TEKNIK
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.
Articles
444 Documents
<![CDATA[TEKNIK – Vol. 29 No. 2 Tahun 2008, ISSN 0852-1697 139 *) Staf Pengajar Jurusan D III Teknik Sipil Fakultas Teknik Undip TEGANGAN SEKUNDER PADA STRUKTUR RANGKA BATANG ]]>
<![CDATA[Purba, Parhimpunan]]>
<![CDATA[ TEKNIK Volume 29, Nomor 2, Tahun 2008 ]]>
Publisher : <![CDATA[Diponegoro University ]]>
Show Abstract
|
Download Original
|
Original Source
|
Check in Google Scholar
|
Full PDF (153.268 KB)
|
DOI: 10.14710/teknik.v29i2.1935
<![CDATA[In our previous analysis of trusses, it was always assumed that the truss members are joined by idealhinges and that loads are applied only at joints. The centroidal axes all of members are stright,coincide with the lines connecting the joint center, and lie in a plane that also contains the lines ofaction of all the loads and reaction. Thus the members of truss are subjected to axial force only, andthese can be determined by static method. A stress analysis base on these assumtion leads to thedetermination of so – called “primary stressesâ€.In actual cases the joint are usually riveted or welded; and because of this fact the members undergo,not only axial forces, but also bending stresses from secondary moment, cuased by this condition arecalled “secondary stressesâ€. In discusing secondary stresses we shall consider only trussses in oneplane and assume that this plane represents the plane of symmetri for all members and that externalloads are acting in the same plane. Of these the most important are caused by the fact that the jointare rigid, and hence the members are not free to change their relative directions when the truss isdeformed. This problem can likewise be solved very eficiently by means of moment distibution.From the first analyze result, it was obtained the scondary tension ratio with the primary tension at thepull shaft about 19.20 %. This result is significant that it will increase the existence of primary tension.At the analyze by SAP 2000 is obtained that the end tension much more lower than the scondarytension in the first analyze. This is need to obtain attention at planning trusses.]]>
<![CDATA[ROLE OF COLOR TO SUPPORT THE ACHIEVEMENT OF RELAXATION IN BUSSINES HOTEL (CASE STUDIES OF BUSINESS HOTEL IN SEMARANG) ]]>
<![CDATA[Elsosan, Adel Issa]]>;
<![CDATA[Pandelaki, Edward E.]]>;
<![CDATA[Murtini, Titin Woro]]>
<![CDATA[ TEKNIK Vol 36, No 2 (2015): (December 2015) ]]>
Publisher : <![CDATA[Diponegoro University ]]>
Show Abstract
|
Download Original
|
Original Source
|
Check in Google Scholar
|
Full PDF (481.052 KB)
|
DOI: 10.14710/teknik.v36i2.8715
<![CDATA[Semarang sebagai pusat bisnis dan pariwisata di Jawa Tengah memberikan kesempatan bagi investor untuk berinvestasi di Semarang. Akhir-akhir ini bisnis perhotelan di Kota Semarang menunjukkan prospek cerah. Hal ini dapat dilihat dari meningkatnya jumlah wisatawan yang menginap di hotel. Salah satu alasannya adalah banyak kegiatan seperti pertemuan yang diselenggarakan oleh instansi pemerintah, baik lokal maupun nasional, yang diselenggarakan di kota Semarang. Berdasarkan hasil survei awal, sebagian besar hotel di Semarang masih minim fasilitas dan tidak berlaku pentingnya pelaksanaan warna bagi pengunjung. Studi tentang peran warna untuk mencapai relaksasi ini penting karena jika relaksasi mencapai sehingga manusia dapat membuat lebih konsentrasi dan merasa menyegarkan. Tujuan dari penelitian ini adalah: Studi tentang bagaimana warna mempengaruhi dalam penciptaan relaksasi di hotel bisnis di Semarang. Sampel penelitian diarahkan ke hotel menggunakan warna dingin dan hotel warna hangat di Semarang. Metode analisis yang digunakan adalah