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Space Environment Effects Engineer

2017-08-30 14:10:44| Space-careers.com Jobs RSS

You will have the opportunity to provide engineering support to the Space Environment and Effects Section. The position is based in Noordwijk, the Netherlands. Tasks and Activities The scope of work will include Application of many different models and software packages to analyse the effects that space environments e.g. chargedparticle radiation, plasmas, micrometeoroids space debris, atomic oxygen, geomagnetism may have on ESA missions. Development, adaptation, use and interpretation of the various models and tools and software development of associated graphical and other utilities, including WWW applications. Inorbit measurements of environmental parameters energetic particles, microparticles, plasmas are used to investigate local spacecraft conditions and to develop models of these environments for use in future mission planning. Tasks will contribute to the analysis of some of these data, derive relevant parameters to compare with existing models for validation, and ultimately lead to improvement of the models. Tasks will also involve contributions to the design, development, testing and calibration of the equipment for inorbit measurements. Natural energetic particles in space interact with components, detectors, astronauts, etc. causing a variety of problems. The GEANT4 radiation transport toolkit is used for specific space problems, including dose, SEE, and interactions of solar and galactic particles with detectors, etc. Microparticle environments are analysed with ESABASE2Debris. Spacecraft plasma interactions are analysed with SPIS, as well as heritage tools. Atmospheric environments are studied with the Mars climate databases and circulation models GCM, including the European Martian Climate Database and GCM. Spenvis is used as a generalpurpose resource for space environments and effects analyses. Contribution to development of space weather systems, including system definition and reviews, model development, testing of developed methods and establishment services. Contributions are also expected to the definition of required space weather hardware e.g. instrumentation and software developments, and subsequently assisting in the monitoring of industrial contracts. Contributions to the preparation of ECSS engineering standards shall be made ECSSE1004, ECSSE1012, ECSSE20, etc.. Support the section with maintenance of computational infrastructure for providing space environments and effects analysis support including web site upgrade and updating, software testing, software implementation and maintenance. Reviews of contractor documents in this domain and in areas where environmental effects may have an impact shall be undertaken. Support the activities of technology research and development contracts regarding the above areas, including direct interfaces with the contractors, participate in progress meetings and reviews, as requested, and provide appropriate feedback on the progress and discussions. When supporting projects, interfacing may include communication with the project contractor companies or partner organizations, participation in progress meetings and reviews, as requested by project work, and provision of appropriate feedback on the achieved progress and discussions. As part of the tasks, authoritative, highquality reporting on analyses shall be undertaken. Presentations to project staff shall be undertaken. Good quality control of analyses is essential. Development work shall be fully documented. In some cases contributions to scientific and technical papers will be made. Skills and Experience The following skills and experience are mandatory You have a PhD or Msc Engineering from a recognised Institution of secondary studies University, Ecole suprieure, etc. or equivalent. You have a good knowledge of the space environments space radiation, plasmas, atmospheres, dust, micrometeoroids, debris, etc. and resulting effects radiation damage, single event effects, electrostatic charging, structural damage, etc., and the associated modeling and instrumentation techniques. You have a proven experience with modern programming languages and IT environments. You are fluent in English. You have a very good verbal and written communication skills. How to Apply Looking to take your career to the next level? Interested applicants should submit their CV and Cover Letter to RHEAs Recruitment team at careersrheagroup.com no later than 20092017. Preference will be given to candidates eligible for an EU or national personal security clearance at the level of SECRET or above. About RHEA Group RHEA Group is a leading engineering consultancy firm with demonstrated expertise in space, system and secure software solutions. We attract skilled engineers, scientists and management professionals and offer a range of exciting career paths working alongside clients such as the European Space Agency, the European GNSS Agency, EUMETSAT and NATO.

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Effects of Particle Zeta Potential, Shape, and Size on Suspension Rheology

2017-08-17 17:18:00| Food Processing Technology

From foods to ceramics, paints, and adhesives, many products are dispersions or suspensions of particles in a liquid medium.

