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Recent advancements in mechanical engineering are an essential topic for discussion. The topics relating to mechanical engineering include the following: measurements of signals of shafts, springs, belts, bearings, gears, rotors, machine elements, vibration analysis, acoustic analysis, fault diagnosis, construction, analysis of machine operation, analysis of smart-material systems, integrated systems, stresses, analysis of deformations, analysis of mechanical properties, signal processing of mechanical systems, and rotor dynamics. Mechanical engineering deals with solid and fluid mechanics, rotation, movements, materials, and thermodynamics. This book, with 15 published articles, presents the topic “Symmetry in Mechanical Engineering”. The presented topic is interesting. It is categorized into eight different sections: Deformation; Stresses; Mechanical properties; Tribology; Thermodynamic; Measurement; Fault diagnosis; Machine. The development of techniques and methods related to mechanical engineering is growing every month. The described articles have made a contribution to mechanical engineering. The proposed research can find applications in factories, oil refineries, and mines. It is essential to develop new improved methods, techniques, and devices related to mechanical engineering.

History of engineering & technology --- traveling waves --- vibration stability --- self-excited vibration --- thin spur gear --- variational mode decomposition --- signal analysis --- time-frequency analysis --- center frequency method of double thresholds --- Hilbert transform --- finite-time control --- terminal sliding mode --- chattering --- neural network --- thin-walled structures --- higher-order deformation modes --- identification --- doubly symmetric cross-sections --- shell-like deformation --- dual mass flywheel --- absolute sensitivity --- relative sensitivity --- torsional vibration --- spring --- Dempster’s rule --- evidence distance --- pattern recognition --- maritime surveillance --- customer needs --- bad parameters --- core problems --- design process --- conceptual design --- time-varying P-type IL method --- MFA control --- imprecise probability --- active control --- piezoelectric cantilever plate --- image processing --- particle --- distribution --- rolling bearings --- Fault diagnosis --- second-order tristable stochastic resonance --- seeker optimization algorithm --- output signal-to-noise ratio --- global optimization --- meta-heuristic --- butterfly optimization algorithm --- cross-entropy method --- engineering design problems --- grinding --- rheology --- breakage parameters --- relative viscosity --- tool wear state --- CNN --- BiLSTM --- attention mechanism --- signal features --- vibrations --- symmetries --- two-engine vehicle --- rear clutch --- front clutch --- vibration modes --- granulation --- on-line monitoring --- fertilizers --- parallel robot --- minimally invasive procedures --- algebraic modeling --- Study parameters --- fractional damping --- vibration --- dynamic behaviour --- hybrid mechanism --- helicopter --- abrasive belt grinding --- predictive model --- regression --- material removal --- electric vehicles --- PMSM --- auxiliary slot --- response surface methodology --- n/a --- Dempster's rule

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This Special Issue, entitled “Non-Destructive Testing in Civil Engineering”, aims to present to interested researchers and engineers the latest achievements in the field of new research methods, as well as the original results of scientific research carried out with their use—not only in laboratory conditions but also in selected case studies. The articles published in this Special Issue are theoretical–experimental and experimental, and also show the practical nature of the research. They are grouped by topic, and the main content of each article is briefly discussed for your convenience. These articles extend the knowledge in the field of non-destructive testing in civil engineering with regard to new and improved non-destructive testing (NDT) methods, their complementary application, and also the analysis of their results—including the use of sophisticated mathematical algorithms and artificial intelligence, as well as the diagnostics of materials, components, structures, entire buildings, and interesting case studies.

