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This book provides a solid foundation for understanding radar energy warfare and stealth technology. The book covers the fundamentals of radar before moving on to more advanced topics, including electronic counter and electronic counter-counter measures, radar absorbing materials, radar cross section, and the science of stealth technology. A final section provides an introduction to Luneberg lens reflectors. The book will provide scientists, engineers, and students with valuable guidance on the fundamentals needed to understand state-of-the-art radar energy warfare and stealth technology research and applications. Provides an introduction to the fundamentals of radar; Examines the technical challenges of stealth technology; Describes current fifth generation warplanes and the coming sixth generation.
Microwaves. --- Optical engineering. --- Optical materials. --- Electronic materials. --- Aerospace engineering. --- Astronautics. --- Lasers. --- Photonics. --- Microwaves, RF and Optical Engineering. --- Optical and Electronic Materials. --- Aerospace Technology and Astronautics. --- Optics, Lasers, Photonics, Optical Devices. --- New optics --- Optics --- Light amplification by stimulated emission of radiation --- Masers, Optical --- Optical masers --- Light amplifiers --- Light sources --- Optoelectronic devices --- Nonlinear optics --- Optical parametric oscillators --- Space sciences --- Aeronautics --- Astrodynamics --- Space flight --- Space vehicles --- Aeronautical engineering --- Astronautics --- Engineering --- Electronic materials --- Materials --- Mechanical engineering --- Hertzian waves --- Electric waves --- Electromagnetic waves --- Geomagnetic micropulsations --- Radio waves --- Shortwave radio --- Radar --- Stealth technology. --- Military applications. --- Low-observable technology --- Military art and science --- Naval art and science --- Military engineering
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"This monograph is intended for scientists and engineers working in the field of radar and computational electrodynamics. The book content is the result of works by group of authors who represent the scientific school of applied electrodynamics that had been established in the 1960s by Professor I.V. Sukharevsky within the Govorov Military Radiotechnical Academy. Representatives of this school went on studying electromagnetic wave scattering from objects of various nature consequently in Kharkiv Military University, United Scientific Research Institute of Ukrainian Armed Forces, and Kharkiv Ivan Kozhedub University of Air Force"--
Radar --- Electromagnetic waves --- Radar cross sections. --- Radar targets. --- Data processing. --- Scattering. --- Targets, Radar --- Cross sections, Radar --- Radar cross section measurements --- Radar echo areas --- RCS (Radar) --- Signal processing --- Scattering (Physics) --- Detectors --- Electronic systems --- Pulse techniques (Electronics) --- Radio --- Remote sensing --- Electromagnetics and Microwaves --- Communications System Design --- Aerospace Engineering --- ENG --- ElectricalEngineering --- MechanicalEngineering --- SCI-TECH --- STM --- Computational Electrodynamics --- Electromagnetic Scattering Theory --- Electromagnetic Wave Scattering --- Physical Optics Approximation --- Radar Cross-Section Prediction --- Radar Detection Algorithms --- Radar Microwaves --- Radar Recognition Algorithms --- Radar Scattering Computation --- Radar Scattering Software --- RCS Prediction --- Reduction of Radar Observability --- Sergey V. Nechitaylo --- Stealth Technology --- Valery M. Orlenko --- Vitaly A. Vasilets
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Polymer composite materials have attracted great interest for the development of electrical and electronic engineering and technology, and have been widely applied in electrical power systems, electrical insulation equipment, electrical and electronic devices, etc. Due to the significant expansion in the use of newly developed polymer composite materials, it is necessary to understand and accurately describe the relationship between composite structure and material properties, as only based on thorough laboratory characterization is it possible to estimate the properties for their future commercial applications. This book focuses on polymer composites applied in the field of electrical and electronic equipment, including but not limited to synthesis and preparation of new polymeric materials, structure–properties relationship of polymer composites, evaluation of materials application, simulation and modelling of material performance.
Technology: general issues --- History of engineering & technology --- Materials science --- aramid nanofiber --- hydrogen bonds --- electric breakdown strength --- mechanical strength --- alumina nanoplates --- SiC crystal form --- micro-nano compound --- thermal conductivity --- breakdown field strength --- space charge --- polyimide polymer --- unipolar electrical stress --- temperature --- frequency --- surface streamer discharge --- silicone rubber coating --- three-electrode arrangement --- thermally stimulated current method --- surface properties --- dielectric elastomer --- intrinsic property --- energy harvesting --- epoxy resins --- Langmuir --- terahertz --- molecular simulation --- prediction --- epoxy resin --- partial discharge --- active product --- electro-thermal dissociation --- reactive molecular dynamics --- polyimide --- graphitic carbon nitride nanosheets --- polydopamine --- interfacial interaction --- breakdown strength --- molecular dynamics simulation --- damping performance --- nitrile-butadiene rubber --- graphene oxide --- antioxidant 4010NA --- droplet vibration --- high voltage insulator --- polymeric surface --- corona discharge --- arcing --- creepage distance --- streamer discharge --- curved profiles --- streamer propagation “stability” field --- streamer propagation path --- streamer propagation velocity --- Eucommia ulmoides gum --- carbon nanotubes --- graphene --- electromagnetic shielding --- honeycomb sandwich composites --- metamaterial --- radar stealth --- microwave absorbing material --- low frequency
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This book contains the scientific contributions to the Special Issue entitled: "New Trends and Applications in Femtosecond Laser Micromachining". It covers an array of subjects, from the basics of femtosecond laser micromachining to specific applications in a broad spectra of fields such biology, photonics and medicine.
