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Book
Advances in High-Efficiency LLC Resonant Converters
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Year: 2020 Publisher: Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute

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Abstract

This book covers several research items related to LLC resonant converters, which were published in a Special Issue of Energies on the subject area of "Advances in High-Efficiency LLC Resonant converter". It focuses on emerging power electronic topologies related to the LLC resonant converter, and its design methodology and control algorithms. Topics of interest include LLC resonant topologies, resonant tank design methodology for high efficiency, power loss analysis in LLC resonant converters, high-frequency magnetics for resonant converters, wide band-gap devices applied to LLC resonant converter, and advanced control algorithm for LLC resonant converter.


Book
Recent Technical Developments in Energy-Efficient 5G Mobile Cells
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Year: 2020 Publisher: Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute

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This book addresses the true innovation in engineering design that may be promoted by blending together models and methodologies from different disciplines, and, in this book, the target was exactly to follow this approach to deliver a new disruptive architecture to deliver these next-generation mobile small cell technologies. According to this design philosophy, the work within this book resides in the intersection of engineering paradigms that includes “cooperation”, “network coding”, and “smart energy-aware frontends”. These technologies will not only be considered as individual building blocks, but re-engineered according to an inter-design approach resulting in the enabler for energy efficient femtocell-like services on the move. The book aims to narrow the gap between the current networking technologies and the foreseen requirements that are targeted at the future development of the 5G mobile and wireless communications networks in terms of the higher networking capacity, the ability to support more users, the lower cost per bit, the enhanced energy efficiency, and adaptability to new services and devices (for example, smart cities, and the Internet of things (IoT)).

Keywords

microstrip --- tuneable filter --- microwave filter --- 5G --- MEMSs --- varactor --- 4G --- CR --- MIMO --- reconfigurable antenna --- switch --- UWB --- WiMAX --- WLAN --- wireless communications --- cooperative NOMA --- multi-points DF relaying nodes --- half-duplex --- full-duplex --- Rayleigh fading channels --- Nakagami-m fading channels --- energy harvesting --- non-orthogonal multiple access --- multiple antenna --- transmit antenna selection --- outage probability --- pattern reconfigurable --- patch antenna --- s-parameters --- frequency reconfigurable --- dual-band Doherty power amplifier --- LTE-advanced --- high-efficiency --- phase offset lines --- impedance inverter network --- phase compensation network --- High power amplifiers --- high efficiency --- Doherty power amplifier --- GaN-HEMT --- small cell --- maximum transmit power --- UE --- open-loop power control --- interference --- ergodic capacity --- non-linear energy harvesting --- NOMA --- monopole antenna --- S-parameters --- 5G, 4/4.5G --- LTE --- ISM --- WiFi --- 5G antenna --- slot antenna --- mobile terminal antenna --- MIMO antenna --- medical applications --- miniaturized antenna --- arc-shaped --- dual-band --- chiral --- Tellegen --- multilayer CPW structure --- dispersion characteristics --- full-GEMT --- Muller’s method --- complex propagation constant --- acceleration procedure --- ISM 2.4 GHz --- isolation --- envelope correlation coefficient (ECC) --- channel capacity loss (CCL) --- 5G technology --- CPW-fed antenna --- diversity antenna --- future smartphones --- MIMO systems --- n/a --- Muller's method


Book
Intermittency and Self-Organisation in Turbulence and Statistical Mechanics
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ISBN: 3039211099 3039211080 Year: 2019 Publisher: MDPI - Multidisciplinary Digital Publishing Institute

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There is overwhelming evidence, from laboratory experiments, observations, and computational studies, that coherent structures can cause intermittent transport, dramatically enhancing transport. A proper description of this intermittent phenomenon, however, is extremely difficult, requiring a new non-perturbative theory, such as statistical description. Furthermore, multi-scale interactions are responsible for inevitably complex dynamics in strongly non-equilibrium systems, a proper understanding of which remains a main challenge in classical physics. As a remarkable consequence of multi-scale interaction, a quasi-equilibrium state (the so-called self-organisation) can however be maintained. This special issue aims to present different theories of statistical mechanics to understand this challenging multiscale problem in turbulence. The 14 contributions to this Special issue focus on the various aspects of intermittency, coherent structures, self-organisation, bifurcation and nonlocality. Given the ubiquity of turbulence, the contributions cover a broad range of systems covering laboratory fluids (channel flow, the Von Kármán flow), plasmas (magnetic fusion), laser cavity, wind turbine, air flow around a high-speed train, solar wind and industrial application.


