SCIENCE TECH: Jurnal Ilmiah Ilmu Pengetahuan dan Teknologi
Jurnal SCIENCE TECH adalah jurnal yang diterbitkan oleh Lembaga Penelitian dan Pengabdian kepada Masyarakat (LP2M) Universitas Sarjanawiyata Tamansiswa (UST) Yogyakarta. Jurnal ini diharapkan sebagai media bagi dosen, peneliti, praktisi, mahasiswa dan masyarakat luas yang memiliki perhatian terhadap bidang dan perkembangan ilnu pengetahuan dan teknologi. Jurnal SCIENCE TECH terbit dua kali setahun yaitu Januari dan Agustus, setiap terbit 8 artikel.
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107 Documents
<![CDATA[PERAN PROGRAM PEMBERDAYAAN MUSYAWARAH GURU MATA PELAJARAN ILMU PENGETAHUAN ALAM (MGMP IPA) DALAM ]]>
<![CDATA[Asep Agus Sulaeman]]>
<![CDATA[ Science Tech: Jurnal Ilmu Pengetahuan dan Teknologi Vol 2 No 2 (2016): Agustus ]]>
Publisher : <![CDATA[Universitas Sarjanawiyata Tamansiswa ]]>
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DOI: 10.30738/jst.v2i2.377
<![CDATA[Tujuan penelitian ini adalah mengetahui peran program pemberdayaan MGMP guru IPA dalam: 1) Memberdayakan pengurus MGMP dalam mengembangkan program peningkatan kompetensi guru IPA SMP; 2)Meningkatkan kompetensi guru IPA SMP. Kajian ini juga bertujuan untuk mengetahui respons guru terhadap pelaksanaan programdiklat peningkatan kompetensi yang dikembangkan pengurus MGMP. Subyek penelitian ini adalah 30 orang yang terdiri atas 1 orang pengurus, satu orang guru inti, satu orang kepala sekolah, satu orang pengawas, dan dua puluh enam orang guru anggota MGMP Jakarta Timur. Kajian dilakukan pada bulan Maret s.d. April 2015. Kajian inimenggunakan metode deskriptif, yaitu menggambarkan kemampuan pengurus MGMP dalam mengembangkan program peningkatan kompetensi guru dan persepsi guru terhadap peningkatan kompetensinya, serta menggambarkan respons guru terhadappelaksanaan program diklat. Data diperoleh dengan mengkaji dokumen program diklat serta bahan ajar yang dikembangkan pengurus dan guru inti, mengkaji jurnal belajar yang disusun oleh guru, serta pengisian kuesioner respons oleh guru. Data yang diperoleh dianalisis secara deskriptif kualitatif dan kuantitatif. Berdasarkan hasil kajian menunjukkan bahwa kemampuan pengurus dan guru inti masih belum optimal dalam mengembangkan program PKB secara mandiri untuk anggotanya sehingga masih memerlukan bantuan profesional dari lembaga diklat guru IPA. Adapun persepsi guru setelah mengikuti kegiatan diklat di MGMP, mereka merasakan peningkatan pengetahuan dan keterampilan di bidang materi subjek maupun pedagogi sehingga merasakan manfaatnya untuk dapat diaplikasikan dalam pembelajaran di sekolah. Para guru jugamemberikan respons yang baik untuk program, fasilitator, dan proses pelaksanaan program.]]>
<![CDATA[ALJABAR-C* DAN KEUNIKAN NORM C* ]]>
<![CDATA[Trisno Ikhwanudin]]>
<![CDATA[ Science Tech: Jurnal Ilmu Pengetahuan dan Teknologi Vol 3 No 2 (2017): Agustus ]]>
Publisher : <![CDATA[Universitas Sarjanawiyata Tamansiswa ]]>
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DOI: 10.30738/jst.v3i2.1619
<![CDATA[Misalkan A sebuah aljabar Banach*. A disebut aljabar-C* jika memenuhi identitas: , untuk setiap . Pada tulisan ini akan dibahas sifat – sifat aljabar-C* beserta contoh dan keunikan normnya.]]>
<![CDATA[APLIKASI METODE QUALITY FUNCTION DEPLOYMENT DALAM PENGEMBANGAN DESAIN ALAT BANTU MAKAN BAGI PENDERITA TUNA DAKSA ]]>
<![CDATA[Emmy Nurhayati]]>
<![CDATA[ Science Tech: Jurnal Ilmu Pengetahuan dan Teknologi Vol 3 No 1 (2017): Februari ]]>
Publisher : <![CDATA[Universitas Sarjanawiyata Tamansiswa ]]>
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DOI: 10.30738/jst.v3i1.1132
