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PENGUKURAN RESISTIVITAS DAN DIELEKTRISITAS TANAH PERKEBUNAN APEL: SEBUAH LANGKAH AWAL DALAM STUDI AGROGEOPHYSICS Zulaikah, Siti; Prayekti, Era Budi; Pramono, Nugroho Adi; Laksono, Yoyok Adisetyo; Munfarikha, Ninik; Hikma, Rizka Amirul; Kurniawan, Husni Cahyadi
Jurnal Spektra Vol 16, No 1 (2015): Spektra: Jurnal Fisika dan Aplikasinya
Publisher : Jurnal Spektra

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

Abstract

AbstrakTelah dilakukan pengukuran resistivitas dan dielektrisitas tanah perkebunan Apel di Malang. Pengukuran resistivitas dilakukan dengan metode Geolistrik dan dielektrisitas dengan menggunakan Ground Penetrating Radar (GPR). Metode Geolistrik dilakukan dengan konfigurasi dipole-dipole dengan teknik sounding –mapping pada tiga lintasan area perkebunan seluas 1800 m2 dan satu lintasan pada area lapangan di sebelah perkebunan. Sementara itu, metode GPR diterapkan pada dua pohon apel untuk mengidentifikasi sistem perakaran apel. Pengukuran resistivitas dilakukan di perkebunan Apel desa Bengkaras Pujon, Malang sedangkan GPR dilakukan di perkebunan Poncokusumo Malang. Dari hasil pengolahan data resistivitas dengan menggunakan software Res2dinv diperoleh hasil nilai resistivitas dari keempat lintasan adalah: lintasan pertama 4,83 – 22094 Wm, lintasan kedua 6,69 – 4947 Wm, lintasan ketiga 14,1 – 178 Wm dan lintasan keempat 4,50 – 20025 Wm. Dari data tersebut secara keseluruhan belum dapat dibedakan dengan jelas nilai resistivitas antara daerah perkebunan dengan bukan perkebunan di lingkungan penelitian. Sementara itu dari pengukuran GPR diperoleh jangkauan pengukuran mencapai kedalaman 2,18 meter dan jangkauan kedalaman akar apel 1.9 meter. Rentang nilai konstanta dielektrik yang diperoleh 0,1 – 8,8 F/m. Nilai konstanta dielektrik akar 4,9 F/m. Kata kunci: Resistivitas, dielektrisitas, tanah, perkebunan apel AbstractThe resistivity and dielectric properties of Apple’s soil plantation area in Malang have been measured.  Resistivity measurement was done using geo-electrical methods and dielectric properties was measured using ground penetrating radar (GPR). Configuration of geo-electrical methods in this research is dipole-dipole and sounding –mapping technique. We have three line measurement of geo-electrical measurement for an area 1800 m2 and one line on the football yard beside of the apple plantation in Bengkaras village Pujon, Malang. Meanwhile, GPR methods was conducted on two apple trees to identify apple root system in apple plantation in Poncokusumo village Malang. The result of this research based on data analysis using Res2dinv software shows the resistivity value of four line, that are 4,83 – 22094 Wm for line number one, 6,69 – 4947 Wm  for second line, 14,1 – 178 Wm for line number three and 4,50 – 20025 Wm for line number four. From the data, generally, we cannot distinguish clearly of resistivity value of apple plantation and football yard. On the other hand, GPR measurement we can describe the maximum depth of penetrate is about 2,18 meter and the depth of root system is about 1.9 meter. The range of dielectric value is between 0,1 to 8.8 F/m and the dielectric constant of root is about 4,9 F/m. Keywords: Resistivity, dielectric, soil, apple plantation
IDENTIFICATION OF FAULT CONTINUITY AND HOT WATER RESERVOIR USE SCHLUMBERGER CONFIGURATION RESISTIVITY METHOD IN CANGAR Widyasandy, Dhony; Nugraha, Aulia K; Kurniawan, Husni Cahyadi; Luthfin, Ahmad
Jurnal Neutrino:Jurnal Fisika dan Aplikasinya Vol 13, No 1 (2020): October
Publisher : Department of Physics, Maulana Malik Ibrahim State Islamic University of Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18860/neu.v13i1.8282

