Items where Author is "El Naggar, Saad El Dine"

Article

Breitzke, M. , Boebel, O.

, El Naggar, S. E. D. , Jokat, W.

and Werner, B. (2008)
Broad-band calibration of marine seismic sources used by R/V Polarstern for academic research in polar regions ,

Geophysical Journal International, 174 , pp. 505-524 .

doi:10.1111/j.1365-246X.2008.03831.x , hdl:10013/epic.30684

Article

Wuttke, S. , El Naggar, S. E. D. , Bluszcz, T. and Schrems, O. (2007)
Ship-borne measurements of erythemal UV irradiance and ozone content in various climate zones ,

Photochemical & Photobiological Sciences, 6 (10), pp. 1081-1088 .

doi:10.1039/b617602j , hdl:10013/epic.27902

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Article

El Naggar, S. E. D. , Pfeiffenberger, H.

, Schlüter, J. M. , Makedanz, S.

and Hofmann, J. (2005)
Communication Facilities For Antarctic Operations Used By The Alfred Wegener Institute ,

XI SCALOP Symposium : Towards the International Polar Year and Beyond ; 28 July 2004, Congress Centre, Bremen, Germany. Berlin : Selbstverlag der Alfred-Wegener-Stiftung, 85-87. (Terra Nostra : Schriften der Alfred-Wegener-Stiftung ; 2004/5) .

hdl:10013/epic.24260

Article

Drücker, C. , Gernandt, H. and El Naggar, S. E. D. (2005)
Surface Transport Logistics of the AWI in Antarctica ,

Proceedings of the XI SCALOP Symposium : 28 July 2004, Congress Centre, Bremen, Germany ; / [Hrsg.: Alfred-Wegener-Stiftung (AWS)]. Ed.: Hartwig Gernandt ...]. Berlin : AWS, 76 - 84. (Terra nostra ; 2004,5) .

hdl:10013/epic.24262

Article

El Naggar, S. E. D. , Gernandt, H. , Spelten, N. and Klaas, A. (2001)
Personal ultraviolett-B dosimetry at Koldewey-Station by using an electronic dosimeter ELUV-14. ,

Environmental research in the Arctic 2000 : proceedings of the Second International Symposium on Environmental Research in the Arctic and Fifth Ny-Ålesund Scientific Seminar ; 23-25 February, NIPR, Tokyo / ed. by Okitsugu Watanabe... Tokyo : National Ins .

hdl:10013/epic.15077

Article

Ahammer, H. , Matz, T. , El Naggar, S. E. D. and Gernandt, H. (2000)
Biological sewage plants at Neumayer and the Argentinian Base Jubany. ,

Proceedings IX SCALOP Symposium, XII COMNAP, Tokyo, July 2000,IX, 203 - 206 .

hdl:10013/epic.17737

Article

El Naggar, S. E. D. , Gernandt, H. and Janneck, J. (2000)
Operational experience with wind power technology at Neumayer station. ,

Proceedings of the ninth SCALOP symposium, Tokyo, Japan 2000 / [Ed. by: Kazuyuki Shiraishi. Tokyo : NIPR, pp. 89-97 .

hdl:10013/epic.17716

Article

El Naggar, S. E. D. , Garrity, C. and Ramseier, R. O. (1998)
The modelling of sea ice-melt water ponds for the High Arctic using an airborne line scan camera, and applied to the satellite special sensor microwave/imager (SSM/I) ,

International Journal of Remote Sensing, 19 (12), pp. 2373-2394 .

hdl:10013/epic.11325

Article

El Naggar, S. E. D. , Garrity, C. and Ramseier, R. O. (1998)
The modelling of sea ice-melt water ponds for the High Arctic using an airborne line scan camera, and applied to the satellite special sensor microwave/imager (SSM/I) ,

International Journal of Remote Sensing, 19 (12), pp. 2373-2394 .

hdl:10013/epic.19445

Article

El Naggar, S. E. D. , Gustat, H. , Magister, H. and Rochlintzer, R. (1995)
An electronic personal UV-B-disimeter. ,

J. Photochem. Photobiol. B. Biol., 31 , pp. 83-86 .

hdl:10013/epic.15067

Article

El Naggar, S. E. D. , Gustat, H. , Magister, H. and Rochlitzer, R. (1995)
An electronic personal UV-B-dosimeter ,

Journal of photochemistry and photobiology b-biology, 31 , pp. 83-86 .

hdl:10013/epic.15068

Article

Quintern, L. E. , Puskeppeleit, M. , Rainer, P. , Weber, S. , El Naggar, S. E. D. , Eschweiler, U. and Horneck, G. (1994)
Continuous dosimetry of the biologically harmful UV-radiation in Antarctica with the biofilm technique ,