analisis deskriptif. Berdasarkan hasil dan analisis, kesimpulan dalam penelitian ini adalah: (1) Warna dalam menciptakan relaksasi sangat penting bagi responden dan kedua warna dingin dan warna hangat dapat membuat dan menciptakan relaksasi. (2) Hal-hal yang mempengaruhi pemilihan warna untuk meningkatkan bisnis hotel adalah tujuan untuk tinggal di hotel, pertimbangan ini untuk bekerja dan nilai pribadi seperti liburan, juga relaksasi. [Title: Role of Color to Support The Achievement of Relaxation in Bussines Hotel (Case Studies of Business Hotel in Semarang)] Semarang as a business and tourism hub in Central Java provides an opportunity for investors to invest in Semarang. Lately the hospitality business in the city of Semarang show bright prospects. It can be seen from the increasing number of tourists who stay at the hotel. One reason is that many activities such as meetings held by government agencies, both local and national, held in the city of Semarang.Based on the results of the initial survey, most hotels in Semarang still minimal facilities and do not apply the importance of the implementation of color for visitors. Study about role of color to achieve relaxation is important because if the relaxation achieve so human can make more concentration and feel refresh. The aim of this study is: Study about how colors influence in creation of relaxation in business hotel in Semarang. The research sample is directed to the hotel using a cool color and a warm color hotel in Semarang. The method analysis used is descriptive analysis. Based on the result and analysis, the conclusion in this research are: (1) Thecolor in creating relaxation is very important for the respondent and both cool color and warm color can make and creating relaxation. (2)The things that affect the selection of colors to enhance the hotel business is for the purpose to stay in hotel, the consideration is for work and personal value such as holiday, also the relaxation. ]]>
<![CDATA[INVENTARISASI PERUBAHAN WILAYAH PANTAI DENGAN METODE PENGINDERAAN JAUH (STUDI KASUS KOTA SEMARANG) ]]>
<![CDATA[Sudarsono, Bambang]]>
<![CDATA[ TEKNIK Volume 32, Nomor 2, Tahun 2011 ]]>
Publisher : <![CDATA[Diponegoro University ]]>
Show Abstract
|
Download Original
|
Original Source
|
Check in Google Scholar
|
Full PDF (533.137 KB)
|
DOI: 10.14710/teknik.v32i2.1699
<![CDATA[The environment change in the coastal area can be caused by nature factors for example abrasion,sedimentation and by human factor for example is coastal reclamation. The environment change in the coastalarea can influence change of coastline.Change of coastline can be evaluated and surveyed based on map and satellite image. The coastline changedetection in Semarang City had been done for several years based on Semarang City’s topographic map (1938)and Quickbird Satellite Image (2006).The research change of coastline carried out by Remote Sensing Method and Geographic Information System.Based on research and field survey in Semarang City, there are significant coastline changes includingabrasion, sedimentation and reclamation.Conclusion can be obtained from this research is the wide change because coastline change in Semarang Cityfrom 1938 until 2006: which caused by reclamation factor and sedimentation factor is equal 502.437 Ha, andabrasion factor is equal 458,323 Ha.]]>
<![CDATA[INVERTER MULTI LEVEL TIPE JEMBATAN SATU FASA TIGA TINGKAT DENGAN MIKROKONTROLER AT89S51 ]]>
<![CDATA[A. Warsito, A. Warsito]]>;
<![CDATA[M. Facta, M. Facta]]>;
<![CDATA[Aptono. T.Y, Aptono. T.Y]]>
<![CDATA[ TEKNIK Volume 28, Nomor 2, Tahun 2007 ]]>
Publisher : <![CDATA[Diponegoro University ]]>
Show Abstract
|
Download Original
|
Original Source
