I. G. Gachev: search on Z-Library

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1

[IEEE 2019 International Vacuum Electronics Conference (IVEC) - Busan, Korea (South) (2019.4.28-2019.5.1)] 2019 International Vacuum Electronics Conference (IVEC) - Experiments on W-band High-Gain Helical-Waveguide Gyro-TWT

Samsonov, S.V., Bogdashov, A.A., Denisov, G.G., Gachev, I.G.

Year:

2019

Language:

english

File:

PDF, 946 KB

english, 2019

2

Cascade of Two $W$ -Band Helical-Waveguide Gyro-TWTs With High Gain and Output Power: Concept and Modeling

Samsonov, Sergey V., Bogdashov, Alexander A., Denisov, Gregory G., Gachev, Igor G., Mishakin, Sergey V.

Journal:

IEEE Transactions on Electron Devices

Year:

2017

Language:

english

File:

PDF, 877 KB

english, 2017

3

[IEEE IEEE EUROCON 2011 - International Conference on Computer as a Tool - Lisbon (2011.04.27-2011.04.29)] 2011 IEEE EUROCON - International Conference on Computer as a Tool - An interdisciplinary masters program in microwave communication focused on innovation: (Attracting and developing students' talent in challenging times)

Dankov, P. I., Nesheva, E. I., Neshev, N. N., Gachev, M. G.

Year:

2011

Language:

english

File:

PDF, 258 KB

english, 2011

4

CW Operation of a W-Band High-Gain Helical-Waveguide Gyrotron Traveling-Wave Tube

Samsonov, Sergey V., Denisov, Gregory G., Gachev, Igor G., Bogdashov, Alexander A.

Journal:

IEEE Electron Device Letters

Year:

2020

File:

PDF, 1.21 MB

2020

5

Studies of a Gyrotron Traveling-Wave Tube with Helically Corrugated Waveguides at IAP Ras: Results and Prospects

Samsonov, S. V., Bogdashov, A. A., Gachev, I. G., Denisov, G. G.

Journal:

Radiophysics and Quantum Electronics

Year:

2020

File:

PDF, 1.09 MB

2020

6

Small glaciers in Pirin (Bulgaria) and Durmitor (Montenegro) as glacio-karstic features. Similarities and differences in their recent behaviour

Gachev, Emil, Mitkov, Ilia

Journal:

Quaternary International

Year:

2018

Language:

english

File:

PDF, 8.20 MB

english, 2018

7

SPIE Proceedings [SPIE SPIE's 1995 International Symposium on Optical Science, Engineering, and Instrumentation - San Diego, CA (Sunday 9 July 1995)] Intense Microwave Pulses III - Experimental study of high-power Ka-band second-harmonic gyroklystron amplifier

Sokolov, Evgeny V., Gachev, Igor G., Zasypkin, Evgeny V., Antakov, Igor I., Brandt, Howard E.

Year:

1995

Language:

english

File:

PDF, 547 KB

english, 1995

8

[IEEE 2007 Joint 32nd International Conference on Infrared and Millimeter Waves and the 15th International Conference on Terahertz Electronics (IRMMW-THz) - Cardiff (2007.9.2-2007.9.9)] 2007 Joint 32nd International Conference on Infrared and Millimeter Waves and the 15th International Conference on Terahertz Electronics - High-harmonic gyrodevices with frequency multiplication

Bandurkin, I.V., Bratman, V.L., Denisov, G.G., Gachev, I.G., Kalynov, Y.K., Savilov, A.V.

Year:

2007

Language:

english

File:

PDF, 182 KB

english, 2007

9

Experimental study of a W-band Gyroklystron amplifier operated in the high-order TE021cavity mode

E. V. Zasypkin, I. G. Gachev, I. I. Antakov

Journal:

Radiophysics and Quantum Electronics

Year:

2012

Language:

english

File:

PDF, 193 KB

english, 2012

10

[IEEE 2000 25th International Conference on Infrared and Millimeter Waves Conference Digest - Beijing, China (12-15 Sept. 2000)] 25th International Conference on Infrared and Millimeter Waves (Cat. No.00EX442) - Status of a W-band pulsed 200 kW gyroklystron experiment

Gachev, I.G., Antakov, I.I., Zasypkin, E.V.

Year:

2000

Language:

english

File:

PDF, 124 KB

english, 2000

11

Autoregulation of regional cerebral blood flow in cortex and thalamus in cats: effects of nimodipine and flunarizine

V. Vlahov, E. Gachev

Journal:

European Journal of Pharmacology

Year:

1990

Language:

english

File:

PDF, 248 KB

english, 1990

12

Starting a programme for research and monitoring of sediment transfer processes in the periglacial zone of Bulgaria (Bulgarian Periglacial Programme)

Gachev, Emil M.

