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Mega Novita
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asset@upgris.ac.id
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Jl. Sidodadi Timur No.24, Karangtempel, Kec. Semarang Tim., Kota Semarang, Jawa Tengah 50232
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Kota semarang,
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INDONESIA
Advance Sustainable Science, Engineering and Technology (ASSET)
Published by Universitas PGRI Semarang
ISSN : -     EISSN : 27154211     DOI : https://doi.org/10.26877/asset
Core Subject : Science, Engineering,
Chemical Engineering, Chemistry & Bioengineering Control & Systems Engineering Electrical & Electronics Engineering Energy Materials Science & Nanotechnology
This journal aims to provide a platform for scientists and academicians all over the world to promote, share, and discuss various new issues and developments in different areas of science, engineering, and technology
Arjuna Subject : Energi (semua kategori) - Teknik Energi dan Teknologi Daya
Articles 141 Documents
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Analysis Spatial Pattern Garbage Bank using Web Geographic Information System in Yogyakarta City Vidyana Arsanti; Rizqi Sukma Kharisma; Sidiq Arfianto
Advance Sustainable Science Engineering and Technology Vol 5, No 1 (2023): November-April
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/asset.v5i1.15139

Abstract

Minimizing waste with independent waste management realizes the 3-R principle, one of which is the waste bank program. There are 448 waste banks in the entire city of Yogyakarta, which is about 73% of the total RW in the city of Yogyakarta. However, from this data, the visual form of the spatial distribution of waste banks in Yogyakarta City has yet to be discovered with certainty. This quantitative research analyzes the distribution pattern of waste banks in Yogyakarta City using the Nearest Neighbor Analysis method. The objectives of this study are (1) to determine the visual form of the spatial distribution of waste banks in the city of Yogyakarta; (2) to analyze the distribution pattern of waste banks in the city of Yogyakarta. The results are (1) The visual form of the spatial distribution of waste banks in Yogyakarta City is spread in almost all areas of Yogyakarta City, with an area of 32.5 km2. Waste Banks that have been plotted locations are 448 waste banks; (2) The distribution pattern of the waste bank in the city of Yogyakarta is dispersed or uniform/regular distribution pattern.
Ergonomic Evaluation of Mechanical Workshop Activities to Reduce Musculoskeletal Disorders Saifun Hakim; Heru Prastawa; Novie Susanto
Advance Sustainable Science Engineering and Technology Vol 5, No 1 (2023): November-April
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/asset.v5i1.15036

Abstract

There are many brands of two-wheeled vehicles, one of which is Honda. Entering 1982 to 1984 Honda released the CB 100 and CB 125 with a more attractive appearance. In the type of CB in 1978 to Tiger Revo 2012 has a change in shape that shows the development of innovation. To fulfil the demands of work in the workshop, mechanics experience various types of movements such as moving, bending, turning, holding machines and installing manually without the help of ergonomic aids. This study was conducted on 5 workshop mechanics located in 33 districts/cities in Central Java province. The research results from 5 mechanics resulted in a high risk level using the NERPA, WERA and KIM methods. Then the improvement proposal is made with the design of a tool design in the form of a mechanical work table so that it can reduce the occurrence of Musculoskeletal Disorders. in calculation with tools to disassembling the machine obtained results in the NERPA method of 4 which means the activity has a medium risk. In the WERA method assessment, the final risk value is 33 with a medium risk value. The third calculation using KIM obtained a final risk value of 40 at level 2, meaning that the intensity increased slightly. The calculation of raising the machine obtained a NERPA value of 4 with a medium risk. The WERA method obtained a value of 38 with medium risk. The third calculation using KIM obtained a value of 35 with a level 2 value.
Power Losses Caused by Load Imbalance in the Central Building of PGRI Semarang University Muhammad Zaenal Arifin; Muhammad Amiruddin; Margono Margono
Advance Sustainable Science Engineering and Technology Vol 5, No 1 (2023): November-April
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/asset.v5i1.13854

Abstract

The use of energy is basically very much needed in everyday life. Energy that is widely used is electrical energy, because electricity is one of the important factors in human life. Some electrical energy producers, in the country use fossil fuel sources such as coal and petroleum, and fossil energy is not renewable. Therefore, the government through the Regulation of the Minister of Energy and Mineral Resources number 14 of 2012 regulates energy management to control energy consumption in order to achieve effective and efficient energy utilization. PGRI Semarang University [L1] as an academic institution uses a lot of non-linear loads for administrative, teaching, laboratory and other supporting activities. Based on the analysis of data obtained at the Center Building of PGRI Semarang University experiencing an imbalance, the condition is not in accordance with the standards and risks increasing power losses. Seeing these conditions, recommendations were obtained that can be implemented at the Center Building of PGRI Semarang University, namely, balancing the load of phases R, S, T to reduce current imbalances. From the load imbalance, there were power losses on the neutral wire of 889,363 kW and power usage for one day in the R, S, T phases of 15,497,991 kW  
Analysis Determination of the Best Employee Using the Simple Additive Weighting Method Haryo Kusumo; Achmad Solechan; Febryantahanuji Febryantahanuji
Advance Sustainable Science Engineering and Technology Vol 5, No 1 (2023): November-April
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/asset.v5i1.15062

