scholarly journals Development of Self-Healing Zirconium-Silicide Coatings for Improved Performance Zirconium-Alloy Fuel Cladding

2018 ◽  
Author(s):  
Kumar Sridharan ◽  
Robert Mariani ◽  
Xianming Bai ◽  
Peng Xu ◽  
Ed Lahoda
Keyword(s):  
Zirconium Alloy ◽  
Self Healing ◽  
Fuel Cladding ◽  
Improved Performance ◽  
Zirconium Silicide

A Two Phases Self-healing Framework for Service-oriented Systems

2021 ◽  
Vol 15 (2) ◽  
pp. 1-25
Author(s):  
Amal Alhosban ◽  
Zaki Malik ◽  
Khayyam Hashmi ◽  
Brahim Medjahed ◽  
Hassan Al-Ababneh
Keyword(s):  
Web Services ◽  
A Priori ◽  
Fault Management ◽  
Service Selection ◽  
Exception Handling ◽  
Self Healing ◽  
Service Oriented Architectures ◽  
Service Oriented ◽  
Improved Performance ◽  
High Level

Service-Oriented Architectures (SOA) enable the automatic creation of business applications from independently developed and deployed Web services. As Web services are inherently a priori unknown, how to deliver reliable Web services compositions is a significant and challenging problem. Services involved in an SOA often do not operate under a single processing environment and need to communicate using different protocols over a network. Under such conditions, designing a fault management system that is both efficient and extensible is a challenging task. In this article, we propose SFSS, a self-healing framework for SOA fault management. SFSS is predicting, identifying, and solving faults in SOAs. In SFSS, we identified a set of high-level exception handling strategies based on the QoS performances of different component services and the preferences articled by the service consumers. Multiple recovery plans are generated and evaluated according to the performance of the selected component services, and then we execute the best recovery plan. We assess the overall user dependence (i.e., the service is independent of other services) using the generated plan and the available invocation information of the component services. Due to the experiment results, the given technique enhances the service selection quality by choosing the services that have the highest score and betters the overall system performance. The experiment results indicate the applicability of SFSS and show improved performance in comparison to similar approaches.

Creep Tests Research on a New Zirconium Alloy for Nuclear Fuel Cladding Tubes

2012 ◽  
Vol 151 ◽  
pp. 47-51
Author(s):  
Xin Ming Meng ◽  
Fei Xue ◽  
Wei Wei Yu ◽  
Hong Mei Guo
Keyword(s):  
Nuclear Fuel ◽  
Zirconium Alloy ◽  
Axial Direction ◽  
Sem Analysis ◽  
Steady State Creep ◽  
Fuel Cladding ◽  
Steady State Creep Rate ◽  
Creep Life ◽  
Creep Tests ◽  
Nuclear Fuel Cladding

Hoop creep tests and axial creep tests were carried out on a new zirconium alloy for nuclear fuel cladding tubes at 375 °C. The result indicated that the proportion of the second creep stage decreased as the stress increasing, meanwhile, the steady-state creep rate increased in both creep test modes. However, the ability of creep rupture resistance in the hoop direction is more strengthen than that in axial direction. The SEM analysis showed that the creep fracture was mainly dimple toughness fracture. The dimple for low stress was intensive and small. The fitting curve by the θ function was well coincided with the test data, so the creep life can be analyzed by θ function.

Embedded Shape-Memory Alloy Wires for Improved Performance of Self-Healing Polymers

2008 ◽  
Vol 18 (15) ◽  
pp. 2253-2260 ◽  
Author(s):  
Eva L. Kirkby ◽  
Joseph D. Rule ◽  
Véronique J. Michaud ◽  
Nancy R. Sottos ◽  
Scott R. White ◽  
...  
Keyword(s):  
Shape Memory Alloy ◽  
Shape Memory ◽  
Self Healing ◽  
Improved Performance
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