Asset Maintenance: A Primary Support Function

Author(s):  
Rama Srinivasan Velmurugan ◽  
Tarun Dhingra
2013 ◽  
Vol 33 (1) ◽  
pp. 45-55
Author(s):  
Henryk Tomaszek ◽  
Ryszard Kaleta ◽  
Mariusz Zieja

Abstract The paper deals with the process of shaping the operational effectiveness of military aircraft under some specific circumstances, i.e. while flying on missions. The term ‘effectiveness’ has been assumed to mean the probability of accomplishing an air mission by one of the aeronautical system’s components, i.e. the aircraft together with its pilot. There is a chance to improve the effectiveness, or make it worse, in subsequent flights, depending on how the maintenance support function. The correct operation and maintenance of the system’s components should provide that the following condition is satisfied: * Pk ≥ P , where Pk - effectiveness in the k-th flight, and P* - the lower demanded limit of effectiveness. The Authors drew their inspiration for this paper from publication [2].


2016 ◽  
Author(s):  
Austin Nelson ◽  
Adarsh Nagarajan ◽  
Kumar Prabakar ◽  
Vahan Gevorgian ◽  
Blake Lundstrom ◽  
...  
Keyword(s):  

2021 ◽  
Vol 111 ◽  
pp. 103845
Author(s):  
Keguo Sun ◽  
Yiqin Hong ◽  
Weiping Xu ◽  
Zonghao Hou ◽  
Xu Liu ◽  
...  

Land ◽  
2021 ◽  
Vol 10 (3) ◽  
pp. 232
Author(s):  
Jie Zheng ◽  
Lisha Na ◽  
Binglin Liu ◽  
Tiantian Zhang ◽  
Hao Wang

Suburban rural landscape multifunction has received increasing attention from scholars due to its high demand and impact on main urban areas. However, few studies have been focused on suburban rural landscape multifunction because of data constraints. The present study quantified the four landscape services based on ecological service system, i.e., regulating function (RF), provision function (PF), culture function (CF), and support function (SF), determined the interaction through the Spearman correlation coefficient, and ultimately identified the landscape multifunction hotspots and dominant functions through overlay analysis. The result indicated that suburban rural communities have exhibited the characteristics of regional multifunction, and the landscape multifunction hotspots accounted for 64.2%; it should be particularly noted that, among single-function, dual-function, and multifunction hotspots, both support function, and culture function was dominant, while only one case was found in which the regulating function was dominant. Furthermore, all landscape functions other than SF-CF exhibited certain correlations. The study suggests that planning and management should be performed in future in combination with landscape multifunction to ensure the sustainable development of suburban rural communities.


2020 ◽  
Vol 2020 ◽  
pp. 1-9
Author(s):  
Zhe Liu

Double primary support structures could effectively solve the problem of large deformation of surrounding rock for soft rock tunnels. However, the mechanical behavior of this new support structure is still incomplete, and the design method should be revised. Based on the theory of energy conversion, this paper analyzes the support characteristic curve of double primary support and puts forward the dynamic design method of double primary support. Considering that the secondary lining can be set after monitoring the deformation amount and deformation rate of the first primary support, its support parameters can be dynamically adjusted according to the actual situation. By applying the double primary support design method in the Maoxian tunnel of Chenglan Railway, the field monitoring results show that the double primary support has a significant effect on the energy release of surrounding rocks, greatly reducing the load acting on the secondary lining and ensuring the safety and reliability of the tunnel structure.


2007 ◽  
Vol 30 (5) ◽  
pp. 879-883 ◽  
Author(s):  
Guoqing Hu ◽  
Zhenqiu Sun ◽  
Ming Hu ◽  
Qiang Xia ◽  
Xunqiang Yin ◽  
...  

2003 ◽  
Vol 4 (1) ◽  
pp. 101-105 ◽  
Author(s):  
Joanne Tortorici Luna

The predicament faced by refugees is ancient. To be hunted, homeless, and unwelcome is an experience that has been shared by groups of persecuted people across the ages. This article describes issues pertinent to children who are refugees, with recommendations for addressing their special needs. Suggestions for assistance include helping refugee communities become active in identifying and solving their own problems; supporting comprehensive programs rather than focusing on resolving individual symptoms; and providing services oriented toward strengthening, rather than replacing the family as a primary support system for children.


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