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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 518 Documents

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Analisis Kualitas untuk Optimasi Pemanfaatan Potensi Sumber Daya Mineral Non Logam dan Batuan di Kecamatan Lumbir, Kabupaten Banyumas Ali, Rinal Khaidar; Qadaryati, Nurakhmi; Widadi, Sigit
TEKNIK Vol 40, No. 3 (2019): Desember 2019
Publisher : Diponegoro University

Kecamatan Lumbir, Kabupaten Banyumas mempunyai sumber daya mineral non logam berupa lempung dan sumber daya batuan berupa andesit dan batupasir. Analisis sebaran, jenis, dan kualitas diperlukan untuk optimasi pemanfaatan sumber daya alam tersebut. Analisis laboratorium meliputi analisis XRD (X-Ray Diffractometry), XRF (X-ray Fluoroscence) dan analisis kuat tekan batuan. Analisis XRF menunjukan lempung di daerah Lumbir mempunyai unsur SiO2 yang tinggi (berkisar antara 39 â€“ 54,5 %) sehingga dapat dijadikan bahan campuran dalam pembuatan semen, gerabah kasar, dan batu bata. Sumber daya batuan berupa andesit di Desa Canduk dan Desa Parung Kamal memiliki nilai Kuat Tekan Ultimit (qu) berkisar antara 247,7547 kg/cm2 - 45,4674 kg/cm2, sehingga dapat digunakan sebagai batu hias dan batupasir di Desa Karanggayam dapat dijadikan tanah urug

PERSEPSI INTEGRASI TATA GUNA LAHAN PADA KAWASAN WATERFRONT DEVELOPMENT (Studi Kasus: Kanal Banjir Barat Semarang) Puspitasari, Rizkya Ayu; Setioko, Bambang; Pandelaki, Edward Endrianto
TEKNIK Vol 36, No 1 (2015): (Juli 2015)
Publisher : Diponegoro University

Kawasan waterfront merupakan suatu kawasan dinamis yang memiliki kontak fisik dan visual dengan air laut, sungai, danau, dan badan air lainnya. Kawasan ini memiliki potensi tersendiri untuk dikembangkan melalui suatu waterfront development. Sebagai salah satu kanal besar di Semarang, Kanal Banjir Barat dikembangkan menjadi kawasan waterfront yang diberi nama â€œSemarang New Waterfrontâ€ Kawasan ini direncanakan dengan fungsi recreational and historical waterfront. Untuk fungsi rekreasi sudah cukup terpenuhi, namun sayangnya masih terdapat berbagai kekurangan, salah satunya belum ditunjang oleh fasilitas yang memadai. Kurang beragamnya aktivitas yang tercipta serta tidak adanya karakter yang khas juga mempengaruhi minat pengunjung untuk datang. Sedangkan untuk fungsi sejarah belum mampu tercipta. Beragam masalah tersebut diyakini memberi pengaruh terhadap keberhasilan kawasan ini. Penelitian ini bertujuan untuk mengetahui pengaruh integrasi tata guna lahan terhadap keberhasilan â€œSemarang New Waterfrontâ€ development. Metode kuantitatif rasionalistik digunakan dengan pengumpulan data melalui studi literatur, kuesioner, dan observasi lapangan. Analisis data menggunakan analisis statistik dengan uji regresi menggunakan SPSS 21.0 for windows. Hasil penelitian ini menunjukkan terdapat pengaruh integrasi tata guna lahan terhadap keberhasilan Semarang New Waterfront development sebesar 42,4%.[Perception of Integrated Land Use in The Area Waterfront Development (Case Study: West Flood Canal Semarang)] A dynamic area which has physical and visual contact with sea, river, lake, and other waterâ€™s bodies is called waterfront. This area has a potency to be developed through waterfront development. As one of big canals in Semarang, West Floodway was developed as a waterfront called â€œSemarang New Waterfrontâ€. It was planned with the function of recreational and historical waterfront. This area can fulfill the recreational function, but unfortunately there are still some shortages, such as the amount of amenities. The lack of the diversity of activities and unique character also influence people interest to come. Meanwhile, the historical function also canâ€™t be sensed yet. Those problems are believed give impact to the success of this waterfront. This research aims to know the influence of land use integration to the success of â€œSemarang New Waterfrontâ€ development. A quantitative rationalistic method is used with data collection by literature study, questionnaires, and field observations. While the method of data analysis use statistical analysis by regression test using SPSS 21.0 for windows. This research shows that there is influence of land use integration to the success of "Semarang New Waterfront" development as amount as 42.4%.Â

