A. Taheri, Ntnu Trondheim Norway Petroleum, O. Torsæter, E. Lindeberg, N. Hadia, D. Wessel-Berg
Convective mixing of free-phase CO2 and brine in saline aquifers is an established technique to accelerate the CO2 dissolution process. Correct estimation of the convection onset time and rate of CO2 dissolution into brine are two crucial parameters regarding safety issues, as the timescale for dissolution corresponds to the same time over which the free-phase CO2 has a chance to leak out from the storage site. In real practice, underground formations are heterogeneous with a layered structure, but the convective mixing in heterogeneous porous media has received less attention than the homogeneous one. This study aims to develop a basic understanding of the role of layered permeability media (layered structure with variation in permeability vertically) on the behavior of convective mixing via well-controlled laboratory experiments. The effects of layering and layer properties on the rate of dissolution of CO2 in water and geometries of the formed convection fingers are studied using a precise experimental set-up with layered-permeability Hele-Shaw cell geometry. Qualitative (snapshots of convection fingers) and quantitative data (amount of the dissolved CO2 into water) are collected simultaneously for a better understanding of the process. The behavior of convection fingers (after the onset of convection) and the effects of model properties on this mixing process are also discussed.
{"title":"Effect of Convective Mixing Process on Storage of CO2 in Saline Aquifers with Layered Permeability","authors":"A. Taheri, Ntnu Trondheim Norway Petroleum, O. Torsæter, E. Lindeberg, N. Hadia, D. Wessel-Berg","doi":"10.21926/ACR.2101012","DOIUrl":"https://doi.org/10.21926/ACR.2101012","url":null,"abstract":"Convective mixing of free-phase CO2 and brine in saline aquifers is an established technique to accelerate the CO2 dissolution process. Correct estimation of the convection onset time and rate of CO2 dissolution into brine are two crucial parameters regarding safety issues, as the timescale for dissolution corresponds to the same time over which the free-phase CO2 has a chance to leak out from the storage site. In real practice, underground formations are heterogeneous with a layered structure, but the convective mixing in heterogeneous porous media has received less attention than the homogeneous one. This study aims to develop a basic understanding of the role of layered permeability media (layered structure with variation in permeability vertically) on the behavior of convective mixing via well-controlled laboratory experiments. The effects of layering and layer properties on the rate of dissolution of CO2 in water and geometries of the formed convection fingers are studied using a precise experimental set-up with layered-permeability Hele-Shaw cell geometry. Qualitative (snapshots of convection fingers) and quantitative data (amount of the dissolved CO2 into water) are collected simultaneously for a better understanding of the process. The behavior of convection fingers (after the onset of convection) and the effects of model properties on this mixing process are also discussed.","PeriodicalId":7334,"journal":{"name":"Advances in Computing Research","volume":"107 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84978251","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
I. Jourdain, M. Knorr, Lukas Brieger, C. Strohmann
The dinuclear complexes [Co2(CO)6{P(OAr)3}2] (1a, Ar = Ph; 1b, Ar = o-Tol) were prepared and reacted with PhC≡CH and PhC≡CPh to yield dimetallatetrahedranes [{(ArO)3P}(OC)2Co-Co(μ-RC≡CPh)(CO)2{P(OAr)3}] (3a, Ar = Ph, R = H; 3b, Ar = o-Tol, R = H; 3c, Ar = Ph, R = Ph; 3d, Ar = o-Tol, R = Ph). The main reaction of diphenylacetylene was accompanied by a side reaction, leading to the dissociation of a P(OAr)3 ligand for the formation of mono(phosphite) complexes [{(ArO)3P}(OC)2Co-Co(μ-PhC≡CPh)(CO)3] (2b, R = Ph; 2d, R = o-Tol). The crystal structures of 1b, 3a, and 3d were determined along with that of the mono(phosphite) complex [{(PhO)3P}(OC)2Co-Co(μ-PhC≡CPh)(CO)3] 2b.
