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All Journal STEAM Engineering : Journal of Science, Technology, Education And Mechanical Engineering Jurnal Ilmiah Kanderang Tingang
Sri Murwantini
Universitas Palangka Raya
Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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Kajian Penyimpanan Data Pada Media Citra (Steganografi) Menggunakan Metode DCT (Discrete Cosine Transform) Sri Murwantini
Jurnal Ilmiah Kanderang Tingang Vol 3 No 2 (2012): Jurnal Ilmiah Kanderang Tingang
Publisher : FKIP Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (587.82 KB)

Abstract

Steganografi merupakan teknik menyembunyikan informasi digital dibalik informasi digital lainnya sehingga informasi digital yang sesungguhnya tidak kelihatan. Metode steganografi yang digunakan adalah DCT (Discrete Cosine Transform) untuk menyisipkan pesan rahasia. Citra yang telah disisipi pesan disebut citra stego. Pengolahan citra berupa kompresi pada citra stego untuk menguji ketahanannya.Penggunaan steganografi dengan metode DCT mempunyai keuntungan yaitu dapat menggunakan citra terkompresi JPEG. Citra yang telah dinormalisasi menjadi 256x256 piksel dipilih sebagai medium stego. Kemudian setelah disisipi pesan ditentukan nilai D (distance) yaitu perbedaan nilai koefisien dari 2 lokasi piksel yang dipilih untuk penyisipan. Setelah itu pesan rahasia kembali disisipkan pada medium stego yang tidak dinormalisasi dengan nilai D yang telah ditentukan kemudian dilakukan ekstraksi pesan dan dilakukan kompresi.Teknik steganografi dengan Metode DCT menghasilkan citra stego dalam ukuran kecil, mempunyai tingkat kesamaan yang tinggi dengan citra aslinya, selain itu pesan yang disembunyikan dalam citra stego tidak mudah terdeteksi. Nilai D paling baik yang dihasilkan pada penelitian ini adalah 21. Pada D = 21, citra stego masih belum tahan terhadap kompresi tetapi tingkat kesamaannya terhadap citra asli sangat tinggi.
OPTIMALISASI ASESMEN UNTUK SEKOLAH MENENGAH KEJURUAN PADA KURIKULUM MERDEKA Sri Murwantini
Steam Engineering Vol. 4 No. 2 (2023): STEAM Engineering, Vol. 4, No. 2, Maret 2023
Publisher : Program Studi Pendidikan Teknik Mesin, Fakultas Keguruan dan Ilmu Pendidikan, Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37304/jptm.v4i2.8396

Abstract

This research aims to study the optimization of assessments for vocational high schools (SMK) in the Kurikulum Merdeka. The assessment in the Kurikulum Merdeka includes formative and summative assessments In SMK there is a form of assessment or assessment that distinguishes it from other levels, namely: fieldwork practice assessment, Vocational competency test and Competency Unit Examination. Optimization of assessments is done by making good assessment planning including the formation of assessment objectives, formulation of achievement criteria, selection of appropriate assessment instruments and applying high order thinking skills (HOTS). Assessment planning must be clearly illustrated in the RPP or Teaching Module developed, as well as the implementation of the assessment according to planning in the learning process.
Persfektif Guru dan Orang Tua Murid Terhadap Pembuatan Alat Permainan Anak di TK Bakuwu UPR Wiyogo Wiyogo; Debora Debora; Harie Satiyadi Jaya; Vontas Alfenny Nahan; Sri Murwantini; Sukardi Sukardi; Ahmad Eko Suryanto; Marko Ayaki Lumbantobing; Ratna Pancawati; Muhammad Hudan Rahmat; Supriyadi Supriyadi; Agung Samudra; Galfri Siswandi; Nurul Huda; Jeremy Imanuel Segah
Jurnal Ilmiah Kanderang Tingang Vol 14 No 2 (2023): Jurnal Ilmiah Kanderang Tingang
Publisher : FKIP Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37304/jikt.v14i2.265

Abstract

In the world of children, physical activities are a vital key to their development, and play becomes a crucial aspect in this process. Utilizing play equipment, children's learning and interaction can be facilitated. Through the Community Engagement initiative conducted by the Mechanical Engineering Education at Bakuwu Kindergarten, Universitas Palangka Raya (UPR), innovative principles are integrated into the creation of children's play equipment. The primary objective of this initiative is to gain insights from both teachers and parents regarding the produced play equipment. The research methodology employs a mixed-methods design, incorporating Pareto analysis. The results reveal that maintenance and upkeep of the play equipment constitute a predominant issue, contributing to 34% of the overall problems. It can be concluded that the maintenance of play equipment is a critical element in enhancing the efficiency and effectiveness of activities. Sustained development and improvement have long-term benefits for children, educators, and the community. Recommendations for enhancement encompass heightened awareness, regular maintenance, and the implementation of continuous improvement cycles, aligning with the Pareto analysis principles that emphasize addressing the most significant issues for optimal outcomes.
EVALUASI PROGRAM PEMBELAJARAN LINK AND MATCH SMK DENGAN DUNIA USAHA/INDUSTRI Aldo Dese; Sri Murwantini; Ratna Pancawati
Steam Engineering Vol. 5 No. 2 (2024): STEAM Engineering, Vol. 5, No. 2, Maret 2024
Publisher : Program Studi Pendidikan Teknik Mesin, Fakultas Keguruan dan Ilmu Pendidikan, Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37304/jptm.v5i2.12976

Abstract

This study aims to evaluate the Link and Match learning program in Light Vehicle Engineering at SMK Karsa Mulya Palangka Raya. The evaluation covers input and process aspects conducted by the school and the business/industry partner, namely PT. Murni Berlian Motor Palangka Raya (Mitsubishi Motors). Respondents included 30 students, 3 teachers/school administrators, and 3 representatives from the business/industry partner. Data were collected through surveys, interviews, and documentation, followed by descriptive analysis. The results show, first, that the implementation of the Link and Match program is considered good based on teacher readiness, teacher competence, student preparedness, facilities, and cooperation. The input evaluation falls into the good category, with an average score of 18.00. Second, the process of implementing this program in the business/industry sector is deemed good based on the facilities and infrastructure of the industry class, the role of teachers, the role of students, and work practices at the business/industry site, with an average score of 17.07 by students and 19.00 by teachers. To support and improve the quality of the Link and Match program, it is recommended to provide varied provision to enhance students' understanding of the material and to conduct in-depth evaluations of students' comprehension of vocational competences.
Co-Authors Agung Samudra Ahmad Eko Suryanto Aldo Dese Debora Debora Galfri Siswandi Harie Satiyadi Jaya Jeremy Imanuel Segah Lumbantobing, Marko Ayaki Muhammad Hudan Rahmat Nurul Huda Ratna Pancawati Sukardi Supriyadi Supriyadi Vontas Alfenny Nahan Wiyogo Wiyogo