Vol. 7 No. 2 (2018): October 2018

Articles

• Potential Makroalga on the Beach Karapyak to the Development of Power Stations Biogas Seaweed (Seawees Biogas Power Plant)

  Egi Nuryadin (Jurusan Pendidikan Biologi Fakultas Keguruan dan Ilmu Pendidikan Universitas Siliwangi Tasikmalaya, Indonesia)

  68-70

  Abstract View : 35

  PDF downloads: 51

  DOI : 10.21831/jsd.v7i2.21755

  • PDF

• A Possibility of Real Time Earthquake Magnitude Determination using GPS for Tsunami warning System in Indonesia

  Sulastri Sulastri (BMKG, Indonesia)
  Buldan Muslim (Pusat Sains Atmosfer LAPAN, Indonesia)
  Bambang Sunardi (Pusat Penelitian dan Pengembangan BMKG, Indonesia)
  Supriyanto Rohadi (Pusat Penelitian dan Pengembangan BMKG, Indonesia)
  Yusuf Hadi Perdana (Pusat Penelitian dan Pengembangan BMKG, Indonesia)
  Muzli Muzli (1Pusat Penelitian dan Pengembangan BMKG & Earth Observatory of Singapore, Indonesia)
  Susilo Susilo (Badan Informasi Geospasial, Indonesia)
  Jonny Effendi (Badan Informasi Geospasial, Indonesia)

  71-76

  Abstract View : 42

  PDF downloads: 23

  DOI : 10.21831/jsd.v7i2.21258

  • PDF

• Program Linear Bilangan Fuzzy Segitiga pada Studi Kasus Optimasi Produksi Roti "KG Bakery"

  Yan Isnaeni Almatsya (Department of Mathematics, Faculty of Mathematics and Natural Sciences, Universitas Negeri Yogyakarta, Indonesia)
  Karyati Karyati (Department of Mathematics, Faculty of Mathematics and Natural Sciences, Universitas Negeri Yogyakarta, Indonesia)

  77-81

  Abstract View : 94

  PDF downloads: 59

  DOI : 10.21831/jsd.v7i2.26915

  • PDF

• Voltamogram Stainless Steel/Fe-Co-Ni dalam Media Tepung Ubi Jalar (Ipomoea batatas L.)

  Isana Supiah Yosephine Louise (Department of Chemistry, Faculty of Mathematics and Natural Science, Universitas Negeri Yogyakarta, Indonesia)
  Heru Pratomo Aloysius (Department of Chemistry, Faculty of Mathematics and Natural Science, Universitas Negeri Yogyakarta, Indonesia)
  Sulistyani Sulistyani (Department of Chemistry, Faculty of Mathematics and Natural Science, Universitas Negeri Yogyakarta, Indonesia)

  82-86

  Abstract View : 35

  PDF downloads: 44

  DOI : 10.21831/jsd.v7i2.11943

  • PDF

• Distribusi Energi Celah Pita Titania (TiO2) yang Disisipi Logam Cu atau Fe, serta Potensi Aplikasinya aalam Sel Surya

  Rita Prasetyowati (Jurusan Pendidikan Fisika, Fakultas MIPA, Universitas Negeri Yogyakarta, Indonesia)
  Ariswan Ariswan (Jurusan Pendidikan Fisika, Fakultas MIPA, Universitas Negeri Yogyakarta, Indonesia)
  Laila Katriani (Jurusan Pendidikan Fisika, Fakultas MIPA, Universitas Negeri Yogyakarta, Indonesia)

  87-94

  Abstract View : 33

  PDF downloads: 29

  DOI : 10.21831/jsd.v7i2.38547

  • PDF

• Peramalan Harga Saham Berdasarkan Jaringan Syaraf Fuzzy Elman Recurrent dengan Optimasi Evolutif

  Rosita Kusumawati (Program Studi Matematika, Jurusan Pendidikan Matematika, FMIPA, Universitas Negeri Yogyakarta, Indonesia)
  Dhoriva Urwatul Wutsqa (Program Studi Matematika, Jurusan Pendidikan Matematika, FMIPA, Universitas Negeri Yogyakarta, Indonesia)
  Retno Subekti (Program Studi Matematika, Jurusan Pendidikan Matematika, FMIPA, Universitas Negeri Yogyakarta, Indonesia)

  95-102

  Abstract View : 34

  PDF downloads: 45

  DOI : 10.21831/jsd.v7i2.38548

  • PDF

• The Effect of Bamboo's Root PGPR Concentration and Row Spacing on Growth and Yield of Kidney Bean (Phaseolus vulgaris)

  R. Budiasih (Departement of Agrotechnology, Faculty of Agriculture, Winaya Mukti University, Indonesia)
  Lia Amalia (Departement of Agrotechnology, Faculty of Agriculture, Winaya Mukti University,, Indonesia)
  Yuli Nurfatwa (Departement of Agrotechnology, Faculty of Agriculture, Winaya Mukti University,, Indonesia)

  103-110

  Abstract View : 33

  PDF downloads: 13

  DOI : 10.21831/jsd.v7i2.38550

  • PDF

• Model Development of NIí‘O 3.4 and Indian Ocean Dipole (IOD) Anomalies Teleconnection

  Antonni Saputra (Physics Study Programs at Yogyakarta State University, Indonesia)
  Eddy Hermawan (Center of Atmospheric Science and Technology at National Institute of Aeronautics and Space, Indonesia)
  Denny Darmawan (Physics Study Programs at Yogyakarta State University, Indonesia)

  111-116

  Abstract View : 37

  PDF downloads: 20

  DOI : 10.21831/jsd.v7i2.38551

  • PDF

• Analisa Resiko Bahaya Seismik Berdasarkan Parameter Ketebalan Lapisan Sedimen dan Faktor Amplifikasi di Kecamatan Prambanan dan Gantiwarno

  Nugroho Budi Wibowo (BMKG Stasiun Geofisika Yogyakarta, Indonesia)
  Denny Darmawan (Program Studi Fisika, FMIPA, Universitas Negeri Yogyakarta, Indonesia)
  Zahroh Utami (Program Studi Fisika, FMIPA, Universitas Negeri Yogyakarta, Indonesia)
  Siti Patimah (Program Studi Fisika, FMIPA, Universitas Negeri Yogyakarta, Indonesia)

  117-123

  Abstract View : 38

  PDF downloads: 50

  DOI : 10.21831/jsd.v7i2.38553

  • PDF

• Sintesis dan Karakterisasi Senyawa Perovskite BaSnO3 melalui Metode Sol-Gel untuk Aplikasi Sel Surya

  Erna Warisman (Program Studi Pendidikan Kimia, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Negeri Yogyakarta, Indonesia)
  Cahyorini Kusumawardani (Program Studi Pendidikan Kimia, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Negeri Yogyakarta, Indonesia)

  124-129

  Abstract View : 50

  PDF downloads: 119

  DOI : 10.21831/jsd.v7i2.38554

  • PDF