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Vina Maria Ompusunggu
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+6285276850885
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INDONESIA
JUITECH: Jurnal Ilmiah Fakultas Teknik Universitas Quality
Published by Universitas Quality
ISSN : 25804057     EISSN : 25977261     DOI : http://dx.doi.org/10.36764/ju.v6i1
Core Subject : Engineering,
JUITECH (Scientific Journal of the Faculty of Engineering Quality University) is a peer-reviewed multidisciplinary journal committed to the advancement of scientific knowledge and research findings from several branches of Engineering and Mathematics and Natural Sciences. This journal publishes the latest research results from lecturers and researchers which are widely distributed (Online), including: expertise in energy conversion, construction machinery, manufacturing, and materials, telecommunication, and information engineering, control, and instrumentation, expertise in the field of structural, geotechnical, transportation, and hydro, systems of company management, ergonomic and work systems, and manufacturing systems.
Articles 8 Documents
Search results for , issue "Vol 3, No 2 (2019): Vol 3 No 2" : 8 Documents clear
PREPARASI DAN KARAKTERISASI BIOMASSA KULIT PINANG DAN TEMPURUNG KELAPA MENJADI BRIKET DENGAN MENGGUNAKAN TEPUNG TAPIOKA SEBAGAI PEREKAT Erna Frida; Darnianti Darnianti; Jamal Pandia
JUITECH: Jurnal Ilmiah Fakultas Teknik Universitas Quality Vol 3, No 2 (2019): Vol 3 No 2
Publisher : Universitas Quality

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36764/ju.v3i2.252

Abstract

This study conducted the preparation and characterization of charcoal briquettes originating from areca nut skin biomass and coconut shell using tapioca flour as an adhesive. Stages of preparation are cleaning, carbonization, densification, and characterization. Characterize by measuring the level of water, dust, and bound carbon. The characterization results showed that the briquette's water content ranged from 4.1% - 6.9%, ash content was 2.4 - 5.8%, and carbon content was bound to 44% - 60.9%. This result is by SNI No.01-6235-2000. So it can be useful as an alternative fuel.
PROSES PEMBUATAN CAKE MENGGUNAKAN TEPUNG KOMPOSIT TERIGU, UMBI JALAR DAN TALAS DENGAN METODE EXPERIMENTAL DESIGN Healthy Aldriany Prasetyo
JUITECH: Jurnal Ilmiah Fakultas Teknik Universitas Quality Vol 3, No 2 (2019): Vol 3 No 2
Publisher : Universitas Quality

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36764/ju.v3i2.257

Abstract

The research was aimed to formulation combination of composite flour as partly substitution of wheat flour from blend of wheat flour, sweet potato flour and taro flour in processing of cake. This research used Experimental Design Methods, a Completely Randomized Design (CRD) Non Factorial, with different level of substitution in percents, i.e :T1 = wheat flour (100%), T2 = wheat flour (75%) : sweet potato flour (25%), T3 = wheat flour (50%) : sweet potato flour (50%), T4 = wheat flour (25%) : sweet potato flour (75%), T5 = wheat flour (75%) : taro flour (25%), T6 = wheat flour (50%) : taro flour (50%), T7 = wheat flour (25%) : taro flour (75%). The parameters analysed were moisture content, ash content, protein content, fat content,carbohydrate content and hedonic value of colour, aroma, flavour and texture. The results showed were significant differences (p<0.5) difference formulation combination of composite flour with different level of substitution. The proximate composition showed that wheat flour had higher protein content (9.46%) and lower carbohydrate content (87.77%), while sweet potato flour had protein content(3.96%) and carbohydrate content (92.92%); taro flour had protein (5.62%) and carbohydrate content (92.83%). The sensory analysis of cake showed significant differences between 100% wheat flour and formulation combination of composite flour samples. It was concluded that formulation composite flour T4 into wheat flour gave the cake with the best overall quality acceptabily.
KARAKTERISASI KEAUSAN KOMPOSIT CANGKANG KEMIRI DAN TEMPURUNG KELAPA SEBAGAI BAHAN PEMBUATAN KAMPAS REM (BRAKE PAD) Juan Randy Simamora; Chandra Kurniawan
JUITECH: Jurnal Ilmiah Fakultas Teknik Universitas Quality Vol 3, No 2 (2019): Vol 3 No 2
Publisher : Universitas Quality

