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Mulkan Iskandar Nasution
Universitas Islam Negeri Sumatera Utara
Religion Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Social Sciences Other

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PENINGKATAN KREATIVITAS DAN HASIL BELAJAR MATEMATIKA MELALUI MODEL PEMBELAJARAN KOOPERATIF TIPE-STAD TERINTEGRASI ICT Rangkuti, Rizki Kurniawan; Ramli, Marwan; Nasution, Mulkan Iskandar
Al-Qalasadi : Jurnal Ilmiah Pendidikan Matematika Vol 3 No 1 (2019): Jurnal Ilmiah Pendidikan Matematika AL QALASADI
Publisher : Program Studi Pendidikan Matematika FTIK IAIN Langsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (190.393 KB)

Abstract

This research was conducted for 2 weeks in October at SMAN 11 Medan. This type of research is classroom action research. Before the action is taken first, the initial test is given. From the results of the initial test, the average student achievement was 20.62 with a classical completeness level of 0%. After giving action I to creative thinking tests the level of student study in classical is 15%, with an average grade achievement of 33.75. To test student learning outcomes the level of completeness obtained by students is 17.5%, with an average grade achievement of 26.42. After the implementation of action II for creative thinking tests the level of student study learning in classical is 85%, with an average achievement of 72.85 classes. To test student learning outcomes the level of completeness obtained by students is 90%, with an average grade achievement of 77.17. From this there is an increase in the level of classical completeness by 70% for students 'creative thinking and 72.5% for students' mathematics learning outcomes. Keywords: Mathematical Creativity, Mathematics Learning Outcomes, ICT Media, Cooperative Type-STAD Model.
RANCANG BANGUN SISTEM PEMBERIAN PAKAN DAN PENGATURAN pH AIR SECARA OTOMATIS PADABUDI DAYA IKAN LELE BERBASIS ATMEGA 16 MENGGUNAKAN MEDIA SMARTPHONE Mey Hajarini Siregar; Mulkan Iskandar Nasution
JISTech (Journal of Islamic Science and Technology) Vol 6, No 2 (2021)
Publisher : UIN Sumatera Utara Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30829/jistech.v6i2.11056

Abstract

Research has been carried out that aims (i) to design a feeding system and water pH regulation in catfish farming automatically, (ii) to assemble and build a control circuit with existing electronic components and sensors, (iii) to apply the IoT system to pH controller made to be controlled remotely. The tool is designed to control the pH of the water by means of circulation and for measuring the pH of the water in the catfish pond, it is carried out periodically using a pH sensor of type PH4502C. The system uses the RTC DS1307 digital clock module to determine the feeding schedule. Smartphone communication with control circuits uses internet media for data transfer and commands. Regulates feeding in catfish ponds and integrates with smartphones. The design of the feeding system and pH regulation in catfish farming automatically, the tool can provide feed and regulate the pH of the water automatically according to a schedule that has been set with the program that has been made. The circuit is assembled and built into the chassis by installing all electronic components and sensors on the PCB. Such as the process of automation of feeding using a servo motor, to measure the pH of the water using a pH sensor and setting the pH of the water using a water pump. By using the RTC as a digital clock to provide time information on the microcontroller so that the program can run according to what has been made. The application of the IoT system to the pH controller and feeding device that is made is controlled remotely. This tool is able to send information and commands from two directions using an adapter device from Wifi, namely the MCU Node. The MCU node is set to be related to the Wifi hotspot and connectivity with the Blynk server on the smartphone. Menu settings are made according to the required display, namely the pH display, buttons to activate and deactivate the water pump, feeding, and notifications if there is a change in the pH of the water or if the pH of the water is unstable
KAJIAN IKLIM BERDASARKAN KLASIFIKASI OLDEMAN DI KABUPATEN LANGKAT Mulkan Iskandar Nasution; Muhammad Nuh
JISTech (Journal of Islamic Science and Technology) Vol 3, No 2 (2018)
Publisher : UIN Sumatera Utara Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (958.242 KB) | DOI: 10.30829/jistech.v3i2.3157

