ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • General relativity, alternative theories of gravity  (6)
  • Aquaculture techniques  (3)
  • Condensed Matter: Structure, etc.
  • 2015-2019  (10)
  • 2010-2014  (1)
  • 1
    Publication Date: 2021-05-19
    Description: Dans ce travail, realise a l'ecloserie de l'INSTOP a Ghar El Melh, on se propose d'exposer les resultats des cultures du phytoplancton dans une salle climatisee en petits volumes. Par opposition aux cultures en grandes volumes soumises aux aleas climatiques, cette technique permet la maitrise des parametres physico-chimiques (lumiere, temperature, sels minerauxa) et l'obtention de hautes densites algales dans un laps de temps assez court. (DBO)
    Description: In this work, conducted in the INSTOP hatchery at Ghar El Melh, the results are given of the culture of small volumes of phytoplankton in an air-conditioned room. As opposed to culture of large volumes, subject to climatic variations, this technique allows the control of physico-chemical parameters (light, temperature, mineral salts) and the production of high algal densities in a short lapse of time.
    Description: Published
    Keywords: Culture phytoplancton ; Microalgues ; Hatcheries ; Phytoplankton culture ; Marine aquaculture ; Aquaculture techniques ; Aquaculture systems ; Marine
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp. 30-40
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 2
    Publication Date: 2021-05-19
    Description: This study was conducted in Bizerte lake (Tunisia) between April and July of 1998. It concerns Gracilaria verrucosa culture with 3 techniques in order to determine the best one. After 58 days, the sand pudding method gave the best result with reference of average weight (1205 g), % of recuperation of the tuft (90 %), final density (2,7 kg/m super(2)) and specific growth rate (3,100).
    Description: Published
    Keywords: Mode de culture ; Accroisseirent du poids ; Densité de culture ; Sujet growth rate ; Density ; Experimental culture ; Seaweed culture ; Culture media ; Aquaculture techniques ; Gracilaria verrucosa ; Brackish
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp. 113-125
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 3
    Publication Date: 2021-05-19
    Description: Cette étude, réalisée dans la partie Nord-Est du lac de Bizerte du premier Avril au 30 Juin 1999, porte sur l’étude de l’effet des deux paramètres, distance entre les touffes et poids initial des touffes, sur le rendement de culture par bouturage de Gracilaria verrucosa selon le mode des boudins de sable. Il en ressort que les conditions optimales de culture de cette espèce sont engendrées par un poids initial de 200 g, une distance entre les fragments de thalles de 30 cm et une récolte impérativement vers la fin du mois de Juin. Dans ces conditions, on enregistre un passage du poids de 200 g à 1087 g, un taux de croissance spécifique de 2,20 et une densité finale de 3,74 kg/m².
    Description: This study which was realised in Bizerte lake between April and June of 1999 concern the impact of the two parameters, the distance between the tuft and the initial weight of these tuft, on the output of Gracilaria verrucosa culture. It shows that the optimal conditions of this species can be summarised as following : initial weight of 200 g, distance between the tuft of 30 cm and harvesting necessarily during the end of June. In the such conditions, the weight reach 1087 g, the specific rate growth is 2,20 and the final density is 3,74 kg / m².
    Description: أجريت هذه الدراسة بالناحية الشمالية الشرقية لبحيرة بنزرت من بداية شهر افريل إلى شهر جوان سنة 1999 وهي تخص دراسة مفعول عنصري المسافة بين الخصلات والوزن الأولى لتلك الخصلات وذلك على مردود استزراع طحلب الغراسيلاريا بالافتسال حسب طريقة فصيد الرمل. وتبين أن الظروف المناسبة لاستزراع هذا النوع تتمثل في 200 غ كوزن اولي للخصلات ومسافة 30 صم بين الفصلات وجمع المحصول في اجل أقصاه آخر شهر جوان. في تلك الحالة يتطور وزن الخصلة من 200 غ إلى 1087 غ ونسجل 2,20 كمعدل نمو نوعي و 3,74 كغ في المتر المربع ككثافة نهائية.
    Description: Published
    Keywords: Gracilaria verrucosa ; Marine sciences ; Weight ; Algae ; Seaweed culture ; Aquaculture techniques
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed , Article
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 4
    facet.materialart.
