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INTEK: Jurnal Penelitian

Intek
Website

Published by Politeknik Negeri Ujung Pandang

ISSN : 23390700 EISSN : 26155427 DOI : -

Core Subject : Science, Engineering,

Computer Science & IT Engineering

INTEK is a journal managed by the Journal and Publication Development Unit of Ujung Pandang State Polytechnic, which is published twice a year, in April and October. The journal INTEK has also been indexed. The INTEK Journal accepts research scripts in the fields of technology and engineering such as: Electrical, Mechanical, Civil and Chemical Engineering.

Arjuna Subject : Umum - Umum

Articles 11 Documents

1 2

Search results for , issue "Vol 4 No 2 (2017): Oktober 2017" : 11 Documents clear

Uji Daya Hambat Senyawa Xylitol dari Limbah Tongkol Jagung pada Bakteri Streptococcus Mutans Mahyati, Mahyati
INTEK: Jurnal Penelitian Vol 4 No 2 (2017): Oktober 2017
Publisher : Politeknik Negeri Ujung Pandang

Corncob contains xylan content of 12.4 - 12.9% which can be converted to xylitol [1]. Xylitol significantly reduces the population of Streptococcus mutans (S. mutans) in saliva compared with fluoride [3]. The effectiveness of xylitol from corn cobs waste is an antibacterial substance of S. mutans in safe and water-soluble mouthwash. The purpose of this research is to produce xylitol from corn cobs waste and to test the xylitol inhibition as anti bacterial in S. mutans bacteria. The xylitol extraction method of corncob using aqueous sulfuric acid is 0.25; 0.5; 0.75 and 1.0%. The extraction time was then varied from 15, 30, 45, 60, 75 and 90 min. The results showed xylitol compound from corn tuna waste was highest at 0.25% sulfuric acid concentration with 30 minutes hydrolysis time of 249.7 ppm and the lowest at 0.75% acid concentration and hydrolysis time of 90 minutes is 5.6 ppm. Xylitol compounds can be obtained from corn cobs waste has the value of inhibitory growth of S. Mutans bacteria in all variations of acid concentration (H2SO4) and hydrolysis time is 100%.

Kemampuan Asap Cair pada Pengawetan Ikan Bandeng Disertai Perendaman Prapengasapan dalam Larutan Mikrokapsul Oleoresin Daun Sirih Arifan, Fahmi; Wikanta, Deddy Kurniawan; Susanti, Margaretha Tuti
INTEK: Jurnal Penelitian Vol 4 No 2 (2017): Oktober 2017
Publisher : Politeknik Negeri Ujung Pandang

On this research have observed liquid smokeâ€™s ability to pursue microbe activity, antimicrobe and antioxidant compounds in betel oleoresin, give preservation effect by pursue microorganismâ€™s growth on Chanos-chanos forsk. Fish Submerge process by liquid smoke with betel oleoresin submerge on pre-smoking, give optimum result value of TVB 8,62 mg N/100gr, reach on submerge by betel oleoresin 6% concentration, during 15 minutes, and submerge with liquid smoke 4% concentration during 10 minutes. Value of total microbe 6,06 x 10 3 CFU. Result above has contribution with censor examination of rather hard texture and much liked flavor.

Peningkatan Produksi Pengrajin Batu Bata Melalui Perbaikan Proses Pencetakan Muhammad, Abdul Kadir; Arsyad, Muhammad; Anzarih, A.M.
INTEK: Jurnal Penelitian Vol 4 No 2 (2017): Oktober 2017
Publisher : Politeknik Negeri Ujung Pandang

The purpose of this study is to improve theproduction process of brick craftsmen. Brick production processconsists of four stages: printing, drying, burning, and cooling. Ofthe four stages, which will be completed in this research is theprocess of printing bricks. The printing process still uses simpleequipment that is a rectangular wooden beam with a size of 20cm x 10 cm x 5 cm. The printing process includes: preparation ofraw materials by hoeing the soil, making the dough by tramplingto the shape of a paste, printing using a printing tool. For thismethod, for 4 people craftsmen can print bricks as much as 2,000pieces / day (8 hours work / day). The number of bricks is idealfor once combustion of 40,000 pieces. For reach that amount ittakes 20 days. The method applied in improving the productionprocess of brick craftsmen is the application of brick machine.The operation of the brick printing machine requires 4 personswith their respective functions: 1 person to insert the soil into theprinting machine, 1 person to cut the brick bar, 1 person to movethe bricks from the printing machine, 1 person to bring thebricks to the drying place. Based on the result of the test, it isconcluded that by using the brick machine, the dough making iseasier and shorter, the production capacity increased to 6,780bricks / day, the time required for the production of 40,000 piecesof bricks is 6 days.