Book
Advances in Intelligent Vehicle Control
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ISBN: 3036560106 3036560092 Year: 2022 Publisher: Basel MDPI - Multidisciplinary Digital Publishing Institute

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This book is a printed edition of the Special Issue Advances in Intelligent Vehicle Control that was published in the journal Sensors. It presents a collection of eleven papers that covers a range of topics, such as the development of intelligent control algorithms for active safety systems, smart sensors, and intelligent and efficient driving. The contributions presented in these papers can serve as useful tools for researchers who are interested in new vehicle technology and in the improvement of vehicle control systems.

Keywords

Technology: general issues --- History of engineering & technology --- nonlinear height control --- active air suspension --- output constraints --- random road excitation --- disturbance observer design --- electric vehicles --- in-vehicle network --- controller area network --- cybersecurity --- intrusion detection --- deep learning --- transfer learning --- model-based control --- vehicle dynamic potential --- tyre thermodynamics --- tyre wear --- weather influence --- vehicle safety --- double lane change --- safety optimization --- noninverting buck–boost converter --- high efficiency --- wide bandwidth control --- discrete-time sliding-mode current control (DSMCC) --- electric vehicle (EV) --- driver vehicle system --- energy management --- vehicle localization --- GNSS receivers --- RTK corrections --- sensor redundancy --- VMS --- machine learning --- ADAS --- image processing --- environment perception --- semantics --- 3D multiple object detection --- multiple object tracking --- dynamic SLAM --- roll angle estimator --- Kalman filter --- LQR controller --- inertial sensors --- motorcycle lean angle --- electrical vehicles --- EV charging scheduling --- binary linear programming --- binary quadratic programming --- vehicle control --- reinforcement learning --- curriculum learning --- sim-to-real world --- intelligent mobility --- heterogeneous vehicular communication --- Internet of connected vehicles --- vehicular ad hoc networks --- heterogeneous networking --- Internet of Things --- n/a --- noninverting buck-boost converter


Book
Application of Power Electronics Converters in Smart Grids and Renewable Energy Systems
Authors: ---
Year: 2022 Publisher: Basel MDPI - Multidisciplinary Digital Publishing Institute

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This book focuses on the applications of Power Electronics Converters in smart grids and renewable energy systems. The topics covered include methods to CO2 emission control, schemes for electric vehicle charging, reliable renewable energy forecasting methods, and various power electronics converters. The converters include the quasi neutral point clamped inverter, MPPT algorithms, the bidirectional DC-DC converter, and the push–pull converter with a fuzzy logic controller.


Book
Advanced DC-DC Power Converters and Switching Converters
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Year: 2021 Publisher: Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute

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Nowadays, power electronics is an enabling technology in the energy development scenario. Furthermore, power electronics is strictly linked with several fields of technological growth, such as consumer electronics, IT and communications, electrical networks, utilities, industrial drives and robotics, and transportation and automotive sectors. Moreover, the widespread use of power electronics enables cost savings and minimization of losses in several technology applications required for sustainable economic growth. The topologies of DC–DC power converters and switching converters are under continuous development and deserve special attention to highlight the advantages and disadvantages for use increasingly oriented towards green and sustainable development. DC–DC converter topologies are developed in consideration of higher efficiency, reliable control switching strategies, and fault-tolerant configurations. Several types of switching converter topologies are involved in isolated DC–DC converter and nonisolated DC–DC converter solutions operating in hard-switching and soft-switching conditions. Switching converters have applications in a broad range of areas in both low and high power densities. The articles presented in the Special Issue titled "Advanced DC-DC Power Converters and Switching Converters" consolidate the work on the investigation of the switching converter topology considering the technological advances offered by innovative wide-bandgap devices and performance optimization methods in control strategies used.


