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| 1 | Lattice Boltzmann Simulation of CO_2 Transport in Kerogen Nanopores——An Evaluation of CO_2 Sequestration in Organic-Rich Shales显示文摘Organic-rich shale resources remain an important source of hydrocarbons considering their substantial contribution to crude oil and natural gas production around the world. Moreover, as part of mitigating the greenhouse gas effects due to the emissions of carbon dioxide(CO_2) gas, organic-rich shales are considered a possible alternate geologic storage. This is due to the adsorptive properties of organic kerogen and clay minerals within the shale matrix. Therefore, this research looks at evaluating the sequestration potential of carbon dioxide(CO_2) gas in kerogen nanopores with the use of the lattice Boltzmann method under varying experimental pressures and different pore sizes. Gas flow in micro/nano pores differ in hydrodynamics due to the dominant pore wall effects, as the mean free path(λ) of the gas molecules become comparable to the characteristic length(H) of the pores. In so doing, the traditional computational methods break down beyond the continuum region, and the lattice Boltzmann method(LBM) is employed. The lattice Boltzmann method is a mesoscopic numerical method for fluid system, where a unit of gas particles is assigned a discrete distribution function(f). The particles stream along defined lattice links and collide locally at the lattice sites to conserve mass and momentum. The effects of gas-wall collisions(Knudsen layer effects) is incorporated into the LBM through an effective-relaxationtime model, and the discontinuous velocity at the pore walls is resolved with a slip boundary condition. Above all, the time lag(slip effect) created by CO_2 gas molecules due to adsorption and desorption over a time period, and the surface diffusion as a result of the adsorption-gradient are captured by an adsorption isotherm and included in our LBM. Implementing the Langmuir adsorption isotherm at the pore walls for both CO_2 gas revealed the underlying flow mechanism for CO_2 gas in a typical kerogen nano-pore is dominated by the slip flow regime. Increasing the equilibrium pressure, increases the mass flux due to adsorption. On the other hand, an increase in the nano-pore size caused further increase in the mass flux due to free gas and that due to adsorbed gas. Thus, in the kerogen nano-pores, CO_2 gas molecules are more adsorptive indicating a possible multi-layer adsorption. Therefore, this study not only provides a clear understanding of the underlying flow mechanism of CO_2 in kerogen nano-pores, but also provides a potential alternative means to mitigate the greenhouse gas effect(GHG) by sequestering CO_2 in organic-rich shales. | Sherifa Cudjoe Reza Barati | 2017 | Journal of Earth Science2017，28，5： | 3 |
| 2 | Solid-phase microextraction in bioanalysis: New devices and directions 显示文摘 | Vuckovic D Zhang X Cudjoe E | 2010 | J Chromatogr A2010，1217，25： | 1 |
| 3 | Solid-phase microextraetion in bioanalysis: New do--ices and di- rections显示文摘 | Vuckovic D Zhang X Cudjoe E | 2010 | Journal of Chromatography A2010，1217，： | 1 |
| 4 | Alzheimer's disease and other dementia in sub-Saharan Africa and the Carib- bean显示文摘 | Rowe JS Okafor C Cudjoe T | 2014 | J Am Geriatr Soc2014，62，10： | 1 |
| 5 | Auto mation of solid-phase microextraction in high-through- put format and applications to drug analysis显示文摘 | VUCKOVIC D CUDJOE E HEIN D | 2008 | Anal Chem2008，，80： | 1 |
| 6 | Solid-phase microextraction in bioanalysis: New devices and directions显示文摘 | Dajana Vuckovic Xu Zhang Erasmus Cudjoe Janusz Pawliszyn | 2009 | Journal of Chromatography A2009，，： | 1 |
