karakasis chrysostomos
235678434
F VESPA: A Kinematic based Algorithm for Real time Heel strike Detection During Walking
With over 10 million people currently suffering from significant long term gait disability in the United States only, assistive and prosthetic robotic devices are increasingly gaining attention as a mean to regain functional mobility. Since these devices work collaborative and synchronously with the human gait, it is necessary to be able to detect gait events, such as heel strikes, in real time. Although many algorithms have been proposed for detecting heel strikes with either wearable (e.g. Inertial Measurement Units (IMUs) or nonwearable (e.g. force plates) sensors, there is a great need for employing less obtrusive and reliable sensors that rely only on recording the kinematics of the leg motion. This work proposes a novel and efficient kinematic algorithm, called the Foot VErtical Sagittal Position Algorithm (F VESPA) which has several advantages over existing methods. First, it accurately estimates heel strike events using kinematic data without requiring access to future data points, rendering it the first to our knowledge kinematic algorithm capable of realtime implementation. Moreover, it does not require tuning of the utilized parameters, rendering it robust to different subjects, conditions and equipment. The algorithm is tested in a large set of subjects across various treadmill speeds, and it is shown to outperform online and offline implementations of existing prominent kinematic algorithms. The F VESPA is the first to our knowledge kinematic algorithm that can detect heel strike events in real time, with high accuracy, robustness and fast response, enabling real time control of a variety of assistive and prosthetic devices, among others.
Chrysostomos Karakasis Panagiotis K Artemiadis
221132307
Exploiting the SoC FPGA Capabilities in the Control Architecture of a Quadruped Robot
The use of FPGAs in the field of robotics has the potential to create interesting results considering the former's assets and the latter's necessities. Motion control is highly demanding both in resources and data, while the number of sensors employed in robotic devices can be large. On the other hand, FPGAs have gained a renowned place in the field of digital circuit implementation media. Simultaneously, the vast number of peripherals they are equipped with, renders them as ideal for the management of multiple external signals. In this paper, a highly affordable control architecture has been implemented for the quadruped robot Laelaps II based on a SoC FPGA, in order to examine the use of FPGAs in demanding robotic applications. The proposed system has realtime characteristics and is capable of controlling more than eight actuators at very high frequencies, outperforming most motion control platforms existing in the market, while keeping the total cost low. To achieve this, signals from all the robots peripherals are handled in parallel by the FPGA at a very high frequency, leaving the embedded ARM processor free to allocate all its resources to motion control and user interfacing tasks. The whole hardware/ software architecture is analyzed and evaluated compared with state of the art approaches, while a trotting experiment with the Laelaps II motion system is presented for validation purposes.
2020 IEEE/ASME International Conference on Advanced Intelligent Mechatronics (AIM)
Chrysostomos Karakasis Konstantinos Machairas Charalampos Marantos Iosif S Paraskevas Evangelos Papadopoulos Dimitrios Soudris
182355067
Implementation of Quadruped Robot's Motion Control on SoC FPGA
Khrusostomos Karakases Chrysostomos Karakasis
39849375
Sagittal fracture of the maxilla.
Although sagittal fractures of the maxilla are not common, they can be observed in some cases following severe trauma to the facial skeleton. 18 of the 23 cases reported had combined mandibular and midfacial fractures. Sometimes in severe cases they may demonstrate instability with conventional methods of treatment; thus for adequate stabilization they may need a palatal splint, direct wiring (internal fixation in the buttresses) intermaxillary fixation and cranial suspension.
Journal of cranio maxillo facial surgery official publication of the European Association for Cranio Maxillo Facial Surgery
Konstantinos Antoniades Chrysostomos Dimitriou C Triaridis Irene Karabouta N Layaridis Dimitris Karakasis
39339204
[Extraoral odontogenic fistulas: a classification and a differential diagnosis from other type head and neck fistulas]
The majority of extraoral facial fistulas are of odontogenic origin. Although the differential diagnosis of draining lesions should include various types of skin infection, infected tumour, specific infections, failed wound healing, foreign body, salivary gland fistula, sebaceous cysts and developmental cysts and fistulas. This report documents a group of patients with extraoral draining skin lesions and illustrates that their diagnosis is very important because clinically they can resemble many pathologic entities. One hundred and twenty eight cases of extraoral fistulas are presented in this paper. This study aims to analyse a number of fistula cases so as to give a clear idea about relative frequency of etiology and to attract to some cases of non odontogenic etiology.
