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TEKNIK
Published by Universitas Diponegoro
ISSN : 08521697     EISSN : 24609919     DOI : -
Core Subject : 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.
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Articles 321 Documents
PENGUKURAN MOTIVASI KERJA PANITIA PENGADAAN BARANG ATAU JASA PEMERINTAH (STUDI KASUS DINAS PENDIDIKAN PROVINSI JAWA TENGAH) Pujotomo, Darminto; Fanani R, Zainal; Dwi Utomo, Prasetyo
TEKNIK Volume 31, Nomor 2, Tahun 2010
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (171.01 KB) | DOI: 10.14710/teknik.v31i2.1764

Abstract

Improvment Job Motivation need to organization for better job. Aims this reserach is redesign job ofprocurement comitte in Dinas Pendidikan Propinsi Jawa Tengah for improving job motivation. This reserachbased on job characteristic, such various skills, job identification, job significant, otonomy, and feedback. Themethod Job Doiagnostic Survey (JDS) from Hackman and Oldham, used for queaionaire design in comitteprocurerment responden.
PENGARUH KADAR LUMPUR PADA AGREGAT HALUS DALAM MUTU BETON Purwanto, Purwanto; Arni Priastiwi, Yulita
TEKNIK Volume 33, Nomor 2, Tahun 2012
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (989.594 KB) | DOI: 10.14710/teknik.v33i2.4385

Abstract

Clay lumps on the aggregate levels is one of the factors that may cause disruption of the binding process andhardening of concrete. Clay lump can not blend with cement so that blocking a merger between the cement withaggregates which eventually led to the compressive strength of concrete will be reduced in the absence ofbinding to each other. SK SNI S-04-1989-F, the allowable levels of clay lump maximum of 5% to fine aggregate(sand) and maximum of 1% for coarse aggregate (split).In this study to determine the effect of the clay lump on the fine aggregate content on compressive strength ofconcrete on five (5) variations levels of the category of clean clay lump with content of 1% and 2%, medium claylump 4% and dirty sand with levels 7 % and 11%, whereas for the coarse aggregate clay lump content was0.7%.From the results of a study of 90 cylindrical specimens showed that the small amount of clay lump, the higherthe compressive strength of concrete. Concrete compressive strength test results on average with dirty clay lumpcontent was 31.30 MPa, compressive strength for the concrete medium with clay lump levels were at 33.92 MPaand compressive strength for the concrete clean of clay lump 36.68 MPa. Compared to the dirty clay lump anincrease in the levels of average compressive strength for moderate levels of 8,37% and the clean sand of17,19%. Besides affecting in compressive strength, clay lump levels also affect the weight of concrete, andconcrete density. The greater the level of clay lump, weight of concrete and concrete density will be lower.Compared to the dirty clay lump an increase in the levels of average concrete density for moderate levels of 6,54% and the clean sand of 12,59%.
MENGANALISA UNJUK KERJA PENGERINGAN IKAN TERI DENGAN SISTEM SIRKULASI UDARA PAKSA Darmanto, Seno; Setyoko, Bambang
TEKNIK Volume 28, Nomor 2, Tahun 2007
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (164.459 KB) | DOI: 10.14710/teknik.v28i2.2137

Abstract

Experiment is done to know the performance of ?teri/stolephorus? fish drying with forced air flow system. Theperformance of fish drying is based on moisture of fish, fan/fan velocity, operation temperature and time. Theresearch is done at laboratory by using drying machine with forced air flow system. Based on data analysis itshows that the moisture of fish achieves 20% on fan velocity maximum 2,8 m/s and times operation 3 hours
OPTIMIZATION OF PENICILLIUM LAGENA MEDIUM CULTIVICATION ON ANTIFUNGAL PATHOGEN OF PHELLINUS LAMAOENSIS USING SURFACE METHODE Nabilah, Siti; Sunaryanto, Rofiq; Syamsu, Khaswar
TEKNIK Vol 38, No 2 (2017): (Desember 2017)
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (368.107 KB) | DOI: 10.14710/teknik.v38i2.10306

Abstract

Phellinus lamaoensis (Murr.) Hein is fungal pathogen that can cause brown root rot disease in cocoa, tea, rubber, and coffee plants. Endophytic fungi, Penicillium lagena, isolated from bandotan (Ageratum conyzoides Linn.), medicinal plant, is able to inhibit the growth of pathogenic, P. lamaoensis. The effect of carbon source, nitrogen source, and mineral solution was studied. Lactose, yeast extract, and mineral solution were media components which showed significant effect toward production of P. lagena active compound. Composition optimization of these three medium components was done by response surface methodology (RSM). The Optimal response region of the significant factor was predicted by using a second order polynomial model with statistical design, central composite design (CCD). Higest production of P. lagena active compound by quadratic model was predicted to be 69.233%  with medium composition 44.77 g L-1 lactose, 13.02 g L-1 yeast extract, and 15.95 mL L-1 mineral solution. Verification value in laboratory is 58.365%, lower 15.7% than its prediction. Optimization increase P. lagena active compound 9 fold compared to unoptimize media.
PENURUNAN MODEL PERMUKAAN DIJITAL (DSM) MENJADI MODEL ELEVASI DIJITAL (DEM) DARI CITRA SATELIT ALOS PALSAR (STUDI KASUS: NAD BAGIAN TENGGARA, INDONESIA) Julzarika, Atriyon; Sudarsono, Bambang
TEKNIK Volume 30, Nomor 1, Tahun 2009
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2290.427 KB) | DOI: 10.14710/teknik.v30i1.1814

