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Jurnal Ilmiah Dinamika Rekayasa (DINAREK)
Published by Universitas Jenderal Soedirman
ISSN : 18583075     EISSN : 25276131     DOI : -
Core Subject : Engineering,
Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering
DINAREK is a scientific journal published by Engineering Departement of Jenderal Soedirman University. DINAREK is a peer reviewed nasional journal in Indonesian, published two issues per year (February and August). DINAREK is to publish high-quality articles dedicated to all aspects of the latest outstanding developments in the field of engineering. Its scope encompasses the engineering of signal processing, electrical (power), electronics, instrumentation & control, telecommunication, Geological Engineering, Civil Engineering, Computing and informatics, and Industrial Engineering.
Arjuna Subject : -
Articles 270 Documents
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Estimasi Kinerja Kanal MIMO-OFDM Menggunakan Modulasi Adaptif Untuk Teknologi LTE Berdasar Pada Kecepatan Pelanggan Widhiatmoko Hery Purnomo; Hesti Susilawati; Ari Fadli
Dinamika Rekayasa Vol 11, No 1 (2015): Jurnal Ilmiah Dinamika Rekayasa - Februari 2015
Publisher : Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.dr.2015.11.1.89

Abstract

OFDM dipakai untuk teknik multiple accesspada downlink LTE. Dalam teknologi LTE, parameter kecepatan user sangat berpengaruh terhadap kualitas jaringan.Pada OFDM, estimasikanalsangatdiperlukan untuk mengatasi fading dan noise.Semakin besar kecepatan user maka semakin besar nilai fading dan noise.Untuk mengatasi masalah tersebut diperlukan estimasi kanal yang digunakan. Metode estimasi kanal yang banyak digunakan ada dua yaitu metode Least Square (LS) dan metode Minimum Mean Square Error (MMSE). Kedua metode tersebut digunakan pada penerima diam dan penerima bergerak dengan modulasi QPSK, 16-QAM, dan 64-QAM. Simulasi dilakukan untuk mengetahui metode estimasi kanal pada beberapa variasi kecepatan user. Hasil analisa menunjukkan bahwa estimasi kanal dengan metode MMSE lebih baik dibandingkan metode LS. Sedangkan pada penerima dengan kecepatan rendah memiliki kualitas jaringan yang lebih baik dibandingkan pada penerima dengan kecepatan tinggi.
Penerapan Penjamakan Sinkron Pada Jaringan SDH Kholistianingsih Kholistianingsih
Dinamika Rekayasa Vol 2, No 1 (2006): Dinamika Rekayasa - Februari 2006
Publisher : Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.dr.2006.2.1.13

Abstract

SDH (Synchronous Digital Hierarchy) is a multiplexing system based on TDM (Synchronous Digital Hierarchy) that is a frame is divided in to timeslot (path) and contains payload and overhead, which enable to transmit various different services and different bit rate in the same frame. The application of synchronous multiplexing of SDH Network becomes an interface for various telecommunication signal processing.
Analisis Pengaruh Down Tilt Antena Untuk Mengurangi Kegagalanhandover Pada Jaringan Seluler GSM PT. Indosat, Tbk. Purwokerto Wahyu Dewantara; Azis Wisnu Widhi Nugraha; Widhiatmoko Hery Purnomo
Dinamika Rekayasa Vol 6, No 2 (2010): Dinamika Rekayasa - Agustus 2010
Publisher : Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.dr.2010.6.2.36

