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Pengembangan bahan ajar science, technology, engineering, mathematics model project-based learning untuk meningkatkan proses sains ditinjau dari kemampuan awal dan sikap ilmiah Rusli Irwanto; Ishafit Ishafit; Moh. Toifur
Berkala Fisika Indonesia : Jurnal Ilmiah Fisika, Pembelajaran dan Aplikasinya Vol 14, No 1 (2023)
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/bfi-jifpa.v14i1.23282

Abstract

This research aims to develop teaching materials for project-based learning models for science, technology, engineering, and mathematics (STEM). The procedure for developing teaching materials refers to the 4D model (Design, Define, Develop, Disseminate). The research instrument was in the form of teaching material validation sheets and science process skills tests. The design used is a non-equivalent (pretest-posttest) design. Data were analyzed using due diligence and effectiveness analysis. The product, as a result of the development, was tested and involved two covariates: initial ability and scientific attitude. The developed teaching materials have a very valid category, and the feasibility value of the science process skills test questions from the validator is 97% very good category. The resulting product is practical to apply based on the results of learning management. PjBL STEM teaching materials can improve science process skills.
PENGARUH WAKTU DEPOSISI PADA TEBAL LAPISAN, STRUKTUR MIKRO, RESISTIVITAS KEPING LAPISAN TIPIS CU/NI HASIL DEPOSISI DENGAN TEKNIK ELEKTROPLATING MOH. TOIFUR; NURAMALIA A; OKIMUSTAVA O; IRMA SUKARELAWAN
Jurnal Material dan Energi Indonesia Vol 7, No 02 (2017)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1606.485 KB) | DOI: 10.24198/jmei.v7i02.16132

Abstract

Telah dibuat lapisan tipis Cu/Ni pada variasi waktu deposisi Ni dengan metode elektroplating. Penelitian bertujuan untuk menentukan pengaruh waktu deposisi terhadap tebal lapisan Ni, struktur mikro, dan resistivitas lapisan. Sebagai elektroda digunakan pelat nikel dan tembaga, sedangkan larutan elektrolit dibuat dari paduan NiSO4 75g, NiCl2 10g , H3BO3 7,5g, dan H2O 250 ml. Deposisi dilakukan pada tegangan 1,5 volt, jarak antar elektroda 4 cm, dan suhu 60°C. Waktu deposisi divariasi dari 1 menit sampai 5 menit. Karakterisasi sampel dilakukan dengan memotret tampang permukaan Ni dan tampang lintang Cu/Ni menggunakan foto SEM,  analisis kandungan unsurnya menggunakan EDS untuk sampel hasil deposisi 1 menit dan 5 menit, karakterisasi struktur mikro dengan XRD, tebal lapisan Ni dengan perhitungan, serta resistivitas keping dilakukan dengan alat probe empat titik. Hasil penelitian menunjukkan bahwa tebal lapisan Ni sebanding dengan waktu deposisi Ni. Dari foto SEM pada permukaan lapisan Ni terlihat bahwa sampel hasil deposisi Ni selama 1 menit belum menampakkan adanya butir-butir Ni sedangkan pada sampel hasil deposisi Ni selama 5 menit telah menampakkan butir-butir Ni. Dari analisis menggunakan EDS diperoleh bahwa pada lapisan Cu/Ni mengandung elemen Ni dan Cu serta senyawa NiO dan CuO dengan kadar Ni sebanding dengan waktu deposisi Ni. Dari analisis struktur mikro menggunakan XRD diperoleh beberapa fasa yaitu Cu, Ni, dan NiO berstruktur kristal sedangkan fasa CuO berstruktur amorf. Dari nilai resistivitas keping, semakin lama waktu deposisi resistivitas keping semakin berkurang.
STEM-Integrated PBL: Enhancing Science Literacy and Skills in Light Wave Material Kusumaningtyas, Dian Artha; Leni, Leni; Toifur, Moh
Jurnal Penelitian Pembelajaran Fisika Vol 15, No 3 (2024): JULY 2024
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/jp2f.v15i3.18442

