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INDONESIA
TEKNIK
Published by Universitas Diponegoro
ISSN : 08521697     EISSN : 24609919     DOI : -
Core Subject : Engineering,
Engineering
Journal yang mempublikasikan artikel-artikel ilmiah dari berbagai disiplin ilmu rekayasa/keteknikan. Artikel-artikel yang dipublikasikan di Jurnal TEKNIK meliputi hasil-hasil penelitian ilmiah asli (prioritas utama), artikel ulasan ilmiah yang bersifat baru (tidak prioritas), atau komentar atau kritik terhadap tulisan ilmiah yang dipublikasikan oleh Jurnal TEKNIK.
Arjuna Subject : -
Articles 522 Documents
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Analisis Penggunaaan Government Radio Network (GRN) untuk Integrasi Sistem Komunikasi Public Protection and Disaster Relief (PPDR) di Kota Bandung Riza, Tengku Ahmad; Mulyana, Asep; Munadi, Rendy Ahmad
TEKNIK Vol 40, No. 2 (2019): Agustus 2019
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (483.912 KB) | DOI: 10.14710/teknik.v39i3.24661

Abstract

Sistem komunikasi Public Protection and Disaster Relief (PPDR) yang digunakan oleh instansi/lembaga saat ini tidak terintegrasi. Situasi ini menghambat komunikasi informasi antar instansi/lembaga sehingga memperlambat penanganan bencana. Artikel ini menyajikan penelitian kajian analisis penggunaan sistem Government Radio Network (GRN) untuk integrasi sistem komunikasi antar instansi/lembaga PPDR. Integrasi ini bertujuan untuk memperlancar aliran informasi antar instansi/lembaga PPDR sehingga mempercepat upaya menangani bencana. Teknologi komunikasi GRN yang digunakan ditentukan dengan melakukan kajian literatur dan studi banding di kota lain di dalam dan di luar negeri. TETRA digunakan untuk simulasi implementasi sistem GRN dalam melayani seluruh kota Bandung dengan frekuensi operasi 400 MHz dan lebar pita 800KHz.
PEMBUATAN PUPUK KALIUM-FOSFAT DARI ABU KULIT KAPOK DAN TEPUNG FOSFAT SECARA GRANULASI Purbasari, Aprilina; Setia Budi, Faleh
TEKNIK Volume 29, Nomor 2, Tahun 2008
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (178.064 KB) | DOI: 10.14710/teknik.v29i2.1929

Abstract

Kapok-husk ash containing + 28% potassium can be used as raw material of potassium-phosphatefertilizer. In this research, kapok-husk ash is mixed with phosphate powder by granulation process toproduce potassium-phosphate fertilizer. Operation variables are granulation time (4, 7, 10 minutes),kapok-husk content (3, 5, 7, 9 %-w/w), and adhesive liquid type (phosphoric acid solution andaquadest). The result shows that the increasing granulation time is proportional to fertilizer yield;the increasing kapok-husk ash content is proportional to potassium content, but inverselyproportional to phosphate content in fertilizer; and phosphoric acid solution is better than aquadestas adhesive liquid referred to fertilizer yield.
PENYUSUNAN SKENARIO KEBIJAKAN UNTUK PENGEMBANGAN BRT TRANS SEMARANG DENGAN PENDEKATAN SISTEM DINAMIK Susanty, Aries; Nugroho, Susatyo; Khantari, Kumala Ade
TEKNIK Vol 35, No 1 (2014): (July 2014)
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (471.395 KB) | DOI: 10.14710/teknik.v35i1.6357

