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
    Sustainability, Vol. 8, Pages 509: Networked or Un-Networked? A Preliminary Study on KIBS-Based Sustainable Urban Development: The Case of China (2016)
    MDPI Publishing
    Details
    Publication Date: 2016-05-28
    Description: Increasingly pertinent linkages of cities via knowledge intensive business services (KIBS) in the 21st century have opened a new window for academia to reconsider the approach to achieving urban sustainability. In this study, city network was investigated with an aim of identifying its attributes in the framework of sustainable urban development. Data about China’s KIBS, which are compiled in an inter-regional input–output table, were calculated following the procedure of social network analysis. It was found that: (1) the degree of nodes (i.e., out-degree, in-degree and betweenness) in China varies distinctively from city to city; (2) the hierarchy of the city network is very tiny; and (3) that the network structure is subject to both “a small world” and core–periphery effects. Furthermore, city nodes in China fall into four categories, namely high centrality and power, high centrality and low power, low centrality and high power, and low centrality and power. The implication is that governmental efforts should be made to secure a reasonable decentralization of key city nodes to ensure that urban sustainability is built on a city-to-city basis.
    Electronic ISSN: 2071-1050
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Published by MDPI Publishing
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 2
    facet.materialart.
    Unknown
    Functional Analysis of GLRX5 Mutants Reveals Distinct Functionalities of GLRX5 Protein (2015)
    Wiley
    Details
    Publication Date: 2015-06-23
    Description: Glutaredoxin 5 (GLRX5) is a 156 amino acid mitochondrial protein that plays an essential role in mitochondrial iron-sulfur cluster transfer. Mutations in this protein were reported to result in sideroblastic anemia and variant nonketotic hyperglycinemia in human. Recently, we have characterized a Chinese congenital sideroblastic anemia patient who has two compound heterozygous missense mutations (c. 301 A〉C and c. 443 T〉C) in his GLRX5 gene. Herein, we developed a GLRX5 knockout K562 cell line and studied the biochemical functions of the identified pathogenic mutations and other conserved amino acids with predicted essential functions. We observed that the K101Q mutation (due to c. 301 A〉C mutation) may prevent the binding of [Fe-S] to GLRX5 protein, while L148S (due to c. 443 T〉C mutation) may interfere with [Fe-S] transfer from GLRX5 to iron regulatory protein 1 (IRP1), mitochondrial aconitase (m-aconitase) and ferrochelatase. We also demonstrated that L148S is functionally complementary to the K51del mutant with respect to Fe/S-ferrochelatase, Fe/S-IRP1, Fe/S-succinate dehydrogenase and Fe/S-m-aconitase biosynthesis and lipoylation of pyruvate dehydrogenase complex and α-ketoglutarate dehydrogenase complex. Furthermore, we demonstrated that the mutations of highly conserved amino acid residues in GLRX5 protein can have different effects on downstream Fe/S proteins. Collectively, our current work demonstrates that GLRX5 protein is multifunctional in [Fe-S] protein synthesis and maturation and defects of the different amino acids of the protein will lead to distinct effects on downstream Fe/S biosynthesis. This article is protected by copyright. All rights reserved
    Electronic ISSN: 0091-7419
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Published by Wiley
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 3
    facet.materialart.
    Unknown
    Sustainability, Vol. 6, Pages 6250-6266: Model Estimation of Water Use Efficiency for Soil Conservation in the Lower Heihe River Basin, Northwest China during 2000–2008 (2014)
    MDPI Publishing
    Details
    Publication Date: 2014-09-13
    Description: There has been very limited research on water use efficiency for soil conservation (WUE-SC) in typical water scarce regions such as the lower Heihe River Basin, where there is serious wind erosion and the soil conservation service plays a key role in guaranteeing the ecological safety of Northern China. The soil conservation service, which was represented by the soil conservation amount (SC), was first estimated with an experiment-based model in this study. Then, the WUE-SC (i.e., SC/ET) was calculated on the basis of evapotranspiration (ET) data, and management implications were finally discussed. The results indicated the WUE-SC ranged between 0–98.69 t mm−1, and it first decreased and then increased on the whole during 2000–2008. Besides, the inter-annual variation of WUE-SC was mainly due to change in the potential soil loss. In addition, the WUE-SC showed significant spatial heterogeneity, and the average WUE-SC of the whole study area was very low due to spatiotemporal inconsistency between the potential soil loss and the vegetation coverage rate. Although there are some uncertainties, these results still can provide local managers with valuable information for water resource utilization and ecosystem management to improve water use efficiency.