Book
Biomass for Energy Application
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Year: 2021 Publisher: Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute

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This book focuses on the utilization of biomass for energy applications and mainly covers the original research and studies related to thermochemical conversion, biological conversion and physical conversion. It contains a summary the current scientific knowledge in the field of biomass utilization, which is the first of its kind in the literature. Energy potentials and different principles of energy transformation from various renewable energy sources (bamboo, wood residue, straw, sorrel, hay, pines, sunflower stalks, hazelnut husks, quinoa, camelina, crambe, safflower, muscantus and municipal sewage sludge, among others) are described in detail in this book. Different types of pyrolysis or torrefaction processing, combustion, thermal degradation, mechanical properties affecting processing, pre-treatment or treatment processes, or other processes based on thermochemical methods are described as well. The integral part of this book is the bibliometric analysis of worldwide publication trends on biomass and bioenergy with respect to the research evolution with the possibility of predicting future scenarios and the participation of stakeholders in the sector.

Keywords

pyrolysis --- catalyst --- wood --- waste --- energy --- biogas --- biomass --- cropping system --- establishment --- intercropping --- low-input --- maize --- miscanthus --- methane yield --- perennial crop --- solid biofuel --- waste management --- Coffea spp. --- waste biomass --- calorific value --- mechanical durability --- Pinus pseudostrobus --- Pinus leiophylla --- Pinus montezumae --- pyrolysis kinetics --- TGA-DTG --- Friedman-OFW-KAS models --- FT-IR --- deposit --- biomass industrial boiler --- alkali metal --- circulating fluidized bed --- olive mill solid wastes --- natural binder --- densification --- compressive strength --- Physico-chemical properties --- kinetic parameters --- hydrogen --- reactor headspace --- product inhibition --- kinetic modelling --- clostridium acetobutylicum --- biomass analysis --- alternative biofuels --- emissions --- sewage sludge --- biofuels --- combustion --- grate furnace --- emission --- ash deposition --- biomass densification --- mechanical compaction --- processing factors --- briquette durability --- multivariate tests of significance --- renewable energy --- bioenergy scenario --- biomasses --- systematic review --- pressure torrefaction --- pellet --- renewable energy sources --- energy consumption --- grinding --- thermogravimetric analysis --- proximate analysis --- high heating value --- torrefied biomass --- biochar --- one-pot fractionation with acidic 1,4-dioxane --- Moso bamboo --- furfural --- phenolated lignin --- enzymatic hydrolysis --- high-efficiency fractionation


Book
Nanoelectronic Materials, Devices and Modeling
Authors: ---
ISBN: 3039212265 3039212257 Year: 2019 Publisher: MDPI - Multidisciplinary Digital Publishing Institute

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As CMOS scaling is approaching the fundamental physical limits, a wide range of new nanoelectronic materials and devices have been proposed and explored to extend and/or replace the current electronic devices and circuits so as to maintain progress with respect to speed and integration density. The major limitations, including low carrier mobility, degraded subthreshold slope, and heat dissipation, have become more challenging to address as the size of silicon-based metal oxide semiconductor field effect transistors (MOSFETs) has decreased to nanometers, while device integration density has increased. This book aims to present technical approaches that address the need for new nanoelectronic materials and devices. The focus is on new concepts and knowledge in nanoscience and nanotechnology for applications in logic, memory, sensors, photonics, and renewable energy. This research on nanoelectronic materials and devices will be instructive in finding solutions to address the challenges of current electronics in switching speed, power consumption, and heat dissipation and will be of great interest to academic society and the industry.