|
Check in Google Scholar
|
Full PDF (2444.979 KB)
|
DOI: 10.14710/teknik.v28i2.2111
<![CDATA[Inverter is a power electronics circuit which is used to convert DC voltage and current to AC voltage andcurrent. In conventional inverter, most commonly used, only has three level voltage, those are +Vdc, -Vdc,and zero. Meanwhile both square inverters and SWPM inverter has big harmonic distortion. In SPWMinverter scheme, high frequency switching must be used to minimize total harmonic distortion (THD). Multilevel inverter is a type of inverter that has more than one level of voltage and current output.The major advantages of multi level inverters are a good voltage waveform, small harmonic dirtortion,switching component operated under low frequency, and it can supply a big power.This paper will discuse the construction of single phase three level multi level inverters, hardware testinginclude output waveform THD, and the comparisson of multilevel inverter with other conventional invertersscheme suc as PWM inverters modulation, and square waveform inverter. Atmel’s AT89S51 microcontrollerused to control switching scheme in this multi level inverter. By this power electronic circuit, it is expected alow cost and reliable multi level inverters prototipe.]]>
<![CDATA[Pengaruh Desa Wisata Kampoeng Batik Laweyan terhadap Fungsi Permukiman di Kelurahan Laweyan Kota Surakarta ]]>
<![CDATA[Mangedaby, Eva Artmey]]>;
<![CDATA[Setioko, Bambang]]>;
<![CDATA[Sari, Suzanna Ratih]]>
<![CDATA[ TEKNIK Vol 38, No 1 (2017): (Juli 2017) ]]>
Publisher : <![CDATA[Diponegoro University ]]>
Show Abstract
|
Download Original
|
Original Source
|
Check in Google Scholar
|
Full PDF (401.959 KB)
|
DOI: 10.14710/teknik.v38i1.12057
<![CDATA[Kota Surakarta merupakan salah satu sentra produksi batik di Jawa Tengah yang terkenal karena batik berkualitas, salah satu nya adalah sentra batik yang berada di Kampung Batik Laweyan. Kampung batik yang terletak di Kelurahan Laweyan ini tengah marak di Indonesia karena merupakan salah satu daerah tujuan wisata. Sebagai kampung batik yang saat ini tengah popular, membuat kawasan permukiman di Kelurahan Laweyan juga mengalami perubahan. Hal ini terlihat dari bentuk dan tata ruang rumah itu sendiri. Perubahan ini tidak hanya terjadi pada kampung batik Laweyan saja tetapi satu Kelurahan Laweyan, sehingga mengakibatkan tidak tersedianya ruang terbuka hijau di Kelurahan Laweyan. Penelitian ini bertujuan untuk mencari pengaruh desa wisata Desa Kampung Batik Laweyan terhadap fungsi permukiman di Kelurahan Laweyan serta untuk menentukan seberapa besar pengaruh desa wisata Kampung Batik Laweyan terhadap fungsi permukiman di Kelurahan Laweyan Kota Surakarta dan bagaimana pengaruhnya. Metode penelitian yang digunakan adalah metode kuantitatif dengan pendekatan korelasi memakai analisis likerts serta analisis skoring berdasarkan asumsi yang sudah ditetapkan kemudian di uji dengan analisa regresi linear berganda menggunakan uji SPSS. Teknik analisis data dalam penelitian ini menggunakan statistik deskriprif untuk mengambil kesimpulan dari sampel yang diuji. Proses penelitian ini melalu tiga tahapan yaitu kompilasi data, pemberian kode variabel dan pengolahan data dengan analisa regresi. Hasil temuan studi yang didapat setelah melalui tahapan-tahapan tersebut adalah desa wisata Kampung Batik Laweyan mempengaruhi fungsi permukiman di Kelurahan Laweyan Kota Surakarta sebesar 81,6% sedangkan sisanya 18,4% dipengaruhi oleh faktor lain diluar model. Pengaruh desa wisata Kampung Batik Laweyan terhadap fungsi permukiman di Kelurahan Laweyan Kota Surakarta adalah dengan berubahnya fungsi permukiman di Kelurahan Laweyan yang dulunya hanya sebagai hunian