Abstract

Research that uses the Schlumberger configuration resistivity method had been conducted in Cangar. The purpose of this study is to identify cracks/faults and potential hot springs use resistivity well analysis and correlate it with rock lithology in Cangar, East Java. Data acquisition is carried out using 3 tracks with 10 sounding points. The space between points is 50 meters. The rock resistivity values obtained were 9945 Ωm, 7360 Ωm, and 5573 Ωm which were thought to be breccia layers and functioned as hot springs. This estimation is strengthened by the existence of a layer of breccia-andesite because this layer is very good as a water reservoir. In addition, based on the lateral cross-section on lane 1, there was a decrease in boulder-sized breccia-andesite layers; this decrease was the production of faults.
STRUCTURE MODELLING OF SUBSURFACE BY USING KIRCHHOFF MIGRATION METHOD AND FINITE DIFFERENCE ANISOTROPY METHOD Husni Cahyadi Kurniawan; Adi Susilo; Teguh Suroso
INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 6, No 02 (2016): October
Publisher : Department of Physics, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/ijap.v6i02.1422

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The image of subsurface with a migration method keeps on developing to get an image result which the closest in real condition. The conditions in subsurface are very complex and variables it couses the process of wave  propagation which can not be judged as the same in every layers. so it is needed an anisotropy pharameter analysiz (η) in seismic data migration process. The research will compare two kinds of migrations those are Kirchhoff migration and finite difference anisotropy. It is done because not all datas are processed by anisotropy, even with isotropi it will get good result. The result of kirchoff migration has not so good quality (low resolution) on the first layer reflector.but on the second and third layer reflector have good result (high resolution). I estimate that in the first layer reflector there is anistropi influence, because the ratio effect between far offset and the depth is hight. The analysis result get η ansotropi pharameter result as 0,25 and put into migration process. On the second migration process is finite difference anisotropy appears on the first layer reflector and shows high resolution and suitable with the real layer model.
Identifikasi Kemampuab Berpikir Kreatif Siswa Kelas VIII SMP Mambaul Hisan Ngadiluwih Kediri dalam Pemecahan Masalah Materi Tekanan Zat Siti Afidatul Karomah; Husni Cahyadi Kurniawan; Nani Sunarmi
SILAMPARI JURNAL PENDIDIKAN ILMU FISIKA Vol 4 No 1 (2022): Silampari Jurnal Pendidikan Ilmu Fisika (SJPIF)
Publisher : LPPM UNIVERSITAS PGRI SILAMPARI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31540/sjpif.v4i1.1556

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The ability to think creatively is very important for students in the learning process, especially physics. Then a study was conducted that aimed to identify the level of creative thinking ability of Class VIII SMP Mambaul Hisan Ngadiluwih Kediri in solving the problem of substance pressure. Aspects of creative thinking skills tested include fluency, flexibility, originality, and elaboration. Collecting data through written tests and interviews, where the data obtained in the form of quantitative data and then analyzed descriptively. The results showed that the creative thinking skills of high-ability students were at level 3, namely being creative and able to fulfill the three aspects tested. Students of moderate ability are at level 2 which is creative enough to be able to fulfill the two aspects tested. Low ability students are at level 1 and level 0, level 1 students are less creative only meet one aspect and level 0 students have not fulfilled one aspect of creative thinking tested.
IDENTIFIKASI KEMENERUSAN SESAR DAN POTENSI RESERVOAR AIR PANAS CANGAR DENGAN MENGGUNAKAN METODE GRAVITASI Husni Cahyadi Kurniawan; Dhony Widyasandy; Ahmad Luthfin; Aulia K Nugraha; Agus Budi Jatmika
Karst : JURNAL PENDIDIKAN FISIKA DAN TERAPANNYA Vol 5 No 1 (2022): Karst: Jurnal Pendidikan Fisika dan Terapannya
Publisher : Program Studi Pendidikan Fisika FKIP Universitas Muslim Maros