Journal of photochemistry and photobiology b-biology, 22, pp. 59-66 .

hdl:10013/epic.13062

Article

Puskeppeleit, M. , Quintern, L. E. , El Naggar, S. E. D. , Schott, J. U. , Eschweiler, U. , Horneck, G. and Bücker, H. (1992)
Long-term dosimetry of solar UV radiation in Antarctica with spores of Bacillus subtilis ,

Applied Environment Microbiology, 58 (8), pp. 2355-2359 .

hdl:10013/epic.13057

Article

Wamser, C. and El Naggar, S. E. D. (1989)
Line Scan Camera ,

Hamburger Geophys. Einzelschr., 6 , pp. 57-60 .

hdl:10013/epic.15065

Article

El Naggar, S. E. D. , Schweitzer-Stenner, R. , Dreybrodt, W. and Mayer, A. (1984)
Determination of the Raman tensor of the heam group in myoglobin by resonance Raman scattering in solution and single crystals. ,

Biophys. Struc. Mech., 10 , pp. 257-273 .

hdl:10013/epic.15061

Article

Schweitzer-Stenner, R. , Dreybrodt, W. , Wedekind, D. and El Naggar, S. E. D. (1984)
Investigation of pH-induced symmetry distrotions of the prosthetic group in oxyhaemoglobin by resonance Raman. ,

European biophysics journal with biophysics letters, 11 , pp. 61-76 .

hdl:10013/epic.15063

Article

Schweitzer-Stenner, R. , Dreybrodt, W. and El Naggar, S. E. D. (1984)
Investigation of ph-induced symmetry distortions of the prosthetic group in deoxyhaemoglobin by resonance Raman. ,

Biophys. Struct. Mech., 10 , pp. 241-256 .

hdl:10013/epic.15062

Article

Schweitzer, R. , Dreybrodt, W. , Mayer, A. and El Naggar, S. E. D. (1982)
Influence of the solvent environment on the polarization properties of resonance Raman scattering in haemoglobin. ,

Journal of raman spectroscopy, 13 , pp. 139-148 .

hdl:10013/epic.15060

Article

Lausch, W. and El Naggar, S. E. D. (1972)
BaTiO3-Keramik als neuer Exo-Elektronen Emitter ,

Radiochem. Radioanal. Letters, 12 , pp. 177-184 .

hdl:10013/epic.15059

Book

Gernandt, H. , El Naggar, S. E. D. and Kunz-Pirrung, M. (2005)
Proceedings of the XI SCALOP Symposium "Towards the International Polar Year and Beyond" 28 July 2004 - Bremen, Germany ,

Terra Nostra, 242 p. .

hdl:10013/epic.23650

Book

Smetacek, V. , Bathmann, U. and El Naggar, S. E. D. (2001)
The expeditions ANTARKTIS XVIII/1-2 of the research vessel Polarstern ,

Berichte zur Polar- und Meeresforschung = Reports on polar and marine research / Alfred-Wegener-Institut für Polar- und Meeresforschung .

hdl:10013/epic.15384

Inbook

Breitzke, M. , El Naggar, S. E. D. , Graffe, D. , Kuhn, G.

, Niederjasper, F. and Lütticke, U. (2007)
Studies to minimize the acoustic impact of the Atlas Hydrosweep and Parasound echosounders on the marine environment in the Bay of Biscay. ,

In: M. R. v. d. Loeff (Ed.), The Expedition ANTARKTIS XXIII/1 of the Research Vessel "Polarstern" in 2005 (ANT XXIII/1), Berichte zur Polarforschung .

hdl:10013/epic.31624

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Inbook

El Naggar, S. E. D. , Schütt, E. , Breitzke, M. , Schönwetter, R. and Boebel, O.

(2007)
Test of the ELAC NDS3070 Collision Avoidance Sonar in the Bay of Biscay ,

In: M. R. V. d. Loeff (Ed.), The Expedition ANTARKTIS XXIII/1 of the Research Vessel "Polarstern" to the Antarctic in 2005 (ANT-XXIII/1). Berichte zur Polarforschung .

hdl:10013/epic.32153

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Conference -Conference paper

Boebel, O.

, Klinck, H. , Kindermann, L. and El Naggar, S. E. D. (2008)
PALAOA: Broadband recordings of the Antarctic coastal soundscape ,

Bioacoustics .

hdl:10013/epic.30575

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Conference -Invited talk

Breitzke, M. , Boebel, O.

