scholarly journals SIMULATION OF PHYSICAL PROCESSES IN MICROCIRCUITS IN SPACE ENVIRONMENT

2021 ◽  
Author(s):  
Konstantin Zolnikov ◽  
Yu. Gromov ◽  
Svetlana Evdokimova ◽  
Tatyana Skvortsova ◽  
O. Oksyuta ◽  
...  
Keyword(s):  
Space Environment ◽  
Physical Processes ◽  
Technological Basis ◽  
Complex Combination

The paper considers the circuit engineering and structural-technological basis of new devel-opments of special-purpose microcircuits, the prospects for its development are determined. The complexity of solving the problem is established, which consists in a complex combination and elimination of contradictions of various principles of creating equipment. It is assumed that the particle enters the circuit at a time equal to the beginning of switching. The frequency of the chip is 30 MHz, which corresponds to most of the frequencies that are used in spacecraft.

scholarly journals Keith David Cole 1929–2010

2014 ◽  
Vol 25 (1) ◽  
pp. 71 ◽  
Author(s):  
Peter L. Dyson ◽  
David J. Cole
Keyword(s):  
High School ◽  
Space Physics ◽  
Space Environment ◽  
Limited Data ◽  
Physical Processes ◽  
Leadership Positions ◽  
Macquarie Island ◽  
The Earth ◽  
Antarctic Research ◽  
And Mathematics

Keith Cole grew up in Cairns, attended the local high school, and became the first in his family to attend university. Trained in physics and mathematics, he taught in secondary schools before joining the 1956 Australian National Antarctic Research Expedition to Macquarie Island as Auroral Physicist. This was the start of his lifelong career in space physics, exploring primarily the space environment of the Earth. He had a remarkable ability to identify the important physical processes underlying many phenomena, often when only limited data or observations were available. Thus early in his career he correctly explained several puzzling phenomena, particularly in the ionosphere and thermosphere, and quickly established himself as a leader in space physics, a position he maintained throughout his career. He also made very significant contributions as an educator (he was a Foundation Professor of Physics at La Trobe University) and through leadership positions in national and international science organizations.

Models of Thermodynamic Properties of Prominences

1979 ◽  
Vol 44 ◽  
pp. 349-355
Author(s):  
R.W. Milkey
Keyword(s):  
Thermodynamic Properties ◽  
Mass Transport ◽  
Emission Spectrum ◽  
Thermodynamic Parameters ◽  
Working Group ◽  
Physical Processes ◽  
Theoretical Concepts ◽  
Group 3 ◽  
Observational Techniques

The focus of discussion in Working Group 3 was on the Thermodynamic Properties as determined spectroscopically, including the observational techniques and the theoretical modeling of physical processes responsible for the emission spectrum. Recent advances in observational techniques and theoretical concepts make this discussion particularly timely. It is wise to remember that the determination of thermodynamic parameters is not an end in itself and that these are interesting chiefly for what they can tell us about the energetics and mass transport in prominences.

Sampling and analysis of the air-water interface with SEM and EDS of microlayers

1989 ◽  
Vol 47 ◽  
pp. 1004-1005
Author(s):  
Randall W. Smith ◽  
John Dash
Keyword(s):  
Heavy Metals ◽  
Surface Microlayer ◽  
Surface Films ◽  
Water Interface ◽  
Physical Processes ◽  
Infrared Spectroscopic Analysis ◽  
Eds Analysis ◽  
Air Water Interface ◽  
Significant Area ◽  
Bulk Chemical

The structure of the air-water interface forms a boundary layer that involves biological ,chemical geological and physical processes in its formation. Freshwater and sea surface microlayers form at the air-water interface and include a diverse assemblage of organic matter, detritus, microorganisms, plankton and heavy metals. The sampling of microlayers and the examination of components is presently a significant area of study because of the input of anthropogenic materials and their accumulation at the air-water interface. The neustonic organisms present in this environment may be sensitive to the toxic components of these inputs. Hardy reports that over 20 different methods have been developed for sampling of microlayers, primarily for bulk chemical analysis. We report here the examination of microlayer films for the documentation of structure and composition.Baier and Gucinski reported the use of Langmuir-Blogett films obtained on germanium prisms for infrared spectroscopic analysis (IR-ATR) of components. The sampling of microlayers has been done by collecting fi1ms on glass plates and teflon drums, We found that microlayers could be collected on 11 mm glass cover slips by pulling a Langmuir-Blogett film from a surface microlayer. Comparative collections were made on methylcel1ulose filter pads. The films could be air-dried or preserved in Lugol's Iodine Several slicks or surface films were sampled in September, 1987 in Chesapeake Bay, Maryland and in August, 1988 in Sequim Bay, Washington, For glass coverslips the films were air-dried, mounted on SEM pegs, ringed with colloidal silver, and sputter coated with Au-Pd, The Langmuir-Blogett film technique maintained the structure of the microlayer intact for examination, SEM observation and EDS analysis were then used to determine organisms and relative concentrations of heavy metals, using a Link AN 10000 EDS system with an ISI SS40 SEM unit. Typical heavy microlayer films are shown in Figure 3.

Quantitative surface damage studies by H.R.E.M.