KAJIAN PEMANFAATAN POTENSI SUMBER DAYA AIR TERPADU ( STUDI KASUS MATA AIR INGAS (COKRO), KEC. COKRO TULUNG KABUPATEN KLATEN â€“ JAWA TENGAH) Sriyana, Sriyana
TEKNIK Volume 32, Nomor 1, Tahun 2011
Publisher : Diponegoro University

Potential exploitation of Ingas (Cokro) water resource is currently less than optimal, there are still manywasted water flows and there is still no coordination in planning. The objective of this research is to reviewwater resource potential integratedly, by measuring the spring discharge in real terms, analyzing the utilizationof water source and water balance. The method used in this thesis is by measuring the discharge using currentmeter, analyzing water requirements for plants using Penman method, and analyzing data with the help ofMicrosoft Exel. It is resulted that the total potential of Ingas (Cokro) water resource is 1297 l/dt, utilized fordrinking water (PDAM Surakarta) at 400 l/dt, drinking water for Cokro Village at 4 l/dt, and the remainder isused for irrigation and moving a turbine with 50 Watt electric power. Water demand for irrigation is 995 l/dt,fullfilled from Ingas (Cokro) source discharge at 593 l/dt plus surface water discharge as a result frommeasurment of pulsur river (Plosowareng weir) at 696 l/dt, from the total water resource potential of 1289 l/dt.Water balance of Ingas (Cokro) water resource has already balanced or optimal, while residual discharge of294 l/dt is obtained at measurement point (Plosowareng weir)

RISK ANALYSIS STUDY OF NOx, and SOx FROM TRANSPORTATION (CASE STUDY: MAIN STREETS OF D.I. JOGJAKARTA) Arief Budihardjo, Mochamad
TEKNIK Volume 28, Nomor 1, Tahun 2007
Publisher : Diponegoro University

The air pollution problems have been progressively set attention to the world especially industrialcountries recently. These problems not only give affect at health like emphysema, bronchitis, and otherinhalation disease but also make plants and properties destruction causes very big loss. This research isconcerned with the risk level which is accepted by people who reside in roadside because most of airpollutants come from transportation facilities such as motor vehicle. The limitation of the research is airpollutants exposure such like NOx, and SOx which enter the body through respiration. This risk analysisresearch is broken down into four step as follow; hazard identification showing NO2, and SO2concentration in 15 sampling locations where the highest value of NO2 is 56,5 Î¼g / m3 and SO2 is 28,87Î¼g/m3. According to DIY Governor Regulation No. 153 Year 2002 about the value of ambient air qualitystandard, quality standard of NO2 is 400 Î¼g / m3, and SO2 is 900 Î¼g / m3. It can be concluded thatconcentration of NO2 and SO2 in 2005 within all sampling locations is still under of quality standard. Thestep of exposure assessment involves the exposed population including pedicab worker, park worker, andcloister merchant. From calculation, the intake range of NO2 enters the body is 0,0025-0,0075 mg/kg.dayand SO2 is 0,0008-0,0038 mg/kg.day. Third step is dose-response assessment to find out what will be facedby people if exposure of pollutants occurs in a certain dose. The last step is risk characterization, theresult of research is that risk value / Hazard Index (HI) less than 1 that still acceptable. It can besummarized that the ambient air quality of Jogjakarta especially NO2 and SO2 gas do not too adverse tohealth.

Penentuan Skala Prioritas Penanganan Jalan Kabupaten di Kabupaten Kudus Dengan Metode Analytical Hierarchy Process Irawan, Hafit; Ismiyati, Ismiyati; Pudjianto, Bambang
TEKNIK Vol 37, No 2 (2016): (Desember 2016)
Publisher : Diponegoro University

