75 research outputs found
Estimation of transaction costs during tax collection process
No full textTigran Jrbashyan; Davit Harutyunya
Rescue craft davit performance on an FPSO in heavy sea states & davit design proposal
No full textThe aim of this research is to increase the workability of a rescue craft launch and retrieval system on FPSOs in heavy sea states. Although a rescue craft’s purpose is to improve safety, multiple incidents recorded in the GISIS database have proven that the launch and recovery operation can be dangerous or even deadly. The problem research shows that the davit system is the main cause for incidents, which are related to design flaws, lack of maintenance and human errors, the three parameters for a successful launch. The opinion of the author is that a different type of launch and recovery system can lead to improvement of these three parameters and to an increased workability of the system. To compare a new design with the conventional design, a computational model of both designs is built in Matlab to simulate the launch of a rescue craft from an FPSO in various sea states. The conventional model shows dangerous accelerations in high sea states and the risk to collide with the hull of the FPSO. The concept design aims to reduce these motions and, in addition, provide a more redundant design with easy maintenance and focused on reducing human errors. After comparison, the concept design proves to reduce dangerous motions during launch and increase the workability in high sea states, while being very simplistic, robust and easy to operate. However, in the splash zone the concept model does not mitigate dangerous motions sufficiently. To further substantiate this conclusion, it is advised to further investigate the splash zone model and to develop a more detailed model of the concept design
MAIN CHARACTERISTIC OF DAVIT GURAMISHVILI MINDSET IN WORLDLITERATURE AND INTERCULTURAL CONTEXT
No full textDavit Guramishvili heritage and his mindset demands its discussion
in the context of interculturalism. At the same time, we have to
consider the attitude with the traditional cultural heritages and at
the other hand with the Christian literary heritage and tradition for
the reasonthat it is based on the roots of middle age Georgian literary
in horizontal and vertical view, also on the symbols and use its
fictional examples. It has link with the paradigm structure of Biblical
world. In the late middle ages after the renaissance, it was linked with the processes developed according cultural direction, literary
directions. All of this took place and were based on the Cristian religion.
We have to pay attention to the special connection with the
folklore in Davit Guramihvili’s poetry. Author to emphasize his emotions
uses folk tradition. It is the most important aspect to his poetry
that he was very close not only to the Georgian folk materials but
also was using Ukrainian materials. He was using the mindset system
from folklore motifs and formal variation. It is not unusual to find
the pastoral symbols for the reason that the author developed such
a lyrical poetry on the based of folklore and the Bible. Those symbols
were used in “Happy Summer” well known with another name
“Thorny Shepherd”. Mindset system of Davit Guramishvili contains
paradigms form the epoch. What about the renaissance, Davit Guramishvili’s
heritage has renaissance feeling only on the base of religion
and it is connected to the spiritual raising theory. In his poetry
we equally met old and new epoch.
Research history is very rich and especially in context of the Bible,
but still the main aspects remain as gap and needs consideration.