Abstract

This study looked for the influence and effectiveness of STEM-integrated PBL implementation on scientific literacy skills. The research method is quasi-experimental design, as described by Manova. The results obtained are: 1) there is an effect of implementing STEM-integrated PBL on scientific literacy skills in the domain of knowledge and skills with sig. = 0.000; 2) there is an effect of STEM-integrated PBL implementation on scientific literacy skills in the knowledge domain, with sig.= 0.000 content aspect, sig.= 0.000 procedural aspect, and sig.= 0.000 apistermic aspect; 3) there is an effect of implementing STEM-integrated PBL on scientific literacy skills in the skill domain, with sig.= 0.002 aspects of explaining natural phenomena, sig.= 0.001 aspects of designing, evaluating investigations, and sig.= 0.000 aspects of interpreting data, scientific evidence; 4) The implementation of STEM-integrated PBL is quite effective in increasing scientific literacy in the domain of knowledge and skills with an N-gain of 59% and 58%.
Effect of 30˚C Electrolyte Temperature on The Sensitivity Cu/Ni Toifur, Moh.; Islamiyati, Rizka Nuzul
Spektra: Jurnal Fisika dan Aplikasinya Vol. 9 No. 1 (2024): SPEKTRA: Jurnal Fisika dan Aplikasinya, Volume 9 Issue 1, April 2024
Publisher : Program Studi Fisika Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/SPEKTRA.091.01

Abstract

Given the necessity of cryogenic storage and monitoring cryogenic temperatures is equally important. This study aims to determine the resistance value and sensitivity of copper wire before and after electroplating at 30˚C electrolyte temperature as a low temperature sensor. The electrolyte solution consists of NiSO4 260 g, NiCl2 60 g, H3BO3 40 g and Aquades 1000 mL. Electroplating was carried out with an electrolyte temperature of 30˚C, electrode distance of 4 cm, voltage of 4.5 volts and plating time of 4 minutes. The plating results were analyzed to determine the resistance and sensitivity of the sensor at temperatures from 0 to -160˚C. The results showed that the resistance value of the Cu coil obtained RCu = (1.44 ± 0.00) ohm and the resistance of the Cu/Ni coil RCu / Ni = (1.50 ± 0.00) ohm. The resistance value on the Cu/Ni coil (after plating) is greater than the Cu coil (before plating). While the test results of sensor sensitivity show that Cu and Cu/Ni coils have properties as low temperature sensors. Sensor sensitivity increases after plating. The sensitivity value obtained by Cu coil is S(T) = -1E-06T + 6E-05 and Cu/Ni coil S(T) = -2E-06T + 2E-05. The projection sensitivity at a temperature of -200 ˚C obtained is 0.00046 V/˚C less than the Cu/Ni coil 0.00082 V/˚C. So nickel plating on copper coil at 30˚C electrolyte temperature has successfully improved the sensitivity value of the low-temperature sensor.
Thickness Measurement and Sensitivity of Copper/Nickel Electroplating Results of Electrolyte Solution Temperature Variation Islamiyati, Rizka Nuzul; Toifur, Moh.; Okimustava, Okimustava
Spektra: Jurnal Fisika dan Aplikasinya Vol. 9 No. 2 (2024): SPEKTRA: Jurnal Fisika dan Aplikasinya, Volume 9 Issue 2, August 2024
Publisher : Program Studi Fisika Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/SPEKTRA.092.01

Abstract

Currently, cryogenic thermometers are needed and one of the uses of cryogenic thermometers is to measure the temperature of food preservation flasks. Research has been conducted on the manufacture of cryogenic thermometers derived from Cu/Ni coils by electroplating process with temperature variation treatment of electrolyte solution. The purpose of this study is to determine the effect of electrolyte solution temperature variation treatment on Ni thickness and Cu/Ni sensitivity as a low-temperature sensor. Electroplating was carried out with electrolyte temperature parameters of 30˚C-70˚C, electrode distance of 4 cm, voltage of 4.5 volts, and coating time of 4 minutes. The electrolyte solution was a mixture of NiSO4 260 g, NiCl2 60 g, H3BO3 40 g, and Aquades 1000 mL. Based on the results of the study, a remarkable condition was obtained on the thickness of Ni; namely, at 40 ˚C, the thickness increased to 1.08 mm. In addition, the best temperature can produce the greatest sensitivity value in Cu/Ni coil electroplating, namely at 50 ˚C.
Pemanfaatan Teknologi Shipon Terkontrol Water Level Sensor dalam Budidaya Lele Mutiara di Dusun Bakal, Argodadi, Sedayu, Bantul Yogyakarta Toifur, Moh.; Hanafi, Yahya; Okimustava, Okimustava; Agil, Mazani Azizan; Rahayu, Natika; Azizah, Annisa Nur; Fardanti, Aribah Chika; Rahayu, Fatonah
Lumbung Inovasi: Jurnal Pengabdian kepada Masyarakat Vol. 9 No. 1 (2024): March
Publisher : Lembaga Penelitian dan Pemberdayaan Masyarakat (LITPAM)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/linov.v9i1.1418

