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All Journal Journal of Geoscience, Engineering, Environment, and Technology Pendas : Jurnah Ilmiah Pendidikan Dasar Jurnal Inovator Journal of Renewable Energy and Mechanics Jurnal Kreatif : Desain Produk Industri dan Arsitektur Jurnal Abdi Masyarakat Multidisiplin Jurnalika : Jurnal Ilmu Komunikasi Journal of Multidisciplinary Science: MIKAILALSYS PEDAGOGIC: Indonesian Journal of Science Education and Technology Indonesian Journal of Chemical Engineering Jurnal Akademik Pengabdian Masyarakat JOURNAL OF COMMUNITY SERVICE AND APPLICATION SCIENCE (JCSAS) Scientific Contributions Oil and Gas
Novrianti
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Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Social Sciences Other

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The Laboratory Investigation of the Effect of Calcium Chloride (CaCl₂) Derived from Duck Eggshells on the Thickening Time and Strength of Drilling Cement Novrianti; Rico, Muhammad; Khalid, Idham; Purnamawati, Neneng; Herawati, Ira
Journal of Geoscience, Engineering, Environment, and Technology Special Issue from The 2nd International Conference on Upstream Energy Technology and Digitalization
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/jgeet.2025.10.1.1.24246

Abstract

The thickening time and mechanical strength are vital in the performance of the drilling cement and are usually tested by API standards. The paper determines the role of duck eggshells' calcium chloride (CaCl2) as a natural accelerator on the cement slurry properties. CaCl2 was prepared by a regulating reaction between eggshell powder and 1M HCl and then was mixed with the Class G cement at the 1%, 2%, 3%, and 4% weight proportions. The experimental findings show that the most preferred performance is observed when the CaCl2 is 4 percent, which reduces thickening time to 128 minutes and increases compressive strength to 4,464.62 psi and shear bond strength to 370.28 psi. These results imply that using waste materials as the source of CaCl2 bio-based accelerators would be a viable source that would be environmentally viable in the optimization of drilling cements
Evaluating Petrographic and Mechanical Property Correlations in Sihapas Formation for High-Pressure Hydraulic Fracturing Using Pearson and Spearman Methods Prayitno, Budi; Akhillah, Daffa; Novrianti; Fitiransyah, Dike; Panuh, Dedikarni
Scientific Contributions Oil and Gas Vol 49 No 1 (2026)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/scog.v49i1.1999

Abstract

This study aimed to evaluate the suitability of natural frac sand (SiO₂) from the Sihapas Formation as a proppant for hydraulic fracturing in unconventional oil and gas reservoirs in Riau Province, Indonesia. Quantitative–qualitative evaluation in hydraulic fracturing systems is conducted to assess the performance of quartz grains (SiO₂) in enhancing and maintaining fluid flow conductivity under the influence of stress, formation blockage, and chemical interactions. Sieve distribution analysis was performed to determine particle size distribution, crush resistance testing was conducted to evaluate mechanical strength, and X-Ray Diffraction (XRD) was used to characterize mineral composition. The correlative relationships among parameters were further analyzed using Pearson and Spearman statistical methods, with API RP 56 (frac sand) and API 19C (proppant) standards serving as benchmarks. The results showed that the 40/70 mesh fraction dominates across samples, though roundness values fall below specification thresholds while sphericity remains within acceptable ranges. Grain hardness testing at 5000 psi showed relatively high destruction rates, while mineralogical analysis confirmed a consistently high SiO₂ composition (≥98%) with secondary clay minerals. Elevated turbidity and alkaline pH values were also observed. Statistical analysis showed strong correlations among parameters, reflecting the influence of geological transport processes on grain morphology and mineral decomposition due to diagenetic processes. In general, these findings showed that natural frac sand samples do not fully meet API standards, highlighting the need for innovation and direct well testing to enhance material quality for hydraulic fracturing applications.
PENGARUH MEDIA AUDIOVISUAL TERHADAP KREATIVITAS BERPIKIR SISWA PADA MATA PELAJARAN INFORMATIKA KELAS VII DI SMPN 1 X KOTO DIATAS Siti Nabilah Raisah AR; Novrianti; Mutiara Felicita Amsal; Reni Kurnia
Pendas : Jurnal Ilmiah Pendidikan Dasar Vol. 11 No. 02 (2026): Volume 11 Nomor 02, Juni 2026 Published
Publisher : Program Studi Pendidikan Guru Sekolah Dasar FKIP Universitas Pasundan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23969/jp.v11i02.48378

