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Beilstein Journal of Organic Chemistry, ISSN 1860-5397, 10/2018, Volume 14, Issue 1, pp. 2602 - 2606
Ethylenediamine-derived beta-enamino amides are used as equivalents of amide enolate synthons in C-acylation reactions with N-protected amino acids. Domino... 
C-acylation | Retro-mannich | Amino acids | Enaminones | Keto amides | Enamines | Domino reaction | KETOAMIDES | retro-Mannich | amino acids | STEREOCHEMISTRY | CHEMISTRY, ORGANIC | enaminones | AMINO-ACID | enamines | keto amides | PEPTIDES | NITRILES | KINETIC RESOLUTION | CHLORIDES | KETONITRILES | INHIBITORS | domino reaction | DERIVATIVES
Journal Article
Tetrahedron Letters, ISSN 0040-4039, 12/2017, Volume 58, Issue 51, p. 4776
To access, purchase, authenticate, or subscribe to the full-text of this article, please visit this link: http://dx.doi.org/10.1016/j.tetlet.2017.11.023 A... 
Amino acids | Amides | Acylation
Journal Article
Tetrahedron Letters, ISSN 0040-4039, 12/2017, Volume 58, Issue 51, pp. 4776 - 4778
A novel approach for the synthesis of enamine derivatives of -protected 3-acyltetramic acids is described. The synthetic procedure relies on α- -acylation of... 
Tetramic acids | Amino acids | C-Acylation | Enaminones | Enamines | FUNGUS | BIOLOGICAL-ACTIVITY | CHEMISTRY, ORGANIC
Journal Article
Analog Integrated Circuits and Signal Processing, ISSN 0925-1030, 3/2019, Volume 98, Issue 3, pp. 441 - 451
Journal Article
Journal Article
Land Forces Academy Review, ISSN 2247-840X, 03/2018, Volume 23, Issue 1, pp. 53 - 57
In recent decades, the question of freedom in market society and responsibility in the behavior of market players has been raised again. Usually, in the public... 
negative freedom | positive freedom
Journal Article
2018, ISBN 6197246198, 448
Proceedings of the Annual International Scientific Conference of the Aviation Faculty of the National Military University "Vasil Levski" - Dolna Mitropolia, 19... 
Geography, Regional studies | Politics | Political Sciences | Social Sciences | Economy
eBook
Scientific Bulletin, ISSN 1224-5178, 12/2016, Volume 21, Issue 2, pp. 97 - 101
Extreme social environment is an intricate set of internal and external environmental factors resulting from the occurrence of contradictions and conflicts in... 
Extreme social environment | professional readiness
Journal Article
2017 IEEE Nordic Circuits and Systems Conference (NORCAS): NORCHIP and International Symposium of System-on-Chip (SoC), 10/2017, Volume 2017-, pp. 1 - 4
Many integrated circuit functional blocks, such as data and power converters, require timing and control signals consisting of complex sequences of pulses.... 
Ring oscillators | Power demand | ultralow power | SAR ADC | timing generation | clock | Logic gates | state machine | low power | Delays | sequence generation | ring oscillator | Clocks
Conference Proceeding
03/2018
Многофункционална патерица, която съдържа модули за подмишнична патерица, подлакътна патерица и бастун и се характеризира с това, че съдържа още модул за... 
Patent
2017 IEEE Nordic Circuits and Systems Conference (NORCAS): NORCHIP and International Symposium of System-on-Chip (SoC), 10/2017, Volume 2017-, pp. 1 - 5
This paper presents three self-oscillating multilevel time-interleaved switched-capacitor DC/DC converters implemented and taped-out in 0.18-μm CMOS targeting... 
