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DOAJ Open Access

Integration of open natural circulation system to single-phase immersion cooling of data centre: an experimental approach for proof of concept

International Journal of Sustainable Engineering, Vol 19, Iss 1 (2026) | ISSN: 1939-7046
Taylor & Francis Group, 2026DOI: 10.1080/19397038.2026.2627666
Cooling systems are the second-largest energy consumers in data centres, ensuring safe operating temperatures for high-heat-flux electronics. Among various thermal management techniques, immersion cooling is highly efficient but requires significant ...
Repositori Institusi

Pembelajaran bahasa Indonesia bagi penutur asing (BIPA) dengan metode immersion terintegrasi budaya Indonesia

Badan Pengembangan dan Pembinaan Bahasa, 2018
Pembahasan dalam artikel ini adalah mendeskripsikan pengintegrasian budaya Indonesia dalam pembelajaran bahasa Indonesia bagi penutur asing (BIPA) dengan menggunakan metode immersion. Integrasi pembelajaran BIPA dengan budaya Indonesia sangat penting...
Repositori Institusi

Pendidikan Singapura di masa pandemic covid-19

Atase Pendidikan dan Kebudayaan KBRI Singapura, 2020cc_by_nc_4
Pandemi CORONA-19 telah mengubah berbagai aspekkehidupan. Termasuk dunia pendidikan. Proses belajarmengajar di sekolah/kampus mengalami perubahan pola belajar menjadi school from home/home based learning/online. Hal tersebut tidak hanya dialami oleh ...
Repositori Institusi

Active Learning and Professional Support Changing Primary Schools Throught Support For The Teachers

Curriculum Development Centre, 1988
We began a pilot project in Cianjur to try alternative forms of professional support for teachers as a means to improving quality in the primary schools. This was so successful that we decided to disseminate the ideas of Active Learning and Professio...
Repositori Institusi

Reports and documents of the consultative committee for the safeguarding of Borobudur = Pelita borobudur: laporan proyek restorasi candi borobudur seri cc: 1-6

Departemen Pendidikan dan Kebudayaan, 1982
The "Consultative Committee for the Safeguarding of Borobudur" is an advisory body set up by the Indonesian Government in January 1973 in compliance with Unesco's wish. The Consultative Committee meets at least once a year in Indonesia...
Repositori Institusi

Jurnal pendidikan volume XIII nomor 02 Agustus 2022

Balai Penjaminan Mutu Pendidikan Daerah Istimewa Yogyakarta, 2022
1. Super chito (supervisi coaching mentoring) pola in on in untuk meningkatkan kemampuan guru menyusun RPP 2. Peningkatan hasil belajar ips melalui penerapan model pembelajaran berbasis masalah secara daring 3. Peningkatan keaktifan belajar dan has...
Repositori Institusi

Penerapan metode kooperatif dalam peningkatan motivasi dan partisipasi siswa serta kualitas hasil belajar matematika di SMK Negeri 1 Balikpapan

Direktorat Jenderal Pendidikan Dasar dan Menengah, 2008cc_by_nc_4
Model the study which can improve the enthusiasm learn the student, pleasing and orienting at student interest use the Co-Operative method with the approach Think-Pair-Share which its emphasis at individual aktifitas and group. this Research target i...
Repositori Institusi

Penggunaan Program Simulasi Fluidsim-P Dipadukan Dengan Model Problem Solving Untuk Peningkatan Motivasi Dan Kompetensi Pembelajaran Praktek Pneumatik Di SMK Negeri 1 Balikpapan

LPMP Kalimantan Timur
The Goal of Researching Action in the Class to improve the quality of study for practicing pneumatic pursuant to curriculum based competency through usage of simulation program of Fluidsim-P. The Main problem which often faced by teacher in learnin...
Jurnal Institusi

Preparation of CaTiO3 Asymmetric Membranes Using Polyetherimide as Binder Polymer

Indonesian Journal of Chemistry; Vol 16, No 1 (2016); 20-24
Universitas Gadjah Mada, 2018DOI: 10.22146/ijc.21172http://creativecommons.org/licenses/by-nc-nd/4.0
Asymmetric dense and thin membranes have been prepared from powders of perovskite oxide-type CaTiO3 without cracking by phase inversion method. Polyetherimide was used as a polymeric binder in the method. The resulting green membranes, composed of Ca...
Jurnal Institusi

Synthesis of Zeolite-X Supported On Glasswool for CO2 Capture Material: Variation of Immersion Time and NaOH Concentration at Glasswool Activation

Indonesian Journal of Chemistry; Vol 16, No 1 (2016); 1-7
Universitas Gadjah Mada, 2018DOI: 10.22146/ijc.21169http://creativecommons.org/licenses/by-nc-nd/4.0
Zeolite X supported on fiber material (glasswool) was successfully synthesized using a simple hydrothermal method. Variation of immersion time and NaOH concentration were used for glasswool activation. Activation process of glasswool has effects towa...
Jurnal Institusi

Precious Metals Supported on Alumina and Their Application for Catalytic Aqueous Phase Reforming of Glycerol

Indonesian Journal of Chemistry; Vol 15, No 3 (2015); 269-273
Universitas Gadjah Mada, 2015DOI: 10.22146/ijc.21195http://creativecommons.org/licenses/by-nc-nd/4.0
The high cost of Pt based catalyst for aqueous phase reforming (APR) reaction makes it advantageous to develop less cost of other metals for the same reaction. APR is hydrogen production process from biomass-derived source at mild condition near 500 ...
Jurnal Institusi