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36764/ju.v3i2.253

Abstract

The research has been conducted on the use of candlenut shells and coconut shells as composite materials in the manufacture of brake pads. The design of friction composite formulations is carried out based on four classes of friction material namely fillers, binders, reinforcing fibers and property modifiers with a fixed percentage based on weight. Comparison of the composition of Candlenut shell powder and coconut shell for each sample S-01 (35: 25) wt .-%, S-02 (30: 20) wt .-%, and S-03 (25: 15) wt. -%. From the results of data analysis, the values of water absorption for each sample were S-01 (0.00706%), S-02 (0.000496%), S-03 (0.00584%). The lowest wear test was found in the S-03 sample of 3.67 x 10-5 g / mm2.s. The SEM-EDS test results show the distribution of particles in different friction materials for each sample and show that carbon is present in approximately equal amounts in all formulations. The predominance of the presence of metals in brake linings includes: iron (Fe), magnesium (Mg), carbon (C), and aluminum (Al), silicon (Si), potassium (K)
BENTUK PENATAAN KAWASAN DAN PERMUKIMAN KAMPUNG AUR MEDAN Dasrizal, Dasrizal; Irwansyah, Irwansyah
JUITECH: Jurnal Ilmiah Fakultas Teknik Universitas Quality Vol 3, No 2 (2019): Vol 3 No 2
Publisher : Universitas Quality

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36764/ju.v3i2.258

Abstract

The Settlement Area in Kampung Aur is a densely populated settlement located on the banks of the Deli River in Medan. Until now there has not been a more appropriate solution to the arrangement of the area and its residents although there are in several cities there have been several types of solutions to the problem of densely populated settlements ranging from forced evictions, the construction of new settlements in the form of flat / flat and village improvement programs. That said, the government began to realize that the problem could not be solved by a one-way system. There must be communication with slum dwellers. This then encourages the authors to make an arrangement of the area and its residents with an approach to the behavior of citizens and the types of settlements at this time. This study aims to produce a design of the area and settlements that can accommodate social and cultural aspects of society through the approach of environmental behavior and types of settlements. To achieve this goal, participatory observation will be carried out in every dominant community in the location. Through this observation it will be seen how the environmental settings and behavior work in Kampung Aur. Data on environmental and behavioral settings will then be processed to produce Kampung Aur design completion criteria. From this study it was found that there are two dominant tribes in Kampung Aur, namely Chinese and Minang.
POLA PERGERAKAN TRANSPORTASI PENDUDUK YANG DITIMBULKAN OLEH KAWASAN PERUMAHAN DI KOTA MEDAN Parada Afkiki Eko Saputra; Budi Florianta Tarigan
JUITECH: Jurnal Ilmiah Fakultas Teknik Universitas Quality Vol 3, No 2 (2019): Vol 3 No 2
Publisher : Universitas Quality

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36764/ju.v3i2.254

Abstract

Medan City as the location chosen in this study, has an area of 265.00 km2 with a population of 2,210,624 people and is increasing every year (Badan Pusat Statistik, 2015). With the increasing population of the city increasing activity and the number of good people traveling well. The city of Medan is currently promoting quite rapid development, a development from now on with the change in New settlements in the region which were built by settlement developers who also increased transportation development. It is very interesting to discuss about regional settlements in the city of Medan, especially in terms of trip generation. The housing area that is the object of research is part of land use in the Medan city area. From the research results, the best model that can be used at this time can be applied in housing location planning, namely the linear multiple regression model on luxury housing types, namely Y1 = 3.373 + 1.569 X1 + 0.139 X4 + 0.456 X6, therefore the findings that can be found are the variables that have an impact on the trip generation from housing. The value of the variable Number of family members (X1) is equal to 1,569 X1, it can be interpreted as increasing the value of the number of people who will increase travel production by 1,569 trips / family / day. The value of the variable number of motorcycle ownership (X4) is 0.139 X4 which means increasing the number of one unit will increase travel production by 0.139 trips / family / day. The value of the variable number of families attending school (X6) is 0.456 X6 which is related to an increase of one person increasing the production of trips that is equal to 0.456 trips / family / day.
PREPARASI DISPERSI ANTIBAKTERI BERBAHAN DASAR TITANIUM DIOKSIDA (TIO2) SERTA APLIKASINYA PADA KAIN DENGAN METODA DIP COATING Bunga Fisikanta Bukit; Syarif Hussein Sirait
JUITECH: Jurnal Ilmiah Fakultas Teknik Universitas Quality Vol 3, No 2 (2019): Vol 3 No 2
Publisher : Universitas Quality