, El Naggar, S. E. D. , Jokat, W.

, Werner, B. and Diebold, J. (2007)
Akustische Vermessung der Luftpulser Quellen des Forschungseisbrechers Polarstern im Herdlefjord, Norwegen ,

"Schall und Schwingungen in sensibler Umgebung", DWT-Tagung Anwendungen der Akustik in der Wehrtechnik, 27 Feb.-01 März 2007, an der WTD 91, Meppen. .

hdl:10013/epic.26044

Conference -Conference paper

Breitzke, M. , Boebel, O.

, El Naggar, S. E. D. , Jokat, W.

, Werner, B. and Diebold, J. (2007)
Akustische Vermessung der Luftpulser Quellen des Forschungseisbrechers Polarstern im Herdlefjord, Norwegen ,

15. Arbeitstagung Akustik in der Wehrtechnik Bonn : Studiengesellschaft d. Deutschen Gesellschaft f. Wehrtechnik .

hdl:10013/epic.28125

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Conference -Poster

Boebel, O.

, Klinck, H. , Kindermann, L. and El Naggar, S. E. D. (2007)
PALAOA: Broadband recordings of the Antarctic coastal soundscape ,

The Effects of Noise to Aquatic Life, 13 August to 17 August 2007, Nyborg, Denmark. .

hdl:10013/epic.28005

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Conference -Poster

Wuttke, S. , El Naggar, S. E. D. and Schrems, O. (2007)
Ship-borne UV and ozone measurements in the northern and southern hemisphere ,

EGU general assembly, 15-20 April , Vienna (Austria). .

hdl:10013/epic.28829

Conference -Talk

Wuttke, S. , El Naggar, S. E. D. and Schrems, O. (2007)
Ship-borne measurements of UV irradiance in the northern and southern hemisphere ,

Deutsche Physikertagung 2007: 26 30 March 2007, Deutsche Physikalische Gesellschaft, Regensburg, Germany. .

hdl:10013/epic.28029

Conference -Talk

Breitzke, M. , Boebel, O.

, El Naggar, S. E. D. , Jokat, W.

, Kuhn, G.

, Niessen, F.

, Schenke, H. W. , Werner, B. and Diebold, J. (2006)
Akustische Vermessung der marin-seismischen Quellen des FS Polarstern im Herdle Fjord, Norwegen ,

66. Jahrestagung der Deutschen Geophysikalischen Gesellschaft, 06-09 März, Bremen. .

hdl:10013/epic.24285

Conference -Conference paper

Breitzke, M. , Boebel, O.

, El Naggar, S. E. D. , Jokat, W.

and Werner, B. (2006)
Broadband calibration of marine seismic sources used for academic research in the Southern Ocean: A case study with R/V Polarstern's airguns and airgun arrays ,

Information Paper IP98 , Agenda Item: CEP8(submitted via SCAR), Antarctic Treaty Consultative Meeting XXIX, Edinburgh, UK .

hdl:10013/epic.26241

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Conference -Invited talk

Breitzke, M. , Boebel, O.

, El Naggar, S. E. D. , Jokat, W.

, Kuhn, G.

, Niessen, F.

, Schenke, H. W. , Werner, B. and Diebold, J. (2006)
Broadband characterization of marine seismic sources used by R/V Polarstern ,

SCAR workshop to review the risks associated with marine acoustics in the Southern Ocean, 24-26 January, Cadiz, Spain. .

hdl:10013/epic.24661

Conference -Talk

Breitzke, M. , Boebel, O.

, El Naggar, S. E. D. , Jokat, W.

, Kuhn, G.

, Niessen, F.

, Schenke, H. W. , Werner, B. and Diebold, J. (2006)
Broadband sound pressure field characteristics of marine seismic sources used by R/V Polarstern ,

Joint Assembly, 23-26 May, Baltimore, Maryland, USA. .

hdl:10013/epic.24927

Conference -Talk

Wuttke, S. , El Naggar, S. E. D. , Bluszcz, T. and Schrems, O. (2006)
Ship-borne measurements of UV irradiance on a north-south Atlantic transect ,

Remote Sensing 2006: 1116 September 2006, The International Society for Optical Engineering (SPIE), Stockholm, Schweden. .

hdl:10013/epic.28030

Conference -Invited talk

Breitzke, M. , Boebel, O.

, El Naggar, S. E. D. , Jokat, W.

, Kuhn, G.

, Niessen, F.

