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Dear colleagues, Geological energy has a long history in China. As early as 500 BC, China began to use coal as fuel. In the middle of the 19th century, China began to develop oil resources. After the foundation of new China, with the discovery of the Daqing oilfield, China's oil industry entered an era of great development. During the 21st century, with the development of drilling technology, the development of unconventional energy such as shale gas and shale oil has entered a new era. In recent years, the development of flammable ice has set off a wave of clean energy. With the carbon reduction plan proposed by the Chinese government, clean geo-energy has been granted unparalleled development space in the future. China's geo-energy development technology used to lag behind that of major developed countries for a long time, but after years of development, it has become the world's leading edge in some fields. Therefore, we specially set up this collection to collect China's advanced geo-energy exploitation technology and development trends, whilst providing some new directions for thinking about geo-energy development in China and even the world. This collection seeks to contribute to such topics through enhanced scientific and multidisciplinary knowledge.

Research & information: general --- airflow reversal --- gas outburst --- mine ventilation system --- orthogonal experiment --- numerical simulation --- deep chamber --- asymmetric failure --- mechanical analysis --- control measures --- Yinggehai --- overpressure --- hydraulic fracture --- mudstone --- fluid pressure --- red sandstone --- pre-existing cracks --- creep behavior --- temperature --- long-term permeability --- partial saturation --- patchy saturation --- squirt flow --- P-wave velocity dispersion and attenuation --- anelasticity --- ultrasonic measurements --- heavy oil reservoirs --- cyclic steam stimulation --- conformance control --- extreme gradient boost (XGBoost) trees --- prediction model --- Dongsha Waters in the northern South China Sea margin --- velocity inversion --- mud volcano --- magma intrusion --- Mesozoic hydrocarbon --- tubing --- modal analysis --- fluid-structure interaction --- inlet pressure --- pipeline --- water hammer --- gas-liquid two-phase flow --- pressure --- velocity --- lattice Boltzmann method --- discrete element method --- sand production --- force chain network analysis --- seismic sedimentology --- sedimentary facies evolution --- peat accumulation regularity --- frequency–division amplitude fusion --- thin sand bodies --- stable crack propagation --- crack strain --- stress–strain curve --- model --- wing crack --- outburst coal --- primary coal --- structural parameters --- infrared spectrum --- XRD --- oil shale --- in situ conversion project --- biomarker --- pyrolysis process --- organic geochemistry

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As the century begins, natural resources are under increasing pressure, threatening public health and development. As a result, the balance between man and nature has been disrupted, with climatic changes whose effects are starting to be irreversible. Due to the relationship between the quality of the indoor built environment and its energy demand, thermal comfort issues are still relevant in the disciplinary debate. This is also because the indoor environment has a potential impact on occupants' health and productivity, affecting their physical and psychological conditions. To achieve a sustainable compromise in terms of comfort and energy requirements, several challenging questions must be answered with regard to design, technical, engineering, psychological, and physiological issues and, finally, potential interactions with other IEQ issues that require a holistic way to conceive the building envelope design. This Special Issue collected original research and review articles on innovative designs, systems, and/or control domains that can enhance thermal comfort, work productivity, and wellbeing in a built environment, along with works considering the integration of human factors in buildings’ energy performance.

smart broiler chamber --- ventilation system --- wind velocity --- age of air --- computational fluid dynamics --- simulation analysis --- user awareness --- energy consumption --- individual metering --- feedback strategies --- N-ZEB --- IoT --- Trombe wall --- thermal comfort --- passive heating systems --- heat accumulation --- thermal comfort models --- thermal comfort assessment --- Fanger’s models --- moderate environments --- sport facilities --- desert cooler --- evaporative cooling --- indoor air quality --- liquid desiccant --- effectiveness model --- moisture removal --- PMV --- comfort indices --- software --- app --- building simulation --- health and comfort --- evaluation indicators --- work environments --- indoor environmental quality --- indoor comfort --- human health --- clothing thermal insulation --- thermoregulation model --- Tanabe model --- infrared camera --- indoor air quality (IAQ) --- hybrid ventilation --- demand controlled ventilation (DCV) --- internet of things (IoT) --- soft-sensor --- convolution neural networks --- draught --- cooling period --- open office --- thermal sensation --- biological structure and composition --- tissue temperature --- bioheat model --- MRI analysis --- sensitivity analysis

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Dear colleagues, Geological energy has a long history in China. As early as 500 BC, China began to use coal as fuel. In the middle of the 19th century, China began to develop oil resources. After the foundation of new China, with the discovery of the Daqing oilfield, China's oil industry entered an era of great development. During the 21st century, with the development of drilling technology, the development of unconventional energy such as shale gas and shale oil has entered a new era. In recent years, the development of flammable ice has set off a wave of clean energy. With the carbon reduction plan proposed by the Chinese government, clean geo-energy has been granted unparalleled development space in the future. China's geo-energy development technology used to lag behind that of major developed countries for a long time, but after years of development, it has become the world's leading edge in some fields. Therefore, we specially set up this collection to collect China's advanced geo-energy exploitation technology and development trends, whilst providing some new directions for thinking about geo-energy development in China and even the world. This collection seeks to contribute to such topics through enhanced scientific and multidisciplinary knowledge.

