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Humidity Sensors. Advances in Reliability, Calibration and Application

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ISBN: 9783039211227 9783039211234 Year: Pages: 198 DOI: 10.3390/books978-3-03921-123-4 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Technology (General) --- General and Civil Engineering
Added to DOAB on : 2019-08-28 11:21:27
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Humidity detection has deep significance for the scientific research surrounding medical care and human performance, and the industrial development of agriculture, geography and automated instruments. This special issue aims to showcase some of the advancements in humidity sensor design and calibration, and its applications. The selected papers cover a variety of humidity sensor-related topics including material science, chemistry and industrial engineering. Through dedicated contributions from peer reviewers and the editorial team, this book aims to offers reader some insight into the field of humidity sensor development and use.

Stimuli-Responsive Polymer Systems—Recent Manufacturing Techniques and Applications

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ISBN: 9783039214839 9783039214846 Year: Pages: 92 DOI: 10.3390/books978-3-03921-484-6 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Technology (General) --- General and Civil Engineering
Added to DOAB on : 2019-12-09 11:49:15
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Stimuli-responsive polymer systems can be defined as functional materials that show physical or chemical property changes in response to external stimuli such as temperature, radiation, chemical agents, pH, mechanical stress, and electric and magnetic fields. Recent developments in manufacturing techniques have facilitated the production of a wide range of stimuli-responsive polymer systems, such as micro- and nanoscale structures, with potential applications in soft sensors and actuators, smart textiles, soft robots, and artificial muscles. This book brings together the recent progress in manufacturing techniques, with particular emphasis on 3D and 4D printing and applications of stimuli-responsive polymer systems in biomedicine and soft robotics.

Selected Papers from the 1st International Online Conference on Nanomaterials

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ISBN: 9783039285341 9783039285358 Year: Pages: 92 DOI: 10.3390/books978-3-03928-535-8 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Science (General) --- Physics (General)
Added to DOAB on : 2020-04-07 23:07:09
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This book compiles selected papers from the Proceedings of the 1st International Online Conference on Nanomaterials, held 1–15 September, 2018 on sciforum.net, an online platform for hosting scholarly e-conferences and discussion groups. It targets a broad readership of physicists, chemists, materials scientists, biologists, environmentalists, and nanotechnologists, and provides interesting examples of the most recent advances in the synthesis, characterization, and applications of nanomaterials.

Silicon-Based Nanomaterials: Technology and Applications

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ISBN: 9783039210428 9783039210435 Year: Pages: 94 DOI: 10.3390/books978-3-03921-043-5 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Technology (General) --- General and Civil Engineering
Added to DOAB on : 2019-06-26 08:44:06
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Silicon has been proven to be remarkably resilient as a commercial electronic material. The microelectronics industry has harnessed nanotechnology to continually push the performance limits of silicon devices and integrated circuits. Rather than shrinking its market share, silicon is displacing “competitor” semiconductors in domains such as high-frequency electronics and integrated photonics. There are strong business drivers underlying these trends; however, an important contribution is also being made by research groups worldwide, who are developing new configurations, designs, and applications of silicon-based nanoscale and nanostructured materials. This Special Issue features a selection of papers which illustrate recent advances in the preparation of chemically or physically engineered silicon-based nanostructures and their application in electronic, photonic, and mechanical systems.

Abiotic Stress Effects on Performance of Horticultural Crops

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ISBN: 9783039217502 9783039217519 Year: Volume: 1 Pages: 126 DOI: 10.3390/books978-3-03921-751-9 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Science (General) --- Biology --- Agriculture (General)
Added to DOAB on : 2019-11-05 10:43:33
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Horticultural crop yield and quality depend on genotype, environmental conditions, and production management. In particular, adverse environmental conditions may greatly affect crop performance, reducing crop yield by 50%–70%. Abiotic stresses such as cold, heat, drought, flooding, salinity, nutrient deficiency, and ultraviolet radiation affect multiple physiological and biochemical mechanisms in plants as they attempt to cope with the stress conditions. However, different crop species can have different sensitivities or tolerances to specific abiotic stresses. Tolerant plants may activate different strategies to adapt to or avoid the negative effect of abiotic stresses. At the physiological level, photosynthetic activity and light-use efficiency of plants may be modulated to enhance tolerance against the stress. At the biochemical level, several antioxidant systems may be activated, and many enzymes may produce stress-related metabolites to help avoid cellular damage, including compounds such as proline, glycine betaine, and amino acids. Within each crop species there is a wide variability of tolerance to abiotic stresses, and some wild relatives may carry useful traits for enhancing the tolerance to abiotic stresses in their progeny through either traditional or biotechnological breeding. The research papers and reviews presented in this book provide an update of the scientific knowledge of crop interactions with abiotic stresses.