Abstract

[Preparation for Policy Scenarios for Developing the Bus Rapid Transit (BRT) Trans Semarang with Dynamic System Approach] Related to the complexity of the problem faced by Bus Rapid Transit (BRT) Trans Semarang, this research attempts to develop a framework for dynamic development of BRT Trans Semarang and provide a platform to support policy making related to performance improvement of BRT Trans Semarang. This research use system dynamics (SD) methodology. There are three scenarios constructed in this research and then a system dynamics model built based on them for the next five years. The first scenario is providing some feeder that will take the passenger on the bus, the second scenario is providing some new bus, and the third scenario is a combination of providing a number of feeders and also some new bus. There are three criteria which are used to evaluate the result of each scenario, i. e the achievement of the target of load factor (greater than 70%), the amount of total subsidy for operational of BRT, and percentage of the number of people that change their moda of transportation, from using private vehicles to BRT. The result of simulation with system dynamic indicated that scenario 1 is better than the existing condition; scenario 1 also better than scenario 2 or scenario 3. By providing some feeder, operational BRT can achieve the target of load factor at month 15, the government also does not need to issue subsidies for operational of BRT Trans Semarang, as well as the percentage of the number of people who moved from using private vehicles reached 26%.
EVALUASI SISTEM PENGELOLAAN LIMBAH PADAT B3 PT. INDOFARMA, TBK BEKASI Syafrudin, Syafrudin
TEKNIK Volume 29, Nomor 3, Tahun 2008
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (971.257 KB) | DOI: 10.14710/teknik.v29i3.1970

Abstract

Besides yielding product, production process also will yield discard product that we called as waste. Thetype of the waste are depended on the raw materials and other process that happened during theproduction process. As a pharmacy industry, PT. Indofarma Tbk also generate waste from their productionprocess which have potency to contaminate the environment because the most material that use for theproduction are chemicals that need to be handled seriously. The waste can be categorize as HazardousWaste and needed furthermore management to control, so it will be secure for the environment. Forpharmacy industry, the hazardous waste is in the form of the chemicals, Waste Water Treatment’s sludge,residu production process like dust from dust collector, incinerator’s fly ash, and other materials which iscame from hazardous materials.
STUDI KOMPARATIF ANGKUTAN BARANG MENGGUNAKAN MODA LAUT DAN DARAT DI PULAU JAWA Ridwan, Mohd
TEKNIK Volume 32, Nomor 3, Tahun 2011
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1035.247 KB) | DOI: 10.14710/teknik.v32i3.1739

Abstract

A comparative study of the use of marine and land modes of transportation of goods, aiming to get the value ofgoods transport which is more economical, especially in Java. The output from this study can be used asstepping and the consideration for the government in planning the transport infrastructure of goods and assistemployers to make decisions in order to utilize the mode of transport of goods/ containers that will be marketed.There are many modes of transport that can be utilized in the transportation of goods, namely land modes:Railway containers, trucks/ trailer containers, marine modes: container ship, barge and container ship, RoRocontainer and trailer / truck, so it is necessary for technical and economic studies to assess the transport ofgoods by means of which one is more economical.The results of this study, is the most economical freight rate is the mode of sea transportation of container bargethat only Rp. 13,028,845.93 / TEU (Rp. 651,4/kg).
APLIKASI PENGINDERAAN JAUH UNTUK PERENCANAAN TATA RUANG WILAYAH PESISIR DAN PULAU- PULAU KECIL Pigawati, Bitta
TEKNIK Volume 33, Nomor 1, Tahun 2012
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (214.187 KB) | DOI: 10.14710/teknik.v33i1.3785