, Schenke, H. W. and Werner, B. (2005)
Calibration of marine seismic sources used by the German icebreaker R/V Polarstern ,

FEMME 2005(Kongsberg Maritime Forum for EM Mutual Experience), 26-29 April, Dublin, Ireland. .

hdl:10013/epic.23078

Conference -Poster

El Naggar, S. E. D. , Schrems, O. , Bluszcz, T. and Hanken, T. (1999)
UV-B and Ozone Distributions between Cape Town and Bremerhaven from 27.05.98 to 21.06.98 ,

Abstracts of the 3rd Workshop of Thematic Network for UV Measurements, Teddington, UK, September 8 - 10,. .

hdl:10013/epic.18029

Conference -Poster

El Naggar, S. E. D. and Rochlitzer, R. (1998)
An Electronic Personal Dosimeter ( ELUV-14) for Outdoor UV-B-Dosimetry ,

Abstracts of the European Conference on Atmospheric UV Radiation, Helsinki, Finnland June 29- July 2 .

hdl:10013/epic.18028

Conference -Poster

El Naggar, S. E. D. and Kockott, D. (1996)
Personal Dosimetry of UV-Radiation by Using the Polysulphone Film ,

Veröffentlichungen der Strahlenschutzkommission, Band 34 .

hdl:10013/epic.18027

Conference -Poster

El Naggar, S. E. D. and Gustat, H. (1996)
UV-B-Dosis Measurements at Personal Related Level in Antarctica by Using an Electronic Dosimeter ,

Veröffentlichungen der Strahlenschutzkommission, Band 34 .

hdl:10013/epic.18026

Conference -Poster

El Naggar, S. E. D. , Garrity, C. and Ramseier, R. (1995)
Sea Ice Meltpond Morphology and Size Distribution as Determined from Line Scan Camera Local Measurements in the Arctic ,

IAPSO Proceedings XXI General Assembly, Number 19 .

hdl:10013/epic.18004

Conference -Conference paper

El Naggar, S. E. D. and Schoppe, S. (1994)
Waste management concept at the German winter station Neumayer ,

Proceeding sixth Symposium on Antarctic Logistics and Operation, Rom .

hdl:10013/epic.18023

Conference -Invited talk

El Naggar, S. E. D. , Bochert, A. , Ramseier, R. and Garrity, C. (1991)
Sea-Ice signatures & Meltpond Concentrations as determined from passive Microwave Radiometer & Line Scan Camera Measurements ,

IAPSO Proceedings XX General assembly, Number 18 .

hdl:10013/epic.17994

Conference -Conference paper

Steinbrecht, W. , Rothe, K. W. , Walther, H. , El Naggar, S. E. D. and Augstein, E. (1989)
LIDAR daylight measurements of stratospheric ozone at the North Pole and the Equator ,

Ozone in the atmosphere Proc Quadr Ozone Symp , Göttingen, 1988 (R D Bojkov, P Fabian, eds ) Deepak Publ , Hampton, Vi .

hdl:10013/epic.13618

Conference -Conference paper

Steinbrecht, W. , Rothe, K. W. , Walther, H. , El Naggar, S. E. D. and Augstein, E. (1989)
LIDAR daylight measurements of stratospheric ozone at the North Pole and the Equator. ,

In: Ozone in the atmosphere: Proc. Quadr. Ozone Symp., Göttingen, 1988 (R.D. Bojkov, P. Fabian, eds.) Deepak Publ., Hampton., VI .

hdl:10013/epic.15066

Conference -Conference paper

Krüger, B. C. , Neuber, R.

, El Naggar, S. E. D. and Walther, H. (1989)
Measurements of ozone profiles by a LIDAR method during the Arctic winter and spring 1988 ,

Ozone in the atmosphere Proc Quadr Ozone Symp , Göttingen, 1988 (R D Bojkov, P Fabian, eds ) Deepak Publ , Hampton, Vi .

hdl:10013/epic.12397

Conference -Conference paper

Wedekind, D. , El Naggar, S. E. D. , Schweitzer-Stenner, R. and Dreybrodt, W. (1984)
pH induced changes of tertiary structure of oxyhaemoglobin, detected by resonance Raman-spectroscopy. ,

Proceedings of the 9th international symposium on Raman spectroscopy and biological sciences. .

hdl:10013/epic.15064

Other

Klinck, H. , Kindermann, L. , El Naggar, S. E. D. and Hofmann, J. (2007)
Intelligentes Regel- und Steuersystem für autarke Stromerzeugungsmodule mit mehreren Stromerzeugern ,

[Other]

hdl:10013/epic.28833

"Berichte zur Polar- und Meeresforschung" Expedition reports

El Naggar, S. E. D. (2012)
The expedition of the research vessel "Polarstern" to the Antarctic in 2011 (ANT-XXVIII/1) ,