Heat and Mass Transfer in Building Energy Performance Assessment

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ISBN: 9783039219261 9783039219278 Year: Pages: 122 DOI: 10.3390/books978-3-03921-927-8 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Technology (General) --- General and Civil Engineering --- Materials
Added to DOAB on : 2020-01-07 09:08:26
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The building industry is influenced by many factors and trends reflecting the current situation and developments in social, economic, technical, and scientific fields. One of the most important trends seeks to minimize the energy demand. This can be achieved by promoting the construction of buildings with better thermal insulating capabilities of their envelopes and better efficiency in heating, ventilation, and air conditioning systems. Any credible assessment of building energy performance includes the identification and simulation of heat and mass transfer phenomena in both the building envelope and the interior of the building. As the interaction between design elements, climate change, user behavior, heating effectiveness, ventilation, air conditioning systems, and lighting is not straightforward, the assessment procedure can present a complex and challenging task. The simulations should then involve all factors affecting the energy performance of the building in questions. However, the appropriate choice of physical model of heat and mass transfer for different building elements is not the only factor affecting the output of building energy simulations. The accuracy of the material parameters applied in the models as input data is another potential source of uncertainty. For instance, neglecting the dependence of hygric and thermal parameters on moisture content may affect the energy assessment in a significant way. Boundary conditions in the form of weather data sets represent yet another crucial factor determining the uncertainty of the outputs. In light of recent trends in climate change, this topic is vitally important. This Special Issue aims at providing recent developments in laboratory analyses, computational modeling, and in situ measurements related to the assessment of building energy performance based on the proper identification of heat and mass transfer processes in building structures.

Plasma Catalysis

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ISBN: 9783038977506 Year: Pages: 246 DOI: 10.3390/books978-3-03897-751-3 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Chemical Engineering --- Technology (General)
Added to DOAB on : 2019-04-05 10:34:31
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Plasma catalysis is gaining increasing interest for various gas conversion applications, such as CO2 conversion into value-added chemicals and fuels, N2 fixation for the synthesis of NH3 or NOx, methane conversion into higher hydrocarbons or oxygenates. It is also widely used for air pollution control (e.g., VOC

Preservation of Cultural Heritage and Resources Threatened by Climate Change

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ISBN: 9783039211241 9783039211258 Year: Pages: 186 DOI: 10.3390/books978-3-03921-125-8 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Science (General)
Added to DOAB on : 2019-12-09 11:49:15
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With its wide spectrum of data, case studies, monitoring, and experimental and numerical simulation techniques, the multidisciplinary approach of material, environmental, and computer science applied to the conservation of cultural heritage offers several opportunities for the heritage science and conservation community to map and monitor state-of-the-art knowledge on natural and human-induced climate change impacts on cultural heritage—mainly constituted by the built environment—in Europe and Latin America. Geosciences’ Special Issue titled “Preservation of Cultural Heritage and Resources Threatened by Climate Change” was launched to take stock of the existing but still fragmentary knowledge on this challenge, and to enable the community to respond to the implementation of the Paris agreement. These 10 papers exploit a broad range of data derived from preventive conservation monitoring conducted indoors in museums, churches, historical buildings, or outdoors in archeological sites and city centers. Case studies presented in the papers focus on a well-assorted sample of decay phenomena occurring on heritage materials (e.g., surface recession and biomass accumulation on limestone, depositions of pollutant on marble, salt weathering on inorganic building materials, and weathering processes on mortars in many local- to regional-scale study areas in the Scandinavian Peninsula, the United Kingdom, Belgium, France, Italy, Greece, and Panama). Besides monitoring, the methodological approaches showcased include, but are not limited to, original material characterization, decay product characterization, and climate and numerical modelling on material components for assessing environmental impact and climate change effects.

Processing-Structure-Properties Relationships in Polymers

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ISBN: 9783039218806 9783039218813 Year: Pages: 400 DOI: 10.3390/books978-3-03921-881-3 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Technology (General) --- General and Civil Engineering
Added to DOAB on : 2020-01-07 09:08:26
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This collection of research and review papers is aimed at depicting the state of the art on the possible correlations between processing variables, obtained structure and special properties which this structure induces on the plastic part. The extraordinary capacity of plastics to modify their properties according to a particular structure is evidenced for several transformation processes and for many applications. The final common goal is to take profit of this peculiar capacity of plastics by inducing, through a suitable processing, a specific spatial organization.