Abstract

Our beloved country, Indonesia has planty natural resources both in the sea and it the land. It can be seen to thefact that Indonesia is and archipelago country which has thousands islands. Most of our area is surrounded bythe sea that provides foot resources, mining resources, mineral, energy, and tourism place. In short It can besaid that coastal area is not only as living resources for people surrounding but also supporting our nationalsocial and economic development. In order to use the resources optimally and efficienly it need not only a goodplan but also an integrated management.A plan has become a part of everyone’s life. It has been used since people realized they need it to solve aproblem. People often get confused between planning and actuating their daily activities, so it needs acomprehensive understanding about what plan means. Plan is a process, process of thinking and actuating it dosomething). Planning acts as an intervening variable between knowledge and action. The essence of planning ispreventative rather than remedial.Spatial planning is a process of area planning system. Master plan of small islands is one of the detail masterplan. Coastal area is a border area between land and sea. The coastal area management is a process to plan, touse, to supervise, and to control the coastal area as well as coastal resources. Master plan is set into some formsbased on its scale or its area to coverage, its detail level, and its focus and attention. Spatial plan is well knownas master plan RTRWN, RTRWP, TRTW Kota/ Kabupaten to design the three master plans takes three phases,they are data compilation, analysis and planning; further more, the three phases are always completed withsome maps to give illustration and comprehensive understanding about phenomena spatially. The integratedcoastal resources management and planning need information about what potention can be developed as well aswhat problems come up.Remote sensing is an observation method or spatial elements measurement of earth’s surface. This effective andefficient method really supports any activities which use spatial approach. Remote sensing data really suit forcoastal area management and planning research due to the large area to investigate and to reach. The use ofremote sensing data for spatial plan has a function for not only completing the existing data but also providingthe newest information. Considering and area developed rapidly it needs available data to monitor and toevaluate the implementation of a master plan. Some problems emerged as a result of using remote sensing dataare such as; limited budged and limited human resources who are able to use remote sensing.
Aplikasi Penginderaan Jauh dan EPA-SWMM untuk Simulasi Debit Banjir Akibat Perubahan Lahan Sub DAS Banjaran Ariwibowo, Mohammad Lutfi; Suripin, S; Atmojo, Pranoto Samto
TEKNIK Vol 38, No 2 (2017): (Desember 2017)
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (573.303 KB) | DOI: 10.14710/teknik.v38i2.13804

Abstract

Tataguna  lahan  di  Sub  Daerah  Aliran  Sungai  (DAS)  Banjaran  telah mengalami perubahan yang cukup tinggi selama  kurun  waktu  1995  sampai  2001. Lahan sawah berkurang 1.759,28 hektar menjadi 1.603,97 hektar, tegalan berkurang  289,54 hektar menjadi 283,32 hektar dan permukiman bertambah 1.284,36  hektar menjadi 1.445,88 hektar. Alih fungsi lahan ini mengakibatkan banjir sering terjadi. Beberapa kali Sungai Banjaran meluap menyebabkan banjir di permukiman dan ruas jalan. Kajian pengaruh perubahan lahan terhadap debit banjir perlu dilakukan sehingga peningkatan debit banjir dapat dikendalikan.Tujuan penelitian ini menganalisis debit banjir secara periodik sesuai dengan perubahan tata guna lahan yang terjadi berdasarkan data hidrologi dan parameter DAS. Perhitungan debit banjir dilakukan dengan kalibrasi Environmental Protection Agency – Storm Water Management Model( EPA-SWMM), yaitu metode Hidrograf Observasi (debit terukur) yang  dikalibrasi dengan metode Nash. Analisis perubahan lahan menggunakan peta tataguna lahan tahun 2005, Citra Satelit Quick Bird tahun 2010 dan 2014 yang berbasis Geography Information System (GIS). Penggunaan citra satelit resolusi tinggi Quick Bird  memenuhi ketepatan dalam menentukan daerah impervious dan pervious sertamorfometri DAS sebagai parameter utama dalam input EPA-SWMM. Model yang telah terkalibrasi digunakan untuk simulasi debit rencana  sampai periode ulang  50  tahun.Perubahan  lahan  selama tahun  2005-2014  permukiman meningkat sebesar 10,98 ha (2,39 %), luas hutan menurun 1,67 ha (0,07%), telah mengakibatkan kenaikan debit banjir Q2  sampai Q50  tahun. Besarnya debit dan kenaikannya berturut-turut sebagai berikut : Q2  tahun sebesar 3,08 m3/dtk (2,16 %), Q5 tahun sebesar 3,5 m3/dtk (1,87 %), Q10 tahun sebesar 3,72 m3/dtk (1,7 %), Q25 tahun sebesar 3,94 m3/dtk (1,60 %) dan Q50 tahun sebesar 4,13 m3/dtk (1,50 %).  Volume banjir terjadi peningkatan yakni: Q2 tahun sebesar 0,57 % (10. 106 ) liter, Q5 tahun sebesar 0,45 % (12.106 ) liter, Q10 tahun sebesar 0,42 % (13. 106) liter, Q25 tahun sebesar 0,33 % (12.106) liter dan Q50 tahun sebesar 0,35 % (14.106) liter. Usaha pengendalian banjir pada periode ulang 50 tahun (Q50) yang disimulasikan mampu menurunkan debit banjir antara lain : penegakkan hukum  sebesar 14,43 m3/dtk (5 %), embung sebesar 20,9 m3/dtk  (7,1 %) dan sumur resapan sebesar 31,18 m3/dtk (10,73 %). Skenario RTRW sebesar 26,3 m3/dtk (9,05 %), kombinasi sumur resapan dan penegakan hukum sebesar 45,92 m3/dtk (15,81 %) dan kombinasi embung dan penegakan hukum sebesar 40,58 m3/dtk (13,97 %). Dari hasil simulasi diperoleh pembuatan sumur resapan, kombinasi sumur resapan dan penegakan hukum, kombinasi embung dan penegakan hukum mampu menurunkan debit banjir sampai pada Q25
ANALISIS KEBUTUHAN PERANGKAT LUNAK MENGGUNAKAN ANALISIS FAKTOR PADA PROGRAM STUDI ILMU KEPERAWATAN UNDIP Handoyo, Eko; Setiawan AR, Adnan
TEKNIK Volume 30, Nomor 1, Tahun 2009
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (185.636 KB) | DOI: 10.14710/teknik.v30i1.1817

