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PEMBANGKITAN LUCUTAN PIJAR KORONA NEGATIF PADA KONDISI ATMOSFER DAN PENGARUHNYA TERHADAP RESAPAN AIR PADA KAIN KATUN DAN POLIESTER GREY Muhlisin, Zaenul; Prastiwi, Dhyan; Darliawati, Herli; Tayibnapis, Achmad Sjaifudin; Arianto, Fajar; Wardaya, Asep Yoyo; Sumariyah, Sumariyah; Nur, Muhammad
Arena Tekstil Vol 32, No 2 (2017)
Publisher : Arena Tekstil

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Abstract

Pada penelitian ini akan diungkapkan tentang lucutan korona negatif pada kondisi atmosfer dan bagaimana pengaruhnya terhadap sifat resapan air di kain poliester grey. Tujuan dari penelitian ini adalah membandingkan pembangkitan lucutan pijar korona negatif dengan dua jenis elektroda yang berbeda geometri dan mengamati sifat serapan air pada kain poliester grey yang telah diiradiasi dengan lucutan ini. Pembangkitan lucutan korona negatif pada kondisi atmosfer ini dilakukan dengan menggunakan dua jenis geometri elektroda, yaitu elektroda titik-bidang dan elektroda garis-bidang. Elektroda titik maupun garis diperlakukan sebagai katoda dan elektroda bidang diperlakukan sebagai elektroda anoda. Pengukuran beda potensial dan arus menggunakan multimeter digital. Iradiasi kain dilakukan dengan menempatkan kain katun maupun poliester pada elektroda bidang. Uji tetes dilakukan untuk mendapatkan karakter serapan air terhadap kain yang telah diiradiasi. Lucutan yang dibangkitkan pada kondisi atmosfer akan meningkat arusnya ketika diberi penambahan tegangan. Karakteristik lucutan saat kain berada anoda sedikit berbeda bila dibandingkan tanpa adanya kain, namun pola lucutan masih relatif sama. Pada uji tetes menunjukkan bahwa lucutan korona negatif pada kain poliester maupun katun berpengaruh pada penurunan waktu serap. Selain itu, durasi iradiasi terhadap kain sangat berpengaruh terhadap penurunan waktu serap air di kain katun maupun poliester. Penurunan mencolok terlihat pada kain poliester grey dimana sebelumnya 16 detik menjadi kurang dari 2 detik.
STUDY OF ELECTROOPTICS BEHAVIOUR OF NAPHTHALENE AND ANTHRACENE Firdausi, K Sofjan; Khumaeni, Ali; Richardina, Very; Arianto, Fajar; Budi, Wahyu Setia
BERKALA FISIKA 2015: Berkala Fisika Vol. 18 No. 3 Tahun 2015
Publisher : BERKALA FISIKA

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Abstract

In this paper, we demonstrate electro-optics behaviour of naphthalene and anthracene using change of polarization of sample induced by external electric field. The source of light for polarization was 1 mW-he-ne Laser 633 nm. The induced external Electric field was produced by high DC voltage 0 – 7 kV. The samples were diluted in solutions-form using wash-benzene. The result shows that anthracene has higher polarizability than naphthalene, which is indicated by higher change of polarization in anthracene than naphthalene. The Assumption that potential difference is proportional to the distance between molecules is shown qualitatively by graphs of Van der Waals potential energy or force between molecules. In this case, anthracene has higher level Energy than naphthalene so that it can be used in visible excitation for environmental spectroscopy. Keywords: electro-optics, polarization, naphthalene, anthracene, Van der Waals potential energy 
KARAKTERISASI REAKTOR PLASMA BERARUS NEGATIF DENGAN KONFIGURASI ELEKTRODA TITIK-BIDANG DAN PENERAPANNYA PADA KAIN POLYESTER RAJUT GREY Hasan, Siti Nurjannah; Muhlisin, Zaenul; Triadyaksa, Pandji; Arianto, Fajar
BERKALA FISIKA Vol 22, No 1 (2019): Berkala Fisika Vol. 22 No. 1 Tahun 2019
Publisher : BERKALA FISIKA

