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| 1 | S-100B protects cultured neuron against glutamate and stauro sprorine-induced dam age and is involved in the antiapoptotic action of the 5-HT1 a-receptor agonist显示文摘 | AMLEMEYER B BEIER H SEMKOVAL | 2000 | Brain Res2000，858，： | 1 |
| 2 | Cleaner flue gas and energy recovery through pinch analysis显示文摘 | Zhelev T K Semkov K A | 2004 | Journal of Cleaner Production2004，12，2： | 1 |
| 3 | Mathematical modeling of gas distribution in packed columns显示文摘 | Semkov K Dodev C | 2003 | Chemical Engineering and Processing2003，42，11： | 1 |
| 4 | Ciliary neurotrophic factor enhances the expression of NGF and p75 low-affinity NGF receptor in astrocytes显示文摘 | Semkoval I Krieglstein J | 1999 | Brain Res1999，838，12： | 1 |
| 5 | Cleaner flue gas and energy recovery through pinch analysis显示文摘 | ZHELEV T K SEMKOV K A | 2003 | Journal of Cleaner Production2003，12，2： | 1 |
| 6 | Cleaner flue gas and energy recovery through pinch analysis显示文摘 | Zhelev T K Semkov K A | 2004 | Journal of Cleaner Production2004，12，2： | 1 |
| 7 | S-100β protects cultured neuron against glutamate and stauro sprorine- induced damage and is involved in the antiapoptotic action of the 5-HT1 a-receptor agonist显示文摘 | Amlemeyer B Beier H Semkoval | 2000 | Brain Res2000，858，： | 1 |
| 8 | S-100B protects cultured neuron against glutamate and stauro sprorine-induced damage and is involved in the antiapoptotic action of the 5-HT 1 a-receptor agonist显示文摘 | Ahlemeyer B Beier H Semkoval | 2000 | Brain Res2000，858，1： | 1 |
| 9 | Cleaner flue gas and energy recovery through pinch analysis显示文摘 | ZHELEV T K SEMKOV K A | | 0，，2： | 1 |
| 10 | Cleaner flue gas and energy recovery through pinch analysis显示文摘 | ZHELEV T K SEMKOV K A | 2003 | Journal of Cleaner Production2003，12，2： | 1 |
| 11 | Cleaner flue gas and energy recovery through pinch analysis 显示文摘 | Zhelev T K Semkov K A | 2004 | Cleaner Production2004，12，： | 1 |
| 12 | Butyl acetate and butanol stripping from waste waters in antibiotic production显示文摘 | Kolev N Darakchiev R Semkov K | 1996 | Water Research1996，30，： | 1 |
| 13 | Neuroprotection mediated via neurotrophic factors and induction of neurotrophic factors显示文摘 | Semkove I Krieglstein J | 1999 | Brain Res Brain Res Rev1999，30，2： | 1 |
| 14 | Butyl acetate and butanol striping fromwaste water in antibiotic production显示文摘 | Kolev N Darakchiev R Semkov K | 1996 | Technical Note1996，30，5： | 1 |
| 15 | Mathematical modeling of gas distribution in packed columns显示文摘 | Petrova T Semkov K Dodev C | 2003 | Chemical Engineering and Processing2003，42，11： | 1 |
| 16 | Neuroprotection mediated via neurotrophic factors and induction of neurotrophic factors显示文摘 | Semkoval KrieglsteinJ | 1999 | Brain Res Rev1999，30，2： | 1 |
| 17 | Long-term V(RI) CCD photometry of pre-main-sequence stars in the association Cepheus OB3显示文摘Results from optical CCD photometric observations of 13 pre-main-sequence stars collected during the period from February 2007 to November 2020 are presented.These stars are located in the association Cepheus OB3,in the field of the young star V733 Cephei.Photometric observations,especially concerning the long-term variability of the stars,are missing in the literature.We present the first longterm V(RI)c monitoring for them,that cover 13 years.Results from our study indicate that all of the investigated stars manifest strong photometric variability.The presented paper is a part of our program for the photometric study of pre-main-sequence stars located in active star-forming regions. | Sunay Ibryamov Gabriela Zidarova Evgeni Semkov Stoyanka Peneva | 2021 | Research in Astronomy and Astrophysics2021，21，8： | 0 |
| 18 | Long-term Photometric Study of the Pre-main Sequence Star V1180 Cas显示文摘In this paper results from the optical photometric observations of the pre-main sequence star V1180 Cas are reported.The star is a young variable associated with the dark cloud Lynds 1340,located at a distance of 600 pc from the Sun in the star-forming region in Cassiopeia.V1180 Cas shows large amplitude variability,interpreted as a combination of accretion-induced and extinction-driven effects.Our data from VRI CCD photometric observations of the star were collected from September 2011 to February 2022.During our monitoring,we recorded several brightness dips with large amplitudes of up to 5 mag(I band).At the same time,increases in brightness over periods of several weeks have also been recorded.In this paper,we compare the photometric data obtained for V1180 Cas with observations of other low-mass pre-main sequence objects. | Asen Mutafov Evgeni Semkov Stoyanka Peneva Sunay Ibryamov | 2022 | Research in Astronomy and Astrophysics2022，22，12： | 0 |
| 19 | Long-term photometric behavior of the PMS stars V977 Cep and V982 Cep in the vicinity of NGC 7129显示文摘Long-term BV RI photometric light curves of the pre-main sequence stars V977 Cep and V982 Cep during the period from 2000 October to 2016 August are presented. The stars are located in the vicinity of the reflection nebula NGC 7129. Our photometric data show that both stars exhibit strong photometric variability in all optical passbands, which is typical for Classical T Tauri stars. Using our observational data we analyze the reasons for the observed brightness variations. In the case of V977 Cep we identify previously unknown periodicity in its light curve. | Sunay I. Ibryamov Evgeni H. Semkov Teodor R. Milanov Stoyanka P. Peneva | 2017 | Research in Astronomy and Astrophysics2017，17，2： | 0 |
| 20 | BV(RI )c photometric study of three variable PMS stars in the field of V733 Cephei显示文摘This paper reports results from the first long-term BV(RI)c photometric CCD observations of three variable pre-main-sequence stars collected during the period from February 2007 to January 2020. The investigated stars are located in the field of the PMS star V733 Cep within the Cepheus OB3 association. All stars from our study show rapid photometric variability in all-optical passbands. In this paper, we describe and discuss the photometric behavior of these stars and the possible reasons for their variability. In the light variation of two of the stars, we found periodicity. | Sunay Ibryamov Evgeni Semkov Stoyanka Peneva Kristina Gocheva | 2020 | Research in Astronomy and Astrophysics2020，20，12： | 0 |
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