نتایج جستجو برای: plant life extension
تعداد نتایج: 1265244 فیلتر نتایج به سال:
These days, the extension of reactor operation periods and plant life extension is the worldwide trend for efficient and economical operation of nuclear power plants. Plant maintenance methods have been changing from the traditional time-based maintenance (TBM) or periodical shutdown maintenance (where reactor operation is stopped and all the equipment is checked, disassembled, tested, and asse...
Sir2 is a conserved deacetylase that modulates life span in yeast, worms, and flies and stress response in mammals. In yeast, Sir2 is required for maintaining replicative life span, and increasing Sir2 dosage can delay replicative aging. We address the role of Sir2 in regulating chronological life span in yeast. Lack of Sir2 along with calorie restriction and/or mutations in the yeast AKT homol...
Aging is the primary risk factor for cognitive decline, an emerging health threat to aging societies worldwide. Whether anti-aging factors such as klotho can counteract cognitive decline is unknown. We show that a lifespan-extending variant of the human KLOTHO gene, KL-VS, is associated with enhanced cognition in heterozygous carriers. Because this allele increased klotho levels in serum, we an...
This research defined the constituents of, and developed a generalized method for predicting remaining useful life of mechanical systems. Methods for analyzing system status and health and for predicting system life expectancy need to be more powerful, insightful. reliable, and robust for data collected onboard systems in real time. Dynamic structural models were constructed to model the steady...
This research focuses on defining the constituents, and developing a method for predicting the remaining useful life of systems (and predicting the cause of system failure). The goal of this work is to specify a dynamic system that can be used to change the operating envelope of the target system. We investigated advanced statistical methods for characterizing and predicting various types of de...
Various notions of conformance between operations of a subtype and operations of a supertype have been proposed (e.g., contravariance and covariance). Similarly, diierent notions of \consistent extension" of object life cycles can be deened to meet various objectives. This paper treats inheritance of object life cycles in the realm of behavior diagrams that identify legal sequences of states an...
With many offshore installations in the UK sector of the North Sea now reaching or being in excess of their original anticipated design life, there is a particular need to evaluate approaches to structural integrity management by offshore operators. Ageing processes can affect the structural integrity of the installation and demonstration of adequate performance beyond its original design life ...
Extension research has been conducted over the past three years over the various abattoirs, technological institutions and meat processing plants, in order to establish means of enhancing safety as well as shelf life extension. The technology applied was the process of electro-chemical activation of water by an on-site device. This device makes use of a powerful electrical field to split a sali...
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