ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

X
feed icon rss

Your email was sent successfully. Check your inbox.

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

Proceed reservation?

Export
  • 1
    facet.materialart.
    Unknown
    An improved hindcast approach for evaluation and diagnosis of physical processes in global climate models (2015)
    Wiley
    Details
    Publication Date: 2015-10-20
    Description: We present an improved procedure of generating initial conditions (ICs) for climate model hindcast experiments with specified sea surface temperature and sea ice. The motivation is to minimize errors in the ICs and lead to a better evaluation of atmospheric parameterizations' performance in the hindcast mode. We apply state variables (horizontal velocities, temperature and specific humidity) from the operational analysis/reanalysis for the atmospheric initial states. Without a data assimilation system, we apply a two-step process to obtain other necessary variables to initialize both the atmospheric (e.g., aerosols and clouds) and land models (e.g., soil moisture). First, we nudge only the model horizontal velocities towards operational analysis/reanalysis values, given a 6-hour relaxation time scale, to obtain all necessary variables. Compared to the original strategy in which horizontal velocities, temperature and specific humidity are nudged, the revised approach produces a better representation of initial aerosols and cloud fields which are more consistent and closer to observations and model's preferred climatology. Second, we obtain land ICs from an offline land model simulation forced with observed precipitation, winds, and surface fluxes. This approach produces more realistic soil moisture in the land ICs. With this refined procedure, the simulated precipitation, clouds, radiation, and surface air temperature over land are improved in the Day 2 mean hindcasts. Following this procedure, we propose a “Core” integration suite which provides an easily repeatable test allowing model developers to rapidly assess the impacts of various parameterization changes on the fidelity of modelled cloud-associated processes relative to observations. This article is protected by copyright. All rights reserved.
    Electronic ISSN: 1942-2466
    Topics: Geography , Geosciences
    Published by Wiley on behalf of American Geophysical Union (AGU).
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 2
    facet.materialart.
    Unknown
    Artificially engineered Heusler ferrimagnetic superlattice exhibiting perpendicular magnetic anisotropy (2015)
    Springer Nature
    Details
    Publication Date: 2015-01-20
    Description: To extend density limits in magnetic recording industry, two separate strategies were developed to build the storage bit in last decade, introduction of perpendicular magnetic anisotropy (PMA) and adoption of ferrimagnetism/antiferromagnetism. Meanwhile, these properties significantly improve device performance, such as reducing spin-transfer torque energy consumption and decreasing signal-amplitude-loss. However, materials combining PMA and antiferromagnetism rather than transition-metal/rare-earth system were rarely developed. Here, we develop a new type of ferrimagnetic superlattice exhibiting PMA based on abundant Heusler alloy families. The superlattice is formed by [MnGa/Co2FeAl] unit with their magnetizations antiparallel aligned. The effective anisotropy (Kueff) over 6 Merg/cm3 is obtained, and the SL can be easily built on various substrates with flexible lattice constants. The coercive force, saturation magnetization and Kueff of SLs are highly controllable by varying the thickness of MnGa and Co2FeAl layers. The SLs will supply a new choice for magnetic recording and spintronics memory application such as magnetic random access memory. Scientific Reports 5 doi: 10.1038/srep07863
    Electronic ISSN: 2045-2322
    Topics: Natural Sciences in General
    Published by Springer Nature
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 3
    facet.materialart.
    Unknown
    MeCP2 SUMOylation rescues Mecp2-mutant-induced behavioural deficits in a mouse model of Rett syndrome (2016)
    Springer Nature
    Details
    Publication Date: 2016-02-06
    Description: Article Post-translational modifications of methyl-CpG-binding protein 2 (MeCP2) are important for its function and dysfunction in Rett syndrome. Here, Tai et al . show a functional interaction between MeCP2 SUMOylation and phosphorylation in rodent behavior and synaptic plasticity. Nature Communications doi: 10.1038/ncomms10552 Authors: Derek J. C. Tai, Yen C. Liu, Wei L. Hsu, Yun L. Ma, Sin J. Cheng, Shau Y. Liu, Eminy H. Y. Lee