Abstract

Handover is a process to guarantee the MS (Mobile Station) communication connection while moving for one cell to another cell. There are 10,89%-12,04% handover failure occurred between BTS Cilongok sector 1 and BTS Karanglewas sector 3 of PT. Indosat, Tbk,Purwokerto, whereas, thestandard is 2%-3%. Based on KPI (Key Performance Indicator) data most of handover failure is caused by long overlapping coverage (1,2851 km) as could be seen in BSC Controlled Inc. HO Fail at the amount of 9,69%-10,24%. Long overlapping coverage also reduce Rx Level signal quality to-94 dBm (threshold-90 dBm), and Rx Qual is 2,26 (it is still good enough if comparing to the threshold 5). Down tilt antenna method is used to overcome the overlapping coverage. Calculation result of down tilt antenna points out that the precise down tilt antenna to be applied in BTS Cilongok sector 1 is 3º and BTS Karanglewas sector 3 is 2,5º with number of overlapping coverage 78,2 m (appropriate to reference of PT. Indosat, Tbk Purwokerto�100 m). After down tilting antenna indicates that there is a reduction of handover failure because of overlapping coverage reduce to 0,01%- 0,02%, and total handover failure reduce to 0,62%- 1,39% . Meanwhile there is a raising in signal quality,it is Rx Level become-75 dBm and thebetter size of Rx Qual is 1.
Perbaikan Sifat Reologi Visco-Elastic Aspal dengan Penambahan Asbuton Murni Menggunakan Parameter Complex Shear Modulus Eva Wahyu Indriyati; Bambang Sugeng Subagio; Harmein Rahman
Dinamika Rekayasa Vol 9, No 2 (2013): Jurnal Ilmiah Dinamika Rekayasa - Agustus 2013
Publisher : Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.dr.2013.9.2.70

Abstract

The increasing demand of crude oil will increase the price of petroleum asphalt. Indonesia has imported asphalt to meet the need for the annually road construction and maintenance. One solution to improving the rheological properties of bitumen is by adding the harder bitumen or other chemical compound to reduce dependence to petroleum asphalt. In Indonesia there is a source of natural asphalt in Buton Island, Sulawesi with huge amount of deposit that potentially could improve the rheological properties of Pen 60/70 Petroleum Asphalt. In order to obtain a better understanding on the contribution of Asbuton to the improvement of performance on rheological properties, this research used 19 variations of Asbuton and pen 60/70 petroleum bitumen. This variation is then subjected to the basic rheology test and the mechanistic test using Dynamic Shear Rheometer. The conclusion of basic rheological performance is obtained that mixture (Asbuton and 60/70 petroleum bitumen) will increase hardness of bitumen. Conclusion on mechanistic rheological performance is that mixture (Asbuton and 60/70 petrol bitumen) will increase Performance Grade (PG) and Complex Shear Modulus (G*). The results from the analysis of Master Curve and Black Diagram, it is shown that the increasing proportion of bitumen Asbuton will decrease the phase angle (δ) but its temperature susceptibility is worse.
Kondisi Kualitas Air Sungai Gadjah Wong Berdasarkan Parameter Klorofil-a Yanto Yanto
Dinamika Rekayasa Vol 1, No 1 (2005): Dinamika Rekayasa - Agustus 2005
Publisher : Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.dr.2005.1.1.2

Abstract

Measurement of water quality is always experience method advanced time by time. Advancing in method of water quality measurement directing to easier, faster and more valid technique. Beside parameters such as DO, BOD5, KMnO4that is always used to determine water quality, chlorophyll-a could be the one of parameters that is used to measure the healthy of water body. Chlorophyll-a is commonly used to measure trophic status of water body. Chlorophyll-a can be measured in easy, fast and valid technique. Therefore, chlorophyll-a could be used as practical methode in measurement of water quality. This research is ordered to find formulative correlation between chlorophyll-a with DO, BOD5, KMnO4. Knowing formula related among those parameters, we know the value of DO, BOD5, KMnO4 only by measure the value of chlorophyll-a. Based on this research formulative correlation between chlorophyll-a with DO, BOD5, KMnO4 is couldn�t be founded. But, from this research can be resumed that Gadjah Wong river trophyc status is mesotrophyc-eutrophyc
Karakteristik Pergerakan Pekerja Kawasan Industri Rambut di Jalan Jend. A.Yani Kabupaten Purbalingga Hardini, Probo
Dinamika Rekayasa Vol 6, No 1 (2010): Dinamika Rekayasa - Februari 2010
Publisher : Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.dr.2010.6.1.27

