Rainfall in Indonesia is classified as high, indicated by the average which ranges from 2000-4000 mm/year. This potential, on the other hand, often creates problems as a result of rain falling to the surface which usually only becomes surface runoff, inundation, and flooding. Infiltration wells are rainwater...

Concrete precast technology has been developing and already used for many building structures. The components that have thin dimensions sometimes have problems in casting like its flowing and compaction. Self-Compacting Concrete (SCC) does not need to vibrate to achieve full compaction and it can flow...

Concrete is a type of building structure material, both buildings, bridges, and roads. Concrete is a construction material obtained from mixing sand, gravel, or crushed stone, cement, and water. To improve the properties of concrete, several kinds of additives that have certain functions are added to...

Road construction is one of the government’s efforts to facilitate the mobilization of the Indonesian people, both economically and socially. The purpose of this study was to design the geometric and rigid pavement thickness on Jalan Lingkar Barat SP Sports Center - Bukit Sulap STA 0+100 to STA 7+583...

Concrete is a split mixture, sand, cement, water, and additives. The concrete to be designed is made of a mixture of cement with bottom ash + sawdust, split, sand, and water. The purpose of this study was to determine the effect of using bottom ash + sawdust and the ratio between bottom ash + sawdust...

The special bicycle lane has been inaugurated by the Palembang city government, the mayor of Palembang, in 2020 where the lane is divided into three official routes for bicycle lanes. The government’s purpose to build these three special bicycle lanes is to regulate traffic flow and facilitate cyclists...

Construction that continues to be carried out in the city of Palembang, will result in changes to existing land use, more and more swamp areas are stockpiled to build buildings on them, this can certainly have an impact on the reduction of water catchment areas, with the result that when it rains it...

The number of rivers scattered throughout Indonesia can certainly be used as an alternative energy source, one of which is micro-hydro power plants, it is a power plant that uses water resources on a small scale as a turbine drive to produce electrical energy, where the generation of this energy is influenced...

The robot brings automation to every sector of human life, including agriculture. Automation in agriculture might be the solution to get a higher quality harvest and less dependency on human farming. The most suitable type of robot for harvesting is an arm robot manipulator. The harvesting robot needs...

South Sumatra has an abundant solar energy source waiting to be optimally optimized. This potential is promising in all the economic sectors, such as agriculture. Solar energy application is one of digital farming implementation for agriculture and is expected to ease the farmers’ workload. This paper...

The Palembang city government has implemented Bus Rapid Transit (BRT) since 2010 until now, in order to carry out the replacement/renewal of the City Bus. The BRT in the city of Palembang called “BRT Trans Musi” consists of two business entities, namely BRT owned by BUMD SP2J (Palembang Jaya Development...

Steels, as one of the main components of construction requires great strength. Steel can be modified its strength by adjusting the percentage of the amount of its constituent substance composition. Some substances that can be used as a composition in steel include: Iron (Fe), Carbon (C), Phosphorus (P),...

Soil is the most widely used material in the construction of a construction. In order for the soil to carry the construction load on it, an improvement in the structure and density of the soil itself is needed. This is in accordance with the technical requirement that the soil must be hard. If the soil...

The subchondral bone layer has an important role in supporting the articular cartilage under mechanical loads. Therefore, subchondral bone can affect cartilage damage, in this case osteoarthritis. Many studies have addressed osteoarthritis, but few studies have focused on the influence of subchondral...

This study aims to determine the dimensional accuracy and porosity of polylactic acid scaffold using 3D printing and the value of the effective elastic modulus. The main contribution of this research is to obtain the most suitable scaffold porosity for use as cancellous bone implants. It was obtained...

The effective synthesis of ZnO/NiFe2O4 photocatalyst with a co-precipitation technique was used to degrade dyes in the air in this study. XRD, SEM-EDS, and other equipment are used to characterize the crystalline phase, surface morphology, and chemical composition of photocatalysts. The exact peaks of...

Coal gasification is the process of converting solid into a gas mixture that has fuel value. Coal gasification will produce gas in the form of synthetic gas (syngas) with the main components consisting of carbon monoxide (CO), hydrogen(H2), and (CH4) gas. By converting coal using gasification as a clean...

During the Covid 19 pandemic, all learning cannot be carried out face-to-face, especially with learning that requires a practicum. Based on these problems, the authors researched the form of research and development based on quantitative research methods. Practical learning based on the virtual reality...

Herbal tea is a term for herb flowers, leaves, seeds, roots or dried fruit that is not derived from the tea plant (Camellia sinensis). One of the plants that can be used as herbal teas are butterfly pea (Clitoria ternatea) and ginger (Zingiber officinale). Butterfly pea is known traditionally as an eye...

