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16篇 您的检索式:作者名="Lyubenova"
    题名 作者 年代 出处 被引量
1SeleniumSpecies in the Roots and Shoots of Chickpea Plants Treatedwith Different Concentrations of Sodium Selenite 显示文摘Lyubenova L Sahorlash X Schroder P 2015Environ Sci Pollut Res Int2015,22,16:1
2Do heavy metals and metalloids influence the detoxification of organic xenobiotics in plants?显示文摘Peter Schr?der Lyudmila Lyubenova Christian Huber 2009Environmental Science and Pollution Research2009,,7:1
3Metal accu- mulation and response of antioxidant enzymes in seedlings and adult sunflower mutants with improved metal removal traits on a metal-contaminated soil显示文摘Nehnevajova E Lyubenova L Herzig R 2012Environmental & Ex- perimental Botany2012,,76:1
4Metal accumulation and response of antioxidant enzymes in seedlings and a- dult sunflower mutants with improved metal removal traits on a metal-contaminated soil显示文摘Nehnevajova E Lyubenova L Herzig R 2012Environmental and Experimental Botany2012,76,2:1
5Influence of human factors on population of Taxus baccataL显示文摘Lyubenova M Nedelchev R 2001Journal of Balkan Ecology2001,4,:1
6Ceramic Pigments with Sphene Structure Obtained by Both Spray and Freeze-drying Techniques 显示文摘Stoyanova Lyubenova T Matteucci F Costa A 2009Powder Technology2009,193,:1
7Do heavy metals and metalloids influence the detoxiflcation of organic xenobiotics in plants? 显示文摘SCHRODER P LYUBENOVA L HUBER C 2009Environmental Science and Pollution Research2009,16,7:1
8Mg-Ni-RE nanocrystalline alloys for hydrogen storage显示文摘SPASSOV T LYUBENOVA L KOSTER U 2004Materials Science and Engineering2004,,:1
9Plants for waste watertreatment Effects of heavy metalson the detoxificationsystem of Typhalatifolia 显示文摘LYUBENOVA L SCHRODER P 2011Bioresource Technology2011,102,2:1
10Mg - Ni - RE nanocrystalline alloys for hydrogen storage 显示文摘SPASSOY T LYUBENOVA L KOSTER U 2004Materials Science and Engineering2004,,:1
11Ceramic pig-ments with sphene structure obtained by both spray-andfreeze-drying techniques显示文摘Lyubenova T S Matteucci F Costa A 2009Powder Technology2009,193,1:1
12The catalytic effect of Nb2O5 on the electrochemical hydrogenation of nanocrystalline magnesium显示文摘ZANDER D LYUBENOVA L K(O)STER U 2006J of Alloys and Compounds2006,413,:1
13Finite Element Modelling and Investigation of the Process Parameters in Deep Rolling of AISI 4140 Steel显示文摘Nataliya Lyubenova Dirk Baehre 2015材料科学与工程(中英文B版)2015,5,7:1
14Observations and light curve solutions of the W UMa binaries V796 Cep,V797 Cep,CSS J015341.9+381641 and NSVS 3853195显示文摘Photometric observations in Sloan g′and i′bands of four W UMa binaries, V796 Cep,V797 Cep, CSS J015341.9+381641 and NSVS 3853195, are presented. Our observations showed that CSS J015404.1+382805 and NSVS 3853195 are the same star. We determined the initial epochs T_0 of all targets and found improved values for the period of NSVS 3853195. The light curve solutions of our data revealed that the components of each target are almost the same in terms of mass, temperature,radius and luminosity. The stellar components are G and K spectral types and undergo partial eclipses.All systems have barely-overcontact configurations and can be classified as H subtype W UMa binaries.We established that the relation between the luminosity ratio l_2/l_1 and mass ratio q of our targets is approximately l_2/l_1 = q^(1.5).Diana Petrova Kjurkchieva Velimir Angelov Popov Sunay Ibryamov Ibryamov Doroteya Lyubenova Vasileva Nikola Ivanov Petrov 2017Research in Astronomy and Astrophysics2017,17,5:0
15Observations and light curve solutions of a selection of middle-contact W UMa binaries显示文摘Photometric observations in Sloan g′and i′ bands of W UMa binaries NSVS 4340949,T-Dra0–00959,GSC 03950–00707,NSVS 4665041,NSVS 4803568,MM Peg,MM Com and NSVS4751449 are presented.The light curve solutions revealed that the components of each target are of G and K spectral types.The binaries of the sample have middle-contact configurations whose fillout factors are within the range 0.2–0.4.The only exception is NSVS 4751449 which is in deeper contact(fillout factor of 0.55).It precisely obeys the relation between mass ratio and fillout factor for deep,low mass ratio overcontact binaries.One of the eclipses of almost all targets(except MM Peg)is an occultation and their photometric mass ratios and solutions could be accepted with confidence.We found that the target components have almost equal temperatures but differ considerably in size and mass.The components of the partially-eclipsed MM Peg have close parameters.Our solutions reveal that NSVS 4340949,T-Dra0–00959,NSVS 4803568 and MM Com are of W subtype while GSC 03950–00707,NSVS 4665041,MM Peg and NSVS 4751449 are of A subtype.This subclassification is well-determined for all totallyeclipsed binaries.The targets confirm the trends in which W-subtype systems have smaller periods and lower temperatures than A subtype binaries.Diana Petrova Kjurkchieva Velimir Angelov Popov Doroteya Lyubenova Vasileva Nikola Ivanov Petrov 2018Research in Astronomy and Astrophysics2018,18,4:0
16Photometric observations and light curve solutions of the W UMa stars NSVS 2244206,NSVS 908513,CSS J004004.7+385531 and VSX J062624.4+570907显示文摘Photometric observations in Sloan g' and i' bands of four W UMa stars,NSVS 2244206,NSVS908513,CSS J004004.7+385531 and VSX J062624.4+570907,are presented.The light curve solutions reveal that all targets have overcontact configurations with fillout factors within 0.15-0.26.Their components are G-K spectral types and are almost in thermal contact.They are also relatively close in size and luminosity:the radius ratios r_2/r_1 are within 0.75-0.90;the luminosity ratios l_2/l_1 are within 0.53-0.63.The results of the light curve solution of CSS J004004.7+385531 imply the weak limb-darkening effect of its primary component and possible presence of additional absorbing features in the system.Diana Petrova Kiurkchieva Velimir Angelov Popov Doroteya Lyubenova Vasileva Nikola Ivanov Petrov 2016Research in Astronomy and Astrophysics2016,16,9:0
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