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  • 1
    Publication Date: 2016-07-01
    Print ISSN: 1742-6588
    Electronic ISSN: 1742-6596
    Topics: Physics
    Published by Institute of Physics
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  • 2
    Publication Date: 1996-08-01
    Print ISSN: 0031-8949
    Electronic ISSN: 1402-4896
    Topics: Physics
    Published by Institute of Physics
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  • 3
    Publication Date: 2020-07-08
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev
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  • 4
    Publication Date: 2021-05-19
    Description: Different kinds of freezing-point regulators were evaluated to expand the freezing point zone of large yellow croaker, and several treatment methods such as ordinary atmospheric pressure, vacuum environment and injection during the process of penetration were compared to reveal the relationship of diffusion velocities, diffusion time and freezing point of the large yellow croaker. Results obtained for ideal freezing-point regulators were as follows: Sodium chloride 2.5% (w/w), trehalose 2.5% (w/w) and edible alcohol 2.0% (w/w), which could decrease the freezing point from -1.5℃ to -4.2℃. Comparing with atmospheric pressure or vacuum degrees treatment, using injection method to deal with the freezing-point regulators could decrease the freezing point in a short time and benefit the meat quality.
    Description: Published
    Keywords: Fish disease ; Ice temperature preservation ; Control the freezing point ; Large yellow croaker
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp.446-456
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  • 5
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    In:  http://aquaticcommons.org/id/eprint/22879 | 18721 | 2018-05-31 20:46:53 | 22879 | Iranian Fisheries Science Research Institute
    Publication Date: 2021-07-11
    Description: Different kinds of freezing-point regulators were evaluated to expand the freezing point zone of large yellow croaker, and several treatment methods such as ordinary atmospheric pressure, vacuum environment and injection during the process of penetration were compared to reveal the relationship of diffusion velocities, diffusion time and freezing point of the large yellow croaker. Results obtained for ideal freezing-point regulators were as follows: Sodium chloride 2.5% (w/w), trehalose 2.5% (w/w) and edible alcohol 2.0% (w/w), which could decrease the freezing point from -1.5℃ to -4.2℃. Comparing with atmospheric pressure or vacuum degrees treatment, using injection method to deal with the freezing-point regulators could decrease the freezing point in a short time and benefit the meat quality.
    Keywords: Chemistry ; Fisheries ; Ice temperature preservation ; Control the freezing point ; Large yellow croaker ; China
    Repository Name: AquaDocs
    Type: article , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 446-456
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  • 6
    Publication Date: 2021-11-12
    Description: In addition to the standard description of the structures and textures of crystalline rocks the mathematical approaches have been proposed based on a rigorous determination of the petrographic structure through the probabilities of binary intergrain contacts. In general, the petrographic structure is defined as an invariant aspect of rock organization, algebraically expressed by the canonical diagonal form of the symmetric Pij matrix and geometrically visualized by structural indicatrices – surfaces of the 2nd order. The agreed nomenclature of possible petrographic structures for an n-mineral rock is simple: the symbol Snm means that there are exactly m positive numbers in the canonical diagonal form of the Pij matrix. New types of barycentric diagrams have been proposed. To describe the massive texture, the concept of Hardy – Weinberg equilibrium has been proposed. This boundary classifies barycentric diagrams into areas within which canonical types of Рij matrices and topological types of structural indicatrices are preserved. The change in the organization of the rock within a type is quantitative, the transition from one type to another means structural restructuring. The methods are used to describe ijolites and urtites of the Khibiny massif, the Kola Peninsula. In the modern taxonomy of rocks, the boundaries between them are mostly conditional and are drawn according to the contents of rock-forming minerals, for example, between ijolites and urtites – according to the contents of nepheline and pyroxene. The strict definition of the petrographic structure proposed by the authors makes it possible to introduce into petrography the constitutional principle (structure + composition), which is successfully acting in mineralogy.
    Description: В дополнение к стандартному описанию структур и текстур кристаллических горных пород предложены математические подходы, основанные на строгом определении петрографической структуры через вероятности бинарных межзерновых контактов. В общем случае петрографическая структура определена как инвариантный аспект организации горной породы, алгебраически выражаемый канонической диагональной формой симметрической матрицы Pij и геометрически визуализуемый структурными индикатрисами – поверхностями 2-го порядка. Согласованная номенклатура возможных петрографических структур для n-минеральной горной породы проста: символ Snm означает, что в канонической диагональной форме матрицы Рij ровно m положительных чисел. Представлены новые типы барицентрических диаграмм. Для описания массивной текстуры предложена концепция равновесия Харди – Вайнберга. Эта граница классифицирует барицентрические диаграммы на области, в пределах которых сохраняются канонические типы матриц Рij и топологические типы структурных индикатрис. Изменение организации горной породы в пределах типа носит количественный характер, переход от одного типа к другому означает структурную перестройку. Методы использованы для описания ийолитов и уртитов Хибинского массива, Кольский полуостров. В современной систематике горных пород границы между ними большей частью условные и проводятся по содержаниям породообразующих минералов, например, между ийолитами и уртитами – по содержанию нефелина и пироксена. Предлагаемое авторами строгое определение петрографической структуры позволяет ввести в петрографию конституционный принцип (структура + состав), успешно действующий в минералогии.
