Results 81 to 90 of about 308,223 (363)

The effects of worked examples presentation on sub-cognitive loads [PDF]

, 2017
One promising technique for helping students in fulfilling complex problem solving tasks is through learning with worked example. Although worked example approach is the most prominent technique discussed in the literature of cognitive load theory, there
Abd Latif, Amirah, Awang, Noor Azura, Basri, Hatijah, Muhamad Zamri, Ain Zamira, Muhammad, Nur Ainnaa Mardhiah, Nik Mahmud, Nik Noor Haryatul Eleena, Zalkepali, Noor Ummi Hazirah Hani   +6 more
core   +1 more source

Response surface analysis for optimisation of reaction parameters of biodiesel production from alcoholysis of Parinari polyandra seed oil

International Journal of Sustainable Energy, 2019
Availability of information on the efficiency of applied conditions to biodiesel synthesis from diverse seed oil can establish optimal biodiesel yield from favourable reaction variables.
Oyetola Ogunkunle, Noor A. Ahmed
doaj   +1 more source

Environmentally Friendly Nanofiber Cellulose From Durian Rinds: A Sustainable Alternative Biomass Resource

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT A novel, efficient, and eco‐friendly sustainable process has been developed for the extraction of cellulose nanofibers (CNF) from durian rinds. The method utilizes low‐molecular‐weight 2,2,6,6‐tetramethylpiperidine‐1‐oxyl (TEMPO) as an oxidation agent, in conjunction with sonication treatment, resulting in a significant reduction of processing
Nyoman Puspa Asri, Minarni Wartiningsih, Chintya Gunarto, Antonius Jimmy Widagdo, Yohannes Somawiharja, Yustia Wulandari Mirzayanti, Jia‐Ming Chern, Suryadi Ismadji   +7 more
wiley   +1 more source

Advancing biodiesel production from microalgae Spirulina sp. by a simultaneous extraction–transesterification process using palm oil as a co-solvent of methanol

Open Chemistry, 2020
Microalgae have been considered as a potential candidate for biodiesel feedstock. Single-stage simultaneous extraction–transesterification process is proposed for simpler and more effective biodiesel conversion. In this study, the experiment of biodiesel
Pradana Yano Surya, Dewi Resti Nurmala, Di Livia Kanadya, Arisa Farida, Rochmadi, Cahyono Rochim Bakti, Budiman Arief   +6 more
doaj   +1 more source

Ensiling and Fermentation of Rice Hulls With Ruminal Fluid for Medium‐Chain Carboxylate Production

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Large quantities of rice hulls are common at milling sites in Nigeria. They are a by‐product of rice processing and can contribute to environmental degradation if not properly managed. In this study, rice hulls were pretreated by ensiling at ambient temperature and then used as substrate for medium‐chain carboxylates (MCCs) production ...
Jerome Undiandeye, Silas Kiman, Ebenezer Leke Odekanle, Peter Anyin   +3 more
wiley   +1 more source

The Transesterification of Hickory Nuts into Biodiesel Fuel [PDF]

, 2019
• Biodiesel fuels can be produced from a fat and an alcohol via transesterification • Hickory nuts have a high fat content (~60 % by weight) • Can nuts from shagbark hickory (Carya ovata) be used to produce a biodiesel fuel using existing acidcatalyzed ...
Dewell, Madilynn, Mendoza, Jahida A., Trauger, Hannah   +2 more
core   +1 more source

Intensified processes for FAME production from waste cooking oil: a technological review [PDF]

, 2013
This article reviews the intensification of fatty acid methyl esters (FAME) production from waste cooking oil (WCO) using innovative process equipment. In particular, it addresses the intensification of WCO feedstock transformation by transesterification,
Aubin, Joelle, Mazubert, Alex, Poux, Martine   +2 more
core   +3 more sources

Application of Heterogeneous Catalysts for Biodiesel Production from Microalgal Oil—A Review

Catalysts, 2020
The depletion of fossil fuel reserves and increased environmental concerns related to fossil fuel production and combustion has forced the global communities to search for renewable fuels. In this regard, microalgae-based biodiesel has been considered as
M. Faruque, S. Razzak, Mohammad. M. Hossain   +2 more
semanticscholar   +1 more source

Hydrogen‐Enriched Microbial Oil Biodiesel With Hybrid Nanoparticles Impact on Diesel Engine Efficiency and Emissions

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT This study examines a dual‐fuel enhancement strategy that combines hydrogen enrichment with hybrid nanoparticle (HNP) doping. The aim is to improve combustion, performance, and emission characteristics of microbial oil biodiesel (MOB) in compression ignition engines.
D. Premkumar, S. Senthil Kumar, K. R. Padmavathi, Prajith Prabakar   +3 more
wiley   +1 more source

Review of Biodiesel Analysis inside Ecological Impacts and Future Developments

Rekayasa Hijau: Jurnal Teknologi Ramah Lingkungan
ABSTRAK Biodiesel telah menjadi semakin populer sebagai pengganti yang layak untuk sumber energi yang tidak terbarukan, yang menjadi semakin langka. Biodiesel diproduksi dari berbagai jenis minyak nabati maupun minyak hewani.
Ardi Yohanes, Muhammad Naufal Aliefiansyah, Riny Yolandha Parapat   +2 more
doaj   +1 more source