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Info-Teknik
Published by Universitas Lambung Mangkurat
ISSN : 08532508     EISSN : 24599964     DOI : http://dx.doi.org/10.20527
Core Subject : Engineering,
Engineering
Jurnal Info – Teknik menerbitkan artikel – artikel karya orisinil dan signifikan pada Bidang Rekayasa Teknik.
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 425 Documents
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EFEKTIFITAS DAN EFISIENSI PENERAPAN SISTEM MANAJEMEN KONSTRUKSI DALAM PROSES PEMBANGUNAN INDUSTRI KONSTRUKSI Yuslan Irianie
INFO-TEKNIK Vol 12, No 2 (2011): INFOTEKNIK VOL. 12 NO. 2 2011
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/infotek.v12i2.1809

Abstract

Manajemen Konstruksi merupakan alternatif pola/sistem teknik pengelolaan dalam proses pembangunan industri konstruksi yang memadukan tahap-tahap proses pembangunan menjadi satu kesatuan/keterpaduan. Efektifitas penerapan sistem manajemen konstruksi dalam proses pembangunan dapat mengoptimalisasikan pengelolaan dan pengendalian baik ditinjau dari aspek biaya, waktu maupun kualitas dalam mencapai tujuan/target yang telah ditentukan. Penulisan ini mencoba mengkaji/menelaah sejauhmana efektifitas dan efisiensi penerapan sistem manajemen konstruksi dalam proses pembangunan industri konstruksi dan memberikan gambaran-gambaran tentang manfaat dan optimasi yang didapat dalam penerapannya ditinjau terhadap aspek biaya dan waktu. Peranan manajemen konstruksi dimulai sejak tahap perancangan sampai sesudah tahap pelaksanaan sehingga tahap pelaksanaan (construction) dapat dimulai lebih awal walaupun tahap perencanaan (design) belum selesai (overlap), sehingga  waktu penyelesaian proyek konstruksi lebih pendek/cepat jika dibandingkan dengan sistem konvensional/tradisional, dimana dengan penerapan sistem manajemen konstruksi didapat penghematan waktu proses pembangunan sebesar batasan alokasi waktu tahap pelaksanaan (construction). Terhadap aspek biaya dimana penerapan sistem manajemen konstruksi jika dibandingkan dengan sistem kontraktor utama didapat penghematan biaya pembangunan ditinjau terhadap biaya pengelolaan, pajak dan profit-profit jasa konstruksi. Dimana pada sistem kontraktor utama : investasi riel = 100 % - 42,50 % = 57,50 % ; sedangkan pada sistem manajemen konstruksi : investasi riel = 100 % - 26 % =             74 % , sehingga didapat keuntungan secara teoritis dengan sistem manajemen konstruksi =  74 % - 57,50 % = 16,50 % dari biaya proyek.
Problematika Pembangunan Infrastuktur pada Tanah Lempung Lunak dan Alternatif Metoda Penanganannya Wahyu P. Kuswanda
INFO-TEKNIK 2015: Prosiding Semnas Teknik Sipil 2015
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/infotek.v0i0.3037

Abstract

Problema utama pembangunan infrastruktur pada tanah lempung lunak adalah daya dukung tanah dasarnya yangrelatif rendah dan pemampatan tanah dasarnya yang relatif besar serta berlangsung relatif lama. Apabila tanpadilakukan perbaikan pada tanah dasarnya terlebih dahulu maka infrastruktur yang dibangun berpotensi akanmengalami kerusakan sebelum mencapai umur yang direncanakan. Untuk menangani problema tersebut diantarabeberapa alternatif yang bisa dilakukan adalah melakukan perbaikan tanah dasar dengan metoda preloading denganpenggunaan prefabricated vertical drain dan metoda vacuum consolidation.
ANALISIS PERUBAHAN SUHU PEMANASAN PADA STAINLESS STEELS 304 Gumono Gumono; R. N. Akhsanu Takwim; Sugeng Hadi
INFO-TEKNIK Vol 18, No 1 (2017): INFOTEKNIK Vol. 18 No. 1 2017
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/infotek.v18i1.3887

Abstract

Stainless steels are widely used for household purposes, such as spoons, forks and knives that serve as cutting tools are currently widely used. Based on the micron structure this metal is grouped into austenitic, ferritic, martensitic, duplex and prepication hardening. The purpose of writing determines the optimum hardness value of stainless steel 304 after getting treatment with nitrogen media. Gets optimum hardness when using nitric acid media. At what temperature and what type of cooling is used to obtain optimum hardness. Research method by comparing stainless steel before and after experiencing heat treatment process by using nitrogen cooling medium and nitric acid. Hardness testing using rockwell method. Optimum hardness results occur at 400 °C with 20.33HRc nitrogen cooling medium and 500 °C of nitric acidic acid 19,67HRc
ANALISA TEBAL PERKERASAN LENTUR DENGAN METODE SNI 1989 DAN METODE NCSA (NATIONAL CRUSHED ASSOCIATION DESIGN) PADA RUAS JALAN PENDIDIKAN KABUPATEN BALANGAN. Rosehan Anwar
INFO-TEKNIK Vol 13, No 2 (2012): INFOTEKNIK VOL. 13 NO. 2 2012
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/infotek.v13i2.1834

