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All Journal Jurnal Sains dan Seni ITS JFA (Jurnal Fisika dan Aplikasinya) UNEJ e-Proceeding Jurnal Pengabdian Kepada Masyarakat (Mediteg) Jurnal Pengabdian Ilung (Inovasi Lahan Basah Unggul) Sewagati Jurnal Sains Materi Indonesia

Fatimah, Iim

Departemen Fisika Institut Teknologi Sepuluh Nopember

Author-ID : 1354557

Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Dentistry Economics, Econometrics & Finance Education Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Nursing Physics Public Health Social Sciences Other

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Pengaruh Variasi Siklus Freezing-Thawing Pada Performansi Elektroda Karbon Dalam Sistem Capacitive Deionization Diani Ainun Nisa; Endarko Endarko; Iim Fatimah
Jurnal Sains dan Seni ITS Vol 5, No 2 (2016)
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat (LPPM), ITS

Elektroda karbon dari bahan karbon aktif dengan metode freezing thawing telah berhasil disintesa dan dikarakterisasi. Penelitian ini bertujuan untuk mengetahui nilai kapasitansi dan peformansi dari sistem capacitive deionization (CDI) dengan variasi siklus freezing thawing. Dalam penelitian ini menggunakan variasi siklus yakni 3, 4 dan 5 siklus. Selain variasi siklus, diteliti juga perbandingan performasi elektroda karbon menggunakan karbon aktif dimodifikasi dengan HNO3 dan tidak dimodikasi. Karakterisasi dilakukan melalui uji Cyclic Voltammetry (CV) dan uji Electrical Impedance Spectroscopy (EIS). Dalam uji CV elektroda karbon modifikasi memiliki nilai spesifik kapasitasi (26,78 F/g)lebih besar jika dibandingkan elektroda karbon tanpa modifikasi (22,77 F/g), keduanya dalam 5 siklus freezing-thawing. Hasil desalinasi, didapatkan pengurangan kadar garam 596 μs/cm NaCl untuk sistem CDI dengan tegangan sumber 1,9 V yaitu sebesar 55,70 % untuk karbon modifikasi dan 24,80 % untuk elektroda karbon tanpa modifikasi.

Rancang Bangun Kontroller Virtual Reality dengan Magnetometer Akselerometer Giroskop (MARG) dan Filter Madgwick Rachmad Sudibyo Danu Saputro; Melania Suweni Muntini; Iim Fatimah
Jurnal Sains dan Seni ITS Vol 6, No 1 (2017)
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat (LPPM), ITS

Pada tugas akhir ini telah dibuat dan dianalisa kontroller Virtual Reality berbasis sensor magnetometer HMC5883L, akselerometer beserta giroskop MPU6050, dan mikrokontroller Arduino ATMEGA328. Keluaran dari sistem berupa nilai orientasi sudut putar yaw, pitch dan roll, kemudian diberikan variasi konstanta β untuk mengetahui pengaruhnya terhadap nilai keluaran.. Pengujian sistem dilakukan pada keadaan statis dan dinamis. Dari hasil pengujian semakin besar nilai konstanta β, semakin cepat waktu untuk mencapai keadaan steady-state. Nilai optimum dari variasi konstanta β yang diberikan adalah 0.05 dikarenakan memiliki Root Mean Square Error yang terkecil diantara variasi lainnya.

