Recommendation Systems for Online Learning Materials Using Cosine Similarity and Simple Additive Weighting

This study focuses on searching for teaching materials in order to obtain relevant teaching material information appropriately for further use as material for recommendation of course material to students using the Cosine Similarity method and calculating weighting using the Simple Additive Weighting (SAW) method. With the SAW method, 3 criteria and weight values are determined for each attribute, followed by a ranking process. So that in the end the search results that are ranked in the order of similarity and most relevant can be displayed and then selected and used as recommendations in the student's e-learning learning system. From the results of the study, the Cosine Similarity and SAW methods have provided a fairly good/effective recommendation with an average precision of 0.7867 and a recall of 0.766 so that this method is appropriate to be placed in campus e-Learnin

Android-Based Inspection and Testing Analytical System of Electrical Safety

The process of inspection and testing of electrical safety nowadays is commonly done manually. This method has many weaknesses, one of them is the analysis result needs longer time and less accuracy. To overcome this problem, it needs an information system to inspect and to test the effectiveness of electrical safety. The purpose of this research is to design an android-based application which has function to become a tool to make electrical safety inspection and testing much easier. The parameter that will be used is administration documents checking, assessment, measurement, calculation, and testing. The android operation system is used to fasten the work process and get output that meet safety requirements. Black Box method is used to test the app and expected to fulfill the expectation and meet the goal. The result of this paper is that the app shows android-based inspection and testing system for electrical safety can be recommended for faster and accurate repor

PROTOTYPE OF HOSPITAL WASTE MEASUREMENTS INTEGRATED BASED ON ISO 14001

One of the water pollution is wastewater that comes from hospitals. The surrounding community can suffer from this disease because hospital wastewater contains quite high organic compounds also contains other chemical compounds as well as pathogenic microorganisms. stabilize the pH. The levels of pH, TDS, and TSS can also be affected by the concentration of wastewater. The higher the dilution rate of the wastewater, the lower the pH, TDS, and TSS levels will also be higher. The results of the test with 4 different water media showed that the pH, TDS and TSS sensors were able to work well where in tap water and coffee showed normal results and stale tea water and betadine water is not normal. The pH, TDS, TSS sensors are able to detect normal water conditions in tap water and coffee with a pH value of 6.89 to 5.41 TDS 179.71 to 279.41 ppm and TSS 1.00 ntu to 16.00 ntu. pH, TDS, and TSS sensors are also able to detect abnormal water conditions in stale tea water and betadine water with a pH ranging from 4.24 – 4.56 TDS 246.11 ppm – 1129 ,54 ppm and TSS 7 ntu – 13 ntu. These values ​​are in accordance with the liquid waste quality standards that have been set in the regulation of the Minister of Health of the Republic of Indonesia number 7 of 2019 concerning hospital environmental healt

ESTIMATION OF SOFTWARE SIZE USING FUNCTION POINT ANALYSIS ON INVENTORY INFORMATION SYSTEMS

Indicators of good software development achievements are measured measurements on all aspects of software development, including the environment and systems of software. In this paper, indicators of the complexity of web-based software developed by the waterfall method with XML language-based entity database relations. This inventory information system functions as an integrated system with other systems in an integrated information system scope. Function point analysis (FPA) is used as a measuring device that can assess the complexity of components and functions of the software developed. The measurement results show that the overall value of the FPA is 180.83, which indicates that the application of inventory information systems is easy to use with low complexity. While the results of CFP and RCAF calculations also show that this application is quite simple so it is easy to use by various groups

Development of SpO2 Monitoring System for Early Stroke Detection

Within this paper, we will discuss about a development process of SpO2 monitoring system that will be used for detecting a patient in the early stage of stroke. This system will measure and compare the SpO2 from both right and left arm at the same time. Stroke patients who experience weakness in the muscles of the one hand can experience different values with hands that do not experience muscle weakness. Stroke patients who are hospitalized with an intravenous infusion in one arm can cause differences in SpO2 values between the right and left fingers. Therefore this measurement method held from that phenomenon. From the monitoring system design, the system should have two sensors to measure the blood saturation, a microcontroller to process the data, and a monitor, buzzer, and micro sd card module to store and display the data. The research shows that the system has been developed and can be used to measure patient’s SpO2 from both hands at the same time, an indicator that will rings when there is an error in the measurement, and a lcd display to show the measurement data. This system also has a microSD card writer to store the measurement data from time to time