Keywords

carbon nanotube --- homogeneous dispersion --- ethylene vinyl acetate --- mechanical performance --- electrical conductivity --- microencapsulation --- melamine polyphosphate --- polyurethane --- composite --- flame retardant --- biodegradable nanofibers --- PLGA --- collagen --- epinephrine --- lidocaine --- polyimide film --- linear coefficient of thermal expansion (CTE) --- copper clad laminate --- structure and properties --- polymorphism --- isotactic polypropylene --- deformation --- phase transitions --- uniaxial compression --- uniaxial tensile deformation --- temperature --- in situ X-ray --- cavitation --- indentation --- Harmonix AFM --- polymer morphology --- mechanical properties --- ultra-high molecular weight polyethylene (UHMWPE) --- microcellular injection molding --- supercritical fluid --- supercritical N2 --- supercritical CO2 --- tissue engineering and regenerative medicine --- bioresorbable polymers --- 3D printing/additive manufacturing --- fused filament fabrication/fused deposition modelling --- degradation --- physicochemical characterization --- polycaprolactone --- layered double hydroxides --- ionic liquids --- PLA --- reactive blending --- biobased films --- graphene --- nanoreinforcement --- curing rate --- epoxy microstructure --- fatigue --- composites --- critical gel --- poly(lactic acid) --- carbon black --- graphite --- polymer blend --- poly(ethylene terephthalate) --- intrinsic viscosity --- polyolefin --- compatibilizer --- isotactic polypropylene --- stress-induced phase transitions --- structural analysis --- X-ray diffraction --- polyoxymethylene (POM) --- octakis[(3-glycidoxypropyl)dimethylsiloxy]octasilsesquioxane (GPOSS) --- composites --- morphology --- mechanical properties --- conductive filler --- orientation --- conductive polymer composites --- foam --- model --- PLLA --- bioresorbable vascular scaffolds --- stretch blow molding --- biaxial elongation --- SAXS --- WAXS --- microfibrillar composites --- crystalline morphology --- crystallinity --- mechanical properties --- crystallisation --- morphology --- nanoparticles --- shear --- flow --- orientation --- poly(?-caprolactone) --- polyvinyl butyral --- hydrophobicity --- contact angle --- polypropylene --- atomic force microscopy --- injection molding --- mold temperature evolution --- polycaprolactone --- ultra-high molecular weight polyethylene --- incremental forming --- SPIF --- XRD --- chain orientation --- temperature sensitive --- gel --- controllable gas permeability --- breathable film --- polymer composite --- processing --- polyamide 6 --- compression molding --- polymorphism --- polyamide 6 --- injection molding --- polymorphism --- humidity --- mechanical properties

Carbon Based Electronic Devices

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ISBN: 9783039282326 9783039282333 Year: Pages: 258 DOI: 10.3390/books978-3-03928-233-3 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: General and Civil Engineering --- Technology (General)
Added to DOAB on : 2020-04-07 23:07:08
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For more than 50 years, silicon has dominated the electronics industry. However, this growth will come to an end, due to resources limitations. Thus, research developments need to focus to alternative materials, with higher performance and better functionality. Current research achievements have indicated that carbon is one of the promising candidates for its exploitation in the electronics industry. Whereas the physical properties of graphite and diamond have been investigated for many years, the potential for electronic applications of other allotropes of carbon (fullerenes, carbon nanotubes, carbon nanofibres, carbon films, carbon balls and beads, carbon fibers, etc), has only been appreciated relatively recently. Carbon-based materials offer a number of exciting possibilities for new applications of electronic devices, due to their unique thermal and electrical properties. However, the success of carbon-based electronics depends on the rapid progress of the fabrication, doping and manipulation techniques. In this Special Issue, we focus on both insights and advancements in carbon-based electronics. We will also cover various topics ranging from synthesis, functionalisation, and characterisation of carbon-based materials, for their use in electronic devices, including advanced manufacturing techniques, such as 3D printing, ink-jet printing, spray-gun technique, etc.

Keywords

ionization sensor array --- NOx --- carbon nanotube (CNT) --- selectivity --- non-self-sustaining discharge --- carbon nanotube --- field emitters --- electrical aging --- Joule heating --- electron emission --- photosensor --- reduced graphene oxide --- Ag nanoparticles --- solution process --- finite-difference time-domain --- carbon nanofibres (CNFs) --- active-screen plasma sputtering (ASPS) technology --- supercapacitors (SCs) --- silver (Ag) --- platinum (Pt) and palladium (Pd) nanoparticles --- transparent conducting electrode --- flexible electrode --- graphene --- optoelectronic device --- graphene --- Galinstan --- Liquid-Metal --- spray-on --- aerosol --- honey --- mobility --- contact resistance --- TLM --- I-V characteristics --- porous electrode --- pressure sensitivity --- self-powered sensors --- mechanical impact --- carbon nanofillers --- electrical conductivity --- piezoresistive behavior --- ReRAM --- carbon nanofibers --- spray-gun deposition --- carbon Inks --- rheology --- additive manufacturing --- graphene --- carbon nanotubes --- printing --- supercapacitors --- graphene oxide --- metal nanoparticles --- dodecylbenzene sulfonic acid (DBSA) doped polyaniline --- capacitance --- humidity sensor --- carbon-based materials --- carbon nanotubes --- graphene --- carbon black --- carbon fibers --- carbon soot --- biochar --- flexible electronics --- carbon nanotubes --- graphene --- carbon fibres --- functionalization --- supercapacitors --- sensors --- inkjet printer inks --- flexible wearable devices --- electronics --- carbon-based material --- carbon structure differentiation --- NEMS quality --- higher performances --- revised Raman characterization --- quantum electronic activation --- carbon phase transition --- n/a

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