| 7 | Solid-phasemicroextraction in bioanalysis : new devices and directions 显示文摘 | Vuckovic D Zhang X Cudjoe E | 2010 | Journal of Chromatography A2010，1217，25： | 1 |
| 8 | Fast and sensitive method to determine chloroanisoles in cork using an internally cooled solid-phase microextraction fiber 显示文摘 | Carasek E Cudjoe E Pawliszyn J | 2007 | Journal of Chromatography A2007，1138，1： | 1 |
| 9 | Fast and sensitive method to determine chloroanisoles in cork using an internally cooled solid-phase microextraction fiber显示文摘 | Carasek E Cudjoe E Pawliszyn J | 2007 | Journal of Chromatography A2007，1138，1： | 1 |
| 10 | Solid-phase mieroex- traction in bioanalysis: New devices and directions显示文摘 | Vuckovic D Zhang X Cudjoe E et a/ | 2010 | Journal of Chromatography A2010，1217，： | 1 |
| 11 | Determination of selected pharmaceutical residues in wastewater using an automated open bed solid phase microextraction system显示文摘 | TOGUNDE O P CUDJOE E OAKES K D | 2012 | J Chromatogr A2012，1262，2： | 1 |
| 12 | Detection of Salmonella from raw food samples using DynabeadsD○R anti-Salmonella and a conventional reference method显示文摘 | Cudjoe K S Krona R | 1997 | Int J of Food Microbiol1997，37，： | 1 |
| 13 | Necrotizing fasciitis of the head and neck:a report of two patients and review显示文摘 | Chattar CD Tulsyan N Cudjoe EA | 2002 | Head-Neck2002，24，5： | 1 |
| 14 | Solid-phase micro- extraction in bioanalysis :new devices and directions 显示文摘 | Vuckovic D Zhang X Cudjoe E | 2010 | J Chromatogr A2010，1217，25： | 1 |
| 15 | Determination of tranex- amic acid concentration by solid phase microextraction and liquid chromatography-tandem mass spectrometry: first step to in vivo analysis 显示文摘 | Bojko B Vuckovic D Cudjoe E | 2011 | J Chromatogr B: Analyt Technol Biomed Life Sci2011，879，32： | 1 |
| 16 | New approach to the application of solid phase extraction disks with LC-MS/MS for the analysis of drugs on a 96-well plate format 显示文摘 | Cudjoe E Pawliszyn J A | 2009 | JPharm BiomedAnal2009，50，4： | 1 |
| 17 | Local impacts of a global crisis: Food price transmission, consumer welfare and poverty in Ghana显示文摘 | Godsway Cudjoe Clemens Breisinger Xinshen Diao | 2010 | Food Policy2010，，4： | 1 |
| 18 | 心力衰竭患者的社会孤立感知及预后显示文摘已有研究表明,患者感知到的社会孤立感对健康预后有负面影响,尤其是在老年人中。然而,这种关系在心力衰竭患者中尚未得到充分研究。Sheila等获取2013年1月1日至2015年3月31日期间,来自明尼苏达州东南部的11个州的心力衰竭[首次国际疾病分类第9次修订版(ICD-9)代码为428]患者(n=3867)资料,应用患者报告的结果测量信息系统(the patient-reported outcomes measurement information system,PROMIS)-社会孤立简表4a v2.0进行前瞻性研究,调查患者对社会孤立感的感知情况及其与不良预后发生的关系。 | 刘青 叶鹏 Manemann SM Chamberlain AM Roger VL Griffin JM Boyd CM Cudjoe TKM Jensen D Weston SA Fabbri M Jiang R Finney Rutten LJ | 2018 | 中华高血压杂志2018，26，7： | 0 |
| 19 | Factors associated with the clinical outcomes of adult cardiac and non-cardiac origin cardiac arrest in emergency departments: a nationwide retrospective cohort study from China显示文摘Cardiac arrest(CA)is one of the most common causes of death.[1-3]Despite extensive studies on the management of CA,the global survival rate in adults is only approximately 7%,and 30-day survival is even less than 2%in China.[4]Some studies have shown that CA patients of cardiac and non-cardiac origin may differ in underlying diseases,clinical manifestations,and prognosis,which leads to diff erences in terms of the pathophysiological mechanism and treatment measure.[5,6]However,little is known about the risk factors in relation to the prognosis of CA across arrest etiologies. | Yue-guo Wang Cudjoe Obed Yu-lan Wang Feng-feng Deng Shu-sheng Zhou Yang-yang Fu Jian Sun Wenwen Wang Jun Xu Kui Jin | 2023 | World Journal of Emergency Medicine2023，14，3： | 0 |
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