Remote monitoring of the person physiological state Shevchuk, Bohdan; Geraimchuk, Mykhaylo; Ivakhiv, Orest ...
2017 9th IEEE International Conference on Intelligent Data Acquisition and Advanced Computing Systems: Technology and Applications (IDAACS),
2017-Sept., Letnik:
2
Conference Proceeding
For reliable control of the cardiovascular, respiratory, musculoskeletal systems of the human body must be continuously recorded electro-cardio signal for a long time. Detected and quickly ...transferred over the wireless channel the most informative pieces of daily electro-cardio signal will allow duty cardiologists for react and provide the necessary medical care to remote cardiac patients. The sequences of the normal electro-cardio signal and the emergence of certain beat kinds subsequent following normal systems is the most informative time intervals as subject to operative compression and transmission to the remote database. For monitoring data, precise restoration should be used electro-cardio signal compression modes without their prior filtration. The proposed processing, encoding, encryption and transmission technology of the monitoring data is focused on the wireless sensor network operating system creating that is widely used in telemedicine, sports medicine, to monitor operators.
The aim of this paper is to present a review of currently applied 3D localization methods on Earth or near Earth orbit. The article provides an accurate specification and functionality presentation ...of those methods as well as a general analysis of their further development prospects. The priority of this article is to propose a method that is based on utilizing spectral characteristics of the given pulsars to specify their distinctive features and to create an appropriate pattern which would identify a particular pulsar. Numerical maps of pulsars detected in the universe will enable a correlation of range of identified patterns with an area where the measurement has been previously conducted. There are numerous potential benefits from implementing this technology. A navigation and/or timing system utilizing pulsars would be available anytime when cosmic radio sources can be observed, from low Earth orbits to interplanetary trajectories and planetary orbits. X-ray emissions are completely absorbed by the Earth's atmosphere and therefore the use of that wavelength is limited to space or planetary bodies without an atmosphere. Despite being aware of many limitations connected with the suggested method, such as a need to develop appropriate low-noise detectors, the applicative implementation of the method and its further use may become a good alternative to build a useful location platform and constitute one of the ways of conducting navigation during space research.
INS errors present one of the major problems in development of navigation systems for aerial vehicles. This problem is especially actual for Mini and Micro UAVs where INS is based on MEMS which ...possesses high spectral density noise and instability. Another problem for Micro UAVs is restrictions applied for onboard hardware. Autopilots designed for this UAVs utilizes microcontrollers for CPU, which executes functions of flight control, navigation system, payload control and etc. So one needs simple and reliable algorithm for errors compensation in this particular types of autopilots. Existing algorithms, such as Complementary Filters or Kalman Filter, already are used in INS and performs very well. But there is always a way for improvements. Such improvement is a Luenberger Observer. It can estimate navigation and sensors errors. This algorithm is simpler, thus faster, than Kalman Filter. In this paper implementation of Luenberger Observer in Attitude and Heading Reference System (AHRS) (specific type of INS) is considered. The simulation of algorithm performance using real onboard data and feasibility of its implementation in navigation systems is shown.
Constipation is not a sign but a symptom, which is not measurable scientifically. It has emotional components and must be dealt with in a holistic manner. The scientific approach aims only at the ...physiological derangement and serves to place the complaint in a more objective perspective. An algorithm can be constructed to select treatment including surgery, but there is no gold standard at present because the natural history of the symptoms is unknown. Most physicians confuse normality with epidemiology, neglecting in the process the evolution of mankind in terms of behavior. Constipation now means less than five stools per week, while it used to mean three. Thus, all complaints should be addressed. As for surgery, it should be performed in few, high select patients with no dysfunction other than that in the colon and in conjunction with a fully normal thorough psychological evaluation.
Zusammenfassung
Es wird über den Fall einer seltenen Kombinationsverletzung einer C3-Beckenfraktur (Malgaigne-Verletzung) mit gleichzeitiger instabiler traumatischer Spondylolisthesis lumbosakral, ...Zerreißung des Duralschlauchs und ausgeprägter neurologischer Ausfallssymptomatik der unteren Extremitäten berichtet. Die gewählte innerklinische primäre und sekundäre chirurgische Behandlungsstrategie des polytraumatisierten Patienten sowie der Verlauf werden beschrieben und, anlehnend an die spärlich vorhandene Literatur, kritisch diskutiert.
