A Simple Brushless Motor and Propeller Test Stand for Experiment from Home

A brushless motor and propeller test stand is used to test brushless motors and propellers. This testing instrument is still only available in research laboratories. Students and researchers are unable to use laboratory facilities because of the Covid-19 epidemic, thus students must be able to do tests independently from home. Purchasing this testing instrument would be too expensive for students. It is essential to construct a brushless motor and propeller testing instrument at home using simple components that are easy to get on the marketplace. The design concept reads force data using a loadcell sensor and an HX711 driver, and current and voltage data with an INA 219 sensor. The brushless motor’s rotational speed is controlled by a potentiometer. Force, current, voltage, and power are all examples of test results data. A 16×2 LCD is used to show data immediately. Data is also transmitted via a USB connection to a computer device for storage or additional analysis. This study proposes a simple brushless motor and propeller test stand that can measure forces from 0 gf to 1000 gf with an error rate of 0.72 %. The power that can be read ranges from 0 mW to 18960 mW, with a 0.59 % error rate.

Analysis of IPv6 jumbogram packages transmission using jumbo frame in mikrotik-based tunneling

The validation and accuracy of internet protocol version 6 (IPv6) performance using jumbo frames is still not perfect, due to peer-to-peer connections testing within the same operating system and between operating systems. Therefore, inaccurate data test results. To mitigated, testing with a wider platform is recommended, a medium-scale network connection is proposed such as metropolitan area networks. In this works, a connection between computer devices connected by three proxy routers are made, with different IPv6 segments on each port. Then each computer device sends traffic data to each other using a traffic-generator application. The first test through three routers without tunnel connection is carried out as the first scenario to compare performance with tunnel-based testing. Three parameters have been used in this test, such as maximum transfer unit (MTU) 1500 bytes, MTU 400 bytes and MTU 9000 bytes. The results of the tests conducted show that the use of jumbo frames using a proxy is less effective, even though it produces a larger throughput when using the MTU 4000, but there is fragmentation in the packet passing through the proxy because the packet passing through the proxy is split into 1500 byte sizes.

Classification of EEG signal using EACA based approach at SSVEP-BCI

The brain-computer-interfaces (BCI) can also be referred towards a mindmachine interface that can provide a non-muscular communication channel in between the computer device and human brain. To measure the brain activity, electroencephalography (EEG) has been widely utilized in the applications of BCI to work system in real-time. It has been analyzed that the identification probability performed with other methodologies do not provide optimal classification accuracy. Therefore, it is required to focus on the process of feature extraction to achieve maximum classification accuracy. In this paper, a novel process of data-driven spatial has been proposed to improve the detection of steady state visually evoked potentials (SSVEPs) at BCI. Here, EACA has been proposed, which can develop the reproducibility of SSVEP across many trails. Further this can be utilized to improve the SSVEP from a noisy data signal by eliminating the activities of EEG background. In the simulation process, the SSVEP dataset recorded from given 11 subjects are considered. To validate the performance, the state-of-art method is considered to compare with the EDCA based proposed approach.

Development of Camera-Based Rainfall Intensity Measurement Tool with Fourier Transform Analysis

In this research, the development of a camera-based rainfall intensity measuring instrument with the Fourier Transform Analysis has been carried out. The ESP32 CAM Microcontroller was used to capture images and record rainfall videos. The research objective was to design a development model for measuring rainfall intensity, understanding the working principle of the tool, and knowing the histogram of the rainfall intensity video recording produced by the rainfall intensity detection tool. The research consisted of several stages, namely literature study, design of research tools and components, system design, assembly of tools, testing of all components, programs and screen record testing and image capture. The design model for the development of a measuring instrument for rainfall intensity that has been made is that when water flows through the shower there will be rainfall. The process of rainfall will be captured and recorded by the ESP32 CAM Microcontroller which is accessed via a computer device. Experiments were carried out ten times, with a time span of 60 seconds per experiment and an increase in rainfall every minute, then the data was processed using python software in the form of a histogram (grayscale), which would be analyzed using the Fourier Transform Analysis method. The results showed that the development of a camera-based rainfall intensity gauge has worked well.