sekarang berubah menjadi hunian dan tempat usaha, serta penambahan fasilitas pendukung wisata lainnya, selain itu juga terdapat penambahan street furniture yang menjadi ciri khas desa wisata Kampung Batik Laweyan. Sedangkan untuk faktor lain yang memperngaruhi diluar model adalah sejarah kawasan dan perubahan tata guna lahan. Peran stakeholders yang terkait seperti pemerintah, swasta dan masyarakat sangat diperlukan. Pemerintah berperan sebagai pengelola dan fasilitator, swasta sebagai pembantu pelaksana program pemerintah sedangkan masyarakat bisa berpartisipasi dalam pengembangan desa wisata Kampung Batik Laweyan. Â Kata Kunci: Kampung Batik, Desa Wisata, Permukiman, Fungsi Permukiman]]>
<![CDATA[PENAJAMAN DAN SEGMENTASI CITRA PADA PENGOLAHAN CITRA DIGITAL ]]>
<![CDATA[Awaluddin, Moehammad]]>;
<![CDATA[Darmo Y, Bambang]]>
<![CDATA[ TEKNIK Volume 31, Nomor 1, Tahun 2010 ]]>
Publisher : <![CDATA[Diponegoro University ]]>
Show Abstract
|
Download Original
|
Original Source
|
Check in Google Scholar
|
Full PDF (2140.426 KB)
|
DOI: 10.14710/teknik.v31i1.1756
<![CDATA[Image processing takes an image to produce a modified image for better viewing or some other purposes Imageanalysis takes an image into something other than an image such as number of object types, size of an object,etc.The main purpose of Enhancing Image is to produce image in order to have a suitable image forApplication requirement. Image segmentation is divided into a several segment considering area of the object.We need the Enhancement technique and segmentation to have a good image. In this case , it was trying toprocess image with a several stage , stretching, lowpass filter, laplace filter, edgesenh filter and clustering inSPOT image in aceh coverage area.]]>
<![CDATA[PENGARUH KADAR LUMPUR PADA AGREGAT HALUS DALAM MUTU BETON ]]>
<![CDATA[Purwanto, Purwanto]]>;
<![CDATA[Arni Priastiwi, Yulita]]>
<![CDATA[ TEKNIK Volume 33, Nomor 2, Tahun 2012 ]]>
Publisher : <![CDATA[Diponegoro University ]]>
Show Abstract
|
Download Original
|
Original Source
|
Check in Google Scholar
|
Full PDF (989.594 KB)
|
DOI: 10.14710/teknik.v33i2.4385
<![CDATA[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%.]]>
<![CDATA[Penilaian Risiko Sistem Informasi Fakultas Teknik Universitas Diponegoro Menggunakan Metode Failure Mode Effect And Analysis Berbasis Framework ISO 27001 ]]>
<![CDATA[Handayani, Naniek Utami]]>;
<![CDATA[Wibowo, Mochammad Agung]]>;
<![CDATA[Sari, Diana Puspita]]>;
<![CDATA[Satria, Yoga]]>;
<![CDATA[Gifari, Akbar Romadhona]]>
<![CDATA[ TEKNIK Vol 39, No. 2 (2018): Desember 2018 ]]>
Publisher : <![CDATA[Diponegoro University ]]>
Show Abstract
|
Download Original
|
Original Source
|
Check in Google Scholar
|
Full PDF (224.165 KB)
|
DOI: 10.14710/teknik.v39i2.15918
<![CDATA[The data leakage and misuse of information by unauthorized parties that had happened forces the protection of security of information system in the Faculty of Engineering Diponegoro University (SIFT UNDIP) to be improved. This research aims to identify the risks, to analyze security of information system management, and to  determine risk priority in SIFT UNDIP. This research is conducted using Failure Mode Effect and Analysis method based on ISO 27001 framework. Analysis results show that there are 25 risk agents in SIFT UNDIP which are categorized into four types of assets. The highest risk in High Level Risk category is the risk of dependence on employees which has Risk Priority Number value of 80.]]>
<![CDATA[PENURUNAN KANDUNGAN PHOSPHAT PADA LIMBAH CAIR INDUSTRI PENCUCIAN PAKAIAN (LAUNDRY) MENGGUNAKAN KARBON AKTIF DARI SAMPAH PLASTIK DENGAN METODE BATCH DAN KONTINYU (Studi Kasus : Limbah Cair Industri Laundry Lumintu Tembalang, Semarang) ]]>
