Results 61 to 70 of about 6,133,601 (331)

May–Thurner syndrome: Correlation between digital subtraction and computed tomography venography

Journal of the Formosan Medical Association, 2015
Digital subtraction venography (DSV) and computed tomography venography (CTV) are both recommended for diagnosing May–Thurner syndrome. The literature contains little information on the correlation between these imaging tools.
Ying-Sheng Kuo, Chi-Jen Chen, Jiann-Jy Chen, Cheng-Hong Lin, Jan-Wen Ku, Hui-Ling Hsu, Ying-Chi Tseng   +6 more
doaj   +1 more source

A "MINLP" Formulation for Optimal Design of a Catalytic Distillation Column Based on a Generic Non Equilibrium Model [PDF]

, 2005
This contribution proposes a Mixed Integer Non Linear Programming (MINLP) formulation for optimal design of a catalytic distillation column based on a generic nonequilibrium model (NEQ).
Mario-Gomez, Jorge, Meyer, Michel, Meyer, Xuân-Mi, Reneaume, Jean-Michel, Roques, Michel   +4 more
core   +1 more source

Analysis of the Reflux Ratio on the Batch Distillation of Bioethanol Obtained from Lignocellulosic Residue

, 2012
Aiming for sustainable and low-cost production, bioethanol production using lignocellulosic wastes, such as sugarcane bagasse and waste from banana crops, has been extensively explored.
T. C. Coelho, O. Souza, Noeli Sellin, S. W. Medeiros, C. Marangoni   +4 more
semanticscholar   +1 more source

NanoMOF‐Based Multilevel Anti‐Counterfeiting by a Combination of Visible and Invisible Photoluminescence and Conductivity

Advanced Functional Materials, EarlyView.
This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner, Ruben Maile, Murat Cuvalli, Andreas Wolf, Ayisha Komal, Robert Oestreich, Christoph Janiak, Karl Mandel, Alexander Knebel, Klaus Müller‐Buschbaum   +9 more
wiley   +1 more source

Solvent-controlled selective transformation of 2-Bromomethyl-2-methylaziridines to functionalized Aziridines and Azetidines [PDF]

, 2012
The reactivity of 2-bromomethyl-2-methylaziridines toward oxygen, sulfur, and carbon nucleophiles in different solvent systems was investigated. Remarkably, the choice of the solvent has a profound influence on the reaction outcome, enabling the ...
Catak, Saron, D'hooghe, Matthias, De Kimpe, Norbert, Goossens, Hannelore, Stanković, Sonja, Tezcan, Meniz, Van Speybroeck, Veronique, Waroquier, Michel   +7 more
core   +1 more source

MnI‐Functionalized Covalent Organic Framework as Efficient Electrocatalyst for CO2 Reduction in a Catholyte‐Free Zero‐Gap Electrolyzer

Advanced Functional Materials, EarlyView.
This work demonstrates the successful integration of a phenanthroline‐based 2D COF with MnI catalytic sites into a catholyte‐free membrane‐electrode‐assembly cell for CO2 electroreduction. The crystalline COF actively suppresses Mn⁰–Mn⁰ dimerization, achieving a turnover frequency of 617 h⁻¹ at 2.8 V (full‐cell potential), and enabling stable operation.
Laura Spies, Marcos Eduardo G. Carmo, Gonçalves J. Marrenjo, Stephan Reuther, Patrick Ganswindt, Antonio Otavio T. Patrocinio, Thomas Bein, Osmando F. Lopes, Jenny Schneider   +8 more
wiley   +1 more source

Alkali release from aggregates in long-service concrete structures. Laboratory test evaluation and ASR prediction [PDF]

, 2018
Il lavoro propone un semplice modello per la previsione dello sviluppo di espansione deleteria da reazione alcali-silice (ASR) in strutture di calcestruzzo progettate per lunga vita di servizio.
Mangialardi, Teresa, Mario, Berra, Paolini, Antonio Evangelista   +2 more
core   +1 more source

Biodegradable and Recyclable Luminescent Mixed‐Matrix‐Membranes, Hydrogels, and Cryogels based on Nanoscale Metal‐Organic Frameworks and Biopolymers

Advanced Functional Materials, EarlyView.
The study presents biodegradable and recyclable mixed‐matrix membranes (MMMs), hydrogels, and cryogels using luminescent nanoscale metal‐organic frameworks (nMOFs) and biopolymers. These bio‐nMOF‐MMMs combine europium‐based nMOFs as probes for the status of the materials with the biopolymers agar and gelatine and present alternatives to conventional ...
Moritz Maxeiner, Julian Burkhart, Kateryna Borysova, Chiara Mazzariol, Klaus Müller‐Buschbaum   +4 more
wiley   +1 more source

Conditions at which preliminary condensation of vapour before its inlet into a rectifying column is economically expedient

Тонкие химические технологии, 2011
Analysis of heat cost for rectification was performed taking into account the phase state of the original mixture. The conditions, under which pre-condensation of vapour before its inlet into the column is economically expedient, were found.
M. K. Zakharov, Y. A. Starostina, D. G. Nazarov   +2 more
doaj  

Modelling and simulation of multicomponent acetone-butanol-ethanol distillation process in a sieve tray column

Heliyon, 2021
Renewable energy sources are prospective solutions for addressing future energy needs arising from the ever-increasing population and dwindling petroleum reserves.
Lily Pudjiastuti, Tri Widjaja, Kornelius Kevin Iskandar, Fikran Sahid, Siti Nurkhamidah, Ali Altway, Atha Pahlevi Putra   +6 more
doaj   +1 more source