Search results: Found 17

Listing 1 - 10 of 17 << page
of 2
>>
Sort by
Morphological Plant Modeling: Unleashing Geometric and Topological Potential within the Plant Sciences

Authors: ---
Book Series: Frontiers Research Topics ISSN: 16648714 ISBN: 9782889452972 Year: Pages: 296 DOI: 10.3389/978-2-88945-297-2 Language: English
Publisher: Frontiers Media SA
Subject: Science (General) --- Botany
Added to DOAB on : 2018-02-27 16:16:44
License:

Loading...
Export citation

Choose an application

Abstract

An increasing population faces the growing demand for agricultural products and accurate global climate models that account for individual plant morphologies to predict favorable human habitat. Both demands are rooted in an improved understanding of the mechanistic origins of plant development. Such understanding requires geometric and topological descriptors to characterize the phenotype of plants and its link to genotypes. However, the current plant phenotyping framework relies on simple length and diameter measurements, which fail to capture the exquisite architecture of plants. The Research Topic “Morphological Plant Modeling: Unleashing Geometric and Topological Potential within the Plant Sciences” is the result of a workshop held at National Institute for Mathematical and Biological Synthesis (NIMBioS) in Knoxville, Tennessee. From 2.-4. September 2015 over 40 scientists from mathematics, computer science, engineering, physics and biology came together to set new frontiers in combining plant phenotyping with recent results from shape theory at the interface of geometry and topology. In doing so, the Research Topic synthesizes the views from multiple disciplines to reveal the potential of new mathematical concepts to analyze and quantify the relationship between morphological plant features. As such, the Research Topic bundles examples of new mathematical techniques including persistent homology, graph-theory, and shape statistics to tackle questions in crop breeding, developmental biology, and vegetation modeling. The challenge to model plant morphology under field conditions is a central theme of the included papers to address the problems of climate change and food security, that require the integration of plant biology and mathematics from geometry and topology research applied to imaging and simulation techniques. The introductory white paper written by the workshop participants identifies future directions in research, education and policy making to integrate biological and mathematical approaches and to strengthen research at the interface of both disciplines.

Manifolds - Current Research Areas

Author:
ISBN: 9789535128717 9789535128724 9789535141228 Year: Pages: 160 DOI: 10.5772/63138 Language: English
Publisher: IntechOpen
Subject: Mathematics
Added to DOAB on : 2019-10-03 07:51:49

Loading...
Export citation

Choose an application

Abstract

Differential geometry is a very active field of research and has many applications to areas such as physics and gravity, for example. The papers in this book cover a number of subjects which will be of interest to workers in these areas. It is hoped that the papers here will be able to provide a useful resource for researchers with regard to current fields of research in this important area.

Manifolds II - Theory and Applications

Author:
ISBN: 9781838803094 9781838803100 9781838807160 Year: Pages: 146 DOI: 10.5772/intechopen.75217 Language: English
Publisher: IntechOpen
Subject: Mathematics
Added to DOAB on : 2019-10-03 07:51:53

Loading...
Export citation

Choose an application

Abstract

Differential geometry is a very active field of research and has many applications to areas such as physics, in particular gravity. The chapters in this book cover a number of subjects that will be of interest to workers in these areas. It is hoped that these chapters will be able to provide a useful resource for researchers with regard to current fields of research in this important area.

Geometry and topology of wild translation surfaces

Author:
ISBN: 9783731504566 Year: Pages: 151 p. DOI: 10.5445/KSP/1000050964 Language: ENGLISH
Publisher: KIT Scientific Publishing
Subject: Mathematics
Added to DOAB on : 2019-07-30 20:02:02
License:

Loading...
Export citation

Choose an application

Abstract

A translation surface is a two-dimensional manifold, equipped with a translation structure. It can be obtained by considering Euclidean polygons and identifying their edges via translations. The vertices of the polygons form singularities if the translation structure can not be extended to them. We study translation surfaces with wild singularities, regarding the topology (genus and space of ends), the geometry (behavior of the singularities), and how the topology and the geometry are related.

Differential Geometrical Theory of Statistics

Authors: ---
ISBN: 9783038424253 9783038424246 Year: Pages: XIV, 458 DOI: 10.3390/books978-3-03842-425-3 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Physics (General)
Added to DOAB on : 2017-06-12 12:20:37
License:

Loading...
Export citation

Choose an application

Abstract

This Special Issue "Differential Geometrical Theory of Statistics" collates selected invited and contributed talks presented during the conference GSI'15 on "Geometric Science of Information" which was held at the Ecole Polytechnique, Paris-Saclay Campus, France, in October 2015 (Conference web site: http://www.see.asso.fr/gsi2015).