Abstract

Along with the development of a more advanced civilization, then the existence of an adequate road transportation is preferred. To support this Balangan county government make policy / program that is handling the construction and improvement of roads, routine and periodic maintenance. The policy is to achieve a smooth road services, safe and comfortable. So that development activities in the area there is no constraint. Way to memenuhu smoothness, safety and comfort requirements would have a thickness of the layers according to the circumstances existing subgrade. On that basis then, in the final writing, the author raised the title of Flexible Pavement Thickness Analysis Methods With ISO 1989 And Methods NCSA (National Crushed Association Design) At Toll Road District Education Balangan.The purpose of the writer was to determine thick flexible pavement with ISO 1989 method and the method of NCSA (National Crushed Association Design). Based on secondary data using the ISO 1989 obtained the results of calculations for the surface layer lataston HRS-WC with 3 cm thick HRS-BASE 4 cm thick, the base layer of crushed stone class A with 20 cm thick, and a layer of crushed stone foundation below grade B with a thickness of 10 cm. With the NCSA method to get a thick layer with a thick surface layer lataston 5 cm, the base layer of crushed stone class A 10 cm thick layer of crushed stone foundation under class B with a thickness of 25 cm.Of the two methods above can be known methods NCSA at the surface layer and the base layer is thinner, but to the method NCSA foundation layer 15 cm thicker than the method of ISO 1989.
OPTIMASI PERANCANGAN ALAT PENGERING IKAN AIR TAWAR KAPASITAS 50 KG MEMANFAATKAN TENAGA SURYA DAN BIOMASA Rendi Rendi
INFO-TEKNIK Vol 17, No 1 (2016): INFOTEKNIK Vol. 17 No. 1 2016
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/infotek.v17i1.1267

Abstract

Kandangan city is one of the largest in the region banjarmasin dried fish, dried fish Processing in Kandangan city still quite traditional, namely only with drying fish under direct solar heat that has some shortcomings such as: a long time, need some time reversal process and less hygienic. To increase the productivity of fish farmers ate fish drier is planned sourced from solar power and biomass.The method used in this study is that the first field surveys, collect data of temperature, humidity and solar radiation in the area of research. Second, collect data levels of fish that have not been drained and dried. The field survey will be a design parameter.Based on calculations performed empirically obtained: design the most optimal solar collector is designed with a slope of 10°, 8,236 m2 collector area, drying air velocity of 1,9 m / s, 1,7 m width of the drying chamber and drying chamber area of 2,89 m2. APK most optimal design that is designed with a tube diameter of 0,028 m 0,7 m long tube tube 60° and Pr Structure 1,5 number of tube 35 and a shell diameter of 0,27 m.
Menentukan Nilai Satuan Mobil Penumpang Kendaraan Di Kotamadya Banjarmasin Rosehan Anwar
INFO-TEKNIK Vol 1, No 1 (2000): INFOTEKNIK VOL. 1 NO. 1 2000
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/infotek.v1i1.400

Abstract

Nilai satuan mobil penumpang dari kendaraan diperlukan untuk menjumlah beberapa jenis kendaraan yang berbeda dan dapat digunakan pada perhitungan antara lain : kapasitas jalan dan tebal perkerasan. Kendaraan dari masing-masing daerah mempunyai sifat yang khas nilai SMP. Kendaraan yang diteliti adalah kendaraan sepeda motor dan kendaraan angkutan kota (angkot) Oleh sebab  itu dilakukan penelitian dengan judul :” MENENTUKAN NILAI SATUAN MOBIL PENUMPANG KENDARAAN DI KOTAMADYA BANJARMASIN”.Pada penelitian ini analisa perhitungan SMP menggunakan metode Headway. Dari perhitunan didapatkan nilai SMP sepeda motor = 0,6084 dan nilai SMP angkot = 1,0774. Nilai-nilai ini tidak sama dengan nilai SMP yang tercantum pada IHCM 92.
ANALISIS UNJUK KERJA VENTURI VAKUM DENGAN VARIASI DIMENSI DAN VISKOSITAS FLUIDA R.N. Akhsanu Takwim; Kris Witono
INFO-TEKNIK Vol 19, No 1 (2018): INFOTEKNIK Vol. 19 No. 1 Juli 2018
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/infotek.v19i1.5142

