Distance Learning and Student Anxiety at Palangkaraya University

Authors: Perdana Indra, Sasmithae Lia

Source: Al-Ishlah: Jurnal Pendidikan, Vol 13, Iss 3, Pp 2824-2830 (2021)

Subject Terms: covid 19, distance learning, mental health, Education (General), L7-991

File Description: electronic resource

Relation: https://journal.staihubbulwathan.id/index.php/alishlah/article/view/1100; https://doaj.org/toc/2087-9490; https://doaj.org/toc/2597-940X

Access URL: https://doaj.org/article/1d3ba490f8e949f292df3f1ddeb050b5

The Relationship between Undergraduate Students' Writing Knowledge and Writing Performance

Authors: Perdana, Indra, Bungai, Joni, Wihastyanang, Wardani Dwi, Budhiono, Ralph Hery, Tanate, Valentina Lovina

Source: International Journal of Language Education. 2023 7(2):291-303.

Peer Reviewed: Y

Page Count: 13

Descriptors: Undergraduate Students, Language Proficiency, Writing Tests, Writing Instruction, Writing Improvement, Vocabulary Skills, Second Language Learning, Correlation, Writing Achievement, Metalinguistics, Metacognition, Teaching Methods, English (Second Language), Scoring Rubrics, Essays, Foreign Countries

Geographic Terms: Indonesia

Characterization and identification of clay-material provenance from Bayat ceramic home industry in Klaten, Central Java, Indonesia

Authors: Setiawan Nugroho Imam, Perdana Indra, Syarifah Vidya, Buana Pra Cipta, Setyowiyoto Milzam Dzulfiqar, Istinanda Rizki, Barianto Didit Hadi, Ansori Chusni

Source: E3S Web of Conferences, Vol 325, p 06002 (2021)

Subject Terms: Environmental sciences, GE1-350

File Description: electronic resource

Relation: https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/101/e3sconf_icst2021_06002.pdf; https://doaj.org/toc/2267-1242

Access URL: https://doaj.org/article/bd3accd7a3eb497296dc9d70f6edcfa4

Analysis of Student Satisfaction with the Quality of Education Services

Authors: Husain, Rusmin (ORCID 0000-0003-0294-8850), Arifin, Ardian (ORCID 0000-0002-8183-6701), Cakranegara, Pandu (ORCID 0000-0001-8754-3646), Victornie, Irnie (ORCID 0000-0001-6765-6491), Perdana, Indra (ORCID 0000-0003-2223-5831), Nugroho, Budi Sulistiyo (ORCID 0000-0001-9891-7113)

Source: Cypriot Journal of Educational Sciences. 2022 17(2):343-356.

Peer Reviewed: Y

Page Count: 14

Descriptors: Foreign Countries, Student Satisfaction, Educational Quality, College Students, Computer Science Education, Information Technology, Barriers, Empathy, Reliability

Geographic Terms: Indonesia

Lithium recovery from mixed spent LFP-NMC batteries through atmospheric water leaching.

Authors: Perdana, Indra¹ (AUTHOR) iperdana@ugm.ac.id, Aprilianto, Doni Riski¹ (AUTHOR), Fadillah, Farika Asna¹ (AUTHOR), Fadli, Riskal¹ (AUTHOR), Petrus, Himawan Tri Bayu Murti¹ (AUTHOR), Astuti, Widi² (AUTHOR), Muflikhun, Muhammad Akhsin³ (AUTHOR), Nilasary, Hanida⁴ (AUTHOR), Oktaviano, Haryo Satriya⁴ (AUTHOR), Fathoni, Ferry⁴ (AUTHOR), Raihan, Edo⁴ (AUTHOR), Muzayanha, Soraya Ulfa⁴ (AUTHOR)

Source: Scientific Reports. 1/21/2025, Vol. 15 Issue 1, p1-17. 17p.

Subject Terms: *HYDROPHILIC compounds, *WASTE recycling, *WEATHER, *PHYSICAL & theoretical chemistry, *LEACHING

A kinetics study of acetic acid on cobalt leaching of spent LIBs: Shrinking Core Model

Authors: Setiawan Hendrik, Petrus Himawan T.B.M., Perdana Indra

Source: MATEC Web of Conferences, Vol 154, p 01033 (2018)

Subject Terms: Engineering (General). Civil engineering (General), TA1-2040

File Description: electronic resource

Relation: https://doaj.org/toc/2261-236X

Access URL: https://doaj.org/article/9105bdcc73da40e1a5ccf03e622c285a

Sequential alkaline-organic acid leaching process to enhance the recovery of rare earth elements from Indonesian coal fly ash

Authors: Rosita, Widya, Perdana, Indra, Bendiyasa, I Made, Anggara, Ferian, Petrus, Himawan Tri Bayu Murti, Prasetya, Agus, Rodliyah, Isyatun

Source: In Journal of Rare Earths July 2024 42(7):1366-1374

Investigation of the Reliability of CF3CHC12+ N2 Gas Mixture as a Potential Substitute for SF6

Authors: Juliandhy, Tedy, Haryono, T., Suharyanto, Perdana, Indra

Source: 2018 4th International Conference on Science and Technology (ICST) Science and Technology (ICST), 2018 4th International Conference on. :1-4 Aug, 2018

Relation: 2018 4th International Conference on Science and Technology (ICST)

