Coupled semi-analytical solution for CO2 injection-induced surface uplift and caprock deflection

This study focuses on a specific problem related to the surface uplift induced by the injection of CO2 at depth. The adopted methodology includes the development of a mathematical model that incorporates the deformable behaviour of storage media and the flow of two immiscible fluids (CO2 and water) within the aquifers while the surface rock or caprock layer is modelled as a thin plate. Governing equations are solved for the axisymmetric flexural deflection due to a constant rate of injection of CO2. Comparison of the results with the surface uplift measurements (In Salah project), show good agreement. The results show that this semi-analytical solution is capable of capturing the pressure build-up during the very early stage of injection, resulting in a high rate of surface uplift. Compared to a FEM simulation, the calculation time required using the semi-analytical solution is very short; it can be employed as a preliminary design tool for risk assessment using parameters such as the injection rate, porosity, rock properties and geological structures. This semi-analytical solution provides a convenient way to estimate the influence of high injection rates of CO2 on the surface uplift. The methodology in this development can easily incorporate other pressure distributions; thus advances in hydrology researches can also benefit this approach

Coupled Approach to Assess Caprock Deformation Caused by CO2 Injection

This study focuses on a specific problem related to the caprock deformation induced by the injection of CO2 at depth. The adopted methodology includes the development of a mathematical model that incorporates the deformable behaviour of storage media and the flow of two immiscible fluids (CO2 and water) within the aquifers while the surface rock or caprock layer is modelled as a thin plate. Governing equations are solved for the axisymmetric flexural deflection due to a constant rate of injection of CO2. The results show that this semi-analytical solution is capable of capturing the pressure build-up during the very early stage of injection, resulting in a high rate of surface uplift. The calculation time required using the semianalytical solution is very short; it can be employed as a preliminary design tool for risk assessment using parameters such as the injection rate, porosity, rock properties and geological structures. This semi-analytical solution provides a convenient way to estimate the influence of high injection rates of CO2 on the caprock deformation. The methodology in this development can easily incorporate other pressure distributions; thus advances in hydrology researches can also benefit this approach

A hydromechanical approach to assess CO2 injection-induced surface uplift and caprock deflection

This study focuses on the derivation of a semi-analytical approach for the evaluation of surface uplift and caprock deflection induced by underground injection of CO2. The adopted methodology includes the development of a mathematical model that incorporates the deformable behaviour of the storage reservoir and the flow of two immiscible fluids (CO2 and brine) within the aquifer while the surface rock or the caprock layer is modelled as a thin plate. Governing equations are solved for the axisymmetric flexural deflection due to a constant rate of CO2 injection. Both developed solutions are applied to a representative CO2 storage case solved numerically by the finite element method, and good agreement between results is observed. When benchmarking to the In Salah surface uplift, the developed semi-analytical approach can capture a high rate of surface uplift caused by the pressure build-up during the early stage of CO2 injection. The required calculation time is very short compared to a classical finite element approach. This method can be employed as a design tool for the analysis of uncertainty in parameters such as the injection rate, porosity, rock properties and geological structures. This semi-analytical approach also provides an efficient means of estimating the influence of high injection rates of CO2 on surface uplift

Effect of nascent entrepreneurs' training on their stress: the role of gender and participants' interaction

Purpose – A career in entrepreneurship is stressful, especially during the start-up phase. Training programs for these nascent entrepreneurs are designed to improve entrepreneurial competencies and, more generally to generate learnings. Although learning outcomes can reduce stress, the conditions under which this can happen are not fully understood. The study looks particularly at the effect of learning, interaction with other participants and gender. Design/methodology/approach – A six-month three-wave longitudinal study of 120 nascent entrepreneurs has been conducted to investigate the before-and-after effects of training on stress reduction. The training is specially designed to develop competencies, share knowledge about business creation and support the development of the project, not to reduce per se stress. Findings – The training has no direct effect on stress levels. However, results indicate that interacting with others has a positive moderating effect on training as stress reduction, just as gender has. Specifically, women reduce their stress through training while men see theirs increasing. The authors conclude that breaking isolation through training is a relevant way to reduce entrepreneurial stress for nascent entrepreneurs. Research limitations/implications – Training programs offer different ways to deliver the learning content (online, in cohorts, in the continuous entrance, etc.). The findings of this study suggest ensuring that the participants will have opportunities to interact with others as it reduces the stress on nascent entrepreneurs. Nevertheless, the authors cannot demonstrate that this has a long-term effect as our timeframe is limited to six months. Originality/value – This research investigates the stress-reduction effect of training, which is not a common outcome studied related to training. This highlights the importance of looking at other more distal outcomes as nascent entrepreneurs may seek other peripheral outcomes from training, like seeking a sense of belonging or wanting to break isolation

Effect of nascent entrepreneurs' training on their stress: The role of gender and participants' interaction