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Abstract

Research on characterisations of plasma reactor with negative current of square-point electrode configuration and its application on grey polyester knit fabric has been carried out. The objectives of this reseach were obtaining characterisation of negative plasma reactor, either with or without sample of the polyester knit fabric, getting ion mobility value, gaining the characterisation of irradiated polyester knit fabric of grey, and obtaining SEM results indicating the morphological changes of the fabric. A Plasma-Electrode Point Plasma reactor which is connected to a high-voltage DC power plant was used in this study. The size of pointfield electrodes was 15 x 15 cm2 with a 1.6 cm needle. The size of the grey knit polyester fabric used was 10 x 10 cm2. Variations in distance between electrodes were 1.5 cm, 1.8 cm, 2.1 cm 2.4 cm, 2.7 cm, 3.0 cm, and 3.3 cm. The results have shown that if the voltage increases, then the current value increses. The voltage which is needed to produce a lower current values is that the presence of a polyester knit fabric of grey. The highest voltage and current values witout sample can be found at a distance of 3.3 cm with a current value of 2.5 mA at a voltage of 3.027 kV, compared with presence of a sample, a current value of 1.6 mA at a voltage of 3.445 kV. The greater distance of the electrode, the smaller ion of the mobility is achieved. Based on the results of the water drop test showed that the longer the irradiation of the cloth, the faster duration of absorption. This is indicated by a distance of 2.4 cm in the duration of 5 minutes obtained the absorption time of 2.15 seconds while in the duration of 35 minutes obtained 1.47 seconds. In the SEM test, it is used 2 cloths where the first cloth used as a control or not subjected to plasma that has little damage where as the second fabric is subjected to plasma treatment with the time of irradiation is about 20 minutes that have damage or peeling on the surface of polyester knit fabrics grey.Keywords: Plasma corona, multi-point field, ion mobility, polyester fabric, textile treatment, the meeting properties of fabric.
PENGEMBANGAN MEDIA CAI (COMPUTER ASSISTED INSTRUCTION) UNTUK MATA PELAJARAN ILMU PENGETAHUAN ALAM PADA MATERI POKOK SISTEM PENCERNAAN PADA MANUSIA PADA KELAS VIII DI SMP NEGERI 2 SIDOARJO ALFINA RAHMAWATI, DIAN; ARIANTO, FAJAR
Jurnal Mahasiswa Teknologi Pendidikan Vol 9, No 2 (2018): Volume 9 Nomer 2 Tahun 2018
Publisher : Jurnal Mahasiswa Teknologi Pendidikan

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Abstract

Abstrak Penelitian ini bertujuan untuk mengembangkan media CAI pada mata pelajaran Ilmu Pengetahuan Alam untuk siswa kelas VIII SMPN 2 Sidoarjo, serta layak dan efektif bagi proses belajar siswa. Model yang digunakan dalam pengembangan yang digunakan dalam mengembangkan CAI yaitu menggunakan model ADDIE. Penelitian ini termasuk jenis penelitian pengembangan dengan model membandingkan kelompok eksperimen dan kontrol. Metode pengumpulan data yang digunakan adalah observasi, angket, tes, dan dokumentasi. Jenis data yang diperoleh berupa data kualitatif dan kuantitatif. Hasil uji kelayakan media CAI hasil pengembangan pada uji coba ahli materi I dan II mendapatkan presentase sebesar 97,5% termasuk dalam kategori sangat baik. Ahli media I dan II mendapat presentase sebesar 94% termasuk dalam kategori sangat baik. Uji coba perseorangan 95,8% termasuk dalam kategori sangat baik, uji coba kelompok kecil dengan presentase 92,5% termasuk dalam kategori sangat baik, dan uji coba kelompok besar dengan presentase 90,9% termasuk dalam kategori sangat baik. Dapat disimpulkan bahwa media CAI dalam mata pelajaran Ilmu Pengetahuan Alam dinyatakan layak untuk digunakan dalam proses pembelajaran. Dari hasil analisis data diketahui bahwa ada perubahan nilai sebelum dan sesudah menggunakan media CAI pada mata pelajaran Ilmu Pengetahuan Alam materi pokok Sistem Pencernaan pada Manusia, sehingga dapat disimpulkan bahwa media CAI efektif digunakan dalam proses pembelajaran. Kata kunci: Media CAI, Ilmu Pengetahuan Alam, Efektivitas media Abstract The purposes of this research develop the media CAI on the subjects of Natural Sciences for students of grade VIII SMPN 2 Sidoarjo, as well as decent and effective for student learning process. The development model used in media CAI is using ADDIE model (Analysis, Design, Development, Evaluation). The research is kind of development with the model research that compare between eksperimental group and control group. Data collection method that be used is observation, questionnaire, test, and documentation. The data will be both qualitative and quantitative data. The resut of eligibility test of media CAI from material experts I and II got 97,5% is in very good category, media expert I and II got 94% is in very good category. Individual test got 95,8%is in very good, small group test 92,5% is in very good category, and bigger group test got 90,9% is in very good category. So it can be conclude that media CAI as subject of natural sciences has been qualified to be used in teaching learning process. From the result of data analysis above, it is known that there are differences between before and after using media CAI as subject of natural sciences subject matter digestive system in humans, so it can be concluded that CAI media is effective used in learning process Keywords: Development, CAI, Natural Sciences. Media Effectiveness
PENGARUH PENERAPAN MODEL PEMBELAJARAN KOOPERATIF TIPE TEAM-GAMES-TOURNAMENT (TGT) PADA MATA PELAJARAN IPS UNTUK MENINGKATKAN MOTIVASI BELAS SISWA KELAS VIII SMP DI KOTA MALANG PUSPITA WIRASARI, ENGGAL; ARIANTO, FAJAR
Jurnal Mahasiswa Teknologi Pendidikan Vol 9, No 2 (2018): Volume 9 Nomer 2 Tahun 2018
Publisher : Jurnal Mahasiswa Teknologi Pendidikan

