scholarly journals The arduino based prototype of handsanitizer tool and automatic mask feeder

2021 ◽  
Vol 3 (2) ◽  
pp. 45-50
Author(s):  
Syahrial Syahrial ◽  
Muhammad Fajrin S ◽  
Yusuf Syani

The purpose of this research is to design and construct  a prototype of an Arduino-based automatic handsanitizer and mask feeder. The research method was carried out by laboratory experiments. The experimental stages consisted of designing hardware (hadware), software (software) and testing the whole tool. The test results showed that  ultrasonic sensor and dispencer can detect at a distance of 5 cm. The Arduino dc motor test that  given high and low logic for the direction of each clockwise and counter clockwise motor resulted in an output voltage of 5.09V. Overall the tool testing went well. Regarding to the results, it can be concluded that the tools can be on of the options to reduce the spread of COVID-19 in the Jakarta State University academic community, especially the laboratories within the Jakarta State University.    

INFO-TEKNIK ◽  
2018 ◽  
Vol 19 (2) ◽  
pp. 243
Author(s):  
Idzani Muttaqin

The progress of science and technology from time to time is growing rapidly. Iftraced back, first all activities are done manually. Along with technologicaldevelopments, some activities have been converted into an automated system.Like to open a door that requires human labor, now has many doors that can beautomatically opened when there is someone who will enter. But there are fewobstacles, whereas when someone is running quickly it must wait for the door toopen automatically which causes the person to stop first and wait for the door toopen. In this Final Project, ultrasonic sensor (PING) is used to measure visitordistance. Dc motor is used to set the speed of opening the door. The prototype ofautomatic sliding door is controlled using arduino microcontroller. Test resultsshow that the door will open when visitors are in front of the door measured withultrasonic sensor (PING). After the tool testing, the maximum load of the doorthat can be moved by the tool is less than 15 kg. The time it takes the automaticsliding door to close with the maximum load is 3.12 seconds.


2019 ◽  
Vol 1 (4) ◽  
pp. 1916-1932
Author(s):  
Annisa Rysdi Edfa ◽  
Sany Dwita

This study aims to examine the effect of investment information and overconfidence in the commitment escalation. The population in this study were students of the Master Program in the Faculty of Economics, Padang State University. A total of 64 people agreed in this study. The hypothesis of this study is managers who experience negative investment information will tend to escalate commitments than managers who receive positive investment information managers with overconfidence will tend to escalate commitments than managers with underconfidence. Laboratory experiments with a 2 x 2 factorial design were carried out. 64 MM and MPdE students—as proxies of project managers—participate in an experiment. One-way ANOVA is used at Hypothesis test. Results that showed significant investment information on the escalation of commitments with a significance value of the One Way ANOVA analysis test of 0.00 <0.05. Overconfidence does not affect managers' decisions in escalating commitments in this study. The significance value of the One Way ANOVA analysis test was 0.74> 0.05.


EDUDEENA ◽  
2017 ◽  
Vol 1 (1) ◽  
Author(s):  
Agus Miftakus Surur

Researchers chose a modified free inquiry model to help improve students’ fluency and elaboration. The purpose of this research is to know the application of modified free inquiry which can improve the student’s fluency and elaboration of students’ thinking on trigonometric material. Research method in this research is qualitative research method and research type is research of class action. The data in this study were obtained from the results of validation, test results, observation of teacher and student activity, and interview result, then apply data triangulation and theory to check the validity of data. The results showed an increase in fluency and elaboration in students. This means that a modified free inquiry model can help improve students’ fluency and elaboration in trigonometric learning. The results are supported by the observation of teacher and student activity that is in accordance with the lesson plan and also the result of the interview which get positive response from the students.Keywords: modified free inquiry, fluency and elaboration, mathematics


2019 ◽  
Vol 4 (2) ◽  
pp. 176-183
Author(s):  
Ponco Wali

Testing repeat electronic scales with non-automatic scales technical requirements so far is fairly long if not using a calculator or computer. The aim of this research is to compare the repeatability testing method of electronic scales using methods according to the technical requirements of non-automatic scales and the Australian NMI method, both of which refer to OIML R76 in determining the validity or cancellation of electronic scales repeatability testing. This research method is done through repeat testing on 3 samples of electronic scales, then on each electronic scale 2 test methods are performed. The conclusion is that the electronic scales repeatability testing uses the non-automatic scales technical requirements method and the Australian NMI method has some differences although both refer to OIML R76. These differences include several points, namely the charge used, the method of adding additions, the formula for determining electronic scales, and different test results. The Australian NMI method is deemed to make it easier and more time efficient compared to the non-automatic weighing technical requirements method.


2012 ◽  
Vol 562-564 ◽  
pp. 1496-1500
Author(s):  
Qiang Li ◽  
Wei Chen ◽  
Ren He

To investigate the accuracy of modeling DC motor, the platform for measurement and calculation dynamic parameters is built by the Hardware-In-the-Loop(HIL) method based on dSPACE system. The running state of DC motor has to be changed with adjustment of PWM duty-cycle using ControlDesk software. Having got measurement and calculation parameters value of DC motor, we compare the test results with simulation value using the model of DC motor with cascade control in Matlab/Simulink software according to the classical mathematical model. It confirms the established model of DC motor accurately and reliability using new parameters, which provides the basis of more complex control algorithms and also indicates that the feasibility and generalization application value of measurement and calculation method for DC motor.