Abstract

Perubahan iklim global sangat berdampak terhadap sektor pertanian. Kabupaten Langkat merupakan salah satu kabupaten yang merupakan sentra pangan di Sumatera Utara, yang mana sistem pertanaman khususnya padi sawah masih mengandalkan iklim dan cuaca. Diperlukan suatu peta iklim Oldeman yang menunjang dalam mengantisipasi adanya resiko iklim serta memberi rekomendasi pada pemerintah. Data yang digunakan untuk pengolahan adalah data curah hujan yang terdiri atas 23 pos pengamatan iklim dengan periode data umumnya berkisar antara tahun 1981-2017. Pemetaan menggunakan Software Sistem Informasi Geografis (SIG) Arc Map 10.2. Berdasarkan hasil analisis klasifikasi oldeman di Kabupaten Langkat menunjukkan bahwa wilayah tipe iklim A, dan B direkomendasikan untuk melakukan penanaman bahan pangan seperti padi sepanjang tahun, sedangkan pada wilayah  tipe C, D dan E hanya direkomendasikan melakukan penanaman  pada periode musim hujan dikarenakan ketersediaan air pada musim kemarau tidak memenuhi untuk melakukan penanaman.
THE USE OF COFFEE HUSK FIBER IN THE MAKING OF POLYMER CONCRETE WITH POLYESTER RESIN AS A BINDER Awan Maghfirah; Heni Meilanda; Eddy Marlianto; Mulkan Iskandar Nasution
FISITEK: Jurnal Ilmu Fisika dan Teknologi Vol 3, No 2 (2019)
Publisher : Universitas Islam Negeri Sumatera Utara Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30821/fisitek.v3i2.6850

Abstract

Research of polymer concrete had been made by using sand, pumice, coffee shell fiber and polyester resin. Research had been done in order to get the best combination. Then, it has pressd by using Hot Press at temperature of 90°C for 30 minutes. The properties of polymer concrete has been analyzed that physical properties such as density, porosity, water absorbtion, mechanical properties, bending strength, compressive strength, tensile strength and photograph analysis by SEM-EDX. The result of research showed that the best combination based on test was sand 60 g, pumice, coffee shell fibe, and polyester resin with ratio of (8:2:30) gr that density 1,62 g/cm3; porosity 1.70%; water absorbtion 1.04%; bending strength 7.40 MPa; compressive strength 10.92 MPa; and tensile strength 4.13 MPa. Keywords: Coffee shell fiber, polymer concrete, pumice, and sand.
THE USE OF PALM OIL TRUNK POWDER AS FILLERS IN THE MAKING OF GYPSUM CEILING SHEETS WITH POLYURETHANE BINDER Rahmadhani Banurea; Mulkan Iskandar Nasution
FISITEK: Jurnal Ilmu Fisika dan Teknologi Vol 3, No 1 (2019)
Publisher : Universitas Islam Negeri Sumatera Utara Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30821/fisitek.v3i1.5512

Abstract

A study has been conducted on the effect of palm oil trunk powder as fillers in the making of gypsum ceiling sheets for physical, mechanical, and DTA properties. The type of adhesive used is a polyurethane binder. Palm oil trunk powder is varied in 5, 10, 15, 20, and 25 g. The results showed that the physical properties (density of 1.6 g/cm3 and water absorbency of 15.08%) in the composition of 5 grams of palm oil trunk powder were the best results. The higher the powder level the higher the density value but the lower the water absorbency. The results of the physical properties test still meet the standards of SNI 03-2105 1996 and are still above the physical properties of the Jaya Board gypsum ceiling. The results of mechanical test (impact test 2.0 x 10-4 J/mm2, tensile test 305.8 kPa, flexural strength test/MOE 7233.8 kg/cm2, and fracture strength test/MOR 13.44 MPa) were the best results and at composition of 25:25:15. This composition is the most homogeneous composition so that its mechanical properties are optimum. Keywords: ceiling sheets, palm oil trunk powder, and polyurethane.
PREPARATION AND CHARACTERIZATION OF POLYMER CONCRETE USING PUMICE AGGREGATE AND COFFEE HUSK FIBER AS A FILLER Awan Maghfirah; Eddy Marlianto; Mulkan Iskandar Nasution; Putri Mila Senda Sitorus
FISITEK: Jurnal Ilmu Fisika dan Teknologi Vol 2, No 2 (2018)
Publisher : Universitas Islam Negeri Sumatera Utara Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (845.169 KB) | DOI: 10.30821/fisitek.v2i2.1806

