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PERENCANAAN PENAMBANGAN TAMBANG TERBUKA BATUBARA PADA PT. CARITAS ENERGI INDONESIA JOBSITE BATUBARA JAMBI LESTARI KABUPATEN MUARO JAMBI, PROVINSI JAMBI Pranajati, Andy; Ananda, Febri
Jurnal Rekayasa Lingkungan Vol. 23 No. 2 (2023)
Publisher : Institut Teknologi Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Indonesia merupakan salah satu negara tang mempunyai suatu cadangan batubara yang cukup besar. Seiring dengan berkembangnya zaman penggunaan bahan bakar fosil seperti minyak bumi dan gas bumi yang semakin besar sehingga mengakibatkan berkurang pasokan minyak bumi maupun gas. Adapun alternatif lain yang dapat digunakan sebagai pengganti minyak bumi dan gas adalah batubara. Permodelan lapisan batubara yang telah dilakukan, menghasilkan satu seam batubara dengan ketebalan 0,2 m- 5,90 m. Pit limit dirancang dengan stripping ratio (SR) sebesar 4, dari elevasi RL +50 sampai RL +10, dengan luas pit sebesar 2,3 Ha. Cadangan tertambang sebesar 342.889,69 MT dengan volume overburden 1.493.802,27 BCM. Rancangan pit di design dengan Kemiringan lereng tunggal (single slope) pada highwall adalah 550, sedangkan untuk lereng keseluruhan (overall slope) sebesar 450 untuk, bagian lowwall 35°, dan untuk sidewall jenjang tunggal 55° dan jenjang keseluruhan 45°. Target produksi yang dipenuhi selama 3 bulan (April-Juni) sebesar 85.000 MT dengan overburden 340.000 BCM. Overburden yang telah dikupas akan ditumpuk pada daerah disposal dengan kapasitas sebesar 330.000 BCM dari elevasi RL +45- RL +70 dengan tinggi disposal 25 meter. Tempat penumpukan batubara memiliki kapasita 40.000 MT. Geometri jalan yang dirancang untuk menunjang pengangkutan material dengan lebar jalan lurus 8 m dan lebar jalan pada tikungan sebesar 13 m. Pada proses penggalian dan pengangkutan coal dan overburden menggunakan alat mekanis excavator 5 unit, Scania P380 15 unit, Mercy Actross 6 unit, dan alat support berupa bulldozer 3 unit, motor grader 1 unit, compactor 1 unit, dan excavator PC 200 1 unit.
Android-based learning media development with iSpring Suite application in pastry course Ananda, Febri; Elida, Elida; Kasmita, Kasmita; Irfan, Dedy
Jurnal Pendidikan Vokasi Vol. 13 No. 3 (2023): November
Publisher : ADGVI & Graduate School of Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jpv.v13i3.66941

Abstract

The utilization of Information and Communication Technology (ICT) is one of the things needed in the education era for effective learning. This study aims to produce Android application-based media using iSpring Suite in feasible pastry courses based on the values and tests of validity, practicality, and effectiveness. The development research used the 4D model (Define, Design, Develop, and Disseminate). The limited trial of Android application media was conducted on 30 Department of Family Welfare Science, Concentration of Catering students at Universitas Negeri Padang who were taking pastry courses. Data collection instruments used validation sheets, evaluation questions, and student response questionnaires. The data obtained were analyzed descriptively and quantitatively. The results showed that the validation value of the material expert was 0.758 with the valid category, and the validation of the media expert was 0.833 with the valid category. The practicality value gets a score of 3.06 with a practical category. The effectiveness value is obtained from the evaluation results of the control class and the experimental class. Hypothesis testing was carried out using the t-test with the Independent Samples Test method. The t-test results show the t-count value (12.0228) > t-table (2.0167), so Ho is accepted. This means there is a difference in the value of the control and experimental classes. The effect size calculation obtained a value of 3.13, so based on the applicable criteria, this effect size value is included in the very high category. Based on these results, the application-based learning media using iSpring Suite is declared feasible based on validity, practicality, and effectiveness as a learning media.
Development of Student Work Sheet (LKPD) Based on Indonesian Realistic Mathematics Education (PMRI) On the Subject Subject Area of Surface Building Side Rooms for Students of SMP Amayatul Huda T.P 2021/2022 Ananda, Febri; Elfrianto, Elfrianto
Holistic Science Vol. 3 No. 1 (2023): Jurnal Nasional Holistic Science
Publisher : Lembaga Riset Mutiara Akbar NOMOR AHU-0003295.AH.01.07 TAHUN 2021

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56495/hs.v3i1.329

Abstract

This research is a research on the development of Student Worksheets (LKPD) based on Indonesian Realistic Mathematics Education (PMRI) on the subject of curved side shapes. This study aims to 1) describe the product quality of Student Worksheets (LKPD) based on Indonesian Realistic Mathematics Education (PMRI) on the subject of curved side shapes. 2) describe the results of the development of Student Worksheets (LKPD) based on Indonesian Realistic Mathematics Education (PMRI) on the subject of curved side spaces. In this study, researchers used research and development procedures according to Sugiyono which have been modified. The subjects of this study were students of class IX at SMP Amayatul Huda, Kec. Medan, Deli Kel. Labuhan Deli. The object in this research is the Student Worksheet (LKPD) which was developed by the researcher. The data collection technique used is the results of validation and interview results related to student responses regarding the use of Student Worksheets (LKPD) products. The development procedures in this study include: (1) potentials and problems; (2) Data collection; (3) Product design; (4) Design validation; (5) Design revision; (6) Product trials. The product validation results for Student Worksheets (LKPD) developed by researchers were 3.9 and 4.2 and were included in the good category. The Student Worksheet (LKPD) which was developed by the researcher received a positive response from class IX students at SMP Amayatul Huda.
PENDAMPINGAN PENCATATAN KEUANGAN SEDERHANABAGI UMKM DI DESA TEMBELING Hasnarika, Hasnarika; Afriyadi, Afriyadi; Fauzi, Fauzi; Vilvany, Adella; Ananda, Febri
Community Development Journal : Jurnal Pengabdian Masyarakat Vol. 5 No. 6 (2024): Vol. 5 No. 6 Tahun 2024
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/cdj.v5i6.40827

Abstract

Pendampingan pencatatan keuangan sederhana bagi Usaha Mikro, Kecil, dan Menengah (UMKM) diDesa Tembeling merupakan sebuah upaya untuk membantu UMKM dalam mengelola dan mencatat keuangan mereka dengan lebih efektif. Penelitian ini bertujuan untuk mengidentifikasi masalah yang dihadapi oleh UMKM dalam pencatatan keuangan mereka, serta menyediakan pendampingan dan solusi yang sederhana namun efektif. Metode yang digunakan dalam penelitian ini adalah wawancara dengan pemilik UMKM dan Observasi langsung. Hasil penelitian menunjukkan bahwa sebagian besar UMKM di Desa Tembeling menghadapi kesulitan dalam mencatat keuangan mereka dengan benar dan teratur. Beberapa masalah yang diidentifikasi meliputi kurangnya pengetahuan dan keterampilan dalam pencatatan keuangan, kurangnya waktu dan sumber daya untuk mengelola adminstrasi keuangan, serta kurangnya pemahaman tentang pentingnya pencatatan keungan yang baik. Sebagai solusi pendampingan pencatatan keuangan sederhana diberikan kepada UMKM. Pendampingan ini meliputi pelatihan dasar tentang pencatatan keuangan laporan keuangan serta bimbingan dalam menginterprestasikan dan menganalisis laporan keuangan.