841 research outputs found
Critical Evaluation and Calorimetric Study of the Thermodynamic Properties of Na2CrO4, K2CrO4, Na2MoO4, K2MoO4, Na2WO4, and K2WO4
No full textFunding Information: Ms. Sara Benalia would like to thank the Canada Research Chair in Computational Thermodynamics for High Temperature Sustainable Processes held by Professor Patrice Chartrand and the Johan Gadolin Process Chemistry Centre for the 5 month-mobility grant awarded for her stay at Åbo Akademi University (Turku, Finland). The authors would like to thank Mr. Peter Backman and Ms. Jaana Paananen for operating the DSC apparatus, Ms. Evguenia Sokolenko for helping locate old articles and for translating them into English, Dr. Paul Lafaye for fruitful discussions, and Mr. Maxime Aubé for his helpful comments on the manuscript. Publisher Copyright: © 2023 Author(s).This paper evaluates crystallographic data and thermodynamic properties for sodium chromate, potassium chromate, sodium molybdate, potassium molybdate (K2MoO4), sodium tungstate, and potassium tungstate collected from the literature. A thorough literature review was carried out to obtain a good understanding of the available data, and a critical evaluation has been performed from room temperature to above the melting temperatures. Also, the solid-solid transition and melting properties of the six pure salts were measured by differential scanning calorimetry, and high-temperature x-ray powder diffraction measurements were performed to determine the crystal structures and space groups associated with the phases of K2MoO4. This work is the first step towards the development of a thermodynamic model for the Na+, K+//Cl−, SO42−, CO32−, CrO42−, Cr2O72−, MoO42−, Mo2O72−, WO42−, W2O72−, O2− system that is relevant for high temperature corrosion in atmospheres containing O-H-S-C-Cl and alkali salts.Peer reviewe
Erratum to“Thermodynamic Evaluation and Optimization of Al–La, Al–Ce, Al–Pr, Al–Nd and Al–Sm Systems Using a Modified Quasichemical Model for the Liquid”
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Closing Keynote Address by Dr. Patrice Buckner Jackson (Dr. PBJ)
No full textDr. Patrice Buckner Jackson (Dr. PBJ), author of Disrupting Burnout, will challenge conventional views on work-life balance and reveal practical approaches to overcoming burnout. Drawing on her extensive experience in education and leadership, Dr. PBJ will share insights on reclaiming purpose, cultivating resilience, and building sustainable habits that empower professionals to thrive. Through inspiring stories and actionable strategies, she will guide attendees in rethinking their approach to wellness, encouraging them to disrupt burnout and create meaningful change in both their personal and professional lives
Sémantique et TALN : première approche
No full text@incollection{OL-ENJALBERT-2005, author = {Patrice Enjalbert}, title = {{S{é}mantique et TALN : premi{è}re approche}}, chapter = {1}, pages = {27-52}, booktitle = {S{é}mantique et traitement automatique des langues}, editor = {Patrice Enjalbert}, series = {Trait{é} IC2, s{é}rie Cognition et traitement de l'information}, publisher = {Herm{è}s Sciences, Lavoisier}, year = {2005}
L'extraction d'information
No full text@incollection{OL-ENJALBERT-2005-3, author = {Patrice Enjalbert}, title = {{L'extraction d'information}}, chapter = {8}, pages = {309-334}, booktitle = {S{é}mantique et traitement automatique des langues}, editor = {Patrice Enjalbert}, series = {Trait{é} IC2, s{é}rie Cognition et traitement de l'information}, publisher = {Herm{è}s Sciences, Lavoisier}, year = {2005}
Recherche d'information géographique
No full text@incollection{OL-BILHAUT-2005, author = {Fr{é}d{é}rik Bilhaut and Patrice Enjalbert}, title = {{Recherche d'information g{é}ographique}}, chapter = {10}, pages = {371-406}, booktitle = {S{é}mantique et traitement automatique des langues}, editor = {Patrice Enjalbert}, series = {Trait{é} IC2, s{é}rie Cognition et traitement de l'information}, publisher = {Herm{è}s Sciences, Lavoisier}, year = {2005}
L'accès assisté à l'information documentaire
