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All Journal Urania Jurnal Ilmiah Daur Bahan Bakar Nuklir Jurnal Pendidikan Bahasa Inggris Jurnal Harpodon Borneo Jurnal Bahan Alam Terbarukan Seminar Nasional Teknik Kimia Kejuangan English Teaching Journal : A Journal of English Literature, Language, and Education MODELING: Jurnal Program Studi PGMI Indonesian Journal of Chemistry Communications in Science and Technology JURNAL PENDIDIKAN TAMBUSAI Edumaspul: Jurnal Pendidikan Journal of English Education, Linguistic and Literature Jurnal Komunikasi Profesional SeBaSa: Jurnal Pendidikan Bahasa dan Sastra Indonesia Bahasa: Jurnal Keilmuan Pendidikan Bahasa dan Sastra Indonesia PROJECT (Professional Journal of English Education) ASEAN Journal of Chemical Engineering Pioneer: Journal of Language and Literature CITRA JUSTICIA : Majalah Hukum dan Dinamika Kemasyarakatan Jo-ELT (Journal of English Language Teaching) Fakultas Pendidikan Bahasa dan Seni Program Studi Pendidikan Bahasa Inggris IKIP MAHATANI: Jurnal Agribisnis (Agribusiness and Agricultural Economics Journal) Enggang: Jurnal Pendidikan, Bahasa, Sastra, Seni, dan Budaya Metta : Jurnal Ilmu Multidisiplin Pengabdian Kampus: Jurnal Informasi Kegiatan Pengabdian Pada Masyarakat Proceedings Series on Physical & Formal Sciences Journal of Education Research Journal Compound : Improving the Quality of English Education Al-MIKRAJ: Jurnal studi Islam dan Humaniora Lingua Franca Journal International Inspire Education Technology (JIIET) Makara Journal of Technology Mitra Teras: Jurnal Terapan Pengabdian Masyarakat Jurnal Rekayasa Proses Tambuleng: Jurnal Pendidikan Seni Drama, Tari, dan Musik
Indra Perdana
Departemen Teknik Kimia, Fakultas Teknik, Universitas Gadjah Mada, Jl. Grafika No.2 Yogyakarta 55281, Indonesia, Telp.(+62274) 561176
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SINTESIS BIOADITIF GASOLINE MELALUI KETALISASI GLISEROL MENGGUNAKAN KATALISATOR PADAT Nuryoto, Nuryoto; Sulistyo, Hary; Sediawan, Wahyudi Budi; Perdana, Indra
Jurnal Bahan Alam Terbarukan Vol 5, No 2 (2016): December 2016 [Nationally Accredited]
Publisher : Semarang State University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jbat.v5i2.7431

Abstract

Utilization of glycerol side product from biodiesel as waste management application is required for reduced   negative effect which possible emerged. Glycerol  have three bond of hydroxyde, so its  opportunity  to utilize  to be solketal as bio-additive of gasoline. Indion 225 Na ion exchanger resin is strong acid cation category and low  prices, so  its potency to use alternatively of solid catalyst to get efficient and economic process. The purpose of this research was focussed to search  of the best condition by optimalization indion 225 Na performance as catalyst in glycerol ketalization reaction, by integrated of variables that have effected to reaction for maximize glycerol coversion. To get maximize of reactants molecular interaction and for  optimalization indion 255 Na performance, observation  conducted  in the  range variables which widely enough that were  reactant ratio of 5:1-6:1 mole of acetone mole/mole of glycerol, diameter size  catalyst of  20-40 mesh, catalyst concentration of 3-5% mass of acetone, and reaction temperature of 35-65oC. Result of the research showed that  indion 225 Na catalyst have good performance, by glycerol conversion to reach of 51.89%. Glycerol conversion mentioned was obtained at reactant ratio of 6:1 mole of acetone/mole of gycerol, diameter size catalyst of  40 mesh, catalyst concentration of 4%  mass of acetone, and  reaction temperature of  65oC.
PERBANDINGAN RASIO KELAMIN, MORTALITAS DAN PERTUMBUHAN IKAN NOMEI (Harpadon nehereus) YANG BERASAL DARI HASIL PENANGKAPAN NELAYAN JUATA KOTA TARAKAN Perdana, Indra; Salim, Gazali; Weliyadi, Encik
Jurnal Harpodon Borneo Vol 9, No 2 (2016): Volume 9 No 2 Oktober 2016
Publisher : Jurnal Harpodon Borneo

