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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.

Arjuna Subject : -

Articles 522 Documents

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KRITIK TERHADAP PENYEDIAAN RUANG BAGI WANITA DALAM PERUMAHAN REAL-ESTATE Bharoto, Bharoto
TEKNIK Volume 29, Nomor 2, Tahun 2008
Publisher : Diponegoro University

One of gender issues in architecture is domesticity, space in a home. According to feminist perspectivehome spatial design must be consider womenâ€™s spatial use for housework activities. Preliminaryresearch shows that mothers of a household tend to use kitchen, living room, and master bedroom intheir everyday activities so there must be connectedness appearance among those spaces. In fact, homedesign in Indonesia pays less attention to it. This research aimed to find out how far real-estatedeveloper accommodates the womenâ€™s spatial use for housework activities on their products. Data isobtained from 81 real estate advertisements on newspaper. The data is treated by content analysis tofind the offering items on the advertisement. The result show that 19% real- estate developers use facilityof housing and environment as superiority on their products and only 3.5% of them use householdspatial needs. It can be concluded that home design in Indonesia pay less attention to womenâ€™s spatialuse for housework activities

PENGARUH ALIH FUNGSI BANGUNAN CAGAR BUDAYA LAWANG SEWU SEMARANG DALAM PERSEPSI MASYARAKAT UNTUK MEWUJUDKAN TUJUAN REVITALISASI Maryati, Iin; Rukayah, Siti; Sudarwanto, Budi
TEKNIK Vol 36, No 1 (2015): (Juli 2015)
Publisher : Diponegoro University

Penelitian ini dilatarbelakangi karena Lawang Sewu merupakan salah satu bangunan cagar budaya di Kota Semarang yang layak untuk direvitalisasi dalam upaya melestarikannya dan agar tetap fungsional. Telah banyak berbagai usulan alih fungsi Lawang Sewu, diantaranya adalah menjadi hotel, pusat perbelanjaan dan menjadi perkantoran. Pada tahun 2009 diputuskan untuk direvitalisasi menjadi galeri, temporary exhibition room dan menjadi objek wisata heritage. Kemudian dari hal-hal tersebut muncul sebuah tujuan penelitian yaitu mengetahui adanya pengaruh alih fungsi menjadi temporary exhibition room, gallery, dan tetap menjadi objek wisata heritage dalam persepsi masyarakat untuk mewujudkan tujuan revitalisasi. Metode penelitian yang digunakan adalah kuantitatif rasionalistik. Melakukan pengumpulan data salah satunya menggunakan kuesioner yang disebar pada responden. Kemudian diuji menggunakan beberapa langkah uji statistik, salah satunya dengan uji path analysis yang digunakan untuk melihat ada tidaknya pengaruh alih fungsi sebagai variabel mediator dalam persepsi masyarakat untuk mewujudkan tujuan revitalisasi. Pemaknaan hasil temuan menunjukan adanya pengaruh alih fungsi dalam persepsi masyarakat untuk mewujudkan tujuan revitalisasi yang dijelaskan berdasarkan teori yang telah dipaparkan dalam kajian pustaka serta kondisi di lapangan. Kesimpulan yang dapat diperoleh dengan adanya pengaruh alih fungsi dalam persepsi masyarakat untuk mewujudkan tujuan revitalisasi adalah aspek-aspek alih fungsi harus diperhatikan dengan serius bagi berbagai pihak yang akan melakukan kegiatan revitalisasi.[The Influences of Revitalization Heritage Building Lawang Sewu Semarang in Public Opinion to Realize Revitalization Purpose] Lawang Sewu is one of heritage building in Semarang which suitable to have a conservation, especially revitalization to keep the existency of the building. There are a lot of opinions to revitalize Lawang Sewu. Between 2004-2006 this site is going to be used as a hotel, shopping center and full office. Finally in 2009 there was a conclution that Lawang Sewu would be revitalized into gallery, temporary exhibition room and heritage tourist destination. One of the purpose of revitalization is the type of function could give benefits for public, and the heritage building doesnâ€™t become an exclusive place. So the new function that selected has to be a support for the revitalization purpose (Priatmojo, 2009). Thats all the background of this research.The research method that be used is quantitative method. From collecting dataâ€™s and using questionnaire for the respondences. The next step is testing those dataâ€™s with several test which one of them is path analysis or called Sobel test. Path analysis is an analytic system to see whether the influence of the new function in a heritage building exist as a mediator variable in public opinion to realize revitalization purpose.The result shows that there is influences of a new function in public opinion to realize revitalization purpose. It is explained and based the theory which has been explained in review of the literature and the real situation. It comes to the conclusion that influences is the aspect which need to be taken seriously by who does the revitalization.