    Electronic ISSN: 2041-1723
    Topics: Biology , Chemistry and Pharmacology , Natural Sciences in General , Physics
    Published by Springer Nature
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 4
    facet.materialart.
    Unknown
    IRAK1 mediates TLR4-induced ABCA1 downregulation and lipid accumulation in VSMCs (2015)
    Springer Nature
    Details
    Publication Date: 2015-10-30
    Description: IRAK1 mediates TLR4-induced ABCA1 downregulation and lipid accumulation in VSMCs Cell Death and Disease 6, e1949 (October 2015). doi:10.1038/cddis.2015.212 Authors: L Guo, C-H Chen, L-L Zhang, X-J Cao, Q-L Ma, P Deng, G Zhu, C-Y Gao, B-H Li, Y Pi, Y Liu, Z-C Hu, L Zhang, Z-P Yu, Z Zhou & J-C Li
    Electronic ISSN: 2041-4889
    Topics: Biology , Medicine
    Published by Springer Nature
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 5
    facet.materialart.
    Unknown
    The importance of a Ni correction with ion counter in the double spike analysis of Fe isotope compositions using a 57Fe/58Fe double spike (2015)
    Wiley
    Details
    Publication Date: 2015-10-30
    Description: We present a new method capable of measuring iron isotope ratios of igneous materials to high precision by multicollector inductively coupled plasma mass spectrometry (MC-ICP-MS) using a 57 Fe- 58 Fe double spike. After sample purification, near-baseline signal levels of nickel are still present in the sample solution, acting as an isobaric interference on 58 amu. To correct for the interference, the minor 60 Ni isotope is monitored and used to subtract a proportional 58 Ni signal from the total 58 amu beam. The 60 Ni signal is difficult to precisely measure on the Faraday detector due to Johnson noise occurring at similar magnitude. This noise-dominated signal is subtracted from the total 58 amu beam, and its error amplified during the double spike correction. Placing the 60 Ni beam on an ion counter produces a more precise measurement, resulting in a near-threefold improvement in δ 56 Fe reproducibility, from ±0.145‰ when measured on Faraday to 0.052‰. Faraday detectors quantify the 60 Ni signal poorly, and fail to discern the transient 20 Ne 40 Ar interference visible on the ion counter, which is likely responsible for poor reproducibility. Another consideration is instrumental stability (defined herein as drift in peak center mass), which affects high resolution analyses. Analyses experiencing large drift relative to bracketing standards often yield non-replicating data. Based on this, we present a quantitative outlier detection method capable of detecting drift-affected data. After outlier rejection, long-term precision on individual runs of our secondary standard improves to ±0.046‰. Averaging 3-4 analyses further improves precision to 0.019‰, allowing distinction between ultramafic minerals. This article is protected by copyright. All rights reserved.
    Electronic ISSN: 1525-2027
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Published by Wiley on behalf of American Geophysical Union (AGU).
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 6
    facet.materialart.
    Unknown
    Static Formation and Dissociation of Methane+Methylcyclohexane Hydrate for Gas Hydrate Production and Regasification (2011)
    Wiley
    Details
    Publication Date: 2011-07-29
    Description: The formation and decomposition of methane+methylcyclohexane (MCH) hydrate in a static batch reactor, which was also designed as a high-pressure microwave reactor, were investigated. The addition of 300 ppm sodium dodecyl sulfate (SDS) provides continuous formation of CH 4 +MCH hydrate under static conditions. Increasing the initial pressure within the narrow range of 2.7 to 4.6 MPa at 274 K enhances the formation rate by even several times. The gas storage capacity can be largely improved with partial coexisting of sI CH 4 hydrate. Unlike a stirred formation, an increase of nonaqueous MCH inhibits the static formation of sH hydrate. The following regasification by 2.45 GHz microwave heating indicates that the dissociation is rate-controlled by the parallel connection of efficient internal heating and conventional external heating. The multiphase convection characterized by osmotic dehydration and driven by intensified regasification is considered as the dominant mechanism affecting the quiescent dissociation. Enhanced quiescent production and regasification of sH gas hydrate are key aspects for industrial applications of gas hydrate storage and transportation. The decisive factors influencing the static formation and regasification of methane +methyl- cyclohexane hydrate using sodium dodecyl sulfate and 2.45 GHz microwave heating were evaluated. Multiphase convection is considered as the dominant mechanism affecting the quiescent dissociation.
