Articles
Model and Analysis of Photovoltaic Modules with Irradiation and Temperature Variations using Simulation Technology: Model dan Analisis Modul Photovoltaic dengan Variasi Iradiasi dan Temperatur menggunakan Teknologi Simulasi
Rahmaniar, Rahmaniar;
Khairul, Khairul;
Junaidi, Agus;
Sari, Debby Kaumala
Procedia of Engineering and Life Science Vol. 4 (2023): Proceedings of the 6th Seminar Nasional Sains 2023
Publisher : Universitas Muhammadiyah Sidoarjo
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DOI: 10.21070/pels.v4i0.1386
This article discusses the modeling and analysis of Photovoltaic (PV) modules with irradiation and temperature variations using simulation technology. Modeling is carried out on solar modules through the p-n junction principle, a PV module model with temperature independence of photocurrent sources, diode saturation currents, and series resistances based on the Shockley diode equation. The photovoltaic process of solar radiation, PV cells convert a portion of the photovoltaic potential directly into electricity with I-V and P-V output characteristics. Electromagnetic radiation from the sun's energy is converted into electricity through the photovoltaic effect. The photovoltaic module simulation process with Matlab/Simulink, is carried out to observe the performance through the I-V and P-V characteristics of the solar module. The model, which is developed in a user-friendly manner using the Simulink block, shows the results of the PV characteristics when irradiation increases, the output current increases and the output voltage also increases. This results in a net increase in power output with increased irradiation at constant temperature.
Penerapan Model Kooperatif Tipe VAK terhadap Kemampuan Pemahaman Konsep Matematika
Rahmaniar, Rahmaniar;
Nursakiah, Nursakiah;
Quraisy, Andi
Proximal: Jurnal Penelitian Matematika dan Pendidikan Matematika Vol. 7 No. 1 (2024): Sustainable Development Goal in Mathematics and Mathematics Education
Publisher : Universitas Cokroaminoto Palopo
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DOI: 10.30605/proximal.v7i1.3135
Penelitian ini bertujuan untuk mengetahui pengaruh pemahaman konsep matematika dengan menerapkan model Kooperatif tipe Vizualization, Auditory And Kinestetic (VAK) siswa kelas X MIPA 6 SMA Kartika XX-1 Makassar. Jenis penelitian yang digunakan adalah pre-experimental design dengan one-group pretest-posttest design. Pengambilan sampel dilakukan dengan Simple Randoml Sampling. Adapun kelas sampel terdiri dari 33 orang. Pengumpulan data dilakukan dengan metode tes, lembar observasi aktivitas siswa dan lembar angket respon siswa. Pokok bahasan yang digunakan dalam penelitian ini adalah materi sistem persamaan linier tiga variabel. Data yang diperoleh dianalisis dengan menggunakan statistik deskriptif dan inferensial. Analisis deskriptif menunjukkan bahwa rata-rata skor hasil posttest siswa setelah diterapkan model pembelajaran kooperatif Tipe VAK sebesar 84,48 sebesar 84,48 dari skor nilai ideal yang diperoleh siswa yaitu 100 dengan variansi sebesar 56,63 dan standar deviasi sebesar 7,52. Adapun skor tertinggi yaitu sebesar 98 dan skor terendah sebesar 70 dengan rentang skor yaitu 28. Berdasarkan hasil analisis statistik inferensial terdapat perbedaan rata-rata antara pretest dan posttest. Dengan skor pretest 22,15 dan rata-rata skor posttest 84,48, pemahaman konsep matematika siswa meningkat setelah menerapkan model kooperatif Tipe VAK. Oleh karena itu, berdasarkan hasil analisis di atas, pembelajaran matematika dengan menerapkan model kooperatif Tipe VAK akan meningkatkan pemahaman konsep matematika siswa kelas X MIPA 6 SMA Kartika XX-1.