Research & information: general --- Physics --- Optical physics --- ultrafast laser microfabrication --- microfluidic --- glass bonding --- ultrashort laser pulses --- heat accumulation --- transparent materials --- quartz --- stealth dicing --- femtosecond --- fused silica --- double pulses --- selective chemical etching --- cell elasticity --- endothelial cells --- optical micromanipulation --- holographic optical tweezers --- two-photon polymerization --- image processing --- micromodels --- porous media --- 3D multi-depth channels --- laser machining --- femtosecond laser micromachining --- femtosecond laser material processing --- micro/nanotechnology fabrication --- atomic force microscope --- laser ablation diameter --- separation distance (SW) --- sub-micron bridges --- YBCO thin film --- photonic quantum chip --- femtosecond laser direct writing --- Hadamard gate --- CNOT gate --- path-encoded Bell state --- femtosecond laser --- fs-assisted cataract surgery --- laser-assisted ophthalmic surgery --- high pulse frequency --- low energy --- roughness analysis --- thermal annealing --- integrated optics --- glass micromachining --- 3D structuring --- n/a
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Lipid-based nanosystems, including solid lipid nanoparticles (SLNs) and nanostructured lipid carriers (NLCs), cationic lipid nanoparticles, nanoemulsions, and liposomes, have been extensively studied to improve drug delivery through different administration routes. The main advantages of these systems are their ability to protect, transport, and control the release of lipophilic and hydrophilic molecules (either small-molecular-weight molecules or macromolecules); the use of generally recognized as safe (GRAS) excipients that minimize the toxicity of the formulations; and the possibility to modulate pharmacokinetics and enable the site-specific delivery of encapsulated payloads. In addition, the versatility of lipid-based nanosystems has further been demonstrated for the delivery of vaccines, the protection of active cosmetic ingredients, and the improvement of moisturizing properties of cosmetic formulations.Lipid-based nanosystems are well established and there are already different commercially approved formulations for various human disorders. This success has paved the way for the diversification of the pipeline of development, to address unmet medical needs for several indications, such as cancer, neurological disorders, and autoimmune, genetic, and infectious diseases.This Special Issue aims to update readers on the latest research on lipid-based nanosystems, both at the preclinical and clinical levels. A series of 15 articles (six reviews and nine studies) is presented, with authors from 12 different countries, showing the globality of the investigations that are being carried out in this area.
Technology: general issues --- Echinococcus granulosus --- scolicidal --- nanoliposome --- juglone --- apoptotic activity --- hydrogel --- SLNs --- nose-to-brain delivery --- mucoadhesion --- quality by design --- antioxidant activity --- nasal administration --- nanostructured lipid carriers --- solid lipid nanoparticles --- in vitro cell cultures --- 3D nasal casts --- lung cancer --- targeted drug delivery --- lipid-based nanocarriers --- pulmonary delivery --- dry powder inhalers --- aerosols --- liposomes --- nanoemulsions --- nanotechnology --- biologically active compounds --- dermal drug delivery --- polyphenols --- phytophenols --- skin permeation --- chemotherapy --- radiotherapy --- active targeting --- passive targeting --- tumor --- immunoconjugate --- traditional liposome --- stealth liposome --- triggered release --- limitations of liposomes --- drug transfer --- in vitro release --- colloidal drug carriers --- lipid nanoparticles --- hydrogel beads --- cholesteryl nonanoate --- bovine serum albumin --- skin diseases --- lipid-based nanosystems --- cream --- ointment --- gel --- pH-sensitive --- liposome --- imidazole --- anticancer --- drug delivery --- multicellular spheroids --- dapagliflozin --- Box–Behnken design --- FTIR --- DSC --- XRD --- SEM --- AFM --- in vitro Franz diffusion cells --- lipid-based nanoparticles --- nanocarrier --- surface charge --- delivery systems --- chronic treatment --- mice --- anti-oxidant activity --- hepatoprotective effect --- phospholipid --- phytosomes --- Silymarin --- Colorectal Cancer --- Niosomes --- Oxaliplatin --- Paclitaxel --- d-α-tocopheryl polyethylene glycol 1000 succinate (TPGS) --- therapeutic nucleic acids --- schizophrenia --- quetiapine fumarate --- glycerosomes --- central composite rotatable design --- bioavailability --- pharmacokinetic --- n/a --- Box-Behnken design