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Abstrak Tujuan dari penelitian ini adalah (1) Untuk mengetahui proses penerapan model pembelajaran tipe team games tournament (TGT) dalam pembelajaran IPS kelas VIII SMP di Kota Malang. (2) Untuk mengetahui pengaruh penerapan model pembelajaran model tipe team games tournament (TGT) terhadap motivasi belajar siswa kelas VIII SMP di Kota Malang. Metode pada penelitian ini adalah metode kuantitatif. Pengumpulan data menggunakan angket untuk mengetahui motivasi siswa. Analisis data menggunakan rumus PSA skala likert dan Uji One-way Anava. Berdasarkan hasil dari analisis data angket siswa dapat disimpulkan bahwa motivasi siswa termasuk dalam kategori baik. Sedangkan hasil analisis data motivasi belajar dengan menggunakan model pembelajaran team-games-tournament (TGT) dapat meningkatkan motivasi belajar, hal ini dapat dibuktikan dengan hasil uji One-Way Anava Fhitung 5,421 > Ftabel 3,91 maka dapat dikatakan bahwa model pembelajaran team-games-tournament (TGT) dapat meningkatkan motivasi belajar. Kata kunci: Model Pembelajaran, TGT, IPS, Motivasi BelajarAbstract The objectives of this research is (1) to give illustration about the process of applying Cooperative instruction model type team games tournament (TGT) on social sciences material eight grade of Junior High School in Malang. (2) to know the effect of cooperative instruction model type TGT to the students learning motivation on social sciences subject eight grade of Junior High School in Malang. The research method that was used is quantitative method. The data was gathered by using questionnaire to know the students learning motivation The data analysis used likert scale PSA formula and One-way Anava Test. Based on the results of data student questionnaire, data analysis it can be concluded that the students motivation included in good category. Beside, the result of data analysis of learning motivation by using team-games-tournament (TGT) can improve learning motivation, this can be proved by One-Way Anava test result Fcount 5,421 > Ftable. Therefore, it can be concluded that cooperative learning instruction model type TGT can improve the learning motivation. Keywords: Instruction Model, TGT, Social Sciences, Learning Motivation.
PENGARUH RADIASI PLASMA DAN PUPUK KANDANG KAMBING TERHADAP PERTUMBUHAN BAWANG MERAH VARIETAS BIMA BREBES Anitasari, Emi; Prihastanti, Erma; Arianto, Fajar
BIOLINK : Jurnal Biologi Lingkungan Industri Kesehatan Vol 6, No 2 (2020): Februari
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/biolink.v6i2.2639

Abstract

Shallot variety of Bima Brebes is a shallot variety that is widely cultivated by farmers in Indonesia because it is easy to grow and adapt to the local environment. However, in reality many farmers use the previous harvest for the next planting seed so that the yields obtained will be of poor quality. This study aims to determine the effect of giving nitrogen through corona incandescent plasma discharge and goat fertilizer on the growth of shallots so that it can improve the quality of onion seedlings. This study used a Completely Randomized Design (CRD) with a factorial pattern using a corona incandescent plasma discharge factor and goat manure. The results showed an interaction between the two factors that can be seen from the plant height parameters which showed significant results in the treatment of plant seeds that were plasma radiation for 30 minutes and the planting media were given goat manure 65 g. Based on the results of the study it can be concluded that the administration of corona incandescent plasma discharge and goat manure on the cultivation of shallots varieties of Bima Brebes was able to accelerate the time of sprouting by 200.3% and increase the growth of onion plants.
The Development of Mobile Learning Media for Excretion System Material for VIII Graders of SMPN 1 Taman Sidoarjo Chrisdian, Viddo; Masitoh, Siti; Arianto, Fajar
International Journal for Educational and Vocational Studies Vol 1, No 8 (2019): December 2019
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/ijevs.v1i8.1856

