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  • Other research product . Other ORP type . 2021
    Open Access English
    Authors: 
    Banis, Frederik; Madsen, Henrik; Vardanyan, Yelena; Pourmousavi Kani, Seyyed Ali; Guericke, Daniela; Poulsen, Niels Kjølstad;
    Publisher: Technical University of Denmark
    Country: Denmark

    Electric Vehicles (EVs) will play an important role in the future of transportation. EVs - similarly to other Distributed Energy Resources (DER) such as small photovoltaic units - also modify consumption patterns to an extent where this can and, in many cases, will lead to problematic operating conditions of the system if we do not consider appropriate countermeasures. Such countermeasures are means to resolve operational issues by improving the physical infrastructure or the way one operates the system.

  • Open Access English
    Authors: 
    Evseev, Vadim; Fateev, Alexander; Sizikov, Valery; Clausen, Sønnik; Nielsen, Karsten Lindorff;
    Country: Denmark
  • Open Access English
    Authors: 
    Sanchez-Fernandez, C.; Eckert, D.; Bozzo, E.; Kajava, J.; Kuulkers, E.; Chenevez, J.;
    Country: Denmark

    INTEGRAL observed the Galactic Center Region between (UT) 2015-08-22 05:26 and 18:44. Enhanced X-ray emission was detected by the Joint European Monitor for X-rays (JEM-X) in the 3-10 keV band, (15 mCrab; 9-sigma significance) at the following position: (R.A., Dec) = (255.5284, -29.94175) = (17 02 06.82, -29 56 30.3) (J2000); 0.4 arc min 90% confidence limit. These coordinates are consistent with those of the optical counterpart of H 1658-298: (R.A., Dec) = (17 02 06.5, -29 56 44.1; J2000, Liu et al., 2007 A&A, 469, 807), and thus confirm the system as the origin of the MAXI trigger on Aug 21 (see ATel #7943). The source spectrum extracted from the JEM-X data (effective exposure time 10.7 ksec) can be fit by a power-law model with photon index 2.9+/-0.5. The flux estimated from the spectral fit is 2.8E-10 erg/cm^2/s (3-10 keV). H 1658-298 was marginally detected in hard X-rays (~6.8 mCrab, 4.5-sigma significance in the 20-40 keV energy band) by IBIS, the Imager Onboard the INTEGRAL Satellite. H 1658-298 is a known X-ray burster. Therefore we have searched for Type-I burst activity in the JEM-X data during these observations, but no indications of burst activity have been found. We note here that the last outburst from this system was detected in 1999 April and lasted for ~2.5 years. It is likely we are at the onset of a similar outburst. Further INTEGRAL observations of the Galactic Center field are foreseen in the coming time, from August 26. Multi-wavelength observations of H 1658-298 are encouraged.

  • Other research product . Other ORP type . 2020
    Open Access English
    Authors: 
    Boberg, Julie; Christiansen, Sofie; Axelstad Petersen, Marta;
    Country: Denmark

    Departementet ønsker DTU Foods faglige vurdering af den farevurdering som SCCS har foretaget, og som anvendes som baggrund for risikovurderingen. Særligt ønskes der en vurdering af om der er en tærskelværdi for stofferne, eller om risikovurderingen af den grund burde være foretaget på et andet grundlag samt om der burde være taget højde for at der kan ske udsættelse for andre stoffer med samme virkningsmekanisme. Hvis muligt gerne med bud på, hvordan vurderingerne i givet fald så skulle være foretaget. Hvis DTU Food ikke er enig med SCCS bedes udarbejdes kommentarer på engelsk, der kan anvendes som udgangspunkt for kommentarer til SCCS på Danmarks vegne. Disse må gerne indeholde bud på evt. andre parametre, som DTU Food mener er essentielle ved en vurdering.Kommissionen har anmodet SCCS om at vurdere om Propylparaben er sikkert, når det anvendes som konserveringsmiddel i kosmetiske produkter op til en maksimal koncentration på 0,14% på baggrund af de bekymringer, der er forbundet med Propylparabens potentielle hormonforstyrrende egenskaber. Herudover skal SCCS vurdere den maksimale koncentration af propylparaben, der betragtes som sikker som konserveringsmiddel i kosmetiske produkter, samt om SCCS har yderligere videnskabelige bekymringer med hensyn til brugen af Propylparaben i kosmetiske produkter.

  • Open Access English
    Authors: 
    Miller, Arne; Helt-Hansen, Jakob;
    Country: Denmark
  • Other research product . Other ORP type . 2022
    Open Access English
    Authors: 
    Hasager, Charlotte Bay;
    Country: Denmark
  • Open Access English
    Authors: 
    Vilhelmsen, Troels; Marker, Pernille Aabye; Foged, Nikolaj; Wernberg, Thomas; Høyer Christensen, Anne-Sophie; Bauer-Gottwein, Peter; Christensen, Steen; Auken, Esben;
    Country: Denmark
  • Other research product . Other ORP type . 2018
    Open Access English
    Authors: 
    Jacobsen, Charlotte;
    Publisher: Technical University of Denmark
    Country: Denmark
  • Open Access English
    Authors: 
    Painuly, J.P.;
    Country: Denmark
Advanced search in
Research products
arrow_drop_down
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Any field
arrow_drop_down
includes
arrow_drop_down
Include:
1,107 Research products, page 1 of 111
  • Other research product . Other ORP type . 2021
    Open Access English
    Authors: 
    Banis, Frederik; Madsen, Henrik; Vardanyan, Yelena; Pourmousavi Kani, Seyyed Ali; Guericke, Daniela; Poulsen, Niels Kjølstad;
    Publisher: Technical University of Denmark
    Country: Denmark

