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Internal Research Fellow PostDoc

2018-07-12 18:26:57| Space-careers.com Jobs RSS

Research Fellowship Opportunity 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 Internal Research Fellow PostDoc in Radio Frequency RF plasma discharge modelling and coupling optimisation for atomic clocks This post is classified F2. Location ESTEC, Noordwijk, The Netherlands Our team and mission This position is located in the RF Equipment and Technology Section of the RF Payloads Technology Division and is focused on the RF plasma discharge modelling, characterization and validation for its application in ultrastable time references such as atomic clocks. The RF Payloads Technology Division is responsible for RF payloads, instruments and technologies for space and ground applications, including all equipment having a RF spaceground interface and its associated laboratories. The Division supports the definition, specification and developmentprocurement of laboratories either for ESA projects and technology programmes or external customers. Within the Division, the RF Equipment and Technology Section provides functional support to ESA projects and carries out technological research RD in the fields of RF equipment and building blocks, active and passive components, technologies and related design and characterisation tools. Fields of activitiesresearch Controlled RF plasma discharges are used in atomic clocks for atom flux creation by means of molecular dissociation or as a spectral optical source for population inversion in double resonance schemes. At the same time, atomic clocks are increasingly becoming a key technology for space applications, where onboard ultrastable time references are required. This is the case for future scientific missions, such as ACES, which will provide an inorbit time reference and also, on a much larger scale, for the GNSS constellations for which multiple atomic clocks are embarked on each satellite. A detailed understanding of RF plasma discharge evolution over clock lifetime and its optimization to improve the signal to noise and then the performance of the atomic clocks are therefore important research fields. The tasks assigned to the selected candidate will include RF plasma discharge modelling and validation, discharge optimization, analysis and prevention of wearout effects and validation of the identified solution by experimental tests in the ESTEC laboratories. The outcomes of this work will be fed into future developments. Technical competencies Ability to conduct research autonomously Breadth of exposure coming from past andor current researchactivities Researchpublication record Knowledge relevant to the field of research Interest in space and space research Ability to gather and share relevant information Behavioural competencies Innovation Creativity Continuous Learning Relationship Management Self Motivation Communication Problem Solving CrossCultural Sensitivity Education Applicants should have recently completed, or be close to completion of a PhD in a related technical or scientific discipline, preferably in plasma physics. Preference will be given to applications submitted by candidates within five years of receiving their PhD. Additional requirements The Research Fellow must be able to work in a team with other international investigators in a spirit of positive cooperation and, at the same time, be capable of working autonomously in hisher area of research. Previous experience in experimental research within a laboratory environment as well as competence in optical spectroscopy would be assets. Good knowledge of RFelectromagnetic modeling and multiphysics environment simulation is desirable. At the end of the fellowship, the Research Fellow will be required to summarise the work completed so that it can be included in papers to be submitted to relevant specialised conferencesjournals. 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. Other information For behavioural competencies expected from ESA staff in general, please refer to the ESA Competency Framework. The Agency may require applicants to undergo selection tests. The closing date for applications is 23 August 2018. In addition to your CV and your motivation letter, please add your proposal of no more than 5 pages outlining your proposed research in the additional documents field of the application information section. Candidates are asked to arrange for 3 reference letters, to be sent by the referees themselves, before the closing date to temp.htresa.int. Please ensure your name is mentioned in the subject of the email. 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, Spain, Sweden, Switzerland, the United Kingdom and Canada and Slovenia as well as Bulgaria, Cyprus, Latvia, Lithuania, Slovakia as European Cooperating States ECS. Priority will first be given to 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 Apply HERE

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Post-Tropical Cyclone Chris Public Advisory Number 24

2018-07-12 17:09:49| National Hurricane Center (Atlantic)

