The post-doc will be involved in the micromechanical modeling at the polycrystal scale. The aim is to integrate into the polycrystal model slip-system resistances inferred from experimental data, ab initio calculations, and Dislocation Dynamics (DDD). The used polycrystal model will be based on mean-field homogenization methods (self-consistent scheme associated with the “Second-Order” linearization procedure of Ponte Castañeda), although numerical computations from full-field methods could be also performed if necessary. Micromechanical modeling of such material is a challenging task since all mineral phases comprising the upper mantle exhibit an extreme viscoplastic anisotropy at the grain scale, with three or less known independent slip systems. There are many effects to be investigated, important for
both geophysical and material sciences issues, e.g.: strain partition and texture development in multiphase minerals, the rheology of partially melted polycrystals, the introduction of diffusion based mechanisms (such as dislocation climb), etc.
Fellowship Application Deadline: January 2011
Further Fellowship Information and Application
Postdoctoral for project MANTLE RHEOLOGY, France: Micromechanical modeling
Climate Science Research Partnership for Resident Nationals of an African Country
The Call for Applications is extended to climate researchers and applied climate scientists/practitioners working in the field of African climate variability and change. Applicants must be resident nationals of an African country.
Three types of Fellowships are available:
* Postgraduate Research Fellowships (maximum 12 months duration)
* Post-Doctoral Research Fellowships (maximum 12 months duration)
* Applications Project Fellowships (maximum 6 months duration)
Through the CSRP Fellowships, successful applicants will have the opportunity to use CSRP research outputs (e.g. output from Hadley Centre climate and seasonal prediction models) to further their own research or applications project, interact with MOHC scientists and contribute to the overall CSRP research objectives.
Successful applicants will be funded to make an induction visit to the Met Office Hadley Centre, of up to 4 weeks duration, to learn about the CSRP objectives, retrieve data for the research/project and to help consolidation of their research/project plans.
Scholarship Application Deadline: 04 February 2011
Postdoctoral in Antenna Systems: New Waveguide Technology for Radio Links, Sweden
The postdoc position has one year duration and is financed by a project within the Chase research center. Depending on the results of the first year’s study and the industrial interest, the Board of Chase may decide to extend both the size and duration of the project. The research will be to investigate the use of gap waveguides in radio links above 30 GHz, in collaboration with local industry and the antenna group.
The employed person will work part of the time in an industrial environment, where he/she will learn about specifications and present state of the art in radio link RF technology. This knowledge will then be used to investigate if any of the RF components such as antennas, filters, couplers and orthomode transducers can be realized more cost-effectively in gap waveguides, and even if the packaging of the whole RF front end can be done in gap waveguide technology. The gap waveguide is new, so it is expected that the project will result in scientific publications, possibly co-authored with the PhD students and researchers in the group. The agreement between Chase and the partner companies stimulates to such publications. Therefore, the position is well suited to build up merits for higher positions in research.
Required qualifications
Recent PhD in related areas such as design of antennas and components in waveguides.
– Main author of several scientific publications in journals and at conferences. Experience with EM software such as CST Microwave Studio, HFSS and similar.
– Experience with research on metamaterials such as soft and hard surfaces and similar.
– Experience with practical design and measurements of antennas and waveguide components.
Fellowship Application Deadline: 2011-01-15
Further Fellowship information and Application
