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Techno (Jurnal Fakultas Teknik, Universitas Muhammadiyah Purwokerto)
Published by Universitas Muhammadiyah Purwokerto
ISSN : 14108607     EISSN : 25799096     DOI : -
Core Subject : Engineering,
Engineering
Arjuna Subject : -
Articles 72 Documents
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PEMBANGKIT LISTRIK MANDIRI YANG RAMAH LINGKUNGAN Watiningsih, Tri
Techno Jurnal Ilmu Teknik Vol 16, No 1 (2015): Jurnal Techno Volume 16 No.1 April 2015
Publisher : UMP

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Abstract

Energi listrik di Indonesia  semakin berkurang karena penduduk Indonesia semakin bertambah dengan bertambahnya penduduk maka pengguna energy listrik semakin meningkat dan pembangunan pembangkit listrik sudah diupayakan namun untuk daerah-daerah terpencil masih belum bisa terjangkau oleh aliran listrik dari PLN. Sehingga untuk daerah terpencil belum dapat menikmati energy listrik berusaha dengan memanfaatkan aliran sungai terdekat dengan membuat kincir air, tenaga Mikrohidro, tenaga angin, maupun tenaga surya yang sekarang sedang dikembangkan dengan berkembangnya teknologi banyak penemuan-penemuan baru tentang energy listrik alternative yang dapat dikembangkan. Masalah penyedian tenaga listrik menjadi kendala bagi pemerintah dikarenakan membutuhkan biaya yang tidak sedikit, dengan adanya tenaga alternative dapat membantu pemerintah untuk mengatasi permasalahan yang ada. Sejalan dengan dimaksud maka perlu peningkatan partisipasi masyarakat untuk pemenuhan kebutuhan listrik didaerah terpencil melalui pengembangan teknologi tenaga alternative sebagai Pembangkit Listrik Mandiri yang Ramah lingkungan denan pemanfaatan  kolam ikan yang ada dilingkungan kita dengan membuat pembangkit listrik tenaga kolam/aquarium.Kata Kunci : Sungai, Kincir. Accu , Generator,  Energi listrik.
MEMBANGUN WEBSITE PROFILE DESA KEDUNGMALANG Sugiyanto, Sigit
Techno Jurnal Ilmu Teknik Vol 16, No 1 (2015): Jurnal Techno Volume 16 No.1 April 2015
Publisher : UMP

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Abstract

Seiring perkembangan teknologi yang semakin cepat dengan ditandai adanya pemanfaatan dalam penggunaan internet yang semakin meluas diseluruh dunia. Internet dapat memberikan dan menyampaikan informasi dalam berbagai aspek bidang pendidikan, hiburan dan bisnis dll. Desa Kedungmalang adalah salah satu desa yang terdapat pada Kecamatan Sumbang. Desa Kedungmalang adalah desa yang merupakan desa berkembang sehingga belum banyak masyarakat mengenal dengan baik. Dengan adanya teknologi informasi, mendorong penulis untuk merancang website Profile Desa Kedungmalang supaya masyarakat luas dapat lebih mengenalnya melalui webnya. Dengan dibangunnya website Profile Desa Kedungmalang Kecamatan Sumbang diharapakan dapat memeberikan informasi letak peta desa, struktur organisasinya, jumlah penduduk, dan memberikan informasi potensi desa. Dengan adanya website Profile Desa Kedungmalang  masyarakat luas dapat lebih mengetahui potensi desa, sehingga pihak luar dapat menginvestasikan di Desa Kedungmalang. Kata kunci: Internet, Informasi, Website,  Profile Desa.
ANALISIS KEBUTUHAN LUAS PARKIR KAMPUS I UNIVERSITAS MUHAMMADIYAH PURWOKERTO BERDASARKAN JUMLAH MAHASISWA Anjarwati, Sulfah
Techno Jurnal Ilmu Teknik Vol 13, No 1 (2012): Jurnal Techno April 2012
Publisher : UMP