DESIGN OF ECO GREEN WIND TURBIN USING FUZZY LOGIC ON SAHARA DESERT

In development of wind turbine, the government of Libya has assignment Libya electric co. To develop wind turbine in Sahara Desert beginning of 2001. The officer the took a surveying of wind speed and the environment of the Sahara Desert. The surveying has shown that wind speed of Sahara Desert is class  4 and 5. Therefore is suitable to develop wind turbine to produce electrical power for RL (Resistor Load). Based on the argument above, so this research entitled: “Analysis Of Eco Green Wind Turbine Design For Sahara Desert Using  Fuzzy Logic”. The objectives of this research are: to design and development of eco green vertical axis wind turbines (VAWT) in Sahara Desert, to analysis of suitable eco green vertical axis wind turbines (VAWT) in Sahara Desert using MATLAB and to analysis of how fuzzy logic use in wind turbine design. Research model used input process in Matlab simulation and output is the design and analysis of efficiency wind turbines

Analysis of the Carbon Emissions (Co2) Reduction in Waste Power Plants using Life Cycle Analysis

A Growth in energy demand Electricity in a city will show significant economic growth. Likewise, in the Libyan city of Sirte, economic growth per year is around 6% and with a population growth rate of around 2% per year, the city is struggling to get ahead. Thus, waste generated due to economic activities of the population also increased. While all the garbage is thrown away and not utilized. Separation of types of waste contributes to the economic potential for local governments to manage organized waste. In general, 37% of waste is disposed of in landfills, 8% of which are disposed of in organic form and put into sanitary machines that produce gas. While disposal to open areas around the world includes about 31% of waste with 19% recycled through composting and 11% burned at final disposal. The last recycled process, potentially has increased of CO emission in wasted power plant. To mitigate these situations, depth analysis of the procedure collection of the wasted power plant materials is proposed. In order to reduce carbon pollutant, life cycle analysis has been usage to measure the potential reduction of CO emission in Sirte City of Libya. The performance resuls shows that by using separation materials and life cycle analysis deployment has given significant contributions that able reducing CO emission of has reduced CO Emission. By supply of 1400 tons per day, it can be seen that the electricity production generated is 3.64 MJ which is 2.6% of the production generated from the total waste burned. With the resulting heat of 9.19 MJ, it is a total heat production of 3.7%. Of the emissions produced by the material, PVC contributed the largest contribution to pollution released from the incinerator by 57.7% compared to corrugated box / board which was only 15.2% and / or injection molding by 15.2%. By amounts of 1400 tons wasted assumption, the CO2 that can be generate based on LCA analysis is 2076.87 Kg, moreover, climate change index is equivalent to 3817.58 of CO2 (Kg). Ozon depletion has shown very wonderful grade as show -164.84, meaning that the release of CFCs into the air is significantly reduced. Low carbon index has been shown based on this results, LCA could perform best good treatment for wasted classification arranged with the LCA stage

Boost Buck Converter Based on Fuzzy Logic for Voltage Stabilizer

The wind turbine generator used for charging the battery produces an unstable electrical voltage, this is caused by the wind speed on the highway that varies. As a result of the instability of the electrical voltage, the energy storage charging process is not optimal. To deal with these problems, voltage stabilization is carried out using a boost buck converter to maximize the use of electrical energy generated from the wind turbine generator. This study discusses about a prototype voltage stabilizer for battery charging using a boost buck converter circuit. Implemented a comparison of two different techniques, including the application of fuzzy Mamdani logic control with PID using Ziegler-Nichols to minimize the value of settling time, percentage of overshoot, steady state error, and maximum voltage ripple. The results show that application of fuzzy Mamdani logic control is more effective than the application of PID using Ziegler-Nichols. In the study, it was found that the effectiveness of adding a charging circuit protection system and monitoring system did not exist in previous studies

Healthcare System for Elderly people in Indonesia

Now days, the home environment is still much less supportive of life for the elderly, most elderly living at home need a companion to help them. Safety, health, happiness and independence will be difficult for them to get even the elderly will be further away from the surrounding environment. Based on population projection 2017 data there are 23.66 million elderly people in Indonesia and predicted in 2020 there are 27.08 million people elderly. Smart homes that are currently widely studied have not focused on elderly; most smart homes only provide a sense of security and convenience for adult residents. And this will be a problem that until now has not solved the improvement of human life through technology to get happiness, care and health especially for the elderly. In many cases of the elderly, it is easier to send them to live in a nursing home and that keeps them separated from their families for the rest of their lives. That's what makes them less happiness. Orange Technology is a collection of technological elements to improve human life by getting happiness, Care and health. This study reviewed the journals of scientific databases such as IEEE explore, ACM digital library and Proquest published from 2002 to 2017. From the search results obtained 54 papers that will answer the scientific questions of this research. The result of this research is a framework of smart house that has Sensor, Monitoring, Wireless, Scalability, Low cost, GPS and ease of installation and maintenance as components of smart house of orange technology for elderl

A Case of Identity for NLMS and Kaczmarz Algorithms

In this paper, we will demonstrate, by employing basic linear algebra, that two seemingly disconnected algorithms, the Kaczmarz algorithm, familiar to mathematics community as an iterative solver of linear systems, and the Normalized LMS (NLMS) algorithm, known to the signal processing community as a self-learning adaptive filter, are identical