A Simple Link between Hydrocarbon and Borohydride Chemistries

2013 ◽  
Vol 19 (13) ◽  
pp. 4169-4175 ◽  
Author(s):  
Jordi Poater ◽  
Miquel Solà ◽  
Clara Viñas ◽  
Francesc Teixidor
Keyword(s):  
Simple Link

scholarly journals Shallow soil moisture – ground thaw interactions and controls – Part 1: Spatiotemporal patterns and correlations over a subarctic landscape

2010 ◽  
Vol 14 (7) ◽  
pp. 1375-1386 ◽  
Author(s):  
X. J. Guan ◽  
C. J. Westbrook ◽  
C. Spence
Keyword(s):  
Soil Moisture ◽  
Surface Soil ◽  
Companion Paper ◽  
Hydrological Models ◽  
Runoff Generation ◽  
Cold Regions ◽  
Shallow Soil ◽  
Thaw Depth ◽  
Study Sites ◽  
Simple Link

Abstract. Soil moisture and ground thaw state are both indicative of a hillslope's ability to transfer water. In cold regions, in particular, it is widely known that the depth of the active layer and wetness of surface soils are important for runoff generation, but the diversity of interactions between ground thaw and surface soil moisture themselves has not been studied. To fill this knowledge gap, detailed shallow soil moisture and thaw depth surveys were conducted along systematic grids at the Baker Creek Basin, Northwest Territories. Multiple hillslopes were studied to determine how the interactions differed along a spectrum of topological, typological and topographic situations across the landscape. Overall results did not show a simple link between soil moisture and ground thaw as was expected. Instead, correlation was a function of wetness. The interaction between soil moisture and ground thaw was more dependent at wetter sites. This indicates that interactive soil moisture and thaw depth behaviour on hillslopes in cold regions changes with location and cannot necessarily be lumped together in hydrological models. To explore further why these differences arise, a companion paper (Guan et al., 2010) will examine how the hydrological and energy fluxes influenced the patterns of moisture and thaw among the study sites.

scholarly journals Bicrystallography and Beyond: Example of Group–Subgroup Phase Transformations

Crystals ◽  
2020 ◽  
Vol 10 (7) ◽  
pp. 560
Author(s):  
Denis Gratias ◽  
Marianne Quiquandon
Keyword(s):  
Phase Transformations ◽  
Grain Boundaries ◽  
The Other ◽  
Permutation Groups ◽  
Global Symmetry ◽  
Simple Link

This paper presents the basic elementary tools for describing the global symmetry obtained by overlapping two or more crystal variants of the same structure, differently oriented and displaced one with respect to the other. It gives an explicit simple link between the concepts used in the symmetry studies on grain boundaries on one side and group–subgroup transformations on the other side. These questions are essentially of the same nature and boil down to the resolution of the same problem: identifying the permutation groups that are images of the corresponding applications. Examples are given from both domains, classical grain boundaries with coincidence lattices and group–subgroup phase transformations that illustrate the profound similarities between the two approaches.

A Pragmatic Coupling Strategy Between Commercial CFD and Structure Analysis Codes

2004 ◽  
Author(s):  
Brian L. Smith ◽  
Trevor V. Dury ◽  
Liping Ni ◽  
Alberto Zucchini
Keyword(s):  
Steady State Mode ◽  
Time Intervals ◽  
Software Packages ◽  
Coupled Codes ◽  
Coupling Strategy ◽  
Spallation Source ◽  
Computational Fluid Dynamics Cfd ◽  
Specialist Groups ◽  
Accident Sequences ◽  
Simple Link

The paper describes how a simple link has been established between the commercial Computational Fluid Dynamics (CFD) code CFX-4 and the two commercial structural analysis software packages ABAQUS and ANSYS. The interface has enabled separate, specialist groups to perform conjugate heat transfer and stress analysis computation within a common project, without the need to lease expensive interface software. The fluid/structure coupling operates primarily in steady-state mode, though transient coupling is possible at specified time intervals, provided there is no feed-back of the structural displacement on the thermal hydraulics. Illustrative examples are presented in the paper of how the coupled codes are being used to aid the design of a pilot spallation source target, and to analyze operational transients and accident sequences.

Mechanisms of calcium disposal from osteoclastic resorption hemivacuole

2003 ◽  
Vol 176 (1) ◽  
pp. 1-5 ◽  
Author(s):  
HK Datta ◽  
BR Horrocks
Keyword(s):  
Protein Degradation ◽  
Experimental Evidence ◽  
Matrix Protein ◽  
Degradation Products ◽  
Transcellular Transport ◽  
Osteoclastic Resorption ◽  
Osteoclast Function ◽  
Theoretical Considerations ◽  
Simple Link

One of the most remarkable but neglected aspects of osteoclast function is its unique adaptation that allows the cell to function despite its resorbing surface being exposed to extremely high levels of ambient Ca2+. Recently our studies have provided evidence of continuous transcellular Ca2+ disposal, suggesting that osteoclasts are able to prevent Ca2+ accumulation within the resorptive hemivacuole. It has also been shown that matrix protein degradation products that accumulate within the osteoclast resorptive vacuole are also undergoing transcellular transport by transcytosis. However, both experimental evidence and theoretical considerations suggest that transcellular transport of Ca2+ and matrix protein is likely to occur via distinct routes. In light of these considerations, we are able to provide convincing explanations for the apparent anomalies of osteoclast intracellular [Ca2+] responses to a variety of endocrine stimuli. The understanding of the mechanisms involved in Ca2+ handling by osteoclasts indicates the lack of a simple link between osteoclast function and changes in overall cytosolic [Ca2+].

scholarly journals Back Cover: A Simple Link between Hydrocarbon and Borohydride Chemistries (Chem. Eur. J. 13/2013)

2013 ◽  
Vol 19 (13) ◽  
pp. 4372-4372 ◽  
Author(s):  
Jordi Poater ◽  
Miquel Solà ◽  
Clara Viñas ◽  
Francesc Teixidor
Keyword(s):  
Back Cover ◽  
J 13 ◽  
Simple Link

UCrawler: A learning-based web crawler using a URL knowledge base

2020 ◽  
pp. 1-14
Author(s):  
Wei Wang ◽  
Lihua Yu
Keyword(s):  
Knowledge Base ◽  
Web Pages ◽  
Local Optimum ◽  
Specific Topic ◽  
Web Crawler ◽  
Vertical Search ◽  
Best First Search ◽  
Low Efficiency ◽  
Focused Crawlers ◽  
Simple Link

Focused crawlers, as fundamental components of vertical search engines, focus on crawling the web pages related to a specific topic. Existing focused crawlers commonly suffer from the problems of low efficiency of crawling pages and subject migration. In this paper, we propose a learning-based focused crawler using a URL knowledge base. To improve the accuracy of similarity, the similarity of the topic is measured with the parent page content, anchor information, and URL content. The URL content is also learned and updated iteratively and continuously. Within the crawler, we implement a crawling mechanism based on a combination of content analysis and simple link analysis crawler strategy, which decreases computational complexity and avoids the locality problem of crawling. Experimental results show that our proposed algorithm achieves a better precision than traditional methods including the shark-search and best-first search algorithms, and avoids the local optimum problem of crawling.

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