Abstract

Penelitian ini dilatarbelakangi oleh rendahnya kreativitas berpikir siswa dalam pembelajaran Informatika akibat dominannya metode pembelajaran konvensional dan minimnya penggunaan media pembelajaran interaktif. Siswa cenderung hanya mencatat materi dan kurang aktif selama proses pembelajaran berlangsung. Oleh karena itu, penelitian ini bertujuan untuk mengetahui pengaruh media audiovisual terhadap kreativitas berpikir siswa pada materi Sistem Komputer kelas VII SMPN 1 X Koto Diatas. Penelitian ini menggunakan pendekatan kuantitatif dengan metode eksperimen. Partisipan penelitian berjumlah 41 siswa yang dibagi menjadi dua kelompok, yaitu kelas eksperimen yang menggunakan media audiovisual dan kelas kontrol yang menggunakan media PowerPoint. Pengumpulan data dilakukan melalui angket kreativitas berpikir yang telah diuji validitas dan reliabilitasnya. Penelitian dilaksanakan pada tahun ajaran 2024/2025. Teknik analisis data menggunakan statistik deskriptif dan uji prasyarat analisis untuk mengetahui perbedaan hasil kedua kelas. Hasil penelitian menunjukkan bahwa kelas eksperimen memperoleh skor kreativitas berpikir lebih tinggi dibandingkan kelas kontrol. Kelas eksperimen memperoleh rata-rata 145,95 dengan skor tertinggi 181 dan skor terendah 106, sedangkan kelas kontrol memperoleh rata-rata 138,14 dengan skor tertinggi 160 dan skor terendah 98. Kesimpulan penelitian menunjukkan bahwa media audiovisual berpengaruh signifikan dalam meningkatkan kreativitas berpikir siswa pada pembelajaran Informatika. Implikasi penelitian ini adalah media audiovisual dapat digunakan sebagai media pembelajaran yang efektif, interaktif, dan inovatif untuk meningkatkan partisipasi, pemahaman, dan kualitas belajar siswa.
Perancangan Mesin Pengiris Tempe Ergonomis Daumi Rahmatika; Novrianti; Hari Purnomo
Jurnal INOVATOR Vol. 3 No. 2 (2020): Jurnal INOVATOR
Publisher : LPPM Politeknik Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37338/inovator.v3i2.132

Abstract

As Small and Medium size enterprise(SME) still using manual and simple tools in their operation as done by Bude Wagino SME which is located at Sungai Bahar,Batanghari. This SME specialized at making kripik Tempe(Tempe chips). Based on observation and interview at the SME, the workers complain that they experience over fatigue, back pain and sore muscle in their arms. The purpose of this research is to design ergonomic slicer tempe tools by using  ENASE concept. This research using mixed method which using antropometri data such as height of sitting elbow,normal range,far reach, and grip width as quantitative method. As qualitative method used for interview the workers. The data of workers percentile will be used as based design of the tools.By using the tool will be expected to decrease the workers complain and can increase the productivity.
Pengaruh Penambahan Karbon Aktif pada Komposit Serat Daun Nenas dengan Matriks Polyester Yulianto, Dody; Sabar Marojahan Pangaribuan, Nobel; Dedikarni; Elfiano, Eddy; Novrianti
Journal of Renewable Energy and Mechanics Vol. 5 No. 01 (2022): REM VOL 5 NO 01 2022
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/rem.2022.6341

Abstract

Bahan baku serat nenas merupakan salah satu jenis kekayaan sumber daya alam yang belum dapat di manfaatkan secara optimal, sehingga perlu dilakukan penelitian pengembangan teknologi komposit serat alam dengan memanfaatkan serat daun nenas dan resin polyester. Adapun tujuan penelitin ini adalah untuk mendapatkan pengaruh variasi karbon aktif terhadap kekuatan tarik dan bending pada material komposit serat daun nenas dan matriks polyester, untuk mendapatkan struktur mikro terhadap penambahan karbon aktif pada komposit serat daun nenas dan matriks polyester. Pada penelitian ini cetakan terbuat dari kaca dengan ketebalan 8mm, panjang 150 mm, dan lebar 100 mm, metode yang digunakan pada pembuatan sampel menggunakan metode lay out dengan temperature ruangan dan susunan serat searah, dengan variasi susunan 30% serat daun nenas + 69% matriks + 1% karbon aktif, 30% serat daun nenas + 68,5% matriks + 1,5% karbon aktif, 30% serat daun nenas + 68% matriks + 2% karbon aktif, dan 100% resin polyester. Hasil dari penelitian yang telah saya lakukan di dapat kekuatan bending yang tertinggi pada penambahan karbon aktif 1% dengan nilai 33,29 N/mm2, dan pada hasil uji tarik di dapat nilai tertinggi pada penambahan karbon aktif 1% dengan nilai 16,75 N/mm2. Sedangkan pada pengujian foto makro di dapatkan diameter dan jarak yang tertinggi pada penambahan karbon aktif sebesar 1,5%. Pengaplikasian pada penelitian adalah untuk pembuatan polytank air pada rumah tangga.
The Laboratory Investigation of the Effect of Calcium Chloride (CaCl₂) Derived from Duck Eggshells on the Thickening Time and Strength of Drilling Cement Novrianti; Rico, Muhammad; Khalid, Idham; Purnamawati, Neneng; Herawati, Ira
Journal of Geoscience, Engineering, Environment, and Technology Special Issue from The 2nd International Conference on Upstream Energy Technology and Digitalization
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/jgeet.2025.10.1.1.24246

