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Migrating software product variants which are deemed similar into a product line is a challenging task with main impact in software reengineering. To exploit existing software variants to build a software product line (SPL), the first step is to mine the feature model of this SPL which involves extracting common and optional features. Thus, we propose, in this paper, a new approach to mine features...
Software component identification is one of the primary challenges in component base software engineering. Typically, the identification is done by analyzing existing software artefacts. Considering object-oriented systems, many approaches have been proposed to deal with this issue by identifying a component as a high cohesive and loose coupled set of classes. However, this assumption leads to two...
Iterative method based on Eric's work for serpentine mode converter design is established. It makes use of steepest ascent technique to search the local optimum, and jump mechanism can be learned to find the global optimum if necessary. Step size is given and works well during the procedure. Structure control methods can be used to realize some structural characteristics. Three kinds of mode converters...
This paper shows how intrinsic aspect-oriented design patterns can be used to implement object-oriented design patterns in order to achieve better compos ability compared to both original implementations of object-oriented design patterns and their aspect-oriented reimplementations. Director, an aspect-oriented pattern known for its ability to replace a number of object-oriented patterns, owes its...
Advances in micromachining technology can facilitate the integration of SAW (Surface Acoustic Wave) devices and CMOS circuitry on IC scale substrate for Monolithic fabrication. The optimal design and performance of these filters can be reached by using new Smart materials. The key component in the structure of the SAW device is the piezoelectric materials used which depends mainly on some important...
An intensity modulated fiber-optic position sensor, based on a fiber to bundle coupling and a readout system using a CMOS image camera together with fast routines for position extraction and calibration, is experimentally demonstrated. Further, a simulation of the complete sensor system setup is made, and possible sources of error are analyzed experimentally. Our analysis indicates the theoretical...
This paper presents some key issues in fiber-optic interferometric magnetic field sensors. Practically applicable methods to design and implement fiber-optic Michelson interferometer and transducers are described with experimental verifications. Detection scheme of traditional hardware demodulation is improved, and a new software demodulation method is addressed. Transducers were implemented by using...
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