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PENERAPAN MATERIAL PVDF DENGAN POLARISASI PERMUKAAN SEBAGAI SENSOR GAYA Nugraha, Aditya; Ardin, Masri Bin
PROSIDING SEMINAR NASIONAL & INTERNASIONAL 2018: SEMINAR NASIONAL PENDIDIKAN SAINS DAN TEKNOLOGI
Publisher : Universitas Muhammadiyah Semarang

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Abstract

PVDF is one of the materials that has piezoelectric properties that are often used  as sensors  or  actuators.  This  piezoelectric property  can be  activated through a stretching process, and then polarized by giving a DC voltage of 4KV. In this study, PVDF material was polarized by the surface polarization method, which were the results tested using d33 meters. The test results show that the value of d33 is 31,32C/N. After being tested using d33 meters, the PVDF material that has been polarized on the surface was tested as a force sensor whose output voltage was measured using an oscilloscope. The result of test carried out by increasing and decreasing load testing and then sensitivity measurements test. The result of increasing and decreasing load test obtained the biggest deviation is 0.35. The results of the calculation of the sensitivity of the PVDF sensor with a surface polarization is 0.0615V / N. Keywords: Surface polarization, Force sensor, PVDF sensor
KEPEKAAN ESCHERICIA COLI PATOGEN YANG DIISOLASI DARI BABI PENDERITA KOLIBASILOSIS TERHADAP ANTIBIOTIK DI KECAMATAN KERAMBITAN DAN TEBANAN KABUPATEN TABANAN, BALI Nugraha, Aditya; Besung, NK.; Mahatmi, Hapsari
Veterinary Science and Medicine Journal Vol 1 No 2 (2013)
Publisher : Udayana University

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Abstract

This study aims to determine the sensitivity pattern of E. coli isolated from pigs with colibacillosis to antibiotics. The total of 21 fecal samples was collected from pigs with white scour at the District of Kerambitan and Tabanan, the Regency of Tabanan, Bali. The isolation and identification of pathogenic E coli used Sheep Blood Agar medium, and serotype grouping of those bacteria was designated through agglutination test using serum?s antibody Polyvalent 1-5 and 6-11. The pathogenic E. coli found was then examined it`s own resistance to streptomycin, sulfamethoxazole, gentamicin, cefotaxime, and chloramphenicol according to Kirby Bouer method. The result showed that the isolates of E. coli polyvalent 1-5 were resistant to streptomycin and chloramphenicol, whereas that of polyvalent 6-11 was resistant to sulfamethoxazole, gentamicin, streptomycin and chloramphenicol.
EMERGENCY SMS SERVICES FOR DISABLED PATIENTS Nugraha, Aditya
Jurnal Ilmiah Teknologi dan Rekayasa Vol 21, No 1 (2016)
Publisher : Universitas Gunadarma

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Abstract

Many learning method to educate children with special needs, such as learning to use the application through iPad, or use other special tools. In the learning phase that usually they are accompanied by a parent/baby sitter. The parents or babysitters not always 24 hours at their side. Could be because parents who go to work, or when the babysitter left the children while sleeping. When left as it is, if the children need help suddenly it will be difficult to recall the parent/babysitter page. To overcome this,there is an idea to make a communication tools using short message service media and using Arduino platform. The tool is specifically designed for patients/children with special needs so it is easy to operate and can quickly contact their parents.Theresults of the design tool is a tool is capable of sending SMS with a delay 5 seconds from the button is pressed and have outreach as far as 14,5 meters from GSM modem. Keywords: GSM modem, Message alert, Arduino, RF remote control, frequency
PERANCANGAN PERANGKAT ELEKTRONIK MEDIA PEMBELAJARAN IQRA DALAM KODE BRAILLE Hidayat, Hidayat; Nugraha, Aditya
Jurnal Sistem Komputer Vol 5, No 2 (2015)
Publisher : Jurnal Sistem Komputer