Abstract

Research has been conducted on the preparation and characterization of polymer concrete with certain compositions of sand, pumice, coffee husk fiber, and epoxy resin to get the best mixing composition. All compositions were processed using a hot press machine at a temperature of 90 °C for 20 minutes. The results showed that polymer concrete with optimum characteristics is produced in the mixing composition of sand, pumice, coffee husk fiber, and epoxy resin of 60:14:6:20 g. In this condition, the density is 1.21 g/cm3, porosity is 8.3%, water absorption is 6.81%, flexural strength is 28.68 MPa, compressive strength is 7.67 MPa, and tensile strength is 3.98 MPa. SEM/EDS analysis shows that the addition of epoxy resin can improve the quality of polymer concrete. Keywords: Coffee husk fiber, epoxy resin, polymer concrete, and pumice.
PREPARATION AND CHARACTERIZATION OF POLYMER COMPOSITE TILE BASED ON BOILER ASH WASTE FROM PALM OIL INDUSTRY AND FIBER FROM WASTE TIRE REINFORCED BY ASPHALT Awan Maghfirah; Anwar Dharma Sembiring; Mulkan Iskandar Nst
FISITEK: Jurnal Ilmu Fisika dan Teknologi Vol 2, No 1 (2018)
Publisher : Universitas Islam Negeri Sumatera Utara Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (405.64 KB) | DOI: 10.30821/fisitek.v2i1.1542

Abstract

Polymer composite tile based on boiler ash waste from palm oil industry (ABKS) and fiber from waste tire reinforced by asphalt have been prepared through compression molding techniques. The raw materials consist of sand, ABKS, recycled tire fibers, asphalt, and epoxy resin with variation of ABKS and recycled tire fibers composition by 20%:0%, 18%:2%, 16%:4%, 14%:6%, 12%:8%, and 10%:10%. The characterization performed includes: physical properties (density and water absorption), mechanical properties (compressive strength, impact strength, and flexural strength), and thermal properties (DTA, Differential Thermal Analysis). The test results showed that sample with the optimum composition of sand, ABKS, recycled tire fibers, asphalt, and epoxy resin of 55%: 12%: 8%: 10%: 15% had the highest density value of 1.64 grams/cm3, water absorption of 1.72%, impact test value of 77.68 kJ/m2, bending strength value of 19.373 MPa, and DTA temperature of 360 ºC. These results meet SNI standards for existing tiles and can be used as an alternative tile materials which is affordable and environmentally friendlyKeywords: Boiler ash waste from palm oil industry (ABKS), polymer composite tile, and recycled tire fibers
THE DESIGN OF TOOLS AND LOCATION DETERMINATION FOR THE VISUALLY IMPAIRED USES A MICROCONTROLLER-BASED ULTRASONIC SENSOR Mulkan Iskandar Nasution; Syahrul Ardiansyah
FISITEK: Jurnal Ilmu Fisika dan Teknologi Vol 4, No 1 (2020)
Publisher : Universitas Islam Negeri Sumatera Utara Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30821/fisitek.v4i1.8068

Abstract

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Meningkatkan Kesehatan Masyarakat Dengan Kegiatan Senam Pagi Di Desa Cinta Makmur Lisdiana Lisdiana; Khorunnisa Siregar; Rika Lestari; Mulkan Iskandar Nasution
Riyadhoh : Jurnal Pendidikan Olahraga Vol 4, No 2 (2021): Riyadhoh : Jurnal Pendidikan Olahraga
Publisher : Universitas Islam Kalimantan Muhammad Arsyad Al Banjari