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (628.9 KB) | DOI: 10.35334/harpodon.v9i2.170

Abstract

The aim of research was to determine the sex ratio test; fish mortality and growth of fish nomei in waters Juata Tarakan City. Method location research is purposive sampling with consideration that the research sites is the main area of fishing nomei in the waters Juata Tarakan City. The variable in this study is the variable sex ratio, mortality, growth allometri, condition index, absolute growth, age structure. Sample collection technique using field surveys. The sampling method by using the technique of "purposive sampling". Primary data obtained from data on length and weight of the fish that fishermen catch nomei performed 5 times a cycle arrest for 3 months for a total of as many as 50 fish of various sizes. Fish samples measured length (cm) and weight (grams). Sampling as many as 50 fish nomei using purposive sampling method is expected to represent the population of fish nomei in the waters Juata Tarakan City.The result showed that the sex ratio is 43.2% male and 56.8% female. The maximum length of male and female fish nomei is 32.2 cm average growth rate of 0,019 cm / day and by 34 cm with a growth rate of 0,017 cm / day. Nomei male and female fish that are allometri positive and negative. The mortality rate of male and female fish that is equal to3.88% per three months and 6.97% per three months. Keywords : Harpadon nehereus; mortality; kelammin ratio; growth; Tarakan
THE TEACHER’S TECHNIQUES FOR BUILDING STUDENTS’ SPEAKING SKILL ON THE BEGINNING OF PANDEMIC COVID 19 Umar, Vebrianti; Perdana, Indra; Wihastyanang, Wardani Dwi
JEELL (Journal of English Education, Linguistics and Literature) English Department of STKIP PGRI Jombang Vol 7, No 1 (2020)
Publisher : STKIP PGRI Jombang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32682/jeell.v7i1.1561

Abstract

Techniques are important thing for building students’ speaking skills. Therefore the teacher should have techniques and should be able to apply them correctly. Many researchers have discussed about this topic with different tittle actually. This study aimed to find out the techniques used by the teacher for building students’ speaking skill at the tenth grade of SMA Negeri 1 Karang Intan on the beginning of pandemic covid 19. Furthermore, the researcher would like to gain more knowledge about how the teacher applies the techniques, then what the advantages and disadvantages of them. The researcher uses qualitative as the method for conducting this research with English teacher itself as the subject. The researcher collects the data through interview, documentation and observation. The data is analyzed by using Miles and Hubberman’s theory.The result shows the teacher uses stimulation, telling story, discussion, and picture describing as the techniques. The English teacher applies the techniques in different ways. Stimulation:  greeting and giving questions, telling story: experience story and short narrative story, discussion: update news, and picture describing: family picture. Furthermore, these techniques have their own advantages and disadvantages.
Mendengarkan dan berbicara untuk berkomunikasi: apa yang guru lakukan dan siswa pelajari dari penilaian kelas Syahrani, Agus; Asfar, Dedy Ari; Perdana, Indra; Pattiasina, Petrus Jacob; Nadeak, Bernadetha
Jurnal Komunikasi Profesional Vol 5 No 4 (2021)
Publisher : Fakultas Ilmu Komunikasi Universitas dr. Soetomo

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (253.992 KB) | DOI: 10.25139/jkp.v5i4.3908