Keywords

quantum mechanical --- n/a --- neuromorphic computation --- off-current (Ioff) --- double-gate tunnel field-effect-transistor --- topological insulator --- back current blocking layer (BCBL) --- CMOS power amplifier IC --- information integration --- distributed Bragg --- spike-timing-dependent plasticity --- electron affinity --- enhancement-mode --- current collapse --- gallium nitride (GaN) --- band-to-band tunneling --- vertical field-effect transistor (VFET) --- ionic liquid --- luminescent centres --- thermal coupling --- vision localization --- PC1D --- UAV --- ZnO/Si --- dual-switching transistor --- memristor --- field-effect transistor --- higher order synchronization --- shallow trench isolation (STI) --- memristive device --- on-current (Ion) --- low voltage --- reflection transmision method --- dielectric layer --- source/drain (S/D) --- high efficiency --- nanostructure synthesis --- InAlN/GaN heterostructure --- supercapacitor --- high-electron mobility transistor (HEMTs) --- heterojunction --- p-GaN --- recessed channel array transistor (RCAT) --- gate field effect --- charge injection --- saddle FinFET (S-FinFET) --- L-shaped tunnel field-effect-transistor --- conductivity --- energy storage --- hierarchical --- PECVD --- sample grating --- MISHEMT --- bistability --- threshold voltage (VTH) --- bandgap tuning --- oscillatory neural networks --- UV irradiation --- Mott transition --- third harmonic tuning --- topological magnetoelectric effect --- cross-gain modulation --- 2D material --- solar cells --- silicon on insulator (SOI) --- Green’s function --- optoelectronic devices --- semiconductor optical amplifier --- ZnO films --- graphene --- AlGaN/GaN --- polarization effect --- two-photon process --- conductive atomic force microscopy (cAFM) --- 2DEG density --- vanadium dioxide --- interface traps --- potential drop width (PDW) --- pattern recognition --- drain-induced barrier lowering (DIBL) --- atomic layer deposition (ALD) --- normally off power devices --- gate-induced drain leakage (GIDL) --- insulator–metal transition (IMT) --- zinc oxide --- synaptic device --- subthreshold slope (SS) --- landing --- silicon --- corner-effect --- conditioned reflex --- quantum dot --- gallium nitride --- bismuth ions --- conduction band offset --- variational form --- Green's function --- insulator-metal transition (IMT)


Book
Optoelectronic Nanodevices
Author:
ISBN: 3039286978 303928696X Year: 2020 Publisher: MDPI - Multidisciplinary Digital Publishing Institute

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During the last decade, novel graphene related materials (GRMs), perovskites, as well as metal oxides and other metal nanostructures have received the interest of the scientific community. Due to their extraordinary physical, optical, thermal, and electrical properties, which are correlated with their 2D ultrathin atomic layer structure, large interlayer distance, ease of functionalization, and bandgap tunability, these nanomaterials have been applied in the development or the improvement of innovative optoelectronic applications, as well as the expansion of theoretical studies and simulations in the fast-growing fields of energy (photovoltaics, energy storage, fuel cells, hydrogen storage, catalysis, etc.), electronics, photonics, spintronics, and sensing devices. The continuous nanostructure-based applications development has provided the ability to significantly improve existing products and to explore the design of materials and devices with novel functionalities. This book demonstrates some of the most recent trends and advances in the interdisciplinary field of optoelectronics. Most articles focus on light emitting diodes (LEDs) and solar cells (SCs), including organic, inorganic, and hybrid configurations, whereas the rest address photodetectors, transistors, and other well-known dynamic optoelectronic devices. In this context, this exceptional collection of articles is directed at a broad scientific audience of chemists, materials scientists, physicists, and engineers, with the goals of highlighting the potential of innovative optoelectronic applications incorporating nanostructures and inspiring their realization.