Abstract

Activity of land use at roadside oftentimes generates trouble in the form of resistance that cause to road and street performance. Hair industries at Jalan Jend. A. Yani caused friction side that influence street performance. This research identify hair industry’s worker characteristic by questioner method. The result tell us how distance influence ammount of worker. Mode preference of worker is influenced by their total revenue and gender. In gender case, there’s nothing can influence mode choice for man. But in woman side, travel time and distance influence mode choice. We knew that worker movement is short movement from their choices of mode and their transport cost. This research is conducted to supply worker mass transport in order to reduce their movement acvitiy effect, especially for A. Yani street performance.
Tahanan Lateral Bambu Laminasi dengan Konektor Pelat Disisipkan Menggunakan Sambungan Baut I G.L.B. Eratodi; A. Triwiyono; A. Awaludin
Dinamika Rekayasa Vol 10, No 1 (2014): Jurnal Ilmiah Dinamika Rekayasa - Februari 2014
Publisher : Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.dr.2014.10.1.60

Abstract

Analisis tahanan lateral beberapa alat sambung telah diusulkan Europen Yield Model (EYM) tahun 1949. Beban leleh berupa nilai tahanan lateral (Z) dapat diprediksi dengan mengetahui nilai geometri sambungan, tegangan leleh dowel dan kuat tumpu dowel. Pengujian tahanan lateral ini dilakukan dalam rangka mengetahui kemampuan sebuah baut dengan model sambungan pelat besi disisipkan pada bambu laminasi. Tahanan lateral sejajar dan tegak lurus arah serat-serat dibutuhkan dalam merencanakan sambungan struktural. Pada uji tahanan lateral ini dibedakan menjadi dua, tahanan lateral tegak lurus serat dan tahanan lateral sejajar serat. Dimensi benda uji tahanan lateral tegak lurus serat adalah 2 buah balok bambu laminasi dengan dimensi 37,5×76×180 mm, dan dimensi tahanan lateral sejajar serat 83×76×200 mm. Hasil penelitian menunjukkan teori Yield Mode dari EYM dapat memprediksi nilai tahanan lateral bambu laminasi. Perbedaan hasil ekperimen sebesar 8,05% lebih tinggi dari teori yield mode pada tahanan lateral tegak lurus serat dan 8,38% pada tahanan lateral sejajar serat. Nilai Poffset 5% sebesar 12,34 kN selip pada 4,82 mm dan kekakuan rata-rata sebesar 3,050 kN/mm pada tahanan lateral tegak lurus serat. Uji tahanan lateral sejajar serat memiliki nilai Poffset 5% rata-rata sebesar 20,3 kN dan kekakuan awal sebesar 6,144 kN/mm pada nilai selip rata-rata 3,99 mm.
Analisis Penyebab Tanah Longsor di Kalitlaga Banjarnegara Apriyono, Arwan
Dinamika Rekayasa Vol 5, No 1 (2009): Dinamika Rekayasa - Februari 2009
Publisher : Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.dr.2009.5.1.18