Abstract

The thickening time and mechanical strength are vital in the performance of the drilling cement and are usually tested by API standards. The paper determines the role of duck eggshells' calcium chloride (CaCl2) as a natural accelerator on the cement slurry properties. CaCl2 was prepared by a regulating reaction between eggshell powder and 1M HCl and then was mixed with the Class G cement at the 1%, 2%, 3%, and 4% weight proportions. The experimental findings show that the most preferred performance is observed when the CaCl2 is 4 percent, which reduces thickening time to 128 minutes and increases compressive strength to 4,464.62 psi and shear bond strength to 370.28 psi. These results imply that using waste materials as the source of CaCl2 bio-based accelerators would be a viable source that would be environmentally viable in the optimization of drilling cements
Development of Augmented Reality Learning Media Based on Assemblr Studio Web for Grade VII Junior High School Informatics Subjects Bella Anjani; Fetri Yeni J; Novrianti; Fitri Maiziani
Journal of Multidisciplinary Science: MIKAILALSYS Vol 4 No 3 (2026): Journal of Multidisciplinary Science: MIKAILALSYS
Publisher : Darul Yasin Al Sys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/mikailalsys.v4i3.11539

Abstract

Local Area Network (LAN) concepts in the seventh-grade Informatics curriculum are relatively abstract, making it difficult for students to understand network topologies, inter-device relationships, and data communication processes. This study aimed to develop Augmented Reality (AR)-based learning media using Assemblr Studio Web and evaluate its validity and practicality for teaching LAN concepts. The study employed a Research and Development approach based on the 4D model, comprising the define, design, develop, and disseminate stages. Conducted at SMP Negeri 4 Palupuh, the study involved one subject-matter expert, two media experts, and 24 seventh-grade students. Data were collected using validation sheets and practicality questionnaires and analysed through mean scores and percentages. The findings showed that the developed learning media obtained a material validity score of 4.46 and a media validity score of 4.74, both of which were categorised as highly valid. The practicality assessment yielded a score of 86%, indicating that the media was highly practical for classroom use. The AR-based media provided interactive visualisations of Bus, Star, and Ring network topologies, thereby facilitating students’ understanding of LAN structures, relationships among devices, and data communication processes. The study concludes that the developed AR learning media is valid and practical for use in seventh-grade Informatics instruction. These findings demonstrate the potential of AR technology to support the concrete visualisation of abstract concepts, promote interactive learning, and strengthen the pedagogical integration of digital technology in Informatics education.
PENGEMBANGAN MULTIMEDIA INTERAKTIF PADA MATERI COMPUTATIONAL THINKING MATA PELAJARAN INFORMATIKA KELAS VII SMP Fernando, Erik; Novrianti; Pratiwi, Rahmi; Masriani, Elsa
Pendas : Jurnal Ilmiah Pendidikan Dasar Vol. 11 No. 02 (2026): Volume 11 Nomor 02, Juni 2026 Published
Publisher : Program Studi Pendidikan Guru Sekolah Dasar FKIP Universitas Pasundan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23969/jp.v11i02.50530

Abstract

This research and development (R&D) study aimed to produce an interactive multimedia learning media using Scratch 3.0 on the Computational Thinking topic for Grade VII students at SMP Negeri 15 Padang. The development model employed was the 4D model (Define, Design, Develop, Disseminate) proposed by Thiagarajan et al. (1974). The interactive multimedia integrates text, images, animations, audio, and interactive quizzes to provide an engaging, student-centered learning experience. Validity assessment was conducted by one subject matter expert (content validity 92.85%, very Valid) and two media experts (media validity 97.5% and 98.75%, both very Valid). Practicality testing involving 31 Grade VII students yielded an overall score of 91.5% (very Practical). These results demonstrate that the interactive multimedia developed is both valid and practical for use in Informatika learning, particularly for improving students’ Computational Thinking skills through algorithmic and visual programming experiences.
PENGEMBANGAN MEDIA SMART CARD BERBASIS AUGMENTED REALITY PADA MATA PELAJARAN IPA TOPIK KERANGKA MANUSIA KELAS VIII SMP Almajri, Fiqri; Novrianti; Masnur, Alkadri; Masriani, Elsa
Pendas : Jurnal Ilmiah Pendidikan Dasar Vol. 11 No. 03 (2026): Volume 11 Nomor 03, September 2026 Published
Publisher : Program Studi Pendidikan Guru Sekolah Dasar FKIP Universitas Pasundan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23969/jp.v11i03.57496

