Alat Pengukur Getaran Berbasis Mikrokontroller Atmega 16 Menggunakan Sensor Microphone

Vibration is a back and forth motion around equilibrium. The equilibrium point is a state where an object is at rest if no force acting on the object. Vibration having amplitude (deviation farthest distance with the midpoint) of the same. An electric machine which can be produced the vibration, the use of the electric machine for a long time can lead to vibration effects berbada at the time of the engine in its normal condition. Vibration measurements on electrical machine can be made directly and indirectly (convert sound). Engine vibration measuring device uses a sensor microphone is based ATMega 16 merupkan vibration gauges indirectly. This tool converts the audio signal (sound) into electrical signals. Microcontroller as an analog signal converter into a digital thereof in the form of data and 16x2 character LCD as its output in the form of a value (number). From the test results based microcontroller vibration measuring device ATMega 16 using sensor microphone microphone sensor measurement results obtained by measuring the distance of less than 5 cm at 1700 rpm rotational speed measurement result measured by a device made of 323Hz and 66 dB at the microphone sensor readings A. While the sensor measurement microphone B scalable 512Hz and 68 dB. Measurements with conventional measuring instruments with an oscilloscope and a decibel meter measurements obtained at 453 Hz at the output of the sensor microphone A and 624 Hz is in coupling with an oscilloscope. While the measurement noise measured by a decibel meter measurement results obtained 68.9 dB. To measure the rotational speed 1700 rpm with a distance of more than 5 cm measurement obtained on the measurement results measured by a device made of 422Hz and 66 dB at the microphone sensor readings A. While the sensor measurement microphone and measured 528 Hz and 68 dB. Measurements with conventional measuring instruments with an oscilloscope and a decibel meter measurements obtained at 453 Hz at the output of the sensor microphone A and 624 Hz is in coupling with an oscilloscope. While the measurement noise measured by a decibel meter measurement results obtained 78.4 dB. Vibration measurements by using a sensor microphone that the closer the distance measurement and high motor speed the greater the error value is read by the tool, because the closer the object, the sensor readings with the greater noise generated as well.   Keywords: dB, vibration, LCD, and sensor mikrontroller microphone

RESIKO RADIKALISME MENYASAR KALANGAN REMAJA MELALUI MEDIA SOSIAL

The purpose of this Community Service (PKM) is to train the youth of the Kademangan village as an effort to prevent the entry of elements of radicalism ideology through social media. The use of social media is an activity that is said to be an effort to fill free time for teenagers, the time to use social media access can exceed the usual during the Large-Scale Social Restrictions (PSBB) because social media can be a medium and solution in interactions that become a modern lifestyle. This PKM uses a Mapping scheme for the use of social media, the level of understanding of radicalism, and efforts to socialize youth assistance. To measure the audience's understanding ability in implementing the extension strategy, the extension worker uses a questionnaire instrument. The results obtained are an increase in the use of social media among adolescents and an increase during PSBB, a low understanding of radicalism among adolescents, especially its harmful effects

Pengaruh Pemberlakuan Sistem Poin Pelanggaran Terhadap Kedisiplinan Siswa/Siswi SMK 59 Jakarta Selatan

Sekolah menjadi sarana untuk menumbuhkan karakter disiplin bagi siswa/siswi. Pembentukan karakter siswa/siswi menjadi bertanggung jawab dan disiplin tentu menjadi perhatian lingkungan keluarga. Penelitian ini bertujuan untuk mengetahui pengaruh pemberlakuan point pelanggaran di SMK 59 Jakarta Selatan. SMK 59 Jakarta Selatan menerapkan point pelanggaran untuk meningkatkan kedisiplinan siswa/siswi SMK 59 Jakarta Selatan. Point pelanggarann tersebut tentunya berdasarkan kesepakatan bersama antara pihak sekolah dengan orang tua siswa/siswi. Penelitian ini menggunakan metodologi penelitian kualitatif deskriptif dengan mengambil data menggunakan teknik observasi, wawancara, dan dokumentasi yang kemudian dianalisis menggunakan reduksi data, penyajian data, dan kesimpulan. Hasil dalam penelitian ini, pengaruh point pelanggaran memiliki dampak yang signifikan kepada siswa/siswi SMK 59 Jakarta Selatan dan memotivasi mereka untuk menjadi pribadi yang lebih baik. Selain itu, menumbuhkan rasa tanggungjawab dalam kehidupan sehari-hari

Optimizing process parameters and materials for the conversion of plastic waste into hydrogen

This study has investigated hydrogen production from waste plastics using pyrolysis, steam methane reforming, and water-gas-shift reactions modelled via Aspen Plus. After evaluating multiple alternatives, polypropylene (PP) was selected as the feedstock. The research has been focused on how reformer temperature, steam-to-fuel ratio (S/F), reformer pressure, and pyrolysis temperature impact syngas composition, heating values, syngas (H2/CO) ratios, and yields of hydrogen (H2), methane (CH4), and carbon dioxide (CO2). Key findings have indicated that raising reformer temperatures to around 1000°C maximizes hydrogen production in syngas, reaching peak levels of 2360 Nm3/Ton and 2525 Nm3/Ton for reformer temperature and steam-to-fuel ratio (S/F) ratios, respectively, via processes like steam methane reforming and the water-gas-shift reaction. Moreover, other parameters like steam-to-fuel (S/F) ratio and reformer pressure have produced the highest amount of hydrogen at 0.25 and 1 atm, respectively. Optimizing reformer temperature and steam-to-fuel ratio (S/F) have been selected as key in hydrogen production, with peak lower heating values (LHV) of 1.15 MJ/kg for temperature and 1.035 MJ/kg for S/F ratios, highlighting the importance of balancing these parameters for efficiency. Additionally, syngas' hydrogen (H2) composition increased with pyrolysis temperature, peaking at 8.5% at 700°C. Finally, this research has provided valuable insights into optimizing process parameters for sustainable hydrogen production. Moreover, the simulation process has provided cost-effective adjustments and informed decision-making for sustainable and scalable technologies, benefiting researchers, investors, engineers, and policymakers involved in innovative hydrogen generation