Sintesis dan Karakterisasi Biokeramik Tulang sebagai Bahan Implant dengan Metode Sintering Syamsuddin, Syamsuddin
INTEK: Jurnal Penelitian Vol 4 No 2 (2017): Oktober 2017
Publisher : Politeknik Negeri Ujung Pandang

Abstractâ€”An experimental study on the production of hydroxyapatite (HA = Ca10(PO4)6(OH)2) is conducted in this paper using sintering method. The experiment stars with cleaning process of bovine bone. The final products were characterized by X-Ray Diffraction (XRD), Fourier Transform Infrared (FTIR) and Atomic Absortion Spestroscopy (AAS). The obtained XRD spectra (HA synthesis) were compared to the JCPDS 09-0432 data andis and resulting a good enough result. It is also obtained that HA synthesis rasio Ca/P dengan AAS is 1.69.

Rancang Bangun Kursi Penderita Cereblal Palsy Arsyad, Muhammad; Anzarih, A.M.
INTEK: Jurnal Penelitian Vol 4 No 2 (2017): Oktober 2017
Publisher : Politeknik Negeri Ujung Pandang

The general goal of this research is to help provide a means to train the muscles of the sufferers Cerebral Palsy (CP). In especially, the objectives are: (1) Make a seat that has a function like easy stand, (2) Provide easy stand chair at a price affordable by people suffering from CP. Problems to be solved through applied product research activities are (1) how to make a chair that has functions such as easy stand, (2) how to provide easy chair seat with low price that can be reached by CP sufferer. To achieve these goals be done designing and making a chair similar to chair easy stand for people with CP. Stages of activities include designing, manufacturing components, assembling, testing and repair. Based on the test results, it is concluded that the celebral palsi chairs function well, including the components such as knee retention, peut holder, and table. The price of one CP chair is Rp 10 million.

Analisa Pengaruh Absorpsi Air Laut Terhadap Kekuatan Tarik Komposit Serat Pelepah Sawit Zulkifli, Zulkifli; Hermansyah, Hadi; Syahruddin, Syahruddin
INTEK: Jurnal Penelitian Vol 4 No 2 (2017): Oktober 2017
Publisher : Politeknik Negeri Ujung Pandang

This study aims to analyze the absorption of sea water on Composite Materials palm frond fibers per 24 hours for 9 days and analyze the effect of immersion for 3, 6, and 9 days of the tensile strength fiber-reinforced composite material of palm fronds. The polymers used type of epoxy resin. Palm frond fibers arranged randomly, then fiber treated alkali 5% for 2 hours, and then molded with a size of 200 x 200x 5 mm with a ratio between matrix and fiber is 90:10 to press molding tool. Composite plates immersed in a container filled with sea water aquarium for 3, 6, and 9 days and every 24 hours of material in weigh, test procedures seawater absorption refers to the ASTM D 570 - 98. As well as every 3, 6, and 9 days plate removed and cut into a polymer composite beam according to the standard ASTM D638-02 (type 1). Each variable will be tested for 3 times. Based on the test results get soaking in the absorption rate reached its peak in the first day, namely 0.26% for the first specimen testing three-day, 0.5% for the second specimen testing 6 days and 0.25% for the third specimen testing nine days. Then it will go on steadily and decreases until it reaches saturation point. Where for the first specimen in the third day of absorption of 0.49%, a second specimen in the sixth day of absorption of 1.71%, and the third specimen in the esembilan absorption 0.93%. And the influence of sea water immersion tensile strength fiber Composite palm fronds have a dynamic effect on the test results before immersion up to 9 days of immersion that is power up and down. With a value of 15.468 MPa before immersion, 17.046 MPa 3 days of immersion, 15.107 MPa 6 day immersion, and 21.137 MPa 9 days of immersion.

Rancang Bangun Alat Eliminasi Gas Buang Menggunakan Mekanisme Ejektor Saini, Makmur; Nur, Rusdi; Sattar, Sattar; Ibrahim, Ibrahim
INTEK: Jurnal Penelitian Vol 4 No 2 (2017): Oktober 2017
Publisher : Politeknik Negeri Ujung Pandang

Environmental pollution (pollutants) can be caused by natural events or human care through uncontrolled industrial and technological activities, this can be a threat to living things including humans in the future. This phenomenon is caused by the entry of particles or chemical substances that do not exist in the natural component so that it exceeds the amount that should be. Pollution is the inclusion of substances, energy and aliens into the environment so that the quality of the environment decreases and no longer suitable allocation. Efforts to reduce or control environmental pollution that some environmental scientists and practitioners have done in a better way by the structures produced by various industries and technologies that are seen as backbones. The research installation can provide detailed information about the shape and structure of the current in the pipe (analogized as the exhaust) in the direction and the vertical velocity to air will be inhaled by the fluid of the liquid (air) as motive fluid in the opposite direction. The suction strength of the liquid against the airflow is greatly determined by the vacuum pressure in the chamber because of the effect of the working ejector that is geometrically formed so that the image can be adjusted to that achievement. The parameters used to measure performance in the design of this air-contaminating air-conditioning installation plant are composed of several variables in the ratio of changes between air velocity and liquid flow in opposite directions, vacuum compressions are formed large enough, the fluid flow capacity of the ejector, revascular and the ability to transform gas pollutants into liquid pollutants.

