scholarly journals Higher-order Dirac fermions in three dimensions

2020 ◽  
Vol 101 (20) ◽  
Author(s):  
Weikang Wu ◽  
Zhi-Ming Yu ◽  
Xiaoting Zhou ◽  
Y. X. Zhao ◽  
Shengyuan A. Yang
Keyword(s):  
Higher Order ◽  
Three Dimensions ◽  
Dirac Fermions

MIXED CONFORMING ELEMENTS FOR THE LARGE-BODY LIMIT IN MICROMAGNETICS

2013 ◽  
Vol 24 (01) ◽  
pp. 113-144 ◽  
Author(s):  
MARKUS AURADA ◽  
JENS M. MELENK ◽  
DIRK PRAETORIUS
Keyword(s):  
Mixed Finite Element ◽  
Large Body ◽  
Mixed Finite Element Method ◽  
Adaptive Strategy ◽  
Posteriori Error ◽  
Higher Order ◽  
Three Dimensions ◽  
Macroscopic Model ◽  
Error Estimator ◽  
Discrete Problem

We introduce a stabilized conforming mixed finite element method for a macroscopic model in micromagnetics. We show well-posedness of the discrete problem for higher order elements in two and three dimensions, develop a full a priori analysis for lowest order elements, and discuss the extension of the method to higher order elements. We introduce a residual-based a posteriori error estimator and present an adaptive strategy. Numerical examples illustrate the performance of the method.

Computing maxwell eigenvalues by using higher order edge elements in three dimensions

2003 ◽  
Vol 39 (5) ◽  
pp. 2149-2153 ◽  
Author(s):  
M. Ainsworth ◽  
J. Coyle ◽  
P.D. Ledger ◽  
K. Morgan
Keyword(s):  
Higher Order ◽  
Three Dimensions ◽  
Edge Elements ◽  
Maxwell Eigenvalues

Propeller Wake Sheet Roll-up Modeling in Three Dimensions

1997 ◽  
Vol 41 (01) ◽  
pp. 81-92
Author(s):  
Sangwoo Pyo ◽  
Spyros A. Kinnas
Keyword(s):  
Three Dimensional ◽  
Vortex Sheet ◽  
Experimental Information ◽  
Higher Order ◽  
Three Dimensions ◽  
Tip Vortex ◽  
Propeller Wake ◽  
Wake Interaction ◽  
Radial Circulation ◽  
Wake Sheet

An algorithm for predicting the complete three-dimensional vortex sheet roll-up is developed. A higher order panel method, which combines a hyperboloidal panel geometry with a bi-quadratic dipole distribution, is used in order to accurately model the highly rolled-up regions. For given radial circulation distributions, the predicted wake shapes are shown to be convergent and consistent with those predicted from other methods. Then, a previously developed flow-adapted grid and the three-dimensional wake sheet roll-up algorithm are combined in order to estimate the propeller loading/trailing wake interaction. The complete wake geometry is determined by the method without the need of any experimental information on the shape of the wake. Predicted forces and tip vortex trajectories are shown to agree well with those measured in experiments.

scholarly journals Analyzing a Pre-Service EFL Program through the Lenses of the CLIL Approach at the University of Cuenca-Ecuador

2018 ◽  
Vol 11 (1) ◽  
pp. 65-86 ◽  
Author(s):  
Juanita Argudo ◽  
Mónica Abad ◽  
Tammy Fajardo-Dack ◽  
Patricio Cabrera
Keyword(s):  
Learning Strategies ◽  
Higher Order Thinking ◽  
Thinking Skills ◽  
Higher Order ◽  
Three Dimensions ◽  
Integrated Learning ◽  
Writing Assignments ◽  
Higher Order Thinking Skills ◽  
Development Of Language ◽  
The University

The recent application of Content and Language Integrated Learning programs in higher education provides an extensive area for research due to the quick implementation of English as the medium of instruction for university programs, as well as to the need of university students around the world to communicate through English and to try different learning strategies and methodologies than the ones they used to work with. This study aimed to estimate the extent to which the English as a Foreign Language (EFL) program at the University of Cuenca designed for students who wish to become EFL teachers complies with the principles of the Content and Language Integrated Learning approach. The 121 participants of this study were students from the fourth, fifth, and seventh semesters of the program. A general proficiency English test was administered to these students; some writing assignments to evaluate the development of Higher Order Thinking Skills were considered; and a survey to inquire about students’ perceptions on the development of language, content, and Higher Order Thinking Skills in their content subject classes was also applied. The findings revealed that 52% of the students are between A1 and A2 level according to the Common European Framework of Reference for Languages; this means that they do not have the necessary linguistic conditions to take content subjects. It seems that the parameters teachers used to plan their classes do not consider the three dimensions of this approach (content, language, and procedures); therefore, students are not developing these dimensions simultaneously.

Does the Factor Structure of the Brief COPE Fit Different Types of Traumatic Events?

2018 ◽  
Vol 34 (3) ◽  
pp. 162-173 ◽  
Author(s):  
Ashley Wei-Ting Wang ◽  
Chung-Ping Cheng ◽  
Cheng-Shyong Chang ◽  
Dar-Ren Chen ◽  
Shou-Tung Chen ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Cancer Patients ◽  
Traumatic Event ◽  
Higher Order ◽  
Three Dimensions ◽  
Breast Cancer Patients ◽  
Confirmatory Factor Analyses ◽  
Factorial Model ◽  
Brief Cope ◽  
Factor Form

Abstract. The current study aims to explore the likelihood of there being a higher-order factorial model of the Brief COPE ( Carver, 1997 ) that is equally appropriate and valid for different traumatic groups (i.e., breast cancer patients and female flood survivors) at 3–4 months after the traumatic event. Both groups of participants include 180 survivors. Five factorial models for the Brief COPE were identified when reviewing the literature, and model comparisons were made by conducting confirmatory factor analyses (CFAs). The three dimensions of the Brief COPE posited by Litman (2006) and Gutiérrez, Peri, Torres, Caseras, and Valdés (2007) , namely self-sufficient coping, socially-supported coping, and avoidant coping, were supported in both traumatic populations. Tests of measurement invariance generally supported invariance (factor form, factor loadings, item intercepts, error variances, factor variances, and covariances) across groups, implying that groups perceive the latent factors in the same way and the higher-order coping across different traumatic groups is meaningful. Moreover, the relationship between the three higher-order coping factors and variables of psychological adjustment was examined. Generally, different relationships between the subtypes of coping and the outcomes of adaptation existed between female flood survivors and breast cancer patients. Further theoretical and practical implications for these relationships are discussed.

scholarly journals Antiferromagnetic transitions of Dirac fermions in three dimensions

2020 ◽  
Vol 102 (15) ◽  
Author(s):  
Yiqun Huang ◽  
Huaiming Guo ◽  
Joseph Maciejko ◽  
Richard T. Scalettar ◽  
Shiping Feng
Keyword(s):  
Three Dimensions ◽  
Dirac Fermions ◽  
Antiferromagnetic Transitions
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