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Tag: researcher

PPG Fiber Glass Researcher Recognized by Peers with Best Paper Award

2015-09-10 07:00:00| Coatings World Breaking News

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Researcher develops new method to identify E. Coli presence within 24 hours

2015-09-04 01:00:00| Food Processing Technology

A Canada-based researcher has developed a method to detect contamination of meat products with Escherichia coli-O157 (E. Coli), a bacterium that causes foodborne illness in humans, in less than 24 hours.

Tags: within hours method presence

Particle Technology Researcher Wins Award

2015-08-28 14:42:00| Chemical Processing

German professor earns recognition from chemical engineering group.

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Antenna Pattern correction methods Researcher EPSSG MWI ICI

2015-08-07 18:07:35| Space-careers.com Jobs RSS

Study on Antenna Pattern correction methods for EPSSG MWI and ICI One of our Space Clients in Germany is looking for a researcher to work on a study exploring the possible methodologies to perform the antenna pattern correction APC to transform the antenna radiance into the radiance of the beam associated to each footprint on ground at microwave MW and submmwave frequencies used by the passive imagers that will be on board of the EPSSG satellites. The submission deadline for applicants is August 31st 2015. Study objectives Antenna pattern correction APC is an important part of the Level 1B L1B processing of microwave imager data. The APC removes unwanted contributions from retrieved antenna radiance data. This assures that remotely sensed information passed to data assimilation systems can be successfully used without further processing. The APC generally performs three steps when retrieving linearly polarized radiance information horizontal andor vertical 1 Removal of crosspolarised contamination. 2 Removal of Horn Spillover. 3 Removal of Main Reflector Emission. 4 Removal of other contributions from the instrument structure. 5 Removal of sidelobe contributions from the external antenna pattern of the instrument. The first step can be generally performed when both polarizations are observed. Spillover contribution, main reflector emission and contributions for the instrument structure depend on details of the instruments design which are still under refinement at this stage. The present study focuses on the fifth step of the APC procedure for the Earth view part of the scan, taking also into account the first step see section 4.2. Microwave radiometers for EPSSG are required to have at least 95 beam efficiency signal in the main lobe, defined as the region within 2.5 times the half power beam width HPBW. The remaining part, coming from far secondary lobes or sidelobes, should therefore be removed from the antenna temperature to retrieve only the main lobe brightness temperature. These secondary lobes are affected by the Earth scene itself, and eventually even by the satellite structure, which may reflect radiation coming from the Earth andor directly contribute to the received signal by thermal emission. The main issue is that, due to orbital movement and Earth scene natural variation, top of the atmosphere TOA radiative contribution of the Earth emitted directly or reflected by the satellite within the sidelobes is highly variable. This study aims to explore effective ways to perform the removal of sidelobe contribution in the Earth view that could be applied in the operational processing to generate Level 1B data from MWI and ICI Level 0 raw instrument data. The main objective of the study is to discuss and test the possible sidelobes correction methods using idealized and realistic antenna patterns, providing an objective assessment and the associated software for the most promising methods. MWI and ICI characteristics applicable to the study The MWI will be a conically scanning instrument, as the SSMI Special Sensor MicrowaveImager and the AMSRE Advanced Microwave Scanning Radiometer for EOS. The ICI will be a conical scanning radiometer observing in the microwave and submm wave range. Study tasks The following tasks are to be performed within this study 1 Antenna pattern definition Input Literature, this SOW, any suitable analysis tool. Output Technical report 1, antenna patterns for MWI and ICI, projection of antenna patterns on ground. 2 Assessment of APC methods Optimum Interpolation OI of nearby observations in the Earth view e.g. RD5, RD6, RD7. RD5 considers also the treatment of crosspolarization contribution. Use of climatological radiance maps as suggested by RD8. Use of NWP fields coupled to a radiative transfer model to compute the Earth scene radiance. This method requires all the necessary boundary conditions surface characterization and atmospheric properties in order to compute the outgoing radiance at the top of the atmosphere TOA. Any other relevant method documented in literature, if applicable. In this respect, a literature search shall be performed as well. Input Literature, this SOW, Output from Task 1, any suitable analysis tool. Output Task 2 Technical Report and documentation of Task 2. 3 Development of the sidelobe correction software Input Output from Task 1 and Task 2. Output 1. Sidelobe correction software package including source code, auxiliary datasetsconfiguration, reference input and output, and documentation user guide, highlevel architecture 2. Full technical report including documentation of Task 3 and executive summary. Deliverable items Updated technical reports implementing comments fromthe client after each task. Monthly progress reports a short report to be submitted by email in the first week of every month. Presentation material from the review meetings and minutes of meetingsteleconferences. Good English skills are essential as all documentation and presentation material shall be written in English.

