university of cambridge | Scholarship for Nigerians and Africans - Part 3

PhD Studentship in the Department of Haematology at University of Cambridge, UK

Functional characterization of novel regulators of haematopoiesis and platelet function in Danio rerio A PhD position is available jointly supervised by Dr Ana Cvejic and Professor Willem H Ouwehand who have an international track record in megakaryocyte and platelet biology and genomics. Genome-wide association studies (GWAS) provide a new and powerful approach to identify novel regulators of haematopoiesis and platelet function. In a next step we want to explore the mechanisms by which common sequence variation exerts its effect on haematopoiesis. This PhD project will initially apply high-throughput screening methods in Danio rerio to determine the function of novel genes, identified by GWAS, in haematopoiesis. Further studies will focus on novel genes encoding proteins that are important regulators of transcription. The successful applicant will be trained in performing experiments with Danio rerio applying a variety of molecular biology and next generation sequencing techniques, state-of-the-art imaging systems, in situ hybridisation and immunohistochemistry and will mainly work in the Zebrafish genetics group of Dr Derek Stemple at the Wellcome Trust Sanger Institute.
We are seeking applications from ambitious and highly motivated individuals looking to work in an interdisciplinary environment with education, experience or interest in haematopoiesis. Applicants should have a first or upper second-class degree in biology, biochemistry or related subjects. Familiarity with molecular biology techniques would be advantageous. This 4-year studentship will cover University composition fees, College fees and a £16,500 stipend for UK/EEA applicants.

Scholarship Application Deadline: 15 April 2011

Further Scholarship Information and Application

2 International PhD Studentships in Aeroacoustics, University of Cambridge, UK

The studentships are to investigate air movement for high efficiency and low noise in the power range used for domestic applications. The projects involve a study of unsteady fluid mechanics, flow instability and acoustics and each have an experimental and a model component. This is a unique opportunity to address a real design challenge with a leading company through original research, which will have wider impacts on the acoustic emissions of many other sub 1kW air moving machines.

The studentships are to commence in October 2011.

Project 1: Towards a Silent Fan

The Dyson Air Multiplier’s striking design offers many advantages in operation: the airflow it generates is free of the turbulence associated with conventional fans; it is efficient, easy to clean and as quiet as other fans. The aim of this project is to take the design even further and create the ultimate low-noise fan while staying within a strict design envelope. The cooling airflow involves no moving blades and is at a low enough speed that the noise from this flow is not significant. This means that the focus of the project will be on novel, quiet internal flow components. Components of interest will be: the impeller blades that produce tonal noise, which is enhanced by interactions with the inlet and outlet geometry; and sections of the flow path with abrupt curvature that can cause local separations, wakes and noise. In this project we will develop simplified models to predict noise generated from the individual components (impeller, guide vanes, air jet, etc) and their interaction and integrate these ideas to develop design rules for reducing noise. The project aims to determine the lowest noise level that can be achieved for a fan with given air flow-rate, air speed and efficiency, and to develop design concepts that can achieve it.

Project 2: Aeroacoustics of Cyclone Separators

Cyclones are complex three-dimensional flows that swirl about a central column of fluid inline with the axis of rotation. The column consists of a solid-body rotation that at low flow speeds do not show large instabilities. However as the flow speed increases, the vortex core deforms into a rotating spiral and begins to precess around the central axis. The instability leads to a temporally periodic motion that results in a tonal noise. It is suspected that the frequency of the processing vortex core has a relationship with the frequency of the observed sound.

The main objectives of the project are to develop a model for the precessing vortex core and to discover ways of controlling noise either by suppressing the periodic flow instability passively, actively or by applying anti-sound control¬.

The challenge is to stabilise the flow or reduce the noise without introducing a loss in performance either in the form of pressure drop or particle separation.

The solution could have a wide range of applicability from vacuum cleaners to helicopter intakes and Ranque-Hilsch vortex tubes used for refrigeration.

Eligibility

The application is open to nationals of any country, but full tuition fees are not covered for overseas (non-EU) students. Stipends for 2010-2011 are 13,290 GBP, and available for 3 years. Candidates should hold an undergraduate degree in aerospace, mechanical or acoustical engineering, physics or related fields.

Scholarship Application Deadline:
6 May 2011

Further Scholarship Information and Application

PhD Studentship in Colloid and Interface Science, University of Cambridge, UK

Two PhD studentships are available from October 2011 to work on projects in the research group led by Dr Stuart Clarke. The projects will investigate the adsorption and mixing behaviour of molecules at the solid / solution interface using a number of novel techniques including X-ray and neutron scattering, and calorimetry. The project may make use of international facilities worldwide as well as in Cambridge.
Applicants should have, or be about to receive, at least the equivalent of a UK II.1 honours degree in chemistry, chemical engineering, physics or a related discipline. The studentship covers tuition fees plus a maintenance grant for UK and other EU nationals who are eligible for the Home/EU fees rate. Non-EU nationals may apply if they have funding in place to cover the fees differential for overseas students.

Scholarship Application Deadline: 31 March 2011

Further Scholarship Information and Application