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TEKNIK

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 522 Documents

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PENGARUH ACTIVITY SUPPORT TERHADAP KAWASAN PECINAN SEMARANG DI MALAM HARI Anugeraheni, Stella Prita; Rukayah, R. Siti; Setioko, Bambang
TEKNIK Vol 36, No 1 (2015): (Juli 2015)
Publisher : Diponegoro University

Koridor Gang Warung merupakan koridor yang berada di kawasan perdagangan dan jasa ini terletak di kawasan pecinan yang merupakan kawasan bersejarah yang juga dikenal dengan sebutan â€œseribu kelentengâ€. Keadaan lingkungan ini memiliki perbedaan pada saat malam hari. Keberadaan activity support pada malam hari berupa Waroeng Semawis merupakan salah satu kegiatan pendukung yang memiliki tujuan yakni mengembalikan fungsi kawasan pada malam hari yang mempengaruhi pada karakter visual yang muncul dari bangunan sekitarnya. Penelitian ini memiliki tujuan untuk mengetahui pengaruh activity support berupa bazaar malam terhadap karakter visual kawasan pecinan. Metode yang digunakan adalah metode kuantitatif rasionalistik dengan menggunakan analisa deskriptif dan pengujian regresi karena tujuan dari penelitian ini adalah menggali informasi mengenai pengaruh kegiatan activity support. Metode ini digunakan karena adanya perbedaan penilaian dan persepsi individu terhadap karakter visual yang disebabkan oleh activiy support pada malam hari. Adanya activity support berupa Waroeng Semawis dapat memberikan kontribusi dalam pengenalan karakter pecinan di koridor gang warung ini dengan keramaian dan beberapa kegiatan di dalamnya, yang tentunya diperkuat dengan adanya pencahayaan yang berasal dari kios, sehingga memunculkan kegiatan yang memberi kesan penciptaan karakter visual kawasan.[Influence of Activity Support Towards Visual Characteristic of Chinatown at Night] Gang Warung corridor is a corridor in the area of trade and services, that located in the Chinatown area which is a historical district which is also known as the "thousand temples". It has a different environmental conditions during the night. The existence of support activity at night in the form of Waroeng Semawis is one of the supporting activities that have the purpose of restoring the function of the area at night which affect the visual character of the surrounding buildings appear. This study has the purpose to determine the effect of a support activity to the night bazaar area of the visual character of Chinatown. Quantitative is the method used with rationalistic method using descriptive analysis and regression testing for the purpose of this study is to explore the influence of information on the activities of the activity support. This method is used because of differences in assessment and individual's perception of the visual character caused by activity support during the night. The existence of a activity support, Waroeng Semawis can contribute in Chinatown characteristic recognition in this shop alley corridor with the crowd and some of the activities in it, which is certainly reinforced by the lighting coming from the stall. Giving rise to activities that provide for the creation of visual character of the area.

SISTEM PENGUKURAN KINERJA DENGAN METODE PERFORMANCE PRISM (Studi Kasus di RUMAH SAKIT ISLAM SULTAN AGUNG SEMARANG) Prastawa, Heru; Pujotomo, Darminto; Arvianto, Ary; Khoirunnisa, Fithria
TEKNIK Volume 32, Nomor 1, Tahun 2011
Publisher : Diponegoro University

Sultan Agung Islamic Hospital Semarang is a healthcare institution owned by Yayasan Badan Wakaf SultanAgung. To survive against the competitors, the hospital must have a good performance. Thus, a properperformance measurement system is required to assist the company in informing the hospital, so they know howfar has their effort worked in achieving the companyâ€™s vision and mission, including to analyze how far has thecompany developed. The researcher intends to design a performance measurement system using theperformance prism method at Sultan Agung Islamic Hospital Semarang. Designing a performance measurementsystem by implementing the performance prism method is sequenced by several phases. Firstly, identify thesatisfaction and stakeholderâ€™s contribution, strategy identification phase, process, and capability, KeyPerformance Indicator (KPI) identification phase, weighing KPI by Analytical Hierarchy Process (AHP) phase,achieving performance targets by an Objective Matrix (OMAX) phase, and the calculation phase of performancevalue in numbers. After we calculate the weighed KPI and performance value, a simulation is conducted to knowthe criteria and KPI elements that is prioritized a suggestion, improvement recommendation that could beapplied to enhance the performance of Sultan Agung Islamic Hospital Semarang

SISTEM VENTILASI DALAM KAPAL Utomo, Budi
TEKNIK Volume 28, Nomor 1, Tahun 2007
Publisher : Diponegoro University

Ventilation in ships is a process substitute dirty air in a hold of ship with fresh air from outside. If meansfor keep air in compartment always clean or fresh to make people comfort and to limit influence destructionpart of ship also rattenness of cargo that caused by too high dampness of the air.Ventilation system in ships differences two kind, that are natural ventilation system and mechanicalventilation system.Natural ventilation principles uses movement or flow of natural air, for example there are wind or air flowthat caused by symptom of air rising because temperature different. Where as on mechanical ventilationsystem the principles same with natural ventilation system, but air movement helped by ventilator oranother similar tools that rotation in the tube.

