Background Introduction There is a growing awareness to save and conserve wildlife so that future generations can enjoy the biodiversity of our planet. As it is, we are witnessing changes in climate around various regions around the globe (Yavasli et al. 2015). These climatic changes have caused natural habitats that have existed for aeons to slowly disappear. Without a suitable environment in ...

In this paper we present a new scheduling problem and describe a shortest path based heuristic as well as a dynamic programming based exact optimization algorithm to solve it. The Selective Multi-Category Parallel-Servicing Problem (SMCPSP) arises when a set of jobs has to be scheduled on a server (machine) with limited capacity. Each job requests service in a prespecified time window and belon...

A finite source queueing system is studied in which jobs generated by a source arrive independently but are served in a batch manner. The servicing includes source interdependencies. The input and service distributions are allowed to be generally distributed. A nonstandard product form expression is obtained for the steady state joint queue length distribution and shown to be insensitive (i.e. ...

The Orbital Express Demonstration System (OEDS) flight test, flown from March to July 2007, achieved all of its mission objectives, demonstrating a suite of capabilities required to autonomously service satellites on-orbit. Demonstrations were performed at varying levels of autonomy, from operations with pause points where approval from ground was required to continue, to fully autonomous opera...

Aircraft hydraulic systems are composed of several components connected and distributed along the aircraft. Monitoring leakage of these components are time consuming tasks, and often cover only some parts of the system. The objective of this work is to present a method to estimate hydraulic leakage and recommend maintenance and servicing tasks using aircraft standard sensors such as fluid tempe...

This paperwork presents the design and test of a microcontroller-based ECG (electrocardiogram) simulator. The ECG simulator is capable of generating nine ECG signals and a calibrated square wave (1 Hz, 1 mV at Lead II). The synthesized signals are: normal sinus rhythm (60 beats per minute – BPM, and 90 BPM), sinus bradycardia (30 BPM), sinus tachycardia (120, 180 and 240 BPM), sinus rhythm with...

The transport interchange hubs development (TIH) has recently become an important urban issue. In our country, this problem being quite new is determined by planning approaches aimed at solving it. hub includes a complex of several modes performing operations for servicing transit, local and transportation goods passengers.

Live and on-demand video streaming has emerged as the most popular application for the Internet. One reason for this success is the pragmatic decision to use HTTP to deliver video content. However, while all web servers are capable of servicing HTTP streaming video workloads, web servers were not originally designed or optimized for video workloads. Web server research has concentrated on reque...

Space robotics will become a key technology for the exploration of outer space and the operation and maintenance of space stations, satellites and other platforms, saving costs and relieving man from dangerous tasks. But we do not have to wait until robots are really autonomous or intelligent, since by modern tele-operation and tele-presence we are able to remotely control robot systems from th...

The increasing number of launched satellites per year calls for solutions to keep free operational space for telecommunication systems in GEO, as well as to avoid the endangering of space systems in LEO and of the public living on Earth. Malfunctions of satellite sub-systems like solar generators, control systems, or thrusters cannot be avoided. Therefore, on-orbit servicing (OOS) will be a man...