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jsk.v5i2.90

Abstract

Iqra Learning is the first step in studying al-Qur?an, because al-Qur?an is a way of life for Muslims, no exception blind people. Limitations of learning device of al-Qur?an for the blind becomes an obstacle for the blind to learn Qur'an. This research describes the design of electronic learning device of Iqra Braille for blind people. This system consists of a computer that serves as an interface to manage Iqra braille to be read by the blind people, the mikrokontroler ATMega328P-PU which serves as a data processor of a computing device that can be translated in the braille code, and Braille Display devices which serves to show Braille codes from the data Iqra. Communication between computer and mikrokontroler used Bluetooth media. The results show that the system that has been made to run well. Braille Iqra data which entered by teachers can be displayed on a Braille Display.
Sekilas Mengenal Indoesian Capital Market Nugraha, Aditya; Grand Tronton, Auditor
Akuntansi Krida Wacana vol. 8 no. 1 Januari 2008
Publisher : Akuntansi Krida Wacana

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Abstract

Studi Kuat Tekan Tanah Pasir Berlempung yang Distabilisasi Menggunakan Abu Gunung Merapi Setyanto, Setyanto; Putra, Andius Dasa; Nugraha, Aditya
Jurnal Rekayasa Vol 17, No 2 (2013): Edisi Agustus 2013
Publisher : UNIVERSITAS LAMPUNG

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Abstract

The tested soil sample in this research is sandy clay soil. The variations of procentage are 5%,10%, 15%, and 20%. Each of samples are cured in 14 days. Based on the physical soil propertiesinvestigation, AASHTO classified the soil sample into A-2-6 group (sandy clay soil), while USCSclassified the soil sample as soil with rough granules into SC group.The results of the research in the laboratory showed that the additive material using Merapi vol -canic ash could improve the physical and mechanical properties of organic clay soil. In the physi-cal test such as unit weight and Atterberg limit tests, the values decreased after it, while the me-chanical test of Merapi ash sample showed it could improve the value of unconfined compressionstrength soil. Based on the result of unconfined compression stregth test, soil which is stabilizedusing the ash of Mount Merapi increase until the optimum ash content about 20%.
APLIKASI BENTUK MANGKOK SEBAGAI ELEMEN INTERIOR DENGAN MENGGUNAKAN TEKNIK MARBLING Nugraha, Aditya; Nansha, Hendhy
Craft Vol 2, No 1 (2013)
Publisher : Craft

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Abstract

Makan merupakan kebutuhan primer seseorang, namun dari situlah seringkali kualitas hidup seseorang di takar. Piring, mangkok, gelas, sendok,garpu, dan jenis tableware lainnya seringkali ditata secara konseptual dengan berbagai aturan tertentu di atas meja. Tata jamuan ini dicitrakan menjadisebuah karya seni. Hal ini pada masa sekarang, menunjukan bahwa tableware bukan hanya berfungsi sebagai tableware saja, namun memilikipergeseran yang cukup signifikan dalam dunia desain, yaitu menjadi instalasi seni. Pergeseran tableware menjadi instalasi seni menjadikan sebuahpajangan yang lebih dekat dengan kehidupan sehari-hari. Fenomena ini menjadi hal yang menarik sehingga tercetuslah sebuah gagasan untukmembuat tableware sebagai wallhanging. Jenis tableware yang dipilih adalah mangkok. Mangkok ditata sedemikian rupa dengan alur tertentu padasebuah panel kayu agar menciptakan kesan dinamis. Aplikasi wall hanging pada ruang interior diharapkan dapat menambah nilai estetis suatu ruangdan juga memperkuat konsep ruang yang dirancang tersebut.
DETEKSI BAKTERI SALMONELLA SPP DAN PENGUJIAN KUALITAS TELUR AYAM BURAS NUGRAHA, ADITYA; SWACITA, IDA BAGUS NGURAH; TONO P.G, KETUT
Indonesia Medicus Veterinus Vol 1 (3) 2012
Publisher : Faculty of Veterinary Medicine, Udayana University