Abstract

Budidaya ikan lele Mutiara dengan menggunakan teknologi siphon termodifikasi masih dijumpai beberapa permasalahan yaitu ikan banyak yang mati dalam waktu singkat pada 2 minggu pertama karena serangan bakteri aeromonas, mitra belum memiliki pengetahuan mengenai cara menangani bakteri aeromonas, turunnya daya tahan ikan akibat air sumur yang dingin pada bulan Juli-September karena perubahan cuaca rutin tahunan, ikan banyak yang mati karena peningkatan kadar amoniak tidak seimbang dengan kadar oksigen dalam kolam disebabkan tidak adanya sirkulasi air untuk menambah kadar oksigen. Solusi untuk mengatasi permasalahan tersebut yaitu penggunaan teknologi water level sensor agar terjadi aliran air kontinyu secara otomatis ke dalam kolam. Mitra kegiatan pengabdian yaitu Pokdakan Mina Mekar Jannah yang berlokasi di Dusun Bakal, Argodadi, Sedayu, Kabupaten Bantul, D.I. Yogyakarta. Kegiatan pengabdian dilaksanakan selama 6 bulan (Juni-November 2023), melibatkan satu ketua, dua anggota dosen dan lima orang anggota mahasiswa. Teknik pengumpulan data menggunakan kuesioner dan pengukuran secara langsung bobot ikan, panjang ikan, suhu, pH, NH3. Jumlah responden yaitu 25 orang anggota Pokdakan Mina Mekar Jannah. Instrumen yang digunakan yang yaitu angket dan timbangan, penggaris,  serta sensor suhu, pH, NH3. Kegiatan PkM pemanfaatan teknologi shipon terkontrol water level sensor dalam budidaya lele mutiara telah mencapai indikator keberhasilan yang ditetapkan. Melalui kegiatan PkM telah transfer teknologi penggunaan siphon termodifikasi, sensor suhu, pH, NH3, dan water level sensor kepada mitra. Kegiatan PkM berdampak pada peningkatan pengetahuan, kemampuan, keterampilan mitra dalam budidaya ikan lele Mutiara. Mitra sasaran memperoleh manfaat dari kegiatan PkM yang dilakukan dan berkomitmen untuk melanjutkan kegiatan budidaya ikan lele Mutiara yang telah dilakukan. Utilization of Shipon Technology Controlled Water Level Sensor in Hygienic Pearl Catfish Cultivation in Bakal Hamlet, Argodadi, Sedayu, Bantul, Yogyakarta Abstract: Pearl catfish farming using modified siphon technology still encountered several problems, namely, many fish died in a short time in the first two weeks due to Aeromonas bacteria attack, partners did not know how to deal with Aeromonas bacteria, decreased fish endurance due to cold healthy water in July-September due to annual routine weather changes, many fish died due to increased ammonia levels not balanced with levels Oxygen in the pool is caused by the absence of water circulation to increase oxygen levels. The solution to this problem is using water level sensor technology so that there is an automatic continuous flow of water into the pool. The partner of the service activity is Pokdakan Mina Mekar Jannah, located in Bakal Hamlet, Argodadi, Sedayu, Bantul Regency, D.I. Yogyakarta. The service activity will last six months (June-November 2023), involving one chairman, two lecturers, and five student members. Data collection techniques use questionnaires and direct fish weight, length, temperature, pH, and NH3 measurements. The number of respondents was 25 members of the Mina Mekar Jannah Pokdakan. The instruments used are questionnaires, scales, rulers, temperature sensors, pH, and NH3. PkM activities utilizing shippon technology-controlled water level sensors in pearl catfish cultivation have achieved the established success indicators. PkM has transferred technology using modified siphons, temperature sensors, pH, NH3, and water level sensors to partners through activities. PKM activities impact increasing partners' knowledge, abilities, and skills in pearl catfish farming. Target partners benefit from the PKM activities carried out and are committed to continuing the Mutiara catfish farming activities that have been carried out.
Analisis Penerapan Metode Mind Mapping Untuk Pembelajaran Ilmu Pengetahuan Alam (SAINS) Pada Siswa Sekolah Menengah Pertama Aliyah Chaliq, Marhamatul; Toifur, Moh.
Jurnal Sains dan Teknologi Vol. 6 No. 1 (2024): Jurnal Sains dan Teknologi
Publisher : CV. Utility Project Solution