    Description: Published
    Description: Refereed
    Keywords: Ijolite ; Urtite ; Hardy–Weinberg equilibrium ; Ийолит ; Уртит ; Равновесие Харди–Вайнберга ; Mathematical models ; Petrographic structure ; Математические модели ; Петрографическая структура ; ASFA_2015::E::Earth sciences ; ASFA_2015::G::Geology ; ASFA_2015::R::Rock properties ; ASFA_2015::R::Rocks ; ASFA_2015::P::Probability theory
    Repository Name: AquaDocs
    Type: Journal Contribution
    Format: pp.160-167
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  • 7
    Publication Date: 2021-12-15
    Description: Life on Earth vitally depends on the availability of water. Human pressure on freshwater resources is increasing, as is human exposure to weather-related extremes (droughts, storms, floods) caused by climate change. Understanding these changes is pivotal for developing mitigation and adaptation strategies. The Global Climate Observing System (GCOS) defines a suite of essential climate variables (ECVs), many related to the water cycle, required to systematically monitor Earth’s climate system. Since long-term observations of these ECVs are derived from different observation techniques, platforms, instruments, and retrieval algorithms, they often lack the accuracy, completeness, and resolution, to consistently characterize water cycle variability at multiple spatial and temporal scales. Here, we review the capability of ground-based and remotely sensed observations of water cycle ECVs to consistently observe the hydrological cycle. We evaluate the relevant land, atmosphere, and ocean water storages and the fluxes between them, including anthropogenic water use. Particularly, we assess how well they close on multiple temporal and spatial scales. On this basis, we discuss gaps in observation systems and formulate guidelines for future water cycle observation strategies. We conclude that, while long-term water cycle monitoring has greatly advanced in the past, many observational gaps still need to be overcome to close the water budget and enable a comprehensive and consistent assessment across scales. Trends in water cycle components can only be observed with great uncertainty, mainly due to insufficient length and homogeneity. An advanced closure of the water cycle requires improved model–data synthesis capabilities, particularly at regional to local scales.
    Language: English
    Type: info:eu-repo/semantics/article
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  • 8
    Publication Date: 2020-12-14
    Description: Postrift subsidence of sedimentary basins in the northern margin of the South China Sea exceeds more than 2,.000 m, which points toward anomalous postrift crustal deformation. Previous studies have proposed lower crustal flow to explain this observation; however, this hypothesis has never been confirmed quantitatively. Here, we calculate the initial crustal structure and thermal lithospheric thickness of the northern margin of the South China Sea on the basis of recently measured heat flow data, tectonic subsidence curves, and present‐day crustal structure. Crustal thinning processes during rifting and reduced thickness of the lower crust in the postrift are also calculated by the strain rate inversion method and thermal isostasy. Our results show that the initial (Early Cenozoic) crustal thickness of the northern margin of the South China Sea varies between 27.7 and 36.3 km, and the average proportion of the lower crust is 67%. The initial thermal lithospheric thicknesses decrease from ~118 to ~81 km from the shelf to the sea, which indicates that the offshore margin has high temperatures and low strength and is more easily stretched and deformed. The average stretching factor the margin during rifting is 1.24. The lower crust reduces in thickness during the postrift phase by values between 1 and 11 km, which increases gradually from the shelf to deep water. We suggest that the thicker weak crust and hot lithospheric structure therefore make positive contribution to the lower crustal flow, the direction of which is from the oceanic basin to the shelf.
    Language: English
    Type: info:eu-repo/semantics/article
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  • 9
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    In:  XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG)
    Publication Date: 2023-07-01
    Description: Interdecadal Pacific Oscillation (IPO) and the Atlantic Multidecadal Oscillation (AMO) has been found to be important to the Amundsen Sea Low (ASL) and zonally asymmetric changes in Antarctic surface air temperature that cannot be explained by anthropogenic forcing. However, most studies focus only on the joint impact of the opposite phase of AMO and IPO which prevailed during the satellite era since 1979. In this study, we utilize long-term reanalysis data to examine the effect of the four combinations of +AMO+IPO, -AMO-IPO, +AMO-IPO, and -AMO+IPO on the Antarctic surface air temperature during the past more than 100 years. During the period of +AMO+IPO and +AMO-IPO, Antarctic SAT shows an opposite distribution. And during the period of -AMO+IPO, with the exception of the Antarctic Peninsula and near the Weddell Sea, the Antarctic region as a whole is warming. The strongest signal of the SAT anomalies is for the season of austral autumn (AMJ), while the smallest magnitude compared with the other three phases is for the -AMO and -IPO. The wavetrain excited by the SST anomalies associated with IPO and AMO induces upper-level and surface atmospheric circulation anomalies, that change the SAT distribution. Also, downward longwave radiation anomalies related to the anomalous cloud cover plays a role.
    Language: English
    Type: info:eu-repo/semantics/conferenceObject
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  • 10
    Publication Date: 2023-02-13
    Type: info:eu-repo/semantics/article
    Format: application/pdf
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