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Abstract

An increasing number of students affects accretion need for plots at the University of Muhammadiyah Purwokerto parking. This can be seen in the presence of a complex problem, one of which is the problem of vehicle parking space requirements are needed by students and employees who have a vehicle, either car or motorcycle. For that to know how the actual needs of the existing parking area, how the circulation patterns and parking should be applied to each parking area. Parking space requirements based on the obtained data on the number of students per faculty, the data is analyzed based on the Technical Guidelines for Operation of Parking Facilities issued by the Department of Transportation, the Director of Transportation land. After that made parking and circulation patterns tailored to the plots at the university campus I Muhammadiyah Purwokerto. Needs unit for motorcycle parking spaces is 761 SRP, and the need for car parking spaces is 25 SRP. Motorcycle parking pattern created the position of the vehicle is 900 because of the effectiveness of space. Patterns form a pattern of cars parked at an angle of 450 parking. because of the ease and comfort of the driver to maneuver in and out of parking space. Keywords: Needs Parking Space, Parking Space Unit
REKONFIGURASI JARINGAN DISTRIBUSI 20 KV UNTUK PERBAIKAN PROFIL TEGANGAN DAN SUSUT DAYA LISTRIK Prasetijo, Hari
Techno Jurnal Ilmu Teknik Vol 11, No 2 (2010): Jurnal Techno Oktober 2010
Publisher : UMP

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Abstract

 This study was conducted to evaluate the voltage profile and decrease the electric power, main feeder 20 kV distribution system of Kalibakal Substation (GI Kalibakal). Evaluation refers to the standard PT. PLN (Persero) SPLN 72: 1987 about the specification and design to JTM and JTR and SPLN 10-1A: 1996 percentage losses tolerance is ± 10% of the power delivered. Evaluation results used as the basis for improved simulation voltage drop and  power losses with a network reconfiguration method. Potential re-configuration is determined by looking at the voltage profile and power losses in each configuration feeder and around feeder nearest feeder that will be reconfiguration. Simulation is done using the tools ETAP power station to analyze the power flow the main feeder of GI Kalibakal.The first simulation assuming GI Kalibakal voltage of 20 kV as the voltage rating of medium voltage distribution system. The result is that the voltage profile, 92.66%  in feeder 5 and 94.62% in feeder 6  under standard. With the GI Kalibakal boost to the 20.5 kV, voltage profile feeder 5 rose to 95.29% and feeder be 97.21% 6. So by increasing the voltage GI Kalibakal from 20 kV to 20.5 kV voltage profile already meet the standards.From the simulation with the GI Kalibakal voltage 20.5 kV, losses that occur in all feeder under 10% which means meet with the standard, the largest losses in feeder 5 for 2.81%. Losses had to be suppressed as small as possible in this case performed by a network reconfiguration that can be done without investment. Reconfiguration is done by involving feeder 2, 3, 5 and 6 with total losses before the reconfiguration is 401 kW. After a reconfiguration of the steps:1. Three sections with a value of voltage on the marginal area (section 5_8, section5_9     and 5_10) feeder delegated to section 6 through 6_8, 2. Section 6_11 and 6_12 section feeder transferred to section 3 through 3_6, 3. Section 5_8, 5_9 and 5_10 its section 6_8, 6_9 and 6_10 delegated to feeder section 2    through 2_6, total losses feeder 2,3,5 and 6 to 290 kW, so there is a decrease losses of 401-290 = 111 kW. Key word : Reconfiguration, voltage profile, losses. 
PENGEMBANGAN MEDIA PEMBELAJARAN DIGITAL INTERAKTIF KALKULUS-II DALAM PENINGKATAN PRESTASI BELAJAR MAHASISWA Mustafidah, Hindayati
Techno Jurnal Ilmu Teknik Vol 11, No 2 (2010): Jurnal Techno Oktober 2010
Publisher : UMP

