The topography of Hermione—A preliminary outline

2021 ◽  
Vol 14 ◽  
pp. 77-99
Author(s):  
Henrik Gerding
Keyword(s):  
Original Position ◽  
City Area ◽  
Preliminary Results ◽  
Exact Location ◽  
Ancient City ◽  
Previous Scholarship

The preliminary results of a survey of ancient Hermione (epichoric Hermion) are presented in this paper. The survey was conducted during three short campaigns over the period 2015–2017, and focused on the urban layout and development of the ancient city. Because the ancient city area more or less coincides with modern Ermioni, the investigation was mainly restricted to the documentation and analysis of architectural remains that were both still visible above ground and accessible. However, the report also includes a thorough re-evaluation of previous scholarship, taking into consideration remains that are no longer visible. The author identifies three questions of particular interest, relating to the exact location, extent, and potential relocation of the ancient city, and points to the lack of a coherent interpretation. On the basis of present data, the author proposes that Hermione was indeed relocated to a new site, less than 1 km away from its original position, in the early 3rd century BC, and highlights the urban, social, and religious consequences of such an event. However, pending further evidence, the suggested scenario remains a hypothesis.

The Orkhon Inscriptions

1930 ◽  
Vol 5 (4) ◽  
pp. 861-876 ◽  
Author(s):  
E. Denison Ross
Keyword(s):  
Original Position ◽  
The West ◽  
North West ◽  
The North ◽  
Ancient City ◽  
Runic Inscriptions

The two famous monuments known as the Orkhon Inscriptions, erected in honour of the two Turkish princes, Kül-Tegin and his brother Bilgä Kagan, though mentioned in Chinese histories, remained forgotten and ignored down to quite recent times. They stand near the Lake Kocho Tsaīdam, to the west of the River Orkhon, about 50 miles north of the monastery of Erdentso (the site of the ancient city of Kara Korum), and about 25 miles to the north-west of the ruins of the capital of the Uighurs, Kara-Balgassun. They are two great square monoliths, which originally reposed in two sockets. Both these sockets are still in their original position, but the monuments have been thrown down, with the result that Monument II is in four pieces. They contain long Turkish inscriptions in Runic characters on three sides, and on one side (the western) the inscription is in Chinese. The Chinese inscriptions are very beautifully cut; the Runic inscriptions, which are also probably the work of the Chinese stonecutters, are less elegant. It may be mentioned that the Chinese inscriptions differ entirely in their contents from the Turkish.

Tingitana Frontier Project. Rapport préliminaire de recherche de la mission polono-marocaine dans la région de Volubilis au Maroc pendant la saison 2018

2020 ◽  
pp. 433-446
Author(s):  
Maciej Czapski ◽  
Mustapha Atki
Keyword(s):  
Ceramic Material ◽  
Human Activity ◽  
Field Research ◽  
Roman Period ◽  
Field Observations ◽  
Preliminary Results ◽  
Defence System ◽  
Ancient City

The report presents the preliminary results of the work of the Polish-Moroccan expedition in the region of the ancient city Volubilis in 2018. The research carried out in Morocco aims to answer the question of the appearance and functioning of the border defence system of the province Mauritania Tingitana. The topic is not sufficiently developed in existing publications. Field research has provided new data and interesting field observations. Recognition of the human activity from the Roman period in the region has allowed us to collect interesting ceramic material for preliminary dating of the sites.

The O–C diagrams of minor planets − a new approach to modelling the rotation

1999 ◽  
Vol 173 ◽  
pp. 185-188
Author(s):  
Gy. Szabó ◽  
K. Sárneczky ◽  
L.L. Kiss
Keyword(s):  
Error Analysis ◽  
Time Dependence ◽  
Theoretical Work ◽  
Minor Planet ◽  
Minor Planets ◽  
New Approach ◽  
Preliminary Results ◽  
Ccd Observations

AbstractA widely used tool in studying quasi-monoperiodic processes is the O–C diagram. This paper deals with the application of this diagram in minor planet studies. The main difference between our approach and the classical O–C diagram is that we transform the epoch (=time) dependence into the geocentric longitude domain. We outline a rotation modelling using this modified O–C and illustrate the abilities with detailed error analysis. The primary assumption, that the monotonity and the shape of this diagram is (almost) independent of the geometry of the asteroids is discussed and tested. The monotonity enables an unambiguous distinction between the prograde and retrograde rotation, thus the four-fold (or in some cases the two-fold) ambiguities can be avoided. This turned out to be the main advantage of the O–C examination. As an extension to the theoretical work, we present some preliminary results on 1727 Mette based on new CCD observations.

Cyclic Evolution of Sunspots: Gleaning New Results from Old Data

2000 ◽  
Vol 179 ◽  
pp. 163-165
Author(s):  
S. K. Solanki ◽  
M. Fligge ◽  
P. Pulkkinen ◽  
P. Hoyng
Keyword(s):  
Sunspot Number ◽  
Sunspot Cycle ◽  
Preliminary Results ◽  
Butterfly Diagram

AbstractThe records of sunspot number, sunspot areas and sunspot locations gathered over the centuries by various observatories are reanalysed with the aim of finding as yet undiscovered connections between the different parameters of the sunspot cycle and the butterfly diagram. Preliminary results of such interrelationships are presented.

