scholarly journals Current Understanding of the Biomechanics of Ventricular Tissues in Heart Failure

2019 ◽  
Vol 7 (1) ◽  
pp. 2 ◽  
Author(s):  
Wenqiang Liu ◽  
Zhijie Wang
Keyword(s):  
Heart Failure ◽  
Mechanical Properties ◽  
Computational Models ◽  
Ventricular Dysfunction ◽  
Important Determinant ◽  
Current Understanding ◽  
Future Research ◽  
Research Directions ◽  
Future Research Directions ◽  
The Common

Heart failure is the leading cause of death worldwide, and the most common cause of heart failure is ventricular dysfunction. It is well known that the ventricles are anisotropic and viscoelastic tissues and their mechanical properties change in diseased states. The tissue mechanical behavior is an important determinant of the function of ventricles. The aim of this paper is to review the current understanding of the biomechanics of ventricular tissues as well as the clinical significance. We present the common methods of the mechanical measurement of ventricles, the known ventricular mechanical properties including the viscoelasticity of the tissue, the existing computational models, and the clinical relevance of the ventricular mechanical properties. Lastly, we suggest some future research directions to elucidate the roles of the ventricular biomechanics in the ventricular dysfunction to inspire new therapies for heart failure patients.

A review on the mechanical properties of textile structural composite T-beams

2019 ◽  
Vol 90 (5-6) ◽  
pp. 710-727 ◽  
Author(s):  
Yiwei Ouyang ◽  
Xianyan Wu
Keyword(s):  
Mechanical Properties ◽  
High Performance ◽  
Raw Materials ◽  
Research Progress ◽  
Future Research ◽  
Research Directions ◽  
Structural Composite ◽  
Delamination Resistance ◽  
Application Potential ◽  
Future Research Directions

In order to review the most effective ways to improve the mechanical properties of composite T-beams and further increase their application potential, research progress on the mechanical properties of textile structural composite T-beams was summarized based on two-dimensional (2-D) ply structure composite T-beams, delamination resistance enhanced 2-D ply structure T-beams, and three-dimensional (3-D) textile structural composite T-beams; future research directions for composite T-beams were also considered. From existing literature, the research status and application bottlenecks of 2-D ply structure composite T-beams and T-beams with enhanced delamination resistance performance were described, as were the specific classification, research progress, and mechanical properties of 3-D textile structural composite T-beams. In addition, the superior mechanical properties of 3-D braided textile structural composite T-beams, specifically their application potential based on excellent delamination resistance capacity, were highlighted. Future research directions for composite T-beams, that is, the applications of high-performance raw materials, locally enhanced design, structural blending enhancement, functionality, and intelligence are presented in this review.

Barriers to the Success of Total Quality Management Implementation in Vietnam's Textile and Garment Companies

2019 ◽  
Vol 10 (3) ◽  
pp. 57-73
Author(s):  
Emmanuel (Manos) Kalargiros ◽  
Cindy Strickler ◽  
Long Pham ◽  
Thomas DeNardin ◽  
Tatyana N Coomer
Keyword(s):  
Quality Management ◽  
Service Quality ◽  
Total Quality Management ◽  
Future Research ◽  
Total Quality ◽  
Research Directions ◽  
The World ◽  
Managerial Implications ◽  
Future Research Directions ◽  
The Common

Vietnam is classified as one of the five largest textile and garment exporters in the world. With its ambition to engage more effectively in the global textile and garment supply chains, Vietnam's textile and garment enterprises have been implementing total quality management (TQM) programs in order to improve their product and service quality. However, many of Vietnam's textile and garment enterprises are facing barriers to successful TQM implementation. The objective of this study is to empirically examine these barriers to TQM faced by Vietnam's textile and garment enterprises and to compare the results with previous studies conducted with U.S. and Mexican businesses. The results of this study indicate five barriers to Vietnam's textile and garment enterprises' successful TQM implementation. Among these five barriers, the common barrier shared by Vietnamese, US and Mexican businesses is that employees are resistant to change. Managerial implications and future research directions are discussed.

scholarly journals Status, issues, and future of computer-aided part orientation for additive manufacturing

2021 ◽  
Author(s):  
Yuchu Qin ◽  
Qunfen Qi ◽  
Peizhi Shi ◽  
Paul J. Scott ◽  
Xiangqian Jiang
Keyword(s):  
Additive Manufacturing ◽  
Objective Function ◽  
Future Research ◽  
Research Directions ◽  
Computer Aided ◽  
Future Research Directions ◽  
The Common ◽  
Part Orientation

AbstractPart orientation is a critical task in the process of additive manufacturing product realisation. Recently, various computer-aided methods for this task have been presented in the literature. The coexistence of different methods generates a series of questions: What are the common characteristics of these methods? What are the specific characteristics of each method? What are the main issues in computer-aided part orientation for additive manufacturing currently? What are the potential research directions in this field in the future? To approach these questions, a review of the existing computer-aided part orientation methods for additive manufacturing is presented in this paper. This review starts with a clarification of a part orientation problem and a classification of the existing methods into two categories according to their process of solving the problem. An overview of the representative methods in each category is then carried out from the aspects of approaches for orientation search, generation, or selection, estimation of build orientation factors, determination of weights of factors, establishment of overall objective function, and demonstration of effectiveness. After that, a discussion about the main issues in computer-aided part orientation for additive manufacturing is documented based on the overview. Finally, a suggestion of some future research directions in this field is reported.

scholarly journals Magnetic Fields on Solar–Like Stars: The First Decade

1990 ◽  
Vol 138 ◽  
pp. 427-441 ◽  
Author(s):  
S. H. Saar
Keyword(s):  
Magnetic Properties ◽  
Magnetic Fields ◽  
Current Understanding ◽  
Future Research ◽  
Research Directions ◽  
Analysis Techniques ◽  
The Past ◽  
Magnetic Analysis ◽  
Future Research Directions

I review the progress made over the past decade in the measurement of magnetic fields on solar–like stars. I describe the evolution of magnetic analysis techniques, summarize our current understanding of stellar magnetic properties, and outline some future research directions.

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