No full text@incollection{OL-ENJALBERT-2005-4, author = {Patrice Enjalbert and Fr{é}d{é}rik Bilhaut}, title = {{L'acc{è}s assist{é} {à} l'information documentaire}}, chapter = {9}, pages = {335-370}, booktitle = {S{é}mantique et traitement automatique des langues}, editor = {Patrice Enjalbert}, series = {Trait{é} IC2, s{é}rie Cognition et traitement de l'information}, publisher = {Herm{è}s Sciences, Lavoisier}, year = {2005}
Thermodynamic Model for High-Temperature Corrosion Applications: The (NaCl + Na2CO3 + Na2SO4 + Na2S2O7 + Na2CrO4 + Na2Cr2O7 + Na2MoO4 + Na2Mo2O7 + Na2O + KCl + K2CO3 + K2SO4 + K2S2O7 + K2CrO4 + K2Cr2O7 + K2MoO4 + K2Mo2O7 + K2O) System
No full textFunding Information: Ms. Sara Benalia thanks the Canada Research Chair in Computational Thermodynamics for High Temperature Sustainable Processes held by Prof. Patrice Chartrand, and the Johan Gadolin Process Chemistry Centre for the 5 month mobility grant awarded for her stay at Åbo Akademi University (Turku, Finland). The authors also thank Mr. Peter Backman and Ms. Jaana Paananen for operating the DSC apparatus and Ms. Evguenia Sokolenko for helping locate old articles and for translating them into English. Publisher Copyright: © 2023 The Authors. Published by American Chemical Society.A thermodynamic model has been developed for the condensed phases of the salt system (NaCl + Na2CO3 + Na2SO4 + Na2S2O7 + Na2CrO4 + Na2Cr2O7 + Na2MoO4 + Na2Mo2O7 + Na2O + KCl + K2CO3 + K2SO4 + K2S2O7 + K2CrO4 + K2Cr2O7 + K2MoO4 + K2Mo2O7 + K2O) (diluted in free oxides), which is most often involved in combustion processes for energy production. This model is relevant in particular for the solid deposits formed in steel and stainless steel installations containing Ni, Cr, Mo, W, and V as alloying elements and permits the accurate prediction of thermodynamic properties and phase equilibria in the multicomponent system. The (NaCl + Na2CO3 + Na2SO4 + Na2S2O7 + Na2CrO4 + Na2Cr2O7 + Na2O + KCl + K2CO3 + K2SO4 + K2S2O7 + K2CrO4 + K2Cr2O7 + K2O) subsystem was critically evaluated in previous papers. In the present work, Na2MoO4, K2MoO4, Na2Mo2O7, and K2Mo2O7 have been added to the previously developed thermodynamic model. The available phase diagram and thermodynamic data have been critically evaluated, and model parameters have been obtained. The Modified Quasichemical Model in the Quadruplet Approximation was used for both the liquid solution and the high-temperature hexagonal solid solution (Na2CO3 + Na2SO4 + Na2CrO4 + Na2MoO4 + K2CO3 + K2SO4 + K2CrO4 + [K2MoO4]), whereas the Compound Energy Formalism (CEF) was used for all other solid solutions. Due to the lack of data, several common-ion binary subsystems have been investigated in this work at different compositions by differential scanning calorimetry-thermogravimetric analysis (DSC-TGA). In addition, the nonstoichiometric molybdenum-glaserite phase has been studied at the composition (35 mol % Na2MoO4 + 65 mol % K2MoO4) using scanning electron microscopy-energy dispersive X-ray spectrometry (SEM-EDS) and DSC-TGA, after annealing at 400 °C for 4 weeks.Peer reviewe
Actualité d'une approche sémantique du document numérique
No full text@inproceedings{CN-ENJALBERT-2004, address = {La Rochelle, France}, author = {Patrice Enjalbert and Mauro Gaio}, title = {{Actualit{é} d'une approche s{é}mantique du document num{é}rique}}, booktitle = {Actes du 7{è}me Colloque International sur le Document Electronique (CIDE.7)}, editor = {Patrice Enjalbert and Mauro Gaio}, month = {juin}, pages = {13-28}, publisher = {Europe IA}, year = {2004} }National audienc
Multimodal Analgesia for Spine Surgery: Does the Intraoperative Opioid Dose Matter?
No full textAuthor Contributions: Patrice Forget: This author wrote the first draft of the manuscript, contributed to the writing of the manuscript, approved the final version of this article and has read, and confirmed meeting the ICMJE criteria for authorship. Juan P. Cata: This author contributed to the writing of the manuscript, approved the final version of this article and has read, and confirmed meeting the ICMJE criteria for authorship. Funding: The authors received no specific funding for this work.Peer reviewe
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