Abstract

In a company, quality human resources are very important to carry out business processes in accordance with the vision and mission that has been set. CV. Jaya Abadi is a company engaged in the procurement and repair services of various electronic devices and was founded in 2015. To encourage the creation of ever-increasing performance productivity, CV. Jaya Abadi selects the best employees using a decision support system. One of the methods used is the Simple Additive Weighting (SAW) method. In this study, the data used consisted of internal data and external data. There are several criteria that are taken into consideration in selecting the best employees, namely discipline, quality of work, cooperation, and behavior. The SAW method is proven to be effective and practical in calculating to determine the best employee recommendations at CV. Jaya Abadi. Thus, decision makers can consider these recommendations according to the priorities set.
The Effect of Combination of Coconut Water and Sugarcane Water on Freshness Duration and Solution Absorption In Cut Chrysanthemums Ipah Budi Minarti; Muhammad Anas Dzakiy; Siti - Muthoharoh
Advance Sustainable Science Engineering and Technology Vol 5, No 1 (2023): November-April
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/asset.v5i1.15435

Abstract

Indonesia has fertile natural conditions, providing great potential for developing horticultural commodities, one of which is ornamental plants. Chrysanthemum is an ornamental plant that has high economic value and is in high demand, so it must be balanced with the quality and quantity of the flower itself. Chrysanthemum flowers are very susceptible to physical damage after harvesting. The purpose of this study was to see the effect of giving a combination of coconut air and sugarcane air on freshness and absorption of cut chrysanthemum solution. This study used a completely randomized design (CRD) using 1 factor with 4 treatments with 3 replications.P0: 1 liter water (control), P1: 200 ml / l coconut water + 25 ml / l sugarcane juice + 775 ml air, P2: 400 ml / l coconut water + 35 ml / l sugarcane juice + 565 ml air P3: Coconut water 600 ml / l + 45 ml / l sugarcane juice + 355 ml air. Research data on the shelf life of hedge flowers were good and the solution was most absorbed in the P1 treatment with a combination of 200 mL / L coconut water and 25 mL / L sugarcane water with flower freshness reaching 13.3 days. and the absorbed solution was 66.67. Based on the research, it can be denied that there is an effect and interaction of coconut water and sugarcane juice on the freshness and absorption time of the cut chrysanthemum solution.
Measuring Risk Factor Analysis Using PCA Method In Batik Businiess (Case Study: SMEs Batik Cirebon) Alya Az Zahraa; Naniek Utami Handayani; Sri Hartini; Ratna Purwaningsih
Advance Sustainable Science Engineering and Technology Vol 5, No 1 (2023): November-April
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/asset.v5i1.15229

Abstract

The number of business units that sell Batik creates a very high level of competition so that they are required to find alternatives or solutions to be superior to competitors. In addition, it is also necessary to manage business risks and pay attention to factors that support the risk of the Batik fashion business they are running. The purpose of this study was to determine and categorize the main factors supporting the risk of fashion Batik business in Cirebon. This study uses 15 initial variables of Batik fashion business risk which will be tested by means of factor analysis. The method used is Principal Component Analysis (PCA) with SPSS software. Data collection techniques using questionnaires and interviews. The sample used was 50 random respondents in the Batik fashion business unit in Cirebon. Four main factors were obtained from the variables that have been identified in the risk of Cirebon Batik fashion business. Factor 1 is called operational factors, factor 2 is called financial factors, factor 3 is called strategic factors, and factor 4 is called external factors
Glycemic Index of Diverse Rice Genotypes and Rice Products Associated with Health and Diseases Yheni Dwiningsih, S.Si., M.Si., Ph.D; Jawaher Alkahtani, Ph.D.
Advance Sustainable Science Engineering and Technology Vol 5, No 1 (2023): November-April
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/asset.v5i1.15287