Abstract

Indonesia is one country that has many areas vulnerable to landslides. To the present time, there are many victims of disasters caused by landslides in Indonesia. To handle the landslide disaster, requires some knowledge about the causes, mechanisms and appropriate mitigation efforts against disasters mentioned above. Causes and mechanisms of landslides is necessary in determining the  mitigation in order to the victim can be minimized.This paper is an analytical study of the causes of landslides at Kalitlaga Village, Pagentan Sub district, Banjarnegara Regency. Causes of  landslides determined by analyzing the results of field investigation and supporting data (topographic and geological maps at the research location). The analysis results, also be used to determine the proper method of handling landslides in the area. Based on the results investigation field, it can be concluded that the main cause of landslides at Kalitlaga is topographic factors. Kalitlaga Village is located in the mountain range with a fairly steep slope ranges from 20o - 45o. The other cause of landslides is a poor drainage system in the village. Besides, based on geological maps, geological structure in the area included breksi rock in tapak formation, which has a sandstone soil type, breksi andesite composition and the organic soil. The characteristics of this soil type have a low cohesion value with a high permeability, so that condition also supports the occurrence of landslides. Kalitlaga landslide in the village can be minimized by manage the drainage system. Besides, efforts such as cutting of the slopes also need to be done at some location.
Pembuatan Model Geologi Bawah Permukaan dengan Metode Geolistrik Dan Studi Stratigrafi pada Rembesan Gas DiJatilawang, Banyumas Purwasatriya, Eko Bayu; Waluyo, Gentur
Dinamika Rekayasa Vol 7, No 2 (2011): Dinamika Rekayasa - Agustus 2011
Publisher : Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.dr.2011.7.2.50

Abstract

Banyumas basin is oneof sedimentary basin inIndonesia whichhasn’t proven yet its economical hydrocarbonreserves, although there are several oil and gas seeps in this area which is indicate mature source rocks had been migrated. One of itsgas seep is located on Karanglewas village, Jatilawang, Banyumas which hadbeen flowing its gases since tens years ago. Geoelectrical method and Stratigraphic studyare the methods usedin this research to built a geological subsurface model of Jatilawang’s gas seep.Geoelectrical method isintent to finding the distribution of gas seep over the area and also to finding the direction of fault structure which can be act asa path for gases to flowing up. Stratigraphic study comprise of lithology description, strike and dip measurement, and study of other secondary geological data. Interpreted subsurfacegeological model showing that sandstone dominated bed of Halang Formation is filled by gases and become gas pockets near the surface. Fault direction also interpreted from correlation of these gas pockets and resulting directionof N 115° E and dip of fault plane is45°.Gas flowing through fault and probably the source comes from gas cap of Jatilawang’s anticline. Predicted location of gas cap is about 610 meters to the south, and depthabout 620 meters.
Pengaruh Panjang Penyaluran Sambungan Terhadap Kekuatan Balok Beton Pracetak Tulangan Bambu Nanang Gunawan Wariyatno; Yanuar Haryanto; Gathot Heri Sudibyo
Dinamika Rekayasa Vol 11, No 1 (2015): Jurnal Ilmiah Dinamika Rekayasa - Februari 2015
Publisher : Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.dr.2015.11.1.94

Abstract

Kajian ini bertujuan untuk mengetahui pengaruh panjang penyaluran sambungan terhadap kekuatan balok beton pracetak tulangan bambu. Kajian dilakukan terhadap 6 tipe benda uji, masing-masing balok tulangan baja, balok tulangan bambu, balok pracetak penyaluran 5 cm, balok pracetak penyaluran 7 cm, balok pracetak penyaluran 9 cm, dan balok pracetak penyaluran 9 cm tanpa diangkur. Benda uji memiliki dimensi 120 mm x 150 mm x 600 mm dengan masing-masing tipe dibuat sejumlah 3 buah, dan pengujian dilakukan dengan pembebanan dua titik. Hasil kajian memperlihatkan bahwa kekuatan balok tulangan bambu memiliki rasio 0,53 terhadap kekuatan balok tulangan baja. Panjang penyaluran sambungan yang menghasilkan kekuatan tertinggi pada balok pracetak adalah 7 cm dengan rasio 0,21. Pengangkuran menghasilkan peningkatan kekuatan sebesar 47,20% pada balok pracetak dengan panjang penyaluran sambungan 9 cm. Keruntuhan balok pracetak terjadi pada sambungan.

Page 5 of 27 | Total Record : 270

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