Kempelang is a typical food of Palembang City. The hallmark of ths food lies in the prominent taste of fish. The use of fish will affect the distinctive taste and price of this food. Kempelang crackers are one of the small industry products that are quite popular in the community. In order for kempelang...

According to the Geological Agency (2015), Indonesia’s resources total are 106.845 billion tons and coal reserves are 32.263 billion tons. Behind the reasons for choosing coal as an energy source, there are still some disadvantages of using coal directly. One of them is the coal contains a lot of pollutant...

Energy consumption and environmental pollutants have to become present issues. So, the reduced of energy fossil in the community is to overcome the highly prices of oil and gas. Therefore, an alternative energy innovation from biomass is needed. Gasification is to energy produces from solid material...

The use of coal as primary energy in Indonesia will continue to be carried out, although slowly it will experience a significant decline until 2050 by the mandate of the National Energy Policy and the General National Energy Plan; this is more or less due to the potential of national coal reserves of...

The limited stock of non-renewable fuels has caused the necessity of finding alternative renewable and substitute fuels such as bioethanol. However, the high cost of the raw materials and the risk of transferring agricultural lands are the main obstacle to production and loss in food supplies. Therefore,...

Palm kernel oil (PKO) is as oil to make mayonnaise. Mayonnaise is a mixture of vegetable oil with lime, sugar, salt, and egg yolk as an emulsifier that will form an emulsion system. This study aimed to determine the effect of adding vegetable oil to the quality of mayonnaise from PKO. The analysis carried...

Soap is one type of surfactant made from natural oils or fats. The saponification procedure produces soap. Soap serves to emulsify dirt in the form of oil or other impurities. Many soaps sold in the market use synthetic additives as antioxidants that can interfere with skin health for those with sensitive...

Biodiesel is a substitute for diesel fuel which is produced from the synthesis of various plant or animal oils. Waste cooking oil is an example of plant oil that can be used as raw material to make biodiesel. To prevent saponification at the trans-esterification stage it use Deep Eutectic Solvent (DES)...

A single-phase ac permanent magnet generator has been constructed by modifying a squirrel cage single-phase ac induction motor by embedding permanent magnet poles in the rotor and rewinding the armature stator windings. This single-phase ac permanent magnet generator is then used to generate electricity...

Electrical load in industrial sector is mainly inductive that requires large amount of reactive power supply. Large reactive power consumption may give problems to electrical power supply and distribution system such as lower power factor, higher power loss for both electrical power distribution system...

Biodiesel is an environmentally acceptable alternative fuel that has no negative health effects and may be used in vehicles to cut emissions when compared to regular oil. Biodiesel can be produced from the pyrolysis process of Fatty Acid Methyl Ester (FAME) using a fly ash catalyst. The purpose of this...

Induction motors are the most widely used motors currently, because they have a simple construction, are relatively inexpensive, lighter and have high efficiency with an easy to maintain compared to DC Motors. However, in terms of setting the speed and torque of an induction motor it is not an easy problem...

The road network that is spread throughout the Palembang city certainly has different conditions depending on the use of the road, on some roads that are often flooded or passed by vehicles with excess loads become damaged more quickly before the achievement of the service life of the road, this road...

The Wind power is one of the promising energy technologies, which can utilize wind energy as a source of renewable energy. So, in this case which a tool is needed, namely a wind turbine, but one of the problems that increase the wind speed in a low wind speed area. It must develop a device to increase...

The waste problem commonly is almost the same in every big city. When it is not managed properly, it will be piled up very quickly. The city of Jambi produces approximately 1,838.48 m3/day of waste. Organic waste originating from market waste in Jambi City is dominated by vegetable waste, so that its...

In this study, the author intends to improve online learning media (E-Learning) which is widely used by all educational institutions in Indonesia and even throughout the world. Progressive Web Application (PWA) itself is the ability of an application to have features such as web-based applications in...

The location of the solar panel installation affects the intensity of the light absorbed. Of the three test locations; on the roof, on the ground, on the water, the most significant increase in light intensity is on the roof. The position of the solar panel is at 30º, the average light intensity is 80300...

Number of visitors to engineering laboratory restrictions were carried out, because it could lead to crowds of students, resulting in the transmission of the SARS-CoV-2 virus that causes covid-19. The Telecommunications Engineering Laboratory is one of the facilities at the Sriwijaya State Polytechnic,...

Electric vehicles are one of the vehicles without emissions which is an alternative to reduce air pollution. One of the things to be outlined is the limitations of fossil fuels that are getting run out. Due to the higher world oil prices, many people are looking for alternatives to car fuel, one of which...