Abstract

Alos satellite is one of the natural resources satellite that could be used in 3D applications. The problemsthat be taken in generate 3D model with satellite imagery are the model always be formed as DigitalSurface Model (DSM), not Digital Terrain Model (DTM), Digitallen HöheModellen (DHM), Digital GeoidModel (DGM) or Digital Elevation Model (DEM). The reference system of 3D model that are produced byAlos satellite image still as surface for z axis, for x axis and y axis has been closed to 2D reference systemin some certain datum and system of map projection. In case, it needs a research for observating theaccuracy and precision of Alos satellite data using a least square adjustment of parameter methods. Theresults of this research will be used as reference for next research to invent a way for changing DSM fromAlos satellite image to be DEM, DTM, DHM, DHM, and DGM digital-automatically. It is a new innovationof differentialing technical of 3D model.A differentialing technical from DSM to be DEM could be done with least square adjustment in parametermethods. It calls DSM2DEM*. This new innovation methods for differentialing DSM2DEM. In that studycases, differentialing technical that are used be divided for two class, that are lowland area and highlandarea. Differentialing in that two class use similar methods, just is differentiated in sum up of researchingpoints that are used. In this research study of cases are in highland area and lowland area. In highlandarea uses minimize 14 researching points and in lowland area uses minimize seven researching points.That differentialing technical are done in Alos images. In other satellite images, photos, videos that studyin highland and lowland area also use this methods for differentialing DSM2DEM. Order level that areused as research points will influence the quality of its data accuracy and precision.
DETAIL ENGINEERING TEMPAT PEMBUANGAN AKHIR (TPA) REGIONAL PEKALONGAN Zaman, Badrus; Syafrudin, Syafrudin; Pratiwi, Diah
TEKNIK Volume 29, Nomor 3, Tahun 2008
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (139.619 KB) | DOI: 10.14710/teknik.v29i3.1962

Abstract

Regional Final Disposal (Regional Landfill) Pekalongan is place a waste serves 3 surrounding areas. The threeareas that served are Pekalongan City, Pekalongan Regency and Batang Regency. These areas are close enoughso that Regional Landfill concept is suitable to be applied in these areas. This Regional landfill is planned to usethe concept of sanitary landfills. Location of land to be used as Pekalongan Regional Landfill is locatedprecisely at the border village of Sengare-Batursari, District Talun in the administrative area of Pekalongan.The results of this study is the design of a sanitary landfill with landfill leachate channeling system, gasventilation equipment and various other supporting facilities, including weighbridge and procurement ofrequired heavy equipment. Approxymately costs required to build the design is Rp. 88.137.990.883,56
RANCANG BANGUN SISTEM INFORMASI MONITORING MENGGUNAKAN METODE AGILE DENGAN DYNAMIC SYSTEM DEVELOPMENT MODEL GUNA MENDUKUNG GENDER MAINSTREAMING STRATEGY (STUDI KASUS: POLITEKNIK CALTEX RIAU) Salsabila, Syevira; Trisnadoli, Anggy; Muslim, Istianah
TEKNIK Vol 40, No. 3 (2019): Desember 2019
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (877.265 KB) | DOI: 10.14710/teknik.v40i3.25704

Abstract

Gender merupakan isu yang harus diperhatikan oleh setiap institusi pendidikan. Kesenjangan gender dalam berbagai masalah terkait pengelolaan institusi akan menimbulkan dampak terhadap ketidakadilan gender. Solusi dari permasalahan tersebut adalah adanya dokumen Rencana Strategi Pengarusutamaan Gender (Renstra PUG) pada setiap institusi pendidikan. Penelitian ini bertujuan untuk membangun sebuah Sistem Informasi Monitoring menggunakan metode Agile dengan model Dynamic System Development Model (DSDM) guna Mendukung Gender Mainstreaming Strategy. Studi kasus pada Politeknik Caltex Riau.  Sistem informasi yang dibangun mampu menampilkan informasi yang update dan akurat. Ini mendukung pimpinan institusi dalam pengambilan keputusan dan penentuan kebijakan terhadap gender. Hasil penelitian telah diuji secara fungsional dan divalidasi oleh expert
ECONOMIC CONTRIBUTION OF REGIONAL FEEDER PORTS TO THE LOCAL ECONOMY IN INDONESIA Syabri, Ibnu; Widyanarko, Pritta Andrani
TEKNIK Vol 38, No 1 (2017): (Juli 2017)
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (240.708 KB) | DOI: 10.14710/teknik.v38i1.15408