Pemodelan Profile Greenhouse Berbasis Neural Network Muhammad Rizky; Melania Suweni Muntini; Iim Fatimah
Jurnal Sains dan Seni ITS Vol 6, No 2 (2017)
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat (LPPM), ITS

Pemodelan profile greenhouse merupakan salah satu hal penting untuk memaksimalkan pertumbuhan tanaman yang ditanam di dalam greenhouse. Sebelum dimodelkan, dibandingkan ketika greenhouse dengan sistem otomasi dalam keadaan mati dan ketika greenhouse dengan sistem otomasi dalam keadaan hidup. Dengan diterapkan sistem otomasi dapat meningkatkan kualitas greenhouse dengan cara menurunkan suhu dan meningkatkan kelembaban. Semakin baik kualitas greenhouse maka semakin baik pertumbuhan tanaman dalam greenhouse. Pemodelan dalam penelitian ini digunakan model neural network tipe back-propagation. Profile greenhouse meliputi suhu udara, kelembaban udara, suhu tanah dan kelembaban tanah. Hasilnya ialah profil terbaik dari greenhouse adalah pada suhu udara pukul 16.00 – 07.00, kelembaban udara mencapai 98%, suhu tanah pukul 18.00 – 08.00 dan kelembaban tanah mencapai 98% serta hasil pemodelan mendekati data pengukuran dengan nilai kesalahan mencapai 1%.

Pengaruh Variasi Temperatur Uji ZEM-3 pada Properti Termoelektrik Lapisan Tipis Ti-doped ZnO Mujtahidatul Alawiyyah; Athorn Vora-Ud; Somporn Thaowankeaw; Tosawat Seetawan; Melania Suweni Muntini; Iim Fatimah
Jurnal Sains dan Seni ITS Vol 9, No 2 (2020)
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat (LPPM), ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23373520.v9i2.58755

Lapisan tipis Ti-doped ZnO berhasil difabrikasi pada substrat kaca SiO2 dengan menggunakan metode DC Magnetron Sputtering. Proses sputtering dilakukan dalam waktu 30 menit dan dengan tegangan sebesar 339-349 Volt. Lapisan tipis yang terbentuk memiliki ketebalan 241.287 nm. Uji properti termoelektrik dilakukan pada temperatur 310 K, 373 K, 423 K, 473 K, 523 K, 573 K, dan 623 K. Hasilnya, nilai resistivitas listrik lapisan tipis menurun hingga 523 K, dengan nilai resistivitas terendahnya adalah 0.446 ρ (mΩ m). Nilai koefisien Seebeck yang dihasilkan adalah minus menandakan bahwa lapisan tipis merupakan semikonduktor tipe n. Nilai koefisien Seebeck selalu meningkat seiring dengan pertambahan temperatur. Semakin tinggi temperatur yang diberlakukan pada material semikonduktor, maka makin tinggi pula faktor dayanya. Faktor daya paling tinggi terjadi pada temperatur 573 K dengan 32 µWm-1K2.

The Influence of Humidity-Control Addition on Electrospinning System for Nanofiber Formation Diky Anggoro; M Rizki Romadhoni; Imam Muhlas; Iim Fatimah
Jurnal Fisika dan Aplikasinya Vol 18, No 1 (2022)
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat, LPPM-ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j24604682.v18i1.11659

This research was conducted to determine the effect of humidity control system and collector rotational speed on electrospinning during PVA nanofiber fabrication. The humidity control system is controlled by Arduino Uno and the actuator is an air pump, and modifications are made to the air pump by adding silica gel as a more optimal humidity reducing agent. A 12 V DC-motor and L293D driver are used to control the direction and speed of rotation of the collector. The collector speed control uses the principle of Pulse Width Modulation (PWM). The humidity control system that has been made has an accuracy rate of more than 88%, and the lowest relative humidity achieved is 30%. The collector control system that has been made has an accuracy rate of more than 95%, and the lowest rotational speed is 125 RPM. Carbon nanofiber was successfully fabricated with an average diameter distribution of 43.4 nm and 79.2 nm at 30% and 40% humidity, respectively.