<![CDATA[Humans who has a perfect physical can easily perform daily activities, one of which is eating. For upper limb disabled people, eating activity is very difficult. This research is for create and develop of assistive tool for eat that can meet the needs of users (upper limb disabled people), technical requirements, convenience of usability, ergonomic assistive tool for eat . The method used to create and develop of assistive tool for eat (Adjusted Spoon V2) is the Quality Function Deployment (QFD). Based on House of Quality (HOQ) matrix results, the first technical requirement is the motion mechanisms (priority 52.44%), second is spring (38.64% priority), third is digitalization (priority 8.92%). The results of this research are Adjusted Spoon V2 prototype that developed to be able to meet the needs of upper limb disabled people in eating activities that include spoon movement flexibility, stick movement flexibility and treadle flexibility, making it easier for them to operate it.]]>
<![CDATA[PERSAMAAN PERTAMA MAXWELL RELATIVISTIK BINTANG NEUTRON YANG BEROTASI CEPAT BINTANG NEUTRON YANG BEROTASI CEPAT DIUKUR OLEH PENGAMAT ZAMO (ZERO ANGULAR MOMENTUM OBSERVERS) ]]>
<![CDATA[Atsnaita Yasrina]]>
<![CDATA[ Science Tech: Jurnal Ilmu Pengetahuan dan Teknologi Vol 2 No 1 (2016): Februari ]]>
Publisher : <![CDATA[Universitas Sarjanawiyata Tamansiswa ]]>
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DOI: 10.30738/jst.v2i1.439
<![CDATA[Neutron star is an object in Milky Way that is studied relativistically using general relativity theory. One of the fields of study of the Neutron Star is the reduction of its magnetic field. Therefore, the equation of magnetic field dynamic is needed to show the reduction of magnetic field in the Neutron Star. The equation formula of magnetic field dynamic can be drawn from the first equation of Maxwell’s relativistic. If the Neutron Star being studied is rotating, it is important to use ZAMO (Zero Angular Momentum Observers) base. The first Maxwell’s relativistic on the Neutron Star rotating quickly has been formulated and was measured by ZAMO observer. The equation drawn was only limited on deferential equation in radial, polar, and azimuth components]]>
<![CDATA[PENGEMBANGAN WEBSITE PROGRAM STUDI DALAM UPAYA PENINGKATAN PELAYANAN AKADEMIK MAHASISWA PENDIDIKAN TEKNIK MESIN UNIVERSITAS SARJANAWIYATA TAMANSISWA ]]>
<![CDATA[Setuju Setuju]]>
<![CDATA[ Science Tech: Jurnal Ilmu Pengetahuan dan Teknologi Vol 2 No 1 (2016): Februari ]]>
Publisher : <![CDATA[Universitas Sarjanawiyata Tamansiswa ]]>
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DOI: 10.30738/jst.v2i1.397
<![CDATA[This research aims to develop a website product for the Mechanical Engineering Education Department that is suitable for academic service. It is very important to do in order to improve the service quality of the Mechanical Engineering Education Department to realize its vision and mission and also to give beneficial effect in improving the accreditation status of the department. The design of this research is Research and Development of 4D model. The steps of 4D model includes: define, design, develop, and disseminate. The define step aims to collect various information related to the product to develop. The design step aims to prepare the design of first product. The develop step aims to produce a suitable website. The disseminate step is the last step in developing the product. The subject of this research consisted of two parties; they are validator (website experts) who validated the website and students of the Mechanical Engineering Education Department of Sarjanawiyata Tamansiswa University. The instruments used to collect the research data are validation sheet of the suitability of website product and questionnaire for student satisfaction of academic service. The data analysis used descriptive quantitative and qualitative techniques. The Website of the Mechanical Engineering Education Department that has been developed is in good category, so it has been suitable for public access. The website can be accessed through: http://ptm.ustjogja.ac.id. The website gives students academic service satisfaction in a very good category.]]>
