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SCIENCE TECH: Jurnal Ilmiah Ilmu Pengetahuan dan Teknologi

sciencetech
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Published by Universitas Sarjanawiyata Tamansiswa

ISSN : 24606286 EISSN : 25793624 DOI : 10.30738/science tech.v2i1.396

Core Subject : Science, Agriculture, Engineering,

Agriculture, Biological Sciences & Forestry Chemistry Computer Science & IT Engineering Materials Science & Nanotechnology

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.

Arjuna Subject : Umum - Umum

Articles 9 Documents

Search results for , issue "Vol 2 No 2 (2016): Agustus" : 9 Documents clear

STUDI EFEK MEMORI HIDROKSIDA GANDA TERLAPIS Zn-Al-NO3 Tias Ernawati; Roto Roto
Science Tech: Jurnal Ilmu Pengetahuan dan Teknologi Vol 2 No 2 (2016): Agustus
Publisher : Universitas Sarjanawiyata Tamansiswa

Synthesis and memory effectâ€™s study of Zn-Al Layered Double Hydroxides (LDH) containing nitrite anion had been performed. Zn-Al-NO3 LDH were synthesized by coprecipitating and hydrothermal methods with molar ratio of Zn:Al of 3:1. The conversion of Zn-Al-NO3 LDH to corresponding mixed metal oxide were carried out by heating Zn-Al-NO3 LDH at 400Âº C for 2 hours. The reconstruction of Zn-Al-NO3 LDH were carried out by reacting the mixed metal oxide with solution of sodium nitrate 0,01 mol.Zn0.702Al0.298(OH)2(NO3)0.298.1.882H2O were synthesized. Its mixed metal oxide were made. The results of XRD and FTIR analyses showed that Zn-Al-NO3 LDH could be reconstructed after calcination. This work may enable to recycle and reuse of LDHs after the structure damaged.

VISUALISASI TETESAN AIR MENGGUNAKAN LATTICE BOLTZMANN Arifiyanto Hadinegoro
Science Tech: Jurnal Ilmu Pengetahuan dan Teknologi Vol 2 No 2 (2016): Agustus
Publisher : Universitas Sarjanawiyata Tamansiswa

Â Water is the important element in of live, every day met with the water, Water is a chemical element that is easily deformed, many factors influence began from nature of the water itself until gravity ,the laws of physics is also present in water droplets phenomenon One such the law of force. the unique nature the water is fairly difficult for computer engineering. However With the development of computer technology now can make a visualization that is similar to the events nature. like this techniques has been apply in making movies and also games, some are used for visual effects that could not be created a real. In this study, authors try to visualize the water droplets with a fluid with one method LatticeBoltzmann fairly simple and powerful in accuracy. Visualization is made a water droplet falling on a cross-section due to gravity at work.

PERAN PROGRAM PEMBERDAYAAN MUSYAWARAH GURU MATA PELAJARAN ILMU PENGETAHUAN ALAM (MGMP IPA) DALAM Asep Agus Sulaeman
Science Tech: Jurnal Ilmu Pengetahuan dan Teknologi Vol 2 No 2 (2016): Agustus
Publisher : Universitas Sarjanawiyata Tamansiswa

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.

KAJIAN AGRONOMI KORO PEDANG (Carnavalia ensiformis L.) PADA JARAK TANAM DAN KOMPOSISI PUPUK CAMPURAN NPK DI LAHAN PASIR Darnawi Darnawi
Science Tech: Jurnal Ilmu Pengetahuan dan Teknologi Vol 2 No 2 (2016): Agustus
Publisher : Universitas Sarjanawiyata Tamansiswa

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.

GEOMETRI ANALITIK BIDANG PADA KOORDINAT MIRING Zainnur Wijayanto; Kusmanto kusmanto
Science Tech: Jurnal Ilmu Pengetahuan dan Teknologi Vol 2 No 2 (2016): Agustus
Publisher : Universitas Sarjanawiyata Tamansiswa

The aim of this study was to determine (1) the shape and properties of any of the lines in the coordinate oblique, (2) the shape and properties of any of the circles on the coordinate oblique, (3) the shape and properties of any of parabola in oblique coordinates, (4) the shape and properties of any of the ellipse in oblique coordinates, (5) the shape and properties of any of the hyperbole in oblique coordinates.The method to be used is a literature review to collaborate with existing theories.The results showed that the equation of the line through p1=(x1-y1)Â and Â p2=(x2-y2)Â at oblique coordinate Â a becomes = y-y1 =mr(x-x1) with mr=tan (180-a) B mr=(y2-y1)/(x2-x1)

PERANCANGAN SISTEM PENDUKUNG KEPUTUSAN UNTUK PEMILIHAN PEMASOK NATA DE COCO DI PT. XZY Dian Eko Hari Purnomo
Science Tech: Jurnal Ilmu Pengetahuan dan Teknologi Vol 2 No 2 (2016): Agustus
Publisher : Universitas Sarjanawiyata Tamansiswa

