Search results for "Affect"
showing 10 items of 1382 documents
Gas protection optimization during Nd:YAG laser welding
2004
International audience; Many laser processes, such as welding or surface treatments are associated with an undesired phenomenon, which is oxidation. The solution commonly employed to solve this problem approaches the shielding gas and/or the shielding gas device. What we propose in this paper is a methodology with the goal to optimize the protection gas device design as well as the gas flow in the case of laser welding and surface treatments. The pressure created by the gas flow on the sample surface is recorded and analysed together with the operating parameters influence in order to reach the objectives. The nozzle system designed and presented below assures the protection against materia…
Friction Stir Knead Welding of steel aluminium butt joints
2008
To develop steel aluminium-tailored hybrids in a butt joint for sheets in a thickness of about 1 mm conventional Friction Stir Welding is not feasible due to a high distortion of the welded specimen. Contrary to Friction Stir Welding the tool used for Friction Stir Knead Welding has no pin wherefore higher welding speeds can be realised. Due to the fact that this is a newer process, applied for patent in 2005, the cut contours of the edges and their variations have to be optimised by numerical analysis to transfer a maximum of load in order to improve the formability. The examined materials in this paper are steel DC04, as well as the aluminium alloys AA5182 and AA6016 in sheet thicknesses …
On the linear friction welding process of aluminum alloys: Experimental insights through process monitoring
2013
Abstract Linear friction welding is a solid-state joining process for non-axisymmetric components in which joining of materials is obtained through the relative motion of two components under pressure. In the process the heat source is given by the frictional forces work decaying into heat determining a local softening of the material and eventually bonding conditions. A dedicated fixture was equipped with sensors for the in-process acquisition of variables regarding kinematics, dynamics and temperature levels. The results of an experimental campaign aimed to weld AA6082-T6 aluminum alloy parts are presented and a process window is identified for the used alloy.
dentity Narrative in informal family and non-family caregivers of people on dialysis
2019
Objetivo. Explorar la identidad narrativa de las cuidadoras informales familiares o no, de personas en diálisis. Método. Entrevistas en profundidad a 9 cuidadoras de personas de programas de Hemodiálisis o Diálisis Peritoneal del Hospital General Universitario. Se obtuvo autorización del Comité de Ética y los consentimientos informados de los participantes. El análisis se hizo desde la Teoría Fundamentada. Las narraciones transcritas y codificadas fueron sometidas a reflexión hermenéutica. Resultados. La enfermedad genera un impacto y las cuidadoras asumen el cuidado como pueden. Surge el sentimiento de “cuidado como destino” y como dotación intrínseca de “ser mujer”, percibido como una esp…
Biomarkers and Long-Term Labour Market Outcomes: The Case of Creatine
2014
I evaluate the impact of the UK Working Time Regulations 1998, which introduced mandatory paid holiday entitlement. The regulation gave (nearly) all workers the right to a minimum of 4 weeks of paid holiday per a year. With constant weekly pay this change amounts effectively to an increase in the real hourly wage of about 8.5% for someone going from 0 to 4 weeks paid holiday per year, which should lead to adjustments in employment. For employees I use complementary log-log regression to account for right-censoring of employment spells. I find no increase in the hazard to exit employment within a year after treatment. Adjustments in wages cannot explain this result as they are increasing for…
Study Crafting and Self-Undermining in Higher Education Students: A Weekly Diary Study on the Antecedents.
2021
The aim of the current study is to validate the adaptation of the job demands–resources theory to the study context. In addition, we introduce the concepts study crafting and self-undermining to the study demands–resources framework by examining the mediating role of engagement and exhaustion in the relationship between study characteristics and study crafting and self-undermining. Over four consecutive weeks, 205 higher education students answered a questionnaire about their weekly study demands and resources, their well-being (i.e., engagement, exhaustion), and their study crafting and self-undermining behaviors. Multilevel structural equation modeling (controlling for autoregressors of m…
A cross‐cultural and multi‐behavioral analysis of the relationship between nonverbal immediacy and teacher evaluation
1995
Nonverbal immediacy of teachers has been demonstrated to be substantially associated with increased cognitive and affective learning in students. The assumption underlying the current research is that teacher communication behaviors that enhance student learning will also enhance positive evaluations of teachers by those students. This study sought to determine what specific teacher nonverbal immediacy behaviors are most associated with students' evaluations of their teachers. Our research was based on data drawn from the cultures of Australia, Finland, and Puerto Rico as well as the dominant United States culture. Each study was conducted in the primary language of the sample studied. The …
Is (Was) Mathematics an Art or a Science?
2018
If you teach in a department like mine, the answer to this timeless question may actually carry consequences that seriously affect the resources your program will have available to teach mathematics in the future. In Mainz, no one is likely to protest that mathematics has long been counted as part of the Naturwissenschaften (natural sciences). If it were part of the Geisteswissenschaften (humanities), this would probably have serious budgetary implications. Of course most mathematics departments are now facing a far more immediate and pressing issue, one that can perhaps be boiled down to a different question: is mathematics closer to (a) an art form or (b) a form of computer science? If yo…
The gap between knowledge and belief: narrative, affect and students’ deeper learning in higher education
2021
One of the central challenges educators face today, especially in higher education, is the gap between warranted (domain-specific) knowledge and the prior beliefs students hold about certain concep...
Positive Learning and Pluriliteracies
2017
Deeper learning and the development of transferable knowledge and skills are highly desirable goals in Higher Education programs. However, current studies indicate that these goals are rarely achieved. In this article, we will present a model of deeper learning that promotes the development of disciplinary literacies and transferable knowledge. Based on our joint work we will outline a revised course design that aims at putting the principles of deeper learning into practice through a focus on affect, student engagement, knowledge construction, meaning making and active demonstration of understanding as well as reflective practice. Further, we will outline a research agenda for evaluating a…