Pelaksanaan penanganan jalan di Kabupaten Kudus banyak terjadi ketidakseimbangan paket-paket pekerjaan penanganan jalan seperti banyaknya jalan yang belum mendapat penanganan baik pemeliharaan maupun peningkatan. Selama ini yang digunakan dalam penentuan skala prioritas penanganan jalan didasarkan pada ketersediaan anggaran dan nilai manfaat finansial jalan saja. Tujuan penelitian ini adalah memperoleh urutan prioritas penanganan jalan di Kabupaten Kudus, secara tepat dengan melibatkan pihak-pihak yang terkait. Penelitian ini menggunakan metode AHP dengan 5 (lima) kriteria yang dipakai untuk menentukan prioritas penanganan jalan, yaitu kerusakan jalan, mobilitas, volume lalu lintas, tingkat aksesibilitas, dan pengembangan wilayah. Berdasarkan analisa AHP diperoleh tingkat kepentingan bobot masing-masing kriteria untuk menentukan prioritas penanganan jalan. Hasil penelitian menunjukkan bahwa kriteria kerusakan jalan memperoleh bobot tertinggi, yaitu 45,06% kemudian kriteria mobilitas 20,62%, kriteria volume lalu lintas 14,53%, kriteria tingkat aksesibilitas 12,78%, dan kriteria pengembangan wilayah 7,01%. Kesimpulan dari penelitian ini bahwa perlu adanya kriteria-kriteria sebagai tolok ukur untuk menentukan dalam prioritas penanganan jalan agar pengalokasian anggaran tepat sasaran.Saran dari penelitian ini dalam menentukan prioritas penanganan jalan di Kabupaten Kudus sebaiknya mempertimbangkan beberapa kriteria sebagai dasar prioritas penanganan jalan.Â [Title: The Determination of The scale Priorities for Handling in Kudus Use Analytical Hierarchy Process Method]. The implementation of the road handling in Kudus, in fact is found many imbalances packets roads handling jobs like many roads yet had a good handling maintenance and enhancement. So far in setting priorities scale was based on an assessment of the availability of the budget and the value of the financial benefits. The purpose of this study is to obtain an assessment of the priority order in Kudus appropriately involving related parties. This study used AHP with 5 (five) criteria that were used to determine the priority of the road, which is damage to roads, mobility, traffic volume, accessibility, and regional development. Based on AHP analysis, we can found the level of importance weight of each criterion for determining priority road handling. The results showed that the damage criteria to obtain the highest weight, i.e. 45.06% and 20.62% mobility criteria, the criteria of traffic volume 14.53%, 12.78% level of accessibility criteria, and the criteria for regional development 7.01%. Therefore, we need criteria as a benchmark to determine the priority of the road so that the budget allocation is well targeted. The suggestion of this research in deciding the priority of roads handling in Kudus should consider some criteria as the basic priorities for theÂ handling of the road.

UJI KETELITIAN HASIL KOREKSI GEOMETRIK CITRA SATELIT ALOS PRISM DENGAN HITUNG PERATAAN KUADRAT TERKECIL METODE PARAMETER Sudarsono, Bambang; Julzarika, Atriyon
TEKNIK Volume 31, Nomor 1, Tahun 2010
Publisher : Diponegoro University

Remote sensing is a branch science of Geodesy Engineering that using satellite applications for survey andmapping. One of the natural resources satellite that be used for mapping is Alos Satellite.It is own of Japan, italso could be used in 3D Application, especially Prism and Palsar. There are some methods for making 3Dapplication that are stereo mode, interferometry, and DSM2DEM. Geometric correction of this satellite is veryimportant so it needs a study for its statistical test. Alos satellite have 3D shape as Digital Terrain Model(DSM), not Digital Terrain Model (DTM), Digitallen HÃ¶heModellen (DHM), Digital Geoid Model (DGM) orDigital Elevation Model (DEM). Alos satellite that be used are Alos Prism where it has spatial resolution in 2.5meter. The reference system of 3D model that are produced by Alos satellite image still as surface for z axis, forx axis and y axis has been closed to 2D reference system in some certain datum and system of map projection.So, this research will give result of its accuracy and precision and it could uses for the reference system.For its statistical test, it needs a method for checking its accuracy. It is least square adjustment in parametermethods. In case, it needs a research for observate the accuracy and precision of Alos satellite data using aleast square adjustment of parameter methods. Data from Alos satellite will be compared with data from Globalpositioning System (GPS) of geodetic. The results of this research will be used as reference for next research toinvent a way for changing DSM from satellite, radar, air video and interferometry-automatically.

PROSES PRODUKSI KATALIS ZEOLIT X DAN UJI AKTIFITAS DALAM PROSES PENUKARAN ION KALSIUM Widayat, Widayat; Sadikky DP, A.; Anggraeni, H.
TEKNIK Volume 33, Nomor 1, Tahun 2012
Publisher : Diponegoro University

Zeolie is a material that used in chemical process industry. Zeolite commonly used as catalyst, adsorbent adnion exchanger.Zeolite can be obtained from natural resources and synthetic in industry. The type of zeolitethatused as ion exchanger zeolite X. Zeolite X can produced hy uding hydrogel process and clay process. Thisreasearch was study influencing of temperature and ratio sodium hydroxide (NaOH) to water glass in zeolite Xpreparation. Crystallity of zeolite X was analyzed with X-ray diffraction (XRD) and the activity was used asion exchanger. Response variabel in this research is weight of zeolite X and the capability as ion exchanger.Ion exchange test that used for exchange of calsium. Calsium ion was analizyed by using complexometrymethod. The results of this research shown that zeolit X was obtained in temperature 100oC and rationweight of sodium hidroxide (NaOH) to water glass 1:2. The zeolite X can be used as ion exchanger especiallyfor calsium ion.

