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Mega Novita
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Jl. Sidodadi Timur No.24, Karangtempel, Kec. Semarang Tim., Kota Semarang, Jawa Tengah 50232
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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 14 Documents
 1   2 
Search results for , issue "Vol 5, No 1 (2023): November-April" : 14 Documents clear
"My Javelin Throw" Android-based Javelin Throw Learning Application Ibnu Fatkhu Royana; Deni Wahyu Jumawan; Bertika Kusuma Prastiwi; Pandu Kresnapati; Tubagus Herlambang; Donny Anhar Fahmi; Muh Isna Nurdin Wibisana; Danang Aji Setyawan; Utvi Hinda Zhannisa
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.v5i1.14902

Abstract

This research is motivated by the need for a new learning model with different and engaging learning media, particularly in javelin throwing education. The aim of this research is to create an Android-based learning media for javelin throw. The method in this research is Research and Development (R&D). The subjects and location of this research are 11th-grade students of SMA Negeri 1 Bantarbolang, Pemalang Regency. In the small-scale research, the sample consists of 21 11th-grade students, while in the large-scale research, the sample consists of 272 11th-grade students. The data collection technique used is a questionnaire as the instrument. The quantitative data analysis technique in this research utilizes descriptive statistical analysis. The final validation results from media experts indicate that all aspects are rated as "Good" with a score of 78%. Meanwhile, the final validation from subject matter experts indicates that all aspects are rated as "Excellent" with a score of 82%. According to the data analysis results in the small-scale trial, the percentage obtained is 86.17%.
Aspect-based Sentiment Analysis on Car Reviews Using SpaCy Dependency Parsing and VADER Muchamad Taufiq Anwar; Dedy Trisanto; Ahmad Juniar; Fitra Aprilindo Sase
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.v5i1.14897

Abstract

All businesses, including car manufacturers, need to understand what aspects of their products are perceived as positive and negative based on user reviews so that they can make improvements for the negative aspects and maintain the already positive aspects of their products. One of the available tools for this task is Sentiment Analysis. The traditional document-level and sentence-level sentiment analysis will only classify each document / sentence into a class. This approach is incapable of finding the more fine-grained sentiment for a specific aspect of interest, for example, comfort, price, engine, paint, etc. Therefore, in this case, Aspect-based Sentiment Analysis is used. A total of 22.702 rows of car review data are scraped from the Edmunds website (www.edmunds.com) for a specific car manufacturer. Dependency Parsing and noun phrase extraction were carried out using the SpaCy module in Python, and VADER sentiment analysis was used to determine the polarity of the sentiment for each noun phrase. Results showed that the vast majority of the sentiments are on the positive aspects: comfortable to drive, good fuel economy / mileage, reliability, spaciousness, value for money, helpful rear camera, quiet ride, good acceleration, well-designed, good sound system, and solid build. The results for the negative aspects have some similar aspects with those in the positive class but has a very low frequency. This finding means that the vast majority of the users are satisfied with multiple aspects of the produced cars. The limitation of this research and future research direction are discussed.
The Effect of Storage Conditions on the Absorption Profile of 2% Lydocaine Hydrochloridum Injection by UV-Vis Spectrophotometry Dian Marlina; Sephia Febriyanti; Arsyeni Destra Anarchy Arsyandi; Nur Anggreini Dwi Sasangka
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.v5i1.14937

Abstract

Lidocaine HCl injection is a sterile product that is easily contaminated when opened. The temperature and humidity in the injection storage conditions also affect the quality of the drug when viewed from the UV-Vis spectrophotometric absorption value. The aimed of this study is to find out how the effect of storage conditions on the absorption profile of 2% lydocaine HCl injection by UV-Vis spectrophotometry. The study used 27 ampoules of 2% lidocaine HCl injection and was qualitatively analyzed using UV-Vis spectrophotometry. The study lasted for 14 days by first storing the injections in storage conditions at room temperature (25-27℃), cold temperatures (5-10℃), and exposed to Ultraviolet light (380 nm). Based on the results of laboratory tests, the most suitable storage condition used for storing lidocaine HCl injection was cold storage (5-10℃) because there was no shift in the maximum wavelength as occurred during the 14th day of UV exposure storage.
Reduction Of Dissolved Ammonia with the Stripper Method in pH and Temperature Variations Ery Fatarina; Priyono Kusumo; Teodora Maria Fernandes Brito Da silva; Much Yusuf Firdaus
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.v5i1.15111