EMERGENCY REPORTING SYSTEM (ERS) UNTUK KASUS KRIMINALITAS PADA POLRESTABES KOTA MAKASSAR
Rahmaniar, Rahmaniar;
Arda, Abdul Latief;
Yuyun, Yuyun
Jurnal Teknoinfo Vol 18, No 2 (2024): Juli 2024
Publisher : Universitas Teknokrat Indonesia
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DOI: 10.33365/jti.v18i2.4048
This study aims to implement Google Maps API technology and the Havershine algorithm in the Emergency Reporting System (ERS) application at the Polrestabes Makassar, where this system runs on Android with quick access for user using the buttons on the screen and the volume up button. System development in this application uses the waterfall method with the UML (Unified Modeling Language) design language. Meanwhile, software using JAVA, PHP, HTML, CSS, Java script and MySql is used for database management. Data collection was obtained through observation, interviews and literature study. Based on the results of testing by 18 respondents consisting of 12 members of the public or reporters and 6 officers, it was found that the average percentage of respondents' scores for questionnaire questions was 82.5% with a Cronbach's Alpha value of 0.73. It can be concluded that the emergency reporting system application is considered very reliable. Testing this application using a button on the application screen ran smoothly on the first try with the average time the victim pressed the button to record less than 1 second or 0.64 seconds and the time it took for a message to reach the helper or police officer was 11.66 seconds. Testing the emergency notification application using the volume up (+) button on the device completed smoothly in 1.55 trials with the average time between the victim pressing the volume button and recording being 5.00 seconds and the time until the rescue team arrived was 14.00 seconds. This time includes the time required to set the maximum volume and activate the device screen. The percentage of correspondence between the accurate location points of the reporter and the recipient of the report using the Google Maps API with the Havershine algorithm to determine the relevant police station based on the closest distance is approximately 75% accurate on average with a distance difference of approximately 45.5 meters.
Optimalisasi Sistem Penagihan Air untuk Pelanggan Menunggak di PDAM Tirta Daroy Kota Banda Aceh
Rahmaniar, Rahmaniar
EKALAYA : Jurnal Ekonomi Akuntansi Vol. 1 No. 4 (2023): Ekalaya : Jurnal Ekonomi Akuntansi
Publisher : CV. Kalimasada Group
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DOI: 10.59966/ekalaya.v1i4.1104
Many people already use PDAM Tirta Daroy water and many customers are often in arrears in payments due to the postpaid nature of the water payments. Some customers from PDAM Tirta Daroy had to have their water flow cut off because there were many unpaid arrears. Disconnection of meters or water flow is not carried out suddenly but through notification of arrears to customers. The purpose of this research is to determine the collection system for water account receivables that are in arrears at PDAM Tirta Daroy, Banda Aceh City. This research was carried out at the PDAM Tirta Daroy office, Teuku Nyak Arief Branch, Banda Aceh City. This research used qualitative methods and field research. The research results show that the procedures for collecting water account receivables at PDAM Tirta Daroy Teuku Nyak Arief Branch have been carried out in accordance with established work procedures, through the following stages (a) issuing a warning letter. (b) implementation of billing (c) issuance and implementation of termination letters and (d) cutting off water flow. Customers who are in arrears in paying their water bills for 3 (three) months and have received a warning letter, but have not yet made the payment, will experience their water flow being cut off by PDAM Tirta Daroy Banda Aceh technical officers
ANALISIS KLASIFIKASI MODEL PEMILIHAN LOKASI PERUMAHAN DALAM MENINGKATKAN STRATEGI MANAJEMEN PENJUALAN MENGGUNAKAN MODEL K-NEAREST NEIGHBOR
Rahmaniar, Rahmaniar
Sisfo: Jurnal Ilmiah Sistem Informasi Vol. 7 No. 2 (2023): Sisfo: Jurnal Ilmiah Sistem Informasi, Oktober 2023
Publisher : Universitas Malikussaleh
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DOI: 10.29103/sisfo.v7i2.15373
Analisis pemilihan penentuan klasifikasi model pemilihan lokasi perumahan merupakan salah satu peneltiian yang penting dalam menentukan klasifikasi model pemilihan lokasi perumahan dalam meningkatkan strategi manajemen penjualan menggunakan model K-Nearest Neighbor. Tujuan penelitian ini dapat membantu strategi penjualan dalam memberikan gambaran pada calon pembeli rumah dan lokasi sesuai dengan preferensi dan kriteria. selanjutnya proses Klasifikasi pemilihan lokasi perumahan yang bertujuan untuk menentukan lokasi yang paling sesuai untuk membangun perumahan berdasarkan beberapa kriteria, seperti ketersediaan lahan, aksesibilitas, kelayakan lingkungan, dan preferensi konsumen. adapun langkah-langkah dalam penelitian ini berupa pengumpulan data, analisis kriteria dan hasil peringkat klasifikasi dan proses pengolahan analisis pemilihan lokasi perumahan dalam meningkatkan strategi manajemen penjualan menggunakan model K-Nearest Neighbor untuk mendapatkan hasil peringkat yang layak untuk dijadikan perumahan. hasil penelitian dari klasifikasi model KNNĀ dapat membantu para pengembang / calon pembeli dalam memilih lokasi perumahan dalam merencanakan dan mengimplementasikan proyek-proyek perumahan yang efisien, efektif, dan berkelanjutan.