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36764/ju.v3i2.259

Abstract

Cases of nosocomial infections in Indonesia are increasing every year. One of the reasons is hospital equipment that is not sterile and poorly maintained in public facilities used in hospitals such as sheets, pillowcases, blankets, curtains, towels, and patient clothes. Everything made from fabrics can be contaminated by bacteria causing infections. In this research, the preparation of antibacterial based on titanium dioxide (TiO2) and its application to the fabric using a simple methodology. Cross-linking using Maleic Acid and catalyst using sodium hypophosphite. The dip-coating method is used to coat the fabric. Then, fabric washing is carried out to see the decrease in the amount of TiO2. Plate Count Method is carried out to see the antibacterial activity on the fabric. Fabric characterization was carried out using SEM and FTIR. SEM shows that TiO2 particles distributed throughout the fabric surface. After washing 10 times, there is a reduction in the amount of TiO2 in the fabric. FTIR aims at cross-linking between TiO2 and fabric. Meanwhile, testing for antibacterial activity showed that no bacteria appeared in all samples.
ANALISIS FAKTOR DAN USULAN PERBAIKAN KUALITAS HASIL CETAK KORAN INDUSTRI GRAFIKA Yusnia Sinambela
JUITECH: Jurnal Ilmiah Fakultas Teknik Universitas Quality Vol 3, No 2 (2019): Vol 3 No 2
Publisher : Universitas Quality

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36764/ju.v3i2.255

Abstract

PT. X as a company engaged in the printing and publishing industry. In carrying out its business activities the company has implemented a production quality control system. Various quality control programs are carried out by the company so as to produce good products and in accordance with established quality standards. But in reality there are still products that are of poor quality. The damaged product is then rejected (separated from the product that falls into good criteria) and will be resold to other parties at a price lower than the general price. This is certainly a loss for the company because it results in a waste of production, especially if the damaged product exceeds the tolerance limit set by the company. Based on the results of the study obtained a large defect in printout Newspapers include blurred colors, not registers and cut. By using a quality analysis using a Fish Bone Diagram, the factors that generally affect print quality are human, material, method, environment and machine
KAJIAN EKSPERIMENTAL KUAT TEKAN BETON BENDA UJI SILINDER DIKEKANG DENGAN BAHAN CARBON FIBER WRAP Immanuel Panusunan Tua Panggabean; Valentana Ardian Tarigan
JUITECH: Jurnal Ilmiah Fakultas Teknik Universitas Quality Vol 3, No 2 (2019): Vol 3 No 2
Publisher : Universitas Quality

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36764/ju.v3i2.256

Abstract

Changes in building functions by increasing the number of floors to the top / vertical direction or also called by increasing the number of levels will increase the burden on the pole/ column, and changes by removing one of the pillars to expand the room will add burden to the columns and beams. Impairment of concrete quality after the implementation of structural construction is also a problem that is often encountered in the implementation of construction. Beams, columns, plates are structural elements used to receive and distribute loads. Expenses that are added as a result of changes in the function of the structure, additional load on the building, or not achieving the quality of the concrete plan of the building structure. Stages of testing by forming cylindrical specimens of 15 (fifteen) pieces, with each of 5 (five) specimens carried out without using carbon fiber wrap to represent the conditions of specimens in the field which are below the standard quality plan in this study concrete quality plans carried out using a job mix formula for f'c = 30 MPa, while 10 (ten) other test specimens are carried out by confinement using fiber wrap material. Observations were made by looking at the addition of compressive strength of concrete on the given fiber wrap restraints. Other observations are made by observing the collapse pattern and the mechanism of collapse that occurs with and without the test specimen mounted in restraints. The compressive strength of concrete increased by 54% for typical restraints 1 using standard fiber direction and 23% for typical restraints 2 using the opposite direction of standard fiber. The collapse model of the Test object that is not restrained is by following the standard collapse model in SNI, while the Test object that is restrained experiences collapse after the Carbon Fiber Wrap material is torn due to the addition of compressive load on the Test Object.

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