MODELLING DYNAMICS OF ZNO PARTICLES IN THE SPRAY PYROLISIS REACTOR TUBE Diky Anggoro; Melania Muntini; Iim Fatimah; Sudarsono Sudarsono
UNEJ e-Proceeding 2016: Proceeding The 1st International Basic Science Conference
Publisher : UPT Penerbitan Universitas Jember

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

Development of ZnO particles research is current quite rapidly, especially in the fields of medicine and energy. ZnO Particle morphology during the process of synthesis using spray pyrolysis systems highly influential in its application the future. Our research group has developed a system of tubes spray pyrolysis reactor with the electrical heater. Physical phenomena that occur in the processing of particles, simulated in the form of a mathematical equation, useful for the experimental spray pyrolysis as there some parameters such as carrier gas flow (Q), the temperature of reactor walls (Tw), the number concentration of droplets that enter reactor (No), and the size of initial droplet diameter (dPo). The modelling parameters provide system optimization and prediction of particle morphology formed from experiments.

Blood Pressure Monitor Design Using MPX5050GP Pressure Sensor and Visual C# 2010 Express Ayu Jati Puspitasari; Endarko Endarko; Iim Fatimah
Jurnal Fisika dan Aplikasinya Vol 15, No 3 (2019)
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat, LPPM-ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j24604682.v15i3.4929

Blood pressure monitor (BPM) using oscillometric method with MPX5050GP pressure sensor has been successfully fabricated and calibrated. Oscillometric method is measurement method to observe cuff pressure oscillations. In this study, the oscillometric waveform measured by fabricated BPM used Arduino Uno which processes pulse rate, systolic and diastolic pressures. Measurement results of pulse rate, systolic and diastolic pressures will be displayed and recorded in application designed using Visual C# 2010 Express. Fabricated BPM capable of measuring pulse rate and blood pressure in the range of 40-260 mmHg with ratio of systolic and diastolic pressures were achieved 0.48 and 0.78, respectively. The system has an average error of systolic pressure, diastolic pressure, and pulse rate were -4.38 mmHg (2.72%), 0.10 mmHg (5,55%), and 4.48 bpm (6.07%).

PENINGKATAN KUALITAS DAN KUANTITAS OLAHAN RUMPUT LAUT COTTONII PADA UKM KELOMPOK TANI MANGROVE WONOREJO RUNGKUT Lila Yuwana; Susilo Indrawati; Iim Fatimah; Sudarsono Sudarsono; Melania Suweni Muntini; Suyatno Suyatno
Jurnal Pengabdian Kepada Masyarakat (MEDITEG) Vol 7 No 1 (2022): Jurnal Pengabdian Kepada Masyarakat (MEDITEG)
Publisher : Pusat Penelitian dan Pengabdian Kepada Masyarakat (P3M) Politeknik Negeri Tanah Laut (Politala)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34128/mediteg.v7i1.112

In this community services, cottoni seaweed processed products have been developed which are widely obtained in mangrove forest areas, mangroves, Rungkut Surabaya. Moreover, the production capacity has been increased so that production per day can increase significantly, i.e, to the double if using the equipment provided in this activity. Furthermore, the production process will also be accelerated so that not only the quantity of products per day is improved, but also the production time can be accelerated and the production process will be much more efficient. With the existence of this community services, it has also succeeded in increasing the diversification of processed products made from local raw materials efficiently and with a large production capacity. It has been produced that the production capacity is doubled per day if using the mixer equipment provided by the service team. Furthermore, by using a spinner that is also provided by the community services team, quality improvement is attained by slicing oil for processed fried foods.

Light trap Lampu LED Sebagai Penjebak Hama Padi Berbasis Sel Surya Bagi Petani di Desa Lembeyan Kulon Kabupaten Magetan Sudarsono Sudarsono; Retno Asih; Iim Fatimah; Diky Anggoro; Linda Silvia; Lila Yuwana; Nurrisma Puspitasari
Jurnal Pengabdian ILUNG (Inovasi Lahan Basah Unggul) Vol 2, No 1 (2022)
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/ilung.v2i1.4361