Abstract

Condensate Polishing System (CPS) regeneration waste from PT. Bhimasena Power Indonesia has an ammonia level of 932 mg N/L. Therefore, research on reducing dissolved ammonia waste is very important. Research gaps in reducing dissolved ammonia waste include the effects of time variations and dissolved ammonia concentrations, the effect of water quality, and the impact of using methods on the environment. The purpose of this study was to determine the effect of variations in pH and temperature on the effectiveness of separating ammonia waste and to obtain optimum pH and temperature values for the separation of dissolved ammonia waste. The method used in this experiment is the stripper method. The results showed that the process of reducing dissolved ammonia using the stripper method reached an optimum value at a temperature of 45 °C and pH 12. Under these conditions, a reduction value of 0.75 mg N/L was obtained. So it can be concluded that the stripper method can reduce dissolved ammonia waste properly. The impact of this research can develop a more effective and environmentally friendly waste treatment method
Physical and Chemical Characteristics of Biscuits with Catfish Flour (Clarias batrachus) Addition Rini Umiyati; Putri Fara Dila; Dani Satrio Wicaksono; M Khoiron Ferdiansyah; Rizky Muliani Dwi Ujianti
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.v5i1.15223

Abstract

Fish flour is an important source of animal protein because it contains complex amino acids such as lysine and metinine which are found in animal and fish feeds. Biscuits are snacks that are easy to get and are liked by many people. The purpose of this study was to determine the effect of different characteristics of catfish flour biscuits with the addition of each concentration treatment on the physical, chemical and organoleptic properties of catfish biscuits (0%, 5%, 10%, 15%). The research method used a Completely Randomized Design of One Component Factors with four treatments B0, B1, B2 and B3. Research analysis carried out included chemical properties (moisture content, ash content, protein content, fat content) and color test. The results of this study indicate that biscuits with the addition of catfish flour obtained a moisture content between 4.96-4.53%, ash content 2.19-4.07%, fat content 62.95-78.23%, protein content 6.74 -8.68%, Color between 10.73-7.73%, Texture between 24.01-23.18%. The color test results with the addition of catfish flour can reduce the value of the color test. 
Utilization of Heat from Geothermal Well Pipes as Electricity for Road Lighting Based on The Internet of Things Rizani Firdaus; Muhamad Ariandi
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.v5i1.14980

Abstract

PT. Pertamina Geothermal Energy Area Lumut Balai has a very extreme work location with various contours, safety factors and lack of access to electricity for street lighting are things that need attention given the importance of street lighting in the company's operations. Street lighting is an important element that supports the comfort and safety of road users in their activities at night. The research objective is to design an IoT (Internet Of Things) system that can monitor the utilization of pipe heat into electrical energy for street lighting and provide street lighting needs around geothermal well pipes. In this study used thermoelectric as a tool to generate electrical energy from available heat. The IoT system is used to read data parameters as a tool to display temperature, voltage and current values on the LCD (Liquid Crystal Display) and the Thingspeak website. The temperature value is read by the MAX6675 thermocouple sensor while the INA219 sensor is used to read the voltage and current values. The focus of this research is to heat the thermoelectric so that it can produce electrical energy to turn on the lights as lighting and can monitor parameter data directly. The highest thermoelectric electrical energy output is at a temperature of 75.1˚C. Where at this temperature a voltage of 2.32 V is generated and a current of 0.03 A. The lamp will turn on if the thermoelectric heat is fulfilled. The light turns on when the environment is dark and the light turns off when the environment is bright
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.

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