Research & information: general --- airflow reversal --- gas outburst --- mine ventilation system --- orthogonal experiment --- numerical simulation --- deep chamber --- asymmetric failure --- mechanical analysis --- control measures --- Yinggehai --- overpressure --- hydraulic fracture --- mudstone --- fluid pressure --- red sandstone --- pre-existing cracks --- creep behavior --- temperature --- long-term permeability --- partial saturation --- patchy saturation --- squirt flow --- P-wave velocity dispersion and attenuation --- anelasticity --- ultrasonic measurements --- heavy oil reservoirs --- cyclic steam stimulation --- conformance control --- extreme gradient boost (XGBoost) trees --- prediction model --- Dongsha Waters in the northern South China Sea margin --- velocity inversion --- mud volcano --- magma intrusion --- Mesozoic hydrocarbon --- tubing --- modal analysis --- fluid-structure interaction --- inlet pressure --- pipeline --- water hammer --- gas-liquid two-phase flow --- pressure --- velocity --- lattice Boltzmann method --- discrete element method --- sand production --- force chain network analysis --- seismic sedimentology --- sedimentary facies evolution --- peat accumulation regularity --- frequency–division amplitude fusion --- thin sand bodies --- stable crack propagation --- crack strain --- stress–strain curve --- model --- wing crack --- outburst coal --- primary coal --- structural parameters --- infrared spectrum --- XRD --- oil shale --- in situ conversion project --- biomarker --- pyrolysis process --- organic geochemistry --- airflow reversal --- gas outburst --- mine ventilation system --- orthogonal experiment --- numerical simulation --- deep chamber --- asymmetric failure --- mechanical analysis --- control measures --- Yinggehai --- overpressure --- hydraulic fracture --- mudstone --- fluid pressure --- red sandstone --- pre-existing cracks --- creep behavior --- temperature --- long-term permeability --- partial saturation --- patchy saturation --- squirt flow --- P-wave velocity dispersion and attenuation --- anelasticity --- ultrasonic measurements --- heavy oil reservoirs --- cyclic steam stimulation --- conformance control --- extreme gradient boost (XGBoost) trees --- prediction model --- Dongsha Waters in the northern South China Sea margin --- velocity inversion --- mud volcano --- magma intrusion --- Mesozoic hydrocarbon --- tubing --- modal analysis --- fluid-structure interaction --- inlet pressure --- pipeline --- water hammer --- gas-liquid two-phase flow --- pressure --- velocity --- lattice Boltzmann method --- discrete element method --- sand production --- force chain network analysis --- seismic sedimentology --- sedimentary facies evolution --- peat accumulation regularity --- frequency–division amplitude fusion --- thin sand bodies --- stable crack propagation --- crack strain --- stress–strain curve --- model --- wing crack --- outburst coal --- primary coal --- structural parameters --- infrared spectrum --- XRD --- oil shale --- in situ conversion project --- biomarker --- pyrolysis process --- organic geochemistry

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Modern engineering practice requires advanced numerical modeling because, among other things, it reduces the costs associated with prototyping or predicting the occurrence of potentially dangerous situations during operation in certain defined conditions. Thus far, different methods have been used to implement the real structure into the numerical version. The most popular uses have been variations of the finite element method (FEM). The aim of this Special Issue has been to familiarize the reader with the latest applications of the FEM for the modeling and analysis of diverse mechanical problems. Authors are encouraged to provide a concise description of the specific application or a potential application of the Special Issue.

