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Items from 1 to 20 out of 37 results

article

Honoring the King in the Seleukid and Ptolemaic Empires: A Comparative Approach. Part 2

Catharine C. Lorber

Electrum > 2023 > 30 > 103-195

The paper provides a dossier of honors offered to Seleukid and Ptolemaic kings, preceded by a brief introduction.

article

The Minaeans after Maʿīn? The latest presently dateable Minaic text and the God of Maʿīn

Jason Weimar

Arabian Archaeology and Epigraphy > 32 > S1 > 376 - 387

Historians of Ancient South Arabia have long questioned when the Minaean Kingdom collapsed and when the Minaean people disappeared thereafter. Scholarship presently leans towards dating the fall to sometime in the first century AD with the Minaeans dissipating shortly thereafter. Relevant for the question of the Minaeans’ disappearance is the Minaic RyIIIb stick inscription called L 53, which I decipher...

article

Pyla-Vigla: A Case Study Assessing the Imperial Strategies of the Hellenistic Diadochoi in Cyprus

Brandon R. Olson, R. Scott Moore, Thomas Landvatter, Justin Stephens

Études et Travaux (Institut des Cultures Méditerranéennes et Orientales... > 2021 > 34 > 287-306

The aim of the present study is to examine the mechanisms the Diadochoi implemented to gain and maintain control over Cyprus using Pyla-Vigla, a recently discovered fortified garrison, as a case study. Alexander the Great’s successors faced a seemingly insurmountable problem: How does one govern, control, and maintain the largest territorial empire the world had ever seen? Alexander’s imperial strategy...

article

Armenia in Ptolemy’s Geography (ca. AD 150): A “Parody” of His Work? Some Corrections and Suggestions

Klaus Geus

Electrum > 2021 > 28 > 21-40

Ptolemyʾs Geographike Hyphegesis (Introduction to Geography) (ca. AD 150) consists of a huge and invaluable stock of topographical information. More than 6,000 toponyms are even defined by coordinates. Nevertheless, Ptolemyʾs cities are often misplaced or pop up more than once in his maps. This is especially true with his confusing description of Armenia (geogr. 5.13), which caused a modern scholar...

article

The Euclidean right triangle: remarks on the regular pentagon and the golden ratio

Giuseppe Sansò

Lettera Matematica > 2017 > 4 > 3-4 > 189-194

The article contains an original construction of the Euclidean triangle and its proof, from which a simple graphical technique for the construction of the regular pentagon is derived.

article

A new method for optimizing operation of large neighborhoods of buildings using thermal simulation

Gerhard Zucker, Florian Judex, Max Blöchle, Mario Köstl, more

Energy and Buildings > 2016 > 125 > C > 153-160

Energy consumption in buildings is a key factor when accomplishing national and global CO₂ emission goals. The economic savings per building are limited and are difficult to argue. However, the efforts can be aggregated on district or city level: the approach described in this paper is a large scale co-simulation environment that helps to leverage efficiency by providing quantitative information about...

chapter

Simulation of LET Models in Simulink and Ptolemy

Patricia Derler, Andreas Naderlinger, Wolfgang Pree, Stefan Resmerita, more

Lecture Notes in Computer Science > Foundations of Computer Software. Future Trends and Techniques for Development > 83-92

This paper describes two different approaches of simulating embedded control software whose real-time requirements are explicitly specified by means of the Logical Execution Time (LET) abstraction introduced in the Giotto project. As simulation environments we chose the black-box MATLAB/Simulink product and the open-source project Ptolemy II. The paper first sketches the modeling of LET-based components...

article

Begriffsverfälschungen durch vermeintlich modernisierende Übersetzungen: Das Beispiel ‚orbis‘ (Kugel, Sphäre)/‚orbita‘ (Bahn)

Fritz Krafft

Berichte zur Wissenschaftsgeschichte > 39 > 1 > 52 - 78

Distortion of Scientific Terms by Supposed Modernizing Translations: The Example ‘orbis’ (sphere)/‘orbita’ (orbit). The use of modern terminology and thinking hinders to understand historic astronomical and physical texts and often misleads the reader, because between celestial physics from Aristotle and Ptolemy to Copernic on the one side and since Kepler and Newton on the other side a fundamental...