In parallel of literary design he was free and dedicated author
to the own ideas, spiritual and intellectual possibilitiesand fictional
fantasy and with his poetic experience was making special system
of mindset. In our research work we make the base of intercultural
and allegoric understading of Davit Guramishvili’s heritage interpretation
One Pastoral Poem of Davit Guramishvili
No full text“The Book Cheerful Summer” of Georgian Writer, which is created by the pastoral theme of Davit Guramishvili, which echoes The Russian Folklore. The poem is a small genre and carries bucolic-pastoral characteristics. The author of the poem echoes the revival period of European-Russian pastoral theme, in addition, he has a moral character – who is the shepherd boy- Katsvia, who is grown up with Christian values, denying the familiar and eccentric relationships. In The poem there are conflicts between two worlds - carnival Life and traditional values. The first of them is the shepherd girl, the second one is the shepherd boy – Katsvia. This poem is considered as a writer's testament is a didactic and moral. At the same time, the author refuses in his dominant epoch on “the three styles theory” and the folk, where he appeals the simple narrate, the verification is original, the narrate is interesting and it is featured by the lightness of folklore and feminine expressions
Epoch Reality in Davit Turdospireli's Brief Fictional Narrative
No full text Despite the strict canonical description for brief prose, Davit Turdospireli\u27s brief fictional narrative not only give us a glimpse into the spiritual world of the writer and share his subjective feelings, but also clearly present a number of contemporary epochal problems of the writer. Davit Turdospireli was involved in active social and political life from an early age, while still studying at the seminary, he edited the literary and journalistic magazine "Our flag" and the almanac "Pirveli Talva". Gendarmerie carefully followed the socio-political steps of the young writer. Davit Turdospireli\u27s miniature prose echoes in many ways the historical-political and cultural-social existence of Georgians at the beginning of the twentieth century. The historical and political events in the country pushed the writer to different ways of disguising what he had to say. In some cases, he tried to show the way to salvation for the country that had been disenfranchised, and in some cases, he created works with almost the same title and completely different content. The reason for the distress revealed in the miniature by covering it with "withered leaves" is undoubtedly caused by the contemporary presence of the writer. In the miniature dated 1916, "Love", seemingly a searcher of the philosophy of love, who has not heard anything about its annals since the beginning of the world, calls the reader to enjoy the charm of freedom and selfless struggle to break the shackles of slavery. The work on Davit Turdospireli\u27s autographs has revealed a number of nuances characteristic of the writer\u27s creative process. What is especially characteristic of his manuscripts, which are mostly black autographs and clearly show the writer\u27s creative work process, are signed and undated by the author. We think that the writer deliberately did not date his manuscripts. As we have already mentioned, despite the fact that he tried to convey his message to the readers by various means, the undated manuscripts was probably one of the ways to protect free thought. Davit Turdospireli\u27s miniatures, despite the persecution and harassment of free thought, interestingly reveal writer’s attitude to the historical and political existence of the country, at the same time, they also draw crystal paths for a better life of the country.