THE QUARTER-CENTURY STATE OF LASER-PLASMA INVERSTIGATIONS IN UZHGOROD STATE UNIVERSITY

2000 ◽  
Vol 6 (0) ◽  
pp. 62-75
Author(s):  
І. І. Опачко
Keyword(s):  
Laser Plasma ◽  
State University ◽  
Quarter Century

REVIEW OF THE ALL-RUSSIAN SCIENTIFIC CONFERENCE “25 YEARS OF THE CONSTITUTION OF THE RUSSIAN FEDERATION: TRADITIONS AND INNOVATIONS OF STATE AND LEGAL DEVELOPMENT”

2018 ◽  
pp. 130-135 ◽  
Author(s):  
Roman Valerevich Zelepukin
Keyword(s):  
Russian Federation ◽  
Basic Research ◽  
Scientific Conference ◽  
State University ◽  
Quarter Century ◽  
Legal Principles ◽  
Legal Development ◽  
Russian Scientific ◽  
Basic Law ◽  
The Russian Federation

We introduce the review of the all-Russian scientific conference “25 years of the Constitution of the Russian Federation: Traditions and Innovations of State and Legal Development”, which took place on October 19–20, 2018 and organized by the Tambov State University named after G.R. Derzhavin in the framework of the grant project № 18-411-681005 (р_г), supported by the Russian Foundation for Basic Research and the administration of the Tambov Region. Also noted are other co-organizers of the conference, which were the Tambov regional branch of the all-Russian public organization “Association of Lawyers of Russia”, Academy of Federal Penitentiary Service of Russia, Tambov regional notary chamber, the company “Plus Guarantee”. The conference was aimed at discussing and understanding the current state of the constitutional foundations of Russian statehood, its stability, the role and importance of the basic law of the country in the prism of its existence, implementation and application for a quarter century. The participants of the conference were scientists in the field of general theory of state and law, constitutional law, as well as other areas of law, representatives of authorities, public associations, legal corporations. The review highlights the content of the plenary and breakout sessions, which were called: “Constitutional and Legal Principles of Russian Statehood: History and Modernity”, “State, Law, Personality: Theoretical and Practical Models of Interaction”, “Constitutional Foundations of State Structure at the Present Stage”.

scholarly journals Quarter Century of American Studies in Volgograd

2021 ◽  
pp. 350-368
Author(s):  
Alexandеr I. Kubyshkin ◽  
Ivan I. Kurilla
Keyword(s):  
United States ◽  
American Studies ◽  
Online Courses ◽  
The United States ◽  
State University ◽  
Quarter Century ◽  
Exchange Programs ◽  
Bilateral Relations ◽  
The Usa ◽  
Difficult Times

The article describes activities of the Center for American Studies “Americana” at Volgograd State University in 1995—2020. The authors analyze the conditions that made possible development of American studies in Volgograd in the second half of the 1990s, show what was possible with the limited resources available to the center, and what problems have become difficult for the work of “Americana” in recent years. Teaching Russian and American students, exchange programs and joint online courses, research, publications, “people's diplomacy”, organization of conferences and seminars, uniting historians, political scientists, philologists, linguists, philosophers, architects and other Volgograd scholars in the study of the countries of American continent, creating a network of colleagues and partners from many cities of Russia, as well as from the USA and Canada — looking back over this quarter of a century, we can say with confidence that the Center “Americana” has succeeded. Special attention in the article is paid to the cooperation of the center's historians with literary scholars and linguists who worked in other universities and research organizations. The authors note an institutional asymmetry in the study of Russia in the United States and the United States in Russia: American Russianists find more resources and opportunities in times of exacerbation of Russian — American relations, while Russian Americanists get better opportunities when relations between the two countries improve. Changes in bilateral relations also influenced the activities and capabilities of the Volgograd center. However, it continues to work actively, as shown by a large conference held in Volgograd in September 2020 and the release of the next, 16th issue of the collection Americana in the winter of the same year. This means that the groundwork created in the first 15 years of the research center's service in Volgograd is helping the new generation of Volgograd Americanists get through difficult times.

Ultraviolet Absorption of Refractory Elements by a Dual Laser Plasma Method

1988 ◽  
Vol 102 ◽  
pp. 243-246
Author(s):  
J.T. Costello ◽  
W.G. Lynam ◽  
P.K. Carroll
Keyword(s):  
Absorption Spectra ◽  
Laser Plasma ◽  
Optical Pulse ◽  
Ionic Species ◽  
Neutral Species ◽  
Plasma Method ◽  
Plasma Technique ◽  
Refractory Elements ◽  
Delay Times ◽  
Dual Laser

AbstractThe dual laser-produced plasma technique for the study of ionic absorption spectra has been developed by the use of two Q-switched ruby lasers to enable independent generation of the absorbing and back-lighting plasmas. Optical pulse handling is used in the coupling cicuits to enable reproducible pulse delays from 250 nsec. to 10 msec, to be achieved. At delay times > 700 nsec. spectra of essentially pure neutral species are observed. The technique is valuable, not only for obtaining the neutral spectra of highly refractory and/or corrosive materials but also for studying behaviour of ionic species as a function of time. Typical spectra are shown in Fig. 1.

