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Barium Removal from Produced Water Using RCC-Based Ceramic Adsorbent: Fixed-Bed Column Adsorption
Advance Sustainable Science, Engineering and Technology
Vol 7
, No 4
(2025)
This study focuses on the removal of barium ions (Ba²⁺) from produced water, a common challenge in industrial wastewater treatment due to barium’s toxicity and scaling potential. To address this, the research introduces a novel ceramic composite adsorbent formulated from natural clay and residue catalytic cracking (RCC) spent catalyst, combining low cost, sustainability, and enhanced adsorption performance. The main objective is to evaluate the adsorption efficiency of this composite in a fixed-...
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SINTESIS MEMBRAN AKRILONITRIL BUTADIENA STIRENA TERMODIFIKASI FILLER SULFONASI GRAFENA OKSIDA TEREDUKSI DAN CERIUM OKSIDA
Iskandar, Riska Listiarini
; Dampang, Sarah
; Hakim, Muhammad Fahmi
; Perdani, Meka Saima
; Siswantito, Firgi
; Widianto, Eri
; Fauji, Najmudin
Jurnal Inovasi Teknik Kimia
Vol 10
, No 4
(2025)
The utilization of Acrylonitrile Butadiene Styrene (ABS) polymer as an alternative membrane for Direct Methanol Fuel Cell (DMFC) applications has been investigated. This study aims to evaluate the effect of sulfonation temperature on the performance of ABS membranes modified with reduced graphene oxide/cerium oxide (s-rGO/CeO₂). The membranes were synthesized via sulfonation at 65 °C, 75 °C, and 85 °C, with a filler composition of 3% v/v. The results indicate that the addition of filler signific...
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ANALISIS KESALAHAN NUMERASI SISWA SMA DALAM MENYELESAIKAN SOAL MATEMATIKA BERBASIS AKM BERDASAKAN METODE NEWMAN
JIPMat (Jurnal Ilmiah Pendidikan Matematika)
Vol 10
, No 2
(2025)
Tujuan penelitian ini adalah untuk memeriksa kesalahan numerasi siswa SMA dalam soal matematika berbasis Asesmen Kompetensi Minimum (AKM) dengan menggunakan metode Newman. Metode ini mengidentifikasi kesalahan siswa dalam lima langkah: membaca, memahami, transformasi, keterampilan proses, dan penulisan jawaban. Siswa di kelas XII SMA Negeri 1 Kajen, yang dipilih berdasarkan hasil tes numerasi AKM, adalah subjek penelitian. Hasil penelitian menunjukkan bahwa kesalahan terbesar terjadi pada tahap...
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Development of Interactive Learning Media Based on Digital Platforms to Improve Critical Thinking Skills in Primary School Science Education
Jurnal Penelitian Pembelajaran Fisika
Vol 16
, No 4
(2025)
The study aims to analyze how the use of interactive learning media based on digital platforms impacts students' critical thinking skills. By collecting quantitative and qualitative data, it is hoped that comprehensive information can be obtained regarding the extent to which interactive learning media influences the development of students' critical thinking skills. The methods used are qualitative analysis: Using ADDIE analysis to identify themes and patterns that emerge from interviews and ob...
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Strengthening Literacy of ABACAGA Method at PNF PKBM KRI Embassy Malaysia
Sholiha, Faridatus
; Aini, Faradila
; Mahsun, Mohamad
; Idris, Haidar
; Bakhri, Saiful
; Arifin, Zainul
; Muttaqin, Ahmad Ihwanul
; Ulumudin, Ihya’
; Masyhuri, Muhammad
; Arifin, Syamsul
; Sidiq, Muhammad Abdul Halim
Indonesian Journal of Empowerment and Community Service
Vol 6
, No 2
(2025)
ABSTRACT
Some Indonesian students aged 10–12 at the Indonesian Embassy in Malaysia's PNF Learning Center (PKBM PNF) still demonstrate low basic literacy skills. This condition is related to family backgrounds that do not have clear legal status due to unregistered marriages and the lack of valid citizenship documents. In addition, parental involvement in accompanying children's learning process at home is relatively low due to the demands of full-time work. This study aims to accompany and impro...