conveyor belt --- climatic factors --- thermal shocks --- mechanical properties --- applied geophysics --- urban geophysics --- Eleftheria Square --- ERT --- probability-based ERT inversion (PERTI) method --- GPR --- EMI --- impact-echo --- tooth gear impactor --- contact duration --- delamination --- rapid scanning --- non-destructive testing --- concrete slab --- building defects --- building diagnosis --- building envelope --- building inspection system --- urgency of repair --- historic buildings --- brick walls --- nondestructive testing --- artificial neural networks --- Nearly Zero Energy Buildings (NZEB) --- passive house (PH) --- heat flux meter (HFM) --- quantitative infrared thermography (QIRT) --- building thermal performance --- U-value --- Mediterranean climate --- electrical resistivity --- electrical impedance --- concrete --- mortar --- measurement accuracy --- ultrasonic elastography --- underground detection --- soil inspection --- underwater acoustics --- non-destructive test --- monitoring --- housing --- buildings --- façade --- thermal transmittance --- HFM method --- infrared thermography --- solar loading thermography --- lock-in thermography --- passive thermography --- thermal thickness --- thermal effusivity --- infrastructure --- NDT --- onsite X-ray bridge inspection --- 950 keV/3.95 MeV X-ray sources --- PC bridge --- unfilled grout --- quantitative evaluation of stage of unfilled grout --- step-heating thermography --- active thermography --- linear effusivity fit --- ground-penetrating radar --- signal features --- material moisture --- classification --- machine learning --- moisture measurements --- building floors --- civil engineering --- crack measurement --- image processing --- high resolution --- working distance --- crack width --- visual inspection --- structure state assessment --- ground sample distance (GSD) --- sonic resonant method --- impulse excitation technique --- resonant frequency --- steel fiber reinforced concrete --- fiber orientation --- micro-computed tomography --- ultrasound --- spectral induced polarization --- small force --- load --- instrumental signal --- two-point bending test --- strain gauge --- calibration equation --- n/a --- façade

Choose an application

• Reference Manager
• EndNote
• RefWorks (Direct export to RefWorks)

This Special Issue, entitled “Non-Destructive Testing in Civil Engineering”, aims to present to interested researchers and engineers the latest achievements in the field of new research methods, as well as the original results of scientific research carried out with their use—not only in laboratory conditions but also in selected case studies. The articles published in this Special Issue are theoretical–experimental and experimental, and also show the practical nature of the research. They are grouped by topic, and the main content of each article is briefly discussed for your convenience. These articles extend the knowledge in the field of non-destructive testing in civil engineering with regard to new and improved non-destructive testing (NDT) methods, their complementary application, and also the analysis of their results—including the use of sophisticated mathematical algorithms and artificial intelligence, as well as the diagnostics of materials, components, structures, entire buildings, and interesting case studies.

Technology: general issues --- History of engineering & technology --- conveyor belt --- climatic factors --- thermal shocks --- mechanical properties --- applied geophysics --- urban geophysics --- Eleftheria Square --- ERT --- probability-based ERT inversion (PERTI) method --- GPR --- EMI --- impact-echo --- tooth gear impactor --- contact duration --- delamination --- rapid scanning --- non-destructive testing --- concrete slab --- building defects --- building diagnosis --- building envelope --- building inspection system --- urgency of repair --- historic buildings --- brick walls --- nondestructive testing --- artificial neural networks --- Nearly Zero Energy Buildings (NZEB) --- passive house (PH) --- heat flux meter (HFM) --- quantitative infrared thermography (QIRT) --- building thermal performance --- U-value --- Mediterranean climate --- electrical resistivity --- electrical impedance --- concrete --- mortar --- measurement accuracy --- ultrasonic elastography --- underground detection --- soil inspection --- underwater acoustics --- non-destructive test --- monitoring --- housing --- buildings --- façade --- thermal transmittance --- HFM method --- infrared thermography --- solar loading thermography --- lock-in thermography --- passive thermography --- thermal thickness --- thermal effusivity --- infrastructure --- NDT --- onsite X-ray bridge inspection --- 950 keV/3.95 MeV X-ray sources --- PC bridge --- unfilled grout --- quantitative evaluation of stage of unfilled grout --- step-heating thermography --- active thermography --- linear effusivity fit --- ground-penetrating radar --- signal features --- material moisture --- classification --- machine learning --- moisture measurements --- building floors --- civil engineering --- crack measurement --- image processing --- high resolution --- working distance --- crack width --- visual inspection --- structure state assessment --- ground sample distance (GSD) --- sonic resonant method --- impulse excitation technique --- resonant frequency --- steel fiber reinforced concrete --- fiber orientation --- micro-computed tomography --- ultrasound --- spectral induced polarization --- small force --- load --- instrumental signal --- two-point bending test --- strain gauge --- calibration equation