Abstract

The acceleration of 4.0 industrial revolution caused the development of digital era developed rapidly, therefore, learning resources can be accessed everwhere and everytime. Since the learning sources are easy to find,  the teachers are required to change the learning pattern into a learning facilitator that the focus is to give the appropriate learning resources for students based on their needs. According to the results of the interviews, there is a learning problem shows that the student learning outcomes in the excretion system material for class VIII SMP in SMPN 1 Taman Sidoarjo is still low. For this reason, it is necessary to develop a mobile learning media material excretion system that is feasibly and effectively used by students of VIII graders at SMPN 1 Taman Sidoarjo. The development model used is R&D Models from Walter Dick and Lou Carey.The data collection methods used were from questionnaire and test. Based on the trial results and data analysis, there are several conclusions, the results of the feasibility test of mobile learning media from the experts of material and media obtained a very good category.The individual trial obtained an excellent category, which is 90%, the percentgage of small group trials  is 90% and categorized as excellent, whereas the percentahe of the field trials is 89% and included in the excellent category. It can be concluded that the mobile learning media is suitable to use in the learning process. While the t-test with db = N - 1 = 33 - 1 = 32 and a significant level is 5%. Then the value of t table = 2.037 and tcount is 5.49. T arithmetic <t table (5.49> 2,037), therefore, the headway of media has been effective in improving student learning outcomes in class X of SMAN 1 Taman Sidoarjo on excretion system material.
Enhancing the Concept of Numbers in Kindergarten with Graphic Media and Montessori Approachment Rety, Dahniarti Cahyani; Masitoh, Siti; Arianto, Fajar
International Journal for Educational and Vocational Studies Vol 2, No 1 (2020): January 2020
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/ijevs.v2i1.2021

Abstract

The background of this study by the achievement of cognitive development in this case the introduction of the concept of numbers has not been achieved. Problems that exist in group A Christian kindergarten LOGOS, when spelling out there are still children who haven't spelled out exactly, there are objects that are missed when spelling out and have not been able to show many objects in accordance with the symbol numbers, especially numbers 5, 6, 7, 8, 9, 10, this happens because there is no media in accordance with the theme of the lesson (land animals) and the method used is still in the form of assignments. The purpose of this study is to describe the increase in children's ability to recognize the concept of numbers through the use of graphic media and three-stage learning methods in the learning process. This study uses a class action research (CAR) method which is carried out in two cycles. Each cycle consists of four stages, namely the planning stage, the implementation phase, the observation and reflection stage. The subjects of the study were children of Group A Christian LOGOS Kindergarten consisting of 17 children. Data collection techniques in this study through observation and documentation. The results of the first cycle and second cycle of research showed an increase. The results showed that the use of graphic media and three-stage learning methods can improve the ability of children to recognize the concept of numbers, especially the numbers 5, 6, 7, 8, 9, 10 in group A children of Christian Kindergarten LOGOS.
PENGEMBANGAN BUKU INTERAKTIF OPERASI HITUNG PADA MATA PELAJARAN MATEMATIKA UNTUK SISWA BERKEBUTUHAN KHUSUS SLOW LEARNER KELAS 3 DI SDN KETINTANG 2 SURABAYA AMALIA WAHYUNINGTYAS, ISTI; ARIANTO, FAJAR
Jurnal Mahasiswa Teknologi Pendidikan Vol 10, No 19 (2020)
Publisher : Jurnal Mahasiswa Teknologi Pendidikan

