11 research outputs found
Central Nervous System (CNS) Based Motion Control
Motion simulators are widely used in several applications ranging from research to commercial training and entertainment in order to replicate real movement situation. These motions can be sensed by human perception organ called Central Nervous System (CNS). This research presents a novel control algorithm called Central Nervous System (CNS) based control that aims to create realistic perception of vehicle simulation. CNS-based motion control was evaluated by computer simulation to classical, adaptive and optimal washout filter. In addition, comparisons of human motion perception are performed on Force Dynamics 301 simulator for longitudinal acceleration driving test of all four washout filters. The subjects were seated in the simulator. Their motion perceptions were measured through vestibulo-ocular reflex (VOR) using EyeSeeCam vHit camera and compared to the estimated VOR from CNS model. The results revealed that CNS-based motion control can crucially reduce the workspace and provide realistic motion sensation.
 
Realgar nanoparticle-based microcapsules: preparation and in-vitro/in-vivo characterizations
Development of anti-corrosion coating based on phosphorylated ethyl cellulose microcapsules
Microencapsulation of tea tree oil by spray-drying with methyl cellulose as the emulsifier and wall material together with chitosan/alginate
The use of encapsulation to guarantee the stability of phenolic compounds
Society is increasingly concerned with wellâbeing and health issues. Knowing
the longâterm effects of a poor diet, tobacco and alcohol consumption, sedentary
life, and high levels of stress, consumers are becoming more attracted to food
products with recognized beneficial health effects. Phenolic compounds, including
anthocyanins, have been described as powerful antioxidants, and are said to
have other bioactive attributes such as antimicrobial or even antitumoral properties,
usually correlated with the presence of these compounds in food products
(Carocho and Ferreira, 2013a; Carocho and Ferreira, 2013b; Martins et al., 2015).
There are numerous food matrices naturally enriched with phenolic compounds,
but nowadays, with the increasing market demand, these extracts or their isolated
individual compounds are being incorporated into many other products.
However, some of these molecules are naturally instable and/or susceptible to
degradation during food processing or storage. In general, phenolic compounds
with high molecular weight have very poor solubility and stability in water (Li
et al., 2015).
To overcome the problems related with the direct use of bioactives in their
free form in food matrices, the microencapsulation technique, through the
development of microâsized particle systems, will ensure protection of the bioactive
compounds and, additionally, functional properties to the final product.
The organoleptic characteristics of phenolic extracts and isolated compounds are
other important factors that drive researchers to study encapsulation of phenolic
compounds, because many of them have bitter or astringent tastes, due to the presence of terpenes and glycosylates (Drewnowski and GomezâCarneros,
2000). This factor is a decisive point for the food industry that must be considered
when developing novel products, because acceptance by consumers is
ultimately the most important reason for these studies. Controlled and targeted
deliveryârelease studies are also crucial to understanding how the microspheres
will interact and behave as they transit the gastrointestinal tract, because it is
important to know if the bioactive form of the encapsulated phenolic compounds
is maintained (Dias et al., 2015).info:eu-repo/semantics/publishedVersio