双核配合物[Co2(CO)6{P(OAr)3}2] (1a, Ar = Ph;(1b, Ar = o-Tol)与PhC≡CH和PhC≡CPh反应得到双金属四面甾体[{(ArO)3P}(OC)2Co-Co(μ-RC≡CPh)(CO)2{P(OAr)3}] (3a, Ar = Ph, R = H;3b, Ar = o-Tol, R = H;3c, Ar = Ph, R = Ph;3d, Ar = o-Tol, R = Ph)。二苯乙炔的主反应伴有副反应，导致P(OAr)3配体解离形成单(亚磷酸酯)配合物[{(ArO)3P}(OC)2Co-Co(μ-PhC≡CPh)(CO)3] (2b, R = Ph;2d, R = o-Tol)。测定了1b、3a和3d的晶体结构以及单(亚磷酸盐)配合物[{(PhO)3P}(OC)2Co-Co(μ-PhC≡CPh)(CO)3] 2b的晶体结构。
{"title":"Synthesis of Tris(arylphosphite)-ligated Cobalt(0) Complexes [Co2(CO)6{P(OAr)3}2], and their Reactivity towards Phenylacetylene and Diphenylacetylene","authors":"I. Jourdain, M. Knorr, Lukas Brieger, C. Strohmann","doi":"10.21926/acr.2004009","DOIUrl":"https://doi.org/10.21926/acr.2004009","url":null,"abstract":"The dinuclear complexes [Co2(CO)6{P(OAr)3}2] (1a, Ar = Ph; 1b, Ar = o-Tol) were prepared and reacted with PhC≡CH and PhC≡CPh to yield dimetallatetrahedranes [{(ArO)3P}(OC)2Co-Co(μ-RC≡CPh)(CO)2{P(OAr)3}] (3a, Ar = Ph, R = H; 3b, Ar = o-Tol, R = H; 3c, Ar = Ph, R = Ph; 3d, Ar = o-Tol, R = Ph). The main reaction of diphenylacetylene was accompanied by a side reaction, leading to the dissociation of a P(OAr)3 ligand for the formation of mono(phosphite) complexes [{(ArO)3P}(OC)2Co-Co(μ-PhC≡CPh)(CO)3] (2b, R = Ph; 2d, R = o-Tol). The crystal structures of 1b, 3a, and 3d were determined along with that of the mono(phosphite) complex [{(PhO)3P}(OC)2Co-Co(μ-PhC≡CPh)(CO)3] 2b.","PeriodicalId":7334,"journal":{"name":"Advances in Computing Research","volume":"11 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81588927","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-09-11DOI: 10.47496/nl.acr.2020.01.02
G. Kanabar, D. Kidd
Background: Autonomic neuropathies causing gastrointestinal complications are uncommon. Case Presentation: We report a case in which autoimmune autonomic enteric neuropathy was associated with myasthenia gravis and thymoma. Conclusion: Autoimmune autonomic enteric neuropathies are exceedingly rare, with only 10 cases reported in the literature to date. All have been associated with thymoma. We describe the prevalence of associated antibodies, summarise the previous cases and treatment received.
{"title":"Autoimmune Ganglionic Enteropathy Associated with Myasthenia Gravis and Thymoma","authors":"G. Kanabar, D. Kidd","doi":"10.47496/nl.acr.2020.01.02","DOIUrl":"https://doi.org/10.47496/nl.acr.2020.01.02","url":null,"abstract":"Background: Autonomic neuropathies causing gastrointestinal complications are uncommon. Case \u0000Presentation: We report a case in which autoimmune autonomic enteric neuropathy was associated with \u0000myasthenia gravis and thymoma. Conclusion: Autoimmune autonomic enteric neuropathies are \u0000exceedingly rare, with only 10 cases reported in the literature to date. All have been associated with \u0000thymoma. We describe the prevalence of associated antibodies, summarise the previous cases and treatment \u0000received.","PeriodicalId":7334,"journal":{"name":"Advances in Computing Research","volume":"60 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2020-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73164849","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-09-08DOI: 10.31487/j.acr.2020.01.08
Monica Melo, Júlia Ferreira Nogueira, Lucas Vinicius Andrade dos Santos, Luis Sousa, Raiane Nascimento Santana, Weslly Jonas Severo da Silva, Wictor Hugo de Souza Silva, Makson G. B. Oliveira
Severe acute respiratory syndrome (COVID-19), produced by SARS-CoV-2, remains a challenge for modern medicine and a global health problem. For every 100 patients with COVID-19, about 20 need hospital care. In addition, some patients will be intubated and others under mechanical ventilation. Therefore, it is necessary to use drugs as a sedative and analgesic purpose, mainly. Thus, this study brings a survey on the drugs that can be used for the management of patients with COVID-19 in cases of intubation and mechanical ventilation in Brazil. In this paper, we will report the classes of anaesthetic and analgesic drugs. Highlighting the clinical indications for use, pharmacological characteristics of each drug in terms of doses, pharmacokinetics, pharmacodynamics and possible side effects and, in addition, peculiarities of drugs related to use in patients with COVID-19, when possible.
