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Nusantara Science and Technology Proceedings
Published by Future Science
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Articles 1,542 Documents
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Line Balancing Techniques for Efficiency Improvement in Construction Steel Company Pulansari, Farida; Sulaiman, Yoga Aulia; Restu
Nusantara Science and Technology Proceedings 1st International Conference Eco-Innovation in Science, Engineering, and Technology
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2020.0535

Abstract

XYZ company is a company engaged in steel construction. This company produces steel construction with several classifications, namely Building Construction (structure) and Mining Construction (Conveyor and Tank). This problem is found in the production process area where the efficiency of the company is not optimal because of the bottleneck between workstations. To increase efficiency and reduce bottlenecks, companies use the Largest Candidate Rule (LCR); Killbridge and the Western Method (KWM); and the Ranked Positional Weights (RPW) Method. After comparing the three methods, LCR has the best results. Production line efficiency is 92.2%, balance delay is 7.8%, and the smoothness index is 14.6 with 11 operators.
Redesigning Ergonomic Vertical Folding Desk in an Apartment Room using Anthropometric Approach Handoyo; Wiraputra, Anindyo Fikri
Nusantara Science and Technology Proceedings 1st International Conference Eco-Innovation in Science, Engineering, and Technology
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2020.0536

Abstract

The use of a desk is generally big and can only be used for learning and does not have any additional functions; it causes the table to consume a lot of space in a room. The occupancy of the vertical occupancy is minimal, given the numerous availability. This design hopes to meet the needs of users who live in a place with narrow areas such as apartments, boards, houses, and other living rooms to do some activities related to the function of furniture that will be designed. With the increasing interest of people living in apartments, it is essential to consider furniture that will be used in a relatively narrow room. Thus, it is needed to overcome the conditions of the confined room. This research aims at redesigning an ergonomic and innovative folding desk in the apartment room, to provide comfort in its users. In improving the folding desk, it is hoped that this proposed folding desk will be more ergonomic and can be used daily. The results show that the recommended size for the ergonomic desk is 62 cm wide, 163 cm long, and 29 cm high; also, the recommended size of the seat is 50 cm high.
Hyperrreality in Avatar Film as a Form of Hegemony, Domination, and Capi-talist Ideology in Facing Society 5.0 Hayati, Kinanti Resmi; Afdholy, Nadia; Nashahta, Terra Bellatrix Aden
Nusantara Science and Technology Proceedings 1st International Conference Eco-Innovation in Science, Engineering, and Technology
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2020.0537

Abstract

Indonesia is a country with third world values, which in the context of international structure is called periphery. The flow of information from the central countries (especially America) has been moving rapidly to Indonesia, not only in the form of economic activities but also in culture. The spread of culture is felt especially with films and television media. Today's globalization enables the mass media industry to create a mass culture and deliver messages to the masses. Capitalist ideology perpetuates the power of the masses by uniforming and homogeneity of events (identical). The film presents a variety of images that provide a stronger illusion related to understanding reality. Generally, film and society are understood as something linear, in the sense that film always influences society based on the content of its mandate without ever having the opposite. Avatar is a fictional film that takes us on a vacation to a planet that seems so real, where natural resources have been overused for decades. Through the film Avatar, the occurrence of hegemony, domination, and capitalist ideology can be seen from the image deliberately done by producers to accompany the masses on a mass culture product. The contents of the media present simulacra, pseudo needs, and create a pseudo world (hyperreality).
Making Virgin Coconut Oil (VCO) with Fermentation Process Using Fermipan and Addition of Pineapple Extract Nurma W, Kindriari; Wilya VP, Robet; Perdana, Dean
Nusantara Science and Technology Proceedings 1st International Conference Eco-Innovation in Science, Engineering, and Technology
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2020.0538

Abstract

Virgin coconut oil (VCO) is a form of processed coconut meat that has recently been produced for commercial use. Virgin coconut oil or pure coconut oil is the result of processed coconut that is free of trans-fatty acid (TFA) or trans-fatty acids that are easily digested and oxidized by the body to prevent accumulation in the body. Trans fatty acids can occur due to the hydrogenation process, so as not to undergo the hydrogenation process, the extraction of coconut oil is carried out by the fermentation process. This research was conducted by the Fermentation method using Fermipan as a microbe and the addition of the bromelin enzyme from pineapple extracts. The variables in this study were 100 ml of coconut milk volume, pH 4, and fermipan weight 0.2 gr. The variables implemented were pineapple extract volume (20, 25, 30, 35, 40) ml, fermentation time (18, 24, 30, 36, 42) hours. Analysis of VCO results compared with VCO SNI, namely the content of water content, free fatty acid numbers, saponification numbers, and iodine numbers. Optimum VCO results were obtained at 30 hours fermentation time and 30 ml pineapple extract which produced 35 ml rendamen, water content 0.08, free fatty acid numbers 0.1, saponification number 72.9, and Iodine number 26.65.
The Influence Model of Reliability, Assurance, Tangibles, Empathy, Responsive-ness on Customer Satisfaction and Highway Users Loyalty Waluyo , Minto; Sumiati; Waluyo, Mohammad Rachman
Nusantara Science and Technology Proceedings 1st International Conference Eco-Innovation in Science, Engineering, and Technology
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2020.0539