Journal:

Norsk Geografisk Tidsskrift / Norwegian Journal of Geography

Year:

2008

Language:

english

File:

PDF, 162 KB

english, 2008

13

[IEEE 2017 Eighteenth International Vacuum Electronics Conference (IVEC) - London, United Kingdom (2017.4.24-2017.4.26)] 2017 Eighteenth International Vacuum Electronics Conference (IVEC) - W-band helical-waveguide gyro-TWTs yielding high gain and high output power: Design and simulations

Samsonov, S. V., Bogdashov, A. A., Denisov, G. G., Gachev, I. G., Mishakin, S. V., Manuilov, V. N.

Year:

2017

Language:

english

File:

PDF, 396 KB

english, 2017

14

Glaciation in the Rila mountains (Bulgaria) during the Last Glacial Maximum

Kuhlemann, Joachim, Gachev, Emil, Gikov, Alexander, Nedkov, Stoyan, Krumrei, Ingrid, Kubik, Peter

Journal:

Quaternary International

Year:

2013

Language:

english

File:

PDF, 2.25 MB

english, 2013

15

High-Power Ka-Band Transmission Line with a Frequency Bandwidth of 1 GHZ

Bogdashov, A. A., Denisov, G. G., Samsonov, S. V., Gachev, I. G., Dominyuk, Ya. V., Murzin, V. N., Levitan, B. A.

Journal:

Radiophysics and Quantum Electronics

Year:

2016

Language:

english

File:

PDF, 1.51 MB

english, 2016

16

Study of high-power Ka-band second-harmonic gyroklystron amplifier

Zasypkin, E.V., Moiseev, M.A., Gachev, I.G., Antakov, I.I.

Journal:

IEEE Transactions on Plasma Science

Year:

1996

Language:

english

File:

PDF, 536 KB

english, 1996

17

Ka-Band Gyrotron Traveling-Wave Tubes With the Highest Continuous-Wave and Average Power

Samsonov, Sergey V., Gachev, Igor G., Denisov, Gregory G., Bogdashov, Alexander A., Mishakin, Sergey V., Fiks, Alexander S., Soluyanova, Elena A., Tai, Evgeny M., Dominyuk, Yaroslav V., Levitan, Boris

Journal:

IEEE Transactions on Electron Devices

Year:

2014

Language:

english

File:

PDF, 701 KB

english, 2014

18

Proof-of-Principle Experiment on High-Power Gyrotron Traveling-Wave Tube With a Microwave System for Driving and Extracting Power Through One Window

Samsonov, Sergey V., Bogdashov, Alexander A., Gachev, Igor G., Denisov, Gregory G., Mishakin, Sergey V.

Journal:

IEEE Microwave and Wireless Components Letters

Year:

2016

Language:

english

File:

PDF, 513 KB

english, 2016

19

A quasi-optical input for a whispering-gallery-mode gyro-twystron

Filchenkov, S., Gachev, I., Goikhman, M., Guznov, Yu., Lukovnikov, D., Tsvetkov, A., Litvak, A.G.

Journal:

EPJ Web of Conferences

Year:

2017

Language:

english

File:

PDF, 82 KB

english, 2017

20

[IEEE 2014 8th European Conference on Antennas and Propagation (EuCAP) - The Hague, Netherlands (2014.4.6-2014.4.11)] The 8th European Conference on Antennas and Propagation (EuCAP 2014) - On-the-move antenna systems for broad-band satellite communications

Gachev, Mario, Boyanov, Victor, Kamenopolsky, Stanimir, Peshlov, Vesselin, Marinov, Borislav, Dankov, Plamen

Year:

2014

Language:

english

File:

PDF, 902 KB

english, 2014

21

[IEEE The Joint 30th International Conference on Infrared and Millimeter Waves - Williamsburg, VA, USA (19-23 Sept. 2005)] 2005 Joint 30th International Conference on Infrared and Millimeter Waves and 13th International Conference on Terahertz Electronics - Studying of the 95/285 GHz gyrotron with frequency multiplication

Denisov, G.G., Antakov, I.I., Gachev, I.G., Lygin, V.K., Sokolov, E.V., Zasypkin, E.V.

Year:

2005

Language:

english

File:

PDF, 367 KB

english, 2005

22

New Radiation Input/Output Systems for Millimeter-Wave Gyrotron Traveling-Wave Tubes

Denisov, G. G., Bogdashov, A. A., Gachev, I. G., Mishakin, S. V., Samsonov, S. V.