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Abstract

This research is based of students low learning achievement of students in calculus II courses coupled with a lack of students learning activities. Accordingly, in this study developed a system of interactive CD containing the course material of Integral in Calculus II subject, to assist students in learning the course material. The method used is developing with the following specifications: the model used in this development is the creation of interactive multimedia learning CD that contains material of Integral, practice items and their solutions, the manual of this media. Design validation is performed by experts (lecturer of this course) and validation of users (students) as a field test. Technique data collecting by observation, interviews, and tests. Research instruments include instructional media that consists of instructional materials, computer hardware and software that supported. Evaluation tools are used are test and observation sheets. Technique of data analysis using descriptive statistical analysis of quantitative in the form of average. This research result is a system of interactive multimedia CD that contains material that covers Integral Calculus and Its Application. The effectiveness of this system has been tested by the increasing activities of students learning and increase student achievement of an integral material that is reflected by scores that tend to increase.Keywords: interactive learning media, Integral, student achievement
PENGARUH ANOMALI KARAKTERISTIKA HUJAN TERHADAP EROSI LAHAN (Studi Kasus DAS Merawu, Jawa Tengah) Marhendi, Teguh
Techno Jurnal Ilmu Teknik Vol 12, No 1 (2011): Jurnal Techno April 2011
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Global climate change is an important issue that is still a lot of attention in the last decade. Indonesia can not be separated from the problem of global climate change. Climate change has caused some irregularities, such as increased air temperature, evaporation and rainfall. One of the impacts of global climate change is the emergence of anomalies characteristics rain, including the Merawu Watershed which is one Mrica Reservoir catchment area is eroding the land is quite high and changeable. Changes in erosion is influenced by many factors such as increasing factors of land use, land as well as factors characteristics rain. Global climate change which affects the onset of the rainy characteristics anomaly, believed to give effect to changes in the rate of erosion in the Merawu watershed. Throughout 1989 to 2009 the highest annual rates of erosion occurred in 2001 amounting to 16.41 mm / year and the lowest occurred in 1996 amounting to 5.00 mm / year.This paper is intended to assess the influence of rain characteristics  anomaly, namely the intensity and duration of rainfall, as well as its influence on soil erosion occurring in the Merawu Watershed. The review begins with the preparation of anomalous nature of abnormality criteria daily or monthly rainfall. The next study is related to patterns of erosion associated with the phenomenon of rain, followed by the rate of erosion predictions with respect to the existence of the rainfall anomalies. Analyses were performed on the anomalous nature of characteristics rain using 2002 data, considering 2002 was a year of El Nino with the criteria being, with comparative data in 1992, 1996, 1998 and 2005.The results of the analysis for 2002 data, overall rainfall anomaly characteristics show negative anomalies except in March, April, September, November and December. In January, February, May, July, August and October have characteristics rainfall anomalies are very dry until it reaches -320 mm /month. In this condition has decreased soil erosion. Positive rainfall anomalies characteristics occurred in March, April, September, October and November with the highest anomalies of 216 mm/ month. This condition causes the erosion of the month have increased. Keyword: Merawu watershed, Anomaly characteristics rain, soil erosion
IMPLEMENTASI ONLINE ANALYTICAL PROCESSING (OLAP) PADA STUDI KASUS SISTEM INFORMASI MANAJEMEN PERIJINAN MENGGUNAKAN ALAT BANTU MICROSOFT BUSINESS INTELLIGENCE DEVELOPMENT STUDIO Hakim, Dimara Kusuma
Techno Jurnal Ilmu Teknik Vol 12, No 1 (2011): Jurnal Techno April 2011
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Abstract

