Jurnal E-Komtek (Elektro-Komputer-Teknik)
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Published By Politeknik Dharma Patria Kebumen

2622-3066, 2580-3719

2021 ◽  
Vol 5 (1) ◽  
pp. 102-109
Author(s):  
Bahtiar Wilantara Bahtiar ◽  
Hamid Nasrullah ◽  
Atip Suwarno ◽  
Ahmad Nurkholis ◽  
R Chandra ◽  
...  

This study aims to determine the effect of modification of the Honda Tiger 2000 on exhaust emissions of CO and HC. The method used is to modify the carburettor venturi piston and replace the rocker arm with a roller rocker arm. The exhaust emission test used a gas analyzer type SUKYOUNG SY-GA 401. The object of the study was a Honda Tiger 2000 motorcycle. The results showed that modification of the Honda Tiger 2000 motorcycle at idle, 1000 rpm, 1500 rpm, and 2000 rpm increased CO emissions but reduced HC emissions. Based on comparing the motorcycle emission threshold values for manufacture ≤ 2010, namely CO emissions exceeding 5.5% and HC emissions less than 2400 ppm.  Pertamax Turbo fuel consumption is more efficient than Pertalite with a distance ratio of 45 km requiring 1L Pertamax Turbo and 1.4L Petalite.


2021 ◽  
Vol 5 (1) ◽  
pp. 75-88
Author(s):  
Sopingi ◽  
Ety Meikati ◽  
Wijiyanto

The Payment System is a series of interconnected components consisting of rules, institutions, and procedures used for money transactions in fulfilling the obligations of economic activities. The Duta Bangsa University of Surakarta is a case study in this research where the student payment system is still a billing system. The faculty finance department gives bills tuition fees to students one by one. Moreover, it determines the bank used for payments. It resulted in quite many queues when filling out the study plan card (KRS) and exams. This research aims to produce a web service application and standardization with good performance in the payment process at Duta Bangsa University through virtual accounts from various banks and payment channels. The method used to achieve the authors' goals in this study is the Rational Unified Process (RUP) method. The research result is a web service application that can make invoices, inquiries, payments, and reversals of various bank payment channels. The User Acceptance Test results show a very agreeable value of 94.17%, so that the web service is feasible for the production version application. While testing the response time to measure performance for 7 (seven) days, the average response time was 0.49809 seconds.


2021 ◽  
Vol 5 (1) ◽  
pp. 133-141
Author(s):  
Bambang Sudarsono ◽  
Hamid Nasrullah ◽  
Fanani Arif Ghozali ◽  
Aji Apri Setiawan

Accidents caused by malfunctioning of the brake light system are increasing in line with the rise in road facilities. It provides space for drivers to drive vehicles quickly. To overcome this problem, a system that can signal the driver must rapidly identify the damaged brake lights. The purpose of this study was to produce a car brake indicator tool. This tool is an electronic device that functions to determine the brake light when one of the brake lights is off by automatically giving a signal on the car's dashboard. The method used to produce brake work indicator tools consists of designing, manufacturing, and testing. The testing process has been carried out through a lux meter, and the test variables include testing the use of electric current, voltage when the tool is working, and trying the performance of the device on the car. From testing this tool, the results obtained when the current usage of the tool is working, namely before the induction works of 2 amperes and when the induction works it is 0.5 amperes. The magnitude of the voltage when the device is used is 11.8 volts. Based on the experiments that have been carried out, there are no disturbances in the lighting system or other systems on the car when this tool is working. This tool can work well to provide convenience and comfort when driving by car. Based on the experiments that have been carried out, there are no disturbances in the lighting system or other systems on the vehicle when this tool is working. This tool can work well to provide convenience and comfort when driving by car. Based on the experiments that have been carried out, there are no disturbances in the lighting system or other systems on the vehicle when this tool is working. This tool can work well to provide convenience and comfort when driving by car.


2021 ◽  
Vol 5 (1) ◽  
pp. 110-122
Author(s):  
Muhamad Fajar Sidiq ◽  
Sultanul Reza Islami ◽  
M. Agus Shidiq

Painting is the application of paint in liquid form onto the object, to create a thin layer which is then dried to form a hard layer or layers of paint. Many things are influential in the painting process, including the clear coat process which functions as a gloss effect and protects and maintains the paint color of the vehicle. In this research, it was expected to know the effect of the ratio between the thinner and accelerator on the clear coat on drying time, thickness, and glossiness of the clear coat. In this study, the mixture ratio variations of accelerator and thinner used were 0%: 100%, 25%: 75%, 50%: 50%, 75%: 25%. The speeds of drying with the aforementioned ratio of accelerator and thinner were 28 mins, 24 mins, 18 mins, and 16 mins respectively, while the values of the thickness of the ratio were 53, 4 µm, 55.6 µm, 54.03 µm, and 57.1 µm respectively, and the glossiness values of the accelerator and thinner with the ratio were 96.1 Gu, 95.4 Gu, 92.5 Gu, and 93.1 Gu respectively.