<![CDATA[EKSPERIMEN GAYA GESEK UNTUK MENGUJI NILAI KOEFISIEN GESEKAN STATIS KAYU PADA KAYU DENGAN PROGRAM MATLAB ]]>
<![CDATA[Puji Hariati Winingsih]]>;
<![CDATA[Hidayati Hidayati]]>
<![CDATA[ Science Tech: Jurnal Ilmu Pengetahuan dan Teknologi Vol 3 No 2 (2017): Agustus ]]>
Publisher : <![CDATA[Universitas Sarjanawiyata Tamansiswa ]]>
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DOI: 10.30738/jst.v3i2.1919
<![CDATA[This study aims at designing tools to test the coefficient of static timber friction on wood through friction force experiments. Crafting force experiments have been developed to determine the coefficient of static timber friction coefficient on wood. The data was collected 10 times each mass variation and obtained friction force data (fs). The data analysis used a weighted linear regression with REGLIN program written in Matlab and chisquere test. The results obtained by the form of coefficients of linear function are a0 = 0.309 and a1 = 1.937 with ralat (Sμ = 0.010). The amount of coefficient of static friction (μs) of wood on wood using Matlab is μs = (0.402 ± 0.010). This result is in accordance with the theory that μs = 0.40. The chisqure test (χ2) shows that there is a linear correlation between fs and m, with an opportunity value P () = 50.56%, so the data in this experiment is acceptable. ]]>
<![CDATA[KAJIAN AGRONOMI KORO PEDANG (Carnavalia ensiformis L.) PADA JARAK TANAM DAN KOMPOSISI PUPUK CAMPURAN NPK DI LAHAN PASIR ]]>
<![CDATA[Darnawi Darnawi]]>
<![CDATA[ Science Tech: Jurnal Ilmu Pengetahuan dan Teknologi Vol 2 No 2 (2016): Agustus ]]>
Publisher : <![CDATA[Universitas Sarjanawiyata Tamansiswa ]]>
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DOI: 10.30738/jst.v2i2.371
<![CDATA[The study was conducted determines the effect of plant spacing and the provision of NPK fertilizer composition mixture on the growth and yield of koro sword (Carnavalia ensiformis L.) dilahan pasir.Percobaan conducted in farmer's land in Depok, Parangtritis from July to December 2013. This research was arranged as factorial with complete randomized block design (RAKL) is repeated three times. The first factor is a spacing (A) which consists of three levels, namely: a distance of 40 cm x 80 cm (J1), a distance of 50 cm x 80 cm (J2), a distance of 60 cm x 80 cm (J3). The second factor is the composition of NPK fertilizer mixture that consists of four levels, namely: the ratio of 1: 1: 1 (25:25:25) (P1), a ratio of 1: 2: 2 (25:50:50) (P2), the ratio of 2 : 2: 2 (50:50:50) (P3), a ratio of 2: 3: 3 (50:75:75) (P4). The variables measured were plant height was six months old, weighs fresh stover age of six months, the weight of dry stover age of six months, dry seed weight per plant, grain weight dry weight of 100 seeds and dry beans per hectare. The analysis showed no effect of the interaction between plant spacing and composition of NPK fertilizer mixture, as well as the treatment plant spacing and composition of themix NPK fertilizer did not significantly affect all the variables observed.]]>
<![CDATA[PENGEMBANGAN BUKU DIGITAL MELALUI APLIKASI SIGIL PADA MATA KULIAH COOKIES DAN CANDYS ]]>
<![CDATA[Anggri Sekar Sari]]>
<![CDATA[ Science Tech: Jurnal Ilmu Pengetahuan dan Teknologi Vol 3 No 1 (2017): Februari ]]>
Publisher : <![CDATA[Universitas Sarjanawiyata Tamansiswa ]]>