დავით თურდოსპირელის მინიატურები, მიუხედავად მცირე პროზისთვის დამახასითებელი მკაცრი კანონიკისა, არა მხოლოდ მწერლის სულიერ სამყაროში გვახედებს და მისი სუბიექტური განცდების თანაზიარს გვხდის, არამედ მთელი რიგი სიცხადით წარმოაჩენს მწერლის თანადროულ ეპოქალურ პრობლემებს. დავით თურდოსპირელი ადრეული ასაკიდან ჩაერთო აქტიურ საზოგადოებრივ-პოლიტიკურ ცხოვრებაში, ჯერ კიდევ სემინარიაში სწავლის პერიოდში რედაქტორობდა ლიტერატურულ-პუბლიცისტურ ჟურნალს „ჩვენი დროშა“ და ალმანახს „პირველი ტალღა“. ჟანდარმერია ყურადღებით ადევნებდა თვალყურს ახალგაზრდა მწერლის საზოგადოებრივ-პოლიტიკურ ნაბიჯებს. დავით თურდოსპირელის მინიატურული პროზა მრავალმხრივ ეხმიანება მეოცე საუკუნის დასაწყისის ქართველთა ისტორიულ-პოლიტიკურ თუ კულტურულ-საზოგადოებრივ ყოფას. მწერალს ქვეყანაში განვითარებულმა ისტორიულ-პოლიტიკურმა მოვლენებმა სათქმელის შენიღბვის სხვადასხვა გზისკენ უბიძგა. რიგ შემთხვევაში თუ შეფარვით ცდილობდა უფლებააყრილი ქვეყნისთვის გზა ხსნისა ეჩვენებინა, რიგ შემთხვევაში კი თითქმის ერთი და იმავე სათაურით აბსოლუტურად განსხვავებული შინაარსის ნაწარმოებებს ქმნიდა. მინიატურაში „მჭკნარის ფოთლებთან“ შეფარვით განმჟღავნებული ურვის მიზეზი უთუოდ მწერლის თანადროული ყოფითაა გამოწვეული.1916 წლით დათარიღებულ მინიატურაში „სიყვარული“ ერთ შეხედვით სიყვარულის ფილოსოფიის მაძიებელი, ქვეყნიერების დასაბამიდან დღემდე მისი მატიანისა რომ ვერაფერი გაუგია რა, თავისუფლების ხიბლით ტკობისა და მონობის ბორკილების დასამასხვრევად თავგანწირული ბრძოლისიკენ მოუწოდებს მკითხველს.დავით თურდოსპირელის ავტოგრაფებზე მუშაობამ მწერლის შემოქმედებითი პროცესისთვის დამახასიათებელი არაერთი ნიუანსი გამოკვეთა. რაც განსაკუთრებით დამახასიათებელია მისი ხელნაწერებისთვის, რომლებიც ძირითადად შავი ავტოგრაფებია და ნათლად გვიჩვენებს მწერლის შემოქმედებითი მუშაობის პროცესს, ავტორის მიერ ხელმოწერილი და დაუთარიღებელია. ვფიქრობთ, მწერალი შეგნებულად არ ათარიღებდა თავის ხელნაწერებს. როგორც უკვე აღვნიშნეთ, მიუხედავად იმისა, რომ თავისი სათქმელის მკითხველამდე მიტანას სხვადასხვა საშუალებებით ცდილობდა, ხელნაწერების დაუთარიღებლობაც, ალბათ, ერთ-ერთი ხერხი იყო თავისუფალი აზრის დასაცავად.დავით თურდოსპირელის მინიატურები, მიუხედავად თავისუფალი აზრის დევნა-შევიწროებისა, საინტერესოდ ავლენს მწერლის დამოკიდებულებას თანადოულ ისტორიულ-პოლიტიკურ ყოფასთან, ამავდროულად ქვეყნის უკეთესი მერმისისთვის ბრძოლის გზებსაც სახავს
Improving the Depiction of Uncertainty in Simulation Models by Exploiting the Potential of Gaussian Quadratures
No full textSimulationsmodelle sind ein etabliertes Instrument zur Analyse von Auswirkungen exogener Schocks in komplexen Systemen. Die in jüngster Zeit gestiegene verfügbare Rechenleistung und -geschwindigkeit hat die Entwicklung detaillierterer und komplexerer Simulationsmodelle befördert. Dieser Trend hat jedoch Bedenken hinsichtlich der Unsicherheit solcher Modellergebnisse aufgeworfen und daher viele Nutzer von Simulationsmodellen dazu motiviert, Unsicherheiten in ihren Simulationen zu integrieren. Eine Möglichkeit dies systematisch zu tun besteht darin, stochastische Elemente in die Modellgleichungen zu integrieren, wodurch das jeweilige Modell zu einem Problem (mehrfacher) numerischer Integrationen wird. Da es für solche Probleme meist keine analytischen Lösungen gibt, werden numerische Approximationsmethoden genutzt.
Die derzeit zur Quantifizierung von Unsicherheiten in Simulationsmodellen genutzt en Techniken, sind entweder rechenaufwändig (Monte Carlo [MC] -basierte Methoden) oder liefern Ergebnisse von heterogener Qualität (Gauß-Quadraturen [GQs]).
In Anbetracht der Bedeutung von effizienten Methoden zur Quantifizierung von Unsicherheit im Zeitalter von „big data“ ist es das Ziel dieser Doktorthesis, Methoden zu entwickeln, die die Näherungsfehler von GQs verringern und diese Methoden einer breiteren Forschungsgemeinschaft zugänglich machen. Zu diesem Zweck werden zwei neuartige Methoden zur Quantifizierung von Unsicherheiten entwickelt und in vier verschiedene, große partielle und allgemeine Gleichgewichtsmodelle integriert, die sich mit Agrarumweltfragen befassen.