Abstract

The need to obtain the speed and information accuracy provided in an organization conducting dataprocessing in gross, complex and finite during make the organization require the information system tosupport their business.Systems analysis represent the early stage in determining quality of system development in informationsystem to be developed. Analysis of Requirement of sistem, one of the phase of systems analysis, haveplaying important role to formulate what must be owned and done by an information system.This report using quistioner of the measuring instrument by using modification of Likert scale for onehundred responder to get the data. Processing data is conducting bytest of validity and reability, thenfactor analysis is done for formulation of system requirement.
PENGENALAN STABILISASI TANAH DENGAN JET GROUTING Dwi Atmanto, Indrastono
TEKNIK Volume 34, Nomor 2, Tahun 2013
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (263.233 KB) | DOI: 10.14710/teknik.v34i2.5628

Abstract

Due to restriction of land availability it is frequently we have to build constructions on soft or low bearingcapacity soils, so that soil stabilization must be applied in order to increase its properties. There are manytechniques of soil stabilization, where its applicability depends on many factors regarding appropriateengineering judgement. This paper presents the soil stabilization method by jet grouting, including its theory andpractice.
Peningkatan Kecepatan Proses dan Mutu Minyak Bekatul melalui Proses Ekstraksi Berbantukan Ultrasonik Djaeni, Mohamad; Listyadevi, Yuniar Luthfia
TEKNIK Vol 40, No. 1 (2019): Mei 2019
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (697.703 KB) | DOI: 10.14710/teknik.v39i3.22826

Abstract

Rice bran oil is one of the oils that has been widely used in the chemical, pharmaceutical and food industries considering the high essential content such as antioxidants, vitamins that are good for the body. Extraction of ultrasonic assisted bran oil is one of many method used to reduce extraction time. The purpose of this study was to examine the effect of extraction methods on mass transfer of bran oil, antioxidant quality, and the quality of bran oil during the extraction process at the temperature, extraction time, and the right solvent ratio. Mass transfer of bran oil was evaluated based on the effect of various temperatures, extraction times, and solvent ratios to predict the right tim e to get a lot of bran oil. Chemical quality (antioxidant content of α-tocopherol) and physical quality (oil color) of bran oil were studied so that they were able to predict temperature, extraction time, and relatively good solvent ratio. The results showed that yield increased with increasing temperature and extraction time. However the antioxidant value of α-tocopherol will decrease with increasing temperature, extraction time and solvent. The recommended operating conditions for obtaining yields and antioxidant values at 40ºC, material to solvent ratio 1: 5 and extraction time for 51 minutes.

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