This paper describes work in progress on the development of a social timeline that aims to enrich feedback for people learning music within an online community. This interface is novel because it uses multiple layers for group discussions rather than the single layer found in websites such as SoundCloud. Multilayered timelines are commonly used for audio and video editing, but have not been use...

Heterogeneous systems combining several technologies will potentially overcome several performances and applicability limitations, as well as providing new useful features. However, their design is currently confronted to important challenges. One of the key challenges is the integration of pre-built components specific to different application domains (e.g. electrical, mechanical, optical, etc...

CFD was applied to evaluate the performance of both existing and improved designs for refrigerant distributors. In general, it is better to utilize a spherical base as compared with other shapes and to locate the orifice close to distributor base. These changes tend to improve the robustness of the distributor in terms of providing even flow and phase distribution in different outlet branches w...

Recently, distance learning (DL) has made great achievements in the area of communication space development and the automatic administration of educational processes [1]. Considerably less attention has been paid to the particularities of didactic materials design for DL. The authors claim that a special methodology of didactic material design, based on a cognitive approach, has to be developed...

In phylogenetic analyses of nucleotide sequences, 'homogeneous' substitution models, which assume the stationarity of base composition across a tree, are widely used, albeit individual sequences may bear distinctive base frequencies. In the worst-case scenario, a homogeneous model-based analysis can yield an artifactual union of two distantly related sequences that achieved similar base frequen...

The main objective of applying active control forces to base-isolated structures is to protect them in the event of an earthquake. An LMI-based control design is proposed to attenuate seismic disturbances in base-isolated structures under saturation actuators. Using a simplified model of the structure system, a control algorithm design is offered. Performance evaluation of the controller is car...