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Sainteks: Jurnal Sain dan Teknik
Published by Universitas Insan Cendekia Mandiri
ISSN : -     EISSN : 26858304     DOI : https://doi.org/10.37577/sainteks.v5i2
Core Subject : Science, Engineering,
Chemical Engineering, Chemistry & Bioengineering Chemistry Decision Sciences, Operations Research & Management Engineering Industrial & Manufacturing Engineering
Sainteks is a scientific journal that publishes research papers encompassing all aspects of natural sciences, technology and engineering. This journal is published 2 (two) times a year (March and September) by the Faculty of Engineering UICM d/h UNBAR. The fields covered by the Sainteks Journal include: - Chemical Engineering - Textile Chemical Technology - Industrial Engineering - Science - Textile Industry Technology - Environment
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 16 Documents
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Search results for , issue "Vol 5 No 2 (2023): September" : 16 Documents clear
Optimum Splice Thickness Ratio Splicer of a Winding Machine to PE20KT Thread Splicing Quality Hendri Pujianto; Bambang Yulianto; Hamdan S Bintang; Dinda Amelia Pramesti
Sainteks: Jurnal Sain dan Teknik Vol 5 No 2 (2023): September
Publisher : Universitas Insan Cendekia Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37577/sainteks.v5i2.605

Abstract

Winding machines are needed after the spinning process on ring-spinning machines because small packages of spinnerets are mostly not suitable for efficiently carrying out subsequent processes such as weaving and knitting. The splicer is independently actuated to optimize splicing cycles. PT Delta Dunia Tekstil II (DDT 2) is a company operating in the spinning industry, with the CD line producing 100% polyester yarn, which is used to make fabric in the knitting process. Based on observations, thread defects occur, such as loops and holes in the knitted fabric, because the thread splices resulting from the winding process are brittle and thin. Experiments on setting joint thickness parameters on splicer adjustment indicators 1–5 with a ratio of 0.25 were carried out. After carrying out the experiment, 3 ratios were obtained for sampling visual tests and joint strength, namely a ratio of 2.5, 2.75, and 3. Observing and calculating the splice strength of the three splicer ratios sampled, it was found that the ratio of parameter 3 in the splicer was visually very good and consistent. Strange results also meet the standard, of 92.37%. The optimal splicer ratio setting that can be used for the Carded 20 KT production process is setting the splicer ratio with a splice thickness parameter of 3.
Analysis of Interest In Using Electrical Bicycles in Palangka Raya Vivien Nopella Valentina; Robby Robby; Sutan Parasian Silitonga
Sainteks: Jurnal Sain dan Teknik Vol 5 No 2 (2023): September
Publisher : Universitas Insan Cendekia Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37577/sainteks.v5i2.606

Abstract

Every year the number of population growth is increasing, therefore the use of transportation is also increasing. With the existence of environmentally friendly transportation products, it is hoped that more and more people will contribute to using them to reduce the impact of global warming. One of the environmentally friendly transportation products is an electric bicycle. This study specifically aims to analyze the characteristics of electric bicycle mode selection and analyze the electric bicycle mode selection model in the city of Palangka Raya. The development of electric bicycles in anticipation of depleting reserves of fuel oil has begun. Palangka Raya City is one of the cities where the use of electric bicycles is gaining popularity. The Logit Binomial model was used to analyze the data from the sort of survey employed in this research, which was based on respondents' expressed preferences. According to the findings of the research, it was shown that what influenced interest in choosing the mode of electric bicycle use were the variables age (X1), gender (X2), family structure (X3), motorcycle ownership (X11), long distance traveled (X15), education/school (X22), spending per month (X24) it is obtained that the overall model prediction rate variable is 79%.
In vitro antagonism test of endophytic isolates from the ciplukan plant (Physalis angulata L.) against Ralstonia solanacearums Ika Afifah Nugraheni; Inneke Ashri Mawaddah
Sainteks: Jurnal Sain dan Teknik Vol 5 No 2 (2023): September
Publisher : Universitas Insan Cendekia Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37577/sainteks.v5i2.607

Abstract

Ralstonia solanacearum was a pathogenic bacteria that causes wilt disease which can cause up to one hundred percent damage to horticultural plants. Therefore, a control effort was needed to overcome this problem. The use of pesticides was an alternative that can be used to suppress the growth of the pathogen R. solanacearum. However, its continuous use poses a high risk to the environment so friendly and safe control efforts are needed. One way was by utilizing endophytic bacteria. This study aims to test the ability of endophytic bacterial isolates from ciplukan plant (Physalis angulata L.) to suppress the growth of the pathogenic bacteria R. solanacearum in vitro. The method in this research includes rejuvenating endophytic bacterial isolates BA2(3), BA3(1), DA1(4) and BU3(5) from ciplukan plants (Physalis angulata L.) obtained from research conducted by Setianah (2020), observations macroscopic and microscopic endophyte isolates, hypersensitivity test of endophytic bacteria on tobacco plants (Nicotiana tabacum L.), then continued with an in vitro antagonist test using the Kirby Baurer technique. Research data shows that of the four candidates, two isolates of endophytic bacteria, namely BA2(3) and BU3(5), showed a negative hypersensitivity reaction which was characterized by the absence of necrosis symptoms in the hypersensitivity test, so these isolates could be tested for antagonists. The results of the antagonist test showed that isolates BA2(3) and BU3(5) had the potential to inhibit the growth of R. solanacearum which had an inhibitory diameter of 3.03 mm and 1.60 mm in the first 24 hours of incubation. It is hoped that the ability of endophyte isolates BA2(3) and BU3(5) to inhibit the growth of the pathogen R. solanacearum can be used as a biological agent to reduce the use of pesticides in treating plant diseases.
Analysis of The Ant Number Effects on Ant Colony Optimization for Solving Russia-20-Nodes-SDVRP Instance Ekra Sanggala; Muhammad Ardhya Bisma
Sainteks: Jurnal Sain dan Teknik Vol 5 No 2 (2023): September
Publisher : Universitas Insan Cendekia Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37577/sainteks.v5i2.608

