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TEKNIK

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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.

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Articles 13 Documents

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Search results for , issue "Volume 29, Nomor 1, Tahun 2008" : 13 Documents clear

STUDI PEMANFAATAN ENERGI GELOMBANG LAUT UNTUK PEMBANGKIT LISTRIK Suyadi, Suyadi
TEKNIK Volume 29, Nomor 1, Tahun 2008
Publisher : Diponegoro University

In the case of the exploration on renewal energy sources and non fossil energy sources, the writer hasmade a concept of development method in using sea wave for electrical plant as an effort to develop theelectrical plant system by using renewal energy sources. This system uses pontoon to press the sea waterinto tanks, then the generated pressure is used to move turbine. Cylinder pontoon may be floated byproducing maximum heave at the type weight = 0,65. At this type weight surge and pitching movement cannot be reduced until zero, however it may reduces the other movements like rolling and translating, namelyby: DL < 0,615H and DL < 0,175Î», the buoyancy value is 75,4% from its diameter sink in the water or thevolume buoyancy of the floated part that is 15% from the total volume of cylinder. The energy that may beboosted depends on the pontoon's weight which can be pulled by one way of wave, amplitude, and naturalperiod of the wave. The research gives method of electrical energy and estimation and boosting boosted byone way of wave. The result of energy estimation which can be boosted for wave length is 1,20 m and waveheight is 0,50 meter, the energy that can be boosted is 0,02Kw, for wave length 4,00 meter and wave height2,00 meter, the energy that can be boosted is 23,06Kw for wave length 4,00 meter and wave height 8,00meter the energy that can be boosted is 737,89Kw.

PROSPEK INDUSTRI GALANGAN KAPAL DALAM NEGERI GUNA MENGHADAPI PERSAINGAN GLOBAL Windyandari, Aulia
TEKNIK Volume 29, Nomor 1, Tahun 2008
Publisher : Diponegoro University

The development planning of maritime industry at the national level, the objectives, the vision, the mission,the strategy and the government policy that empower maritime industry potential is very important beimplemented effectively by all component of maritime industry, especially shipyard community inIndonesia. The main and strategic problems have to be solved immediately with the systematic plan. Thisarticle will be focused to the condition, contribution, challenge and prospect of shipbuilding industry tosupport maritime exploration program for the total development of maritime industry that able to competethe foreign shipbuilding industry.

PEMANFAATAN KREDIT MIKRO PERUMAHAN BAGI MASYARAKAT BERPENGHASILAN RENDAH DI BMT MITRA KHASANAH KOTA SEMARANG Esariti, Landung; Nirwanto, Anang
TEKNIK Volume 29, Nomor 1, Tahun 2008
Publisher : Diponegoro University

Since 2006, government has started to launch the housing micro finance system for low incomehousehold, and has been implemented in Jakarta, Semarang, Solo and other big cities. In Semarang, thehousing micro finance is used for early home construction and home renovation. This research is todefine the contribution between two implementation of housing micro finance and BMT Mitra Khasanahis selected as a case study. This investigation used the triangulation method, and is supported with theusing of dicriminant technique analysis, scoring and frequency distribution. About 17 respondent areinterviewed, and they have been facilitated by BMT Mitra Khasanah.The research reveals that 83% of housing micro finance application in Genuk is for home renovation,while 17% is for early home construction. There are 3 dominant factors influenced the applicatio;,namely the economy, installment ability and home condition. The results shows that the applicationwould be very useful if there have been an initation to facilitate the low income household in technicaland managerial assistance.

KELEMBAGAAN IMPLEMENTASI PROGRAM KREDIT MIKRO PERUMAHAN DI KOTA SEMARANG Prananing Tyas, Wido; Ruswanti, Endah
TEKNIK Volume 29, Nomor 1, Tahun 2008
Publisher : Diponegoro University