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55338/saintek.v6i1.3245

Abstract

Tujuan dari penelitian ini adalah untuk mengevaluasi pengaruh model Mind Mapping dalam pembelajaran Sains. Penulis melakukan studi literatur untuk mendukung analisisnya dengan berbagai sumber yang relevan. Data yang digunakan dalam penulisan ini berasal dari jurnal-jurnal yang telah dipublikasikan tentang model Mind Mapping dalam pembelajaran sains. Penulis mencari data dari jurnal Online di Google Cendikia/ Google Scholar. Data yang ditemukan kemudian ditelaah lagi dengan menggunakan metode deskriptif analitik. Hasil analisis data dari berbagai sumber menunjukkan bahwa model pembelajaran Mind Mapping memberikan dampak positif dalam pembelajaran Sains dengan berbagai tingkat peningkatan yang beragam di setiap penelitian.
Determining the Particle Size of Cu and Ni in Thin Cu/Ni Films using the Williamson-Hall Method Rahmatika, Zulfa ‘Amalia; Toifur, Moh.
Journal of Novel Engineering Science and Technology Vol. 2 No. 01 (2023): Journal of Novel Engineering Science and Technology
Publisher : The Indonesian Institute of Science and Technology Research

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56741/jnest.v2i01.311

Abstract

This research focuses on analyzing the particle size of a thin Cu/Ni layer produced through electroplating by varying the input voltage. The Williamson-Hall method is used to determine the particle size of the layer, and an X-ray diffractometer is used to characterize the layer. The study finds that the particle size of Cu and Ni layers with different applied voltages has different values due to various factors. The optimum voltage for the Ni layer is found to be 7.5 volts, and its overall particle size is 4.13 × 10^(-10) nm, while the particle size of Cu is 5.00 × 10^(-9) nm. The applied voltage affects the particle size produced, and the research identifies an optimum voltage at 7.5 volts.
PENENTUAN PERCEPATAN GRAVITASI BUMI BERBANTUAN MEDIA PHET DENGAN TEKNIK RATA-RATA BERBOBOT Saumarachmawati, Putri Ani; Toifur, Moh
EduFisika: Jurnal Pendidikan Fisika Vol 9 No 3 (2024): EduFisika: Jurnal Pendidikan Fisika Volume 9 Nomor 3 December 2024
Publisher : Program Studi Pendidikan Fisika FKIP Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59052/edufisika.v9i3.36705

Abstract

The value of gravitational acceleration (g) varies across different locations depending on the distance from the surface to the Earth's center of mass. Additionally, the value of ggg is influenced by the data processing method employed. This study aims to determine the Earth's gravitational acceleration in the Banten region using a pendulum assisted by the Phet pendulum-lab simulation. The experiment was conducted using two methods: the average technique and the weighted average technique. For the average technique, the period was measured 10 times for a string length of 80 cm. For the weighted average technique, the period of the pendulum swing was measured at varying string lengths from 80 to 100 cm, with five variations, each measured 10 times. The results of the study showed that the gravitational acceleration determined using the average technique was 9.72 ± 0.28 m/s², while the weighted average technique yielded 9.78 ± 0.08 m/s². With the reference value of gravitational acceleration being 9.80 m/s², the weighted average technique successfully corrected the relative error from 0.82% to none. Moreover, the determination of gravitational acceleration using the weighted average technique produced more accurate results compared to the average technique. This study also confirms that the PhET simulation is an effective and reliable tool for measuring gravitational acceleration, particularly when physical experimental conditions are less than ideal. The weighted average technique significantly contributes to improving measurement precision, making it valuable for both physics research and education
Home Made Four-Point Probe: Case Studies of the Wobbly A and B Probes Toifur, Moh.; Sukarelawan, Moh. Irma; Okimustava, Okimustava
Indonesian Review of Physics Vol. 6 No. 1 (2023)
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/irip.v6i1.8362