Diese Arbeit liefert methodische Entwicklungen und ist von hoher Relevanz für angewandte Simulationsmodellierer. Obwohl die Methoden in großen Simulationsmodellen für Agrarumweltfragen entwickelt und getestet werden, sind sie nicht durch Modelltyp oder Anwendungsgebiet beschränkt, sondern können ebenso in anderen Zusammenhängen angewandt werden.Simulation models are an established tool for assessing the impacts of exogenous shocks in complex systems. Recent increases in available computational power and speed have led to simulation models with increased levels of detail and complexity. However, this trend has raised concerns regarding the uncertainty of such model results and therefore motivated many users of simulation models to consider uncertainty in their simulations. One way is to integrate stochastic elements into the model equations, thus turning the model into a problem of (multiple) numerical integration. As, in most cases, such problems do not have analytical solutions, numerical approximation methods are applied.
The uncertainty quantification techniques currently used in simulation models are either computational expensive (Monte Carlo [MC]-based methods) or produce results of varying quality (Gaussian quadratures [GQs]).
Considering the importance of efficient uncertainty quantification methods in the era of big data, this thesis aims to develop methods that decrease the approximation errors of GQs and make these methods accessible to the wider research community. For this purpose, two novel uncertainty quantification methods are developed and integrated into four different large-scale partial and general equilibrium models addressing agro-environmental issues.
This thesis provides method developments and is of high relevance for applied simulation modelers who struggle to apply computationally burdensome stochastic modeling methods. Although the methods are developed and tested in large-scale simulation models addressing agricultural issues, they are not restricted to a model type or field of application
There is no ball: smart phone enabled paddleboard
No full textIncludes bibliographical references (pages 45-47)The There Is No Ball system is a web and mobile-based game system, which allows users to play a game of paddleboard without an actual physical ball. The system is composed of two tablets, which communicate to exchange sensor information and simulate the hitting of an imaginary ball back and forth between the two devices. A third device displays the calculated location of the ball and projects its moving image to the screen.
This paper presents the implementation challenges and solutions for coordinating three devices, which use heterogeneous communication protocols to exchange and maneuver various sensor data. Local filtering strategies are applied to improve the responsiveness of actuation and to deliver an enjoyable game experience
There is no ball: smart phone enabled paddleboard
No full textThe There Is No Ball system is a web and mobile-based game system, which allows users to play a game of paddleboard without an actual physical ball. The system is composed of two tablets, which communicate to exchange sensor information and simulate the hitting of an imaginary ball back and forth between the two devices. A third device displays the calculated location of the ball and projects its moving image to the screen. This paper presents the implementation challenges and solutions for coordinating three devices, which use heterogeneous communication protocols to exchange and maneuver various sensor data. Local filtering strategies are applied to improve the responsiveness of actuation and to deliver an enjoyable game experience.Includes bibliographical references (pages 45-47)California State University, Northridge. Department of Computer Science
Water pricing under climate uncertainty – an economy-wide model considering precipitation stochastics
No full textSo far uncertainty of input parameters has not often been systematically analyzed in computable general equilibrium (CGE) modeling. Especially this is true when it comes to climate uncertainty. Instead, CGE models are mostly applied in a deterministic setup making their findings highly dependent on point estimates of key exogenous variables. In this study, we employ a Monte Carlo approach to simulate uncertainty of annual rainfall-induced freshwater recharge in Israel. A novelty of our approach is that we systematically determine the sufficient sample size. The CGE model includes a detailed depiction of water supply and demand it also considers alternative water sources, such as desalination and reclamation of wastewater. We apply our approach to determine the minimum water price that should be charged in order to avoid overexploitation of natural freshwater resources with 90% confidence under different desalination-capacity regimes. Our findings suggest that the current pricing scheme guarantees only in about 45% of the years that water demand remains below the annual renewable freshwater recharge rate. In order to avoid overdrafting of in 90% of the years, the water price would need to be doubled. Yet, the overall effect on the economy of such a price increase would be relatively small, resulting in a drop of GDP by 0.02%, as water constitutes only a small expenditure share in the production of most commodities and services and there are alternative water sources which serve as substitutes. On the household level, welfare effects are overall negative and result in a more unequal distribution. In case the desalination capacity is doubled, potable water prices would only need to be increased by only 21% in order to avoid overdrafting of freshwater resources in 90% of the years. The effect on GDP would not be much different, but effects on household-welfare would be much more balanced and less negative
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