Abstract

Choosing the right learning media during the Covid-19 pandemic is very important. Students are helped in understanding the learning material delivered with learning media, even though they are studying at home. The purpose of this study is to find out how Edmodo as a medium is used in teaching and learning activities. This research is a research that uses a qualitative approach and uses a phenomenological method to students and teachers. The conclusion obtained in this study is that the communication that occurs between teachers and students in Edmodo takes place effectively through the delivery of material that is easily understood by students.
Mendengarkan dan berbicara untuk berkomunikasi: apa yang guru lakukan dan siswa pelajari dari penilaian kelas Syahrani, Agus; Asfar, Dedy Ari; Perdana, Indra; Pattiasina, Petrus Jacob; Nadeak, Bernadetha
Jurnal Komunikasi Profesional Vol. 5 No. 4 (2021)
Publisher : Fakultas Ilmu Komunikasi Universitas dr. Soetomo

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (253.992 KB) | DOI: 10.25139/jkp.v5i4.3908

Abstract

Choosing the right learning media during the Covid-19 pandemic is very important. Students are helped in understanding the learning material delivered with learning media, even though they are studying at home. The purpose of this study is to find out how Edmodo as a medium is used in teaching and learning activities. This research is a research that uses a qualitative approach and uses a phenomenological method to students and teachers. The conclusion obtained in this study is that the communication that occurs between teachers and students in Edmodo takes place effectively through the delivery of material that is easily understood by students.
Ethanol Purification Using Activated Natural Zeolite Purnomo, Chandra Wahyu; Putri, Nelliza; Perdana, Indra; Hinode, Hirofumi
Makara Journal of Technology Vol. 21, No. 2
Publisher : UI Scholars Hub

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

Abstract

Bio ethanol is one of the potential fuels in the future. However, ethanol in water mixture has an azeotropic concentration of 95.6 wt. %, which makes it difficult to purify further. The common method of purification is by using an azeotropic distillation column, which requires an intensive energy and an addition of specific solvent. In this study, ethanol purification is done using an adsorption column packed with zeolite Raschig rings. The natural zeolite ring was modified beforehand using the NaOH solution to enhance the material’s water adsorption performance. The ethanol purity can reach more than 99% with the modified zeolite packing. The modification also increases the saturation time of the packed bed column, thus making it more efficient.
The Use of Wordwall in Vocabulary Selection in Narrative Texts of Students in Class VII-1 SMP Palangka Raya Perdana, Indra; Bungai, Joni; Oscar, Scherschligt; Kathryn, Morse
Journal International Inspire Education Technology Vol. 2 No. 3 (2023)
Publisher : Sekolah Tinggi Agama Islam Al-Hikmah Pariangan Batusangkar, West Sumatra, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55849/jiiet.v2i3.481

Abstract

Learning media is one of the important factors that influence learning outcomes. The selection and use of appropriate and interesting media will have a good impact on student learning success. The use of technology-based learning media is still not widely done at SMPN 2 Palangka Raya. This study aims to apply Wordwall media as a medium for doing assignments and helping students in choosing the right vocabulary in the Imagination story. This research was conducted on students of class VII-I. Procedure for collecting data through observation, documentation, pre-test, post-test and interviews. Data were analyzed through data reduction, data presentation and drawing conclusions. The results showed that the application of Wordwall media can help students in working on the task of choosing Vocabulary in the Imagination story. It can be seen from the change in the score between the Pre Test and Post Test which has increased.
PENGARUH DIAMETER NOZZLE TERHADAP DIAMETER GEL PADA PROSES GELASI EKSTERNAL KERNEL CERIA STABILIZED ZIRCONIA (CSZ) Nurwidyaningrum, Kristanti; Sediawan, Wahyudi Budi; Perdana, Indra
Urania : Jurnal Ilmiah Daur Bahan Bakar Nuklir Vol 25, No 3 (2019): Oktober, 2019
Publisher : website

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (585.431 KB) | DOI: 10.17146/urania.2019.25.3.5592