2021 ◽  
Vol 5 (1) ◽  
pp. 89-101
Author(s):  
M. Taufiqur Rohman ◽  
Made Kamisutara ◽  
Muhammad Mustajib

Health Sciences Faculty of Muhammadiyah University of Surabaya (UM Surabaya) is a faculty in UM Surabaya. It has a mission to develop academic, general, and student administration services based on quality management systems and the application of Information Technology. To achieve the mission, it is necessary to design and implement Information Technology in assisting administrative service business processes including a letter management system, the attendance system of staff and lecturer, and a financial submission system for the activity plan of the Implementing Unit, Head of Study Program, and Quality Control Group at the Faculty of Health Sciences UM Surabaya. Therefore, this research aimed to build an Enterprise Architecture Planning (EAP) using Zachman Framework method. This research resulted a structured integrated information system Blueprint design along with application prototypes at the Faculty of Health Sciences UM Surabaya. With the Information System Blueprint design, it made it easier for Developers to develop information systems and documented every system transaction process.


2021 ◽  
Vol 5 (1) ◽  
pp. 123-132
Author(s):  
Arif Setyo Nugroho

This study aims to determine the effectiveness of modified copper to reduce carbon monoxide (CO) levels. Copper in the form of a plate shaped like a honeycomb and altered with activated carbon (SiO) and ZSM-5. The test uses a four-stroke 125 CC two-wheeled motor vehicle, fuel using Petalite, gasohol E5, gasohol E10, gasohol E15. The test carried out is the emission test of the effect of fuel variations and modified copper. The use of petalite fuel, variations of honeycomb copper + activated carbon (SiO-C) + ZSM-5 is more effective because it can reduce CO levels the most, which is 3.66% CO at 9000 rpm engine speed. For E5 fuel, the use of a honeycomb-shaped copper exhaust + Titan dioxide (TiO2) + Activated carbon (SiO-C) + ZSM-5 reduces CO levels by 3.42% CO at 9000 rpm engine speed. On the other hand, E10 fuel reduces CO levels by 1.35% CO when using exhaust with honeycomb copper+ TiO2 + SiO-C +ZSM-5.


2021 ◽  
Vol 5 (1) ◽  
pp. 1-12
Author(s):  
Rini Suwartika ◽  
Den Restu Singgih

The very rapid development of technology has a significant impact on human life today. The aids of facilitating human work are starting to be in great demand. Automation of tools is thought to shorten the time, be more accessible and be faster. Smart Home is one's technologies applications needed today. This study aims to designs an IoT-based innovative home prototype. The resulting intelligent home prototype uses the DHT11 sensor at a room temperature detector, the MQ-2 the sensor as a gas leak detector, an ultrasonic sensor as the object detector, the MC38 magnet sensor as door security, a relay as ON or OFF the lamp switch, buzzer as an alarm, and using a microcontroller. A nodemcu with a Wi-Fi module ESP8266 controlled via Blynk App. Research and Development (R & D) method were research method used. It is hoped that the IoT-based Smart Home technology will be provided convenience to its users in everyday life.


2021 ◽  
Vol 5 (1) ◽  
pp. 21-30
Author(s):  
Rachmat Rasyid ◽  
Abdul Ibrahim

One of the wealth of the Indonesian nation is the many types of ornamental plants. Ornamental plants, for example, the Aglaonema flower, which is much favored by hobbyists of ornamental plants, from homemakers, is a problem to distinguish between types of aglaonema ornamental plants with other ornamental plants. So the authors try to research with the latest technology using a deep learning convolutional neural network method. It is for calcifying aglaonema interest. This research is based on having fascinating leaves and colors. With the study results using the CNN method, the products of aglaonema flowers of Adelia, Legacy, Widuri, RedKochin, Tiara with moderate accuracy value are 56%. In contrast, the aglaonema type Sumatra, RedRuby, has the most accuracy a high of 61%.


2021 ◽  
Vol 5 (1) ◽  
pp. 55-64
Author(s):  
Muhammad Dzikri Maulana Syafa’at ◽  
Yulia Bherlinda

The Regional Revenue Management Agency of Kebumen Regency is a government agency that manages regional revenue in Kebumen Regency. The design of automatic curtains is expected to make it easier for office employees to use the facilities. This automatic curtain uses a flow chart and programming logic in designing programs for the light intensity of the IR sensor and the LDR sensor as an automatic curtain indicator using a remote. The design of the automatic curtain consists of an IR sensor and an LDR sensor as input, Arduino UNO as a processor, Relay as a component that transmits commands from the Arduino UNO to the motor, and motor as the output of this project. Automatic curtains at BAPEDA Kebumen can make it easier for employees to use office facilities to make them more durable, more comfortable, and more effective during working hours or on holidays because of the automatic curtain system that has been made.


2021 ◽  
Vol 5 (1) ◽  
pp. 13-20
Author(s):  
John Edgar Anthony ◽  
Asni Tafrikhatin ◽  
Ari Waluyo

The sentiment is the action or point of view of a person based on experience. Evaluation for Offices is one way of getting emotions or feedbacks from clients. A person's response serves as an assessment of the quality of higher education standards. For the administrators to gather feedback from the clients/customers regarding their satisfaction or performance inside the offices or department premise, eSurMent was used as a gathering data tool. The study identifies the strengths and weaknesses of Educational Institution Services based on users' positive and negative responses. It provides a sentiment score from the qualitative data and a numerical response rating from the quantitative evaluation data, and a description of the evaluation results from users. Sentiment analysis is one way of surveys and polls to analyze the responses that researchers found to determine positive and negative reactions from students. Therefore, school administrators will be more aware of the shortcomings of users. Reports generated by the system can be used for self-improvement in the institution. In addition, the results of job evaluations can be used as the basis for opportunities, achievements, or marketing strategies.


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