Abstract

This research and development (R&D) study aimed to produce a Smart Card learning media based on Augmented Reality (AR) on the Human Skeleton topic for Grade VIII students at SMP Negeri 34 Padang. The development model employed was the 4D model (Define, Design, Develop, Disseminate) proposed by Thiagarajan et al. (1974). The Smart Card integrates text, images, 3D animations, and narrated audio to provide an engaging, student-centered learning experience. Validity assessment was conducted by one subject matter expert (content validity 94.12%, Very Valid) and two media experts (media validity 98.67%, both Very Valid). Practicality testing involving 29 Grade VIII students yielded an overall score of 93.79% (Very Practical). These results demonstrate that the Smart Card based on Augmented Reality developed is both valid and practical for use in science learning, particularly for improving students' understanding of the human skeletal system.
PENGEMBANGAN MULTIMEDIA INTERAKTIF BERBASIS PROJECT BASED LEARNING (PJBL) MATERI MENYUSUN ALGORITMA SEDERHANA (SCRATCH) PADA MATA PELAJARAN INFORMATIKA KELAS VIII SMP Rahma, Hajratul; Novrianti; Ade Kurnia Yusri , Meldi; Masnur , Alkadri
Pendas : Jurnal Ilmiah Pendidikan Dasar Vol. 11 No. 02 (2026): Volume 11 No. 2, Juni 2026 Release
Publisher : Program Studi Pendidikan Guru Sekolah Dasar FKIP Universitas Pasundan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23969/jp.v11i02.58248

Abstract

This research aims to develop interactive multimedia based on Project Based Learning (PjBL) for the material of Composing Simple Algorithms (Scratch) in Informatics subject for Grade VIII students at SMPS IT Dar El Iman Padang. The 4D development model (Define, Design, Develop, Disseminate) by Thiagarajan et al. (1974) was employed. The Define stage identified that learning still relied entirely on direct demonstration and conventional job sheets, with no interactive media available for independent study, and high rates of students failing to meet learning mastery. The Design stage produced a web-based product called 'Scratch Project' integrating PjBL syntax into structured multimedia content. The Develop stage yielded a product validated by two media experts (average score 98.5%) and one content expert (95.79%), both categorized as 'Very Valid'. Practicality testing involving 23 Grade VIII students resulted in an average score of 89%, categorized as 'Very Practical'. The Disseminate stage was conducted on a limited scale by distributing the product link directly to students and teachers. This study concludes that the PjBL-based interactive multimedia is valid and practical for use in Informatics learning.
Co-Authors Abna Hidayati Ade Kurnia Yusri , Meldi Aditya Padini Syah Akhillah, Daffa Alkadri Masnur Almajri, Fiqri Ardhani, Aulya Ayyi Husbani Baehaqi Bella Anjani Budi Prayitno Daumi Rahmatika Dedikarni Eddy Elfiano Erlangga Oktavio, Duta Fernando, Erik Fetri Yeni Fetri Yeni J Fitiransyah, Dike Fitri Maiziani Fitri Nurzana Handayani, Corry Hari Purnomo Husbani, Ayyi Imam Bayhaqi Imelda Adima Putri Indrawaty , Novi Ira Herawati, Ira Irwan Anwar Juwita, Fitri Yeni Lisa Candra Sari Maiziani, Fitri Martin Kustanti Masnur , Alkadri Masriani, Elsa Meldi Ade Kurnia yusri Melysa, Richa Mutiara Felicita Amsal Nadilla Neneng Purnamawati Nensy Purziana Novrianti Ochi Willya Chevrananda Rahma, Hajratul Rahmi Pratiwi Rahmi Pratiwi, Rahmi Reni Kurnia Rezki Amelia Richa Melysa RICO, MUHAMMAD Rindi Wulansari Sabar Marojahan Pangaribuan, Nobel Siti Nabilah Raisah AR Teguh Sahibillah Alfajri wahyudi. S, fazril wahyudi.s Widia Ierdiana Winanti, Risa Yolly Adriatic Yulianto, Dody Zen, Zelhendri