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31602/rjpo.v4i2.5421

Abstract

Senam adalah latihan tubuh yang dipilih dan diciptakan dengan sengaja dan berencana, disusun secara sistematik dengan tujuan membentuk dan mengembangkan keseluruhan yang harmonis. Senam merupakan salah satu olahraga populer di masyarakat. Hasil dari kegiatan senam pagi pada bidang kesehatan masyarakat yang dilakukan mahasiswa KKN-DR Kelompok 99 yang telah dilaksanakan pada hari minggu tanggal 25 juli 2021 di Desa Cinta Makmur, Kecamatan Panai hulu, Kabupaten Labuhan Batu. Menjaga kesehatan jasmani sangatlah penting bagi manusia, terlebih lagi dimasa pandemi covid-19 ini. Dengan melakukan kegiatan senam pagi dapat memberikan manfaat yang baik bagi tubuh manusia dan merupakan salah satu cara kita menjaga daya imun agar tetap kuat dan terhindar dari berbagai virus termasuk virus covid-19 . Seperti yang sudah di lakukan masyarakat di Desa Cinta Makmur yang mengikuti kegiatan senam pagidan merasa lebih baik setelah melakukan senam pagi.
PENINGKATAN KREATIVITAS DAN HASIL BELAJAR MATEMATIKA MELALUI MODEL PEMBELAJARAN KOOPERATIF TIPE-STAD TERINTEGRASI ICT Rizki Kurniawan Rangkuti; Marwan Ramli; Mulkan Iskandar Nasution
Jurnal Ilmiah Pendidikan Matematika Al Qalasadi Vol 3 No 1 (2019): JURNAL ILMIAH PENDIDIKAN MATEMATIKA AL QALASADI
Publisher : Prodi Pendidikan Matematika, Fakultas Tarbiyah dan Ilmu Keguruan IAIN Langsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32505/qalasadi.v3i1.885

Abstract

This research was conducted for 2 weeks in October at SMAN 11 Medan. This type of research is classroom action research. Before the action is taken first, the initial test is given. From the results of the initial test, the average student achievement was 20.62 with a classical completeness level of 0%. After giving action I to creative thinking tests the level of student study in classical is 15%, with an average grade achievement of 33.75. To test student learning outcomes the level of completeness obtained by students is 17.5%, with an average grade achievement of 26.42. After the implementation of action II for creative thinking tests the level of student study learning in classical is 85%, with an average achievement of 72.85 classes. To test student learning outcomes the level of completeness obtained by students is 90%, with an average grade achievement of 77.17. From this there is an increase in the level of classical completeness by 70% for students 'creative thinking and 72.5% for students' mathematics learning outcomes. Keywords: Mathematical Creativity, Mathematics Learning Outcomes, ICT Media, Cooperative Type-STAD Model.
Co-Authors Abdul Halim Daulay Amriansyah Simatupang Anak Agung Gede Sugianthara Anggi Kumala Dwi Anwar Dharma Sembiring Cici Chairani Dewi Anggreani Diva Moniva Marpaung Dwitha Astari Eddy Marlianto Heni Meilanda Khorunnisa Siregar Lailatul Husna Lubis Lisdiana Lisdiana M. Ripanza Butar-butar Maghfirah, Awan Mariana Yunita Sari Harahap Marwan Ramli Masthura, Masthura Mey Hajarini Siregar Miftahul Jannah Daulay Muhammad Amrin Siregar Muhammad Hariyanto Muhammad Iqbal Zailany Nasution Muhammad Nuh Nazaruddin Nasution Nazaruddin Nasution Nur Anisah Fitri Daulay Putri Mila Senda Sitorus R. Sapto Hendri Boedi Soesatyo Rahmadhani Banurea Rendy Fadli Iswara Ridwan Yusuf Lubis Rika Lestari Riko Syahputra Manik Rini Rahmadani Tampubolon Riski Muhammad Natsir Nasution Risma Khoiriah Simbolon Rizki Kurniawan Rangkuti Rohima Sakinah Pasaribu Shiti Indriani Suci Ramadhani Harahap Sutan Reka Nasrul Azis Harahap Syahrul Ardiansyah Uswatun Hasanah4 Witya Chairinda Sitorus Zubair Aman Daulay Zubair Aman Daulay