Agricultural sector requires electrical energy in the on a not-too-wide area called the hydroponic planting system. Hydroponic systems utilize the flow of water and the provision of nutrients. However, sometimes the use of conventional energy does off so that the supply of water and nutrients also stops...

Electrical energy is included in the most essential needs and cannot be separated from human activities. The electrical energy produced is still dominated by power plants by conventional energy sources so that the use of alternative energy is needed to prevent the limitation of energy sources. Alternative...

Technology has been integrated into daily uses electrical energy as the main energy source. In the utilization of electrical energy, there is a very detrimental waste such as turning on electronic equipment but not being used. In addition to the factor of human negligence, the unmonitored electrical...

Eucalyptus pellita bark is a waste from the pulp industry that can be used as a raw material in activated carbon manufacturing because it contains high enough cellulose, hemicellulose, and lignin. This study aims to determine the effect of various carbonization temperatures and KOH activator concentrations...

Solar energy is a renewable energy and has unlimited availability. Indonesia is one of the countries traversed by the equator and has a tropical climate and sunshine throughout the year. Solar panels are a system that can convert sunlight energy into electrical energy by utilizing the photovoltaic effect....

Hardware Design and Simulation of Lung Sound Detector to Analyze Lung Abnormalities Based on Arduino Mega and NodeMCU ESP32 is a development of auscultation technique which is supported by signal display on oscilloscope, organic light-emitting diodes and computer on the lung sound detection circuit system...

Vehicle theft is still a big problem, usually by damaging the ignition switch. So that additional security is needed in a vehicle. The following paper describes a vehicle security system with a combination of a touch key and voice commands to be installed on a motorcycle. To prevent theft, a motorcycle...

Songket weaving craft of Palembang City has been the center of the easy ikat weaving craft since ancient times and has become the hallmark of the city of Palembang. Currently the production process used by the songket weaving craft is still very simple, most of the work process in making this woven fabric...

Equitable quality of education is still a national strategic issue, especially since the Covid-19 pandemic has not yet ended. Learning through Online Virtual Classroom (OVC) is needed to fulfill equal access to quality education for the community. One of the technologies that can be used to build virtual...

The fishery sector is one of the main commodities in South Sumatra because fish consumption in South Sumatra is relatively high due to the many processed snacks made with fish. Based on BPS data, fish commodity is one of the contributors to 0.27% of increasing inflation in South Sumatra. This is an opportunity...

TPACK Framework (Technological Pedagogical Content Knowledge) is an ultra-important aspect for learning activities. It is not only about how to develop a good teaching process including giving and scoring assessment instruments but also understanding students’ behavior and its psychological aspect. Pedagogy...

One form of selection for new student admissions at Polsri that prospective students can choose is PMDK-PN Bidikmisi (Penelusuran Minat dan Bakat Politeknik Negeri). This selection is specifically for prospective students who have achievements in various fields and are economically disadvantaged. The...

Practicum or experiment is an important learning method to be implemented in learning because it can provide direct experience for students to introduce, familiarize, and train students to carry out scientific steps and procedural knowledge. During the COVID-19 pandemic, teaching and learning activities...

This paper proposes a low cost air quality monitoring system using LoRa-based communication technology. The proposed system consists of several sensor nodes and a gateway. Sensor nodes read pollutant levels in the air using the MQ-7 sensor for CO gas, MQ-135 for CO2 gas, GP2Y1010 for Particulates Matter...

The purpose of this tool is to help lekor entrepreneurs save time and make it easier for entrepreneurs to make lekor dough, because this makes kemplang faster by simply connecting an android smartphone to Bluetooth, the dough mixer can be controlled remotely but still have the maximum distance This tool...

Multimedia technology is a technique in the computer field that combines more than one media in a form of communication that includes text, sound, graphics, animation, and video into a computer system. Computers in the field of multimedia and graphic design as data processors will make an information...

This study develops a single page application (SPA) model which is implemented in the business intelligence dashboard at the Sriwijaya State Polytechnic. The technology used in this research is AJAX on the client side, and RESTful web service on the server side. Several HTTP methods such as GET, PUT,...

GIS is one of the tools ease the user for get information based on map images that have been processed. In addition to technical aspects, GIS needs to involve psychological factors and user emotions so as to provide user comfortable. Kansei Engineering is an engineering method that involves psychological...

The program for selecting outstanding academic administrative staff is one of the programs organized by the ministry as a reward for the performance of academic administrative staff. This program is carried out in stages from the university level to the national level. This study aims to create a model...

