moreover, mathematics teachers and religion teachers play a major role in teaching Islamic values. The majority of teachers (95%) believed that the knowledge of Islamic values influences the way they teach. However, more than half of teachers (62.5%) had never attended a workshop or seminar, or read articles that discuss the integration of Islamic values into mathematics learning through comics. The result of the study also showed that the mathematics comics in Islamic values were limited. Therefore, it is necessary to develop mathematics comics in Islamic values contexts.

Analisa Peningkatan Pelayanan Teller Dan Customer Service Bank Menggunakan Fuzzy Logic Said Munzir; Nur Aulia Zannah; Mahmudi
Limits: Journal of Mathematics and Its Applications Vol. 15 No. 2 (2018): Limits: Journal of Mathematics and Its Applications Volume 15 Nomor2 Edisi Nop
Publisher : Pusat Publikasi Ilmiah LPPM Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar

Pada sistem antrian nasabah bank konvesional, jika pembagian pelayan customer service dan teller tidak sesuai dengan nasabah yang mengantri mengakibatkan nasabah mendapatkan waktu menunggu yang sangat lama pada antrian yang sedang ramai. Dalam penelitian ini digunakan sistem fuzzy logic Sugeno untuk menganalisa banyak pelayan customer service dan banyak pelayan teller yang dibutuhkan sesuai dengan nasabah yang mengantri agar antrian nasabah lebih efisiensi. Sistem ini dirancang berdasarkan data nasabah yang mengantri pada setiap petugas pelayanan bank di BRI Cabang Banda Aceh, dari tanggal 2 sampai 31 Mei 2017, untuk berbagai kondisi kepadatan antrian yang terjadi. Dari sistem fuzzy yang dibangun dapat dianalisa banyak pelayan yang dibutuhkan sesuai dengan nasabah yang mengantri. Jika antrian di customer service 10 orang dan antrian di teller 61 orang maka banyak pelayan customer service yang dibutuhkan adalah 3 orang dan banyak pelayan teller yang dibutuhkan adalah 5 orang. Dengan banyak pelayan tersebut waktu yang dibutuhkan untuk melayani nasabah menggunakan sistem fuzzy logic Sugeno lebih cepat dari pada menggunakan sistem bank konvesional sehingga dapat mengurangi waktu menunggu di customer service sebesar 2.5% dan teller sebesar 27.78%. Hasil penelitian ini menunjukkan bahwa sistem fuzzy logic Sugeno mampu meningkatkan efisiensi antrian nasabah

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