1989 ◽  
Vol 47 ◽  
pp. 632-633
Author(s):  
S. R. Singh ◽  
H. J. Fan ◽  
L. D. Marks
Keyword(s):  
Solar Wind ◽  
Quantitative Analysis ◽  
Surface Science ◽  
Surface Damage ◽  
Space Environment ◽  
Oxygen Desorption ◽  
The Past ◽  
Diffusion Controlled ◽  
Original Observation ◽  
Substantial Interest

Since the original observation that the surfaces of materials undergo radiation damage in the electron microscope similar to that observed by more conventional surface science techniques there has been substantial interest in understanding these phenomena in more detail; for a review see. For instance, surface damage in a microscope mimics damage in the space environment due to the solar wind and electron beam lithographic operations.However, purely qualitative experiments that have been done in the past are inadequate. In addition, many experiments performed in conventional microscopes may be inaccurate. What is needed is careful quantitative analysis including comparisons of the behavior in UHV versus that in a conventional microscope. In this paper we will present results of quantitative analysis which clearly demonstrate that the phenomena of importance are diffusion controlled; more detailed presentations of the data have been published elsewhere.As an illustration of the results, Figure 1 shows a plot of the shrinkage of a single, roughly spherical particle of WO3 versus time (dose) driven by oxygen desorption from the surface.

New Director Named for NOAA's Space Environment Center

Space Weather ◽  
2006 ◽  
Vol 4 (6) ◽  
pp. n/a-n/a
Author(s):  
Mohi Kumar
Keyword(s):  
Space Environment

Oil Prices: Limits to Growth and the Depth of Falling

2006 ◽  
pp. 28-41 ◽  
Author(s):  
I. Bashmakov
Keyword(s):  
Energy Demand ◽  
Negative Relationship ◽  
Oil Prices ◽  
Production Factor ◽  
Energy Costs ◽  
Purchasing Power ◽  
Limits To Growth ◽  
Technological Basis ◽  
Production Factors ◽  
Output Ratio

This article deals with the determination of future oil prices. The approach used is based on the evaluation of purchasing power limits and allows to put the limits to monopolistic price setting. Several important findings are formulated: going beyond the upper thresholds of purchasing power stipulates negative relationship between energy costs and GDP growth rates, and this brings the dynamics to energy demand to price elasticity. This approach is also based on what the author calls the economics of constants and variables, i.e. on the existence of very stable macroeconomic proportions, which may be observed throughout the whole period of statistical observations (over 200 years). It provides grounds for two conclusions. First, the upper limit of energy costs to the gross output ratio is determined by the least acceptable profitability. Second, the theoretical postulate on substantial production factors substitution used in the production functions theory may be incorrect. In reality, the change of the economy technological basis leads to the substitution of low quality production factor by the same factor with a higher quality. Application of this approach brings the basis for predicting oil prices for 2006-2008.

ORGANIZATION OF FOREIGN LANGUAGES DISTANCE LEARNING COURSE AT HIGH SCHOOL

2021 ◽  
pp. 118-123
Author(s):  
Denysenko I.I. ◽  
Tarasiuk A.M.
Keyword(s):  
High School ◽  
Distance Learning ◽  
Foreign Language ◽  
Language Teaching ◽  
Foreign Language Teaching ◽  
Educational Process ◽  
Foreign Languages ◽  
Full Time ◽  
Technological Basis ◽  
Independent Work

The article is devoted to one of the advanced formats of foreign language teaching at high school, which effectively complements extramural and full-time forms of education – distance learning. The author emphasizes that the quality and effectiveness of foreign languages distance learning athigher educational establishments depends on effectively organized course; the pedagogical skills of teachers, participating in the educational process; the quality of applied methodical content.The main principles of foreign languages distance learning in higher education has been covered, the means of improving the quality and effectiveness of this educational format has been proposed, the key conceptual regulations of foreign languages distance learning has been determined. The article proposes a model for organizing foreign languages distance learning course for future specialists, describes a system to control and monitor the knowledge of all types of speech activities. It is also noted that independent work in the foreign languages distance course at high school should not be passive, but on the contrary, the student should be involved in active cognitive activities, not limited to acquiring foreign language skills, but necessarily includes their practical application; to solve certain communicative tasks in the future professional activity.The article concludes that in the process of organizing the foreign language distance learning course at high school, it is necessary to take into account not only the didactic characteristics and functions of multimedia and telecommunications as a technological basis, but also the conceptual trends of didactic distance learning as a component of modern education. In addition, it is necessary to take into account the specific nature of foreign language teaching in general.Key words: higher educational establishment, distance learning, multimedia means, independent work, information and communicative technologies, Internet, interactive engagement.

Distributed Modeling Of Building Systems Through Cyber-Physical Integration

2019 ◽  
pp. 12-17
Keyword(s):  
Data Structure ◽  
Operating Conditions ◽  
Physical Models ◽  
Distributed Model ◽  
Physical Processes ◽  
Distributed Modeling ◽  
Distributed Models ◽  
Operating Modes ◽  
Building Systems ◽  
Important Practical Application

This article describes the proposed approaches to creating distributed models that can, with given accuracy under given restrictions, replace classical physical models for construction objects. The ability to implement the proposed approaches is a consequence of the cyber-physical integration of building systems. The principles of forming the data structure of designed objects and distributed models, which make it possible to uniquely identify the elements and increase the level of detail of such a model, are presented. The data structure diagram of distributed modeling includes, among other things, the level of formation and transmission of signals about physical processes inside cyber-physical building systems. An enlarged algorithm for creating the structure of the distributed model which describes the process of developing a data structure, formalizing requirements for the parameters of a design object and its operating modes (including normal operating conditions and extreme conditions, including natural disasters) and selecting objects for a complete group that provides distributed modeling is presented. The article formulates the main approaches to the implementation of an important practical application of the cyber-physical integration of building systems - the possibility of forming distributed physical models of designed construction objects and the directions of further research are outlined.

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