Lembeyan Kulon merupakan salah satu desa di Kecamatan Lembeyan, Kabupaten Magetan Jawa Timur, dengan penduduknya sebagian besar sebagai petani. Lahan pertanian sebagian besar ditanami padi dengan masa tanam rata rata dua kali dalam setahun. Para petani sering menggunakan pestisida untuk membasmi hama seperti wereng coklat, walang sangit, kepik hijau, penggerek batang padi dan penggulung atau pelipat daun. Penggunaan pestisida dalam membasmi hama padi merupakan cara yang praktis dan mudah. Namun dibalik penggunanan pestisida tentu memberikan dampak negatif diantaranya banyak makhluk hidup lain di sawah yang tidak menggangu tanaman padi ikut mati. Penggunaan pestisida yang berlebihan selain mempunyai dampak negatif bagi makhluk hidup lainnya juga memerlukan biaya yang tidak murah dan dapat membahayakan kesehatan manusia. Dari permasalahan tersebut perlu dilakukan alternatif cara pengendalian hama padi yang ramah lingkungan. Pada makalah ini dilakukan rancang bangun light trap penjebak hama padi lampu LED sebagai penjebak hama padi berbasis sel surya bagi petani di Desa Lembeyan Kulon, Kecamatan Lembeyan, Kabupaten Magetan. Prinsip kerja alat ini adalah menarik hama padi dengan cahaya lampu di malam hari sehingga terperangkap dalam sebuah wadah. Sistem light trap ini bekerja secara otomatis yaitu menyala otomatis di malam hari dan mati di siang hari untuk melakukan pengisian baterai dengan sinar matahari melalui panel surya

Performance Analysis of Cone Basin-Based Gravitational Water Vortex Power Plant (GWVPP) by Variations in the Number of Blades Iim Fatimah; Haswin Dian Fathoni; Bachtera Indarto
Jurnal Fisika dan Aplikasinya Vol 18, No 3 (2022)
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat, LPPM-ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j24604682.v18i3.14496

The electricity supply is not evenly distributed for all regions in Indonesia. This is due to the lack of transportation access to reach these areas because of difficult terrain conditions. One of abundant energy sources available in nature is water, which can be used for micro-level power generation. Micro hydro generator usually uses a waterfall with a high head. However, not all of the water flow has a head tall. Therefore, this study proposes a promising prototype of a cone basin-based Gravitational Water Vortex Power Plant (GWVPP). The purpose of this study is to determine the performance of the cone basin-based GWVPP prototype by variation in the number of blades. The vortex turbine is designed with a water flow rate of 169.63 liters/minute and a cone basin with square-shaped blades and variations in the number of blades, namely 2, 4, and 6, with the same turbine blade area of 0.01 m2 . It was found that an increase in the number of blades enhances mechanical characteristics of, e.g. torque and rotational speed, as well as electrical characteristics, e.g. voltage, current, and electric power. The maximum result is achieved when the number of blades is six with the rated power of 5 mW and the rotation speed of 119.351 rpm.

Co-Authors Agnes Tuti Rumiati Aristu Prananca Athorn Vora-Ud Ayu Jati Puspitasari Bachtera Indarto, Bachtera Bintoro Anang Subagyo Diani Ainun Nisa Diky Anggoro Endarko Endarko Faridawati Faridawati Gatut Yudoyono Gontjang Prajitno Haswin Dian Fathoni Imam Muhlas Janti Gunawan Lila Yuwana Linda Silvia, Linda Lucky Putri Rahayu M Rizki Romadhoni Melania Muntini Melania Suweni Muntini Mohammad Haekal Muhammad Rizky Mujtahidatul Alawiyyah Muthmainnah, Melania Suweni Muntini Nurrisma Puspitasari Rachmad Sudibyo Danu Saputro Retno Asih Somporn Thaowankeaw Sudarsono Sudarsono Sudarsono Sudarsono Sudarsono Sudarsono Susilo Indrawati Suyatno Suyatno Suyatno Suyatno Suyatno Tosawat Seetawan Yanurita Dwi Hapsari Yono Hadi Pramono

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