    Print ISSN: 0930-7516
    Electronic ISSN: 1521-4125
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Published by Wiley
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 7
    facet.materialart.
    Unknown
    Rapid reuptake of granzyme B leads to emperitosis: an apoptotic cell-in-cell death of immune killer cells inside tumor cells (2013)
    Springer Nature
    Details
    Publication Date: 2013-10-11
    Description: Rapid reuptake of granzyme B leads to emperitosis: an apoptotic cell-in-cell death of immune killer cells inside tumor cells Cell Death and Disease 4, e856 (October 2013). doi:10.1038/cddis.2013.352 Authors: S Wang, M-f He, Y-h Chen, M-y Wang, X-m Yu, J Bai, H-y Zhu, Y-y Wang, H Zhao, Q Mei, J Nie, J Ma, J-f Wang, Q Wen, L Ma, Y Wang & X-n Wang
    Keywords: apoptotic cell-in-cell deathemperitosisimmune cytotoxic cellsgranzyme Bvacuole formation
    Electronic ISSN: 2041-4889
    Topics: Biology , Medicine
    Published by Springer Nature
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 8
    facet.materialart.
    Unknown
    SIRT1 and SIRT2 inhibition impairs pediatric soft tissue sarcoma growth (2014)
    Springer Nature
    Details
    Publication Date: 2014-10-24
    Description: SIRT1 and SIRT2 inhibition impairs pediatric soft tissue sarcoma growth Cell Death and Disease 5, e1483 (October 2014). doi:10.1038/cddis.2014.385 Authors: L Ma, W Maruwge, A Strambi, P D'Arcy, P Pellegrini, L Kis, A de Milito, S Lain & B Brodin
    Electronic ISSN: 2041-4889
    Topics: Biology , Medicine
    Published by Springer Nature
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 9
    facet.materialart.
    Unknown
    Controlling spin-dependent tunneling by bandgap tuning in epitaxial rocksalt MgZnO films (2014)
    Springer Nature
    Details
    Publication Date: 2014-12-03
    Description: Widespread application of magnetic tunnel junctions (MTJs) for information storage has so far been limited by the complicated interplay between tunnel magnetoresistance (TMR) ratio and the product of resistance and junction area (RA). An intricate connection exists between TMR ratio, RA value and the bandgap and crystal structure of the barrier, a connection that must be unravelled to optimise device performance and enable further applications to be developed. Here, we demonstrate a novel method to tailor the bandgap of an ultrathin, epitaxial Zn-doped MgO tunnel barrier with rocksalt structure. This structure is attractive due to its good Δ1 spin filtering effect, and we show that MTJs based on tunable MgZnO barriers allow effective balancing of TMR ratio and RA value. In this way spin-dependent transport properties can be controlled, a key challenge for the development of spintronic devices. Scientific Reports 4 doi: 10.1038/srep07277
    Electronic ISSN: 2045-2322
    Topics: Natural Sciences in General
    Published by Springer Nature
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 10
    facet.materialart.
    Unknown
    The Wyckoff positional order and polyhedral intergrowth in the M3B2- and M5B3-type boride precipitated in the Ni-based superalloys (2014)
    Springer Nature
    Details
    Publication Date: 2014-12-09
    Description: Ni-based single superalloys play a crucial role in the hottest parts of jet engines. However, due to the complex geometry and macro-segregation during the solidification process, the cast defect such as stray grains is inevitable. Therefore, the transient liquid phase (TLP) bonding which can join several small single crystalline castings together is gradually believed to be an effective method for improving the yields of production of the complex components. The melting point depressant element B is always added into the interlayer filler material. Consequently, borides including the M3B2 and M5B3 phase usually precipitate during the TLP bonding process. So a comprehensive knowledge of the fine structural characteristics of the borides is very critical for an accurate evaluation of the TLP bonding process. In this work, by means of the aberration-corrected transmission electron microscopy, we show, at an atomic scale, the Wyckoff positional order phenomenon of the metal atoms in the unit cell of M3B2- and M5B3-type boride. Meanwhile, the defect along the (001) plane of the above two types of boride are determined to be the polyhedral intergrowth with complex configurations. Scientific Reports 4 doi: 10.1038/srep07367
    Electronic ISSN: 2045-2322
    Topics: Natural Sciences in General
    Published by Springer Nature
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...