Systematic effects in observed parallaxes

1978 ◽  
Vol 48 ◽  
pp. 31-35
Author(s):  
R. B. Hanson
Keyword(s):  
Error Estimates ◽  
Zero Point ◽  
Absolute Zero ◽  
Apparent Magnitude ◽  
Coherent System ◽  
Preliminary Results ◽  
General Catalogue ◽  
Systematic Effects ◽  
New Evidence ◽  
Right Ascension

Several outstanding problems affecting the existing parallaxes should be resolved to form a coherent system for the new General Catalogue proposed by van Altena, as well as to improve luminosity calibrations and other parallax applications. Lutz has reviewed several of these problems, such as: (A) systematic differences between observatories, (B) external error estimates, (C) the absolute zero point, and (D) systematic observational effects (in right ascension, declination, apparent magnitude, etc.). Here we explore the use of cluster and spectroscopic parallaxes, and the distributions of observed parallaxes, to bring new evidence to bear on these classic problems. Several preliminary results have been obtained.

Quantitative Measurements on the Ion Etching of TMV

1973 ◽  
Vol 31 ◽  
pp. 336-337
Author(s):  
Irwin Bendet ◽  
Nabil Rizk
Keyword(s):  
Electron Microscope ◽  
Tobacco Mosaic Virus ◽  
Mosaic Virus ◽  
Ion Current ◽  
Beam Diameter ◽  
Ion Etching ◽  
Preliminary Results ◽  
Quantitative Measurements ◽  
Monitoring Devices

Preliminary results reported last year on the ion etching of tobacco mosaic virus indicated that the diameter of the virus decreased more rapidly at 10KV than at 5KV, perhaps reaching a constant value before disappearing completely.In order to follow the effects of ion etching on TMV more quantitatively we have designed and built a second apparatus (Fig. 1), which incorporates monitoring devices for measuring ion current and vacuum as well as accelerating voltage. In addition, the beam diameter has been increased to approximately 1 cm., so that ten electron microscope grids can be exposed to the beam simultaneously.

Granular bainite or granular ferrite? A preliminary TEM investigation of an HSLA-100 steel

1991 ◽  
Vol 49 ◽  
pp. 584-585
Author(s):  
R. Varughese ◽  
S. W. Thompson ◽  
P. R. Howell
Keyword(s):  
Room Temperature ◽  
Transformation Products ◽  
Accurate Description ◽  
Granular Bainite ◽  
Preliminary Results ◽  
The Past ◽  
Light Micrograph ◽  
Multiphase Reaction ◽  
Detailed Nature

Ever since Habraken and Economopoulos first employed the term granular bainite to classify certain unconventional transformation products in continuously cooled steels, the term has been widely accepted and used, despite the lack of a clear consensus as to the detailed nature of the transformation products which constitute granular bainite. This paper presents the preliminary results of a TEM investigation of an 0.04 wt% C, copper-containing steel (designated HSLA-100). It is suggested that the term granular ferrite rather than granular bainite is a more accurate description of this multiphase reaction product.Figure 1 is a light micrograph of a sample which had been air-cooled from 900°C to room temperature. The microstructure is typical of that which has been termed granular bainite in the past and appears to consist of equiaxed ferritic grains together with other minor transformation products. In order to examine these structures in more detail, both continuously cooled and isothermally transformed and quenched materials have been examined with TEM. Granular bainite has been found in virtually all samples.

Point-Cathode Electron Gun Using Electron-Beam Bombardment for Cathode Tip Heating

1990 ◽  
Vol 48 (1) ◽  
pp. 198-199
Author(s):  
Ryo Iiyoshi ◽  
Susumu Maruse ◽  
Hideo Takematsu
Keyword(s):  
Electron Beam ◽  
Tungsten Wire ◽  
Local Heating ◽  
Electron Gun ◽  
Original Position ◽  
Beam Power ◽  
Radius Of Curvature ◽  
High Brightness ◽  
Beam Focusing ◽  
Time Operation

Point cathode electron gun with high brightness and long cathode life has been developed. In this gun, a straightened tungsten wire is used as the point cathode, and the tip is locally heated to higher temperatures by electron beam bombardment. The high brightness operation and some findings on the local heating are presented.Gun construction is shown in Fig.l. Small heater assembly (annular electron gun: 5 keV, 1 mA) is set inside the Wehnelt electrode. The heater provides a disk-shaped bombarding electron beam focusing onto the cathode tip. The cathode is the tungsten wire of 0.1 mm in diameter. The tip temperature is raised to the melting point (3,650 K) at the beam power of 5 W, without any serious problem of secondary electrons for the gun operation. Figure 2 shows the cathode after a long time operation at high temperatures, or high brightnesses. Evaporation occurs at the tip, and the tip part retains a conical shape. The cathode can be used for a long period of time. The tip apex keeps the radius of curvature of 0.4 μm at 3,000 K and 0.3 μm at 3,200 K. The gun provides the stable beam up to the brightness of 6.4×106 A/cm2sr (3,150 K) at the accelerating voltage of 50 kV. At 3.4×l06 A/cm2sr (3,040 K), the tip recedes at a slow rate (26 μm/h), so that the effect can be offset by adjusting the Wehnelt bias voltage. The tip temperature is decreased as the tip moves out from the original position, but it can be kept at constant by increasing the bombarding beam power. This way of operation is possible for 10 h. A stepwise movement of the cathode is enough for the subsequent operation. Higher brightness operations with the rapid receding rates of the tip may be improved by a continuous movement of the wire cathode during the operations. Figure 3 shows the relation between the beam brightness, the tip receding rate by evaporation (αis the half-angle of the tip cone), and the cathode life per unit length, as a function of the cathode temperature. The working life of the point cathode is greatly improved by the local heating.

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