Journal:

Radiophysics and Quantum Electronics

Year:

2016

Language:

english

File:

PDF, 489 KB

english, 2016

23

The Influence of Initial Electron Velocities Distribution on the Energy Spectra of the Spent Electron Beam in Gyrotron

I. G. Gachev, M. Yu. Glyavin, V. N. Manuilov, M. V. Morozkin, N. A. Zavolsky

Journal:

Journal of Infrared, Millimeter and Terahertz Waves

Year:

2010

Language:

english

File:

PDF, 125 KB

english, 2010

24

COVIDâ19 infection in patients on antiâcomplement therapy: The Leeds National Paroxysmal Nocturnal Haemoglobinuria service experience

Pike, Alexandra, Muus, Petra, Munir, Tahla, Mitchell, Lindsay, Arnold, Louise, Riley, Kathryn, Houghton, Nicola, Forrest, Briony, Gachev, Jeanifer, Hillmen, Peter, Griffin, Morag

Journal:

British Journal of Haematology

Year:

2020

File:

PDF, 162 KB

2020

25

I Marvel at America

Gachev, Georgii

Journal:

Russian Politics and Law

Year:

1994

Language:

english

File:

PDF, 1.05 MB

english, 1994

26

Evaluating the error contributed by magnetic recording in reproducing frequency converter signals

A. G. Kul'gachev, A. A. Dogadov, V. A. Gamii, Yu. F. Zin'kovskii

Journal:

Measurement Techniques

Year:

1970

Language:

english

File:

PDF, 340 KB

english, 1970

27

Self-excitation of spurious oscillations in the drift region of gyrotrons and their influence on gyrotron operation

Antakov, I.I., Gachev, I.G., Zasypkin, E.V.

Journal:

IEEE Transactions on Plasma Science

Year:

1994

Language:

english

File:

PDF, 423 KB

english, 1994

28

SPIE Proceedings [SPIE SPIE's 1995 International Symposium on Optical Science, Engineering, and Instrumentation - San Diego, CA (Sunday 9 July 1995)] Intense Microwave Pulses III - Experimental study of a two-cavity gyrotron with feedback between cavities

Antakov, Igor I., Gachev, Igor G., Sokolov, Evgeny V., Brandt, Howard E.

Year:

1995

Language:

english

File:

PDF, 487 KB

english, 1995

29

[IEEE 2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) - Paris, France (2019.9.1-2019.9.6)] 2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) - Gyro-TWTs with Helically Corrugated Waveguides: Overview of the Main Principles

Denisov, G. G., Bogdashov, A. A., Gachev, I. G., Samsonov, S. V.

Year:

2019

Language:

english

File:

PDF, 193 KB

english, 2019

30

[IEEE 2014 8th European Conference on Antennas and Propagation (EuCAP) - The Hague, Netherlands (2014.4.6-2014.4.11)] The 8th European Conference on Antennas and Propagation (EuCAP 2014) - Electronically beam steerable antennas for broadband satellite communications

Kaplan, Ilan, Marinov, Izhar, Gal, Avi, Peshlov, Vesselin, Gachev, Mario, Boyanov, Victor, Marinov, Borislav

Year:

2014

Language:

english

File:

PDF, 568 KB

english, 2014

31

An Arsenal of Good Will

Journal:

Russian Studies in Literature

Year:

1988

Language:

english

File:

PDF, 1.18 MB

english, 1988

32

Experimental studies of a gyroklystron operating in the field of a permanent magnet

I. I. Antakov, I. G. Gachev, E.V. Zasypkin

Journal:

Radiophysics and Quantum Electronics

Year:

2011

Language:

english

File:

PDF, 586 KB

english, 2011

33

[IEEE 2019 International Vacuum Electronics Conference (IVEC) - Busan, Korea (South) (2019.4.28-2019.5.1)] 2019 International Vacuum Electronics Conference (IVEC) - Experiments on W-band High-Gain Helical-Waveguide Gyro-TWT

Samsonov, S.V., Bogdashov, A.A., Denisov, G.G., Gachev, I.G.

Year:

2019

File:

PDF, 946 KB

2019

34

CW Multifrequency K-Band Source Based on a Helical-Waveguide Gyro-TWT With Delayed Feedback

Rozental, Roman M., Samsonov, Sergey V., Gachev, Igor G., Glyavin, Mikhail Yu., Bogdashov, Alexander A., Mansfeld, Dmitry A., Vodopyanov, Alexander V.