Abstract

In the venturi vacuum, to produce a vacuum condition, a liquid fluid flow is required which is driven by a centrifugal pump through the venturi passage. The amount of vacuum pressure generated by venturi is influenced by the increase of flow velocity due to the diminution of the cross-section which follow Bernoulli principle. The flow velocity on the channel is influenced by the discharge generated by the pump following the continuity law. In addition to speed, channel input pressure is also a variable that affects venturi vacuum pressure. Performance of a setrifugal pump in the form of flow and pressure discharge greatly affect venturi vacuum performance, so that the variables affecting the performance of a setrifugal pump such as fluid viscosity, will also affect the venturi vacuum performance. Therefore, it is necessary to evaluate the effect of viscosity and venturi dimension on vacuum pressure and discharge into the main objective of this study so that the variables can improve the venturi vacuum pump performance. In this study liquid fluid with three variations of viscosity flowed through three different venturi dimension variations. Then measured parameters that occur, such as fluid flow fluid flow, fluid pressure fluid and vacuum pressure that occurs in the tube. From this study obtained, at the angle of diffuser 5o the lowest vacuum pressure of - 66.75 cmHg occurs in water fluid with viscosity of 17 centipoise. Similarly, at the angle of the diffuser 6.5o the value of the lowest vacuum pressure is also produced by a water fluid of -68 cmHg which is the lowest value compared to other diffuser angles and other fluid viscosities. While at 8o diffuser angle, the lowest vacuum pressure value is also produced by water fluid of -64.5 cmHg.
Kinetika Fouling Membran Ultrafiltrasi (UF) Pada Pengolahan Air Berwarna: Pengaruh Interval dan Lamanya Pencucian Balik (Backwashing) Membran Mahmud Mahmud
INFO-TEKNIK Vol 6, No 1 (2005): INFOTEKNIK VOL. 6 NO. 1 2005
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/infotek.v6i1.1674

Abstract

One of the most common problems encountered in water treatment application of membranes is fouling by natural organic matter. Peat water as surface water has large of natural organic matter in various molecular weights, and the big component is small molecular weight. The laboratory-scale ultra filtration (UF) experiments were conducted to determine the effect interval and duration of backwashing membrane to happened fouling membrane for removing organic matter and colour of peat water. The ultra filtration membranes used in this research are made of plymeric cellulose acetate 13%, dimethylformamide 36% and acetone 51%. Membranes are prepared by applying method of phase inversion. Time interval for backwashing with aquadest is 1 and 5 hours with pre coagulation and 1 hour for peat water without pre-treatment. The process performs similar of flux recovery 91,07% and 90,57%. In addition without pre-treatment, the 1 hour interval backwashing shows low level of recovery flux 55,64%.
PENERAPAN ALGORITMA DECISION TREE C4.5 UNTUK PENILAIAN RUMAH TINGGAL Budi Setiadi
INFO-TEKNIK Vol 16, No 2 (2015): INFOTEKNIK VOL. 16 NO. 2 2015
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/infotek.v16i2.203

Abstract

There is still a possibility of assessment error homes as a reference value of credit, which will open opportunities for NPL. So we need a way of assessment (predictive value) is quite proportional, credible and accurate. Inaccurate predictions led to the planning of improper credit management. Prediction value of collateral house has attracted the interest of many researchers because of its importance both in theoretical andempirical.Namely C4.5 decision tree algorithm, CART and CHAID that can be used for credit risk status. The third tree algorithm produces different models for the same data set. Therefore, this study aims to implement a C4.5 decision tree algorithm for the assessment of the residence. Evaluation results will be processing using precision and recall, and then compared and analyzed the results between assessors using other analysis methods (Naive Bayes, K-NN) with the results predicted by the method of classification algorithm C4.5. From here will look the accuracy of the implementation of C4.5. Keywords :  Classification Algorithm, Decision Tree, C4.5, Assessment
ANALISIS KESELAMATAN LALU-LINTAS JL.SOEKARNO HATTA BALIKPAPAN Maslina Maslina; Bima Dhevrando
INFO-TEKNIK Vol 20, No 1 (2019): INFOTEKNIK VOL. 20 NO. 1 JULI 2019
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/infotek.v20i1.6951

Abstract

Soekarno Hatta Road is one of the road shaft beetween Balikpapan and Samarinda which has 119 kilometres long. This road is province roads that had been through out or passed by with typical heavy and light vehicles which has high intensity accident level. This research is aimed to devise factor and characteristic of accidents along Sokearno Hatta roads from zero kilometres until 13th kilometres. This research begun with roads survey observation and secondary data collection including with roads accidents documents for the pass 3 years.( which is in years of 2015 – 2017). Data analysis prepared with calculating numbers of accidents using formula EAN (Equivalent Accidents Number) and UCL Method (Upper Control Limit) for determination area with high risk accidents (Black Spot). Anatomy Accidents Data Documents were enumerated to analyze in that specified area. That can be conclude that the numbers of accidents on Soekarno Hatta Street from zero kilometres until 13th kilometreswith EAN method i.g : more than 84 times bigger different from UCL value i.g: 43,3. Accidents that was happened in the mornings at weekdays Monday to Friday which were implicate 2 motorcycles and passenger in fifthteen till twenty years old students (boys).

Page 19 of 43 | Total Record : 425

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