Housing microfinance is the latest program launched by Kemenpera since 2006. The program is aimed tohelp the low-income household by giving subsidy for new home construction and renovation. During itsimplementation, microfinance institution as an implementer has some internal problems, such as humanresource, management, financial, trustment, accountability and limited links. Because of the problems, thisstudy is important to explore the institutional framework of the housing microfinance implementation inSemarang. The aim of the present study is to identify the institutional framework of the housingmicrofinance implementation in Semarang, not only by the government as a facilitator but also by themicrofinance institutions as an implementer and the inhabitants of this capital as a user. In this research,there are three focus discussions, including institution as an implementer of the housing microfinanceprogram, variables of the microfinance institutional framework, and the last, comparison study of thehousing microfinance implementation by the microfinance institutions in Semarang and comparisonbetween implementation in Semarang and the other developing countries. The study is utilizing qualitativeresearch method by describing the implementation of housing microfinance and exploring its institutionalframework to give some detail descriptions of the housing microfinance implementation in Semarang

PENGUKURAN DAN PEMETAAN KADASTRAL DENGAN METODE IDENTIFIKASI PETA FOTO Sudarsono, Bambang; Laila Nugraha, Arief
TEKNIK Volume 29, Nomor 1, Tahun 2008
Publisher : Diponegoro University

To justify the law enforcement in the landâ€™s ownership right, Government of Indonesia (GOI) hasestablished land registration program in all Indonesian territory that refers to the regulation. This landregistration program consists from several action which is, surveying, mapping, and land documentation.Land surveying should be refers to the cadastral technical rule and jurisdiction rule. Land surveying withphoto map identification could be applied by using photo map as base map registration. To verify the landboundaries in the field we must get an agreement from the landâ€™s owner, neighbours, local governmentofficer and surveyor. Land surveying that use identification method should be refers to the technicalspecification order from Badan Pertanahan Nasional (BPN). There are several limitations from theidentification method; we canâ€™t carry out this method in the crowd residence area and area which coveredby trees.

PENGGUNAAN ABU SEKAM PADI SEBAGAI ADSORBEN DALAM PENGOLAHAN AIR LIMBAH YANG MENGANDUNG LOGAM Cu Hadiwidodo, Mochtar
TEKNIK Volume 29, Nomor 1, Tahun 2008
Publisher : Diponegoro University

The industrial development have been increased together with the increasement of the society need. Theindustrial development will produce another product in the shape of dump that will be throw away to theenvironment. One of the industrial dump was the industrial dump from the copper industry that containshard metal copper (Cu). One of the way to manufacture dump is with the adsorption process of the riceplant dust husk. This research has the aim to know the adsorption ability of the rice plant dust husk indecreasing the concentration of Cu metal in the artificial water dump and it was done with batch processand continuous. The batch experiment use 10, 20, 30 gram adsorben for each media size variation 10-30mesh and 30-50 mesh. Has the highest decreasing efficiency in the weight of 30 gram (30-50 mesh) that is52,81%-87,80%. In the continuous experiment, it was done in the column with 2 inch diameter and with222 ml/menit debit. The result was the highest decreasing efficiency until 94,98%-97,10%. Speed constanvalues (k1) 0,00743-0,0160 ml/mg.second with adsorp capacity(q0) 0,7734-1,3376 mg/g.

ANALISIS KUALITAS PENGAMATAN DATA PASUT BERDASARKAN PERBANDINGAN KOMPONEN PASUT DAN SIMPANGAN BAKU Prasetyo, Yudo
TEKNIK Volume 29, Nomor 1, Tahun 2008
Publisher : Diponegoro University

Tide harmonic constanta is 2 kind of constant parameters (amplitude and phase) with periodic phase fromthe truly tide in equilibrium tide. The quality of tide data processing can be look in the standard deviationvalue of tide harmonic constanta. The standard deviation value decreasing is indicate that tide dataprocessing have a good data quality processing, contrary the standard deviation value increasing isindicate that tide data processing have a bad data quality processing. Depend on range of data observationtime (1 month,3 month, 6 month and 1 year), it will compute in 7 tide harmonic constanta to compare tidedata processing quality. It will compare using amplitude and phase standard deviation which is show thetide data processing quality. This analysis have function to prove that the range of data observation timehave a significant influence in a tide data processing.