{"title":"Review of Anaesthesia and Analgesia in Patients with COVID-19 in Brazil","authors":"Monica Melo, Júlia Ferreira Nogueira, Lucas Vinicius Andrade dos Santos, Luis Sousa, Raiane Nascimento Santana, Weslly Jonas Severo da Silva, Wictor Hugo de Souza Silva, Makson G. B. Oliveira","doi":"10.31487/j.acr.2020.01.08","DOIUrl":"https://doi.org/10.31487/j.acr.2020.01.08","url":null,"abstract":"Severe acute respiratory syndrome (COVID-19), produced by SARS-CoV-2, remains a challenge for \u0000modern medicine and a global health problem. For every 100 patients with COVID-19, about 20 need \u0000hospital care. In addition, some patients will be intubated and others under mechanical ventilation. \u0000Therefore, it is necessary to use drugs as a sedative and analgesic purpose, mainly. Thus, this study brings \u0000a survey on the drugs that can be used for the management of patients with COVID-19 in cases of intubation \u0000and mechanical ventilation in Brazil. In this paper, we will report the classes of anaesthetic and analgesic \u0000drugs. Highlighting the clinical indications for use, pharmacological characteristics of each drug in terms of \u0000doses, pharmacokinetics, pharmacodynamics and possible side effects and, in addition, peculiarities of drugs \u0000related to use in patients with COVID-19, when possible.","PeriodicalId":7334,"journal":{"name":"Advances in Computing Research","volume":"21 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2020-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86036216","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yashiro Rojas, Evana Halaka, M. Hanna, A. Sidoti, Jehan Joma, Mina Mikhael, R. Lalancette, I. Bernal
{"title":"The Unexpected Synthesis of a New (μ2-hydroxo-μ2-peroxo) Dicobalt Complex","authors":"Yashiro Rojas, Evana Halaka, M. Hanna, A. Sidoti, Jehan Joma, Mina Mikhael, R. Lalancette, I. Bernal","doi":"10.21926/acr.2003008","DOIUrl":"https://doi.org/10.21926/acr.2003008","url":null,"abstract":"","PeriodicalId":7334,"journal":{"name":"Advances in Computing Research","volume":"160 1","pages":"1-8"},"PeriodicalIF":0.0,"publicationDate":"2020-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74889059","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
M. Łożyński, I. Mądrzak-Litwa, A. Borowiak-Resterna
{"title":"1-Decylbenzimidazole Copper(II) Complexes: Combined Experimental and DFT PCM and TD-DFT Computational Studies","authors":"M. Łożyński, I. Mądrzak-Litwa, A. Borowiak-Resterna","doi":"10.21926/acr.2003007","DOIUrl":"https://doi.org/10.21926/acr.2003007","url":null,"abstract":"","PeriodicalId":7334,"journal":{"name":"Advances in Computing Research","volume":"28 1","pages":"1-25"},"PeriodicalIF":0.0,"publicationDate":"2020-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82065950","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Sandra Mikhael, M. Shawky, Gulraiz Hashmi, I. Bernal, R. Lalancette
{"title":"A Preparation and Structural Characterization of the Hydrated Trifluoride Salt of the [Co(NH3)6]3+ Cation: [Co(NH3)6]F3 · 2H2O. The Unexpected Preparation of [Co(NH3)6](BF4)(SiF6) from Pyrex Glass, and the Syntheses and Structures of (NH4)[Co(NH3)6](BF4)2(2Cl) and of (NH4)[Co(NH3)6]2(SiF6)3(Cl) · 3H","authors":"Sandra Mikhael, M. Shawky, Gulraiz Hashmi, I. Bernal, R. Lalancette","doi":"10.21926/acr.2003006","DOIUrl":"https://doi.org/10.21926/acr.2003006","url":null,"abstract":"","PeriodicalId":7334,"journal":{"name":"Advances in Computing Research","volume":"71 1","pages":"1-11"},"PeriodicalIF":0.0,"publicationDate":"2020-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89202329","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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