Abstract

PENGARUH DIAMETER NOZZLE TERHADAP DIAMETER GEL PADA PROSES GELASI EKSTERNAL KERNEL CERIA STABILIZED ZIRCONIA (CSZ). Pengembangan teknologi bahan bakar nuklir diperlukan untuk dapat membuat bahan bakar sesuai dengan spesifikasi yang dipersyaratkan. Dalam produksi partikel terlapis yang memenuhi persyaratan untuk bahan bakar reaktor gas temperatur tinggi, diperlukan produksi kernel yang memenuhi kendali kualitas dan jaminan mutu dari persyaratan kernel. Salah satu persyaratan kendali kualitas untuk kernel adalah kontrol diameter. Penelitian dilakukan dengan memvariasikan diameter nozzle sehingga dapat memprediksi ukuran butiran gel yang diperoleh dari proses gelasi eksternal dengan mengkorelasikan variabel densitas umpan, viskositas umpan, tegangan muka larutan umpan dan diameter nozzle secara kuantitatif dengan metode analisis dimensi dalam bentuk bilangan tidak berdimensi. Pembuatan kernel CSZ dilakukan dengan penyiapan larutan umpan. Larutan umpan terdiri dari campuran ZrO(NO3)2.2H2O dan Ce(NO3)3.6H2O, urea, tetrahydrofurfuryl alcohol (THFA) dan poly vinyl alcohol (PVA). Proses gelasi eksternal dilakukan dengan cara meneteskan larutan umpan ke dalam kolom gelasi yang berisi medium ammonium hidroksida sehingga terbentuk gel CSZ. Pembentukan droplet terjadi pada saat larutan umpan melewati nozzle. Diameter gel yang terbentuk dapat dihitung dengan mengkorelasikan diameter nozzle dan sifat fisis dari larutan umpan menggunakan analisis dimensi. Diameter gel hasil eksperimen diukur dengan menggunakan mikroskop optik. Diameter gel yang diperoleh dari persamaan bilangan tak berdimensi menunjukkan hasil yang tidak terlalu berbeda dengan diameter gel eksperimen, walaupun terdapat beberapa penyimpangan hasil yang diperoleh. Dari diameter gel eksperimen dan persamaan bilangan tak berdimensi menunjukkan bahwa diameter nozzle berbanding lurus dengan diameter gel.Kata Kunci: gelasi eksternal, diameter, nozzle.
Karakterisasi Spektroskopi Raman pada Purifikasi Mixed Hydroxide Precipitate dari Baterai Lithium Bekas Sedyatama, Deska Anggrait; Perdana, Indra; Sutijan, Sutijan
Proceedings Series on Physical & Formal Sciences Vol. 6 (2023): Prosiding Seminar Nasional Teknik (SENATEK) 2023
Publisher : UM Purwokerto Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30595/pspfs.v6i.852

Abstract

Electrical energy storage batteries are a form of this supporting technology. Lithium batteries are considered the most suitable battery technology for many types of electronic devices today. Waste of used batteries will also increase as LIB production increases. The recycling process is one way to dispose of used batteries because they contain high levels of heavy metals, which pose a significant risk. The most common treatment method for battery recycling is hydrometallurgy. The most important of the various hydrometallurgical steps is the leaching process. The mixed hydroxide precipitate (MHP) will be the product of the precipitation on the NMC metal. Na2SO4 is always an impurity present in MHP products. Therefore, the MHP still needs to be purified to achieve the highest possible purity so that it can be used as a cathode in battery manufacturing. Raman’s spectroscopic was used to analyze the characteristic of MHP purification with variation 30, 50, 70 and 90 oC.
Hak Atas Tanah sebagai Permukiman Penduduk di Daerah Aliran Sungai Kota Tanjungbalai Perdana, Indra; Siregar, Fazriana; Hutama Hutabarat, Dany Try
MODELING: Jurnal Program Studi PGMI Vol 10 No 4 (2023): Desember
Publisher : Program Studi PGMI Sekolah Tinggi Ilmu Tarbiyah Nahdlatul Ulama Al Hikmah Mojokerto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69896/modeling.v10i4.2109