Abstract

To harmonize the government program of the National Non-Cash Movement (GNNT), PT. Jasa Marga does service improvement by implementing E-Toll. The implementation of the E-toll service is deemed not fully implemented according to the expected goals. This is evident from the existence of several problems that occur such as double detach, the E-toll card is not read by the reader contactless machine, and the gate is not open, all transaction services become dissatisfied. This study aims to determine the effect of reliability, assurance, tangibles, empathy, and responsiveness variables on customer satisfaction and loyalty of toll road users at PT. Jasa Marga Surabaya - Mojokerto Indonesia. Respondents in this study were toll road users who had crossed the Surabaya - Mojokerto toll road at least once, the number of respondents was 120. This study used the Structural Equation Modeling (SEM) method which was processed using AMOS 22 software. The results showed that the Reliability variable had a significant effect on customer satisfaction, Assurance does not have a significant effect on customer satisfaction, Tangible has no significant effect on customer satisfaction, Empathy has no significant effect on customer satisfaction, Responsiveness has a significant effect on customer satisfaction, customer satisfaction has a significant effect on customer loyalty and the model equation is as follows Y2 = 0.207 X1 + 0.114 X2 + 0.04 X3 + 0.161 X4 + 0.191 X5
Distribution Optimization Using Ant Colony Optimization (ACO) Method Case Research: PT. Coca Cola Official Distributor of Surabaya Area Rusindiyanto; Rahmawati, Nur; Sutejo , Muhammad Andriven Gozali
Nusantara Science and Technology Proceedings 1st International Conference Eco-Innovation in Science, Engineering, and Technology
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2020.0540

Abstract

PT.Coca-Cola Amatil Indonesia is a manufacturing company that produces beverages such as soft drinks, tea, milk, juice, isotonic and mineral water, located in Pandaan. This company has a distribution area that is spread almost all over Indonesia. In the Surabaya area, the company has 30 kiosks/salesmen as partners. The distribution of products in the Surabaya area is done through Take Order (TO) sales. The final product is distributed to consumers through third parties. The purpose of this research is to determine the distribution route with the shortest distance. The distribution problem experienced by this company is better known as the Traveling salesman problem (TSP). TSP is a combinatorial problem where when the problems faced are increasingly complex, the time needed is also getting longer. Several methods for solving TSP have been proposed. One of the best is the metaheuristic method, one of which is Ant Colony Optimization (ACO). In this research, the ACO method is used to solve the TSP problems encountered. The routes generated from the ACO method are 41.3 km which is 9.03% shorter than the actual route.
Effect of Dope Composition and Additive Agent on the Properties of La0.6Sr04Co0.2Fe0.8O3-? Asymmetric Flat Membranes Nurherdiana, Silvana Dwi; Habib, Mohammad Hasnan; Utomo, Wahyu Prasetyo; Kusumawati, Yuly; Akhlus, Syafsir; Fansuri, , Hamzah
Nusantara Science and Technology Proceedings 1st International Conference Eco-Innovation in Science, Engineering, and Technology
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2020.0541

Abstract

In this study, the La0.6Sr0.4Co0.2Fe0.8O3-? (LSCF 6428) asymmetric flat membrane was successfully fabricated using a based-phase inversion technique. The effect of different dope composition and molecular weight of polyethylene glycol (PEG) as a pore-forming agent were investigated to identify the membrane properties in term of uniformly pore configuration and the mechanical strength. The result showed that the addition of dimethyl sulfoxide (DMSO) as the solvent in varied compositions exhibits different morphology and the most uniform finger-like pores with a diameter of 22 ?m were formed using 5.0 ml DMSO. Based on the uniformity of the pores, 5.0 ml DMSO was further used to study the effect of PEG addition. A highly uniform porous configuration with a pore diameter of 17 ?m, less dense layer thickness, the high mechanical strength of 507.2 Hv, and good thermal expansion behavior was achieved when 0.39% PEG 8000 was added. Such PEG 8000 is promoted additive to adjust the LSCF membrane porous configuration parameter to improve oxygen permeation and catalytic performance on partial oxidation of methane.
Different Dietary Protein Sources Affect the Intestinal Tight Junctions in the Colon of Mice Rini , Dina Mustika; Pratiwi , Yunita Satya; Munarko , Hadi; Suzuki , Takuya
Nusantara Science and Technology Proceedings 1st International Conference Eco-Innovation in Science, Engineering, and Technology
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2020.0542