<![CDATA[Wisnu Wardhana, Irawan]]>;
<![CDATA[Siwi Handayani, Dwi]]>;
<![CDATA[Ika Rahmawati, Dessy]]>
<![CDATA[ TEKNIK Volume 30, Nomor 2, Tahun 2009 ]]>
Publisher : <![CDATA[Diponegoro University ]]>
Show Abstract
|
Download Original
|
Original Source
|
Check in Google Scholar
|
Full PDF (220.797 KB)
|
DOI: 10.14710/teknik.v30i2.1868
<![CDATA[Increasing the number of laundry industry influences on the increasing of detergent utilizzation. Thedominant substance contained in the detergent is Natrium Tripolyphosphat, a builder and surfactant.Therefore the waste contains Phosphate. Most of the laundry industry throw their waste without treatmentfirst. The waste would cause Eutrofication where the water body became rich of dissolved nutrient,descending of the dissolved oxygen and capability of water body assist power to water biota. Lumintu isone of the laundry industries which located in Tembalang district. According to the result of preexperiment,industrial waste water containes 10,21 mg/l phosphate. This value exceeds standard quality ofPerda Prov. Jateng no. 10 year 2004 about maximum value for total of phosphate is 2 mg/l. One ofwastewater treatment method is adsorption using the active carbon from plastic rubbish kind ofPolyethylene. This reseach purposes to know the capability of active carbon from plastic rubbish inreducing phosphate content with batch and column operation. The batch operation use 1,2 and 3 gramvariation weight active carbon from plastic rubbish for 30 - 60 mesh and 100 - 200 mesh variation mediasize. The batch operation has 45,45 % from the highest phosphate efficiency lowering on the 3 gram.Otherwise, column operation need 1 inch column diameter with 50 ml/minute and 100 ml/minute debitvariation. Continue trial had 54,75 % from the highest phosphate efficiency lowering on the 50 ml/minute.Constant value speed (k1) is 0,0108 ml/mg.s with capacity of adsorption (qo) 0,677 mg/g.]]>
<![CDATA[PEMANFAATAN PEMETAAN TEMATIK UNTUK ANALISIS KEBOCORAN JARINGAN PIPA DISTRIBUSI DI PDAM DEMAK ]]>
<![CDATA[Sudarsono, Bambang]]>;
<![CDATA[Nugraha, Arief Laila]]>
<![CDATA[ TEKNIK Volume 34, Nomor 3, Tahun 2013 ]]>
Publisher : <![CDATA[Diponegoro University ]]>
Show Abstract
|
Download Original
|
Original Source
|
Check in Google Scholar
|
Full PDF (142.003 KB)
|
DOI: 10.14710/teknik.v34i3.6981
<![CDATA[Problems that are often faced by water companies, particularly in PDAM Demak are water leaks in the distribution channel. The problem became a threat resulting considerable loss to PDAM Demak. The problem requires a solution to help the PDAM Demak to analyze the distribution pipelines become more optimal. One method used to solve the pipeline leakage in the distribution network PDAM Demak is doing thematic mapping distribution pipeline represents the actual field conditions. Furthermore the results of thematic mapping is processed through Geographic Information Systems (GIS) can be simulated distribution of water flow conditions to determine the level of water leakage occurs. Simulation results , which is done through software EPANET 2.0, a reference to find out which areas have a tendency to water leaks. The area can be mapped on a thematic map that has been built so as to provide information areas prone to leak water in PDAM Demak. Thematic mapping of distribution pipeline is done by GPS navigation survey. The mapping produces a thematic maps as a basemap for water distribution simulation process. Simulation results illustrate that the village Sidomulyo into areas prone to water leakage with the highest rate of water loss is 24,50% from 44.022 m3of water production in December 2012.]]>