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Abstract

The purpose of this research is to know the contaminan of bacterium of Salmonella spp. and the quality of local chicken eggs wich sold at Kuta I, Kuta II, Jimbaran, and Kedonganan traditional market. Sample of this research were taken from 120 local chicken eggs from four randomized traditional market. After ward each and every sample were inoculated at Tetrathionate Broth media, then streaked at Salmonella Shigella Agar (SSA) media. If a colony on SSA media appeared to be convex, transparant, with or without black spot at central shares, after that will be continued with Gram stain and biochemistry test covering cultivation at media of TSIA, IMViC. The result, from 120 sample of local chicken eggs which is sold in Kuta I, Kuta II, Jimbaran, and Kedonganan traditional market indicated that were no containing Salmonella spp. and the quality of local chicken eggs wich sold at Kuta I, Kuta II, Jimbaran, and Kedonganan traditional market significantly different (P <0.05) evaluated from the albumin Index , but not significantly different (P> 0.05) when viewed from the York index.
STUDI EKSPERIMENTAL PENGGERAK MULA TERMOAKUSTIK PISTON AIR DENGAN DIAMETER SELANG OSILASI 1 INCI Nugraha, Aditya; Kurniawan, Agus; Prabandono, Bayu
Prosiding Seminar Nasional Sains Dan Teknologi Fakultas Teknik Vol 1, No 1 (2015): PROSIDING SEMINAR NASIONAL SAINS DAN TEKNOLOGI 6 2015
Publisher : Prosiding Seminar Nasional Sains Dan Teknologi Fakultas Teknik

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Abstract

Penggerak mula termoakustik adalah salah satu renewable energy yang mengubah energy panas menjadi energi gas dan suara sehingga dapat menggerakkan air. Fenomena ini sangat menarik untuk diteliti. Penelitian ini akan menyajikan sebuah model penggerak mula termoakustik sehingga menghasilkan daya dan efisiensi energi yang cukup tinggi. Model ini terdiri dari  bagian pendingin, regenerator dari steelwool dengan panjang 60mm, tabung resonator dan bagian osilasi berupa selang transparan dengan diameter 1 inci. Energi mekaniknya berupa gerak osilasi fluida zat cair dalam hal ini air yang berada di dalam selang yang sudah dibuat sedemikian rupa sehingga membentuk profil U. Penelitian ini dilakukan menggunakan tabung resonator yang ukuran tabung outside 15,7 x 70 mm, outside 20 x 90 mm, dan outside 25,2 x 100 mm. Model dengan ukuran tabung resonator outside 25,2 x 100 mm menghasilkan daya terbesar sebesar 0,226 watt dan efisiensi energi terbesar sebesar 0,279 %. Semakin besar dimensi tabung resonator, daya dan efisiensi yang dihasilkan akan semakin besar. Kata kunci: renewable energy, penggerak mula termoakustik, tabung resonator
FENOMENA MEME DI MEDIA SOSIAL (STUDI ETNOGRAFI VIRTUAL POSTING MEME PADA PENGGUNA MEDIA SOSIAL INSTAGRAM) Nugraha, Aditya
Jurnal Sosioteknologi Vol 14, No 3 (2015)
Publisher : Kelompok Keahlian Ilmu Kemanusiaan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (467.256 KB) | DOI: 10.5614/sostek.itbj.2015.14.3.3

Abstract

Media sosial belakangan ini menjadi fenomena media baru yang digemari oleh masyarakat Indonesia khususnya kaum remaja hingga dewasa. Karakteristik media sosial yang bersifat maya seringkali menghasilkan fenomena-fenomena yang booming dikalangan pengguna media sosial itu sendiri bahkan khalayak luas. Dalam penelitian ini, peneliti tertarik untuk meneliti fenomena meme di media sosial Instagram. Jenis penelitian ini merupakan penelitian kualitatif dengan studi etnografi virtual. Adapun informan dalam penelitian ini adalah pengguna Instagram yang melakukan aktivitas posting meme menggunakan foto selfie dirinya. Hasil penelitian menunjukkan bahwa ada lima motif yang melatarbelakangi pengguna Instagram dalam melakukan aktivitas posting meme, yakni motif ingin tahu, motif menghibur, motif cinta, motif ekspresi dan motif harga diri. Selain itu, dalam memaknai aktivitas posting meme yang dilakukan oleh pengguna Instagram, peneliti menemukan tiga poin utama, yaitu merasa diperhatikan followers, merasa memberikan informasi ke followers serta mendapatkan pengalaman baru. Sehingga dapat dikatakan bahwa fenomena meme merupakan salah satu fenomena dimana pengguna menyampaikan pesan dalam bentuk baru dengan menggabungkan bahasa verbal dengan komunikasi nonverbal (ekspresi).Kata kunci: etnografi virtual, makna, meme, motif, posting meme