THE PERFORMANCE OF REVERSE OSMOSIS MEMBRANE IN WATER TREATMENT Budiyono, Budiyono; Buchori, Luqman
TEKNIK Volume 29, Nomor 1, Tahun 2008
Publisher : Diponegoro University

Membrane technology has led to a new focus on water and wastewater treatment. This is due to severaldrawback of the conventional water treatment i.e release the toxic and carcinogenic materials. In thisresearch, the use Reverse Osmosis (RO) membrane for treating river and well water to obtain clean anddrinking water was studied. The variables studied were effect of pressure and operation time to themembrane flux. The pressure was varied from 1 to 7 bar and the operation time was varied from 15 to 60minutes. The content of Total Dissolved Solid (TDS) in the permeate product was analyzed. The resultsshown that the increase of pressure would increase the membrane flux and decrease TDS. The increaseof the operation time would decrease membrane flux and TDS. The reverse osmosis membrane wassuccessfully applied to treat the river and well water. The product fulfill national standard quality ofdrinking water by viewpoint of the TDS content

KAJIAN STABILITAS TUMPUKAN BATU DALAM AIR Samto Atmojo, Pranoto
TEKNIK Volume 29, Nomor 1, Tahun 2008
Publisher : Diponegoro University

Rock fill Dam, Coffer Dam, Groyne, Railway are example of structures composed by stone material. Rockfill structures are commonly stable enough, but when thatâ€™s constructed in under water, than stability ofstructure will decrease significant. Stability of stone structure under water actually depend on by somevariable these are depth of flooding, size or dimension, and stone position. The Author here will show withRail way stabilities calculation for example. Trial by two level position of flooding ,assume diameter stoneand gated value of properties , the result is stone with diameter 12 cm, will scour by less than 20 cm underwater. The Stone will scours by the flowing water if the velocity of water (Va) bigger than Critical velocityof the stone (Ucr). At the reality, rail way structured by stone with variation size more or less from 5 to 12cm, and depth of flooding possible occur more than 20 cm. So, rail way potential hanging cause of stonesupporting scour by flooding however only 10 cm depth. Calculation of stone stabilities used after Isbash,Goncharov,Levi dan Maynord formulae.

INSTRUMEN ATURAN-ATURAN BANGUNAN DALAM PENGENDALIAN PEMBANGUNAN DI KOTA SURAKARTA Husna, Dinilla; Buchori, Imam
TEKNIK Volume 29, Nomor 1, Tahun 2008
Publisher : Diponegoro University

Building permit (Ijin Mendirikan Bangunan/IMB) is one of the development control mechanism inIndonesia that allows people to develop their land. The idea in using this permit to control developmentmay come from a reasonable thought, i.e. managing building as the core of urban development will be ableto create a proper urban planning. Therefore, as one of control system, building permit has to followregulations that have been determined by the authority.Concerning the issue above, Surakartaâ€™s municipality has determined a bundle of regulation functioned asguidance for permit decision into a municipal regulation (Peraturan Daerah/ Perda) as well as conventionregulation. That regulation control Building Coverage Ratio (Koefisien Dasar Bangunan/KDB), FloorAverage Ratio (Koefisien Lantai Bangunan/KLB), Set Back Building (Garis Sempadan Bangunan), andBuilding Height. Unfortunately, the implementation of that regulation is frequently questioned because theprocedure and the phenomenon of building permit which has been issued by the local government was noteffectively implemented. Hence, this study aims to answer the question on to what extent the buildingregulation has been used in controlong urban land development in Surakarta.This study uses comparative and qualitative descriptive analyses. The first analysis aims to observewhether that regulation have been considered in issuing a building permit. The second analysis is used toidentify how the factors above influence the implementation of that regulation. The triangulation techniquethat combines desk study, interview with the apparatus, questioners for IMB owners, and direct observationwas used to collect the data.The result of study shows that building permit was not issued based on the available regulation andmoreover not considered as a preventive action to control land development. The deviation between thedetermined ragulation and the building permit issued was affected by some factors, e.g. bureaucracysystem that does not use them as a control function to integrate permit decisions, low commitment of localgovernment staffs in controlling land development, and political intervention from its higher level of localgovernment authority. To overcome these problems, a brief regulation and a punishment mechanism arecertainly needed. Besides, improvement of apparatus quality, optimization of coordination and watchingsystem in building permit process are supposed to be able to support urban land development.

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