Hellenika stomatologika chronika. Hellenic stomatological annals
K Antoniadis C Triaridis Chrysostomos Dimitriou A Kommata Dimitris Karakasis
226765258
CULTURE FORMATIVE POTENTIAL OF THE ORTHODOX ANTHROPOLOGY OF THE CONTEMPORARY GREEK THEOLOGIAN CHRYSOSTOMOS STAMOULIS
The study aims to determine the latest understanding of the place and role of culture in Christian anthropology. The author proceeds from the lack of translation of the works of Chrysostomos Stamulis and the absence among Ukrainian religious scholars and theologians of ideas about the range of transformations of the fundamental ideas of Orthodox theology in modern Greek theological thought. Scientific novelty lies in defining the place and role of culture within the transformations of contemporary Greek Orthodox anthropology. The newest approach to understanding of culture as an expression of the divine in man provides the Orthodox anthropology with new vectors of development. The study indicates that the Orthodoxy continues to play significant role in formation of the Greek nation. Within this context, the dialogue with culture initiated by Chrysostomos Stamulis becomes an important factor of this formation and search for identity. Culture, in all forms of its expression, appears not only as a form of spiritual secular being, but also as the deep essence of man, one of the aspects of the image and the likeness to the God, that encourages man to go beyond the boundaries of everyday routine, and with the ability to admire Beauty, to reach the state of Love. The theologian is trying to demonstrate that presence of Christ in man cannot be measured only by man's presence at the liturgy or involvement in the life of the church, but that extent of man's freedom is also an important factor. Man is not an angel whose mission is solely to perform the will of the God. Man is the image and the likeness of the God, man is graced with mind, freedom, creativity and love. With them, man is the creator of our world, through culture, art and science, as well as through multiple social and personal relationships. Chrysostomos Stamulis unveils significant culture formative potential of the Orthodox anthropology, in which is formed the kind of man who is able to see good, beauty, love of the world created by the God, and through herself she affirms them in the outside world boldly starting a dialogue with it. And both culture and art play important role in this dialogue.
Tetjana Ghavryljuk
216743172
The Sculptor and His Stone. Selected Readings on Hellenistic and Christian Learning and Thought in the Early Greek Fathers, hg. v. Archbishop Chrysostomos
The Sculptor and His Stone. Selected Readings on Hellenistic and Christian Learning and Thought in the Early Greek Fathers, hg. v. Archbishop Chrysostomos
Cyril Hovorun
160775495
DION CHRYSOSTOMOS ALS HOMERKRITIKER (OR. 11)
konnte, in der er Homer fortwahrend der Luge bezichtigt, ist nicht weiter erstaunlich. Was Homer von den Gottern erzahlte, glaubte er als Philosoph ohnehin nicht; als Literat kannte er poetische Korrekturen am Mythos wie die Helena Palinodie des Stesichoros; als Rhetor schlieslich hatte er wahrend seiner Ausbildung Schulubungen kennengelernt und wahrscheinlich selbst praktiziert, bei denen der Schuler eine paradoxe These vertreten muste. Wir wissen nicht, welche Absicht Dion mit seiner 11. Rede verfolgte. Ist sie nur eine rhetorische Spielerei, um seine Kunstfertigkeit zu demonstrieren2) Wollte er das historische Selbstbewustsein der Einwohner von Neu Ilion oder des nordwestlichen Kleinasiens, wo ja auch seine Heimat Prusa lag, starken? Wollte er die Nachfahren der Troer, die nun die Welt beherrschten, noch nachtraglich zum Sieger im Trojanischen Krieg machen3) Oder wird er hier wirklich zum Historiker, der, wie er behauptet (1 1) nur der Wahrheit dienen will? Wie dem auch sei, bemerkenswert an dieser Rede sind vor allem Art und Eindringlichkeit der Auseinandersetzung mit der Mas. Um in welcher Absicht auch immer eine paradoxe oder historische These zu begrunden, erscheint der Aufwand allzu eros. Es sieht eher so aus, als ob fur Dion die Beschaftigung mit der Mas zum Selbstzweck geworden ist und er seinem philologisch literarischen Interesse freien Lauf last. Den Anstos
D Stylios Chrysostomos Als Homerkritiker Gustav Adolf Seeck
184319523
Deichsel und die Sprache: Der unselige Chrysostomos oder:Von den Schwierigkeiten des Goldenen Mundwerks
Nicht in den Bauch, sondern ins Portemonnaie soll er also Locher reden, der Verkaufer mit dem Goldenen Mundwerk, schon bei den Griechen als Chrysostomos eine durchaus bekannte Figur unter den Gottern und ihren Helfern. Der griechische Berufs Redner Dio erhielt spater diesen Zunamen, als er sich im ersten nachchristlichen Jahrhundert durch das Romische Reich redete. Aber auch der spatere Patriarch von Byzanz, Johannes, wurde so genannt wegen hinreisender Beredsamkeit. Heute gibt es ihn millionenfach, den angestellten Goldmund, mannlich und weiblich, graumeliert und poppig keck, serios sachlich und schlitzohrig sprungbereit die Gegenstande in unserer Wohnung verdanken wir auch ihm und seiner Arbeit, dem Verkaufen.
Jean Marie Zemb
160998617
Dion Chrysostomos Peri Basileias I
Ksiazka z serii Rhetores Graeci wydawana dwujezycznie (tekst grecki i polski) ma na celu zapoznanie odbiorcy z tekstami zrodlowymi z zakresu retoryki greckiej. Serie w oczekiwaniach autora, otworzy Dion z Prusy omprzydomku Zlotousty, Chrysostomos, mowca, filozof, pisarz moralista dzialacz spoleczny i pisarz polityczny z przelomu I i II wieku naszej ery. Dion nalezal do pisarzy tworzacych w okresie Drugiej Sofistyki, pisal cenionym wowczasdialektem attyckim. Mowy poruszaja wiele problemow z zakresu etyki starozytnej, estetyki, religii, a takze polityki i zagadnien spolecznych.Sa nieocenionym zrodlem dla poznania filozofii cynickiej i stoickiej, na ktore powoluja sie historycy filozofii. Mowy takze daja wglad w sprawy spoleczne i polityczne Cesarstwa I i II wieku naszej ery.
Krystyna Tuszynska