Purpose A career in entrepreneurship is stressful, especially during the start-up phase. Training programs for these nascent entrepreneurs are designed to improve entrepreneurial competencies and, more generally to generate learnings. Although learning outcomes can reduce stress, the conditions under which this can happen are not fully understood. The study looks particularly at the effect of learning, interaction with other participants and gender. Design/methodology/approach A six-month three-wave longitudinal study of 120 nascent entrepreneurs has been conducted to investigate the before-and-after effects of training on stress reduction. The training is specially designed to develop competencies, share knowledge about business creation and support the development of the project, not to reduce per se stress. Findings The training has no direct effect on stress levels. However, results indicate that interacting with others has a positive moderating effect on training as stress reduction, just as gender has. Specifically, women reduce their stress through training while men see theirs increasing. The authors conclude that breaking isolation through training is a relevant way to reduce entrepreneurial stress for nascent entrepreneurs. Research limitations/implications Training programs offer different ways to deliver the learning content (online, in cohorts, in the continuous entrance, etc.). The findings of this study suggest ensuring that the participants will have opportunities to interact with others as it reduces the stress on nascent entrepreneurs. Nevertheless, the authors cannot demonstrate that this has a long-term effect as our timeframe is limited to six months. Originality/value This research investigates the stress-reduction effect of training, which is not a common outcome studied related to training. This highlights the importance of looking at other more distal outcomes as nascent entrepreneurs may seek other peripheral outcomes from training, like seeking a sense of belonging or wanting to break isolation

Projet « Contact – Hiver 2023 » : Présentation des résultats préliminaires

À l’hiver 2023, trois professeur.es de l’Université TÉLUQ ont participé au projet-pilote « Contact ). Dans le cadre de ce projet, les professeur.es ont organisé des rencontres de démarrage collectives synchrones en visioconférence, avec les étudiant.es qui leur étaient assigné.es. Certains ont aussi organisé des rencontres sur une base hebdomadaire ou mensuelle. Ces rencontres avaient pour but de créer un premier contact, répondre aux questions des étudiant.es et rendre les interactions plus humaines dans leurs cours. Suite à ces rencontres, les étudiant.es ayant participé ont été sondé.es pour mesurer leur appréciation de ces rencontres. Les étudiant.es n’ayant pas participé à ces rencontres ont aussi été sondé.es afin de connaître les raisons de leur non-participation. Lors de cette présentation, les résultats préliminaires sont présentés

Projet “Contact – Automne 2022” : Rapport d'expérimentation

À l’automne 2022, six professeur.es de l’Université TÉLUQ ont participé au projet-pilote « Contact – Automne 2022). Dans le cadre de ce projet, les professeur.es ont organisé des rencontres de démarrage collectives synchrones en visioconférence, avec les étudiant.es qui leur étaient assigné.es. Ces rencontres avaient pour but de créer un premier contact, répondre aux questions des étudiant.es et rendre les interactions plus humaines dans leurs cours. Globalement, 25 % des étudiant.es invité.es ont participé à ces rencontres. Suite à ces rencontres, les étudiant.es ayant participé ont été sondé.es pour mesurer leur appréciation de ces rencontres. Les étudiant.es n’ayant pas participé à ces rencontres ont aussi été sondé.es afin de connaître les raisons de leur non-participation. Les différentes données colligées lors de ce projet-pilote permettent de constater que ce type de rencontres répond à un besoin d’une partie des étudiant.es. Toutefois, l’identification des différentes modalités d’organisation des rencontres selon les caractéristiques des cours nécessite des expérimentations supplémentaires afin de déterminer si ce genre de rencontres est nécessaire dans les différents cours de l’Université TÉLUQ, pour identifier les facteurs qui permettraient de favoriser une meilleure participation des étudiant.es, etc. Ce projet-pilote a également permis d’identifier une problématique quant à la consultation des courriels institutionnels par les étudiant.es

Projet “Contact ” : Rapport d'expérimentation

Le projet « Contact » s’est amorcé au cours du trimestre d’automne 2022 et s’est poursuivi lors des trimestres d’hiver et d’automne 2023. Lors de ce projet, huit professeur.es provenant de trois des quatre départements de l’Université TÉLUQ ont réalisé des rencontres de démarrage collectives synchrones à l’intérieur de douze différents cours. Le présent rapport contient la présentation détaillée du projet, les différentes données qui ont été colligées, une analyse, une discussion et des recommandations à l’attention de la communauté de l’Université TÉLUQ

Orchestrer une proposition de valeur de lien par le design expérientiel des espaces de vente physiques : le cas Photo Station

Les récentes mutations technologiques et sociales questionnent le rôle du magasin physique. Or, ce dernier constitue un levier stratégique pour encourager une relation extra-marchande entre une enseigne et ses clients. À partir d’une étude longitudinale de cas enchâssés portant sur la reconversion réussie de Photo Station, la présente recherche dévoile le processus de conception d’un design d’espaces de vente orchestrant une proposition de valeur de lien. Au-delà de l’identification des ressources matérielles et immatérielles, l’analyse procure des outils de pilotage et d’évaluation du processus sur l’intégralité du cycle de vie du concept magasin, associés à une série de recommandations managériales

Testing Consumers' Motivation and Linguistic Ability as Moderators of Advertising Readibility

The present study focuses on testing rival hypotheses regarding the effects of advertising readability: Are the effects of readability on cognitive responses and attitudes moderated by the readers’ motivation or by their linguistic ability? A two (low/high involvement) by two (strong/weak arguments) by two (low/high readability) factorial design was used to test the hypotheses. The findings support the hypothesis that readers’ linguistic ability is the dominant influence factor, because low readability significantly reduces the effects of argument strength under both low and high involvement. Psycholinguistic theory provides explanation for the findings. The implications for advertising practice relate to consumers’ levels of literacy