To develop the in situ underground pyrolysis process of tar-rich coal more scientifically, effect temperature and pressure on distribution products should be clarified. This paper selected typical components five distillates light tar, phenol naphthalene washing anthracene tar as main reaction products. 32 secondary reactions were constructed. Based thermodynamic analysis strategy, variation Gibbs free energy equilibrium constant was investigated. The results showed that mainly affected...

In situ underground pyrolysis of tar-rich coal is significant for alleviating the scarcity oil and gas resources realizing green efficient development utilization in China. Tar-rich often subjected to high axial pressure, surrounding pore pressure environment. Consequently, laboratory simulation conditions are difficult meet actual needs. This paper conducts a thermodynamic study characteristics under an Typical functions coal, including standard enthalpy formation, formation Gibbs free...

Abstract Federated learning (FL) is a novel distributed machine paradigm that enables participants to collaboratively train centralized model with privacy preservation by eliminating the requirement of data sharing. In practice, FL often involves multiple and requires third party aggregate global information guide update target participant. Therefore, many methods do not work well due training test each participant may be sampled from same feature space underlying distribution. Meanwhile,...

<title>Abstract</title> Background The early prediction of pulmonary necrosis in children with severe pneumonia improves patient prognosis and prevents complications. aim this study was to establish a linear model for predicting necrotizing (NP) caused by <italic>Mycoplasma pneumoniae</italic> (MP) infection investigate the risk factors lung refractory (RMPP). Methods A total 536 RMPP were enrolled, including 95 NP 441 nonnecrotizing (NNP). built on 375 cases validated 161 cases, which...

Lipoxin A4 (LXA4) is a structurally and functionally distinct natural product called an eicosanoid, which displays immunomodulatory anti-inflammatory activity but rapidly metabolized to inactive catabolites in vivo. A previously described analogue of LXA4, methyl (5R,6R,7E,9E,11Z,13E,15S)-16-(4-fluorophenoxy)-5,6,15-trihydroxy-7,9,11,13-hexadecatetraenoate (2, ATLa), was shown have poor pharmacokinetic profile after both oral intravenous administration, as well sensitivity acid light. The...

Mycoplasma pneumoniae pneumonia (MPP) is a prevalent disease in community-acquired among children. However, addition to respiratory manifestations, it may also develop extra-pulmonary complications. Embolism one of the uncommon extra-respiratory manifestations prone severe sequelae and even death. This study aims analyze clinical features MPP with embolism children, explore associated risk factors patients.A retrospective case-control analysis was performed on 48 children admitted our...

Mycoplasma pneumoniae pneumonia is a common respiratory infection among children. However, the occurrence of thromboembolism with plastic bronchitis in association extremely rare. This case series presents five cases children who developed and bronchitis. The clinical presentation, diagnostic approach, management strategies are discussed. A retrospective analysis was conducted on medical records from pediatric hospital. Patient demographics, features, laboratory findings, imaging results,...

Plastic bronchitis (PB) constitutes a life-threatening pulmonary disorder, predominantly attributed to Mycoplasma pneumoniae (MP) infection. The pathogenic mechanisms involved remain largely unexplored, leading the absence of reliable approaches for early diagnosis and clear treatment. Thus, present investigation aimed develop an MP-induced mouse model PB, thereby enhancing our understanding this complex condition. In first stage, healthy BALB/c mice were utilized investigate optimal methods...

In this paper, an efficient numerical scheme and corresponding fast solver are proposed implemented for rapid high-accuracy calculation of the motion-induced eddy current testing (MIECT) forward problems. First, inspired by time-domain formulation MIECT problem, a DFT-based in frequency-domain was through DFT transient excitation magnetic field signals at conductor surface caused moving permanent magnet probe. Second, fast-forward simulator further improving existing Ar code single-frequency...

Abstract In this paper, we design and fabricate dual-tunable waveguides in a two-dimensional periodic plate with threaded holes. Dual tunability is realized by using rods held nuts as well assembly prestress of the nuts. A straight waveguide, bent wave splitter are designed changing distribution different circuits. The experimental numerical results show that frequencies guided waves can be tuned prestress. By increasing amount prestress, frequency range passing band shifted upward....

A micro-refrigeration experimental system driven by photovoltaic power generation was established, and a study of the cooling capacity, load power, efficiency changes over time under sunny cloudy weather conditions carried out. The results show that appendant battery makes run more stably, has no obvious effect on operation indoor refrigeration system. exergy analysis indicates loss compression process is largest, accounting for than 80% total in system; can reach about 28% both conditions.

Moisture in oil–paper insulation has a great influence on performance, and moisture distribution is always uneven. In this study, the of surface flashover channel position time under dc voltage different distributions were examined by statistical methods. The experimental results positions fit normal, lognormal, gamma, Weibull distributions, goodness was evaluated correlation coefficient Kolmogorov–Smirnov (K–S) testing. showed that best Normal distribution. A hypothesis test double sample...

To improve the uneven distribution of fractured rock blocks in Aktep Tunnel Xinjiang, key parameters existing blasting plan, such as inclination angle cutting hole and spacing between surrounding holes, were optimized analyzed through theoretical calculations using ANSYS/LSDYNA numerical simulation method; Four sets models for smooth constructed separately, contour chamber after was obtained simulation, based on which effect analyzed. The results showed that compared with effects when...

Federated learning (FL) is a novel distributed machine paradigm that enables participants to collaboratively train centralized model with privacy preservation by eliminating the requirement of data sharing. In practice, FL often involves multiple and requires third party aggregate global information guide update target participant. Therefore, many methods do not work well due training test each participant may be sampled from same feature space underlying distribution. Meanwhile, differences...

GPGPUs adopt SIMT execution model in which each logical thread a warp corresponds to SIMD lane while can still follow an independent control flow. When branch divergence appears and threads within take different paths, have execute path serially through masking, potentially decreases the utilization performance. We propose efficient compaction mechanism handle with novel register file structure. also develop new scheduling policy cooperating our mechanism. The simulation results show that...

With regards to the characteristics of inter-basin water transfer projects, a 3d visual simulation (Three-Dimensional Visual Simulation, 3DVS) method for project was proposed. A virtual reproduction entire and its topography is achieved. The supplement three-dimensional topographic data completed by Civil 3D combinedwith Google Earth. In this paper, digital model established using 3ds Max. Based on model, channel were realized .The Yuzhou section South-to-North Water Transfer Project taken...

Abstract The pullout resistance is a design consideration for suction caisson-supported offshore structures, such as platforms and wind turbines. An analytical method proposed in this paper to calculate the of single caisson foundation embedded clay. Comparisons with laboratory model tests were also made verify accuracy method. Parametric studies conducted investigate effects key factors on caisson. This study found force nonlinearly increases increase diameter squared but linearly...