Tags: methods ici pattern correction

Data Communication Researcher

2015-08-07 18:07:34| Space-careers.com Jobs RSS

Study of data communication within a high performance computing environment One of our Space Clients in Germany is looking for a researcher to work on a study to address communication protocols and architecture supporting very high performance datafile exchanges within a data centre environment. The submission deadline for applicants is September 7th 2015. Study objectives 1. To evaluate by benchmarkingtradeoff the most suitable data transfer solution to be used within the MTG data centre. 2. To propose a data centric model for a ground infrastructure able to support an efficient mechanism for Big Data exchange between two or more locally deployed ground components. The aim of this study is to derive a data transfer solution and a reference architecture which could be reused to support the procurement process of the individual MTG ground segment facilities, to provide alternative and corrective solution for the procured ones and to constitute a guideline for development of the ground segment reference architecture. The tradeoff analysis supporting both objectives shall cover existing technology standards and trends foreseen for the midterm 5 years. The performance benchmarking process in object 1. shall be performed in a representative test bed. The second objective shall lead to the generation of a reference architecture that can be used as a framework to generate various architectures in a coherent way. Tasks 1. Benchmarking performance assessment of reliable file transfer applications which are FTP based as well as alternative protocols or implementations, measuring and testing them in a reference and representative test bed. 2. Defining a theoretical reference architecture that could be used as support for the MTG ground segment facilities procurement and that will provide guideline for future mission development. Part 1 Analysis, Benchmarking and Tradeoff of Solutions Inputs The Statement of Work The Contractors proposal Kickoff Minutes of Meeting Eventual specification inputs for the test bed setup Tasks Perform a technology analysis, including the review of emerging standards, transfer protocols, applications and solutions which can be FTP based or rely on alternative technologies or implementations e.g. iWARP. As an outcome of this analysis, a technology e .g. Ethernet, Infiniband and a range of 3 up to 5 technical solutions will be proposed by and agreed with the client for subsequent benchmarking activity. Tune a standard Linux FTP to obtain the maximum performance and use this as the reference against which the performance of the selected protocols is evaluated. Assess and evaluate the performances of the FTP based applications and alternative solutions and compare them with the tuned FTP reference, measuring and testing them benchmarking in a representative test bed. You will then tradeoff and make a recommendation for the best solution. Outputs Concise weekly reports. Analysis, Benchmarking and Tradeoff Report. Final Presentation. Part 2 DataCentric Reference Architecture Inputs The Statement of Work. The Contractors proposal. Kickoff Minutes of Meeting. Outputs of Part 1. Tasks Design a Reference Architecture. The activity starts from the definition of a datacentric logical model i.e. description of the Distribution Information Infrastructure supporting the location, access, management and delivery of the data leading to a physical solution Connection and Communication solutions adopted. The proposed solution shall include the architectural paradigms adopted e.g. object based storage systems and their implementation e.g. OSD, LUSTRE file systems, etc. Demonstrate the feasibility of the proposed architecture, assessing the different application, computing and infrastructure technology solutions. The assessment shall use as criteria Measures of effectiveness MOEs, to be agreed by the client, that include data circulation performance, scalability, reliability and sustainability. Outputs Concise weekly reports. System Reference Architecture Design Document presenting the logicalphysical architectural design solution and including the justification for the architectural choices based on the MOEs. Final Presentation.

Tags: data communication researcher data communication

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