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Empowerment of Persons with Disabilities with Blind Jatabek through Tuina Chuzhen Massage Therapy Training
Japaries, Willie
; Wijono Sukaputra Agussalim
; Hedi Suanto Tjong
; Metta Sari
; Erni Chrisilia Suhendry
; Aditya Prabowo Audisapta
; Ony Susita
; Adrianus Suyadi, S.J.
; Anastasia S.P
; Dian Susanti
; Sutrisno
; R.M. Alfian
Indonesian Journal of Empowerment and Community Service
Vol 6
, No 2
(2025)
ABSTRACT
Background: People with disabilities, especially the blind, are members of society who have limited vision. Therefore, they require specific methods to learn certain skills to earn a living. One such skill suitable for the blind is massage therapy, which can be learned without relying on sight, but relying on the sense of touch. Purpose: This paper aims to describe the experience of training blind people to perform a special massage treatment called Tuina Chuzhen. Methods: The experienc...
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ANALISIS IMPLEMENTASI ASESMEN AUTENTIK DALAM PEMBELAJARAN MATEMATIKA DI SEKOLAH MENENGAH KEJURUAN
JIPMat (Jurnal Ilmiah Pendidikan Matematika)
Vol 10
, No 2
(2025)
Penelitian ini dilatarbelakangi oleh kenyataan bahwa asesmen dalam pembelajaran matematika di SMK masih didominasi oleh tes tertulis yang belum sepenuhnya mencerminkan kemampuan nyata siswa dalam konteks kehidupan dan dunia kerja. Tujuan dari penelitian ini adalah untuk mengeksplorasi bagaimana asesmen autentik diterapkan oleh guru, bentuk-bentuk yang digunakan, serta tantangan yang dihadapi dalam pelaksanaannya. Menggunakan pendekatan kualitatif deskriptif, data dikumpulkan melalui observasi ke...
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ANALISIS KEMAMPUAN LITERASI MATEMATIKA PESERTA DIDIK SEKOLAH DASAR DITINJAU DARI GAYA BERPIKIR
JIPMat (Jurnal Ilmiah Pendidikan Matematika)
Vol 10
, No 2
(2025)
Penelitian ini bertujuan untuk menganalisis kemampuan literasi matematika peserta didik Sekolah Dasar ditinjau dari gaya berpikir. Metode penelitian yang digunakan adalah pendekatan kualitatif dengan metode deskriptif, dengan instrumen berupa tes literasi matematika, angket gaya berpikir, wawancara, dan observasi. Metode triangulasi yang digunakan oleh peneliti yaitu berupa obersevasi, angket, dan wawancara mendalam untuk menganalisis data melalui tahap reduksi, penyajian, dan penarikan kesimpu...
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Rancang bangun sistem presensi berbasis artificial intelligence menggunakan microservice pada flask
IT-Explore: Jurnal Penerapan Teknologi Informasi dan Komunikasi
Vol 4
, No 3
(2025)
Conventional attendance systems often face various problems such as inefficiency, inaccuracies in attendance logging, and limitations in recapitulation processes. Manual systems are prone to human error and time-consuming, while fingerprint-based systems may fail when the sensor is affected by dirty, wet, or damaged fingers. This study aims to develop an attendance system based on Artificial Intelligence (AI) by utilizing the face_recognition function in Python and implementing a microservice ar...
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Sistem pengambilan keputusan untuk pemilihan lokasi usaha menggunakan metode electre berbasis website
IT-Explore: Jurnal Penerapan Teknologi Informasi dan Komunikasi
Vol 4
, No 3
(2025)
Choosing a strategic business location is a key factor in building a successful enterprise, especially in Lautem Municipality, Timor-Leste. This area presents various opportunities for businesses such as grocery shops, small restaurants, repair workshops, and agricultural ventures. However, entrepreneurs often face challenges like poor road infrastructure, limited purchasing power, and inadequate transport access. This study developed a web-based Decision Support System (DSS) using the ELECTRE m...
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