Further Development and Preliminary Results of the AQUILA Hall Thruster Plume Model

2003 ◽  
Author(s):  
Mark Santi ◽  
Shannon Cheng ◽  
Murat Celik ◽  
Manuel Martinez-Sanchez ◽  
Jaime Peraire
Keyword(s):  
Hall Thruster ◽  
Preliminary Results ◽  
Plume Model ◽  
Further Development

scholarly journals Further observations on slip-bands in metallic fractures.—Preliminary note.

1905 ◽  
Vol 74 (497-506) ◽  
pp. 557-562 ◽  
Author(s):  
Walter Rosenhain ◽  
James Alfred Ewing
Keyword(s):  
Plastic Yielding ◽  
Micro Structure ◽  
Preliminary Note ◽  
True Nature ◽  
Iron And Steel ◽  
Preliminary Results ◽  
Slip Bands ◽  
Novel Method ◽  
Oblique Illumination ◽  
Further Development

The main purpose of the present paper is to describe what the author believes to be a novel method of investigating the micro-structure of metals, and to give some account of preliminary results obtained by its aid. The method was devised in order to throw further light on the true nature of slip-bands, and the preliminary results relate mainly to this question. The investigation described in this paper is thus a further development of researches carried out in the first place by Professor J. A. Ewing, F. R. S. and the author jointly (“The Crystalline Structure of Metals,” Bakerian Lecture, 1899), and subsequently by the present author alone (“The Plastic Yielding of Iron and Steel.”) In the course of correspondence on the latter paper, M. F. Osmond drew the attention of the author to certain experimental facts concerning the behaviour of slip-bands under oblique illumination, which had formerly escaped attention.

Hall Thruster Plume Model for Spacecraft Impingement Torque: Development and Validation

2008 ◽  
Vol 45 (4) ◽  
pp. 766-775 ◽  
Author(s):  
Ronald L. Corey ◽  
John Steven Snyder ◽  
Xenophon Price ◽  
Shane P. Malone ◽  
Thomas M. Randolph
Keyword(s):  
Hall Thruster ◽  
Plume Model ◽  
Development And Validation ◽  
Torque Development

Assumptions of Centering – Leveling Device Application in Mechatronic Angle Measuring System

2015 ◽  
Vol 220-221 ◽  
pp. 391-395
Author(s):  
Lauryna Šiaudinytė ◽  
Deividas Sabaitis ◽  
Mindaugas Rybokas ◽  
Domantas Bručas
Keyword(s):  
Measurement Accuracy ◽  
Angle Measurement ◽  
Measuring System ◽  
Measuring Systems ◽  
Measured Object ◽  
Preliminary Results ◽  
Device Application ◽  
Angle Measuring ◽  
Slight Movement ◽  
Further Development

This paper deals with the presentation of the new centering – leveling device developed in Vilnius Gediminas Technical University. Precision angle measuring systems are always combined of many mechanisms and devices which influence angle measurement accuracy. Therefore, every one of them has to be investigated separately. This device can be used as a separate device to perform a slight movement of measured object or it can be used as a part of mechatronic angle measuring system. This paper presents preliminary results of centering – leveling device minimum pitch determination and analysis of further development of this device as a part of mechatronic angle measuring system.

Verification of SSM Hall Thruster Plume Model Considering the Electric Plasma Processes

2004 ◽  
Author(s):  
Anatoly Korsun ◽  
Ekaterina Tverdokhlebova ◽  
Flur Gabdullin ◽  
Alexander Semenkin ◽  
Leonid Zakharenkov ◽  
...  
Keyword(s):  
Hall Thruster ◽  
Plume Model

scholarly journals Peculiarities of the “professional income tax” tax regime

2020 ◽  
pp. 107-112
Author(s):  
R. Sh. Abakarova
Keyword(s):  
Conceptual Understanding ◽  
Russian Federation ◽  
Economic Activity ◽  
Income Tax ◽  
The Self ◽  
Federal Law ◽  
Experimental Conditions ◽  
Preliminary Results ◽  
The Russian Federation ◽  
Further Development

