Results 111 to 120 of about 37,808 (300)

Quantitative studies of hepatocytes in periportal and perivenous zones of the liver lobules in diabetic rats [PDF]

, 2007
This study was designed to evaluate the morphometric changes of parenchymal cells in the periportal (Z1) and perivenous (Z3) zones of the liver lobules that occur after Streptozotocin-induced diabetes in rats.
Ghafari, S., Golalipour, M.J.
core  

Advanced Separation Technologies for Light Olefin and Alkane (C2‐C4): Recent Advances in Extraction, Adsorption, and Membrane Separation

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT With the rapid development of the petrochemical industry, efficient separation technology for olefins and alkanes with the same number of carbon atoms has become an important research topic to enhance the efficiency of petroleum resource utilization and optimize product quality.
Shasha Zhao, Kang Zhao, Zhen Liu
wiley   +1 more source

Proxy Means Tests for Targeting the Poorest Households -- Applications to Uganda [PDF]

The motivation for this research stems from increasing interest showed for the issue of targeting. The paper explores the use of proxy means tests to identify the poorest households in Uganda.
Alcaraz V., Gabriela, Houssou, Nazaire, Johannsen, Julia, Schwarze, Stefan, Zeller, Manfred   +4 more
core   +1 more source

Post‐Shaping Over‐Impregnation: A Facile Strategy for Pt‐KL Catalysts With Ultrahigh Metal Dispersion and Enhanced Aromatization Performance

Carbon and Hydrogen, EarlyView.
A scalable post‐shaping strategy achieves precise Pt localization within KL zeolite, where optimized spatial distribution minimizes diffusion barriers to deliver superior n‐hexane aromatization activity, selectivity, and stability. ABSTRACT The precise localization of metal clusters within zeolite frameworks is critical for the aromatization catalysis.
Jianjian Yang, Qijia Chen, Ziyi Qiu, Qiang Liu, Yongping Liu, Wenlin Li   +5 more
wiley   +1 more source

Tuning the Geometric and Electronic Structures in PtMn/SiO2 Catalysts via Oxygen Plasma Treatment for Enhanced Propane Dehydrogenation

Carbon and Hydrogen, EarlyView.
Oxygen plasma treatment promotes Pt dispersion, reducing the average Pt particle size of PtMn catalyst from 2.7 to 1.2 nm, and increases the electron cloud density of Pt. The optimized catalyst exhibits excellent mass‐normalized activity (171 molC3H8·gPt−1·h−1) and an ultralow deactivation rate constant, outperforming most reported Pt‐based catalysts ...
Wulin Yan, Ming Li, Hao Wang, Limin Zhang, Yaowen Gu, Guanghui Zhang, Xinwen Guo   +6 more
wiley   +1 more source

Insights Into the Effect of Humic Acids Extraction From Coal on Hard Carbon Microstructure and Sodium Storage Properties

Carbon Energy, EarlyView.
This study employs a simple solid‐phase alkali‐oxygen oxidation (SAO) method to extract inherent components (humic acids) from coal. We successfully extracted yellow, brown, and black humic acids by adjusting the amount of alkali. Among them, brown humic acid extraction created abundant ultra‐micropores and closed pores, greatly enhancing sodium ...
Ruizhen Song, Yakun Tang, Xiaojun Lv, Jingjing Diao, Yue Zhang, Wenhai Zhang, Lang Liu, Limin Deng, Yuliang Cao   +8 more
wiley   +1 more source

Numerical Simulation of Paraffin Energetic Performance Enhanced by KNO₃, NH₄NO₃, Al, Ti, and Stearic Acid for Hybrid Rocket Applications

Fuels
This study investigates the energy performance of paraffin-based hybrid fuels enhanced with potassium nitrate (KNO3), ammonium nitrate (NH4NO3), aluminum (Al), titanium (Ti), and stearic acid additives.
Grigore Cican, Alexandru Mitrache
doaj   +1 more source

Numerical simulation of long and slender cylinders vibrating in axial flow applied to the Myrrha reactor [PDF]

, 2012
Flow induced vibrations are an important concern in the design of nuclear reactors. One of the possible designs of the 4th generation nuclear reactors is a lead-cooled fast reactor of which MYYRHA is a prototype.
De Ridder, Jeroen, Degroote, Joris, Van Tichelen, Katrien, Vierendeels, Jan   +3 more
core   +1 more source

Alkene Hydrogenation by a Cationic, Nine‐Coordinate Molybdenum(VI) Pentahydride Catalyst

Chemistry – A European Journal, EarlyView.
While late 3d metals dominate efforts to replace precious metals in homogeneous hydrogenation, molybdenum has remained largely ignored. This work reveals that a nine‐coordinate pentahydrido molybdenum complex can hydrogenate a broad range of alkenes efficiently, demonstrating that early‐metal polyhydrides can serve as genuine catalysts rather than mere
Arno Estival, Michel Sigrist, Nicolas Queyriaux, Jorge J. Cabrera‐Trujillo, Nina Durvin, Marie‐Christine Boegli, Laure Vendier, Mary Grellier, Karinne Miqueu, Antoine Simonneau   +9 more
wiley   +1 more source

State‐of‐the‐Art and Synthetic Challenges for Hydrosilane Production

Chemistry – A European Journal, EarlyView.
The synthesis of hydrosilanes is currently energy intensive and their recycling is not considered. However, these compounds are important in many industrial fields but also for the valorization of oxygenated waste, towards a circular economy. This review compares the available synthetic routes and highlights the remaining challenges for the production ...
Gabriel Durin, Albane Fontaine, Jean‐Claude Berthet, Thibault Cantat   +3 more
wiley   +1 more source