Author: Antonio d' AchiardiPublisher:
ISBN:
Category :
Languages : en
Pages : 1056
Book Description
I Metalli Loro Minerali E Miniere Di Antionio D'Achiardi
Author: Antonio d' AchiardiPublisher:
ISBN:
Category :
Languages : en
Pages : 1056
Book Description
International Catalogue of Scientific Literature
Author: International Catalogue of Scientific Literature [1901-1914]
![International Catalogue of Scientific Literature [1901-1914] PDF](https://books.google.com/books/content/images/frontcover/bmw7AQAAMAAJ?fife=w80-h100)
Author: Minerals Yearbook
Author: 
Author: Publisher: BoD – Books on Demand
ISBN: 3385059585
Category :
Languages : en
Pages : 506
Book Description
High Temperatures in Aeronautics
Author: Carlo FerrariPublisher: Elsevier
ISBN: 1483155021
Category : Technology & Engineering
Languages : en
Pages : 472
Book Description
High Temperatures in Aeronautics is a compilation of the proceedings of the Symposium on High Temperatures in Aeronautics held in Turin, Italy, on September 10-12, 1962. The symposium provided a forum to discuss the applications of high temperatures in aeronautics and covers topics ranging from supersonic combustion to non-equilibrium flow through a nozzle, along with similarity parameters in radiation gas-dynamics and photoionization upstream of a strong shock wave. This volume is comprised of 17 chapters and begins with an overview of the effects and consequences of high temperature in aeronautics, followed by an analysis of experimental results for the dissociation of diatomic gases. A theoretical and experimental investigation of mixing and supersonic combustion is then presented, focusing on inviscid flow fields with a finite rate chemistry for a hydrogen-air reaction. Turbulent mixing for flows with large density gradients having no chemical reaction is also considered, and the results of experiments in supersonic combustion are discussed. Subsequent chapters deal with silicon nitride, its properties, and its potential use at elevated temperatures; materials problems at high temperature; and the corrosion of refractory alloys by oil ash containing vanadium. This monograph will be of interest to students, engineers, and experimental workers in the fields of astronautics and aeronautical engineering.
Debasement
Author: Kevin ButcherPublisher: Oxbow Books
ISBN: 1789254019
Category : Social Science
Languages : en
Pages : 234
Book Description
The debasement of coinage, particularly of silver, was a common feature of pre-modern monetary systems. Most coinages were issued by state authorities and the condition of a coinage is often seen (rightly or wrongly) as an indicator of the broader fiscal health of the state that produced it. While in some cases the motives behind the debasements or reductions in standards are clear, in many cases the intentions of the issuing authorities are uncertain. Various explanations have been advanced: fiscal motives (such as a desire to profit or a to cover a deficit caused by the failure to balance expenditure and revenues); monetary motives (such as changing demand for coined money or a desire to maintain monetary stability in the face of changing values of raw materials or labour costs); pressure from groups within society that would profit from debasement; misconduct at the mint; or the decline of existing monetary standards due to circulation and wear of the coinage in circulation. Certain explanations have tended to gain favour with monetary historians of specific periods, partly reflecting the compartmentalization of scholarship. Thus the study of Roman debasements emphasizes fiscal deficits, whereas medievalists are often more prepared to consider monetary factors as contributing to debasements. To some extent these different approaches are a reflection of discrepancies in the amount of documentary evidence available for the respective periods, but the divide also underlines fundamentally different approaches to the function of coinage: Romanists have preferred to see coins as a medium for state payments; whereas medievalists have often emphasized exchange as an important function of currency. The volume is inter-disciplinary in scope. Apart from bringing together monetary historians of different periods, it also contains contributions from archaeometallurgists who have experience with the chemical and physical composition of coins and technical aspects of production of base alloys
Dizionario Italiano Ed Inglese. A Dictionary Italian and English, Containing All the Words of the Vocabulary Della Crusca and Several Hundred More Taken from the Most Approved Authors; with Proverbs and Familiar Phrases, to which is Prefix'd a Table of Authors, Quoted in this Work... By Ferdinand Altieri, ..
Author: Comparing Greek Colonies
Author: Camilla ColombiPublisher: Walter de Gruyter GmbH & Co KG
ISBN: 3110752158
Category : Art
Languages : en
Pages : 614
Book Description
The need for a "new" book on Greek colonization arose to analyse this phenomenon as a long-term process in a wide geographic area. The events related to individual cities and regions, although geographically very distant from each other, are linked through an articulated network of material and immaterial relations and have to be considered as part of a broader mobility process in a Mediterranean perspective. The intention of "Comparing Greek Colonies" is to bring geographically and culturally distant regions such as Southern Italy/Sicily and the Black Sea, closer together, not merely to find "similarities and differences", but to broaden the scholars’ perspective and overcome existing, generalizing, and biased models, that are often rooted in local scientific traditions. The proceedings of the international conference "Comparing Greek Colonies. Mobility and Settlement Consolidation from Southern Italy to the Black Sea (8th – 6th century BC)", 7.–9.11.2018 in Rome, are structured around three core topics (economic system; relationships with the indigenous populations; social and territorial systems) that constitute the cornerstones of the political formation of the polis in the Archaic period and for its development during the Classical and Hellenistic Ages.
Il Pianeta Del Futuro
Author: Fred PearcePublisher: Bruno Mondadori
ISBN: 8861595898
Category :
Languages : en
Pages : 245
Book Description