Voltage measurement | Capacitors | DC-DC power converter | Delays | Energy harvesting | Switched-capacitor | Voltage control | Video recording | Oscillators
Conference Proceeding
by Kazandzhieva, Tanya and Haralampiev, Mihail and Kolarova, Tsetska and Boradzhieva, Elena and Petkova, Ekaterina and Stoyanova, Katya and Al-Khalil, Dalia Jaser and Nyagolova, Mariyana and Georgieva, Anna and Nikolova, Anelia and Granitzka, Vyara and Stoyanova, Aneta and Petkov, Rosen and Ivanova, Kalina and Atanasova, Daniela and Stefanov, Stefan and Stoyanov, Svetlozar and Georgieva, Milena and Kaseva, Eva and Krastev, Velcho and Ivanova, Evgenia I and Yordanov, Yordan and Dimov, Todor and Hristova, Nina and Nikolchev, Dilian and Rogozensky, Victor and Robov, Mirko and Klimukova, Nikolinka and Ivanov, Doncho and Burcea, Raluca Gabriela and Petrova, Svetla and Tachev, Anton and Christova-Bagdassarian, Valentina and Gyurova, Desislava and Ivanova, Mihaela and Pavlova, Vera and Mitreva, Maria and Georgieva, Rositsa and Enikova, Rositsa and Dimitrova, Savina and Mavrodieva, Emilia and Stoyneva-Gertner, Maya and Uzunov, Blagoy and Dimitrova, Petya and Stefanov, Ivan and Tasheva, Radostina and Ivanov, Milen and Neshev, Ivailo and Yankov, Yavor and Nikolov, Nikolay and Grigorov, Rumen and Ninov, Marian and Krastev, Krastyu and Angelov, Pavel and Dimitrov, Ivan and Valchev, Stoyan and Dikova, Petia and Dolchinkov, Nikolay and Hvostova, Marina and Lilyanova, Stelena and Padarev, Nikolay and Ivanov, Stefan and Lazarov, Lazar and Georgiev, Georgi and Petrov, Plamen and Grozdanova, Teodora and Radulov, Nikolay and Dimitrov, Mihael and Atanasov, Plamen and Nedkov, Rumen and Nikolov, Ivaylo and Stoychev, Tihomir and Ivanova, Galina and Hadzhiyski, Deyan and Metodieva, Tsvetelina and Vasileva, Rumyana and Dosev, Nikolay and Kazakov, Konstantin and Petkov, Gosho and Mitevska-Encheva, Mayiana and Lazarov, Vladislav and Teodosiev, Plamen and Yonchev, Dimitar and Sidova, Dafinka and Karolewski, Albert and Rejman-Karolewska, Małgorzata and Chupetlovski, Stamen and Morfov, Stanislav and Minchev, Plamen and Spasov, Kolio and Zlatev, Borislav and Ivanov, Hristo and Sabotinova, Diana and Pencheva, Ivalinka and Stoyanov, Stanimir and Marinova, Nadya Ivanova and Rusev, Rusi and Andreeva, Andreana and Simeonova, Valya and Bosakov, Vesselin and ...
2018, ISBN 6197246201, 1765
Proceedings of the Annual University Scientific Conference 2018 of the National Military University "Vasil Levski" - Veliko Tarnovo, 14 - 15 June 2018 - 9... 
Geography, Regional studies | Political Sciences | Social Sciences | Economy | Politics
eBook
2014 Proceedings of the 21st International Conference Mixed Design of Integrated Circuits and Systems (MIXDES), 06/2014, pp. 185 - 188
The paper presents the design of a single-ended amplifier in 1.8 V, 180 nm CMOS process for buffering the reference voltage in a 10-bit 1-MS/s... 
Noise | Capacitors | Switches | SAR ADC | Capacitance | Topology | reference voltage buffer | Gain | Clocks | Reference voltage buffer
Conference Proceeding
2016 Third International Conference on Artificial Intelligence and Pattern Recognition (AIPR), 09/2016, pp. 1 - 5
In this article the effectiveness of one of the main methods for assisting the information search in large data sets is analyzed, namely the method based on... 
databases | Symmetric matrices | data sets optimization | Search methods | Libraries | Arrays | Information technology | Dispersion | Information systems | Databases | Data sets optimization
Conference Proceeding
2017 IEEE Nordic Circuits and Systems Conference (NORCAS): NORCHIP and International Symposium of System-on-Chip (SoC), 10/2017, Volume 2017-, pp. 1 - 6
Energy harvesting is a method that extracts electrical energy from the environment. This paper presents an integrated circuit in 0.35-μm CMOS that harvests... 
offset compensation | Switches | piezoelectric transducer | Shunts (electrical) | comparator | Microprocessors | harvesting | Piezoelectric transducers | Computer architecture | zero crossing detection | low power | Delays | Transistors
Conference Proceeding
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