Abstract

Rice (Oryza sativa L.) is the primary source of carbohydrate for more than half of global population. The highest rice consumption is in Asia which more than 100 kg per capita. It has been reported that rice elicits a high glycemic index (GI) ranged from 54 to 121 which considers to the higher GI compared to other starchy foods. Rice consumption showed a positive correlation with diabetes incidences. Regular consumption of high-GI rice has been accelerating the development of type-II diabetes problem due to high blood glucose excursions and related to insulin resistance. The objective of this review is to identify rice genotypes and also the rice products for low GI which potentially provide information associated with good eating habits and prevent type-II diabetes and others related diseases. Information regarding GI value of rice and other rice products might help rice consumers to choose the right food to reduce the risk of health problems. Nowadays, it is difficult to find food products with nutritional label of GI value. Most of the food products, the GI value has not been defined yet. Determination of GI in food products will significantly support healthy eating habits.
Analysis of Chemical Inventory Control in the GGCP Unit Using Forecasting and EOQ Methods at PT. XYZ Hisyam Aziz Aditya; Moch. Nuruddin; Yanuar Pandu Negoro
Advance Sustainable Science Engineering and Technology Vol 5, No 3 (2023): August-October
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/asset.v5i3.17205

Abstract

PT. XYZ is a company operating in the energy producing industry. Which has 2 types of products, steam power and electricity. Steam in GGCP contains 3 chemicals, namely Amine, phosphate, oxygen scavenger. However, this company experienced an accumulation of excessive chemical stocks and reduced chemical consumption. This research aims to determine the number of company orders and determine overall inventory costs using forecasting methods and economical order quantities. In calculating the Total Inventory Cost (TIC) results, there is a significant calculation where TIC EOQ has an economical cost for Amine chemicals of IDR. 15,879,937 while the company's TIC is IDR. 36,226,539. with forecast results for Amine chemicals of 4148/ltr, phosphate of 3061/ltr, and scavenger oxygen of 5450/ltr. Meanwhile, the EOQ calculation results obtained a value for Amine chemicals of 1361/ltr, phosphate of 1164/ltr and 1554/ltr for oxygen scavenger chemicals.
Design Optimization of DR3AM Vapor Polishing Device for ABS 3D-Printed Parts Rosa Mae D. Baluyut; Jan Rapaela B. Bartolome; H. Romel B. De Guzman; Josefa L. Morales; Anthony N. Moscosa; Angeline D. Olavides; Jan Aubrey B. Sanchez; Michaela Tayag Espino; Ciara Catherine L. Gache; Brian J. Tuazon; John Ryan C. Dizon
Advance Sustainable Science Engineering and Technology Vol 5, No 2 (2023): May-July
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/asset.v5i2.16271

Abstract

3D printing is an additive manufacturing method that turns digital design into an actual product. A 3D-printed part sometimes requires post-processing to enhance its physical and mechanical properties. Acetone vapor polishing is one of those techniques which is highly beneficial in smoothing ABS 3D-printed parts. Previously, an acetone vapor polishing device has been developed which uses a mist maker. However, for a more efficient polishing method, an optimized vapor polishing device using heat has been fabricated in this study. To assess the efficiency of this device, the researchers test the dimensional accuracy, surface roughness, tensile strength, and impact strength of polished and unpolished ABS 3D-printed specimens. The findings showed that the surface smoothness of the polished cube specimens did not significantly alter its physical geometry. The tensile test reveals that the overall elasticity of the polished tensile specimen has increased significantly while the impact test also shows that the polished specimens have the capacity to sustain a resistive impact from a swinging pendulum. Thus, all testing procedures indicated that post-processing using the optimized vapor polishing device has improved the overall physical and mechanical properties of the polished specimens.
Identification of the Snail Oncomelania hupensis Lindoensis as Schistotomiasi Host Using CNN Muh Alif Alghifari; Hajra Rasmita Ngemba; Junus Widjaja; Syaiful Hendra; Muhammad Yazdi; Yuri Yudhaswana Joefrie
Advance Sustainable Science Engineering and Technology Vol 5, No 3 (2023): August-October
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/asset.v5i3.17195

Abstract

Schistosomiasis is declared by the World Health Organization as a neglected tropical disease. In Indonesia, schistosomiasis is endemic in three regions of Central Sulawesi. In 2022, the schistosomiasis prevalence rate in humans was 1.44%, far from the government's target of 0% prevalence in humans, snails, and mammals by 2025. The role of technology is to identify O.hupensis Lindoensis snails as schistosomiasis hosts among snails in schistosomiasis endemic areas. This system can make it easier for people to recognize O.hupensis Lindoensis snails and can speed up the identification process and reduce survey costs for officers. The identification system is made with digital image processing techniques using the CNN algorithm with Mobile Net architecture. Model updating in the form of 4 classes with 1200 image data. The results of training accuracy of 93% and validation accuracy of 87% were obtained. The training loss function is 0.17, and the validation loss is 0.33

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