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Carbon Fibers

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ISBN: 9783906980690 9783906980706 Year: Pages: 192 DOI: 10.3390/books978-3-906980-70-6 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Added to DOAB on : 2015-10-22 06:30:12
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Remarkably, truly novel structures are still being found for materials made of a single element: carbon. Perhaps there is a ‘revolution’ in carbon-only materials. Indeed, recently, two Nobel prizes were awarded for new forms of carbon: for fullerenes in 1996, and for graphene in 2010. And the magic and beauty of carbon nanotubes has held the attention of the scientific world for more than a decade. Yet, there is still more to discover and to explain. In this Special Issue, the focus is on just one area of carbon research: fibers. Even given this relatively narrow focus there is a diversity of research that is both compelling and frustrating. Compelling as it demonstrates the vitality of the subject, and frustrating as it makes it difficult to organize. The topics covered include new fiber fabrication protocols, the mechanical behavior of fiber reinforced polymers, new techniques to study the microstructure of fiber containing composites, new uses of fiber structures, the use of carbon fibers as catalyst supports, and studies regarding the difficulties of machining fiber structures for inclusion in complex structures.

Magnetic Resonance Sensors

ISBN: 9783906980980 9783906980997 Year: Pages: 224 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Added to DOAB on : 2015-10-22 09:04:48
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Magnetic Resonance finds applications, from spectroscopy to imaging, on a routine basis in the majority of research and medical institutions. It is also becoming more frequently used for specific applications in which the whole instrument and system is designed for optimum operation. Magnetic Resonance sensors have been applied to fields as varied as petro-chemistry - with borehole logging, food engineering - with online process monitoring, emergency medicine - with point of care diagnostics and civil engineering - with sensors for monitoring cement drying. This great diversity is seeing exciting developments in magnetic resonance sensing technology published in application specific journals where they are often not seen by the wider sensor community.

Phytoalexins: Current Progress and Future Prospects

ISBN: 9783038420583 9783038420590 Year: Pages: 516 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Added to DOAB on : 2016-05-12 11:33:35
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Phytoalexins are antimicrobial substances of low molecular weight produced by plants in response to infection or stress, which form part of their active defense mechanisms. It is now clear that phytoalexins exhibit toxicity across much of the biological spectrum, prokaryotic and eukaryotic. Starting in the 1950s, research on phytoalexins has begun with biochemistry and bio-organic chemistry, resulting in the determination of their structure, their biological activity as well as mechanisms of their synthesis and their catabolism by microorganisms. Elucidation of the biosynthesis of numerous phytoalexins has also permitted the use of molecular biology tools for the exploration of the genes encoding enzymes of their synthesis pathways and their regulators. This has led to potential applications for increasing plant resistance to diseases. Phytoalexins display an enormous diversity belonging to various chemical families such as isoflavones, isoflavanones, pterocarpans, isoflavans, flavanones, coumestans, furanoacetylenes, phenylpropanoids, steroid glycoalkaloids, norsesquiterpenoids/sesquiterpenoids, coumarins, diterpenes, ent-kaurane-related diterpenoids, acidic sesquiterpenoids, 3-deoxyanthocyanidins, naphthaldehydes, indoles and stilbenes.Research papers dealing with all aspects of phytoalexins, including structure elucidation; chemical synthesis; methods for phytoalexin analysis in plant extracts or biological fluids; biosynthesis studies including modulation of phytoalexin synthesis; engineering of phytoalexin biochemical pathways in plants and microbes; biological activities; structure/activity relationships; phytoalexin metabolism in planta and by micro-organisms; roles and ATP Binding Cassette (ABC) transporters or Multi-Drugs Efflux (MDE) transporters are welcome for inclusion in this Special Issue of Molecules. Review articles, particularly those dealing with the themes mentioned above are also particularly welcome for inclusion.

Detection and Tracking of Targets in Forward-Looking InfraRed (FLIR) Imagery

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ISBN: 9783038420521 9783038420538 Year: Pages: XIV, 228 DOI: 10.3390/books978-3-03842-053-8 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Added to DOAB on : 2015-10-22 07:34:37
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Detection and tracking of targets in forward looking infrared (FLIR) imagery are challenging tasks. IR sensors often provide low signal-to-noise ratio and heavy background cluttering images. Non-stationary cameras can introduce further challenges, because detection and tracking might make it necessary to properly deal with sensor ego-motion through suitable estimation and compensation techniques. Moreover, further issues are posed by imagery with multiple and possibly moving target and non-target objects, which can blend into the background, change their signature, size, shape, and even overlap during their motion. Finally, specific applications could introduce cumbersome real-time constraints, thus requiring tracking techniques with a reduced computational footprint.The objective of this Special Issue is to invite high state-of-the-art research contributions, tutorials, and position papers that address the broad challenges faced in analysis and processing of FLIR imagery. Original papers describing completed and unpublished work that are not currently under review by any other journal/magazine/conference/special issue are solicited.

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2015 (4)