2020 ◽  
Vol 20 (3) ◽  
pp. 919
Author(s):  
Anju Galingging ◽  
Fery Xaverius Aritonang ◽  
Herlina Novita

The purpose of this study is to determine and analyze the effect of Liquidity, Leverage, Activity, and Profitability on Firm Value in the Consumer Goods Sector Listed on the Indonesia Stock Exchange for the period 2015-2018. This study uses a quantitative method with a desciptive type. The population of this study is the Consumer Goods Sector that is listed on the Indonesia Stock Exchange for the 2015-2018 period, as many as 50 companies. Sampling using purposive sampling and obtained a research sample of 60 samples from 15 sectors of consumer goods multiplied by 4 years. This research method uses multiple linear regression. The coefficient test results obtained from the Adjusted R Square value are 3.7%, which means that the variation in the Firm Value variable described by the independent variable is 96.3%. The research results simultaneously show that liquidity, leverage, activity, and profitability have no effect on firm value. Meanwhile, partially it shows that liquidity, leverage, and profitability have no and insignificant effect on firm value, but for the activity variable has a significant effect on firm value.


Author(s):  
Moh. Hatta ◽  
Swardi Lubis Lubis ◽  
Marlina Marlina

This study aims to reveal the extent of openness of communication carried out among students of the Da'wah Faculty and UINSU communication and its impact on worship activities carried out by these students. Observations and interviews are techniques used to collect data in this study. Triangulation analysis method is also used to analyze the data obtained from respondents, descriptive analysis research method applied in this study. From 30 respondents taken with a percentage of 20 female respondents and 10 male respondents it was found that social media activities through Facebook had a special attraction and increased their confidence in communication. The impact felt by the respondents was more to the shift in the discipline of worship that they did when cool communicating with their virtual friends, recitations of the Koran that are usually done before prayer time arrives multiplied by the fun they are chatting, status updates or just looking at their Facebook wall.


2020 ◽  
Vol 47 (5) ◽  
pp. 413-428
Author(s):  
Olga G. Smolyaninova ◽  
◽  
Vera V. Korshunova ◽  
Olga O. Andronnikova ◽  
◽  
...  

Introduction. The relevance of the study is due to the lack of trained teachers - heads of school mediation services and future mediators. Reducing the deficit is possible only through increasing the competence of teachers in the field of conflict resolution and the formation of the ability and readiness to use mediation practices aimed at creating a conflict-free educational environment and harmonizing interethnic relations in a multicultural educational space. The authors presented a component-wise model of the formation of mediated competence of participants in the educational process from among the heads of school mediation services and future mediators and tested it. Materials and methods. The study used methods of measuring the components of mediation competence: communicative, information-analytical, organizational and managerial, emotional. The study involved two groups: students of the professional retraining program “Mediation. Psychology of Conflict Management ”55 people (experimental group) and 60 people (control group), teachers who are not trained in mediation programs. Comparative analysis of groups was carried out using the U-Mann-Whitney test. Results. Analysis of the effectiveness of the formation of mediation competence showed significant differences (p <0.05) on a number of scales that affect the effectiveness of the formation of components of mediation competence. Significant changes (p <0.05) were revealed in terms of the parameters of the severity of communicative skills, which indicates the formation of a confident partner style of behavior. Changes in the components of emotional competence are significant: emotional awareness (p = 0, 002), emotion management (p = 0, 045), recognition of other people's emotions (p = 0.021). There is a significant difference in the formation of information and analytical competence (p <0.05), primarily in the parameter of motivation (p = 0.000) of using mediation practices to resolve conflicts. Conclusion. It was revealed that the formation of the mediation competence of participants in the educational space of the Krasnoyarsk Territory can go through professional retraining programs and will be effective when combining the efforts of the academic community and practicing mediators, professional mediator communities and the cooperation of resources of various Siberian universities.


Author(s):  
Ayu Trisna ◽  
Riyah Shibha Nasution

The aim of this study is to develop macromedia flash as a learning media for teaching speaking materials for students. Research and Development is used as the research method. Research Procedures are modified into four steps, they are: evaluation and need analysis, media design, validation and revision, and final production. The product has validated by expert validation. The expert is an English lecturer of English literature Department, State University of Medan which approved by Faculty of Languages and Arts. The instrument for collecting data is by using questionnaire. The data are analyzed by descriptive technique. The result shows that macromedia flash is advisability to use with the total assessment by expert validations is 91 (Good). With the result that macromedia flash is good and eligible to use for teaching speaking for students.


2019 ◽  
Vol 6 (2) ◽  
pp. 125-132
Author(s):  
Elia Firda Mufidah

Street children are still a problem that needs to be moved. There are still many street children who drop out of school and do not understand what is related to the work taken. Game-based tutoring is in accordance with guiding principles and games so that children can be interested in joining this service. This research method uses pretest-posttest one group pre-experimental design. This study aims to find out how to use this program. This program aims to increase awareness. The Wilcoxon Career Awareness Test Results were obtained by Asymp. Sig = 0.043. Asymp comparison. Sig = 0.043 <α = 0.05 then Ho is accepted and H1 is rejected. Associated with a significant priority on the career awareness scores of street children before the implementation of assistance based on street children's awareness planning. The results of this study are increased career awareness of street children


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