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Design and Validation of a Low-Power Network Node for Pervasive Applications
Juan-Carlos Cano,Carlos T. Calafate,Pietro Manzoni,Jose-Manuel Cano,Eva Gonzalez 보안공학연구지원센터 2008 International Journal of Software Engineering and Vol.2 No.1
Pervasive computing refers to making many computing devices available throughout the physical environment, while making them effectively invisible to the user. To further increase the applicability of ubiquitous computing, minimizing energy consumption and hardware cost are mandatory in real world applications. In this paper we present our platform prototype for ubiquitous computing, which has been implemented based on commercial Bluetooth off-theshelf components. It allows every object to be augmented with processing and communication capabilities in order to make them "smart". We validate our proposal by evaluating the tradeoff between power consumption and performance for our experimental prototype. Our prototype has been used in a museum application to support ubiquitous computing between devices without requiring a priori knowledge of each other.
Towards a centralized route planning solution supporting time dependencies
Carlos t. Calafate,David Soler,Juan-Carlos Cano,Pietro Manzoni 한국산업정보학회 2014 한국산업정보학회 학술대회논문집 Vol.2014 No.1
Future route planning solutions are expected to provide significant Improvements in terms of route traversal times by accounting for both estimated and real-time traffic congestion states. Compared to current solutions, mostly based on static path segment costs, the main challenge is how to obtain reliable traffic congestion estimations for all the streets/avenues in a city for the different times of the day, for every day in a year. Modeling such a tremendous amount of data can be time-consuming and, additionally, centralized computation of optimal routes based on such time-dependencies has very high computational requirements. As a first approach to this problem, we propose a heuristic to reduce the modeling effort to a minimum while maintaing the benefits of time-dependent traffic congestion modeling. The effectiveness of this heuristic is assessed for the city of Valencia, Spain.
A New Formulated Stable Papin-pectin Aerosol Spray for Skin Wound Healing
Karla Monzerratt Gregorio Jáuregui,Juan Carlos Cano Cabrera,Elda Patricia Segura Ceniceros,Jose Luis Martínez Hernández,Anna Ilyina 한국생물공학회 2009 Biotechnology and Bioprocess Engineering Vol.14 No.4
A new spray-on topical wound debrider composition consisting of 0.1% w/v papain immobilized in 6% w/v pectin gel was formulated for skin wound healing. The stability of the enzyme activity of this new formulated spray was compared with the 0.1% w/v papain in water solution at the refrigerated temperature of 4 and 75°C. Two aerosol propellants, air and nitrogen, were evaluated for their efficacy. The new formulated spray was then evaluated for its thermal stability under air and N2 at 75°C. All enzyme activity of papain was measured with a spectrophotometer using casein as a substrate at 37°C and in 0.1 M phosphate buffer at pH 6, as well as trichloral acetic acid to separate the product of casein hydrolysis. All the evaluations showed the new aerosol spray formulation to be far better than the liquid formulation in storage stability and thermal stability at 75°C under atmospheric or higher pressures. The new formulation was tested in a rabbit experiment to evaluate the effectiveness of wound healing. As compared to untreated wound, the formulated spray clearly was superior, yielding a 20% more healing progress in the first 4 days alone.
( Laura Alonso Guardo ),( Carlos Cano Gala ),( David Sanchez Poveda ),( Pablo Rueda Juan ),( Francisco Jose Sanchez Montero ),( Jose Carlos Garzon Sanchez ),( Juan Ignacio Santos Lamas ),( Miguel Vice 대한통증학회 2016 The Korean Journal of Pain Vol.29 No.1
Background: Sacral nerve stimulation is a therapeutic option with demonstrated efficacy for conditions presenting with perineal pain caused by different etiologies. We aimed to assess whether a sacral electrode (InterStimⓡ, Medtronic, Minneapolis, MN, USA) inserted through the caudal pathway is able to offer an acceptable level of sacral stimulation and rate of catheter migration. Methods: We present 12 patients with pelvic pain who received sacral neuromodulation via the sacral hiatus with the InterStim electrode. We evaluated patient satisfaction as well as migration and removal of the electrode, if necessary. Results: Our experience included 12 patients, 10 women and two men, with a mean age of 60 years. In eight of the 12 patients, the initial therapy was effective, and the final system implantation was performed. During subsequent follow-up, patient satisfaction was good. To date, there have been no cases of electrode displacement or migration. Conclusions: The caudal insertion of the InterStim electrode, with its own fixation system, and initially designed for transsacral insertion, appears in our experience to be a satisfactory option which can minimize electrode displacements, achieving similar results in therapeutic efficacy and causing no difficulties in removal. (Korean J Pain 2016; 29: 23-28)
( Cecilia Perez-cruz ),( Carlos N. Cano-gonzalez ),( Jose Fuentes ),( Nagamani Balagurusamy ),( Carolina E. Vita ),( Roque A. Hours ),( Cristobal N. Aguilar ),( Sebastian F. Cavalitto ),( Juan C. Cont 한국키틴키토산학회 2018 한국키틴키토산학회지 Vol.23 No.3
Aspergillus niger biomass, an industrial by-product of citric acid fermentation is an emergent source of glycoderivatives with applications in biofuel, cosmetics, feed, energy, food, medicine, and nanotechnology. In this study, the effect of purified neutral protease for deprotenization of fungal biomass studied at various levels (0, 5, 10, 20 and 40 U/100 mg of biomass) and the saccharification of fungal biomass was evaluated with amylolytic enzymes and chitosanases. The efficiency of deproteinization of fungal biomass was based on the enzyme concentration and contact time. Protease at a concentration of 20 U/100 mg of dry biomass and with a contact time of 8 h achieved 30% final deproteinization. No effect on saccharification of A. niger biomass was observed by treatment with purified amylolytic enzymes. Meanwhile, the endo- and exo-chitosanases treatment yielded 54 g of g reducing sugars (equivalent to amino sugars)/ kg of fungal biomass, which can be employed for tailor-made carbohydrate production.