    Electric Vehicles (EVs) will play an important role in the future of transportation. EVs - similarly to other Distributed Energy Resources (DER) such as small photovoltaic units - also modify consumption patterns to an extent where this can and, in many cases, will lead to problematic operating conditions of the system if we do not consider appropriate countermeasures. Such countermeasures are means to resolve operational issues by improving the physical infrastructure or the way one operates the system.

  • Open Access English
    Authors: 
    Evseev, Vadim; Fateev, Alexander; Sizikov, Valery; Clausen, Sønnik; Nielsen, Karsten Lindorff;
    Country: Denmark
  • Open Access English
    Authors: 
    Sanchez-Fernandez, C.; Eckert, D.; Bozzo, E.; Kajava, J.; Kuulkers, E.; Chenevez, J.;
    Country: Denmark

    INTEGRAL observed the Galactic Center Region between (UT) 2015-08-22 05:26 and 18:44. Enhanced X-ray emission was detected by the Joint European Monitor for X-rays (JEM-X) in the 3-10 keV band, (15 mCrab; 9-sigma significance) at the following position: (R.A., Dec) = (255.5284, -29.94175) = (17 02 06.82, -29 56 30.3) (J2000); 0.4 arc min 90% confidence limit. These coordinates are consistent with those of the optical counterpart of H 1658-298: (R.A., Dec) = (17 02 06.5, -29 56 44.1; J2000, Liu et al., 2007 A&A, 469, 807), and thus confirm the system as the origin of the MAXI trigger on Aug 21 (see ATel #7943). The source spectrum extracted from the JEM-X data (effective exposure time 10.7 ksec) can be fit by a power-law model with photon index 2.9+/-0.5. The flux estimated from the spectral fit is 2.8E-10 erg/cm^2/s (3-10 keV). H 1658-298 was marginally detected in hard X-rays (~6.8 mCrab, 4.5-sigma significance in the 20-40 keV energy band) by IBIS, the Imager Onboard the INTEGRAL Satellite. H 1658-298 is a known X-ray burster. Therefore we have searched for Type-I burst activity in the JEM-X data during these observations, but no indications of burst activity have been found. We note here that the last outburst from this system was detected in 1999 April and lasted for ~2.5 years. It is likely we are at the onset of a similar outburst. Further INTEGRAL observations of the Galactic Center field are foreseen in the coming time, from August 26. Multi-wavelength observations of H 1658-298 are encouraged.

  • Other research product . Other ORP type . 2020
    Open Access English
    Authors: 
    Boberg, Julie; Christiansen, Sofie; Axelstad Petersen, Marta;
    Country: Denmark

    Departementet ønsker DTU Foods faglige vurdering af den farevurdering som SCCS har foretaget, og som anvendes som baggrund for risikovurderingen. Særligt ønskes der en vurdering af om der er en tærskelværdi for stofferne, eller om risikovurderingen af den grund burde være foretaget på et andet grundlag samt om der burde være taget højde for at der kan ske udsættelse for andre stoffer med samme virkningsmekanisme. Hvis muligt gerne med bud på, hvordan vurderingerne i givet fald så skulle være foretaget. Hvis DTU Food ikke er enig med SCCS bedes udarbejdes kommentarer på engelsk, der kan anvendes som udgangspunkt for kommentarer til SCCS på Danmarks vegne. Disse må gerne indeholde bud på evt. andre parametre, som DTU Food mener er essentielle ved en vurdering.Kommissionen har anmodet SCCS om at vurdere om Propylparaben er sikkert, når det anvendes som konserveringsmiddel i kosmetiske produkter op til en maksimal koncentration på 0,14% på baggrund af de bekymringer, der er forbundet med Propylparabens potentielle hormonforstyrrende egenskaber. Herudover skal SCCS vurdere den maksimale koncentration af propylparaben, der betragtes som sikker som konserveringsmiddel i kosmetiske produkter, samt om SCCS har yderligere videnskabelige bekymringer med hensyn til brugen af Propylparaben i kosmetiske produkter.

  • Open Access English
    Authors: 
    Miller, Arne; Helt-Hansen, Jakob;
    Country: Denmark
  • Other research product . Other ORP type . 2022
    Open Access English
    Authors: 
    Hasager, Charlotte Bay;
    Country: Denmark
  • Open Access English
    Authors: 
    Vilhelmsen, Troels; Marker, Pernille Aabye; Foged, Nikolaj; Wernberg, Thomas; Høyer Christensen, Anne-Sophie; Bauer-Gottwein, Peter; Christensen, Steen; Auken, Esben;
    Country: Denmark
  • Other research product . Other ORP type . 2018
    Open Access English
    Authors: 
    Jacobsen, Charlotte;
    Publisher: Technical University of Denmark
    Country: Denmark
  • Open Access English
    Authors: 
    Painuly, J.P.;
    Country: Denmark
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