College library model supporting students' psychological well-being and mental health

Berkala Ilmu Perpustakaan dan Informasi; Vol 21 No 2 (2025): December; 265-279
Library and Archive, Universitas Gadjah Mada, 2025DOI: 10.22146/bip.v21i2.17376https://creativecommons.org/licenses/by-sa/4.0
Introduction. Students’ mental health is vital in higher education. Libraries serve as information hubs and spaces for relaxation, stress relief, and psychological support. This study explores library usage, key services and facilities for well-bei...
Jurnal Institusi

Analytical Method Validation and Determination of Pyridoxine, Nicotinamide, and Caffeine in Energy Drinks Using Thin Layer Chromatography-Densitometry

Indonesian Journal of Chemistry; Vol 15, No 1 (2015); 9-15
Universitas Gadjah Mada, 2015DOI: 10.22146/ijc.21217http://creativecommons.org/licenses/by-nc-nd/4.0
Food supplement which contains vitamins and stimulants such as caffeine were classified as energy drink. TLC-densitometry method was chosen to determine the pyridoxine, nicotinamide, and caffeine in the energy drink sample. TLC plates of silica gel 6...
Jurnal Institusi

Characteristics of Nanosize Spinel NixFe3-xO4 Prepared by Sol-Gel Method Using Egg White as Emulsifying Agent

Indonesian Journal of Chemistry; Vol 15, No 2 (2015); 116-122
Universitas Gadjah Mada, 2015DOI: 10.22146/ijc.21204http://creativecommons.org/licenses/by-nc-nd/4.0
In this study, sol-gel method using egg white as emulsifying agent was applied to prepare nano size spinel NixFe3-xO4 (with x = 0.2–1). Sample preparation was carried out by mixing the solution of Fe(NO3)3.9 H2O and Ni(NO3)3.6 H2O with egg white, a...
Jurnal Institusi

Modification of Three Types of Bentonite with Zirconium Oxide Chloride (ZOC) of Local Products Using Intercalation Process

Indonesian Journal of Chemistry; Vol 16, No 1 (2016); 14-19
Universitas Gadjah Mada, 2018DOI: 10.22146/ijc.21171http://creativecommons.org/licenses/by-nc-nd/4.0
Three types of bentonite modified with ZOC local products of Center for Accelerator Science and Technology-National Nuclear Energy Agency using intercalation process have been done. The purpose of this research is to create new material as a catalyst...
Jurnal Institusi

Systematic literature review and bibliometric analysis of archivist competencies in digital curation

Berkala Ilmu Perpustakaan dan Informasi; Vol 18 No 2 (2022): December; 232-246
Library and Archive, Universitas Gadjah Mada, 2022DOI: 10.22146/bip.v18i2.5415https://creativecommons.org/licenses/by-sa/4.0
Introduction. Digital curation tasks and objectives align with the task of archivists who must digitally plan to ensure safe long-term preservation. As information professionals, archivists must master competencies to become digital curators in the f...
Jurnal Institusi

Management Library Based on Digital Literacy at school Berau State High School (Study Cases at State Senior High School 4 and State Senior High School 6 Berau)

Lentera Pustaka: Jurnal Kajian Ilmu Perpustakaan, Informasi dan Kearsipan; Vol 11, No 1 (2025): June; 103-118
Library and Information Science Study Program, Faculty of Humanities, Univ. Diponegoro, 2025DOI: 10.14710/lenpust.v11i1.71286http://creativecommons.org/licenses/by-sa/4.0
Background: The transformation of traditional libraries into digital ones has become essential for the learning process. On one hand, libraries are required to provide digital resources, while on the other, students are expected to be literate in usi...
Jurnal Institusi

Isothermal Vapor-Liquid Equilibrium of Methanol + Glycerol and 1-Propanol + Glycerol

Indonesian Journal of Chemistry; Vol 16, No 1 (2016); 111-116
Universitas Gadjah Mada, 2018DOI: 10.22146/ijc.21186http://creativecommons.org/licenses/by-nc-nd/4.0
Isothermal vapor-liquid equilibrium (VLE) data for two binary mixtures of methanol + glycerol and 1-propanol + glycerol were determined at the temperature range from (313.15 to 363.15) K using a simple quasi-static ebulliometer. All systems showed th...
Jurnal Institusi

Preparation of Citric Acid Crosslinked Chitosan/Poly(Vinyl Alcohol) Blend Membranes for Creatinine Transport

Indonesian Journal of Chemistry; Vol 16, No 2 (2016); 144-150
Universitas Gadjah Mada, 2018DOI: 10.22146/ijc.21157http://creativecommons.org/licenses/by-nc-nd/4.0
Preparation of membrane using crosslinking reaction between chitosan and citric acid showed that functional group modification increased the number of active carrier groups which lead to better transport capacity of the membrane. In addition, the sub...
Jurnal Institusi

Retracted-Enhanced X-Ray Absorption Property of Gold-Doped Single Wall Carbon Nanotube

Indonesian Journal of Chemistry; Vol 15, No 3 (2015); 211-217
Universitas Gadjah Mada, 2015DOI: 10.22146/ijc.21187http://creativecommons.org/licenses/by-nc-nd/4.0
Enhanced X-ray absorption property of single wall carbon nanotube (SWCNT) through gold (Au) doping (Au@SWCNT) has been studied. Mass attenuation coefficient of SWCNT increased 5.2-fold after Au doping treatment. The use of ethanol in the liquid phase...