Berichte zur Polar- und Meeresforschung = Reports on polar and marine research, Bremerhaven, Alfred Wegener Institute for Polar and Marine Research, 657 , 78 p. .

doi:10.2312/BzPM_0657_2012 , hdl:10013/epic.40417

[thumbnail of 657-2012_El_Naggar_ANT-28-1.pdf]

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"Berichte zur Polar- und Meeresforschung" Expedition reports

El Naggar, S. E. D. (2011)
The Expedition of the Research Vessel "Polarstern" to the Antarctic in 2011 (ANT-XXVII/4) ,

Berichte zur Polar- und Meeresforschung (Reports on Polar and Marine Research), Bremerhaven, Alfred Wegener Institute for Polar and Marine Research, 639 , 40 p. .

doi:10.2312/BzPM_0639_2011 , hdl:10013/epic.38491

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"Berichte zur Polar- und Meeresforschung" Expedition reports

El Naggar, S. E. D. and Macke, A. (2010)
The Expedition of the Research Vessel "Polarstern" to the Antarctic in 2009 in (ANT-XXVI/1) ,

Berichte zur Polar- und Meeresforschung = Reports on polar and marine research, Bremerhaven, Alfred Wegener Institute for Polar and Marine Research, 614 , 79 p. .

doi:10.2312/BzPM_0614_2010 , hdl:10013/epic.35280

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"Berichte zur Polar- und Meeresforschung" Expedition reports

Zenk, W. and El Naggar, S. E. D. (2010)
The expedition of the research vessel "Polarstern" to the Antarctic in 2009 (ANT-XXV/5) ,

Berichte zur Polar- und Meeresforschung (Reports on Polar and Marine Research), Bremerhaven, Alfred Wegener Institute for Polar and Marine Research, 603 , 62 p. .

doi:10.2312/BzPM_0603_2010 , hdl:10013/epic.34023

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"Berichte zur Polar- und Meeresforschung" Expedition reports

El Naggar, S. E. D. , Dieckmann, G. , Haas, C.

, Schröder, M. and Spindler, M. (2007)
The Expeditions ANTARKTIS-XXII/1 and XII/2 of the Research Vessel "Polarstern" in 2004/2005 ,

Berichte zur Polar- und Meeresforschung (Reports on Polar and Marine Research), Bremerhaven, Alfred Wegener Institute for Polar and Marine Research, 551 , 259 p. .

doi:10.2312/BzPM_0551_2007 , hdl:10013/epic.27429

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"Berichte zur Polar- und Meeresforschung" Expedition reports

Fahrbach, E. , El Naggar, S. E. D. and Fütterer, D. (2003)
Die Expedition ANTARKTIS XVIII/3-4 des Forschungsschiffes POLARSTERN 2000/2001 sowie die Aktivitäten an Land und bei der Neumayer-Station = The expedition ANTARKTIS XVIII/3-4 of the research vessel POLARSTERN in 2000/2001 including operations on land and at the Neumayer Station ,

Berichte zur Polar- und Meeresforschung (Reports on Polar and Marine Research), Bremerhaven, Alfred Wegener Institute for Polar and Marine Research, 445 , 160 p. .

doi:10.2312/BzPM_0445_2003 , hdl:10013/epic.10450

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"Berichte zur Polar- und Meeresforschung" Expedition reports

Fahrbach, E. and El Naggar, S. E. D. (2001)
Die Expeditionen ANTARKTIS XVI/1-2 des Forschungsschiffes POLARSTERN 1998/1999 = The expeditions ANTARKTIS XVI/1-2 of the research vessel POLARSTERN in 1998/1999 ,

Berichte zur Polar- und Meeresforschung (Reports on Polar and Marine Research), Bremerhaven, Alfred Wegener Institute for Polar and Marine Research, 380 , 177 p. .

doi:10.2312/BzPM_0380_2001 , hdl:10013/epic.10384

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"Berichte zur Polar- und Meeresforschung" Expedition reports

Smetacek, V. , Bathmann, U. and El Naggar, S. E. D. (2001)
The expeditions ANTARKTIS XVIII/1-2 of the research vessel "Polarstern" in 2000 = Die Expeditionen ANTARKTIS XVIII/1-2 des Forschungsschiffes "Polarstern" 2000 ,

Berichte zur Polar- und Meeresforschung (Reports on Polar and Marine Research), Bremerhaven, Alfred Wegener Institute for Polar and Marine Research, 400 , 232 p. .

hdl:10013/epic.10404