chapter

Implementation of Hierarchical Model in Ptolemy for Wireless Sensor Networks

Stuti T. Shah, Ekata Mehul

Communications in Computer and Information Science > Trends in Network and Communications > Wireless and Mobile Networks > 416-423

With the complexity of developing embedded Systems and sensor networks, modeling is essential. Modeling before implementation enables designers to explore ideas and verify the correctness of their design early in the design cycle thus reducing iterations during the final stage. This paper deals with implementation of hierarchical model using open source modeling tool Ptolemy. Different directors available...

chapter

Actor-Oriented Models for Codesign

Edward A. Lee, Stephen Neuendorffer

Formal Methods and Models for System Design > Methods and Models for System Level Design > 33-56

Most current hardware engineering practice is deeply rooted in discrete-event modeling and synchronous design. Most current software engineering is deeply rooted in procedural abstractions. The latter says little about concurrency and temporal properties, whereas the former lacks many of modularity capabilities of modern programming languages. Actor-oriented design emphasizes concurrency and communication...

article

Did Ptolemy make novel predictions? Launching Ptolemaic astronomy into the scientific realism debate

Christián Carman, José Díez

Studies in History and Philosophy of Science > 2015 > 52 > Complete > 20-34

The goal of this paper, both historical and philosophical, is to launch a new case into the scientific realism debate: geocentric astronomy. Scientific realism about unobservables claims that the non-observational content of our successful/justified empirical theories is true, or approximately true. The argument that is currently considered the best in favor of scientific realism is the No Miracles...

article

Meta-mathematical rhetoric: Hero and Ptolemy against the philosophers

Jacqueline Feke

Historia Mathematica > 2014 > 41 > 3 > 261-276

Bringing the meta-mathematics of Hero of Alexandria and Claudius Ptolemy into conversation for the first time, I argue that they employ identical rhetorical strategies in the introductions to Hero's Belopoeica, Pneumatica, Metrica and Ptolemy's Almagest. They each adopt a paradigmatic argument, in which they criticize the discourses of philosophers and declare epistemological supremacy for mathematics...

article

Mathematical tables in Ptolemy's Almagest

Nathan Sidoli

Historia Mathematica > 2014 > 41 > 1 > 13-37

This paper is a discussion of Ptolemy's use of mathematical tables in the Almagest. By focusing on Ptolemy's mathematical practice and terminology, I argue that Ptolemy used tables as part of an organized group of units of text, which I call the table nexus. In the context of this deductive structure, tables function in the Almagest in much the same way as theorems in a canonical work, such as the...

chapter

Distributed Simulation of Heterogeneous and Real-Time Systems

Gilles Lasnier, Janette Cardoso, Pierre Siron, Claire Pagetti, more

2013 IEEE/ACM 17th International Symposium on Distributed Simulation and Real Time Applications > 55 - 62

2013 IEEE/ACM 17th International Symposium on Distributed Simulation and Real Time Applications (DS-RT)

This work describes a framework for distributed simulation of cyber-physical systems (CPS). Modern CPS comprise large numbers of heterogeneous components, typically designed in very different tools and languages that are not or not easily compose able. Evaluating such large systems requires tools that integrate all components in a systematic, well-defined manner. This work leverages existing frameworks...

article

That Copernican Moment

Brian David Johnson

Computer > 2013 > 46 > 9 > 101 - 103

What happens if David Deutsch's theories are correct, and we're living in not just one universe but a collection of tightly parallel universes that make up a multiverse? The Web extra at http://youtu.be/sl7wr1PosHc is an audio discussion of the Science Fiction Prototyping column, in which author Brian David Johnson talks with Tony Salvador, director of Intel's Experience Insights Lab and senior principal...