Abstract

This study examined the effects of some dietary protein sources on intestinal barrier function in the colon of mice. 24 female ICR mice were randomly grouped into 4 groups (n=6) fed casein, soybean protein, whey protein concentrate (WPC), and egg white diet for 28 days. In this study, we collected the colon to analyzed the TJs proteins. Cecal contents were also collected to analyze the SCFAs. Mice fed with WPC showed the highest serum LBP concentration. Soybean and casein groups had the highest expression of occludin in the colon of mice. Total SCFAs were not significantly different among the groups. Correlation analysis showed that there is a positive correlation between ZO-1 and ZO-2 with total SCFAs. There is a positive correlation between plasma LBP concentration with claudin-3 expression in the colon of mice. These results confirmed that various dietary protein intake has a significant impact on the regulation of intestinal barrier integrity and SCFAs production might be contributing to the observation.
Wetland Saline Water and Acid Mine Drainage Desalination by InterlayeFree Silica Pectin Membrane from Banan Peels Elma, Muthia; Akhbar; Mustalifah, Fitri Ria; Suryani, Lilis; Rampun, Erdina Lulu Atika; Rahma, Aulia
Nusantara Science and Technology Proceedings 1st International Conference Eco-Innovation in Science, Engineering, and Technology
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2020.0543

Abstract

Wetland water and acid mine drainage are available in South Kalimantan, Indonesia. However, “Wetland saline water (WSW)” phenomena occur in the wetland areas due to the seawater intrusion, this water which contains a high salt concentration is unsafe to be consumed. While acid mine drainage (AMD) pollution becomes an issue in the mining industry that impact human life and the environment. Salt particles could be removed by using a silica pectin membrane. Banana peel has a high pectin substance. Banana pectin (0.5wt% and 0.1wt%) was employed in silica and calcined at 300 and 400 °C. We demonstrate the silica pectin template’s performance without interlayer for wetland water and acid mine drainage desalination. Membranes were developed through a sol-gel method with silica source deposited from tetraethyl orthosilicate (TEOS) and performed by pervaporation at room temperature (~25 °C). As a result, 0.5wt% banana pectin concentration at 300 °C exhibited excellent performance with the highest water fluxes are 8.4 and 10.4 kg m?2 h?1 for WSW and AMD, respectively. Nevertheless, both membranes achieved high salt rejections up to 92%. Thereby, banana pectin as a carbon source impacts the stronger silica bond.
Machine Effective Analysis Using OEE and Six Big Losses Methods in the Filter Making Factory Avichena , Muhammad Haris Indra; Pudji W., Endang
Nusantara Science and Technology Proceedings 1st International Conference Eco-Innovation in Science, Engineering, and Technology
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2020.0544

Abstract

Improper machine maintenance and handling can cause a decrease in the level of engine performance which results in reduced engine effectiveness and productivity. Filter making company is a company engaged in manufacturing filters. The problem faced by the filter manufacturing company is that the company has a breakdown time on the production machine that is too high which causes the machine performance to decrease. To increase productivity, Total Productive Maintenance (TPM) measurements are calculated using Overal Equipment Effectiveness (OEE) calculations. OEE is a systematic method for measuring the effectiveness of a machine or equipment process. In general, the size of the OEE is influenced by the dominant factor that causes the low performance of a machine or equipment which is commonly called six big losses. After that, get the cause of the problem that occurs by using a causal diagram. The results showed that the OEE value on the production machine was 40.63%, the effectiveness value was classified as low because the OEE value standard for world-class companies was 85%. The biggest factor influencing the low value of OEE on this production machine is performance efficiency with the largest percentage of six big losses found in reduced speed losses and idling and minor stoppages losses with an average percentage of 59.41% and 48.86% of all losses. The thing done to overcome the low OEE value on the production machine is the implementation of autonomous maintenance that is given to each operator, conduct training for operators and maintenance technicians, supervise operators about work hygiene.

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