    Unknown
    American Physical Society (APS)
    Publication Date: 2016-12-06
    Description: Author(s): Gabriel Farrugia and Jackson Levi Said We investigate the growth factor for subhorizon modes during late times in f ( T , T ) gravity, where T is the torsion scalar and T is the trace of the stress-energy tensor. This is achieved by obtaining the modified Mészáros equation, which describes the evolution of the perturbations of the matter ener… [Phys. Rev. D 94, 124004] Published Fri Dec 02, 2016
    Keywords: General relativity, alternative theories of gravity
    Print ISSN: 0556-2821
    Electronic ISSN: 1089-4918
    Topics: Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 5
    Publication Date: 2018-05-24
    Description: Author(s): Álvaro de la Cruz-Dombriz, Gabriel Farrugia, Jackson Levi Said, and Diego Sáez-Chillón Gómez In the context of extended teleparallel gravity theories with a 3 + 1 -dimensional Gauss-Bonnet analog term, we address the possibility of these theories reproducing several well-known cosmological bouncing scenarios in a four-dimensional Friedmann-Lemaître-Robertson-Walker geometry. We study which typ... [Phys. Rev. D 97, 104040] Published Wed May 23, 2018
    Keywords: General relativity, alternative theories of gravity
    Print ISSN: 0556-2821
    Electronic ISSN: 1089-4918
    Topics: Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 6
    Publication Date: 2018-07-19
    Description: Author(s): H. Miao, T. T. Zhang, L. Wang, D. Meyers, A. H. Said, Y. L. Wang, Y. G. Shi, H. M. Weng, Z. Fang, and M. P. M. Dean Condensed matter systems have now become a fertile ground to discover emerging topological quasiparticles with symmetry protected modes. While many studies have focused on fermionic excitations, the same conceptual framework can also be applied to bosons yielding new types of topological states. Mot... [Phys. Rev. Lett. 121, 035302] Published Wed Jul 18, 2018
    Keywords: Condensed Matter: Structure, etc.
    Print ISSN: 0031-9007
    Electronic ISSN: 1079-7114
    Topics: Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 7
    Publication Date: 2018-06-27
    Description: Author(s): Gabriel Farrugia, Jackson Levi Said, Viktor Gakis, and Emmanuel N. Saridakis We investigate the gravitational waves and their properties in various modified teleparallel theories, such as f ( T ) , f ( T , B ) , and f ( T , T G ) gravities. We perform the perturbation analysis both around a Minkowski background and in the case where a cosmological constant is present, and for clarity we use... [Phys. Rev. D 97, 124064] Published Tue Jun 26, 2018
    Keywords: General relativity, alternative theories of gravity
    Print ISSN: 0556-2821
    Electronic ISSN: 1089-4918
    Topics: Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 8
    Publication Date: 2016-09-14
    Description: Author(s): Ayman S. El-Said, Richard A. Wilhelm, Rene Heller, Michael Sorokin, Stefan Facsko, and Friedrich Aumayr Slow highly charged ions have been utilized recently for the creation of monotype surface nanostructures (craters, calderas, or hillocks) in different materials. In the present study, we report on the ability of slow highly charged xenon ions ( Xe 129 Q + ) to form three different types of nanostructures… [Phys. Rev. Lett. 117, 126101] Published Tue Sep 13, 2016
    Keywords: Condensed Matter: Structure, etc.
    Print ISSN: 0031-9007
    Electronic ISSN: 1079-7114
    Topics: Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 9
    facet.materialart.
    Unknown
    American Physical Society (APS)
    Publication Date: 2016-12-31
    Description: Author(s): Gabriel Farrugia and Jackson Levi Said In this paper, we investigate the stability of the flat Friedmann-Lemaitre-Robertson-Walker metric in f ( T ) gravity. This is achieved by analyzing the small perturbations, δ about the Hubble parameter and the matter energy density, δ m . We find that δ ∝ H ˙ / H and δ m ∝ H . Since the Hubble parameter depends … [Phys. Rev. D 94, 124054] Published Fri Dec 30, 2016
    Keywords: General relativity, alternative theories of gravity
    Print ISSN: 0556-2821
    Electronic ISSN: 1089-4918
    Topics: Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 10
    Publication Date: 2018-02-07
    Description: Author(s): Andronikos Paliathanasis, Jackson Levi Said, and John D. Barrow f ( T ) gravity theory offers an alternative context in which to consider gravitational interactions where torsion, rather than curvature, is the mechanism by which gravitation is communicated. We investigate the stability of the Kasner solution with several forms of the arbitrary Lagrangian function e... [Phys. Rev. D 97, 044008] Published Tue Feb 06, 2018
    Keywords: General relativity, alternative theories of gravity
    Print ISSN: 0556-2821
    Electronic ISSN: 1089-4918
    Topics: Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...