Menumbuhkan Jiwa Kewirausahaan dan Kreativitas Ibu-ibu PKK Melalui Pengolahan Limbah Botol Plastik Menjadi Bernilai Ekonomi di Desa Payapuenteut Kota Lhokseumawe
AR, Khairina;
Rahmaniar, Rahmaniar;
Nurlela, Nurlela;
Jummaini, Jummaini;
Rasyimah, Rasyimah
Jurnal Malikussaleh Mengabdi Vol. 3 No. 1 (2024): Jurnal Malikussaleh Mengabdi, April 2024
Publisher : LPPM Universitas Malikussaleh
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DOI: 10.29103/jmm.v3i1.17670
Tujuan dari kegiatan pengabdian masyarakat ini adalah untuk meningkatkan jiwa kewirausahaan dan kreativitas melalui pengolahan limbah botol plastik menjadi barang yang bernilai ekonomi. Hal ini dilakukan karena limbah rumah tangga, terutama plastik, sangat sulit terurai sehingga mengakibatkan kualitas lingkungan menjadi buruk. Program pengabdian ini dilaksanakan di Desa Payapuenteut, Kota Lhokseumawe. Metode pelaksanaan kegiatan ini meliputi pemaparan materi, pelatihan praktik, dan evaluasi hasil. Pada tahap awal, pemaparan materi dilakukan untuk memberikan pemahaman mengenai dampak negatif limbah plastik terhadap lingkungan dan potensi ekonomi dari pengolahan limbah plastik. Selanjutnya, dilakukan pelatihan praktik di mana peserta, terutama ibu-ibu PKK, diajarkan cara-cara mengolah limbah botol plastik menjadi produk kerajinan tangan yang memiliki nilai jual. Pelatihan ini mencakup berbagai teknik pengolahan dan pembuatan produk seperti vas bunga, bunga hias, dan hiasan rumah. Evaluasi dilakukan untuk menilai pemahaman dan keterampilan peserta dalam mengolah limbah plastik. Hasil kegiatan pengabdian menunjukkan bahwa ibu-ibu PKK mampu memanfaatkan limbah anorganik dari rumah tangga menjadi kerajinan tangan yang memiliki nilai ekonomi. Selain itu, kegiatan ini juga berhasil meningkatkan kesadaran masyarakat tentang pentingnya pengelolaan limbah plastik yang baik dan benar. Dengan demikian, program ini diharapkan dapat berkontribusi dalam mengurangi pencemaran lingkungan sekaligus meningkatkan perekonomian masyarakat setempat melalui kewirausahaan dan kreativitas dalam pengolahan limbah plastik.
Pengaruh Motivasi dan Independensi Auditor Terhadap Kinerja Auditor
Mariana, Mariana;
Rahmaniar, Rahmaniar
HEI EMA : Jurnal Riset Hukum, Ekonomi Islam, Ekonomi, Manajemen dan Akuntansi Vol. 1 No. 2 (2022): Juli
Publisher : Prodi Hukum Ekonomi Syariah, STI Syariah AL-Hilal SIgli
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DOI: 10.61393/heiema.v1i2.74
The purpose of this study was to determine the effect of motivation and auditor independence on auditor performance at the inspectorate in the Aceh region. The data analysis method in this study uses multiple linear regression to predict the effect of the independent variables. The data analysis method in this study uses multiple linear regression to predict the effect of the independent variables. The population in this study were all auditors, namely 23 District/City Inspectorates in Aceh Province, from which 64 samples were obtained. The results of the study indicate that motivation affects auditor performance, this shows that there is encouragement from individual auditors that can increase the level of aspiration of quality audit urgency, toughness, tenacity, and consistency. Auditor independence affects the performance of the auditor, this shows that the auditor has an independent attitude that can improve performance. Independently hired auditors to act.