Issued at 1100 AM AST Thu Jul 12 2018 922 WTNT33 KNHC 121509 CCA TCPAT3 BULLETIN Post-Tropical Cyclone Chris Advisory Number 24...Corrected NWS National Hurricane Center Miami FL AL032018 1100 AM AST Thu Jul 12 2018 Corrected Discussion and Outlook Section ...POST-TROPICAL CYCLONE CHRIS RACING TOWARD CAPE RACE AND THE AVALON PENINSULA OF NEWFOUNDLAND... ...THIS IS THE LAST ADVISORY... SUMMARY OF 1100 AM AST...1500 UTC...INFORMATION ----------------------------------------------- LOCATION...44.4N 57.7W ABOUT 290 MI...470 KM E OF HALIFAX NOVA SCOTIA ABOUT 275 MI...440 KM SW OF CAPE RACE NEWFOUNDLAND MAXIMUM SUSTAINED WINDS...70 MPH...110 KM/H PRESENT MOVEMENT...NE OR 45 DEGREES AT 36 MPH...57 KM/H MINIMUM CENTRAL PRESSURE...987 MB...29.15 INCHES WATCHES AND WARNINGS -------------------- There are no tropical cyclone coastal watches or warnings in effect. Interests in Atlantic Canada should monitor the progress of Chris. DISCUSSION AND OUTLOOK ---------------------- At 1100 AM AST (1500 UTC), the center of Post-Tropical Cyclone Chris was located near latitude 44.4 North, longitude 57.7 West. The post-tropical cyclone is moving toward the northeast near 36 mph (57 km/h) and this motion is expected to continue through Friday. On the forecast track, Chris is expected to pass over or near the Avalon Peninsula of southeastern Newfoundland late afternoon and early evening today. Maximum sustained winds are near 70 mph (110 km/h) with higher gusts. Slight weakening is forecast during the next 48 hours. Tropical-storm-force winds extend outward up to 205 miles (335 km) from the center. A Canadian buoy just east of the center recently reported a sustained wind of 58 mph (94 km/h) and gust to 71 mph (115 km/h). The estimated minimum central pressure is 987 mb (29.15 inches). HAZARDS AFFECTING LAND ---------------------- SURF: Even though Chris is moving away from the United States, swells generated by the storm will affect portions of the coast from North Carolina northward to New England during the next couple of days. Swells will spread northward along the southern coasts of Nova Scotia and Newfoundland overnight and into Thursday. These swells could cause life-threatening surf and rip current conditions. Please consult products from your local weather office. RAINFALL: Chris is expected to produce total rain accumulations of 1 to 3 inches (25 to 75 millimeters) over Newfoundland, with possible isolated maximum amounts of 6 inches (150 millimeters). These rains may cause flash flooding. Sable Island has received more than 2.3 inches (60 millimeters) of rainfall during the past few hours. NEXT ADVISORY ------------- This is the last public advisory issued by the National Hurricane Center on this system. Additional information on this system can be found in High Seas Forecasts issued by the National Weather Service, under AWIPS header NFDHSFAT1, WMO header FZNT01 KWBC, and available on the Web at https://ocean.weather.gov/shtml/NFDHSFAT1.shtml. Other information on Post-Tropical Cyclone Chris can be found in products issued by Environment Canada/Canadian Hurricane Centre on the internet at weather.gc.ca/hurricane/. $$ Forecaster Stewart

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Summary for Post-Tropical Cyclone Chris (AT3/AL032018)

2018-07-12 17:09:49| National Hurricane Center (Atlantic)

...POST-TROPICAL CYCLONE CHRIS RACING TOWARD CAPE RACE AND THE AVALON PENINSULA OF NEWFOUNDLAND... ...THIS IS THE LAST ADVISORY... As of 11:00 AM AST Thu Jul 12 the center of Chris was located near 44.4, -57.7 with movement NE at 36 mph. The minimum central pressure was 987 mb with maximum sustained winds of about 70 mph.

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Category: Transportation and Logistics

 

 

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