KAJIAN ASPEK HUKUM INTERNASIONAL PADA KASUS TUMPAHAN MINYAK KAPAL TANKER EXXON VALDES Ariany, Zulfaidah
TEKNIK Volume 32, Nomor 1, Tahun 2011
Publisher : Diponegoro University

The ships operation can occur a lot of possibilities accidents which caused a fatal accident, affect to the damagethe cargo and crew, and also on the environment that may affect to the industry and coastal beaches, and thecontinuity of living things around it. This paper tried to make the consideration that always vigilant andanticipated the occurrence of ships accidents at seas. Tanker Vessel Exxon Valdes cause huge losses in history,so the author interested to discuss in the light of international legal studies. At the end of this paper weâ€™ll belearned the engaged the shipping and their best frame works, the society, and the nation, especially for the State

PEMANFAATAN ECENG GONDOK (EICHHORNIA CRASSIPES (MART.) SOLMS.) DALAM PENYISIHAN LOGAM BERAT CHROM (CR) PADA LIMBAH ELEKTROPLATING Sumiyati, Sri; Hadiwidodo, Mochtar
TEKNIK Volume 28, Nomor 1, Tahun 2007
Publisher : Diponegoro University

Effluent that is produce by the electroplating industry, especially nickel chrome plating, contains chromemetal that is carcinogenic. The toxicities from chrome are caused by its ability to dissolve and itâ€™s mobilityin the environment. An alternative treatment to reduce chrome is called fitoremediasi which uses plants asits indicator; in this case we use water hyacinth.At the preface experiment, we tried to plant mature water hyacinth in electroplating waste. First we tried toplant in 100% waste water in witch we repeated it 3 times. At the 3rd week; day 18; the plants becameyellowish and became wilted. Knowing this fact, we applied the time for our experiment the we were goingto executed, with assuming at the 18th day the plants will become wilted as an indicator that the waterhyacinth are saturated in adsorbing chrome as the heavy metal pollutant. This became the parameter indesigning the time treatment for the plant zone, 4 until 15 days.The treatment was done by making variation in the amount of plants that are planted, which was 0 plants(as the control), 1 plant, 2 plants, 3 plants, and 4 plants; with 3 times repeating at each stage. The result ofthis experiment after 18 days shows the chrome concentration and the efficiently in decreasing theconcentration on each stage. The highest efficiently for each plant was the treatment by 1 plant only. Thehighest efficiently in decreasing the concentration was 78,95% ad it was done by the treatment with 4plants. To get chrom concentration which is fill with the standard, we can add more water hyacinth into thewaste with the balance equivalent or we need the lower beginning concentration.

PENYELIDIKAN OPERASI PINTU INTAKE EMBUNG SAMIRAN DENGAN UJI MODEL HIDROLIK Kurniani, Dwi; Kirno, Kirno
TEKNIK Volume 31, Nomor 1, Tahun 2010
Publisher : Diponegoro University

A manual of intake gate operation for embung is an important tool it depends. One factor which is decidingthe manual is operation of gate system. If the system of gate operation of intake gate are wrong will havenegative water use . To make the most precise of manual operation of intake gate embung Samiran must beendone physical model test. From this test result of physical model test can be used as a guidance or referenceprototype application.

LIKUIFASI ENZIMATIK Î² - KAROTEN SEBAGAI FUNCTIONAL FOOD YANG TERDAPAT DALAM POMACE DARI BUAH LABU KUNING Herry, Santosa; Heny, Kusumayanti
TEKNIK Volume 33, Nomor 2, Tahun 2012
Publisher : Diponegoro University

Attempts to separate the Î² carotene contained in pomace or pulp byproduct pumpkin fruit juicing process(Cucurbitae moschata) is potential. The magnitude of benefit of Î²-carotene as a chemo preventive, high contentof Î²-carotene in pumpkin, strong pumpkin fruit shelf life and high content of Î²-carotene in the pomace, an initialconsideration of this research. Î²-Carotene enzmatik liquefaction using pectinase enzyme combination (P) andcellulose (C), subject to the pomace. liquefaction / hydrolysis carried out in a stirred tank reactor to determine:the most influential variable ratio between enzyme ratio P: C; temperature and pH. Influential process variableswas determined using two-level factorial design method Quicker. From the experimental results of the data if itis known that the degree of acidity of pH is the single most influential variable in the process of Î²-caroteneliquefaction presents in pumpkin fruit pomace.

Sintesis dan Karakterisasi ZnO sebagai Coating Antikorosi ZnO/Al(OH)3 Pada Material Baja Karbon Setiawan, Adhi
TEKNIK Vol 39, No 1 (2018): (July 2018)
Publisher : Diponegoro University

ZnO seringkali digunakan sebagai aplikasi pigmen anti korosi pada logam karena tidak beracun, ramah lingkungan, murah serta memiliki ketahanan korosi yang relatif baik. Partikel ZnO dalam penelitian ini disintesis dengan menggunakan metode presipitasi dengan ZnCl2 dan NaOH sebagai prekursor. Partikel ZnO yang dihasilkan dengan metode tersebut memiliki morfologi berbentuk batang dengan ujung lancip. Hasil SEM menunjukkan bahwa semakin rendah konsentrasi NaOH maka ukuran partikel ZnO yang dihasilkan akan semakin kecil. Pada konsentrasi NaOH sebesar 0,5 M dihasilkan ZnO dengan ukuran terkecil sebesar 123 nm. Hasil XRD menunjukkan bahwa ZnO memiliki kristalinitas tinggi dengan ukuran kristal mencapai 47 nm pada konsentrasi NaOH sebesar 0,5 M. Penggunaan pigmen ZnO/Al(OH)3 menunjukkan ketahanan korosi yang baik pada larutan NaCl 3,5% dengan specimen baja karbon. Hasil penelitian menunjukkan bahwa pada komposisi ZnO/Al(OH)3 sebesar 1:3 memiliki ketahanan korosi yang terbaik karena memberikan nilai laju korosi terendah yaitu sebesar 0,86 mpy.