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DOI: 10.30738/jst.v3i1.1226
<![CDATA[The development of digital book through SIGIL application in cookies and candys lessons was motivated by the lack of the interactive learning media for students. The purposes of this study were: (1) to develop digital book through Sigil Application concerning to the understanding and processing candys subject; (2) to know the feasibility of digital book based on the expert’s assessment and student’s view. This study used research and development (R&D) which was modified through ADDIE development model.The phases of study were: 1) Analysis (needs identification & book prototype formulation), 2) Design ( digital book designing), 3)Development (digital book validation by experts, reading test and media opinion by students, analysis, and revision), 4) Implementation (digital book application for learning), and 5) Evaluation (digital book evaluation). This study was conducted up to third phase - development phases.The results of the study were: 1) the development of digital book through Sigil Application concerning to the understanding and processing candys, 2) the result from the experts assessment of digital book feasibility is in average percentage 95,23% . As a learning media in cookies and candys lessons, it was estimated “extremely feasibleâ€.However, the result of students assessment in media opinion was regarded positive as it had 91,43% in average percentage which assumed that the digital books were able to be used as cookies and candys learning media.]]>
<![CDATA[DE-ALGEBRAS, E-LOGIC DAN E-SET THEORY ]]>
<![CDATA[Denik Agustito]]>
<![CDATA[ Science Tech: Jurnal Ilmu Pengetahuan dan Teknologi Vol 1 No 1 (2015): Februari ]]>
Publisher : <![CDATA[Universitas Sarjanawiyata Tamansiswa ]]>
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DOI: 10.30738/jst.v1i1.475
<![CDATA[Dalam logika biasa, disjungsi yang digunakan dalam beberapa pernyataan matematika menggunakan disjungsi inklusif dan ini mendapatkan sebuah struktur aljabar baru yang terdiri dari himpunan semua pernyataan bersama dengan konjungsi, disjungsi inklusif, negasi, tautologi dan kontradiksi yang akan dinamakan dengan aljabar boolean. Didalam logika biasa juga ada sebuah gagasan disjungsi yang lain yaitu disjungsi eksklusif. Paper ini akan menjelaskan tentang struktur aljabar baru yang dikonstruksi jika disjungsi inklusifnya diganti dengan disjungsi eksklusif dan apa akibatnya bagi logika dan teori himpunan jika dibangun berdasarkan struktur aljabar yang baru tadi]]>
<![CDATA[FREKUENSI ALAMI RANGKA BATANG SEMI-KAKU DENGAN EFEK GAYA AKSIAL ]]>
<![CDATA[Ruly Irawan]]>
<![CDATA[ Science Tech: Jurnal Ilmu Pengetahuan dan Teknologi Vol 2 No 1 (2016): Februari ]]>
Publisher : <![CDATA[Universitas Sarjanawiyata Tamansiswa ]]>
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DOI: 10.30738/jst.v2i1.417
<![CDATA[This article presents the natural frequency analysis of beam framework and axial force effect. The analysis considers the modification of mass matrix, rigidity, and geometric matrix of semi-rigid beam framework. The rigidity matrix, mass, and semi-rigid geometric connecting rod were derived from polynomial Hermite modification. This paper shows an example of natural frequency of beam framework with axial force effect or not. The results of analysis were used to show the efficiency of the calculation of beam frame work model with semi-rigid connection, which results in a more realistic solution than rigid connection model. This paper also shows that the change of axial force can result in the change of natural frequency of beam framework. Besides, this method can be used to examine any building because it can calculate the effect of structural rigidity]]>
