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Contern, Luxembourg

Hajri I.,University of Luxembourg | Goknil A.,University of Luxembourg | Briand L.C.,University of Luxembourg | Stephany T.,IEE Inc
Software and Systems Modeling | Year: 2016

In many domains such as automotive and avionics, the size and complexity of software systems is quickly increasing. At the same time, many stakeholders tend to be involved in the development of such systems, which typically must also be configured for multiple customers with varying needs. Product Line Engineering (PLE) is therefore an inevitable practice for such systems. Furthermore, because in many areas requirements must be explicit and traceability to them is required by standards, use cases and domain models are common practice for requirements elicitation and analysis. In this paper, based on the above observations, we aim at supporting PLE in the context of use case-centric development. Therefore, we propose, apply, and assess a use case-driven configuration approach which interactively receives configuration decisions from the analysts to generate product-specific (PS) use case and domain models. Our approach provides the following: (1) a use case-centric product line modeling method (PUM), (2) automated, interactive configuration support based on PUM, and (3) an automatic generation of PS use case and domain models from Product Line (PL) models and configuration decisions. The approach is supported by a tool relying on Natural Language Processing (NLP) and integrated with an industrial requirements management tool, i.e., IBM DOORS. We successfully applied and evaluated our approach to an industrial case study in the automotive domain, thus showing evidence that the approach is practical and beneficial to capture variability at the appropriate level of granularity and to configure PS use case and domain models in industrial settings. © 2016 Springer-Verlag Berlin Heidelberg

Seo S.,Gwangju Institute of Science and Technology | Park Y.,Gwangju Institute of Science and Technology | Park C.-J.,Gwangju Institute of Science and Technology | Lee J.H.,IEE Inc | Lee J.H.,Gwangju Institute of Science and Technology
IEEE Photonics Technology Letters | Year: 2016

We present a novel method to adjust the beam tilt angle and tune the axial focus of an electrowetting on dielectric liquid microlens encapsulated by parylene film. The lens system consists of four control electrodes with two immiscible spherical liquid lenses of different refractive indexes encapsulated by a flexible polymer. To tilt the incident beam, the lateral position and curvature of the inner lens were modulated by ac voltage applied to the electrodes. The measured lateral position and curvature of the inner lens allowed us to estimate the position of the focal point. The tunability of the tilt angle was increased by ±2.13° at an applied voltage of 45.3 Vrms when using thin dielectric layers. The resolvable image was 80% and 68% of the aperture diameter for 20 and 50 L&S/mm, respectively, assuming that the critical modulation transfer function value was 50% for quality imaging. © 2015 IEEE.

Jeppsson J.,North Carolina State University | Jeppsson J.,IEE Inc
Industrial Engineer | Year: 2010

The Powermonkey eXplorer allows various electronic devices such as iPods and PDAs to operate while tapping into a free and green energy source, even in the most remote areas. Made of durable rubber, the shock and water-resistant device weighs 2.4 ounces, utilizes solar power, and has an ability to detect when a device is fully charged. The device includes a storage case and a zipped nylon travel bag and can be customized to have yellow, blue, gray, or pink casing. An another electronic product, the Universal Solar Battery Charger, is available for less than $25 on CableOranizer.com, an eTailer offering a wide selection of eco-friendly electronics. The charger provides power to pairs of D, C, AA, and AAA-size batteries. The needle meter of the charger visually conveys information on the strength of the sunlight hitting the solar cell and estimates the charging time for different battery types.

IEE Inc | Date: 2008-07-01

Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments; apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling electricity; apparatus for recording, transmission or reproduction of sound or images; magnetic data carriers, recording discs; automatic vending machines and mechanisms for coin-operated apparatus; cash registers, calculating machines, data processing equipment and computers; fire extinguishers; processors (central processing units); chips (integrated circuits); printed circuits; integrated circuits; interfaces (for computers); electric and electronic sensors; detectors; pressure indicators; pressure sensors; speed and/or distance indicators; software (recorded programs); recorded programs for three-dimensional image recognition and processing; software for identifying the position of objects and people; radar apparatus; video cameras; three-dimensional object detectors; navigational apparatus for vehicles (onboard computers); three-dimensional object locators for vehicles (data acquisition and processing devices); electric and electronic monitoring apparatus; object and people distance and position detectors; sensors for vehicles; devices for locating the position of the driver and passengers in vehicles; parking assistance systems for vehicles; vehicle safety devices based on locating objects in and around vehicles; accident prevention devices for vehicles (safety devices). Vehicles; apparatus for locomotion by land, air or water; devices for pre-positioning or positioning headrests; devices for pretensioning safety belts (safety devices).

IEE Inc | Date: 2008-08-26

Blank magnetic discs for recording; cash registers, data processing and computer equipment, namely, data processors and computers for monitoring a car seat occupancy; fire extinguishers; Central processing units (CPU); electronic chips for the manufacturer of integrated circuits; printed circuits; integrated circuits; computer interface boards; electric and electronic sensors for identifying the spatial location of objects and people; pressure indicators; pressure sensors; speed and/or distance indicators; computer software for three-dimensional image recognition and processing, for car seat occupancy monitoring and static occupant classification; data acquisition and processing devices, namely, system for monitoring and classifying a car seat occupancy and suppressing airbag where needed; capacitive sensors, namely, electrical field sensors in the passenger seat to monitor and classify a car seat occupancy; electric field detectors and sensors and detectors and sensors for deformation or modification in an electric field, namely, for evaluating change in electrical field to detect seat occupancy. Land vehicles; air bags (safety devices for automobiles) and parts thereof for their deployment, pre-positioning or positioning. Technological consultation and research in the field of automobile safety improvement as well as design relating thereto; industrial analysis and research services, namely, research in the field of sensory technology, encoding apparatus, and vehicle safety; design of computers for others; custom design of three-dimensional image analysis and processing devices for vehicles based on personal selections made by the customer; mechanical research; technical research in the field of automobile safety improvement and ergonomics; technical research in the nature of technical project studies in the field of automobile safety improvements and ergonomics; design, development, installation, updating and maintenance of software; research and development of new products for others.

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