PENGEMBANGAN LEMBAR KERJA SISWA (LKS) DENGAN MODEL PEMBELAJARAN KOOPERATIF TIPE TEAM ASSISTED INDIVIDUALIZATION UNTUK MENINGKATKAN MINAT BELAJAR DAN HASIL BELAJAR SISWA

This research aims to develop student worksheets with team assisted individualization (TAI) cooperative learning models in Pythagoras Theorem materials. This research aims to find out the increased interest in learning and student learning outcomes. The method used in this study uses research and development (R & D) method with ADDIE (Analysis, Design, Development, Implementation, Evaluatio) design. The data collection techniques used in this study are questionnaires, validation sheets and study results tests. Instruments used are device validation sheets, student response questionnaires, student learning interest questionnaires and student learning outcomes. The data analysis technique used is qualitative data consisting of advice and comments from experts and qualitative data judging by the analysis of validity, practicality and effectiveness. The results showed that, learning devices were declared very valid with the average assessment results from experts 4.15, the student response questionnaire reached 73.81% which is intended in the positive category so that the developed LKS is declared practical, the student learning interest questionnaire reached 70.33% that is in the positive category as well as the results of students who reach an average of 81.66% that exist in the complete category

Covid-19 Vaccination Maternal Services for Pregnant Women in the Work Area of Telaga Community Health Centers

This study aims to provide an overview of how the covid-19 vaccination service for pregnant women in the work area of the Telaga Health Center. This study uses a qualitative method that focuses on ANC services with in-depth interview techniques, data analysis is carried out descriptively and presented in narrative form. This research was carried out in the working area of the Telaga Health Center from September 2021 to November 2022. The informants in this study were pregnant women in the Telaga Health Center working area as many as 7 participants and 2 key informants were the program coordinator midwives. With a snowball sampling technique. The results of the study found that there were 5 themes that described Covid-19 vaccination services for pregnant women, namely Socialization of Covid-19 Vaccination for pregnant women, Issue of KIPI for Covid-19 Vaccination, Supporting Factors for Successful Vaccination in Pregnant Women, Body Response of Pregnant Women after Covid-19 Vaccination. 19, and Covid-19 Vaccination Requirements for Pregnant Women. The mandatory output in this research is the publication of research results in one of the international journals

PENERAPAN TEKNOLOGI INFORMASI PROGRAM PELAYANAN KESEHATAN IBU DAN ANAK PADA PUSKESAMAS KECAMATAN MA’RANG DAN PUSKESMAS KECAMATAN SEGERI KABUPATEN PANGKEP SULAWESI SELATAN BERBASIS ANDROID

PENERAPAN TEKNOLOGI INFORMASI PROGRAM PELAYANAN KESEHATAN IBU DAN ANAK PADA PUSKESAMAS KECAMATAN MA’RANG DAN PUSKESMAS KECAMATAN SEGERI KABUPATEN PANGKEP SULAWESI SELATAN BERBASIS ANDROI

Online-Based New Student Admission Management at SMAN 2 Bulukumba

This thesis discusses online-based acceptance of new students at SMAN 2 Bulukumba which aims to 1) find out the planning for online-based acceptance of new students at SMAN 2 Bulukumba, 2) find out the implementation of online-based acceptance of new students at SMAN 2 Bulukumba, 3 ) find out the evaluation of online-based acceptance of new students at SMAN 2 Bulukumba, 4) find out what the inhibiting and supporting factors are in implementing online-based new student admissions management at SMAN 2 Bulukumba, 5) find out solutions to obstacles to online-based management of new student admissions at SMAN 2 Bulukumba.This research uses descriptive qualitative research. The data sources in this research are primary data sources and secondary data. Primary data sources consist of the Principal (Hj. Jusia, S.Pd., M.Sc.,), PPDB implementing committee (Akmal Sidik, S.Pd.I.,), PPDB Operator (Risman S.Pd., Student (Yuyun, Fitri, Dewa). Secondary data sources are sources of supporting data using data originating from previous research or other supporting documents that are relevant to the research. The results of research conducted at SMAN 2 Bulukumba found that planning in the online-based process of accepting new students was held at SMAN 2 Bulukumba, namely by forming a PPDB committee with various programs that had been determined for the implementation of new student admissions. new students, researchers can conclude that in accepting new students, schools must prepare carefully regarding the things that must be done in the PPDB process, as implemented at SMAN 2 Bulukumba which uses online registration and carries out socialization, by utilizing social media such as Facebook, Instagram, and WhatsApp, this was done considering the rapid development of information technology so that SMAN 2 Bulukumba decided to utilize information technology to implement PPDB. The obstacles were in the system and network. From this online acceptance of new students, there are several implications, including the education department, where the education department can increase the efficiency and effectiveness of the PPDB process, increase transparency and accountability, expand access to education, minimize the potential for fraud. Schools can simplify the process of accepting new students, improve the quality of student data, expand the reach of school promotions. Parents/Guardians of students can simplify the child registration process, increase access to information, increase transparency of the PPDB process