New Trends in Fuzzy Set Theory and Related Items

Authors: --- ---
ISBN: 9783038971238 9783038971245 Year: Pages: 184 DOI: 10.3390/books978-3-03897-124-5 Language: englisch
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Physics (General) --- Mathematics
Added to DOAB on : 2018-09-04 12:29:08
License:

Loading...
Export citation

Choose an application

Abstract

Since the launch, in 1965, of the key notion of a fuzzy subset by Lotfi A. Zadeh, this concept has succeeded in growing interest and development. Nowadays, it is undoubtedly one of the most powerful and appealing branches of mathematics. Its range of applications is wide and multidisciplinary, starting from computer sciences and artificial intelligence, but also touching on a vast set of scientific disciplines (physics, engineering, medicine, economics, social choice, etc.).The present Special Issue is devoted to introducing new trends on this theory, from an interdisciplinary point of view, and looking for a wide coverage of topics related to fuzzy set and systems.

Mobile laser scanning based determination of railway network topology and branching direction on turnouts

Author:
Book Series: Schriftenreihe / Institut für Mess- und Regelungstechnik, Karlsruher Institut für Technologie ISSN: 16134214 ISBN: 9783731507437 Year: Volume: 038 Pages: XII, 137 p. DOI: 10.5445/KSP/1000077900 Language: ENGLISH
Publisher: KIT Scientific Publishing
Subject: Technology (General)
Added to DOAB on : 2019-07-28 18:37:01
License:

Loading...
Export citation

Choose an application

Abstract

GNSS is often inaccurate and satellite signals are not always available, which results in ambiguous situations. In order to reduce their negative effects on train-borne localization, this work proposes an approach for the detection of tracks, turnouts, and branching directions solely from 2d lidar sensor measurements. The experimental evaluation shows highly correct and complete results. In summary, these detections are sufficient to reduce ambiguity problems in train-borne localization.

Topological Groups. Advances, Surveys, and Open Questions

Author:
ISBN: 9783038976448 Year: Pages: 160 DOI: 10.3390/books978-3-03897-645-5 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Science (General) --- Mathematics
Added to DOAB on : 2019-03-08 11:42:05
License:

Loading...
Export citation

Choose an application

Abstract

Following the tremendous reception of our first volume on topological groups called ""Topological Groups: Yesterday, Today, and Tomorrow"", we now present our second volume. Like the first volume, this collection contains articles by some of the best scholars in the world on topological groups. A feature of the first volume was surveys, and we continue that tradition in this volume with three new surveys. These surveys are of interest not only to the expert but also to those who are less experienced. Particularly exciting to active researchers, especially young researchers, is the inclusion of over three dozen open questions. This volume consists of 11 papers containing many new and interesting results and examples across the spectrum of topological group theory and related topics. Well-known researchers who contributed to this volume include Taras Banakh, Michael Megrelishvili, Sidney A. Morris, Saharon Shelah, George A. Willis, O'lga V. Sipacheva, and Stephen Wagner.

Siloxane-Based Polymers

Author:
ISBN: 9783038971252 / 9783038971269 Year: Pages: 188 DOI: 10.3390/books978-3-03897-126-9 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Technology (General) --- Chemical Engineering
Added to DOAB on : 2019-08-28 11:21:27
License:

Loading...
Export citation

Choose an application

Abstract

This book, a collection of 12 original contributions and 4 reviews, provides a selection of the most recent advances in the preparation, characterization, and applications of polymeric nanocomposites comprising nanoparticles. The concept of nanoparticle-reinforced polymers came about three decades ago, following the outstanding discovery of fullerenes and carbon nanotubes. One of the main ideas behind this approach is to improve the matrix mechanical performance. The nanoparticles exhibit higher specific surface area, surface energy, and density compared to microparticles and, hence, lower nanofiller concentrations are needed to attain properties comparable to, or even better than, those obtained by conventional microfiller loadings, which facilitates processing and minimizes the increase in composite weight. The addition of nanoparticles into different polymer matrices opens up an important research area in the field of composite materials. Moreover, many different types of inorganic nanoparticles, such as quantum dots, metal oxides, and ceramic and metallic nanoparticles, have been incorporated into polymers for their application in a wide range of fields, ranging from medicine to photovoltaics, packaging, and structural applications.