Garbage is a worldwide problem that has not been fully handled, including in Indonesia. As citizens, the human has an obligation to dispose the garbage properly, however, there are so many people who still do not care about this problem. In this situation, The author introduces the Garbage Robot (G-Bot)...

The signal quality received by the mobile device may be poor due to impediments between the base station and the mobile station, such as building structures or vast distances. This poor quality will cause communication issues, therefore need a repeater at the receiver. The difference between active and...

Cases of the Covid-19 virus have hit all over the world from Asia, Europe, America, Australia and Africa, so the World Health Organization (WHO) states that cases of Covid19 virus are not endemic but pandemics in the world because it has lasted almost 2 years after it began at the end of 2019 in Wuhan...

The application of performance optimization of the MIMO antenna system device is basically the use of spatial dimensions in increasing diversity in both reception and transmission. Spatial signal processing then becomes the main concept in the Antenna system. Antenna arrangement is an important part...

Nowadays, Wireless Body Area Network has an important role in health care monitoring applications. This practical method offers more advantages in monitoring patient health care remotely in real-time, for example, increasing human discipline in health care, easy to operate, flexible, and able to reduce...

In a health monitoring system, an Android-based Health Detector (AHD) application uses fuzzy Mamdani to detect health concerns. The data given can be used as an input for multi-sensor readings produced from physiological health detection. The body’s total health is determined when the detected health...

The purpose of this study is to develop a traffic accident monitoring system employing a variety of sensors (accelerometer sensors, picture and sound sensors, GPS) in connection with Intelligent Transportation System applications on the Android platform. The system can automatically detect traffic accidents...

Malnutrition is one of the diseases that Indonesia is worried about, not only a burden on the state, but also a burden on the family. Of course this is also a concern of the local government, including Prabumulih City. Based on a report from the family health and community nutrition section at the Prabumulih...

12 March 2021 WHO (Whorld Health Organization) declared Covid-19 a pandemic. The SARS-CoV-2 virus has infected 5,817,317 people with 216 countries infected as of May 28, 2020. For this reason, a solution is needed to break this covid chain, one of which is a detection application that can be used as...

The Activity monitoring system is urgently needed due to the development in the infrastructure is not equal to the human consciousness to protect and keep it. This system can be used to prevent human to destroy the environment. However, how to design the device interface that can be used to monitor the...

The use of cosmetics for young people in the current era has become a trend in itself. Many cosmetic brand products on the market make people have to be literate about what content they contain. Generally, cosmetics with natural ingredients are the target of young people. Extraction of dragon fruit peel...

Waste is organic and inorganic materials from factories and households that are not used that can cause environmental pollution. Some of the waste that is widely found in the South Sumatra region is snakehead fishbone waste from the food industry, and coal fly ash from the Steam Power Plant. Snakehead...

Palembang city is one of the metropolitan cities in Indonesia. The strongest character is seen when the growth of the residential environment is quite dense and the economic level of the community is quite low. This is the impact of high land and property prices in big cities such as Palembang. The phenomenon...

The purpose of this study is to innovate the drum tools used in the manufacture of shell charcoal, the process takes 8 to 10 hours, and a lot of smoke that causes pollution, as well as charcoal results obtained only 40%, so the purpose of this study is to increase charcoal results and accelerate combustion...

Using lightweight building materials is one option to mitigate the structure of buildings and other civil buildings against earthquake disasters. This method aims to minimize the weight of the building as the magnitude of the earthquake that hits the building is directly proportional to the building’s...

The qualities of the raw materials utilized have a significant impact on the features of vegetable oil-based fuel products. The goal of this study is to find out what features palm oil solid waste has as a raw material for bio-oil production. In this study, shell and Empty Fruit Bunch (EFB) waste are...

The electric vehicles (EVs) become very popular this day as an effect of the demand in order to reduce automobile emissions. The utilization of energy efficiency to preserve the global environment has been one of public concern. One of current interest is to provide the equipment related to efficient...

Organic fertilizer are fertilizer that work in increasing the biological, chemical and physical activities of the soil so that the soil becomes fertile and good for plant growth. Kersen leaves and eggshells are materials that can be used as liquid organic fertilizer because they contain various types...

The pandemic caused by COVID-19 virus is a big thing faced by people all over the world, including Indonesia. Washing hands with soap and water is one way to prevent the spread of COVID-19 virus. Soap formation is the saponification process which is the reaction between triglycerides and alkali that...

The infrastructure development is not equal to the consciousness of keeping it. In many areas, the destruction occurs before the development has been finished. One of them can be seen in Sekanak River restoration. Some parts have been damaged although the development has still be in progress. Therefore,...