Peningkatan Akurasi dan Presisi Analisa Spasial Pemodelan Banjir Kota Semarang Menggunakan Kombinasi Sistem Informasi Geografis Dan Metode Logika Fuzzy Nugraha, Arief Laila
TEKNIK Vol 39, No 1 (2018): (July 2018)
Publisher : Diponegoro University

One of the efforts to prevent and reduce the impact of the flood disaster is by the availability of information packaged into a digital map of the flood-prone areas, which can be used for planning control or early countermeasures. Geographic Information System (GIS) is an appropriate method in mapping flood-prone areas for large area coverage with a relatively short time. By integrating GIS technology and precise mathematical methods, it can produce spatial analysis with good precision and accuracy. Various methods to get the value of weighting and classification one of them by doing the method of decision making using Fuzzy Logic method. With the use of Fuzzy Logic method can strengthen the hypothesis that will be achieved in mapping the identification of disaster threats in a region in this case the flood Hazard of Semarang City. Fuzzy Logic and GIS method gives more valid result than using disaster catalog method with validity value equal to 54,84% from 31 field validation point with spread of flood threat in high class dominated in Genuk subdistrict.Â

PRODUCTION OF INDUSTRY SALT WITH SEDIMENTATION â€“ MICROFILTRATION PROCESS: OPTIMAZATION OF TEMPERATURE AND CONCENTRATION BY USING SURFACE RESPONSE METHODOLOGY Widayat, Widayat
TEKNIK Volume 30, Nomor 1, Tahun 2009
Publisher : Diponegoro University

The salt of sodium chloride commonly used consumption in house , so as a raw material in industry. Thequality of salt depends on sodium chloride concentration. The objective of this research is obtained ofoptimum condition in production of salt industry by using sedimentation and microfiltration process. Theoptimization used surface response methodology and analysis by Statistica 6 software. The responseperceived is NaCl concentration in product. The experiments do by mixing stearic acid with NaOH solutionto product stearic sodium. Then, the solution mixed with sea water, so the white solid will be emerge, thereare stearic calcium and stearic magnesium. And so filtrate evaporated until to obtain salt. TheMathematical model for reduction of Ca2+ and Mg2+ are1 222 221 1 Y = 93,3185 + 1,0967 X + 0,1909 X +1,0682 X - 0,2333 X - 0,3376 X X , with maximum conversion is94,46% at temperature 82,42oC and stearic sodium concentration 14,16%(v/v). The maximum of NaClconcentration is 96,19% at temperature 81,54oC and stearic sodium concetration 13,11 %(v/v). Themathematical model for NaCl production is1 222 221 1 Y = 92,7596 - 0,3443 X - 3,3706 X + 2,9553 X - 0,9562 X - 1,9272 X X . The results of NaCl not yetfulfilled with SNI industry salt. The NaCl concetration in SNI is 98,5%. So, this process is nt aplicable forproductiob salt industry in Indonesia.

PERALIHAN MATA PENCAHARIAN SEBAGAI BENTUK ADAPTASI (Studi Kasus: Desa Batu Belubang, Bangka) Adiatma, Ira; Bambang, Azis Nur; Purnaweni, Hartuti
TEKNIK Volume 34, Nomor 2, Tahun 2013
Publisher : Diponegoro University

Bangka island as a whole has undergone a significant change related thereto. Group of fishermen coastalcommunities are the most vulnerable to changing weather and coastal environment. In the village of BatuBelubang, frequent extreme weather phenomena of the cyclone and the rapid change of weather, had forced thepopulation to adapt to climate change. The livelihoods of fishermen who rely heavily on natural conditions causethe dependence on weather patterns and ocean activities.This research uses qualitative analysis with the positivistic approach. The method of data collection is done withthe interview focused and observational field to see the real conditions and survey agencies to obtainpreliminary data regarding the level of climate change that occurred in the region. The analysis is done byassessing the linkages/relationship of the destructive effects of climate change on livelihoods of fishermen.From the analysis carried out, the main reason for the occurrence of the transition is economic livelihood. Thistransition is triggered by vulnerability due to climate change and the existence of externalities, namely adeterioration of Tin prices and the pepper in the international market in 1990 which was then backed up bypolicy changes after regional autonomy in 2001. The welfare obtained from short-term floating mines have hugeconsequences for the coastal environmental damage that would lead to a condition in which a new vulnerability.Key words : the transition of livelihood, adaptation, fisherman

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