High performance levels in tough conditions

World Pumps ◽  
2016 ◽  
Vol 2016 (11) ◽  
pp. 8
Keyword(s):  
High Performance ◽  
Performance Levels

scholarly journals Inverse Optimum Safety Factor Method for Reliability-Based Topology Optimization Applied to Free Vibrated Structures

2019 ◽  
pp. 8-19 ◽  
Author(s):  
Ghias Kharmanda ◽  
Imad R. Antypas ◽  
Alexey G. Dyachenko
Keyword(s):  
Topology Optimization ◽  
Structure Function ◽  
Modal Analysis ◽  
Safety Factor ◽  
Optimization Model ◽  
High Performance ◽  
Structural Type ◽  
Efficient Tool ◽  
Performance Levels ◽  
Reliability Level

Introduction. The classical topology optimization leads to a prediction of the structural type and overall layout, and gives a rough description of the shape of the outer as well as inner boundaries of the structure. However, the probabilistic topology optimization (or reliability-based topology optimization) model leads to several reliability-based topologies with high performance levels. The objective of this work is to provide an efficient tool to integrate the reliability-based topology optimization model into free vibrated structure. Materials and Methods. The developed tool is called inverse optimum safety method. When dealing with modal analysis, the choice of optimization domain is highly important in order to be able to eliminate material taking account of the constraints of fabrication and without affecting the structure function. This way the randomness can be applied on certain boundary parameters. Results. Numerical applications on free vibrated structures are presented to show the efficiency of the developed strategy. When considering a required reliability level, the resulting topology represents a different topology relative to the deterministic resulting one. Discussion and Conclusion. In addition to its simplified implementation, the developed inverse optimum safety factor strategy can be considered as a generative tool to provide the designer with several solutions for free vibrated structures with different performance levels.

Italian Industrial Districts

2011 ◽  
pp. 63-98 ◽  
Author(s):  
Paola Falcone
Keyword(s):  
International Economic ◽  
Value Creation ◽  
High Performance ◽  
Scientific Research ◽  
Macro Level ◽  
Industrial Districts ◽  
Scientific Communities ◽  
Performance Levels ◽  
Specific Focus ◽  
Level Of Analysis

The high performance levels gained by firms of Italian industrial districts raised both the international economic and managerial scientific communities’ interest and stimulated the production of a series of research studies concerning the micro as well as the macro level of analysis. This chapter aims to identify, describe, and interpret the phenomenon of Italian industrial districts with a specific focus on the analysis of the sources and the forms of value creation in light of the last 30 years of scientific research

Dietary Supplementation of High-Performance Korean and Japanese Judoists

2013 ◽  
Vol 23 (2) ◽  
pp. 119-127 ◽  
Author(s):  
Jongkyu Kim ◽  
Namju Lee ◽  
Jangwon Lee ◽  
Sung-sook Jung ◽  
Sung-ki Kang ◽  
...  
Keyword(s):  
Dietary Supplements ◽  
Dietary Supplement ◽  
High Performance ◽  
Dietary Supplementation ◽  
Performance Level ◽  
Competitive Performance ◽  
Performance Levels ◽  
Team Members ◽  
Significant Difference

This research investigated patterns of the use of dietary supplement and doping awareness among high-ranked judoists from 2 countries. Korean (70 men and 31 women) and Japanese (37 men and 34 women) national judo team members were divided into 2 groups (high and low competitive performance levels) according to their international and national rankings. Fifty-nine percent of Korean and 61% of Japanese judoists consumed dietary supplements. Eighty-eight percent of high- and 51% of low-competitive-performance-level Korean judoists consumed dietary supplements. Sixty-eight percent of high- and 57% of low-competitiveperformance- level Japanese judoists consumed dietary supplements. Oriental supplements (34%), vitamins (23%), and protein powder (12%) were the most commonly consumed dietary supplements in Korean judoists. Vitamins (45%), protein powder (33%), and minerals (15%) were the most commonly consumed dietary supplements in Japanese judoists. Thirty-eight percent of judoists from both countries had not received any proper education about antidoping, and 44% of judoists from both countries had not received knowledge of antidoping legislation. There was a significant difference in education about antidoping between high and low competitive-performance levels of Korean judoists (p < .001). Korean judoists received significantly less antidoping education than Japanese judoists (p < .001). The associations for antidoping education and knowledge of antidoping legislation with the use of dietary supplements were 3.46 (95% CI = 1.31–9.12) and 1.63 (95% CI = 0.71–3.76), respectively. Our findings showed that use of dietary supplements in judoists from both countries was increased after experiencing antidoping education.

Progress towards a low-cost commercial coated conductor

2001 ◽  
Vol 689 ◽  
Author(s):  
Suresh Annavarapu ◽  
Nguyet Nguyen ◽  
Sky Cui ◽  
Urs Schoop ◽  
Cees Thieme ◽  
...  
Keyword(s):  
Critical Current ◽  
High Performance ◽  
Low Cost ◽  
Critical Currents ◽  
Short Length ◽  
Coated Conductor ◽  
High Quality ◽  
Ybco Films ◽  
Performance Levels ◽  
Current Densities

ABSTRACTYBCO films prepared from metal trifluoroacetate (TFA) precursors on oxide-buffered textured non-magnetic substrates have achieved performance levels equaling that on oxide buffered textured Ni substrates. Critical current densities of 0.7 MA/cm2 to 1.0 MA/cm2 have been achieved in 0.4 µm thick YBCO films on short-length of CeO2/YSZ/Y2O3/Ni/Ni-13wt%Cr substrates. High-quality epitaxial buffers comprising a Ni layer, Y2O3 seed, YSZ barrier and CeO2 cap layers have been deposited over meter long tapes of deformation textured Ni and Ni-13%Cr using reel-to-reel processes. High-performance TFA-based YBCO films have been deposited on 0.1 m to 0.3 m lengths of these oxide buffered substrates using reel to reel processes. Critical current densities up to 1.0 MA/cm2 have been achieved in 0.4 µm thick YBCO films on CeO2/YSZ/Y2O3/Ni substrates. Using multiple coats of the metal trifluoroacetate precursors, thicker YBCO films have been demonstrated on oxide buffered substrates. Critical currents in excess of 100A/cm-width have been achieved for 1.2 µm -1.6 µm thick YBCO films on short lengths of CeO2/YSZ/Y2O3/Ni substrates.

Sign in / Sign up

Export Citation Format

Share Document