Abstract

A simulation on the effect of probe deviation on sheet resistivity value (Rs) of Cu/Ni thin film was carried out in a home-made four-point probe (HM-FPP) type. This began by solving the Rs formula for normal probes, and then for wobbly probe when it was either A, or both A and B. The formula was implemented on a thin layer of Cu/Ni, which was a low temperature sensor material obtained from electrodeposition for 60s assisted by a 200G magnetic field at a current density of 0.07A/mm2. An electric current of 0.20118A was flown from probe A to D in order to produce a potential difference between probe C and D of 0.0005 volts. Furthermore, the distance between the probes was 5 mm and the deviation of each probe A and B were simulated from -0.5 mm to 0.5 mm. The maximum allowable limit for the relative error of Rs or SRs is 5%. The results showed that the ideal Rs value was 0.113 ohm/sq. Furthermore, for HM-FPP in which the wobbly probe only A, there is no problem encountered with the variation of the deviation because all SRs are less than 5%. For wobbly probes A and B, if they are on the same side of the center point of each probe, the maximum allowable deviation is 0.3 mm. The SRs for this case were 4.6%. However, if they are on different sides of the center point of each probe, the maximum allowable deviation is 0.1 mm with SRs of 2.9%. With these results, HM-FPP craftsmen must be more careful in making the size of the probe hole.
Co-Authors . Ridwan A, NURAMALIA Adi Jufriansah Adi, Rusli Agil, Mazani Azizan Aliyah Chaliq, Marhamatul Arief Hermanto Arief Hermanto Ayu Lusiyana, Ayu Azizah, Annisa Nur Azmi Khusnani Bambang Sudarsono Bambang Sudarsono Bayu Setiawan Carissa Viola Putri Alfian Choirul Huda Danurdara Setiamukti Darsono . Destri Ratna Ma'rifah Deswitan Deswitan Dian Artha Kusumaningtyas Dian Artha Kusumaningtyas Didin S Winatapura Dimas Nurachman Dina, Devi Farah Dwi Sulisworo Effilia Allun Jaladri Eko Susanto Eko Susanto Erwin Prasetyo Ety Dwiastuti Fardanti, Aribah Chika Fatkhur Rohman Fayakun Muchlis Feri Iskandar Fiqry, Rizalul Hadi Sasongko Hajatulloh, Ridlo Halleyna Widyasari Hamzah Hamzah Haris Rosdianto Hendro Setyono Hindaresmi Hindaresmi Irfan Rosyadi Irfan Yunianto Irnin Agustina Dwi Astuti Irnin Agustina Dwi Astuti Irnin Agustina Dwi Astuti, Irnin Agustina Dwi Ishafit Ishafit Ishafit Ishafit Ishafit Ishafit Ishafit Islamiyati, Rizka Nuzul Izzati, Elsarina Nur Jaafar, Rosly Jarot Suseno Jayati Jayati Kamsul Abraha Kamsul Abraha Kurniasari, Efi Leni Leni Listyaningrum, Trisna Avi M Taufiqurrahman M. Safrudin M. Taufiqurrahman Maisaroh, Mukholiffatul Matavani, Heru Miftahus Surur, Miftahus Moh. Irma Sukarelawan Muchairah Haji Hasan Muchlis, Fayakun Muhammad Faisal Muhammad Ihsan Murtiatmi Warnaningtyas Mustava, Oki Mutmainah, Nur Fitri Ningrum, Rr. Sinta Kusuma Nisrina Karimah Nur Hamida Siregar NURAMALIA A Nurlailah Nurlailah O, OKIMUSTAVA Okimustava Okimustava Okimustava Okimustava PRASETYO, ERWIN Prayoto Prayoto Putri, Siti Zahra Helmania R. Oktova Rahayu, Fatonah Rahayu, Natika Rahmatika, Zulfa ‘Amalia Ria Asep Sumarni Ria Asep Sumarni, Ria Asep Ridwan Ridwan Ridwan Ridwan Ridwan Ridwan Rismawan Rismawan Rismawan Rismawan Rizka Nuzul Islamiyati Rosly Jaafar Rr. Sinta Kusuma Ningrum Rusli Adi Rusli Irwanto Safirudin . Salamah, Asnin Nur SATRIYAS ILYAS Saumarachmawati, Putri Ani Setiawan, Indra Budi Silvia Laeli Singgih, Suwito Siregar, Nur Hamida Sugiyanto Sugiyanto Sujatmoko Sujatmoko Sujatmoko Sujatmoko Sujatmoko Sujatmoko Suparwoto Suparwoto Suparwoto Suparwoto Supriyana Supriyana Suryandari Suryandari Thoha Firdaus Toni Kus Indratno Tono Wibowo Utama, Rodika Utami, Listiati Budi Venty Aghnani Nurhamidy Warnaningtyas, Murtiatmi Wijanarka, Willi Anindita Willi Anindita Wijanarka Wisnu Ari Adi Y. Pramudya, Y. Yahya Hanafi Yahya Hanafi Yoga Budi Bhakti Yudhiakto Pramudya Yuli Hastiani Yuni Latifah Zahra, Siti Zahra Helmalia Putri