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PENGARUH KONSENTRASI KATALIS KOH, MgO DAN CaO PADA PEMBUATAN BIODIESEL DENGAN PROSES TRANSESTERIFIKASI
Jurnal Inovasi Teknik Kimia
Vol 10
, No 2
(2025)
Biodiesel dapat didefinisikan sebagai ester monoalkil yang dapat dihasilkan dari bahan alami yang terbarukan seperti minyak nabati dan hewani. Bahan bakar ini berpotensi untuk digunakan sebagai bahan bakar alternatif pengganti solar karena sifatnya yang mirip. Selain itu, biodiesel yang berasal dari minyak nabati merupakan bahan bakar terbarukan (renewable), mudah ditangani, tidak menghasilkan polutan berbahaya bagi lingkungan (tidak beracun), mudah terurai secara alami, emisi berbahaya dari pem...
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PENINGKATAN KUALITAS BATUBARA LOW RANK MENGGUNAKAN CAMPURAN MINYAK JELANTAH DAN MINYAK PELUMAS BEKAS MELALUI PROSES UPGRADING BROWN COAL (UBC)
Jurnal Inovasi Teknik Kimia
Vol 10
, No 2
(2025)
Pada saat ini banyak sekali teknologi yang sedang gencar dikembangkan untuk meningkatkan nilai jual dari berbagai macam produk salah satunya teknologi upgrading brown coal yang mana teknologi ini berfungsi untuk menurunkan kandungan air atau moisture dalam batubara sehingga nilai kalori batubara akan meningkat. Pada penelitian ini penurunan kadar air yang berada didalam pori-pori batubara dilakukan dengan pemanasan. Proses pemanasan nantinya akan mengosongkan pori-pori batubara dari kandun...
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Analysis of Physics Assessments Designed by Science Teachers at Junior High School
Jurnal Penelitian Pembelajaran Fisika
Vol 16
, No 2
(2025)
This study aims to analyze the suitability of physics assessments designed by science teachers at the junior high school level by paying attention to good assessment criteria. This type of research is descriptive-qualitative, involving three teachers in junior high school. The data collection technique is in the form of assessment archive documentation. The assessment analyzed was divided into three documents, namely motion and force, simple aircraft and static electricity. Data analysis techni...
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Development of Electromagnetic-Based Physical Pendulum Practical Tools Using Infrared Sensors
Jurnal Penelitian Pembelajaran Fisika
Vol 16
, No 2
(2025)
Abstract. Basic physics practicums often face measurement accuracy constraints due to limited tools and human error. This study aims to develop an electromagnetic-based physical pendulum practicum tool using an infrared sensor and measure its feasibility in basic physics practicum lectures 1. The method used is Research and Development (R&D) with a descriptive quantitative approach and a 3D development model. The data analysis technique uses a Likert scale with a range of 1-5 which is conver...
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2 Sitasi
PELATIHAN PENINGKATAN KEAHLIHAN DESAIN GRAFIS UNTUK MENUNJANG SARANA KOMUNIKASI PADA YAYASAN MASJID AL-FATTAH SEMARANG
prabowo, dwi puji
; Bastian , Henry
; Hasyim, Noor
; Muqoddas, Ali
; Rifan, Arif
; Mustagfirin, Mustagfirin
; Adji, Nugroho
Jurnal Pengabdian Masyarakat Unwahas
Vol 10
, No 1
(2025)
Masjid merupakan lembaga pendidikan pertama di dunia Islam dan merupakancommunity center umat Islam. Yayasan Masjid Al Fattah merupakan lembaga yangmenjadi panitia pembangunan masjid Al Fattah. Masjid Al Fattah saat ini kesulitandalam membuat media komunikasi dan administrasi untuk kegiatan masjid, Sepertihal kegiatan hari-hari besar islam, membuat konten media promosi kegiatan masjid,dan lain sebagainya. Hal tersebut tentu saja karena kurangnya pengalaman takmirdan yayasan masjid terhadap desai...
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Enhancing Functional Foods with Plant Extracts: A Study on Gummy Candies Containing Sungkai Leaf Extract
Nurhasanah, Siti
; Muhaimin
; Pyopyash , Sverigenia Aprilia
; Zaida
; Pangawikan, Aldilla Din Pangawikan
Advance Sustainable Science, Engineering and Technology (ASSET)
Vol 7
, No 2
(2025)
Gummy candy is a popular food product, but it is generally high in calories and low in functional content. Sungkai leaves (Peronema canescens Jack) are known to contain antioxidant compounds that have the potential to be developed as functional food ingredients. To overcome the high calorie content of gummy candy, this study developed a low-calorie gummy candy formulation with the addition of encapsulated sungkai leaf extract and a low-calorie sweetener. This study aims to determine the optimal...
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Kinetic and Equilibrium Study of Synthetic Dye Adsorption Using Alkali-Activated Scallop Shells as Sustainable Adsorbents
Advance Sustainable Science, Engineering and Technology (ASSET)
Vol 7
, No 2
(2025)
Scallop shells are abundant in Indonesia, particularly along the northern coast of Java Island in Pekalongan Regency. These shells serve as natural adsorbents for removing synthetic textile dyes from aqueous solutions due to their high mineral content, especially calcium carbonate. Adsorption experiments were conducted to evaluate the potential of scallop shells as adsorbents for removing vat dye solutions. Adsorption kinetics were analyzed using pseudo-first-order and pseudo-second-order models...
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Group Strengthening Education and Farming Science in Empowering KWT Sawung Martani
Nurdiana, Ulfah
; Rizqul Karim, Akhmad
; Nadeira Mandamdari, Alpha
; Saputro, Wahyu Adhi
; Risa Utami, Dewanti
Indonesian Journal of Empowerment and Community Service
Vol 6
, No 1
(2025)
Empowerment can be done through women's groups that exist in an area. One of the right forums is a women's farmer group. KWT Sawung Martani is a women's farmer group that exists in Banyumas Regency. Based on the analysis of the problem situation, there are two main problems in KWT Sawung Martani, namely the lack of group activity and the ignorance of group members regarding the profits and losses of the plant cultivation they are carrying out. This community service activity aims to provide educ...
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Literature Review Pemanfaatan Cangkang Kerang Sebagai Absorben Limbah Kimia: Pendekatan Ekologi Lingkungan Untuk Pengelolaan Sumber Daya Alam yang Berkelanjutan
Jurnal Media Administrasi
Vol 10
, No 1
(2025)
The utilization of clam shells as adsorbents has attracted considerable attention due to their ability to adsorb contaminants such as heavy metals, hazardous substances, and oil. Clam shells, which are composed mainly of calcium carbonate (CaCO₃), possess a porous structure that favors adsorption. Calcium carbonate imparts alkaline properties that neutralize acidic effluents and promote the formation of precipitates. Physical and chemical modifications can enhance the surface area and porosity o...
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Pengaruh Penerapan Standar Akuntansi UMKM Terhadap Kualitas Laporan Keuangan UMKM Pada UMKM Tercatat di Kecamatan Lakarsantri
JURNAL EKONOMI MANAJEMEN AKUNTANSI
Vol 31
, No 1
(2025)
The purpose of this study is to assess how the Financial Accounting Standard for Micro, Small, and Medium Entities (SAK EMKM) has improved the quality of financial statements of businesses in Lakarsantri Sub-district. Using a survey-based quantitative research methodology, information was collected from 40 MSME respondents through questionnaires. Partial Least Square (PLS) analysis was conducted on the data using WarpPLS software version 8.0. The results show that the implementation of SAK EMKM...
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