article

Void Points, Rosettes, and a Brief History of Planetary Astronomy

Peter Kosso

Physics in Perspective > 2013 > 15 > 4 > 373-390

Almost all models of planetary orbits, from Aristotle through Newton, include void points, empty points in space that have an essential role in defining the orbit. By highlighting the role of these void points, as well as the rosette pattern of the orbit that often results, I bring out different features in the history of planetary astronomy and place a different emphasis on its revolutionary changes,...

chapter

The Development of a Methodology with a Tool Support to the Distributed Simulation of Heterogeneous and Complexes Embedded Systems

Angelo Lemos Vidal de Negreiros, Alisson Vasconcelos Brito

2012 Brazilian Symposium on Computing System Engineering > 37 - 42

2012 Brazilian Symposium on Computing System Engineering (SBESC)

Nowadays, embedded systems contains a big computational power and consequently a big complexity. It is very common to find different kinds of applications being executed in embedded systems. With this scenario, it is necessary some method and/or tool that allows the simulation of those systems in an efficient and practice way. The goal of this paper is to expose the integration between Ptolemy II...

article

Ptolemy operations and results during the Lutetia flyby

D.J. Andrews, A.D. Morse, S.J. Barber, M.R. Leese, more

Planetary and Space Science > 2012 > 66 > 1 > 179-186

The September 5th 2008 Rosetta flyby of asteroid 2867 Šteins raised tantalising questions concerning the possibility of outgassing and extant exospheres surrounding small bodies within the asteroid belt. With this in mind and recognising the size and composition of asteroid 21 Lutetia it was decided to attempt a detection of such possible outgassing using a number of Rosetta instruments, including...

article

From Hipparchus to a helix ruler

Jerold Mathews

Resonance > 2012 > 17 > 1 > 44-52

This paper gives a brief history of the chord function — a precursor of the sine function — from the mathematics/astronomy of Hipparchus and Ptolemy to the early twentieth century.

chapter

Heterogeneous actor modeling

Edward A. Lee

2011 Proceedings of the Ninth ACM International Conference on Embedded Software (EMSOFT) > 3 - 12

2011 International Conference on Embedded Software (EMSOFT)

Complex systems demand diversity in the modeling mechanisms. This “roadmap” paper prescribes an approach to modeling based on concurrent communicating components (called actors), where a diversity of orchestration strategies govern the execution and interaction of the components. The prescribed approach has been extensively explored in the Ptolemy Project, but as yet is not widely deployed in engineering...

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Honoring the King in the Seleukid and Ptolemaic Empires: A Comparative Approach. Part 2

The Minaeans after Maʿīn? The latest presently dateable Minaic text and the God of Maʿīn

Pyla-Vigla: A Case Study Assessing the Imperial Strategies of the Hellenistic Diadochoi in Cyprus

Armenia in Ptolemy’s Geography (ca. AD 150): A “Parody” of His Work? Some Corrections and Suggestions

The Euclidean right triangle: remarks on the regular pentagon and the golden ratio

A new method for optimizing operation of large neighborhoods of buildings using thermal simulation

Simulation of LET Models in Simulink and Ptolemy

Begriffsverfälschungen durch vermeintlich modernisierende Übersetzungen: Das Beispiel ‚orbis‘ (Kugel, Sphäre)/‚orbita‘ (Bahn)

Implementation of Hierarchical Model in Ptolemy for Wireless Sensor Networks

Actor-Oriented Models for Codesign

Did Ptolemy make novel predictions? Launching Ptolemaic astronomy into the scientific realism debate

Meta-mathematical rhetoric: Hero and Ptolemy against the philosophers

Mathematical tables in Ptolemy's Almagest

Distributed Simulation of Heterogeneous and Real-Time Systems

That Copernican Moment

Void Points, Rosettes, and a Brief History of Planetary Astronomy

The Development of a Methodology with a Tool Support to the Distributed Simulation of Heterogeneous and Complexes Embedded Systems

Ptolemy operations and results during the Lutetia flyby

From Hipparchus to a helix ruler

Heterogeneous actor modeling

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