In the context of the widespread introduction of a tax on the self-employed in Russia, there is a need for a conceptual understanding of its role in the economic activity of citizens and the development of regions. In this regard, the article considers the results of its introduction in 2019 and the prospects for further development up to 2029. The article reviews the main aspects of the functioning of the new tax regime in relation to the professional income of the self-employed population in the Russian Federation, which were introduced by Federal Law No. 422-FZ dated on November 27, 2018 in a number of regions of the country. The paper explains the main characteristics of the tax and the procedure for its application. The study summarizes preliminary results of the functioning of the new special tax regime under the experimental conditions.

scholarly journals MAIN STAGES OF DEVELOPMENT ARCHITECTURAL AND PLANNING STRUCTURE OF BISHKEK-FRUNZE-PISHPEK

2020 ◽  
pp. 46-56
Author(s):  
Ya.S. Mazmanov
Keyword(s):  
Urban Planning ◽  
Historical Development ◽  
Stages Of Development ◽  
Development Trends ◽  
Preliminary Results ◽  
Current State ◽  
The City ◽  
Further Development

This article presents preliminary results of the analysis of architecture and urban planning in Bishkek, considers its historically developed architectural and planning structure and historical development trends of historical development in order to understand the main problems of the current state of the city and determine its further development.

scholarly journals State regulation of the land reclamation development at the regional level exemplified by Samara region

2020 ◽  
Vol 27 ◽  
pp. 00007
Author(s):  
Ekaterina V. Lebedeva ◽  
Ekaterina V. Bulankina
Keyword(s):  
State Policy ◽  
Land Reclamation ◽  
State Regulation ◽  
The State ◽  
Regulatory Framework ◽  
Regional Level ◽  
Preliminary Results ◽  
Russian Agriculture ◽  
Further Development

The article considers the role of land reclamation in the development of modern Russian agriculture, defines its role in the development of the domestic land reclamation industry of state regulation. The implementation of the state policy for the maintenance and development of the reclamation industry in the Samara region from 2015 to the present is analyzed. The preliminary results of its implementation are summarized. The material, technical and regulatory framework for the further development of land reclamation in the region is determined.

The Assessment of Cranio-facial Angles Using Polarized Light

1979 ◽  
Vol 6 (4) ◽  
pp. 177-181
Author(s):  
C. J. Minors
Keyword(s):  
Polarized Light ◽  
Sufficient Accuracy ◽  
New Method ◽  
Preliminary Results ◽  
Further Development

A technique is described for measuring various angles used in orthodontic cephalometry without the use of radiography. This new method utilizes the properties of polarized light to transfer the data required from the patient to the apparatus, where it is stored and displayed electronically. Some preliminary results indicate that the method is potentially of sufficient accuracy to merit further development.

Free-zone electrophoresis in glass capillaries.

1981 ◽  
Vol 27 (9) ◽  
pp. 1551-1553 ◽  
Author(s):  
J W Jorgenson ◽  
K D Lukacs
Keyword(s):  
Amino Acids ◽  
Applied Voltage ◽  
Internal Diameter ◽  
Fluorescence Detector ◽  
Preliminary Results ◽  
Free Zone ◽  
Glass Capillaries ◽  
Zone Electrophoresis ◽  
Further Development ◽  
Fluorescent Derivatives

Abstract A simple theory of zone electrophoresis in open-tubular capillaries is developed. According to this theory, to achieve the highest resolution of zones, tubes with as small an inside diameter as possible should be used in combination with as high an applied voltage as feasible. To test this approach, we performed electrophoresis in glass capillaries with an internal diameter of 75 micron and a length of 100 cm. A special fluorescence detector was used to detect fluorescent zones while they migrated inside the capillary. With the application of 30 kV potentials to this system, rapid and efficient separations of amino acids, peptides, and urinary amines were demonstrated. In all cases fluorescent derivatives were necessary for detection. Preliminary results are encouraging, and with further development of sensitive detection devices, applications in clinical analyses may be feasible.

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