Keywords

fabrication --- multielectrode array (MEA) --- PDMS --- PDMS etching --- plateau-shaped electrode --- recessed electrode --- spinal cord signal recording --- underexposure --- organosilane --- quartz microcrystal --- encapsulant --- refractive index --- thermal conductivity --- poly(dimethylsiloxanes) --- surface modification --- nanosilica --- diethyl carbonate --- carbon content --- morphology --- coatings --- fillers --- hybrid hydrogel --- MAPOSS --- mechanical properties --- swelling --- drug release --- dental resin --- methacryl POSS --- shrinkage --- hardness --- scratch resistance --- ceramizable silicone rubber --- borate --- halloysite --- composite --- ceramizable mechanism --- polysiloxanes --- mortar --- basalt fibre --- roughness --- surface free energy --- poly(ethylene glycol) (PEG) --- hydrophilic --- non-releasable --- polydimethylsiloxane --- coatings --- cross-linking --- surface --- amphiphilic --- anti-bioadhesion --- hyperbranched poly(methylhydrosiloxanes) --- hydrolytic polycondensation --- 29Si-NMR --- topology of polysiloxane chains --- polyhedral oligomeric silsesquioxanes --- high molecular weight --- nanoparticles --- PDMS --- sugar templating process --- 3D porous network --- thermal stability --- TG-FTIR --- X-ray (Micro-CT) microtomography --- sol-gel --- hybrids --- chlorogenic acid --- bioactivity --- FTIR --- TG --- polysiloxanes --- theranostics --- drug delivery --- nanomedicine --- PDMS --- silicon --- ultraviolet (UV) curable coatings --- low surface energy materials --- fluorinated siloxane resin

Nanoparticle-Reinforced Polymers

Author:
ISBN: 9783039212835 / 9783039212842 Year: Pages: 334 DOI: 10.3390/books978-3-03921-284-2 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Science (General) --- Chemistry (General)
Added to DOAB on : 2019-08-28 11:21:27
License:

Loading...
Export citation

Choose an application

Abstract

This book, a collection of 12 original contributions and 4 reviews, provides a selection of the most recent advances in the preparation, characterization, and applications of polymeric nanocomposites comprising nanoparticles. The concept of nanoparticle-reinforced polymers came about three decades ago, following the outstanding discovery of fullerenes and carbon nanotubes. One of the main ideas behind this approach is to improve the matrix mechanical performance. The nanoparticles exhibit higher specific surface area, surface energy, and density compared to microparticles and, hence, lower nanofiller concentrations are needed to attain properties comparable to, or even better than, those obtained by conventional microfiller loadings, which facilitates processing and minimizes the increase in composite weight. The addition of nanoparticles into different polymer matrices opens up an important research area in the field of composite materials. Moreover, many different types of inorganic nanoparticles, such as quantum dots, metal oxides, and ceramic and metallic nanoparticles, have been incorporated into polymers for their application in a wide range of fields, ranging from medicine to photovoltaics, packaging, and structural applications.

Keywords

chemical and physical interface --- surface modification of silica --- latex compounding method --- silica/NR composite --- thermoresponsive hyperbranched polymer --- gold nanoparticles --- in-situ synthesis --- colorimetric sensor --- silver ions --- Ag nanoparticles --- catalysis --- composite membrane --- separation --- SiO2 microspheres --- inorganic nanotubes --- PHBV --- nanomaterials --- morphology --- crystallization kinetics --- nanocomposite --- conductive polymer --- solar cell --- graphene --- graphene oxide --- power-conversion efficiency --- electrode --- active layer --- interfacial layer --- layered structures --- polymer-matrix composites --- mechanical properties --- gas barrier properties --- N-isopropylacrylamide --- N-isopropylmethacrylamide --- ratiometric temperature sensing --- FRET --- chain topology --- selective adsorption --- polymer-NP interface --- organic light-emitting diodes (OLEDs) --- PFO/MEH-PPV hybrids --- SiO2/TiO2 nanocomposite --- optoelectronic properties --- fluorescent assay --- fluorescence resonance energy transfer --- conjugated polymer nanoparticles --- gold nanoparticles --- melamine --- polymers --- composites --- carbon nanoparticles --- nano-hybrids --- nanocomposites --- sol–gel --- in situ synthesis --- metal oxides --- reduced graphene oxide --- graphene-like WS2 --- bismaleimide --- mechanical properties --- carrier transport --- polypropylene nanocomposite --- molecular chain motion --- electrical breakdown --- electric energy storage --- thermoplastic nanocomposite --- polyethylene --- power cable insulation --- electrical property --- structure-property relationship --- hybrid hydrogels --- nanoparticles --- nanosheets --- clays --- polymers --- adhesion --- n/a

Listing 1 - 10 of 17 << page
of 2
>>
Sort by
-->