The Experts below are selected from a list of 223158 Experts worldwide ranked by ideXlab platform

Susanne Norgren - One of the best experts on this subject based on the ideXlab platform.

  • study of tool wear and Chemical Interaction during machining of ti6al4v
    International Journal of Refractory Metals & Hard Materials, 2018
    Co-Authors: Bartek Kaplan, S Odelros, M Kritikos, R Bejjani, Susanne Norgren
    Abstract:

    Abstract The present study concerns an investigation of the wear on three uncoated cemented carbide grades, with differing binder content and grain size, during longitudinal turning of Ti6Al4V as a function of cutting speed. The creater wear at end of tool life is studied in detail using electron microscopy and X-ray diffraction. It is observed that decreasing binder content results in slower wear progression and longer tool life. The microstructure of the adhered layer is also dependent on the binder content, where a lower amount of binder results in an increase of dark precipitates in the adhered layer. X-ray diffraction confirms the presence of bcc-W as a Chemical wear product at the interface. Diffraction peaks corresponding to cubic (Ti,V)C are also occasionally observed.

Michael Kuhn - One of the best experts on this subject based on the ideXlab platform.

  • stitch 5 augmenting protein Chemical Interaction networks with tissue and affinity data
    Nucleic Acids Research, 2016
    Co-Authors: Damian Szklarczyk, Alberto Santos, Christian Von Mering, Lars Juhl Jensen, Peer Bork, Michael Kuhn
    Abstract:

    Interactions between proteins and small molecules are an integral part of biological processes in living organisms. Information on these Interactions is dispersed over many databases, texts and prediction methods, which makes it difficult to get a comprehensive overview of the available evidence. To address this, we have developed STITCH (‘Search Tool for Interacting Chemicals’) that integrates these disparate data sources for 430 000 Chemicals into a single, easy-to-use resource. In addition to the increased scope of the database, we have implemented a new network view that gives the user the ability to view binding affinities of Chemicals in the Interaction network. This enables the user to get a quick overview of the potential effects of the Chemical on its Interaction partners. For each organism, STITCH provides a global network; however, not all proteins have the same pattern of spatial expression. Therefore, only a certain subset of Interactions can occur simultaneously. In the new, fifth release of STITCH, we have implemented functionality to filter out the proteins and Chemicals not associated with a given tissue. The STITCH database can be downloaded in full, accessed programmatically via an extensive API, or searched via a redesigned web interface at http://stitch.embl.de.

Robert Glinwood - One of the best experts on this subject based on the ideXlab platform.

  • Chemical Interaction between undamaged plants
    2011
    Co-Authors: Robert Glinwood, Velemir Ninkovic, Jan Pettersson
    Abstract:

    Most research on plant–plant Chemical Interactions has focussed on events following herbivore or pathogen attack. However, undamaged plants also interact Chemically as a natural facet of their behaviour, and this may have consequences for insects that use the plants as hosts. In this review, the links between allelopathy and insect behaviour are outlined. Findings on how Chemical Interactions between different plant species and genotypes affect aphid herbivores and their natural enemies are reviewed, and the role of plant diversity and Chemical Interaction for trophic Interactions in crops is discussed.

  • Chemical Interaction between undamaged plants – Effects on herbivores and natural enemies
    Phytochemistry, 2011
    Co-Authors: Robert Glinwood, Velemir Ninkovic, Jan Pettersson
    Abstract:

    Abstract Most research on plant–plant Chemical Interactions has focussed on events following herbivore or pathogen attack. However, undamaged plants also interact Chemically as a natural facet of their behaviour, and this may have consequences for insects that use the plants as hosts. In this review, the links between allelopathy and insect behaviour are outlined. Findings on how Chemical Interactions between different plant species and genotypes affect aphid herbivores and their natural enemies are reviewed, and the role of plant diversity and Chemical Interaction for trophic Interactions in crops is discussed.

