Every year high school students (SMA) or the equivalent who have graduated will continue their education to university. Choosing a Study Program when entering the University level is a decision-making process that requires a lot of consideration for prospective new students. Because the chosen S1 study program is very diverse, students who are still confused will experience difficulties in …
ABSTRACT Riau University hospital is an educational infrastructure institution and health institution in collaboration with Riau University. Most of the patients treated at Riau University hospital are people from the riau university community such as campus staff, lecturers and students. Outside communities that are not from the community of UNRI campus have a small percentage to treat in…
ABSTRACT In coal mining, to check the pH content of the water in the liquid waste from coal mining, most of the mining workers use conventional methods, namely by measuring using a digital pH meter or litmus paper periodically. Manual pH reading system makes handling slow. Based on these reasons the researchers designed a tool that can monitor pH values, the working principle of this tool …
ABSTRACT The use of electric power is one of the basic needs around the world, but there are some areas or places that are also not reached by electricity, such as in coal waste fields that require a pH meter to measure the level of quality standards of waste before disposal. The use of photovoltaic systems is an alternative to solve this problem. In this study, tests and measurements were…
ABSTRACK Utilization of existing sources to be used as an alternative energy supply that has the ability to supply electrical energy, one of the ways is by using solar cells, to fulfill the needs of electrical energy. This solar cells utilization very fit with indonesia climate because indonesia has tropical climate, where the sun shines all year round. Not only that, this energy is renewa…
PT RAPP is one of the companies that uses a three-phase induction motor in production where the motor is used as a pump, pulp dryer, or conveyor. Some districts in PT RAPP have used VSDs as controllers for three-phase induction motors, but some are still using the star-delta system. This study aims to compare the energy use of a three-phase induction motor when it is controlled by a Variabl…
ABSTRACT There were several issues that could interfere with large-scale PV performance. The shading effect on the PV array caused reduced absorption of solar radiation in the modules in the PV array. The reduced absorption of solar radiation results in a decreased in the voltage on the PV string and disrupted the performance of the PV array system. This research designed a miniature PV fa…
ABSTRACT DESIGN AND BUILD SMART STOP CONTACT FOR CHARGING HANDPHONE DRIVER OJEK ONLINE is useful to facilitate human performance in controlling how long it takes to charge cellphones. The main components of this tool consist of Arduino Uno, Relay as an automatic switch, Current sensor as a counter for the energy used, Pushbutton as a setting button and so on to support this tool to operat…
ABSTRACT The main purpose of the design of electric lawn mowers using universal motors is to design lawn mowers using battery power that are environmentally friendly, save fuel for the main energy source of lawn mowers and reduce noise from lawn mowers . The conclusions obtained are: (1) The motor used to rotate the lawn mower is a universal 100 watt motor and the battery used is 12 volt 1…
ABSTRACT Currently, electrical energy is a major need for society, almost all people depend on electrical energy for all fields ranging from industry, health, education and households. The need for electrical energy is very high among the people resulting in the use of electrical energy is also getting higher. Especially among households. Given the limited availability of fossil energy sou…
ABSTRACT Fingerprint-based attendance is a very effective method for monitoring attendance levels in lectures. Fingerprint technology is a tool to make it easier for students to do attendance and also avoid manipulating attendance data which is very easy to do by manual attendance. The solution offered is to design a system that can read the user's fingerprints using the Arduino Uno Microc…
Electricity is a very important requirement, especially in the field of information technology development, educational facilities and households. Application of alternative electrical energy sources as backup energy by utilizing direct current (DC) energy sources from batteries which are converted through circuit stages so that they can be used as an alternating current (AC) backup energy …
Regular door locks are prone to the risk of being missed or lost. In a person there is something very special, namely fingerprints that can be used as natural keys. In this study, a key device was designed to be used in charity boxes using a fingerprint sensor (Fingeprint). In the charity box lock system, the fingerprint sensor (Fingeprint) will be input by the user's finger which will prov…
ABSTRAK Dispenser hand sanitizer menggunakan sensor ultrasonic untuk mendeteksi jika ada tangan agar alat dapat member hand sanitizer ke tangan ,alat ini di buat untuk mengingatkan dan membiasakan agar masyarakat agar selalu membersihkan tangannya terutama saat ingin memasuki ruangan tertutup terutama Pada saat pandemi seperti ini dan pemerintah dan paramedic pun menyarankan agar kita unt…
Abstract The need for communication services is now increasing. To fulfill communication services, every operator or company that handles troubleshoot or maintenance on fiber optic communication systems can solve it quickly. This research helps to solve these problems. Researchers analyzed the fiber optic transmission power link budget for Sail link site - East Tangkerang Site, Pekanbaru …
Bungaraya Subdistrict is one of the sub-districts in Siak Sri Indrapura Regency which continues to grow rapidly, starting with forest land and becoming productive plantation land as its population grows. In research conducted by the PPIG research team at the University of Riau, it has carried out mapping of Bungaraya District, the results of this study have provided the final result in the form…
People who still don't pay attention to stomachache disorders, because of their daily activities activities. With this, many people experience stomach pain at an already serious stage and even difficult to treat. Due to lack of attention to early symptoms. We hereby need someone who expert in the field, namely an expert. So that the problems that occur can be resolved properly according to prop…
The Information and Communication Technology Integrated Services Unit (UPT TIK) is an unit at the University of Riau which is engaged in the service and management of everything related to information technology. UPT TIK manages network devices such as routers and switches that are scattered in every faculty/ institution building in the University of Riau. Network administrator whose task is to…
Almost every campus, especially in the Faculty of Engineering, has posted pictures or pamphlets regarding the plans or maps of buildings on each of the walls of the building, but there is no visualization of the building in the form of a 3D object. Currently, there is no digital media that can provide interactive information ab out buildings in the Faculty of Engineering, University of Riau…
In health science, the eye is one of the senses that is very important in human life. But the eye is also a dangerous disease because the eye is very susceptible to diseases caused by dust, bacteria, smoke and others. So it will greatly interfere with human vision and cause blindness. Eye diseases can be diagnosed through the symptoms experienced by the patient, through these symptoms an expert…