Abstract

Indonesia regional feeder ports? main function is to serve marine transport activities between regency/city in a province in limited quantities. The intention of the government to make marine transportation as the backbone of national logistic transportation system puts these ports to an important position, as suppliers for the main and/or collector ports and as goods distribution centers for the region from the bigger ports. Not only as a provider of accessibility between regions, regional feeder ports should be seen as an investation to boost regional economy. This study aims to explain the influences of regional feeder ports on regency/city economy, based on the port types: (1) cargo ports, and (2) cargo & passengers ports. Results showed that both types of ports have positive influences on the regency/city economy, although it is not related to region?s economic base sector. Cargo ports which are mainly located on west area of Indonesia, supports the region?s economy more than cargo & passenger ports which are mainly located on the east.
OPTIMASI PENGUMPULAN DAN PENGANGKUTAN SAMPAH KOTA DENGAN MENGGUNAKAN MODEL POWERSIM Budihardjo, M. Arief; Zaman, Badrus
TEKNIK Volume 28, Nomor 2, Tahun 2007
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (227.228 KB) | DOI: 10.14710/teknik.v28i2.2117

Abstract

Gathering and transportation of garbage represent problems in Town Semarang with 1.431.105 population. Neededan effort of effective garbage management breakthrough in order to improving efficiency and optimalisationgathering and transportation of garbage by using Powersim dynamic model. Powersim is windows base software tocreate the model of dynamic system with a simulator desain. Simulation of gathering and transportation garbagemodel in Town Semarang of early compilation concept. Compilation concept conducted by determining elementwhich playing a part in gathering and transportation process of garbage which interact and have depending.Concept formed to be formulated by as model which is the in form of the breakdown of, picture or formula. Here inafter simulation conducted with the model which have been made by including data to know behavior process of thegarbage gathering and transportation. Data input for the gathering to cover the garbage volume, appliancetransport the garbage and to the transportation of its data input cover the garbage volume in place Dismissal ofWhereas and appliance garbage transport. Result of research shown existing condition of garbage gathering andtransportation in Town Semarang not yet optimal, seen by garbage amount which not yet been transported byduring gathering process. After optimation proven by that any garbage transported at process of gathering andtransportation and also do not rest of garbage which piled up. For repair of gathering and transportationrecommended by gathering process (1) used a garbage pedicab amount to 1300 with 0,82 m2 capacity, 2 timesritation and operate everyday and ( 2) 15 dump truck, with 6 m3 capacity, 1 times rotation and operate everyday. Itstransportation repair used by arm roll truck as much 60 by 6 times ritation and have 6 m 3 capacities operatingeveryday
PENGARUH GETARAN DAN KARAKTERISTIK LALU LINTAS TERHADAP BANGUNAN (STUDI KASUS JALAN RAYA SEMARANG – KENDAL ANTARA KM. 10+000 DAN KM. 10+500) Siswanto, Joko; Wicaksono, Y.I.
TEKNIK Volume 32, Nomor 2, Tahun 2011
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (170.688 KB) | DOI: 10.14710/teknik.v32i2.1727

Abstract

Connections between building damage and vibration intensity has been examined by few researcher. Indeedtackling of effort about bigger damage has been examined too. But connections between traffic character andbig vibration in the street edge isn?t much inspect. Some of literature almost study about connections betweenvibration and traffic micro and too specify, such as to look vibration character and it?s relation with vehiclecharacteristic. Generally details like it is less applicative, Theoretically it?s better do by perform a formula.To aim this study is to examine of connections between vibration in the street edge and traffic characteristic athighway. Traffic characteristic which examined covering are traffic volume and average of traffic speed.To support the aim, survey and analysis is needed. Survey material needs are vibration survey, traffic speed,traffic volume and few road characteristic. Survey did at the street edge with three location where everylocation have few different road characteristic, in this case wide of drainage as of attentuation wide. Everylocations inspected by variable inspection distance are 5 m. 15m and 25 m. Speed and traffic volume datarecorded in every location by using manual record, While vibration data recorded at every point of everylocation by using vibration record Vibecheck meter.Result of recording processed and analyzed to obtain average value and it data distribution. To viewconnections between vibration and traffic characteristic, distance and attentuation, to perform correlation andregretion examine. Regretion examine used for mode calibration connections between vibration and trafficcharacteristic, distance and attentuation based on Watt style.Exams result show that 1) There is strong relation between vibration with distance of examine and attentuationwide, where that connections is negative identifying, 2) There is strong relation between vibration and trafficspeed but not with traffic volume and heave vehicle on the traffic, where that connections is positive identifying,3) Watt style calibration examine result gave good enough result if we look R² value of correlation examineresult which reach 0,96.From analysis result we can concluded some cases, 1) cause vibration is effected by traffic speed then decreaseof vibration effect can performed by limitation speed especially at residence area and 2) cause vibration iseffected by distance and attentuation , then decrease of vibration effect can performed by widest distancebetween building and street edge and widest attentuation in this case is drainage

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