Abstract

SDVRP is a variation of the CVRP that allows different vehicles to visit the same node. ACO performance is influenced by it’s parameter value. The number of ants parameter has a strong influence on ACO Performance, because it influences directly on solution quality and computation time. It is too hard to find the parameter value that can make ACO performance being the best performance. Because of this, what can be done is to test several parameter values, then compare the ACO performance of each parameter value. Russia-20-Nodes-SDVRP Instance is attractive to be solved because it’s number of nodes are not too many, only 20 nodes. Based on that number of nodes, the computation time of this instance is relatively fast and it has a lot of solution candidate. This research focus on the ant number effects on ACO for Solving Russia-20-Nodes-SDVRP Instance. Five ant numbers will be tested, they are 5, 10, 15, 20 and 25 ants, each ant number will be tested 10 times, so there will be 50 tests. These tests show that more ants used, greater possibility of getting a better route, but longer calculation time needed. The decrease in average of length of route is 1,1521% while the increase in average of calculation time is 42.5525%.
The Effect of Temperature Variations in the Pressing Process on Glossing Defects Bigborn 2-Tuck Pants Style 3651 Trousers in the Finishing Department of PT. X Afriani Kusumadewi; Feny Nurherawati; Filly Pravitasari
Sainteks: Jurnal Sain dan Teknik Vol 5 No 2 (2023): September
Publisher : Universitas Insan Cendekia Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37577/sainteks.v5i2.609

Abstract

Abstract: The pressing process is a process of applying heat and pressure at a predetermined time. Temperature, time and pressure in the pressing process in the finishing department play an important role in the quality of the results of pressing garment products at PT X. Various types of main materials used in the garment production process at PT X require different conditions of temperature, time and pressing pressure, so it is necessary to know the appropriate pressing conditions for each type of material. If these three elements are not appropriate, it can give rise to several categories of defects, one of which is often experienced by PT X, namely glossing/shiny defects. The method that used in this research was carried out by experimenting with variations in pressing temperature where the time and pressure variables used were fixed. The temperature variations used in this research include 600C, 700C, 800C, 900C and 1000C.. This research aims to determine the optimum temperature that used in the pressing process in making Bigborn 2-Tuck Pants Style 3651 trousers with the main material composition being 65% Polyester and 35% Katun. The pressing results are then tested for the tensile strength of the fabric towards the warp and towards the weft of the fabric. Based on the experiments carried out, it shows that for temperature variations of 600C and 700C there are poor press defects. At varying temperatures of 800C and 900C, there are no glossing defects. At 1000C it has glossing/shiny defect. Next, to obtain the most optimum temperature conditions, the experiment continued with testing the tensile strength of the fabric. Based on the fabric tensile strength test data, an optimum temperature condition was obtained in the process of pressing Bigborn 2-Tuck Pants Style 3651 trousers, namely at a temperature of 800C. The tensile strength results obtained at a temperature of 800C were 55 kg for the tensile strength of the fabric in the warp direction and the tensile strength of the fabric in the weft direction was 45.5 kg. Keywords: temperature, pressing, glossing
5 Year Effectiveness Index From Research Ministry Of Marine And Fisheries Catur Pramono Adi; Pieter Amalo
Sainteks: Jurnal Sain dan Teknik Vol 5 No 2 (2023): September
Publisher : Universitas Insan Cendekia Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37577/sainteks.v5i2.612

Abstract

Commodity releases whose index measurement is carried out are released commodities based on the Decree of the Minister of Maritime Affairs and Fisheries of the Republic of Indonesia number 22/Kepmen-KP/2014 concerning the release of salty tilapia, Kepmen KP Number 77/KEPMEN-KP/2015 regarding the release of pearl catfish, Kepmen KP Number KEP.25/MEN/2006 concerning the release of the Pasupati catfish variety as a superior seed variety. The purpose of measuring the Effectiveness Index of government policies within the BRSDM KP scope is to calculate the effectiveness index of government policies within the BRSDM KP scope through measurement of recommended technologies and commodity releases. The effectiveness index of government policies at the KP Research and Development Agency is calculated based on the policy implications of the Decree of the Minister of Maritime Affairs and Fisheries regarding technology recommendations (rekomtek) and release of technology commodities (release); research results show that, 1). 2016, with an achievement target of 6.5 (effective category); 2). Policy effectiveness categories are measured using a Likert scale with weighted score intervals or weighted indexes; 3) The achievement of the government policy effectiveness index in 2016 was 6.02 in the category of quite effective, with a weighted score of 65.41 which is in the weighted score range of 52.01 - 68.00; or a weighted index of 4.61 - 6.40.

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