PT. XYZ is a manufacturing company that produces nata de coco pieces. Consumers of the product nata de coco pieces of food businesses such as food PT.Garuda Sidoarjo, PT. Holy Sinar Mas, PT. Borobudur Semarang and others. PT. XYZ has two types of contract supplier and the supplier is not a contract. Currently, the company in the selection of suppliers do not contract into supplier contracts sometimes have trouble. Terebut difficulties occurred because of the detailed criteria that can be used for the selection of suppliers. So in this study will berusahaan find criteria that influence supplier selection. The data in this study using the method Technique for Order Preference by Similarity to Ideal Solution (TOPSIS). In addition, models that have been made will be implemented into a Decision Support System (DSS). The criteria that can mempengeruhi supplier selection is the sum total, the number of total quality one, a total of two quality, the total number of nata broken, the number of deliveries the maximum, the maximum number of quality one, the maximum number of two qualities, the maximum amount is broken, the number of deliveries at a minimum, the number of minimum quality one, the minimum number two quality, the minimum amount is broken, regularity, quality price and the price of the quality of the two. In addition, based on test results Decision Support System (DSS), which has made the conclusion that the system that has been created can be used later by PT. XYZ.

PENERAPAN TEOREMA BINOMIAL UNTUK MENENTUKAN PELUANG KEJADIAN (KASUS :PERCOBAAN PELEMPARAN KOIN TAK SEIMBANG) Istiqomah Istiqomah
Science Tech: Jurnal Ilmu Pengetahuan dan Teknologi Vol 2 No 2 (2016): Agustus
Publisher : Universitas Sarjanawiyata Tamansiswa

Study on trial coins and dice unbalanced still rare. This resulted in the students find it difficult when faced with the problem experiment coin toss and dice made in such a way that it becomes unbalanced. Actual trial coin toss and dice are balanced or unbalanced have the same pattern. For example in terms of determining the number of sample points, where the pattern is formulated as apn where p is the number of comparisons. Calculating the sample points and calculate the probability of the occurrence of an experiment throwing a coin or dice are balanced relatively easier than calculate the sample points and calculate the probability of occurrence of throwing a coin or dice experiment that is not balanced. Binomial Theorem extremely helpful in calculating pass up the opportunity of an event. However, due to the experimental throwing a coin or dice are balanced relatively easy then very rarely do calculations chance occurrence by using the Binomial Theorem.

PENENTUAN KOEFISIEN GESEKAN KINETIK KAYU PADA KAYU DENGAN METODE GRAFIS Puji Hariati Winingsih
Science Tech: Jurnal Ilmu Pengetahuan dan Teknologi Vol 2 No 2 (2016): Agustus
Publisher : Universitas Sarjanawiyata Tamansiswa

The aim of the reasearch is in order to determine the coefficient of kinetic friction in the wood by using graphical method through the experiment of friction force. To determine the coeeficient of wood kinetic friction by using variety of masses (12 x 10-1, 15 x 10-1, 22 x 10-1, 25 x 10-1, 27 x 10 1, 32 x 10-1, 36 x 10-1, 42 x 10-1, 46 x 10-1, 52 x 10-1) kg. The analysis of data used weighted linear regression with REGLIN which was written in Matlab language and run by the the Windows XP operation system. The outputs of regresion was obtained in the form of linear function coefficients are a0=0.0156 dan a1= 1.972, included the error (SÎ¼= 0.06). The results was revealed the coefficient of wood kinetic friction of the wood by using graphical method was Î¼k= (0.20 Â± 0.06). It was based on the theory that Î¼k= 0.20. The chisqure test showed that there were relationships between fk and m, with the value of probability P ( 2 Ã· 2 â‰¥ Ã· hit ) = 50.16 %, so that the data was accepted.

INSPIRASI FISIKA MISTERI SEBAGAI PROBLEM SOLVING PEMBELAJARAN SAINS DALAM MENYONGSONG MEA Handoyo Saputro
Science Tech: Jurnal Ilmu Pengetahuan dan Teknologi Vol 2 No 2 (2016): Agustus
Publisher : Universitas Sarjanawiyata Tamansiswa

The quality of education was the main condition to realize advanced, modern, and prosperous nationâ€™s life which was determined by the quality of human resources. The quality of human resources itself was determined by the quality education at the basic, intermediate or advanced level. The education plays a key role in the effort to educate the nation lifes. The physics of mystery was an inspiration and new inovation of problem solving on the physics science learning to respond the challanges in welcoming MEA. To produce inovation learning, all of the learning components that include teachers, students, teaching materials, the achievments of competency, and learning evaluation need to be innovated. The point was the innovative physics science learning was learning that could equip accompaniment effects learning that include higher level thinking and generic phiysics science skills. A wide variety of advanced technology was the result, such as the technology of tranportation which made the humans could travel from one place to another easily and quickly. The technology would not be possible to develop andcreate without the fundamental of knowladge that supports it. The fundamental of knowladge was none other than science, particularly physics. In this paper, it would be shown about the new inspiration of innovative of physics learning as the problem solving of physics concept. It was the physics of mystery. The secret behind this inspiration could be one of solution to overcome the student difficulties in undertanding of physics concepts easily and quickly and also to respond the challanges of global competition (MEA).

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Contact Name
Trio Ardhian

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Phone
0247-387841

Journal Mail Official
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Editorial Address
Jalan Batikan No. 2, Tempel Wirogunan, Daerah Istimewa Yogyakarta

Location
Kota yogyakarta,

Daerah istimewa yogyakarta

INDONESIA