CONTROL OF PACKAGING PRINT QUALITY WITH AN INTEGRATED PRODUCTION FLOW SYSTEM IN PREPRESS

The integration of the production flow on precast is the initial requirement in determining the results that will be obtained on a graphic product, especially on the resulting color. The goal is to produce accurate prints with the processed data on a computer device. In the data process conducted using interview and observation methods. Interviews were conducted with resource persons who were experts in their fields and observations made were direct practice guided by experts. The results obtained from the data study carried out are in the form of a file format that is useful for integrating work system flows in the precast section of a graphics industry.Keywords— Control, Integrated Systems, Graphics Technology

Implementation of Meltdown Attack Simulation for Cybersecurity Awareness Material

One of the rising risk in cybersecurity is an attack on cyber physical system. Today’s computer systems has evolve through the development of processor technology, namely by the use of optimization techniques such as out-of-order execution. Using this technique, processors can improve computing system performance without sacrificing manufacture processes. However, the use of these optimization techniques has vulnerabilities, especially on Intel processors. The vulnerability is in the form of data exfiltration in the cache memory that can be exploit by an attack. Meltdown is an exploit attack that takes advantage of such vulnerabilities in modern Intel processors. This vulnerability can be used to extract data that is processed on that specific computer device using said processors, such as passwords, messages, or other credentials. In this paper, we use qualitative research which aims to describe a simulation approach with experience meltdown attack in a safe environment with applied a known meltdown attack scheme and source code to simulate the attack on an Intel Core i7 platform running Linux OS. Then we modified the source code to prove the concept that the Meltdown attack can extract data on devices using Intel processors without consent from the authorized user.

Implementation of Good Computer System Validation Practices In Pharmaceutical Industry- A Review

Computer Systems Validation is a method used to ensure information is generated by a computer-based system that satisfies a set of specified requirements. Compliance with computerized systems is becoming increasingly relevant in the pharmaceutical industry as computer system validations have many benefits, such as enhancing quality control, reducing other validation costs and time, improving compliance with GMP 21 CFR Part 11 Regulation which affects the quality, health, identification or effectiveness of products subject to the GMP Regulations. Both the European Medicines Agency of Europe along with the Food & Drug Administration of the USA has developed CSV practice guidelines. An overview of relevant documents which fulfil the computer system validation along with its best practices implemented is presented below. Official requirements and standards of the USA, Europe, and Switzerland are taken as the main focus. The taken basic GMP guidelines' like Gamp, AVP and PDA implies the same principles and theories. They explain majorly about what to do view point of validation, whereas GAMP describes how to do validation. We strive to define the computer device validation needs of equipment conducted from a pharmaceutical industry perspective. The categorization of a computer system into various frameworks or categories gives the flexible approach for the validation of complex as well as simple computerized systems. The present review article discusses the implementation and various good practices of the pharmaceutical industry to maintain computer system validation. Implementing various good computer system validation activities reduces the re-work and always maintains the quality standards as per the user requirements; as a result of which the future trends will notice merging of various new implemented terminology and techniques as a common practice in mixed sectors.

DESIGNING THE INFORMATION SYSTEM FOR DATA COLLECTION OF COVID-19 SYMPTOMS FOR INDONESIAN CITIZENS

Information systems are the result of rapidly emerging technological developments because human needs as information users of technology are very strong and rapid. Begin with the very rapid growth of computer technology, computers such as smartphones, tablets, notebooks and others are limited in scale. This small computer device must be connected to the Internet so that it can be used properly. And the information system plays its role as a provider of information that computer users want to access when the computer device is linked to the Internet. The information system developed in this paper is the Citizen Data Collection Information System, this system was created using the YII Framework. The YII framework uses the MVC method which makes it easier to develop a Citizen Data Collection Information System. With this Information System, information about the latest condition of the residents can be easily accessed. So that the Kelurahan, Kecamatan, RW, and RT will have the latest information about their residents and easily anticipate if needed. In the development of this system, it has staged such as literature study, observation, interviews, analysis, design, testing, and implementation. The conclusion is that this information system can carry out the desired function when it is implemented.

Desain Pintu Air Berbantu Komputer Untuk Saluran Irigasi Tersier

The effort of human creativity in the field of hydraulics in overcoming the problem of irrigation, one of which is using floodgates. The discharge from the floodgates needs to be adjusted to the water needs of the plant. However, due to the long design process, the computer aided design of sluice on tertiary irrigation channels is needed in order to be able to set the optimum dimensions and output discharges of crops water needs with fast design time. The tool used in the form of a computer device with Ms Excel and AutoCAD software and materials used were secondary data, that is water needs of local varieties of rice plants in Mangkung, Rambitan, NTB on an area of 50 ha. The data’s then calculated and the largest discharge is 0.12 m3/s with plant evapotranspiration of 5.10 mm/day and 6.43 mm/day of effective rainfall, meanwhile the smallest is 0.02 m3/s with plant evapotranspiration of 3.17 mm/day and 3.47 mm/day of effective rainfall. The dimensions of the steel sluice gates obtained are width of sluice gate 0.40 m, height of sluice gate is 0.80 m with an estimated cost of making Rp 7,547,000 per one sluice. The dimensions of the GFRP sliding sluice gates are width of sluice gate 0.50 m, height of sluice gate is 0.75 m with an estimated construction cost of Rp 7,547,000 per one sluice.