Tags: size potential effects shape

Radiation Effects Engineer

2017-08-17 11:10:07| Space-careers.com Jobs RSS

Vacancy in the Directorate of Technology, Engineering and Quality. ESA is an equal opportunity employer, committed to achieving diversity within the workforce and creating an inclusive working environment. Applications from women are encouraged. Post Radiation Effects Engineer, TECQEC 00002245 This positionis classified A2A4 on the Coordinated Organisations salary scale. This position forms part of ESAs Advance Recruitment Scheme which is established to provide appropriate staffing resources when requirements materialise. Appointments are therefore made for an initial duration of two years upon which the selected candidate may be appointed to a permanent post in the Agency. Location ESTEC, Noordwijk, The Netherlands Description Radiation Effects Engineer in the Radiation Hardness Assurance and Component Analysis Section, Components and Materials Physics and Chemistry Evaluation and Standardisation Division, Product Assurance and Safety Department, Directorate of Technology, Engineering and Quality. The Radiation Hardness Assurance and Component Analysis Section provides functional support to ESA projects and carries out technological research RD in areas including EEE component radiation hardness assurance, radiation evaluation, radiation qualification, radiation hardening, radiation mitigation techniques, dosimetry, radiation test facilities, inflight RHA and component radiation characterisation experiments. Duties Reporting to the Head of Section and within the technical fields described above, the main tasks and responsibilities of the post holder will include providing expert technical support and consultancy to ESA projects, programmes and general studies in the area of EEE component RHA throughout all project phases participating in project reviews and evaluations of procurement proposals, identifying critical development problems and assisting with their resolution contributing to the definition of technology development requirements and work plans for ESA technology programmes defining, initiating and managing RD activities covering long and shortterm needs fostering new application areas for multidisciplinary activities, placing emphasis on innovative concepts, cuttingedge technologies and system architectures preparing and conducting radiation tests including test setup development hardware and software and subsequent data analysis with emphasis on total ionising dose, displacement damage and single event effects of EEE components, test structures and materials in support of Agency projects, studies, evaluation, qualification or RH activities supporting the Sections standardisation activities, particularly those involving general RHA procedures, irradiation test guidelines SEE, TID and displacement damage, modelling and simulation issues conducting simulations of radiation effects in components and materials using suitable device physicsbased SW tools to produce new or improve existing models monitoring applicable scientific and technological trends and maintaining stateoftheart expertise contributing to the dissemination of the results of the activities performed and the transfer of knowledge across the Agency. Technical competencies Understanding of radiation hardness assurance processes Radiation test experience SEE, TID, DD Radiation test planning and preparation HWSW Overall semiconductor technology knowledge Radiation effects knowledge Familiarity with radiation hardness assurance standards Understanding of ESA space project review processes Behavioural competencies Communication Teamwork Planning organisation Problem solving Continuous learning Innovation creativity Education Applicants for this post should have a Masters degree or equivalent qualification in electricalelectronic engineering or solid state physics. Additional requirements Experience of radiation effects on semiconductor components and aspects of irradiation testing will be considered an asset. Knowledge of EEE component RHA processes for space applications is required, as is familiarity with SEE rate prediction tools and their use in the space environment. Knowledge familiarity with the ECSS and ESCC standards is considered advantageous. Applicants should be familiar with one or more of the following shielding analysis tools sectoring and 3D MonteCarlobased device physics simulation tools modern programming techniques modelling and simulation of radiation effects on EEE components for radiation hardening software engineering practices. Basic familiarity with component engineering and product assurance principles and modellingsimulation of radiation effects on EEE components for RH will be an asset. Other Information For behavioural competencies expected from ESA staff in general, please refer to the ESA Competency Framework. The working languages of the Agency are English and French. A good knowledge of one of these is required. Knowledge of another Member State language would be an asset. The Agency may require applicants to undergo selection tests. The closing date for applications is 07 September 2017. If you require support with your application due to a disability, please email contact.human.resourcesesa.int. Please note that applications are only considered from nationals of one of the following States Austria, Belgium, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Luxembourg, the Netherlands, Norway, Poland, Portugal, Romania, Slovenia, Spain, Sweden, Switzerland, the United Kingdom, Canada and Slovenia. Priority will first be given to internal candidates and secondly to external candidates from underrepresented Member States. In accordance with the European Space Agencys security procedures and as part of the selection process, successful candidates will be required to undergo basic screening before appointment. Recruitment will normally be at the first grade in the band A2 however, if the candidate selected has little or no experience, the position may be filled at A1 level.

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Damming and its effects on fish

2017-08-09 06:00:00| LifeSciencesWorld

[NEWS] IMAGE: Adult alewife that was transported above impassable barriers and released into Potanipo Lake, NH. Adult alewife spawn in freshwater lakes before returning to the ocean. Credit: Steven Mattocks Fish that migrate between freshwater and sea ecosystems play…

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