Efektifitas Penurunan Kadar Kafein pada Teh Hitam dengan Metode Ekstraksi Iqbal Akbar Asfar, Andi Muhamad
INTEK: Jurnal Penelitian Vol 4 No 2 (2017): Oktober 2017
Publisher : Politeknik Negeri Ujung Pandang

Black tea is a tea that is currently the most widely consumed by the people of Indonesia. Consumption of black tea more than two cups per day can affect in human healthy because tea contains 20-90 mg of caffeine per cup, while the maximum consumption of caffeine is 150 mg per day and the maximum limit of caffeine is 0.02% in food and beverages. The method used in this study is the method of soxhlet extraction by varying the ethyl alcohol as solvent are 10%, 20%, 30%, 40%, and 50% with 2.5 hours extraction time. The initial caffeine content in black tea samples was 3.97%, after extraction decreased significantly levels of caffeine on 50% ethyl alcohol concentration is 0,0199%. The extraction method using Soxhlet technique is very effective to reduce caffeine in black tea.

Rekayasa Lalu Lintas Ruas Jalan Di Sekitar Terminal Kepuhsari Kabupaten Jombang Guna Meningkatkan Pendapatan Asli Daerah dari Sektor Retribusi Angkutan Umum Cahyono, Iwan; Arfaah, Saiful
INTEK: Jurnal Penelitian Vol 4 No 2 (2017): Oktober 2017
Publisher : Politeknik Negeri Ujung Pandang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31963/intek.v4i2.146

Traffic engineering that has been designed around this Kepuhsari terminal is to apply turn right at the intersection Jl.Brawijaya-Jl.Soekarno Hatta-Jl. Mastrip Jombang for public transportation or bus from Surabaya. Then through Jl. Mastrip to stop or enter at Kepuhsari terminal. Segment Jl. Jombang Mastrip is a type 2/1 UD (Undivided) road which is used as bus exit or public transportation access from terminal to out of town Jombang. Then this road segment is changed to type 2/2 undivided. Performance analysis at peak hour on Jl. Mastrip Jombang after the change of the type to 2/2 UD using the method of Manual Capacity of Road Indonesia (MKJI) 1997. Retrieved capacity segment Jl. Mastrip (2/2UD) = 2552 smp/days, and the value of volume and capacity ratio (v/c ratio) is 0.54 means that the current condition of the traffic in the Jl. Mastrip is still stable. While in the next 5 years, the value of volume and capacity ratio (v/c ratio) is 0.72, that the condition of traffic flow is relatively stable. But the volume and capacity ratio is in critical condition (terms of v/c ratio is â‰¤0,75). Because many buses do not enter the Kepuhsari Terminal, the Government of Jombang suffers a loss of Rp. 82 million per year. With the design of traffic engineering on roads around Kepuhsari Terminal, it can increase the regional finance from of the entrance tax for public transport or buses entering the terminal by 33.7%.

Penyajian Data Hidrologi Tersebar di Sulawesi Selatan dengan Menggunakan Sistem Informasi Geografis (SIG) Faisal, Zulvyah; Iqbal, Muhammad Taufik
INTEK: Jurnal Penelitian Vol 4 No 2 (2017): Oktober 2017
Publisher : Politeknik Negeri Ujung Pandang

Hydrological data is the data that became the basis of planning activities Water Resources Management (SDA) in the river area, such as irrigation building planning, water building, river management, flood control and others. Therefore, hydrological data needs to be managed into a geographic information system to provide accurate, true and timely SDA information for all interested parties. By knowing the position of climate observation post and rain station along with the climatic and rainy data, which can be observed by the public, it is expected that the control over the implementation of development can be done more openly. The results obtained from this research are digital map position of observation post along with climate data, water level and rainfall along with South Sulawesi Province that can be used by public, government, and educational institution that need location of station position and data recording climate observations, water levels and rainfall in South Sulawesi.

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Serpian

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intek@poliupg.ac.id

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Politeknik Negeri Ujung Pandang Kampus 1 Gedung Administrasi Lantai II Jalan Perintis Kemerdekaan KM.10 Tamalanrea Makassar 90245

Location
Kota makassar,

Sulawesi selatan

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Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name Serpian

Contact Email serpian@poliupg.ac.id

Phone +6285241204400

Journal Mail Official intek@poliupg.ac.id

Editorial Address Politeknik Negeri Ujung Pandang Kampus 1 Gedung Administrasi Lantai II Jalan Perintis Kemerdekaan KM.10 Tamalanrea Makassar 90245

Location Kota makassar, Sulawesi selatan INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Contact Name
Serpian

Contact Email
serpian@poliupg.ac.id

Phone
+6285241204400

Journal Mail Official
intek@poliupg.ac.id

Editorial Address
Politeknik Negeri Ujung Pandang Kampus 1 Gedung Administrasi Lantai II Jalan Perintis Kemerdekaan KM.10 Tamalanrea Makassar 90245

Location
Kota makassar,

Sulawesi selatan

INDONESIA