Business licensing data in a district that has been collected in a database, it would be very useful when analyzed, so a lot of important information is obtained. The need of data reporting types is endless in accordance with the   needs of organization. It makes organization depends on application developer to make report, therefore, they need a system that can analyze data easily. Online Analytical Processing (OLAP) is an implementation of Datawarehousing that can help reporting and analysis well. OLAP can map the data with cube dimensions, each cube can be easily compared, so decision maker can easily and quickly to find the suspected cause of the problems that faced. Kata Kunci:OLAP, Data Warehouse, Permit Application, Microsoft Business Intelligence Development Studio 
IMPLEMENTASI HTB (HIERARCHICAL TOKEN BUCKET) UNTUK MANAJEMEN BANDWIDTH PADA ROUTER INTERNET DI UNIVERSITAS JENDERAL SOEDIRMAN Asmoro, Dwi Ary; Susilawati, Hesti; Nugraha, Azis Wisnu Widhi
Techno Jurnal Ilmu Teknik Vol 12, No 2 (2011): Jurnal Techno Oktober 2011
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HTB (Hierarchical Token Bucket) bandwidth management implementation on Jenderal Soedirman University is an improvement from PCQ (Per Connection Queue) bandwidth management. PCQ divide traffic automatically based on active users, its weakness is in dividing a large amount of active users. The HTB impelentation refers to Mikrotik RouterOS queue tree, consists of class and parent that is filled by outgoing-interface. Each parent is adjusted based on IP adress block on each node, and determine packet-mark through IP-firewall-mangle. From the implementation result, 2 Global-total or main parent can be obtained, Unsoed down and Unsoed up. 29 Global-in or parent child down and 29 Global-out or parent child up which each parent max-limit is determined by 17,5 Mbps. The users satisfaction based independent sample t-test give the mean value of HTB browsing is 2,823 and PCQ browsing is 2,79. The mean value of HTB downloading is 2,616 and PCQ downloading is 2,636. Those values show that theres no significant differences in Unsoed internet users satisfaction.Keywords : Implementation of bandwidth, Mikrotik RouterOS, queue, parent. 
MODIFIKASI TEPUNG UBIKAYU SECARA BIOLOGI MENGGUNAKAN STARTER BAKTERI ASAM LAKTAT Mulyadi, Abdul Haris
Techno Jurnal Ilmu Teknik Vol 14, No 2 (2013): Jurnal Techno Oktober 2013
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Ketersediaan bahan baku ubikayu yang sangat besar dapat dimanfaatkan sebagai bahan substitusi ataupun pengganti gandum, maka dibutuhkan teknologi terobosan untuk dapat memodifikasi ubikayu sehingga mempunyai sifat-sifat yang setara dengan gandum. Salah satu metode untuk memodifikasi tepung ubikayu yaitu dengan cara biologi melalui proses fermentasi. Penelitian ini bertujuan untuk mengkaji pengaruh starter bakteri asam laktat terhadap sifat fisikokimia dan rheologi tepung ubikayu termodifikasi yang meliputi swelling power dan kelarutan. Tepung ubikayu direndam dengan starter bakteri asam laktat direndam dengan starter bakteri asam laktat  selama 36 jam (konsentrasi starter 5 % v, 10 %v, 15 %v, 20 %v dan 25 %v). Setelah tepung ubikayu termodifikasi dikeringkan kemudian dianalisa sifat fisikokimia. Hasil optimal yang diperoleh menunjukkan konsentrasi optimal  sebesar 10%.Kata kunci : tepung ubikayu, starter bakteri asam laktat, swelling power, kelarutan
PERANCANGAN SAKLAR PEMINDAH OTOMATIS PADA INSTALASI GENSET DENGAN PARAMETER TRANSISI BERUPA ARUS BERBASIS MIKROKONTROLER ATMEGA16 Sutisna, Utis; Karyono, Karyono; Nurhadiyono, Siswanto
Techno Jurnal Ilmu Teknik Vol 16, No 2 (2015): Jurnal Techno Volume 16 No 2 Oktober 2015
Publisher : UMP

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Abstract

Sebagai cadangan di saat suplai energi listrik dari PLN terputus, di tempat-tempat tertentu seperti  pusat  perdagangan,  perhotelan, rumah sakit maupun industri, biasanya digunakan genset. Sebagai kontrol kapan genset mengambil alih suplai tenaga listrik ataupun sebaliknya  maka diperlukan sebuah sistem kontrol saklar pemindah otomatis. Dalam penelitian ini dibuat simulasi secara software dan secara hardwaremenggunakan mikrokontroler ATmega16 sebagai kontroler utama dari suatu saklar pemindah otomatis pada instalasi genset. Arus dari sumber ke beban dideteksi oleh sensor arus ACS712. Sinyal keluaran sensor tersebut digunakan oleh mikrokontroler sebagai acuan untuk mengetahui apakah listrik PLN menyala atau padam. Jika listrik PLN menyala, maka relay PLN diaktifkan dan relay genset dimatikan. Sebaliknya, jika listrik PLN padam, maka relay PLN dimatikan dan relay genset diaktifkan.Dari hasil pengujian diketahui bahwa sistem saklar pemindah otomatis dalam simulasi ini mempunyai waktu perpindahan dari PLN ke genset selama 6,00 detik pada simulasi software dan selama 6,53 detik pada simulasi hardware. Sedangkan perpindahan dari genset ke PLN yaitu selama 1,03 detik pada simulasi software dan selama 1,25 detik pada simulasi hardware.Kata kunci : Saklar pemindah otomatis, mikrokontroler ATMega16, sensor ACS712.

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