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Regular physical activity (PA) is both a preventive measure and a cure for non-communicable diseases. Moreover, PA improves mental health, quality of life, and well-being. Conversely, physical inactivity and sedentary lifestyles have negative impacts on individuals, families, and society, as evidenced in particular by the spread of the obesity epidemic. PA has proven to be a low-cost alternative for the treatment and prevention of disease. Therefore, interventions to prevent avoidable diseases by increasing the proportion of physically active people are fundamental. The Special Issue “Physical Activity, Wellness and Health: Challenges, Benefits and Strategies” was collected research articles on anthropometric determinants of health and performance, PA and healthy habits, exercise and diet, exercise and body composition, interventions to promote PA for people of all ages, strategies for the implementation of an active life, and the beneficial effects of exercise on metabolic syndrome. A total of 20 articles were published, falling mainly into the following three areas: anthropometry, health, and sport; health benefits of exercise; population studies and strategies for an active life. All of the studies support strategies to promote PA and reduce sedentary behavior among adolescents, adults and the elderly. There is no doubt that regular exercise is beneficial to health, but the general population should be encouraged to engage in more of it.
Research & information: general --- handgrip strength --- anthropometry --- handedness --- body composition --- physical activity --- sports practice --- breast cancer --- bioimpedance --- adolescent --- adolescent health --- exercise --- health surveillance --- Kingdom of Saudi Arabia --- National Fitness Programs --- per capita area --- school sports facilities --- urban parks --- rural sports venues --- depression --- mortality --- cardiovascular diseases --- cardiovascular risk factors --- public health --- aging --- dose-response --- cardiorespiratory fitness --- agility test --- executive function --- strength --- older adults --- cardiovascular disease --- healthy ageing --- Ingwavuma --- KwaZulu-Natal --- modifiable behaviour --- rural --- South Africa --- medical diagnostic --- decision tree --- logistic regression --- machine learning --- adolescents --- students --- goal orientation --- emotional intelligence --- burnout --- multiple sclerosis --- accelerometer --- gender differences --- fitness --- foresight --- delphi study --- Europe --- healthy eating intention --- physical activity intention --- emotions --- aversive state --- reinforcement --- social support --- self-concept --- health utility --- quality of life --- rehabilitation --- stroke --- sleep quality --- perceived stress --- mediating effect --- Chinese college students --- dog walking --- health behavior change --- stealth health --- pet ownership --- human–animal interaction --- animal-assisted intervention --- targeted learning --- youth athletes --- soccer --- injury --- overuse --- maturation --- exercise participation --- physical self-concept --- self-esteem --- mental well-being --- mobile phone addiction --- procrastination --- college students --- China --- pandemic --- coronavirus --- physical exercise --- general health --- biopsychosocial model of health --- life course perspective --- university students --- multivariate analysis --- wellbeing --- n/a --- human-animal interaction
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Engineering practice has revealed that innovative technologies’ structural applications require new design concepts related to developing materials with mechanical properties tailored for construction purposes. This would allow the efficient use of engineering materials. The efficiency can be understood in a simplified and heuristic manner as the optimization of performance and the proper combination of structural components, leading to the consumption of the least amount of natural resources. The solution to the eco-optimization problem, based on the adequate characterization of the materials, will enable implementing environmentally friendly engineering principles when the efficient use of advanced materials guarantees the required structural safety. Identifying fundamental relationships between the structure of advanced composites and their physical properties is the focus of this book. The collected articles explore the development of sustainable composites with valorized manufacturability corresponding to Industrial Revolution 4.0 ideology. The publications, amongst others, reveal that the application of nano-particles improves the mechanical performance of composite materials; heat-resistant aluminium composites ensure the safety of overhead power transmission lines; chemical additives can detect the impact of temperature on concrete structures. This book demonstrates that construction materials’ choice has considerable room for improvement from a scientific viewpoint, following heuristic approaches.