Technology: general issues --- numerical modeling --- finite volumne method --- underground coal mine --- endogenous fires --- spontaneous combustion --- longwall --- ventilation system --- shot peening --- quantitative description of peening coverage --- high peening coverage --- Almen intensity --- residual compressive stress --- hybrid composite --- damage --- aramid fiber --- carbon fiber --- finite element method --- delamination --- cut bar method --- thermal conductivity --- steady-state --- heat lakes --- finite element modeling --- aluminum conductor steel-reinforced cable --- bend deformation --- stress --- friction coefficient --- wind loads --- fatigue fracture --- FEM --- SFEM --- active periodic structures --- smart materials --- PCHE --- misalignment --- channel --- utilization factor --- torsion springs --- FEA --- NURBS --- applied load --- local behaviors --- drill pipe joint --- design --- sealing properties --- experiment --- bias tire --- textile cord --- shrinkage --- rubber --- inflation analysis --- nondestructive inspection --- crack detection --- low loading --- surface profile --- turbine blade --- finite element analysis --- swingarm --- single-sided --- Finite Elements Analysis (FEA) --- three-wheel motorcycle --- topology optimization --- collision modeling --- mechanical parameters --- contact detection --- web deformation --- strain deviation --- design of experiment --- roll-to-roll process --- solid mechanics --- finite elements --- hp-adaptivity --- numerical locking --- detection --- assessment --- resolution --- equilibrated residual method --- sensitivity analysis --- p-enrichment --- bell crank --- natural frequency --- reverse engineering --- vibrometer --- Abaqus --- numerical simulation --- biomechanics --- head injury --- safety --- injury criteria --- disability --- driver --- HALE UAV --- generative modelling --- thin-layer composite structure --- electro-mechanical systems --- piezoelectrics --- hierarchical models --- first-order models --- transition models --- hpq/hp-approximations --- adaptivity --- stress gradients --- convergence --- damage detection --- numerical modeling --- finite volumne method --- underground coal mine --- endogenous fires --- spontaneous combustion --- longwall --- ventilation system --- shot peening --- quantitative description of peening coverage --- high peening coverage --- Almen intensity --- residual compressive stress --- hybrid composite --- damage --- aramid fiber --- carbon fiber --- finite element method --- delamination --- cut bar method --- thermal conductivity --- steady-state --- heat lakes --- finite element modeling --- aluminum conductor steel-reinforced cable --- bend deformation --- stress --- friction coefficient --- wind loads --- fatigue fracture --- FEM --- SFEM --- active periodic structures --- smart materials --- PCHE --- misalignment --- channel --- utilization factor --- torsion springs --- FEA --- NURBS --- applied load --- local behaviors --- drill pipe joint --- design --- sealing properties --- experiment --- bias tire --- textile cord --- shrinkage --- rubber --- inflation analysis --- nondestructive inspection --- crack detection --- low loading --- surface profile --- turbine blade --- finite element analysis --- swingarm --- single-sided --- Finite Elements Analysis (FEA) --- three-wheel motorcycle --- topology optimization --- collision modeling --- mechanical parameters --- contact detection --- web deformation --- strain deviation --- design of experiment --- roll-to-roll process --- solid mechanics --- finite elements --- hp-adaptivity --- numerical locking --- detection --- assessment --- resolution --- equilibrated residual method --- sensitivity analysis --- p-enrichment --- bell crank --- natural frequency --- reverse engineering --- vibrometer --- Abaqus --- numerical simulation --- biomechanics --- head injury --- safety --- injury criteria --- disability --- driver --- HALE UAV --- generative modelling --- thin-layer composite structure --- electro-mechanical systems --- piezoelectrics --- hierarchical models --- first-order models --- transition models --- hpq/hp-approximations --- adaptivity --- stress gradients --- convergence --- damage detection

Choose an application

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

Modern engineering practice requires advanced numerical modeling because, among other things, it reduces the costs associated with prototyping or predicting the occurrence of potentially dangerous situations during operation in certain defined conditions. Thus far, different methods have been used to implement the real structure into the numerical version. The most popular uses have been variations of the finite element method (FEM). The aim of this Special Issue has been to familiarize the reader with the latest applications of the FEM for the modeling and analysis of diverse mechanical problems. Authors are encouraged to provide a concise description of the specific application or a potential application of the Special Issue.

numerical modeling --- finite volumne method --- underground coal mine --- endogenous fires --- spontaneous combustion --- longwall --- ventilation system --- shot peening --- quantitative description of peening coverage --- high peening coverage --- Almen intensity --- residual compressive stress --- hybrid composite --- damage --- aramid fiber --- carbon fiber --- finite element method --- delamination --- cut bar method --- thermal conductivity --- steady-state --- heat lakes --- finite element modeling --- aluminum conductor steel-reinforced cable --- bend deformation --- stress --- friction coefficient --- wind loads --- fatigue fracture --- FEM --- SFEM --- active periodic structures --- smart materials --- PCHE --- misalignment --- channel --- utilization factor --- torsion springs --- FEA --- NURBS --- applied load --- local behaviors --- drill pipe joint --- design --- sealing properties --- experiment --- bias tire --- textile cord --- shrinkage --- rubber --- inflation analysis --- nondestructive inspection --- crack detection --- low loading --- surface profile --- turbine blade --- finite element analysis --- swingarm --- single-sided --- Finite Elements Analysis (FEA) --- three-wheel motorcycle --- topology optimization --- collision modeling --- mechanical parameters --- contact detection --- web deformation --- strain deviation --- design of experiment --- roll-to-roll process --- solid mechanics --- finite elements --- hp-adaptivity --- numerical locking --- detection --- assessment --- resolution --- equilibrated residual method --- sensitivity analysis --- p-enrichment --- bell crank --- natural frequency --- reverse engineering --- vibrometer --- Abaqus --- numerical simulation --- biomechanics --- head injury --- safety --- injury criteria --- disability --- driver --- HALE UAV --- generative modelling --- thin-layer composite structure --- electro-mechanical systems --- piezoelectrics --- hierarchical models --- first-order models --- transition models --- hpq/hp-approximations --- adaptivity --- stress gradients --- convergence --- damage detection