PEMBUATAN PUPUK FOSFAT DARI BATUAN FOSFAT ALAM SECARA ACIDULASI Setia Budi, Faleh; Purbasari, Aprilina
TEKNIK Volume 30, Nomor 2, Tahun 2009
Publisher : Diponegoro University

Phosphate rock containing P2O5 can be used as raw material of phosphate fertilizer. Phosphate rock canbe found in many areas in Indonesia, but its P2O5-content is relative low. In this research, phosphate rockfrom Rembang (P2O5-content 11.37%) is used as raw material for phosphate fertilizer production byacidulation process using phosphoric acid solution. Operation variables are phosphoric acid concentration(10, 20, 30, 40 %-vol), spraying model of phosphoric acid solution (one hole and many holes), andspraying position of phosphoric acid solution (end, centre, end & centre). The result shows that theincrease of phosphoric acid concentration is proportional to P2O5-content in phosphate fertilizer withhighest P2O5-content in the amount of 18.29%. One-hole spraying model and end-position spraying giveshighest phosphate fertilizer yield in amount of 169.5 grams.

KAJIAN PEMANFAATAN DEM SRTM & GOOGLE EARTH UNTUK PARAMETER PENILAIAN POTENSI KERUGIAN EKONOMI AKIBAT BANJIR ROB L Nugraha, Arief; Haniâ€™ah, Haniâ€™ah
TEKNIK Volume 34, Nomor 3, Tahun 2013
Publisher : Diponegoro University

Tidal flood is a significant threat for the economic growth rate in the city of Semarang. The threat mitigation requires planning, thereby reducing the impact of the losses. The availability of global data with free access can provide solutions in disaster management, the data are SRTM DEM and Google Earth. With both of these data can be mapped potential economic losses caused by tidal flooding. With the techniques of remote sensing and GIS to handle the SRTM DEM data and Google Earth, the techniques can be generated maps and models of tidal inundation area maps woke up in the city of Semarang. Analysis of potential economic losses can be calculated by doing an overlay of the two maps generated. The results achieved from this study is SRTM DEM and Google Earth can able to produce thematic maps of situational tidal flood disaster so that it can be used as a parameter value calculation of the potential economic losses. This study also obtain the result that the area of â€‹â€‹land affected by the tidal flood an area of â€‹â€‹8339.31 hectares and the number of buildings reaching 78 299 pieces, which the district that has the highest impact on the tidal flood that North Semarang.

Pemodelan Peningkatan Kualitas Air Sungai melalui Variasi Debit Suplesi Rezagama, Arya; Sarminingsih, Anik; Rahmadani, Ajeng Yasinta; Aini, Afifah Nadya
TEKNIK Vol 40, No. 2 (2019): Agustus 2019
Publisher : Diponegoro University

Kualitas air sungai sangat dipengaruhi oleh besarnya debit yang mengalir serta kondisi kualitas air pada kawasan hulu. Sungai Pepe merupakan saluran penggelontor kota Surakarta yang diharapkan dapat difungsikan menjadi area wisata. Namun kualitas air Sungai tersebut termasuk dalam golongan IV atau tidak sesuai dengan peruntukannya. Limbah domestik dan industri UKM yang masuk ke sungai serta rendahnya baseflow sungai menjadi penyebabnya. Penelitian ini bertujuan untuk memodelkan kualitas air Sungai Pepe dengan melakukan variasi suplesi debit dari Sungai Anyar sehingga kualitas air Sungai Pepe menjadi lebih baik. Simulasi dilakukan dengan menggunakan model Qual2Kw. Pengukuran kualitas air eksisting dilakukan pada 6 titik pengambilan sampel. Variasi debit suplesi yang digunakan meliputi kondisi eksisting, suplesi 0,5 m3/s dan 1 m3/s. Debit suplesi ke Sungai Pepe Hilir dapat di atur melalui pintu air di Sungai Anyar. Hasil penelitian menunjukkan bahwa kualitas air secara umum menjadi lebih baik sepanjang ruas sungai. Parameter DO dan COD membaik menunjukkan kemampuan areasi yang membaik akibat hidrodinamika aliran sungai. Adanya pencampuran limbah tekstil pada anak sungai masih menjadi parameter yang dominan dalam penurunan kualitas air sungai.

Page 13 of 53 | Total Record : 522

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