Results 41 to 50 of about 34,563 (277)

Two‐Way Shape Memory Polymer Composite Gripper for Adaptive Robotic Applications

Advanced Materials Technologies, EarlyView.
A two‐way shape memory polymer (SMP) composite is developed with intrinsic shape‐changing capability driven solely by temperature, eliminating external actuation loads. Embedding the SMP in a low‐stiffness elastomeric matrix enabled reversible transformations during heating and cooling cycles.
Aamna Hameed, Kamran Ahmed Khan
wiley   +1 more source

Production of Biodiesel from Chicken Frying Oil [PDF]

Pakistan Journal of Analytical & Environmental Chemistry, 2011
Chicken fried oil was converted into different biodiesels through single step transesterification and two step transesterification, namely acid-base and base–base catalyzed transesterification. Hydrochloric acid and potassium hydroxide with methanol were
Emaad T. Bakir, Abdelrahman B. Fadhil
doaj  

NUDT21 Drives T‐Cell Acute Lymphoblastic Leukemia Through Dual Regulation of Alternative Polyadenylation and Transcriptional Activation

Advanced Science, EarlyView.
In summary, our study defines a coordinated oncogenic model in which NUDT21 integrates alternative polyadenylation–dependent UBE2D3 stabilization and transcriptional activation to sustain MYC‐driven T‐ALL cell survival, thereby establishing NUDT21 as a central regulatory node and a promising therapeutic target.
Conglian Qiu, Jianwei Wang, Zhiheng Li, Qi Ji, Hui Zhang, Qinyi Zhang, Senlin Zhang, Juanjuan Yu, Yanfang Tao, Yijun Wu, Chunxia Shi, Zong Zai, Zimu Zhang, Yizhen Li, Zhenjiang Bai, Shaoyan Hu, Jian Pan, Yang Yang, Shuiyan Wu   +18 more
wiley   +1 more source

Penggunaan Ultrasonik untuk Transesterifikasi Minyak Goreng Bekas

Jurnal Rekayasa Kimia & Lingkungan, 2011
In this work, the ultrasound-assisted transesterification of used frying oil (UFO) was studied. A two-step pretreatment of degumming and esterification was conducted to prepare UFO as raw material for transesterification.
Muhammad Dani Supardan
doaj   +2 more sources

Using hydrotalcite for biodiesel production [PDF]

, 2009
Different parameters that can modify the extension of the transesterification reaction have been evaluated, such as, reaction temperature, agitation speed, methanol:oil molar ratio, percentage of solid catalyst presents in the reaction medium and ...
Labarta, Juan A., Guilló, Natalia, Valdés Barceló, Francisco Javier, Hernández Férez, María del Remedio   +3 more
core  

Supercritical Methanol Transesterification for Simultaneous Biodiesel Production Based on Cir-ULIF-MABAC-TOPSIS Model with Hamacher Norms

Energy Nexus
Supercritical methanol transesterification is a well-established and efficient process that produces biodiesel by reacting methanol with triglycerides under extreme temperature and pressure conditions.
Hamza Zafar, Zeeshan Ali, Bo Hsiao, Sarbast Moslem, Tapan Senapati   +4 more
doaj   +1 more source

Biosynthesis of Sciadonic Acid Derived from Gymnosperms with Anti‐Colitis Activity

Advanced Science, EarlyView.
This study establishes an efficient Yarrowia lipolytica platform for unusual sciadonic acid (SCA) production and assess the anti‐colitis efficacy in mice of SCA, supporting its potential as a novel therapeutic lipid. ABSTRACT Sciadonic acid (SCA), Δ5‐unsaturated fatty acid with anti‐inflammatory and lipid‐regulatory properties, is predominantly derived
Yadi Gao, Wei Liu, Xiuping Liang, Jie Bai, Hong Chang, Wenchao Chen, Mohamed A. Farag, Jianbo Xiao, Huifeng Jiang, Jiasheng Wu, Lili Song   +10 more
wiley   +1 more source

Comparison of three methods for rendering plant fat transesterification

Research in Agricultural Engineering, 2013
Three most frequently used methods for fat transesterification were compared using rendering plant fat (RPF) as model. Acid-catalysed transesterification was found to be the most effective (conversion 90%) at optimum conditions (fat: methanol ratio 1:10,
A. Prošková, J. Kučera, Z. Kopicová, L. Škarková   +3 more
doaj   +1 more source

Enzymatic transesterification of Jatropha oil [PDF]

Biotechnology for Biofuels, 2009
Abstract Background Transesterification of Jatropha oil was carried out in t-butanol solvent using immobilized lipase from Enterobacter aerogenes. The presence of t-butanol significantly reduced the negative effects caused by both methanol and glycerol. The effects of various reaction parameters on transesterification
Garlapati Vijay, Mahapatra Paramita, Kumari Annapurna, Banerjee Rintu   +3 more
openaire   +3 more sources

Influence of n-Hexane on in Situ Transesterification of Marine Macroalgae

Energies, 2012
The purpose of this work is to investigate the influence of n-hexane addition on in situ transesterification of a solid raw material for biodiesel production.
Angel Sánchez, Rocio Maceiras, Angeles Cancela, Mónica Rodríguez   +3 more
doaj   +1 more source