    Electronic ISSN: 2071-1050
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Published by MDPI Publishing
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 4
    facet.materialart.
    Unknown
    Fouling Resistance on Chemically Etched Hydrophobic Surfaces in Nucleate Pool Boiling (2015)
    Wiley
    Details
    Publication Date: 2015-01-09
    Description: Chemical etching, liquid phase deposition, and dipping techniques were utilized to fabricate highly hydrophobic micro- and nanoscale coating surfaces on stainless-steel substrates. Heat transfer and fouling characteristics on these surfaces in pool boiling of deionized water and CaSO 4 solution were studied. High roughness and hydrophobicity of coated surfaces were obtained on chemically etched substrates. Compared to the polished stainless-steel surface, the chemically etched coating surface provided a three times enhanced nucleate boiling coefficient at high heat flux. Obvious decrease of CaSO 4 fouling resistance was obtained on chemically etched surfaces due to the higher roughness and hydrophobicity before the fouling resistance reaches the asymptotic value. Slightly high asymptotic fouling resistance was observed compared with coating surfaces without chemical etching of substrates. Surface topography and chemistry modifications are commonly applied to improve the pool boiling and anti-fouling performance of surfaces. Rough surfaces could enhance pool boiling but show higher fouling resistance. Highly hydrophobic micro- and nano-scale coating surfaces on stainless-steel substrates were fabricated and their performance in a pool boiling process was evaluated.
    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
  • 5
    facet.materialart.
    Unknown
    Shape Anisotropy, Exchange-Coupling Interaction and Microwave Absorption of Hard/Soft Nanocomposite Ferrite Microfibers (2012)
    Wiley
    Details
    Publication Date: 2012-08-14
    Description: The nanocomposite BaFe 12 O 19 (BFO)/ Ni 0.5 Zn 0.5 Fe 2 O 4 (NZFO)-aligned microfibers with diameters 0.8–2 μm and high aspect ratios have been prepared by the gel precursor transformation process, where BFO is the hard magnetic phase and NZFO the soft magnetic phase. The nanocomposite binary ferrites are formed after the gel precursor calcined at 1000°C for 3 h. These nanocomposite aligned microfibers exhibit a clear shape anisotropy. Their magnetic difference observed at 297 and 77 K largely arises from the competition of exchange-coupling interaction and thermal fluctuation on dipolar interaction. Consequently, their microwave absorption performance is largely influenced by the mass ratio of BFO/NZFO and specimen thickness. When the mass ratio (BFO:NZFO) is 7:3 and the specimen thickness is 3 mm, the minimum reflection loss (RL) reaches the optimized RL value of −35.5 dB at 12.4 GHz, with a wide absorption bandwidth (the RL value over −20 dB) from 9.1 to 15.7 GHz, which covers 80% of X -band (8.2–12.4 GHz) and 59% of Ku -band (12.4–18.0 GHz). This improvement in microwave absorption can be attributed to the exchange-coupling interaction, shape anisotropy, interfacial polarization, and small size effect in nanocomposite microfibers.
    Print ISSN: 0002-7820
    Electronic ISSN: 1551-2916
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Published by Wiley
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 6
    facet.materialart.
    Unknown
    Energies, Vol. 11, Pages 2538: Experimental Research on the Structural Behavior of Fractured Coal under Uniaxial Compression (2018)
    MDPI Publishing
    In: Energies
    Details
    Publication Date: 2018-09-24
    Description: Energies, Vol. 11, Pages 2538: Experimental Research on the Structural Behavior of Fractured Coal under Uniaxial Compression Energies doi: 10.3390/en11102538 Authors: Dongjie Xue Hongwei Zhou Jianfeng Liu Jie Zhou Yintong Liu Yongwei Zhao Liao Zhang Tests of the effects of uniaxial compression on the structural behavior of fractured coals were conducted. The structural behavior is different from the material behavior of intact samples and the discontinuous behavior based on the block theory. It is a macro response of continuous-discontinuous behavior in coal with varied fracture structure geometry, and includes the material behavior with cracking and contact behavior with sliding. The structural behavior is studied based on the complete stress-strain curve, the material parameters, i.e. elastic modulus, Poisson’s ratio, and compression strength, and the structural integrity parameters, i.e. longitudinal and shear wave velocity, and the physical parameter, i.e. density. All the parameters are compared with the different fracture patterns. Various types of parameter degradation damage are defined to describe the structural characteristics with the different fracture patterns. They shows the effective relation of damage with strength. Furthermore, the mechanisms of the structural modulus degradation, structural failure deformation, and structural strength evolution are discussed. The results show that the post-peak behavior can be defined as the structural behavior. With the structural formation-reloading failure cycle, the mutual conversion changes between structural geometry instability and stability, and the characteristics are stress drops or stress platforms generated by structural rebalance. It is pointed out that the post-peak unloading is a macro response of the structural geometry. It includes the recovery of elastic strain and structural resilience strain, and structural stress drop.