  • volatile Chemical Interaction between undamaged plants effects at higher trophic levels
    2010
    Co-Authors: Robert Glinwood
    Abstract:

    This chapter discusses whether plant Chemical communication is a mechanism by which plant genetic diversity can affect the natural enemies of herbivores. Plant genetic diversity influences natural enemies, and these insects use volatile Chemical cues to locate suitable habitats. However, the importance of Chemical communication for these Interactions has not been considered. In this chapter, the latest research on Chemical communication between undamaged plants is reviewed. Evidence for the fact that volatile Chemical communication between weeds and barley, and between different barley genotypes, can influence host plant and habitat selection by aphid natural enemies, polyphagous ladybirds and parasitic wasps, is presented. The results suggest that aphid natural enemies may recognise the effects of plant–plant volatile Interaction and volatile mixing as cues denoting favourable habitats. This represents a new aspect of the ecology of plant communication that may be exploited for sustainable plant protection.

Babasaheb R. Sonawane - One of the best experts on this subject based on the ideXlab platform.

  • Susceptibility Based Upon Chemical Interaction with Disease Processes: Potential Implications for Risk Assessment
    Current Environmental Health Reports, 2014
    Co-Authors: Gary L. Ginsberg, Rodney R. Dietert, Babasaheb R. Sonawane
    Abstract:

    Numerous host and environmental factors may modulate vulnerability and risk. An area of increasing interest is the potential for Chemicals to interact with background aging and disease processes, an Interaction that may yield cumulative damage, altered Chemical potency, and increased disease incidence. We evaluate the Interactions possible between Chemicals and background disease and identify the type of information needed to evaluate such Interactions. Key among these is the existence of a clinically relevant and easy to measure biomarker of disease risk which is also modulated by a particular Chemical of interest. This biomarker may be a physiological, bioChemical, or genetic indicator that corresponds to a phase of the disease process and indicates where an individual is on the continuum between health and disease. The impact of toxic Chemicals on this biomarker can then be used to predict how the Chemical modifies disease risk, with this evidence strengthened by additional toxicology and epidemiology data showing toxicant effect on the disease process. Several case studies are presented which describe the toxic Chemical, the clinical biomarker, the impacted disease and the evidence that the Chemical enhances disease risk: fine particulate matter/decreased heart rate variability/increased cardiopulmonary events; cadmium/decreased glomerular filtration rate/increased chronic kidney disease; methyl mercury/decreased paraoxonase-1/increased cardiovascular risk; trichloroethylene/increased anti-nuclear antibody/autoimmunity; dioxin/increased CYP1A1/hypertension. These case studies point out that consideration of how a Chemical interacts with background aging and disease processes may increase the public health relevance of risk assessment, identify important vulnerabilities, and provide new ways to calculate risk from exposure to environmental toxicants.

Guanhong Feng - One of the best experts on this subject based on the ideXlab platform.

  • on fluid rock Chemical Interaction in co2 based geothermal systems
    Journal of Geochemical Exploration, 2014
    Co-Authors: Tianfu Xu, Guanhong Feng
    Abstract:

    Although fluid–rock Chemical Interactions are common natural phenomena associated with ore-forming systems in the crust of the Earth, they may find applications in the utilization of geothermal energy. For example, carbon dioxide is currently considered as an alternative geothermal working fluid because of some favorable behaviors of fluid dynamics and heat transfer when compared to water. While the thermal and hydraulic aspects of a CO2-based geothermal system look promising, especially for the CO2-plume geothermal (CPG) system, major uncertainties remain with regard to Chemical Interactions between fluids and rocks. We have performed reactive transport modeling to study the impact of fluid–rock Interactions in CO2-geothermal systems. A great deal of specific and detailed information is required to assess the geochemistry and heat extraction of a CO2-based geothermal system. The present study is not intended to represent any particular site. However, some geological and geothermal conditions and parameters were taken from: (1) the central depression of the Songliao Basin, Northeastern China, which has the highest geothermal gradient and heat flow among sedimentary basins in China, and (2) the Cranfield CO2 sequestration site, Mississippi, USA, which will be used for a research on CO2-based geothermal power development. The objectives of this study are to investigate: (1) mineral dissolution and precipitation pattern, (2) associated porosity changes and effects on fluid and heat transfer, (3) impacts on the fluid flow, reservoir growth and longevity, and (4) CO2 loss rates (sequestration), or figuring tradeoffs between power generation and CO2 mineralization (geological storage).