La technologie de fabrication additive métal fil permet la fabrication de structures filaires complexes en 3 dimensions. Ce système se base sur l'utilisation d'un procédé de soudage qui va permettre ...le dépôt de la matière. Ce dernier est embarqué sur un bras robotique qui permettra de déplacer la torche de soudage aux positions désirées. Pour fabriquer de grandes structures filaires, le dépôt s'effectue point par point. L'utilisation d'un procédé de soudage induit des fluctuations sur le dépôt. Pour être adaptable facilement, deux aspects doivent être pris en compte. Premièrement, une instrumentation doit être embarquée. Un contrôle local sur la géométrie déposée doit être utilisé pour atteindre les formes finales désirées. Deuxièmement, certaines stratégies de dépôt doivent êtres implémentées pour piloter notre système dans les intersections de branches. Pour atteindre ces deux objectifs, un slicer adaptatif et modulaire, ainsi qu'un système de supervision et de contrôle du système ont été développés pour permettre l'implémentation du contrôle. Cela permet, si une erreur apparait, de changer la position de notre système de dépôt. Pour obtenir la géométrie désirée, notre système de supervision et de contrôle doit pouvoir : (i) effectuer un slicing de la géométrie à la volée lors de la fabrication avec un pas variable pour pouvoir prendre en compte les variations du procédé de dépôt et (ii) gérer les stratégies de dépôt au niveau des intersections pour décider des paramètres procédés et des trajectoires à employer.
Wire Arc Additive Manufacturing (WAAM) has the possibility to build metallic structures in 3D space. WAAM system is based on welding process to deposit metallic material and on a robot that moves the welding torch to add material at a given position. For large skeleton structures, it was chosen to deposit material point by point. Welding process induces fluctuations.To be fully scalable, two main features must be taken into account. First, monitoring of the process is necessary. Local control on the geometry of the deposition must be used to reach the final shape. Secondly, some deposition strategies must be implemented to manage branch intersections. To reach these two objectives, anadaptive and modular slicer and a process manager have been developed in order to implement this control. It allows us, if an error occurs during the deposition, to change the position of the effector or the process parameters. To obtain the desired geometry, the CAM software have to be able to, (i) do a slicing during the additive process of the part with a variable deposit height in order to take into account variation of the deposition process and (ii) manage the deposition strategy at intersection to output the position of the torch.
So you think you want to buy a computer? Bushman, J A
International journal of clinical monitoring and computing,
01/1987, Letnik:
4, Številka:
2
Journal Article
On s'intéresse dans cette thèse à la détermination du rang de tenseur de la multiplication dans $mathbb{F}_{q^n}$, l'extension de degré $n$ du corps fini $mathbb{F}_q$ ; ce rang de tenseur correspond ...en particulier à la complexité bilinéaire de la multiplication dans $mathbb{F}_{q^n}$ sur $mathbb{F}_q$. Dans cette optique, on présente les différentes évolutions de l'algorithme de type évaluation-interpolation introduit en 1987 par D.V. et G.V. Chudnovsky et qui a permis d'établir que le rang de tenseur de la multiplication dans $mathbb{F}_{q^n}$ était linéaire en~$n$. Cet algorithme en fournit désormais les meilleures bornes connues dans le cas d'extensions de degré grand relativement au cardinal du corps de base — le cas des petites extensions étant bien connu. Afin d'obtenir des bornes uniformes en le degré de l'extension, il est nécessaire, pour chaque $n$, de déterminer un corps de fonctions algébriques qui convienne pour appliquer l'algorithme pour $mathbb{F}_{q^n}$, c'est-à-dire qui ait suffisamment de places de petit degré relativement à son genre $g$ et pour lequel on puisse établir l'existence de diviseurs ayant certaines propriétés, notamment des diviseurs non-spéciaux de degré ${g-1}$ ou de dimension nulle et de degré aussi près de ${g-1}$ que possible ; c'est pourquoi les tours de corps de fonctions sont d'un intérêt considérable. En particulier, on s'intéresse ici à l'étude des tours de Garcia-Stichtenoth d'extensions d'Artin-Schreier et de Kummer qui atteignent la borne de Drinfeld-Vlu{a}duc{t}.
In this thesis, we focus on the determination of the tensor rank of multiplication in $mathbb{F}_{q^n}$, the degree $n$ extension of the finite field $mathbb{F}_q$, which corresponds to the bilinear complexity of multiplication in $mathbb{F}_{q^n}$ over $mathbb{F}_q$. To this end, we describe the various successive improvements to the evaluation-interpolation algorithm introduced in 1987 by D.V. and G.V. Chudnovsky which shows the linearity of the tensor rank of multiplication in $mathbb{F}_{q^n}$ with respect to $n$. This algorithm gives the best known bounds for large degree extensions relative to the cardinality of the base field (the case when the degree of the extension is small is well known). In order to obtain uniform bounds, we need to determine, for each $n$, a suitable algebraic function field for the algorithm on $mathbb{F}_{q^n}$, namely a function field with sufficiently many places of small degree relative to its genus $g$ and for which we can prove the existence of divisors with some good properties such as non-special divisors of degree ${g-1}$ or zero-dimensional divisors with degree as close to ${g-1}$ as possiblestring; these conditions lead us to consider towers of algebraic function fields. In particular, we are interested in the study of Garcia-Stichtenoth towers of Artin-Schreier and Kummer extensions which attain the Drinfeld-Vlu{a}duc{t} bound.
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