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Abstract

Tujuan penelitian pengembangan ini yaitu 1 untuk mengembangkan buku interaktif yang layak pada Materi pecahan dasar Mata Pelajaran Matematika di SDN Ketintang 2 Surabaya 2 untuk mengetahui tingkat keefektifan buku interaktif pada Materi pecahan dasar Mata Pelajaran Matematika di SDN Ketintang 2 Surabaya Model pengembangan yang digunakan adalah model 4D dari Thiagarajan dengan 4 tahapan yaitu Define Design Develop Disseminate yang dimana penelitian ini hanya sampai pada tahap 3 yaitu Develop Pengumpulan data penelitian ini menggunakan wawancara angket dan tes untuk mengetahui tingkat kelayakan dan tingkat keefektifan buku interaktif yang dikembangkan pada pembelajaran terkait Jenis data dalam penelitian ini berupa data kualitatif dan kuantitatif Teknik wawancara dan angket digunakan untuk memperoleh data kualitatif tentang kelayakan buku interaktif sedangkan teknik tes digunakan untuk memperoleh data kuantitatif tentang hasil belajar siswa Slow Learner kelas III SDN Ketintang 2 Surabaya Teknik analisis data pada penelitian pengembangan ini menggunakan NonParametric dengan uji Willcoxon Berdasarkan analisis data hasil uji kelayakan buku interaktif pada ahli materi I dan II ahli media I serta uji coba yang diterapkan pada peserta didik dapat dikategorikan sangat baik Sehingga disimpulkan bahwa buku interaktif pada Materi Pecahan Dasar pada mata pelajaran Matematika telah layak untuk digunakan siswa Slow Learner dalam proses pembelajaran di SDN Ketintang 2 Surabaya Selanjutnya hasil analisis Uji Willcoxon yang membandingkan dari hasil nilai pretest dan posttest yang dilakukan pada siswa Slow Learner kelas III SDN Ketintang 2 Surabaya didapatkan Zhitung 2 36 lebih besar dari Ztabel 1 96 dengan krisis 5 persen dan n sama dengan 7 maka Zhitung 3 36 lebih besar dari tabel 1 96 Sehingga dapat disimpulkan bahwa media buku interaktif operasi hitung pada Materi Pecahan Dasar Mata Pelajaran Matematika telah efektif untuk digunakan dalam proses pembelajaran di SDN Ketintang 2 Surabaya Kata Kunci Pengembangan Buku Interaktif Pecahan Dasar Matematika Slow Learner
PENGEMBANGAN E-MODUL CITRA BITMAP UNTUK SISWA KELAS XI MULTIMEDIA DI SMK INFORMATIKA “SUMBER ILMU” TULANGAN FAUZI ADHIM, MUHAMMAD; ARIANTO, FAJAR
Jurnal Mahasiswa Teknologi Pendidikan Vol 10, No 21 (2020)
Publisher : Jurnal Mahasiswa Teknologi Pendidikan

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Abstract

Tujuan dari penelitian pengembangan ini adalah untuk menghasilkan produk media e-modul yang layak digunakan dalam pembelajaran pada mata pelajaran Pengolahan Citra Digital materi Citra Bitmap kelas XI Multimedia di SMK Informatika ?Sumber Ilmu? Tulangan. Model pengembangan yang digunakan yakni model ADDIE (Analyze, Design, Development, Implementation, Evaluation). Pada uji kelayakan media, teknik pengumpulan data menggunakan angket serta wawancara yang diberikan kepada 2 orang ahli materi (1 dosen jurusan Desain Komunikasi Visual Universitas Negeri Surabaya dan 1 guru produktif jurusan multimedia SMK) 2 orang ahli media (2 dosen jurusan Kurikulum &amp; Teknologi Pendidikan Universitas Negeri Surabaya). Teknik analisis data menggunakan skala Gutman, hasil analisa data yang diperoleh dapat dikatakan bahwasanya media e-modul Citra Bitmap untuk siswa kelas XI Multimedia di SMK Informatika ?Sumber Ilmu? Tulangan layak untuk digunakan sebagai media pembelajaran. E-modul yang telah dikembangkan oleh peneliti mempunyai beberapa kelebihan antara lain hemat dalam aspek pembiayaan, kemenarikan media dan pendistribusian. E-module memberikan banyak kemudahan terhadap penggunanya, materi yang disajikan didalam e-module bisa diakses dimanapun tanpa adanya keterbatasan waktu serta waktu. Selain itu, e-module yakni bahan ajar yang bisa digunakan secara mandiri oleh penggunanya tanpa harus adanya instruktur yang mendampingi. E-module dapat diakses oleh siswa maupun guru melalui Laptop (PC) maupun Smartphone, hal tersebut memberikan kemudahan bagi guru dan siswa untuk memahami materi dan keterampilan baik pembelajaran di dalam kelas maupun pembelajaran diluar kelas. Kata Kunci: Pengembangan, E-modul, Citra bitmap.