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We present the design, fabrication and feedback control of an earthworm-inspired multi-material multi-actuator soft robot capable of locomoting inside pipes. The bodies of natural earthworms are composed of repeated deformable structural units, called metameres, that generate the peristaltic body motions required for limbless underground burrowing and above-ground crawling. In an earthworm, each individual...
Electrical energy in Peru is usually produced by mechanical energy conversion from strong flow rivers and flow winds. Nevertheless, when rotor works at maximum power it loses energy by heating, because of contact with bearings also heat evacuated affects thermal environmental conditions (local population, animals, and plants). On the other hand, a wrong positioning of rotor causes its unbalance. For...
Engines operations usually produce intense noise and may cause hearing injuries. Therefore, passive absorbers are being used to reduce or eliminate unwanted noise. However, this mechanism is connected with high costs and space requirements. Active Noise Control (ANC) allows to eliminate mentioned drawbacks and therefore offers a better solution. ANC can be designed by feedback, feedforward or hybrid...
This paper discusses a project that studied the relationship between citizen trust and social protest using visual analysis of approximately 11 million sentiment classified Tweets from the period of the 2014 Brazilian World Cup. The results of the study reveal that the 2014 World Cup protests in Brazil sprang from a wide range of grievances coupled with a relative sense of deprivation compared with...
Domains such as emergency management have a need for real-time change monitoring and pattern analysis, but interface design principles for real-time visual analysis situations are still under development. In this paper, we present early results from a design study in social media visual analytics for emergency management. Our motivation is a main information visualization challenge: the lack of clear...
Cardiac output (CO) and stroke volume (SV) are physiological variables that reflect the efficiency of the heart pumping blood to all tissues of the body. Access to measure cardiac output by non-invasive ways are still on development stage and two of the used methods are based on pulse contour analysis of the photoplethysmographic wave (PPG) and pulse wave transit time (PWTT) obtained by electro cardiography...
Within the Visual Analytics research agenda there is an interest on studying the applicability of multimodal information representation and interaction techniques for the analytical reasoning process. The present study summarizes a pilot experiment conducted to understand the effects of augmenting visualizations of affectively-charged information using auditory graphs. We designed an audiovisual representation...
A Stereoscopic Motion Tracking System is being developed for use with a video game system for rehabilitation of children affected by Cerebral Palsy. Two cameras will be used to track the (x, y) location of a motion, using stereoscopic principles this data will be used to calculate the Z location of the motion. This data will be collected for the duration of a game. Tracking the motion of a child playing...
In this paper, we validate the extended neglect tolerance model for estimation of human robot team performance in relation to robot autonomy and compare its results with the traditionally adopted neglect tolerance model which assumes zero false alarms in human robot interactions. Extended neglect tolerance model estimates robot performance in human robot teams, where the human operator switches control...
Data management is one of the most important problems in grid environments. One important challenge facing grid computing is the design of a grid file system. The Global Grid Forum defines a grid file system as a human-readable resource namespace for management of heterogeneous distributed data resources, that can span across multiple autonomous administrative domains. This paper evaluates Expand,...
In this paper we present an implementation of a computer-based railway information system. This system requires a distributed infrastructure that should offer a high availability. The solution proposed is distributed into three kind of nodes: a node that implements the system interface for administering and monitoring using an ubiquitous Web application, a central computer that stores the data and...
This paper presents main experiences on designing and implementing a prototype for remote monitoring and management of unattended remote train stations information system. The prototype has several types of information sources, for example proprietary host terminal, streaming voice, encoded files, database information, etc., in remote places with different qualities (synchronous, periodic, etc.)....
We present first results on the performance of a new generation of semitransparent amorphous silicon position detectors having good properties such as an intrinsic position resolution better than 5 mum, a spatial point reconstruction precision better than 10 mum, deflection angles smaller than 10 murad and transmission in the visible and NIR higher than 70%. In addition the sensitive area is very...
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