Analisis Desain Sistem Pembangkit Listrik Tenaga Surya Kapasitas 50 WP Ramadhan, Anwar Ilmar; Diniardi, Ery; Mukti, Sony Hari
TEKNIK Vol 37, No 2 (2016): (Desember 2016)
Publisher : Diponegoro University

Kebutuhan akan listrik baik untuk kalangan industri, perkantoran, maupun masyarakat umum dan perorangan sangat meningkat. Tetapi, peningkatan kebutuhan listrik ini tidak diiringi oleh penambahan pasokan listrik. Berdasarkan permasalahan tersebut, energi surya dipilih sebagai energi alternatif untuk menghasilkan energi listrik. Alat yang digunakan disini adalah sel surya, karena dapat mengkonversikan langsung radiasi sinar matahari menjadi energi listrik (proses photovoltaic). Agar energi surya dapat digunakan pada malam hari, maka pada siang hari energi listrik yang dihasilkan disimpan terlebih dahulu ke baterai yang dikontrol oleh regulator. Keluaran regulator langsung dihubungkan dengan inverter dari arus DC ke AC. Hasil pengujian modul surya (photovoltaic) terlihat bahwa hasil daya keluaran rata-rata mencapai 38,24 Watt,dan arus yang didapatkan sebesar 2,49 A (Ampere). Hal ini dikarenakan photovoltaic saat mengikuti arah pergerakan matahari akan selalu memposisikan photovoltaic untuk tetap menghadap matahari sehingga tetap akan dapat menangkap pancaran matahari secara maksimal.Â [Title: Design Analysis of System Power Solar Cells Capacity of 50 Wp] The need for electricity is good for the industry, offices, and public and individuals are greatly increased. However, the increase in demand for electricity is not accompanied by the additional power supply. Based on these problems, chosen solar energy as an alternative energy to generate electric power. A tool that is used here is the solar cell because it can directly convert solar radiation into electrical energy (photovoltaic process). So that solar energy can be used at night, then during the day, the electrical energy generated is stored before a battery which is controlled by the regulator. Regulator output is directly connected to the inverter from the DC to AC. The test results of solar modules (photovoltaic) indicated that the results of the average power output reached 38.24 Watt, and the currents were 2.49 A. This is because the photovoltaic follows the direction of movement of the sun and always located at the photovoltaic to remain facing the sun. Therefore, it will stillÂ be able to capture the radiant sun to the fullest.

STUDI GEOKIMIA FLUIDA PANASBUMI DAERAH PROSPEK PANASBUMI NGLIMUT, G. UNGARAN KECAMATAN LIMBANGAN, KABUPATEN KENDAL JAWA TENGAH Brahmo Emianto, Yohanes; Aribowo, Yoga
TEKNIK Volume 32, Nomor 3, Tahun 2011
Publisher : Diponegoro University

Fluid geochemistry is a useful method to analyse lateral and vertical processes and trends in a geothermalsystem, just like a blood and urine analysis to determine the functions of internal organs in human body. Fluidsgeochemistry study in Nglimut Geothermal Prospect has conducted to get information about type andcharacteristics of fluids, to predict reservoir temperature, and sub surface hidrogeochemical cycle model.From fluids geochemistry analysis, the most significant constituent is HCO3, and thus all fluids classified intobicarbonate water. Based on gethermometry analysis, the average reservoir temperature calculated is about206oC and classified into high enthalpy system

PENGARUH TEMPERATUR SOLAR TERHADAP PERFORMA MESIN DIESEL DIRECK INJECTION PUTARAN KONSTAN Murni, Murni
TEKNIK Volume 33, Nomor 1, Tahun 2012
Publisher : Diponegoro University

The imperfect combustion process will be a problem in the development effort of diesel engineâ€™s performance.Nonhomogen airâ€“fuel mixing process is one of the factors which cause the imperfect combustion.By heating upthe diesel solar up to a certain temperature before it goes through the high pressure injection pump will lowerits density and viscosity. Therefore, when injected in the combustion chamber, it will formed smaller droplets offuel spray which result in a more homogenious airâ€“fuel mixture. Also by using higher temperature will make thediesel fuel easier to ignite in order to compensate the limited time which is available in high speed operatingconditions. Diesel engine Dong Feng 1 cylinder direct injection at constant speed was used in this research. Thefuel used are solar with temperature variations in the range from 30oC to 70oC . The best thermal efficiency forsolar fuel is 30 % at 60oC with 28 % BSFC. In this condition, the fuel consumption was decreased 4 % bycomparing with that at 30oC.

