In this paper, the residual stress of thermal spray coatings in gas turbine component by curvature method has been studied. The samples and shaft were coated by hard WC-12Co cermets using high velocity oxy fuel (HVOF) after preparation in same conditions. The curvature of coated samples was measured by using of coordinate measurement machine (CMM). The metallurgical and Tribological studies has...

While computational estimation of difficulty of words in the lexicon is useful in many educational and assessment applications, the concept of scalar word difficulty and current corpus-based methods for its estimation are inadequate. We propose a new paradigm called word meaning maturity which tracks the degree of knowledge of each word at different stages of language learning. We present a com...

The history of the watershed for segmentation is linked with the technological development of the image processing devices. In the mid seventies, computer memory was expensive, and computers slow. At the CMM we developed the first image analyzers, subsequently commercialized by Leitz under the name TAS holding binary image memories [20]. The result of an image transform may be stored in a memor...

One of the main problems with software engineering is due to the difficulties in evaluating and improving our software processes, especially in the light of the fact that reuse depends on a process which supports it. Generally used approaches to the evaluation and improvement of software processes are based on CMM, for example. In this paper we present a technique to improve software processes ...

The purpose of this study is to characterize the relationship between organic material and thermal maturity during the process of evaluation of hydrocarbon potential. Samples studied include Miocene high volatile bituminous coal and coaly shale collected from outcrops and exploration wells in Hsinchu-Miaoli area, NW Taiwan, density centrifuge separated macerals, bituminous coal and anthracite f...

Process assessment and process improvement are both very difficult tasks since we are either assessing or improving a concept rather than an object. A quality process is expected to produce quality products efficiently. Most of the existing models such as CMM, ISO 9001/9000-3 etc. intend to enhance the maturity or the quality of an organization with the assumption that a matured organization wi...

common heat transfer fluids such as water, ethylene glycol, and engine oil have limited heat transfer capabilities due to their low heat transfer properties. nanofluids are suspensions of nanoparticles in base fluids, a new challenge for thermal sciences provided by nanotechnology. in this study, we are to optimize and report the effects of various parameters such as the ratio of the thermal co...

Five type II kerogens, shown by elemental analysis and Rock-Eval pyrolysis to represent a gradient of thermal maturity, were further characterized using a range of solid-state 13C NMR spectroscopic techniques. 13C cross polarization (CP) NMR spectra of the kerogens confirmed the well-established pattern of increasing aromaticity with increasing thermal maturity. Spin counting showed that CP obs...

This paper presents a methodology for software analysis and design and an associated graph based representation The methodology addresses the speci cation of both static and dynamic aspects of an application The representation includes object oriented data modeling features The speci cations are modular reusable and adaptive that is reper cussions from underlying model modi cations are limited ...