    Electronic ISSN: 1996-1073
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Published by MDPI Publishing
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 7
    facet.materialart.
    Unknown
    Estimation of design flood using EWT and ENE metrics and uncertainty analysis under non-stationary conditions (2017)
    Springer
    Details
    Publication Date: 2017-03-22
    Print ISSN: 1436-3240
    Electronic ISSN: 1436-3259
    Topics: Architecture, Civil Engineering, Surveying , Energy, Environment Protection, Nuclear Power Engineering , Geography , Geosciences
    Published by Springer
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 8
    facet.materialart.
    Unknown
    Numerical study on the effect of rocket plume to the jet flow deflector in liquid rocket engine test stage (2019)
    Institute of Physics
    Details
    Publication Date: 2019-08-01
    Print ISSN: 1742-6588
    Electronic ISSN: 1742-6596
    Topics: Physics
    Published by Institute of Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 9
    facet.materialart.
    Unknown
    Global Characterization of GH10 Family Xylanase Genes in Rhizoctonia cerealis and Functional Analysis of Xylanase RcXYN1 During Fungus Infection in Wheat (2020)
    Molecular Diversity Preservation International
    Details
    Publication Date: 2020-03-06
    Description: Wheat (Triticum aestivum L.) is an important staple crop. Rhizoctonia cerealis is the causal agent of diseases that are devastating to cereal crops, including wheat. Xylanases play an important role in pathogenic infection, but little is known about xylanases in R. cerealis. Herein, we identified nine xylanase-encoding genes from the R. cerealis genome, named RcXYN1–RcXYN9, examined their expression patterns, and investigated the pathogenicity role of RcXYN1. RcXYN1–RcXYN9 proteins contain two conserved glutamate residues within the active motif in the glycoside hydrolase 10 (GH10) domain. Of them, RcXYN1–RcXYN4 are predicted to be secreted proteins. RcXYN1–RcXYN9 displayed different expression patterns during the infection process of wheat, and RcXYN1, RcXYN2, RcXYN5, and RcXYN9 were expressed highly across all the tested inoculation points. Functional dissection indicated that the RcXYN1 protein was able to induce necrosis/cell-death and H2O2 generation when infiltrated into wheat and Nicotiana benthamiana leaves. Furthermore, application of RcXYN1 protein followed by R. cerealis led to significantly higher levels of the disease in wheat leaves than application of the fungus alone. These results demonstrate that RcXYN1 acts as a pathogenicity factor during R. cerealis infection in wheat. This is the first investigation of xylanase genes in R. cerealis, providing novel insights into the pathogenesis mechanisms of R. cerealis.
    Print ISSN: 1661-6596
    Electronic ISSN: 1422-0067
    Topics: Chemistry and Pharmacology
    Published by Molecular Diversity Preservation International
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 10
    facet.materialart.
    Unknown
    Correlation between Microstructure and Mechanical Properties of Heat-Treated Ti–6Al–4V with Fe Alloying (2020)
    Molecular Diversity Preservation International
    Details
    Publication Date: 2020-06-28
    Description: The microstructure and mechanical properties of a newly developed Fe-microalloyed Ti–6Al–4V titanium alloy were investigated after different heat treatments. The volume fraction and the morphological features of the lamellar α phase had significant effects on the alloy’s mechanical performance. A dataset showing the relationship between microstructural features and tensile strength, elongation, and fracture toughness was developed. A high aging temperature resulted in high plasticity and fracture toughness, but relatively low strength. The high strength favored the fine α and the slender β. The high aspect ratio of lamellar α led to high strength but low fracture toughness. The alloy with ~84 vol % α exhibited the highest strength and lowest fracture toughness because the area of its α/β-phase interface was the highest. Optimal comprehensive mechanical performance and heat-treatment procedures were thus obtained from the dataset. Optimal tensile strength, yield strength, elongation, and fracture toughness were 999 and 919 MPa, 10.4%, and 94.4 MPa·m1/2, respectively.
    Electronic ISSN: 2075-4701
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Published by Molecular Diversity Preservation International
    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...