【博士奖学金】最新PhD招生和奖学金信息（138）

1. Numerical simulation of water repellent soils

Cardiff University |  Cardiff School of Engineering |Cardiff|United Kingdom

Supervisor：Dr P Cleall/Prof A D Jefferson 

Application Deadline：Friday, July 31, 2020

Funded PhD Project (Students Worldwide)

Project Description

This industrially supported project will focus on representing the processes related to, and assessing the impact of, hydrophobicity on soil behaviour via the development of novel models and their solution utilising established numerical techniques. It is planned that use of machine learning and other AI techniques will form part of the study. The models developed will eventually be implemented into the commercial finite element program LUSAS. The student will be based in Cardiff but will have the opportunity to have a number of short-term visits to LUSAS, who will also provide a wide-range of in-house training and support, and will also benefit from additional external supervision from Dr Sérgio D.N. Lourenço (University of Hong Kong)BackgroundMitigation for slope protection from rainfall is usually costly, intrusive and based in heavy engineering solutions and as such there is significant need for more sustainable low cost alternatives. The potential to use hydrophobic soils as part of engineered schemes for slope protection has emerged as a topic of considerable interest to both industry and the research community and is currently being investigated by the supervisors. Pilot studies in model granular materials with water repellent treatment show that the method is effective in reducing infiltration and relatively low cost. Furthermore, experiments supervised by Dr Lourenço and Prof Cleall testing the response of artificially induced water-repellent soils under different scenarios in relation to the environmental conditions and slope design have provided a rich experimental dataset. The intended PhD programme will build on this expanding experimental body of evidence to explore in detail the infiltration and runoff erosion of hydrophobic soils via theoretical and numerical modelling. These soils, the result of either natural processes such as forest fire or synthetic treatment, exhibit distinctly different drying and wetting characteristics to ’normal’ soils and as such require new or modified modelling approaches. The models will be validated and tested by comparison with experimental test data produced by the supervisors’ research groups. The developed models will allow the design of enhanced geotechnical infrastructure.Candidates should hold or expect to gain a first-class degree or a good 2.1 (or their equivalent) in Engineering or a related subject (for example physics or mathematics).Desirable skills include a strong mathematical and numerical ability, the capacity to work independently and an inquisitive and problem solving approach to engineering challenges.Applicants whose first language is not English will be required to demonstrate proficiency in the English language (IELTS 6.5 or equivalent)Applicants should submit an application for postgraduate study via the Cardiff University webpages (http://www.cardiff.ac.uk/study/postgraduate/research/programmes/programme/engineering ) including;• an upload of your CV• a personal statement/covering letter• two references (applicants are recommended to have a third academic referee, if the two academic referees are within the same department/school)• Current academic transcriptsApplicants should select Doctor of Philosophy (Engineering), with a start date of October 2020.In the research proposal section of your application, please specify the project title and supervisors of this project and copy the project description in the text box provided. In the funding section, please select "I will be applying for a scholarship / grant" and specify that you are applying for advertised funding, reference PC-LUS-2020Please contact Professor Peter Cleall, Cleall@Cardiff.ac.uk to informally discuss this opportunity

Funding Notes

Tuition fees at the home/EU rate (£4,407 in 2020/21) and an annual stipend equivalent to current Research Council rates (£15,285 stipend for academic year 2020/21), plus support for travel/conferences/consumables. International students may be eligible for a fee only award.This opportunity is open to Home, EU and international students. Home and European students will be eligible for a full award; international students are eligible for a fee only award.