Technology: general issues --- steel fiber reinforced concrete (SFRC) --- slender beams --- cyclic loading --- hysteretic response --- failure mode --- tests --- aluminum honeycomb --- deformation modes --- shock wave --- counter-intuitive behavior --- energy distribution --- acoustic stealth --- acoustic coating --- passive sound absorption --- active sound absorption --- acoustic characteristics of a submarine --- finite element method (FEM) --- slip --- group studs --- composite beam --- accelerated bridge construction --- steel fiber --- in situ amorphous coating --- laser surface remelting --- Ti-based alloy --- pipeline steel --- toughness --- cleavage unit --- crack propagation --- misorientation angles --- CFRP laminate --- mechanically fastened joints --- gradient material model --- dissimilar welding materials --- electron-beam welding --- fracture morphology --- fracture toughness --- crack deflection --- three-point bending test --- irreversible thermochromic --- cement composite --- manganese violet --- temperature indication --- heat monitoring --- cold-formed profiles --- high-strength steel --- local deformations --- bending test --- load-bearing capacity --- FRP --- concrete --- damage --- synergy --- strengthening --- finite element analysis --- composite material --- tribology --- vibrations --- resonance zone --- aluminum alloys --- composite materials --- epoxy resins --- power cables --- transmission lines --- CFRP --- NSM --- bond behavior --- structural behavior --- material characterization --- numerical modeling --- reinforced concrete --- steel fiber-reinforced concrete (SFRC) --- tension softening --- tension stiffening --- finite element (FE) analysis --- smeared crack model --- constitutive analysis --- residual stresses --- flexural behavior --- numerical analysis --- cyclic tests --- direct tension tests --- residual stiffness --- shear --- flexure --- shape memory alloys --- thermal environment --- composite laminates --- sound radiation --- 3D warp interlock fabric --- warp yarn interchange ratio --- mechanical test --- mechanical characterization --- fiber-reinforced composite --- soft body armor --- para-aramid fiber --- metal matrix composites --- SiC --- AZ91 --- magnesium alloy --- Cu-Cr system --- mechanical alloying --- solid solubility extension --- structural evolution --- thermodynamic --- n/a
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Wide bandgap (WBG) semiconductors are becoming a key enabling technology for several strategic fields, including power electronics, illumination, and sensors. This reprint collects the 23 papers covering the full spectrum of the above applications and providing contributions from the on-going research at different levels, from materials to devices and from circuits to systems.
Technology: general issues --- History of engineering & technology --- Energy industries & utilities --- energy storage system --- power conditioning system --- silicon carbide --- vanadium redox flow batteries --- AlGaN/GaN --- SiC --- high electron mobility transistor --- Schottky barrier diode --- breakdown field --- noise --- charge traps --- radio frequency --- wide-bandgap (WBG) --- gallium nitride (GaN) --- silicon carbide (SiC) --- high electron mobility transistor (HEMT) --- metal-oxide-semiconductor field effect transistor (MOSFET) --- driving technology --- nickel oxide --- annealing temperature --- crystallite size --- optical band gap --- electrochromic device --- indium oxide thin film --- solution method --- plasma surface treatment --- bias stability --- aluminum nitride --- Schottky barrier diodes --- radio frequency sputtering --- X-ray diffraction --- X-ray photoelectron spectroscopy --- piezoelectric micromachined ultrasonic transducers --- ranging --- time of flight (TOF) --- time to digital converter circuit (TDC) --- AlGaN/GaN heterojunction --- p-GaN gate --- unidirectional operation --- rectifying electrode --- first-principles --- density functional theory --- pure β-Ga2O3 --- Sr-doped β-Ga2O3 --- p-type doping --- band structure --- density of states --- optical absorption --- AlN buffer layer --- NH3 growth interruption --- strain relaxation --- GaN-based LED --- low defect density --- gate bias modulation --- palladium catalyst --- gallium nitride --- nitrogen dioxide gas sensor --- laser micromachining --- sapphire --- AlGaN/GaN heterostructures --- high-electron mobility devices --- p-GaN gate HEMT --- normally off --- low-resistance SiC substrate --- temperature --- high electron-mobility transistor (HEMT) --- equivalent-circuit modeling --- microwave frequency --- scattering-parameter measurements --- GaN --- MIS-HEMTs --- fabrication --- threshold voltage stability --- supercritical technology --- GaN power HEMTs --- breakdown voltage --- current collapse --- compensation ratio --- auto-compensation --- carbon doping --- HVPE --- AlN --- high-temperature --- buffer layer --- nitridation --- high-electron mobility transistor --- heterogeneous integration --- SOI --- QST --- crystal growth --- cubic and hexagonal structure --- blue and yellow luminescence --- electron lifetime --- wafer dicing --- stealth dicing --- laser thermal separation --- dry processing --- laser processing --- wide bandgap semiconductor --- photovoltaic module --- digital signal processor --- synchronous buck converter --- polar --- semi-polar --- non-polar --- magnetron sputtering --- HTA --- GaN-HEMT mesa structures --- 2DEG --- X-ray sensor --- X-ray imaging --- n/a
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