Guardo, Laura Alonso,Gala, Carlos Cano,Poveda, David Sanchez,Juan, Pablo Rueda,Sanchez Montero, Francisco Jose,Garzon Sanchez, Jose Carlos,Lamas, Juan Ignacio Santos,Sanchez Hernandez, Miguel Vicente The Korean Pain Society 2016 The Korean Journal of Pain Vol.29 No.1
Background: Sacral nerve stimulation is a therapeutic option with demonstrated efficacy for conditions presenting with perineal pain caused by different etiologies. We aimed to assess whether a sacral electrode ($Interstim^{(R)}$, Medtronic, Minneapolis, MN, USA) inserted through the caudal pathway is able to offer an acceptable level of sacral stimulation and rate of catheter migration. Methods: We present 12 patients with pelvic pain who received sacral neuromodulation via the sacral hiatus with the InterStim electrode. We evaluated patient satisfaction as well as migration and removal of the electrode, if necessary. Results: Our experience included 12 patients, 10 women and two men, with a mean age of 60 years. In eight of the 12 patients, the initial therapy was effective, and the final system implantation was performed. During subsequent follow-up, patient satisfaction was good. To date, there have been no cases of electrode displacement or migration. Conclusions: The caudal insertion of the InterStim electrode, with its own fixation system, and initially designed for transsacral insertion, appears in our experience to be a satisfactory option which can minimize electrode displacements, achieving similar results in therapeutic efficacy and causing no difficulties in removal.
UbiqBIOPARC: A Wireless and Sensor Based Context-Aware System for an Enhanced Guide Experience
Sorribes, Jose-Vicente,Cano, Juan-Carlos,Calafate, Carlos T.,Manzoni, Pietro Korea Multimedia Society 2014 The journal of multimedia information system Vol.1 No.1
This work discusses and evaluates the use of wireless and multi-sensor based technologies to develop UbiqBIOPARC, a new generation zoological park that has been created based on the zoo-immersion concept. It offers appropriate contextual information to zoo visitors, depending on their preferences and the environment in which they are positioned. It combines the flexibility of the iPhone SDK, the connectivity provided by 3G technologies, the location capabilities of GPS, and the orientation offered by a digital compass integrated in the device. In this document the overall architecture and the implementation steps followed to create this context-aware application are presented. We compare our system with respect to previous ones and demonstrate that UbiqBIOPARC is an example of how innovative context-aware applications can be built with the aid of GPS and compass features. Several real experiments have been carried out in order to evaluate performance and system behavior, and numerical results demonstrate the practicality offered by our application, while providing a quite reasonable performance in terms of delay, usability, and energy efficiency.
DrivingStyles: A Mobile Platform for Driving Styles and Fuel Consumption Characterization
Javier E. Meseguer,Chai Keong Toh,Carlos T. Calafate,Juan-Carlos Cano,Pietro Manzoni 한국통신학회 2017 Journal of communications and networks Vol.19 No.2
Intelligent transportation systems (ITS) rely on connectedvehicle applications to address real-world problems. Researchis currently being conducted to support safety, mobility andenvironmental applications. This paper presents the DrivingStylesarchitecture, which adopts data mining techniques and neural networksto analyze and generate a classification of driving styles andfuel consumption based on driver characterization. In particular,we have implemented an algorithm that is able to characterize thedegree of aggressiveness of each driver. We have also developed amethodology to calculate, in real-time, the consumption and environmentalimpact of spark ignition and diesel vehicles from a set ofvariables obtained from the vehicle’s electronic control unit (ECU). In this paper, we demonstrate the impact of the driving style onfuel consumption, as well as its correlation with the greenhouse gasemissions generated by each vehicle. Overall, our platform is ableto assist drivers in correcting their bad driving habits, while offeringhelpful tips to improve fuel economy and driving safety.
RCDP: Raptor-Based Content Delivery Protocol for Unicast Communication in Wireless Networks for ITS
Baguena, Miguel,Toh, C.K.,Calafate, Carlos T.,Cano, Juan-Carlos,Manzoni, Pietro The Korea Institute of Information and Commucation 2013 Journal of communications and networks Vol.15 No.2
Recent advances in forward error correction (FEC) coding techniques were focused on addressing the challenges of multicast and broadcast delivery. However, FEC approaches can also be used for unicast content delivery in order to solve transmission control protocol issues found in wireless networks. In this paper, we exploit the error resilient properties of Raptor codes by proposing Raptor-based content delivery protocol (RCDP) - a novel solution for reliable and bidirectional unicast communication in lossy links that can improve content delivery in situations where the wireless network is the bottleneck. RCDP has been designed, validated, optimized, and its performance has been analyzed in terms of throughput and resource efficiency. Experimental results show that RCDP is a highly efficient solution for environments characterized by high delays and packet losses making it very suitable for intelligent transport system oriented applications since it achieves significant performance improvements when compared to traditional transport layer protocols.