Rancang Desain Produk Setrika Pegas Menggunakan Metode Kano Nurjannah, Anisa; Purnomo, Hari
TEKNIK Vol 39, No 1 (2018): (July 2018)
Publisher : Diponegoro University

Penelitian ini mendesain produk setrika listrik dengan fitur-fitur yang sesuai dengan keinginan dan kepuasan penggunanya. Untuk mengetahui fitur-fitur yang diinginkan oleh pengguna, dilakukan wawancara tentang tanggapan dan usulan desain setrika sebagai perbaikan dari produk setrika listrik yang telah beredar di pasaran. Output dari tahapan ini adalah Voice of Customer. Setelah diperoleh voice of customer, maka dicari tingkat kepentingan tiap fitur tersebut menggunakan metode KANO. Dari pengolahan dengan metode KANO diperoleh 6 fitur dengan tingkat kepuasan attractive dan one-dimentional yang sangat perlu untuk dikembangkan, yaitu fitur ringan, gagang nyaman dipegang, tahan lama, ringan, kesesuaian warna, serta hemat listrik. Fitur keamanan berfokus pada alas setrika/konduktor yang dibuat dengan sistem yang dapat digerakkan naik turun dengan menggunakan pegas, sehingga bagian panas setrika hanya dapat keluar dari kerangka luar jika mendapat tekanan dari penggunanya. Dengan sistem ini, setrika menjadi lebih aman untuk digunakan. Fitur gagang nyaman digenggam dibuat dengan memanfaatkan aspek ergonomi. Fitur tahan lama dan ringan ditentukan dari material yang digunakan, yaitu ebonit sebagai kerangka luar dan aluminium sebagai konduktor alas setrika. Kesesuaian warna pada setrika dipilih dengan warna yang tidak terlalu mencolok serta memenuhi aspek psikologis manusia. Untuk menghemat listrik, digunakan pengontrol suhu/panas, sehingga dapat disesuaikan dengan kebutuhan pengguna.

PERMASALAHAN AIRTANAH PADA DAERAH URBAN Triadi Putranto, Thomas; Indra Kusuma, Kristi
TEKNIK Volume 30, Nomor 1, Tahun 2009
Publisher : Diponegoro University

Groundwater is one of water resources that can be exploitated to supply human being basic need becauseof its quality and quantity. Groundwater overexploitation can give negative impact to environmentalequilibrium. Human activities such as groundwater overexploitation, civilization problems, coastreclamation and industrial area developments can give groundwater problems in urban area. Groundwaterproblems that can be happened such as surface flooding, sea water intrusion, land subsidence andgroundwater pollution as the impact of human activities. Mitigations that can be conducted to minimizenegative impact of groundwater overexploitation are by technical and nontechnical programs

PENGARUH KONSEP POLA GRID TERHADAP KEMAMPUAN JANGKAUAN LANSIA DI KELURAHAN KROBOKAN Pratiwi, Busada Eka Kristi; Suprapti, Atiek; Murtini, Titien Woro
TEKNIK Volume 34, Nomor 2, Tahun 2013
Publisher : Diponegoro University

Elderly is people who aged 60 years and older and generaly has decreased physical and psychological. Thenumber of elderly in Kelurahan Krobokan has reached 8.9%, its means that the region can be said to havean old structure. Elderly in Kelurahan Krobokan can still use their environment can still use theirenvironment to get to a certain social facilities to meet their needs. Existing spatial pattern in the district isusing a grid that has a lot of intersections. The purpose of this study was to determine the physical aspects ofthe elements forming a regular grid patterns that exist in the area of research, so as to affect the nonphysicalaspects of the ability range of the elderly.Research methods that will be used is a qualitative method rationalistic. Where the assessment is used toform a grand theory of concept consisting of the variables that will be connected. Then the data analysisstarts from reviewing and systematics of data that has been obtained by grouping data into variables thathave been previously determined. The group is then presented in the form of maps, patterns, percentages andnarrative text. The data that has been arranged, then made a conclusion and interpretation.An analysis found that the grid pattern affect the ability of elderly to use their environment. The positiveinfluence that can reach the elderly Kelurahan Krobokan social facilities they want them to go the distanceeven beyond their ability.

PERBAIKAN MUTU PRODUK GENTENG MELALUI PERBAIKAN BAHAN BAKU (Studi Kasus Di Perusahaan Genteng UD.Tanah Mas Jepara) Adi W, Purnawan; Purwanggono, Bambang; Shodikin, Ali
TEKNIK Volume 29, Nomor 1, Tahun 2008
Publisher : Diponegoro University

By there is complaint from a part of customer of Jepara roof tile user this time, that is about the product ofless good Jepara roof tile, like the roof tile is mossy easily, fragile, leaky, low compressive strength or it isbroken when it is trampling, the case is back grounded by the raw material and technology are not advanceyet and also process of making roof tile is less perfect.By neglecting available process and technology, the writers try to improve the quality product of Jepara rooftile through the improvement of raw material. By adding the sand to the raw material with composition ofweight comparison 10:1, 5:1, 3:1 (clay : sand) and make an experiment directly by definite plasticity, dryand fire shrinkage, compressive strength, porosity and with analysis of variable cost calculation, so it can beconcluded that by adding sand to the raw material with weight comparison 5:1 (clay : sand), it is provenmost exactly in improve or increase the quality product of Jepara roof tile.

Page 28 of 53 | Total Record : 522

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