Pengaruh Capital Expenditure dan Cash Holding terhadap Perataaan Laba
Rahmaniar, Rahmaniar
HEI EMA : Jurnal Riset Hukum, Ekonomi Islam, Ekonomi, Manajemen dan Akuntansi Vol. 2 No. 1 (2023): Januari
Publisher : Prodi Hukum Ekonomi Syariah, STI Syariah AL-Hilal SIgli
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DOI: 10.61393/heiema.v2i1.98
This study aimed to determine the effect of capital expenditure and cash holding on earnings smoothing in manufacturing companies listed on the Indonesia Stock Exchange know 2016 to 2021. The data analysis method in this study uses multiple linear regression to predict the effect of independent variables. The population in this study are manufacturing companies listed on the Indonesia Stock Exchange from 2016 to 2021. The sampling method in this study was the purposive sampling method. The results showed that capital expenditure affects earnings smoothing. This proves that adding fixed assets, as capital expenditure indicates, increases profits. Suppose the increase in capital expenditure will increase the profit level significantly. Cash holding affects earnings smoothing. This proves that the higher the cash holding or, the higher the cash in the company, the higher the earnings smoothing.
PEMANFAATAN TEKNOLOGI INFORMASI DAN PENERAPAN PENGENDALIAN INTERN KAS
Rahmaniar, Rahmaniar;
Khairita. H
HEI EMA : Jurnal Riset Hukum, Ekonomi Islam, Ekonomi, Manajemen dan Akuntansi Vol. 2 No. 2 (2023): Juli
Publisher : Prodi Hukum Ekonomi Syariah, STI Syariah AL-Hilal SIgli
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DOI: 10.61393/heiema.v2i2.173
Internal cash control is a control process to achieve specific goals. Internal control is carried out by people from each organization, including management and all employees. Internal control is expected to provide reasonable assurance to managers and employees in an organization. The data analysis method in this study uses simple linear regression to predict the effect of independent variables. The population in this study amounted to 100 employees in the Aceh SKPD. The results showed that the use of information technology affected the implementation of internal cash control. However, it indicates that information technology can play an essential role in the performance of internal cash control in the Regional Work Unit (SKPD). By utilizing information technology, SKPD can improve efficiency and effectiveness in controlling and managing cash internally, such as identifying potential fraud or weaknesses in the cash control system, monitoring financial transactions in real-time, and making more accurate and transparent financial reports.
PENUNDAAN PEMBAYARAN UPAH PEKERJA
Ramadana, Sri Winarsih;
Rahmaniar, Rahmaniar
HEI EMA : Jurnal Riset Hukum, Ekonomi Islam, Ekonomi, Manajemen dan Akuntansi Vol. 2 No. 2 (2023): Juli
Publisher : Prodi Hukum Ekonomi Syariah, STI Syariah AL-Hilal SIgli
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DOI: 10.61393/heiema.v2i2.182
Delays in the payment of wages can occur in several situations, for example, when the shop owner is experiencing financial problems or when events disrupt the grocery store's operation. However, delaying the payment of wages without a valid reason and the employees' consent may violate labor laws. It may negatively affect the relationship between the grocery store owner and the employees. Suppose a grocery store is experiencing financial problems and cannot pay wages on time. In that case, it should clearly and transparently inform employees of the situation and provide assurances that wages will be delivered as soon as possible. Grocery stores must also make efforts to find appropriate solutions, such as finding funding sources or carrying out financial restructuring to pay employee wages on time. The research aims to look at the practice of delaying the payment of workers' salaries in Sigli City. The research method that the author uses in this research is descriptive analysis, with the research approach used in this research being qualitative. The results showed that the Cahaya Family grocery store never experienced delays in salary payments. Still, there were also delays in salary payments because there were workers who were allowed to go home during the day. Only at H. Nurdin's grocery store where the salary payment was late, and the reason for the transaction needed to be explained in detail.