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46918/karst.v5i1.1284

Abstract

Telah dilakukan penelitian tentang potensi panas bumi di daerah pemandian air panas Cangar Kota Batu Jawa Timur berdasarkan metode gravity dengan menggunakan alat Gravity-meter La Coste & Romberg seri G1053. Pengambilan data dilakukan di 20 titik pengamatan disekitar Pemandian air panas Cangar. Hasil penilitan nilai kontras densitas sayatan AA’ dibagi menjadi 3 lapisan utama secara umum, ketiga lapisan batuan tersebut masing-masing adalah : Andesit di bagian dasar pada kedalaman 0,5 km – 1 km nilai densitas sebesar 2,617 gr/cm3. Yaitu di lapisan atasnya terdapat breksi-andesitik dengan nilai densitas yang tidak jauh berbeda yaitu 2,680 gr/cm3 dengan kedalaman 0,3 – 0,5 km. Sedangkan dekat permukaan berupa endapan tufa andesitik dengan nilai densitas yaitu 2,685 gr/cm3. Untuk nilai kontras densitas Sayatan BB’ dibagi menjadi tiga lapisan batuan utama diantaranya : Andesit dengan nilai densitas 2,62 gr/cm3 pada basement atau dasar lapisan dari model tersebut (kedalaman 0,5 – 1 km). Kemudian breksi-andesitik dengan nilai densitas 2,678 – 2,695 gr/cm3. Pada bagian dekat permukaan berupa tufa andesitik dengan nilai densitas berkisar 2,66 – 2,677 gr/cm3. Dengan adanya lapisan breksi-andesit ini sangat baik sebagai penampung air karena memiliki porositas yang tinggi.
Upacara Adat Sedekah Gunung sebagai Sarana Mitigasi Bencana Letusan Gunung Merapi berbasis Local Wisdom Husni Cahyadi Kurniawan; Bagus Wahyu Setyawan
Al Kawnu : Science and Local Wisdom Journal Vol 1, No 1 (2021): Oktober 2021
Publisher : Tadris Biologi, Tadris Fisika and Tadris Kimia, Universitas Islam Negeri Antasari

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (361.136 KB) | DOI: 10.18592/ak.v1i1.5087

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Tujuan dari penelitian ini adalah untuk mendeskripsikan dan menjelaskan upacara adat sedekah gunung sebagai sarana mitigasi bencana Gunung Merapi berbasis kearifan lokal. Setting lokasi tempat penelitian adalah di Kecamatan Selo, Kabupaten Boyolali. Pendekatan yang digunakan dalam penelitian ini adalah pendekatan etnografi kolaborasi dengan disiplin ilmu ekologi. Sumber data dalam penelitian ini berupa peristiwa upacara sedekah bumi dan narasumber yang terdiri dari sesepuh Desa Lencoh. Observasi langsung dan wawancara mendalam digunakan untuk mengumpulkan data-data penelitian. Hasil penelitian menunjukkan bahwa salah satu bentuk mitigasi alam di wilayah Lereng Gunung Merapi dilakukan melalui upacara adat sedekah gunung. Rangkaian upacara sedekah gunung merupakan wujud ucapan rasa syukur kepada alam atas nikmat dan hasil alam yang diperoleh masyarakat. Dalam upacara sedekah gunung terdapat makna filosofi dan pesan-pesan ekologis yang tersirat dalam setiap wujud sesajennya, diantaranya adalah Jadah bakar memiliki arti bahwa masyarakat desa tidak melakukan tindakan pembakaran lahan sehingga ekosistem hayati tetap lestari. Hiasan-hiasan di setiap tumpeng memiliki arti bahwa keamanan selalu terjaga dengan tidak melakukan penebangan pohon yang masif sehingga hutan tetap lestari.
ANALISIS TECHNOLOGY ACCEPTANCE MODEL (TAM) PADA ADOPSI E-LEARNING PROGRAM STUDI TADRIS FISIKA UIN SAYYID ALI RAHMATULLAH TULUNGAGUNG MENGGUNAKAN STRUCTURAL EQUATION MODELLING (SEM) Dyah Ayu Malikatul Mukaromaha; Husni Cahyadi Kurniawan; Elok Fitriani Rafikasari
Media Bina Ilmiah Vol. 17 No. 2: September 2022
Publisher : LPSDI Bina Patria

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (341.146 KB) | DOI: 10.33578/mbi.v17i2.129

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E-learning is information technology and communication used in the learning process at UIN Sayyid Ali Rahmatullah Tulungagung. E-learning is used to replace face-to-face learning in full. The use of e-learning has not been maximally applied for various reasons, so an analysis of student perceptions of using e-learning is needed. The purpose of this research is to determine the level of acceptance of Tadris Physics students at UIN Sayyid Ali Rahmatullah Tulungagung on e-learning technology using the Technology Acceptance Model (TAM) structure as seen from Perceived Ease of use (PE) and Perceived Usefulness (PU). This research was conducted on 114 respondents who are students who use e-learning. Structural Equation Modelling (SEM) is used to data analysis. The result of this research shows that the variables that affect PE and PU are Training (T), Experience (E), and Facilitating Condition (FC).
Analysis of Students’ Problem-Solving Ability in Solving Science (Physics) Problems in Work Materials and Simple Aircraft Class VIII MTsN 2 Trenggalek Husni Cahyadi Kurniawan; Siti Fatimah; Ambar Sari
KONSTAN - JURNAL FISIKA DAN PENDIDIKAN FISIKA Vol 7 No 02 (2022): KONSTAN (Jurnal Fisika dan Pendidikan Fisika)
Publisher : Universitas Islam Negeri (UIN) Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20414/konstan.v7i02.104