Transfer optics for high spatial resolution electron spectroscopy

1988 ◽  
Vol 46 ◽  
pp. 666-667
Author(s):  
G. G. Hembree ◽  
Luo Chuan Hong ◽  
P.A. Bennett ◽  
J.A. Venables
Keyword(s):  
Magnetic Field ◽  
Scanning Transmission Electron Microscope ◽  
Low Energy ◽  
Objective Lens ◽  
State University ◽  
Arizona State University ◽  
Initial Field ◽  
Resolution Electron ◽  
Scanning Transmission ◽  
Low Energy Electrons

A new field emission scanning transmission electron microscope has been constructed for the NSF HREM facility at Arizona State University. The microscope is to be used for studies of surfaces, and incorporates several surface-related features, including provision for analysis of secondary and Auger electrons; these electrons are collected through the objective lens from either side of the sample, using the parallelizing action of the magnetic field. This collimates all the low energy electrons, which spiral in the high magnetic field. Given an initial field Bi∼1T, and a final (parallelizing) field Bf∼0.01T, all electrons emerge into a cone of semi-angle θf≤6°. The main practical problem in the way of using this well collimated beam of low energy (0-2keV) electrons is that it is travelling along the path of the (100keV) probing electron beam. To collect and analyze them, they must be deflected off the beam path with minimal effect on the probe position.

Ultrastructural Studies of Bovine Respiratory Disease Complex

1975 ◽  
Vol 33 ◽  
pp. 428-429
Author(s):  
James C.S. Kim
Keyword(s):  
Michigan State University ◽  
State University ◽  
Diagnostic Laboratory ◽  
Ultrastructural Studies ◽  
Bovine Respiratory Diseases ◽  
Etiologic Agents ◽  
Diagnostic Difficulties ◽  
The Subject ◽  
Capillary Walls ◽  
Alveolar Capillary

Bovine respiratory diseases cause serious economic loses and present diagnostic difficulties due to the variety of etiologic agents, predisposing conditions, parasites, viruses, bacteria and mycoplasma, and may be multiple or complicated. Several agents which have been isolated from the abnormal lungs are still the subject of controversy and uncertainty. These include adenoviruses, rhinoviruses, syncytial viruses, herpesviruses, picornaviruses, mycoplasma, chlamydiae and Haemophilus somnus.Previously, we have studied four typical cases of bovine pneumonia obtained from the Michigan State University Veterinary Diagnostic Laboratory to elucidate this complex syndrome by electron microscopy. More recently, additional cases examined reveal electron opaque immune deposits which were demonstrable on the alveolar capillary walls, laminae of alveolar capillaries, subenthothelium and interstitium in four out of 10 cases. In other tissue collected, unlike other previous studies, bacterial organisms have been found in association with acute suppurative bronchopneumonia.

Outreach Opportunities Using the Instructional SEM at Iowa State University

1996 ◽  
Vol 54 ◽  
pp. 412-413
Author(s):  
L. S. Chumbley ◽  
M. Meyer ◽  
K. Fredrickson ◽  
F.C. Laabs
Keyword(s):  
Materials Science ◽  
State University ◽  
Digital Cameras ◽  
Audio Signals ◽  
Iowa State University ◽  
Cornell University ◽  
Sem Image ◽  
Local Schools ◽  
Materials Science And Engineering ◽  
Video And Audio

The development of a scanning electron microscope (SEM) suitable for instructional purposes has created a large number of outreach opportunities for the Materials Science and Engineering (MSE) Department at Iowa State University. Several collaborative efforts are presently underway with local schools and the Department of Curriculum and Instruction (C&I) at ISU to bring SEM technology into the classroom in a near live-time, interactive manner. The SEM laboratory is shown in Figure 1.Interactions between the laboratory and the classroom use inexpensive digital cameras and shareware called CU-SeeMe, Figure 2. Developed by Cornell University and available over the internet, CUSeeMe provides inexpensive video conferencing capabilities. The software allows video and audio signals from Quikcam™ cameras to be sent and received between computers. A reflector site has been established in the MSE department that allows eight different computers to be interconnected simultaneously. This arrangement allows us to demonstrate SEM principles in the classroom. An Apple Macintosh has been configured to allow the SEM image to be seen using CU-SeeMe.

The Instructional SEM Laboratory at Iowa State University

1996 ◽  
Vol 54 ◽  
pp. 396-397
Author(s):  
L. S. Chumbley ◽  
M. Meyer ◽  
K. Fredrickson ◽  
F.C. Laabs
Keyword(s):  
Materials Science ◽  
Computer Network ◽  
Energy Dispersive Spectrometer ◽  
Computer Control ◽  
State University ◽  
Iowa State University ◽  
Internet Server ◽  
Schematic Layout ◽  
Hands On ◽  
Improve Instruction

The Materials Science Department at Iowa State University has developed a laboratory designed to improve instruction in the use of the scanning electron microscope (SEM). The laboratory makes use of a computer network and a series of remote workstations in a classroom setting to provide students with increased hands-on access to the SEM. The laboratory has also been equipped such that distance learning via the internet can be achieved.A view of the laboratory is shown in Figure 1. The laboratory consists of a JEOL 6100 SEM, a Macintosh Quadra computer that acts as a server for the network and controls the energy dispersive spectrometer (EDS), four Macintosh computers that act as remote workstations, and a fifth Macintosh that acts as an internet server. A schematic layout of the classroom is shown in Figure 2. The workstations are connected directly to the SEM to allow joystick and computer control of the microscope. An ethernet connection between the Quadra and the workstations allows students seated there to operate the EDS. Control of the microscope and joystick is passed between the workstations by a switch-box assembly that resides at the microscope console. When the switch-box assembly is activated a direct serial line is established between the specified workstation and the microscope via the SEM’s RS-232.

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