Breakdown voltage for mixed CF3CHCl2+N2 gases as gas insulation application

Authors: Juliandhy, Tedy, Haryono, T., Suharyanto, Perdana, Indra

Source: 2018 International Conference on Information and Communications Technology (ICOIACT) Information and Communications Technology (ICOIACT), 2018 International Conference on. :833-837 Mar, 2018

Relation: 2018 International Conference on Information and Communications Technology (ICOIACT)

Comparison of CF3CHCl2 gas with SF6 gas as an alternative substitute for gas insulated switchgear equipment

Authors: Juliandhy, Tedy, Haryono, T., Suharyanto, Perdana, Indra

Source: 2017 International Conference on High Voltage Engineering and Power Systems (ICHVEPS) High Voltage Engineering and Power Systems (ICHVEPS), 2017 International Conference on. :198-203 Oct, 2017

Relation: 2017 International Conference on High Voltage Engineering and Power Systems (ICHVEPS)

The Effect of Islamic Work Ethics, Work Strees, and Work Life Balance on Employee Performance with Work Loyalty as an Intervening Variable at Bank Sumut Syariah KCP Katamso Medan

Authors: Rafika Afifah Angkat, Ahmad Perdana Indra, Khairina Tambunan

Source: Al Iqtishod, Vol 11, Iss 2 (2023)

Subject Terms: Islamic Work Ethics, Work Stress, Work Life Balance, Employee Performance, Work Loyalty, Economic history and conditions, HC10-1085, Islam, BP1-253

File Description: electronic resource

Relation: https://jurnal.stai-alazharmenganti.ac.id/index.php/AlIqtishod/article/view/981; https://doaj.org/toc/2407-6600; https://doaj.org/toc/2745-8512

Access URL: https://doaj.org/article/43f0734c2e6d4043ad5c75a3608dfc83

Modified nanoparticle geothermal silica in rubber composites: mechanical properties and vulcanization kinetics

Authors: Sya’bani, Muh. Wahyu, Rochmadi, Perdana, Indra, Prasetya, Agus

Source: Iranian Polymer Journal; 20250101, Issue: Preprints p1-13, 13p

Android-based learning media for learning styles and student learning outcomes

Authors: Perdana, Indra, Arifin, Ardian, Hati, Kusuma, Subagiharti, Heni, Handayani, Diah Syafitri

Source: AIP conference proceedings. 2431

Availability: http://explore.bl.uk/primo_library/libweb/action/display.do?tabs=detailsTab&gathStatTab=true&ct=display&fn=search&doc=ETOCvdc_100190059783.0x000001&indx=1&recIds=ETOCvdc_100190059783.0x000001

Sequential particle-size and magnetic separation for enrichment of rare-earth elements and yttrium in Indonesia coal fly ash

Authors: Rosita, Widya ^*, Bendiyasa, I Made, Perdana, Indra, Anggara, Ferian

Source: In Journal of Environmental Chemical Engineering February 2020 8(1)

Kinetics on roasting reduction of limonitic laterite ore using coconut-charcoal and anthracite reductants

Authors: Petrus, Himawan Tri Bayu Murti, Putera, Andreas Diga Pratama, Sugiarto, Edi, Perdana, Indra, Warmada, I Wayan, Nurjaman, Fajar, Astuti, Widi, Mursito, Anggoro Tri

Source: In Minerals Engineering 1 March 2019 132:126-133

A SYSTEMATIC LITERATURE REVIEW ON GRAMMARLY IN ENGLISH STUDIES: ADVANTAGES THAT DAZZLE AND DISADVANTAGES THAT FAZZLE.

Authors: Hasby, Nazar, Perdana, Indra, Kodriyah, Lailatul, Angrum, Alna Triskaya

Source: Asian Journal of English Language & Pedagogy (AJELP); 2024, Vol. 12 Issue 2, p139-154, 16p

Subject Terms: ENGLISH language education, LANGUAGE acquisition, ACADEMIC discourse, ENGLISH language, WRITING processes

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Lithium recovery from spent Li-ion batteries using coconut shell activated carbon

Authors: Purnomo, Chandra Wahyu, Kesuma, Endhy Putra, Perdana, Indra, Aziz, Muhammad

Source: In Waste Management September 2018 79:454-461

Reaction kinetics modeling for lithium and cobalt recovery from spent lithium-ion batteries using acetic acid

Authors: Setiawan, Hendrik, Petrus, Himawan Tri Bayu Murti, Perdana, Indra

Source: International journal of minerals, metallurgy and materials. 26(1):98-107

Availability: http://explore.bl.uk/primo_library/libweb/action/display.do?tabs=detailsTab&gathStatTab=true&ct=display&fn=search&doc=ETOCvdc_100151184898.0x000001&indx=1&recIds=ETOCvdc_100151184898.0x000001

Selective recovery of nickel from precipitates of NCA battery cathodes through leaching process using oxalic acid

Authors: Pangestu, Aji Ridho, Prasetyo, Imam, Perdana, Indra

Source: AIP conference proceedings. 2440

Availability: http://explore.bl.uk/primo_library/libweb/action/display.do?tabs=detailsTab&gathStatTab=true&ct=display&fn=search&doc=ETOCvdc_100139292834.0x000001&indx=1&recIds=ETOCvdc_100139292834.0x000001