scholarly journals Cooling Strategy for Improving the Performance of Endurance Sports in Heat

2017 ◽  
Vol 27 (5) ◽  
pp. 591-599 ◽  
Author(s):  
Chan-Ho Park ◽  
Yi-Sub Kwak
Kerntechnik ◽  
2020 ◽  
Vol 85 (2) ◽  
pp. 88-97
Author(s):  
D. Zhang ◽  
X. Ran ◽  
Y. Zhang ◽  
H. Zhang

2021 ◽  
Vol 35 ◽  
pp. 102301
Author(s):  
K. Monika ◽  
Chanchal Chakraborty ◽  
Sounak Roy ◽  
Srikanta Dinda ◽  
Satyapaul A. Singh ◽  
...  

2021 ◽  
Vol 15 (2) ◽  
pp. 177-186
Author(s):  
Caner-Veli Ince ◽  
Anna Chugreeva ◽  
Christoph Böhm ◽  
Fadi Aldakheel ◽  
Johanna Uhe ◽  
...  

AbstractThe demand for lightweight construction is constantly increasing. One approach to meet this challenge is the development of hybrid components made of dissimilar materials. The use of the hybrid construction method for bulk components has a high potential for weight reduction and increased functionality. However, forming workpieces consisting of dissimilar materials requires specific temperature profiles for achieving sufficient formability. This paper deals with the development of a specific heating and cooling strategy to generate an inhomogeneous temperature distribution in hybrid workpieces. Firstly, the heating process boundaries with regard to temperature parameters required for a successful forming are experimentally defined. Secondly, a design based on the obtained cooling strategy is developed. Next a modelling embedded within an electro-thermal framework provides the basis for a numerical determination of admissible cooling rates to fulfil the temperature constraint. Here, the authors illustrate an algorithmic approach for the optimisation of cooling parameters towards an effective minimum, required for applicable forming processes of tailored forming.


2021 ◽  
Vol 145 ◽  
pp. 111164
Author(s):  
Sandro Nižetić ◽  
Mišo Jurčević ◽  
Duje Čoko ◽  
Müslüm Arıcı

2018 ◽  
Vol 1 (46) ◽  
pp. 11-15
Author(s):  
Jakub Szwed ◽  
Michał Kowara ◽  
Marcin Grabowski

The aim of this article is to demonstrate the impact of physical exercise on the development of arrhytmias in athletes. The studies show that this relation exist and concerns endurance sports practiced for a long time. In addition, this article contains review of the most common arrhythmias in athletes and appropriate recommendations. The time of arrhythmias onset depends on the presence of structural heart diseases. If the cardiac disorder is absent the arrhythmias appear at the age 40-50. If the structural heart diseases exist, the arrhythmias occur in young athletes and are more dangerous (can lead to sudden cardiac arrest). The most common arrhythmia in endurance athletes is atrial fibrillation. In order to avoid negative results of endurance sports, such as cardiac arrhythmias, the reliable examinations are necessary, especially to exclude structural cardiac diseases. These examinations should be undertaken before initiation of endurance sport training and routinely later, in course of follow-up.


2010 ◽  
Vol 148-149 ◽  
pp. 359-362
Author(s):  
Wen Feng Huo ◽  
Xian Lei Hu ◽  
Bing Xing Wang ◽  
Xiang Hua Liu

Air cooling may decrease rolling efficiency in controlled rolling for needing long holding time to obtain the correct rolling temperature because of small cooling rate. The intermediate cooling can increate the cooling rate, and improve rolling efficiency. Experiment was carried out to research the effect of intermediate cooling on rolling efficiency. The influence of different cooling mode on the temperature distribution and the temperature profile characteristics of different cooling strategy are analyzed with FEM. It shows that intermediate cooling can decrease the holding time effectively, and improve rolling efficiency; the temperature homogeneity in thickness direction can be improved by opening the header one after another and cooling the plate by oscillating cooling.


Sign in / Sign up

Export Citation Format

Share Document