Abstract

The riverbank area is an inseparable part of the water resources management area which cannot be owned and/or controlled by individuals, community groups, or business entities. Tanjungbalai City As a city flanked by 2 major rivers, namely the Silau river which empties into the Asahan river as a city that has many rivers. does not rule out the possibility to make the watershed as a place to live by the people of the city of Tanjungbalai. The purpose of this study is to see the response of the people of Tanjungbalai city who use the watershed as a place to live (housing) and the policies made by the local government to the events that occur. The method used in this study is the empirical juridical method and the observation technique is carried out by using the interview method and analyzing the results of the questionnaire on 35 (thirty five) households who choose the watershed as a place to live. The results in this study are people who live in the watershed due to middle to lower economic factors, as well as the lack of supervision from the local government. And there is no Tanjungbalai City Government Policy on housing and settlements that prohibits building housing in places that are at risk of causing danger.
Co-Authors Agus Prasetya Agus Syahrani Angrum, Alna Triskaya Aprilianto, Doni Riski Aqmarin, Ifni Asfar, Dedy Ari Bernadetha Nadeak Bina, Risa Masdania Kartika Chandra Wahyu Purnomo Dany Try Hutama Hutabarat Debora Demitra Diman, Paul Dwisetyo, Vici Erisyerico, Mimo Lalito Fadillah, Farika Asna Fajar Fajar Gazali Salim Hary Sulistyo Hasanah, Nunur Hasby, Nazar Himawan Tri Bayu Murti Petrus Hinode, Hirofumi Holten Sion, Holten Ilham Ilham Ilham Ilham Islamiah, Neneng Joni Bungai, Joni Kaharap, Mongga Karani, Elannari Karani, Elanneri Kathryn, Morse Kinanti, Divita Hayyu Kristanoval, Kristanoval Kriswantara, Glory Linarto, Lazarus Linggua Sanjaya Usop Manurung, Mangaraja Marhaban, Saiful Maria Arina Luardini Maria Arina Luardini Misrita Misrita, Misrita Muh. Wahyu Syabani Mustika, Pra Cipta Buana Wahyu Nadila, Indriani Najmiah, Lailatun Natalina Asi, Natalina Natasya Nita, Lisa Afria Noviasi Nur Muttaqien Zuhri Nurhasanah Nurhasanah Nurwidyaningrum, Kristanti Nuryoto Oscar, Scherschligt Panut Mulyono Pattiasina, Petrus Jacob Paulina, Novely Esterika Petrus Jacob Pattiasina Petrus Poerwadi Pradnya Paramitha, Putu Elvira Pratiwi, Irda purwaka, albertus Putri, Nelliza Rahman, Muhammad Irfan Rahmat Winata Ramadani, Fitra Ristati, Ristati Rizaldi, Muhammad Rochmadi Rumondang, Rumondang Sanjaya Usop, Linggua Sari, M. Alpian Sasmithae, Lia Sedyatama, Deska Anggrait Silalahi, Juniar Tiurma Uli Silvianti, Annisa Sinuraya, Jusak Kencana Siregar, Fazriana Siti Arnisyah Siti Nurul Aisyiyah Jenie, Siti Nurul Aisyiyah Sitompul, Theresia Friska Damayanti Slamet Sumardi, Slamet Sriwahyuni, Riza Sujoto, Vincent Sutresno Hadi Suryanaga, Edward Chandra Sutijan Syahrunsyah, Syahrunsyah Theasy, Yoan Thesaloga, Rino Umar, Vebrianti Veniaty, Syarah Verawati Verawati Wahyu Imam Santoso Wahyudi Budi Sediawan Wardani Dwi Wihastyanang, Wardani Dwi Warmita, Helena Karunia Weliyadi, Encik Widi Astuti Wildan Habibi Yupita, Yupita