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This study aims to describe students’ problem-solving abilities and percentages in solving science (physics) problems in Work materials and simple aircraft class VIII MTsN 2 Trenggalek. This research uses a qualitative approach with a descriptive type of research. The data collection techniques used are tests and interviews. The data analysis includes 3 stages: data reduction, data presentation, and conclusion. The results of the research on students’ problem-solving ability are based on the stages of the Polya model: (1) High-ability students have been able to meet all indicators of the Polya problem-solving stages by 82.99% in the very high category. (2) Moderately capable students can already meet all indicators of the problem-solving stages for Work questions. However, they are still less capable in simple aircraft questions, with a percentage of 64.58% being in the high category. (3) Low-ability students have not been able to meet all the indicators of the problem-solving stage, with 15.42% being in the deficient category. Students cannot understand problems, draw plans, execute plans, and look back. The reason is that students do not understand the material clearly, which impacts their problem-solving ability. The research showed that students’ problem-solving ability is in a suitable category with a percentage of 54.33%. The stage of understanding the problem includes the stages the student can achieve. Students are still underprivileged in the following three stages: drawing up a plan, implementing a plan, and looking back. Students still have difficulty determining the right strategy to solve problems in Work and simple aircraft questions.
PENGARUH MODEL PEMBELAJARAN PROBLEM BASED LEARNING (PBL) BERBANTUAN MIND MAPPING TERHADAP KEMAMPUAN BERPIKIR KRITIS MATERI GETARAN DI MTSN 5 TULUNGAGUNG Kurniawan, Husni Cahyadi; Nur Faizah Amilia; Gaguk Resbiantoro; Muhammad Luqman Hakim Abbas
JEAS (Journal of Educational and Applied Science) Vol. 1 No. 1 (2023): September 2023
Publisher : Tadris IPA Universitas KH. Mukhtar Syafaat Blokagung Banyuwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30739/jeas.v1i1.2515

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The purpose of this study was to find out the effect of the Problem Based Learning Model with mind mapping assistance on students' critical thinking skills on vibration material at MTsN 5 Tulungagung, and to determine the effect of the Problem Based Learning Model with mind mapping assistance on critical thinking skills on vibration material at MTsN 5 Tulungagung. This study uses a quantitative approach with a type of quasi-experimental research. The design form used is Pretest-posttest control group design, with class selection using cluster random sampling technique.  Data collection techniques using tests and documentation. The results of this study indicate that there is an effect between the Problem Based Learning learning model assisted by mind mapping on students' critical thinking skills on Vibration Material class VIII MTsN 5 Tulungagung with the acquisition of sig. (2-tailed) 0.00 <0.05 with the effect of the Problem Based Learning learning model assisted by mind mapping on the critical thinking skills of students in the Vibration Material of class VIII MTsN 5 Tulungagung of 0.7 or 76% classified as medium.
Pengembangan Bahan Ajar Fisika Berbasis Flipbook pada Materi Usaha dan Energi Paramarta, Fatwa; Kurniawan, Husni Cahyadi
JPFT (Jurnal Pendidikan Fisika Tadulako Online) Vol. 13 No. 2 (2025): JPFT (Jurnal Pendidikan Fisika Tadulako Online)
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/jpft.v13i2.4720

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Penelitian ini bertujuan mengembangkan bahan ajar fisika berbasis flipbook yang valid, praktis, dan efektif pada materi Usaha dan Energi. Latar belakang penelitian adalah rendahnya efektivitas pembelajaran fisika di SMA Negeri 1 Srengat. Metode yang digunakan adalah Research and Development (R&D) dengan model ADDIE. Subjek penelitian mencakup dua validator media, dua validator materi, serta peserta didik kelas X dan XI. Sampel uji kepraktisan melibatkan 33 peserta didik kelas XI, sedangkan uji efektivitas melibatkan 70 peserta didik kelas X yang dibagi dalam kelas eksperimen (34 peserta didik) dan kontrol (36 peserta didik). Desain eksperimen yang digunakan adalah posttest only control group design. Teknik pengumpulan data meliputi wawancara, angket, dan tes. Hasil validasi menunjukkan skor rata-rata 3,80 (sangat valid), dan uji kepraktisan menghasilkan skor 3,54 (sangat praktis). Uji efektivitas menunjukkan perbedaan signifikan antara kedua kelas, dengan nilai effect size sebesar 1,349 (kategori tinggi). Hasil tersebut menunjukkan bahwa flipbook efektif meningkatkan pemahaman dan hasil belajar peserta didik.