Journal:

IEEE Transactions on Electron Devices

Year:

2020

File:

PDF, 1.11 MB

2020

35

[IEEE >2006 Joint 31st International Conference on Infrared Millimeter Waves and 14th International Conference on Teraherz Electronics - Shanghai, China (2006.09.18-2006.09.22)] 2006 Joint 31st International Conference on Infrared Millimeter Waves and 14th International Conference on Teraherz Electronics - New Schemes of High-harmonic Gyro-devices with Frequency Multiplication

Bandurkin, I.V., Bratman, V.L., Denisov, G.G., Gachev, I.G., Kalynov, Yu.K., Savilov, A.V.

Year:

2006

Language:

english

File:

PDF, 1.22 MB

english, 2006

36

Small glaciers on the Balkan Peninsula: State and changes in the last several years

Gachev, Emil, Stoyanov, Krasimir, Gikov, Alexander

Journal:

Quaternary International

Year:

2016

Language:

english

File:

PDF, 13.83 MB

english, 2016

37

Development of a high-power pulsed subterahertz gyrotron for remote detection of sources of ionizing radiation

M. Yu. Glyavin, A. G. Luchinin, V. N. Manuilov, M. V. Morozkin, A. A. Bogdashov, I. G. Gachev, A. S. Sedov, P. Pu, G. S. Nusinovich, V. L.Granatshtein

Journal:

Radiophysics and Quantum Electronics

Year:

2012

Language:

english

File:

PDF, 239 KB

english, 2012

38

CW Ka-Band Kilowatt-Level Helical-Waveguide Gyro-TWT

Samsonov, S. V., Denisov, G. G., Gachev, I. G., Eremeev, A. G., Fiks, A. S., Kholoptsev, V. V., Kalynova, G. I., Manuilov, V. N., Mishakin, S. V., Sokolov, E. V.

Journal:

IEEE Transactions on Electron Devices

Year:

2012

Language:

english

File:

PDF, 720 KB

english, 2012

39

[IEEE Trans Black Sea Region Symposium on Applied Electromagnetism - Hellas, Greece (17-19 April 1996)] Trans Black Sea Region Symposium on Applied Electromagnetism - Technological gyrotrons

Antakov, I.A., Flyagin, V.A., Gachev, I.G., Kuftin, A.N., Kurbatov, V.I., Lygin, V.K., Luchinin, A.G., Malygin, O.V., Manuilov, V.N., Soluyanova, E.A., Tsimring, Sh.B., Zapevalov, V.E., Zasypkin, E.V.

Year:

1996

Language:

english

File:

PDF, 71 KB

english, 1996

40

[IEEE 2016 41st International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz) - Copenhagen, Denmark (2016.9.25-2016.9.30)] 2016 41st International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz) - Recent experiments and simulations on gyro-TWTs with helically corrugated waveguides

Samsonov, S. V., Bogdashov, A. A., Denisov, G. G., Gachev, I. G., Mishakin, S. V.

Year:

2016

Language:

english

File:

PDF, 362 KB

english, 2016

41

On one mechanism of spurious oscillations in high-power gyrotrons

I. I. Antakov, I. G. Gachev, E. V. Zasypkin

Journal:

Radiophysics and Quantum Electronics

Year:

1994

Language:

english

File:

PDF, 552 KB

english, 1994

42

[IEEE 2009 34th International Conference on Infrared, Millimeter, and Terahertz Waves (IORMMW-THz 2009) - Busan, South Korea (2009.09.21-2009.09.25)] 2009 34th International Conference on Infrared, Millimeter, and Terahertz Waves - Development of helical-waveguide gyro-TWT and gyro-BWO

Samsonov, S. V., Denisov, G. G., Gachev, I. G., Kalynova, G. I., Manuilov, V. N., Mishakin, S. V., Bykov, Yu. V., Eremeev, A. G., Holoptsev, V. V.

Year:

2009

Language:

english

File:

PDF, 283 KB

english, 2009

43

Andrei Siniavskii—Abram Tertz and His Novel Goodnight!

Gachev, Georgii

Journal:

Russian Studies in Literature

Year:

1991

Language:

english

File:

PDF, 1.15 MB

english, 1991

44

A Magneto-Armored Warm-Solenoid Based System for K-Band Gyrodevices

Proyavin, M. D., Manuilov, V. N., Gachev, I. G., Maslov, V. V., Morozkin, M. V., Kuftin, A. N., Tai, E. M., Glyavin, M. Yu.

Journal:

Instruments and Experimental Techniques

Year:

2020

File:

PDF, 782 KB

2020

45

Holocene glaciation in the mountains of Bulgaria

Journal:

Mediterranean Geoscience Reviews

Year:

2020

File:

PDF, 2.27 MB

2020

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