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    Wyświetlanie 1-3 z 3
    Tytuł:
    Extensible, fast and secure scala expression evaluation engine
    Autorzy:
    Janik, A.
    Janusz, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/385003.pdf
    Data publikacji:
    2017
    Wydawca:
    Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów
    Tematy:
    expression evaluation engine
    Scala
    Opis:
    Scripting and expression evaluation engines are popular tools in the Java software ecosystem which is understood as any environment using Java Virtual Machine (JVM) to execute code (which does not have to be generated from Java language). With the current, wide-spread popularity of Java and Java byte code compliant languages it means that both: traditional, stand-alone Java programs as well as enterprise systems run on application servers or even systems deployed in microservices architecture can be considered. Expression evaluation engines are often used for purposes like defining document templates, enhancing various static configuration formats with dynamically evaluated snippets or defining data binding for user interfaces. However, most of these solutions employ dynamically typed languages and suffer from limited performance and lack of any concern for security. This effectively makes it impossible to use expression language as a feature exposed to end users. This paper presents a new approach to implementing an expression engine. It uses Scala as the expression language and leverages its static type system as well as its rich feature set to create an expression evaluation engine with expressive and concise language, high evaluation performance and fine grained security control. In the paper we present use case built for the domain of telecommunication networks. In large telecommunication networks one can find hundreds of devices for which configuration has to be updated either periodically or on-demand when a given event occurs. Contents of configuration files may have to be generated dynamically (based on some data associated with a given device). On top of that, since communicatinon networks are heterogeneous environments with hardware delivered by different providers, exact form of each config file may vary depending on a type of a device and its manufacturer. Moreover, as structure and size of telecommunication networks evolve as new devices are added, there is a need to dynamically and remotely support completely new types of devices with a completely new format of configuration. This paper presents how the problem can be solved by using configuration file templates with placeholders that would be filled by some data associated with a given device. Each template is an expression that evaluates to exact configuration file. Performance is crucial (due to size of network) and so is security: the solution should allow to control what kind of configuration and by whom may be applied to devices while still allowing network operators to use a Graphical User Interface to define (or redefine) configuration file templates.
    Źródło:
    Journal of Automation Mobile Robotics and Intelligent Systems; 2017, 11, 3; 30-44
    1897-8649
    2080-2145
    Pojawia się w:
    Journal of Automation Mobile Robotics and Intelligent Systems
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Evaluation of the implant electrode inside the cochlea and damage to cochlear structures associated with implantation using cone beam computed tomography techniques (CBCT)
    Autorzy:
    Orłowski, Adam
    Lachowska, Magdalena
    Wiśniewska, Ewa
    Niemczyk, Grzegorz
    Koszel-Orłowska, Alicja
    Szopiński, Kazimierz
    Niemczyk, Kazimierz
    Powiązania:
    https://bibliotekanauki.pl/articles/1401755.pdf
    Data publikacji:
    2016
    Wydawca:
    Index Copernicus International
    Tematy:
    cochlear implant
    earing loss
    scala vestibuli
    cochleostomy
    temporal bone
    Opis:
    Objectives: The aim was to evaluate the position of the cochlear implant electrode inside the cochlea and damage to cochlear structures associated with the implantation itself using cone beam computed tomography technique (CBCT). Material and methods: Nine human cadaver temporal bones were used, five were implanted with round window approach and in other four anterior cochleostomy was used for insertion. After implantation the temporal boneswere scanned with CBCT scanner and the images were then analyzed. The degree of insertion damage was evaluated in two-tier scale, where the first degree included damage to basilar membrane, and the second degree covered damage associated with pushing up into the scala vestibuli. Results: The first degree of cochlear damage was noted in three temporal bones implanted with the round window approach and in two with cochleostomy, and the second degree of damage was noted in two and one temporal bones respectively. The analysis did not show any correlations between depth of insertion and degree and extend of damage in both analyzed groups, also no significant differences were found between the two groups. Conclusions: The good quality of the images presents CBCT as a good method for the evaluation of the cochlear implant electrode position in the inner ear structures. CBCT holds the promise for intraoperative imagining during cochlear implantation.
    Źródło:
    Polski Przegląd Otorynolaryngologiczny; 2016, 5, 1; 1-10
    2084-5308
    2300-7338
    Pojawia się w:
    Polski Przegląd Otorynolaryngologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The paschein and pathê of the Earth and Living Beings in Aristotle and Alexander of Aphrodisias (Meteorologica 1.14)
    Autorzy:
    Militello, Chiara
    Powiązania:
    https://bibliotekanauki.pl/articles/28408730.pdf
    Data publikacji:
    2023
    Wydawca:
    Uniwersytet im. Adama Mickiewicza w Poznaniu
    Tematy:
    Pathos
    scala naturae
    Aristotle
    Alexander of Aphrodisias
    climate
    change
    great winter
    Opis:
    In his 2013 monograph on Structure and Method in Aristotle’s Meteorologica, Malcolm Wilson has shown both that Aristotle conceived of meteorological phenomena as analogous to the bodily processes of animals, and that for the Stagirite the sublunar world should not be seen as a single body, but rather as composed of many different individuals. However, Wilson did not articulate the relationship between these two theories—that is, he did not answer the following question: how is it possible for the Earth to behave like an animal if it is not a single body? This paper argues that the answer to this question lies in the Aristotelian statement about the different paschein of the Earth and animals. In fact, in the chapter of Meteorology dedicated to climatic changes (1.14), Aristotle, after comparing such changes to the maturing and ageing of living organisms, states that ‘only, in the case of the bodies of plants and animals being affected does not occur in each part separately, but it is necessary for the being to mature and decay all at once, whereas in the case of the Earth this occurs in each part separately, due to cooling and warming’ (351a.28-31). In his commentary, Alexander of Aphrodisias reiterates that the difference between the changes of the Earth and those of living organisms concern the way in which these different subjects undergo affections (pathê). The concept of paschein/pathos is thus fundamental to understanding how Aristotle conceives of biological analogies, which play a key role in his meteorology: as the affections of maturing and corruption show, parallels with organic processes can be found in meteorological phenomena, but always at the level of the individual parts of the Earth. Although the sublunary world can be understood in organic terms, this world is not a ‘cosmic animal’, but rather a multiplicity of ‘regional animals’. To corroborate this thesis, this paper addresses several related questions,  including: the mechanics ofenvironmental changes according to Aristotle; the differences between the regions of the Earth; the lexicon used in Meteorology to refer to the transformations of the Earth; the personal notes that Alexander adds to Aristotle’s discussion. Finally, the first modern translation of the relevant section of Alexander’s commentary is also provided here.
    Źródło:
    Peitho. Examina Antiqua; 2023, 14, 1; 69-84
    2082-7539
    Pojawia się w:
    Peitho. Examina Antiqua
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-3 z 3

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