Keywords

graphene oxide --- textured silicon solar cells --- n/a --- high-efficiency --- CdTe microdots --- piezo-phototronic effect --- electromagnetically induced transparency effect --- waveguide photons --- light output power --- hole injection --- ternary organic solar cells --- UV LEDs --- cathodoluminescence --- V-pits --- quantum confinement effect --- nano-grating --- metamaterials --- Ga2O3 --- tunneling --- transmittance --- graphene ink --- perovskite solar cells --- counter electrode --- nucleation layer --- Ag film --- AlGaN-based ultraviolet light-emitting diode --- color-conversion efficiency --- PeLEDs --- photoelectric performance --- photocurrent --- charge transfer --- double-layer ITO --- green LED --- liquid crystals --- photovoltaics --- electrowetting --- oxidation --- Fowler–Nordheim --- field emission --- excitation wavelength --- functionalization --- quantum dots --- gold split-ring --- cascade effect --- erbium --- transparent conductive electrode --- compact --- plasmon resonance --- air-processed --- FDTD --- prism-structured sidewall --- sheet resistance --- GaN --- Ti porous film --- stability --- flip-chip mini-LED --- flexible substrate --- actively tunable nanodevices --- green LEDs --- metasurfaces --- antireflective coating (ARC) --- NiCo2S4 nanotubes --- InN/p-GaN heterojunction --- InGaN/GaN superlattice --- OAB --- graded indium composition --- plasmonics --- polymer composites --- photomultiplication --- cold cathode --- solvent --- solar cells --- controllable synthesis --- tunable absorbers --- interface --- graphene --- silicon transistor --- colorimetry --- light extraction --- reduced graphene oxide --- pinhole pattern --- indium nanoparticles (In NPs) --- graphene split-ring --- organic solar cell --- light-emitting diode --- organic --- plasmonic forward scattering --- smooth --- subwavelength metal grating --- perovskite --- photoluminescence --- mid infrared --- polarization analyzer --- transparent electrode --- external quantum efficiency --- LED --- light-emitting diodes --- photodetector --- p-type InGaN --- quantum efficiency --- 2D perovskite --- quantum dot --- orthogonal polarization --- current spreading --- localized surface plasmon --- Schottky barrier --- Fowler-Nordheim


Book
Secure and Sustainable Energy System
Authors: ---
ISBN: 3036557148 303655713X Year: 2022 Publisher: Basel MDPI - Multidisciplinary Digital Publishing Institute

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Abstract

This special issue aims to contribute to the climate actions which called for the need to address Greenhouse Gas (GHG) emissions, keeping global warming to well below 2°C through various means, including accelerating renewables, clean fuels, and clean technologies into the entire energy system. As long as fossil fuels (coal, gas and oil) are still used in the foreseeable future, it is vital to ensure that these fossil fuels are used cleanly through abated technologies. Financing the clean and energy transition technologies is vital to ensure the smooth transition towards net zero emission by 2050 or beyond. The lack of long‐term financing, the low rate of return, the existence of various risks, and the lack of capacity of market players are major challenges to developing sustainable energy systems.This special collected 17 high-quality empirical studies that assess the challenges for developing secure and sustainable energy systems and provide practical policy recommendations. The editors of this special issue wish to thank the Economic Research Institute for ASEAN and East Asia (ERIA) for funding several papers that were published in this special issue.

Keywords

Research & information: general --- Physics --- industrial energy intensity --- pollution emission intensity --- quantile DID method --- Beijing–Tianjin–Hebei coordinated development --- China --- environmental Kuznets curve --- CO2 emission --- energy efficiency --- economic growth --- panel ARDL --- DEA --- energy transition --- renewables --- hydrogen --- fossil fuels --- emissions --- FDIA --- blockchain --- data exchanging --- under-operating agents --- ISO --- electricity market --- Saudi Arabia --- energy sustainability --- world energy trilemma index --- Bayesian Belief Network --- green technology --- sustainability --- climate change --- Southeast Asia --- energy policy --- high-efficiency --- low-emission --- carbon dioxide emissions --- carbon pricing --- subcritical --- desulphurization --- denitrification --- cost–benefit analysis --- levelized cost of electricity --- energy supply security --- energy dependence --- energy diversity --- business as usual (BAU) --- Alternative Policy Scenarios (APSs) --- clean technologies --- and resiliency --- multi plant firms --- environmental assessment --- local-global performance --- wind energy --- power trade --- counterfactual scenario --- ASEAN --- natural gas --- multi-objective --- goal programming --- optimization --- allocation --- connectivity --- energy infrastructure --- Mekong Subregion --- green bonds --- post-COVID-19 era --- Asia and the Pacific --- green finance --- sustainable development --- thermal energy storage (TES) --- latent heat thermal energy storage (LHTES) --- circular economy --- environmental sustainability --- life cycle assessment (LCA) --- physico-chemical characterization --- Coats–Redfern model --- flammability --- integral model --- iso-conversional --- wind farm site selection --- multi-criteria decision-making system --- Analytic Hierarchy Process --- Semnan province --- ArcGIS

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