 

Related Subjects

· AI & Machine Learning
· Civil & Structural Engineering
· Data Analysis
· Environmental Science
· Geophysics
· Materials Science

2. PhD studentship in Hibernating turbulence in boundary-layer flows

Newcastle University | School of Engineering  | Newcastle | United Kingdom

Supervisor：Dr R Whalley

Application Deadline：Friday, July 10, 2020 

Funded PhD Project (Students Worldwide)

Project Description

Number of awards1Start date and durationOctober 2020 for up to 3.5 years.OverviewHibernating turbulence is a unique form of fluid-flow intermittency which causes the skin-friction drag force experienced by an aero- of hydrodynamic body to temporarily reduce by up to 70% [1, 2]. The hibernating turbulence phenomena will be investigated in a series of advanced wind tunnel and water flume experiments using state-of-the-art laser-based fluid-flow diagnostics.The successful candidate will have the opportunity to interact with the project sponsor and project partners at the University of Wisconsin-Madison (USA) and University of Liverpool.The applicant will be trained to a high technological standard and possess skills essential for the growth of the UK economy. In particular, the applicant will develop high technical proficiency inexperimental fluid dynamics including stereoscopic particle image velocimetry, laser Doppler velocimetry, hot-film anemometry, computer programming, and control and instrumentation.Further information can be found at here (https://bit.ly/2AbgtgB). (PDF 611 KB)SponsorThe United States Air Force Office of Scientific ResearchName of supervisor(s)Dr Richard Whalley (https://bit.ly/2GDBIYk), School of Engineering (https://bit.ly/3b18D7p), Newcastle UniversityEligibility CriteriaThe applicant is expected to have a 1st class honours degree in Mechanical Engineering, Chemical Engineering, Civil Engineering, Physics, Mathematics or a related subject, and a strong background in fluid dynamics and mathematics. It would be highly desirable for the applicant to have a sound understanding of turbulent flows, and have relevant experience of collecting and analysing experimental data.This award is available to UK/EU and international candidates. Successful international candidates will be required to make up the difference between the UK/EU fees and international fees.If English is not your first language, you must have IELTS 6.5 overall (with a minimum of 5.5 in all sub-skills).How to applyYou must apply through the University’s online postgraduate application form (https://bit.ly/37GyBLj). You will need to:click on programme of studyinsert 8090F in the programme code section and click searchselect programme name ‘PhD Mechanical Engineering (full time) - Mechanical and Systems Engineeringinsert ENG057 in the studentship/partnership reference fieldattach a covering letter and CV. The covering letter must state the title of the studentship, quote reference code ENG057 and state how your interests and experience relate to the projectattach degree transcripts and certificates and, if English is not your first language, a copy of your English language qualifications.You should also send a copy of your CV and covering letter quoting the relevant reference number, together with a short statement as to why you feel this project will further your own research interests, send direct to Dr Richard Whalley (https://bit.ly/2GDBIYk).ContactDr Richard Whalley (https://bit.ly/2GDBIYk), School of Engineering (https://bit.ly/3b18D7p), Email Richard.Whalley@newcastle.ac.uk, Newcastle University

Funding Notes

100% of UK/EU tuition fees paid and annual living expenses of £15,289 Successful international candidates will be required to make up the difference between the UK/EU fees and international fees.

References

[1] R.D.Whalley et al. (2017) “Low-drag events in transitional wall-bounded turbulence”, Physical Review Fluids, 2, 034602.[2] A. Kushwaha et al. (2017) “Temporal and spatial intermittencies within channel flow turbulence near transition”, Physical Review Fluids, 2, 024603.

 

Related Subjects

· Aeronautical, Maritime and Transport Engineering
· Mechanical Engineering

3. PhD Fellow in Soil Environmental (Bio) Geochemistry (m/f/x)

Helmholtz Centre Potsdam |Postgraduate Opportunities | Potsdam | Germany

Supervisor：Prof L G Benning 

Application Deadline：Monday, June 22, 2020

Funded PhD Project (Students Worldwide)

 

Project Description

The Helmholtz Centre Potsdam – GFZ German Research Centre for Geosciences is the national centre for geosphere research. As a member of the Helmholtz Association we are part of the largest German scientific organization. With around 1,300 employees (including our guests) we develop a sound understanding of the systems and processes of the solid Earth as well as strategies and options for action to face global change and its regional impacts, to understand natural hazards and reduce associated risks, and to assess the influence of humans on the Earth's system.As a partner in Geo.X, the GFZ has access to an excellent network of other geoscience institutions in Potsdam and Berlin. This largest regional concentration of geoscientific competence in Europe offers first-class cooperation and development opportunities.In the Interface Geochemistry section, led by Prof. Liane G. Benning, we want to expand our environmental minerals team and are looking for:

PhD Fellow in Soil Environmental (Bio)Geochemistry (m/f/x)

Reference Number 4200The research will focus on the nucleation and growth of amorphous and crystalline iron- and magnesium-phosphate phases. The main work will be based on laboratory experiments through which the kinetics, mechanisms and pathways that control the formation and transformations of phases in the Fe-Mg-P system in the absence and presence of other elements are investigated. This knowledge will help better understand modern and ancient settings where element speciation and mineral inter-transformations affect global biogeochemical cycles and/or are linked to crucial resource recovery.You will be trained in the use of both conventional and synchrotron-based in situ and time-resolved mineral synthesis and characterization methods and techniques. You will learn how to follow and quantify the formation and transformation of mineral phases and analyse any associated changes in solution/solid chemistry. This will include mass spectrometry and UV-VIS analyses of solutions and solid phase structure and crystallinity characterization through advanced state-of-the-art scattering, diffraction and spectroscopic means using both electron and X-ray methods available in the group (e.g., PISA) or at synchrotron-facilities around the world.The successful candidate (m/f/x) will become an integral part of the Interface Geochemistry section, work closely with other students and postdocs in the group and be registered in the PhD programme of the Freie Universität Berlin.

Your responsibilities:

- perform wet lab synthesis experiments to investigate the nucleation and growth of iron phosphate or magnesium phosphate phases under simulated subsurface conditions in the presence and absence of simple organic compounds or of metals (e.g., [Me] = Co, Cu, etc)- carry out novel, in situ and time-resolved lab experiments and phase characterizations to investigate the kinetics and pathways of these formation and transformation reactions- determine the changes in structure, composition and size of iron phosphate or magnesium phosphate phases during their formation and subsequent transformation- evaluate how organic compounds or metal ion adsorption or incorporation affects the stability of the formed phosphate phases- publish in international peer-reviewed journals and present research results at scientific meetings

Your qualifications:

- MSc degree (or equivalent) in mineralogy, environmental sciences, materials or inorganic chemistry (or related fields)- strong mineralogical or crystal chemistry background- documented experience in the use of some analytical techniques (e.g., XRD, SEM/TEM, IR, UV-Vis, ICP-OES, IC) is an advantage- experience in inorganic chemical or mineral synthesis is an asset- capacity for interdisciplinary and international teamwork and excellent communication skills- proficiency in spoken and written EnglishStarting date: 1st October 2020Fixed term: 3 yearsWorking hours: part-time 75% (currently 29.25 h/week)Salary: This position has been assessed as being salary group 13 according to “TVöD Bund (Tarifgebiet Ost)”. The salary group will be determined by the conditions of the collective wage agreement and the appropriate personal qualifications.Location: Potsdam

What we offer:

- ambitious and varied tasks in a dynamic and international research environment- state-of-the-art equipment- public service benefits- extensive training opportunities- professional career advice offered by our in-house Career-Centre- flexible working hours and conditions- support with finding a good work-life balance offered by benefit@work- institute day-care centre on site- working at the Albert Einstein science park on the Telegrafenberg in Potsdam- good public transport connections by being in walking distance of Potsdam main station

APPLY

Did we pique your interest?If so, we are looking forward to receiving your application by 22nd June 2020. Please use our online application form only.For an evaluation of your application the following information is strictly required:(a) a full CV, (b) a cover letter stating which project you apply for and detailing point by point how you fit the above described qualifications, (c) your university certificates (BSc and if already available your MSc) and (d) the names, emails and full addresses of two referees.In case of any further queries relating to the role’s responsibilities, please contact Prof. Liane G. Benning at +49 331 288-28970. If you have any general questions about the application process, please contact Ms Buge at +49 331 288-28787.Equal opportunity is an inherent part of our personnel policy. Therefore, we explicitly welcome applications from qualified women. Severely disabled candidates with equal qualifications will be given preference according to the SGB IX.

 

Related Subjects

· Environmental Science
· Geochemistry
· Geography
· Geology
· Geophysics
· Inorganic Chemistry