With the in-depth application of Internet Things, many emerging technologies are changing global industry landscape on an unprecedented scale. At same time, they also provide opportunity for development intelligent management to break through bottleneck. The proposal and evolution concept makes technology more advanced. Therefore, introduction Things into has very important research significance value. First, conduct origin current situation at home abroad understand relevant theories...

With the proposed goal of “Carbon Neutrality”, photovoltaic energy is gradually gaining leading role in transformation. At present, crystalline silicon cells are still mainstream technology industry, but due to similarity defect characteristics and small scale defects, automatic detection (PV) by electroluminescence (EL) imaging a challenging task. In order better meet growing demand for high-quality cell products intelligent manufacturing use, ensure safe efficient operation power stations,...

Abstract This paper presents a step-stress accelerated life test for two stress variables to obtain optimal hold times under Type-I hybrid censoring scheme. An exponentially distributed and cumulative exposure model are assumed. The maximum-likelihood estimates given, from which the asymptotic variance Fisher information matrix obtained. plan is determined each combination of levels by minimizing reliability estimate at typical operating condition. Finally, simulation results discussed...

Solid propellant fires, characterized by uncontrolled combustion behaviors, are a common occurrence in industries that utilize solid propellants and can lead to significant consequences. However, there has been lack of comprehensive studies on modeling simulating the flame characteristics NEPE fires. This research aims investigate behaviors large at different altitudes using computational fluid dynamics (CFD). The flame's shape temperature were examined based experimental data under...

Abstract BACKGROUND Pervaporation performance in a PDMS membrane bioreactor for ethanol recovery from model solution and fermentation broth was researched. Downstream of the permeate vapor completely condensed by running water air at room temperature. RESULTS Part under vacuum conditions temperature condenser C1, with concentration 47.2 g L −1 obtained. The pump pervaporation used to compress non‐condensed 461.3 into C2, where could be easily atmospheric During experimental total flux...

Abstract Air conditioning systems play a vital role in maintaining comfortable indoor environments, particularly hot and humid climates. However, these consume significant amount of energy, making load demand forecasting an important aspect energy management. In this study, the authors propose novel approach for air using hybrid deep belief network (HDBN) improved snake optimization algorithm (ISOA). The HDBN is machine learning technique that combines probabilistic graphical models to...

Abstract With the advent of Internet things era, power equipment is gradually connected to network, and its intelligent fault detection function provides greater help for industry. The purpose this study design information acquisition system things. This research based on collection mainly studies method technology. Equipment data are generally time series data. In analysis failure, before after analyzed. abnormal state associated with fault. Therefore, by analyzing characteristics fault, a...

The folding kinetics of Rd-apocytochrome b562 is two-state, but native-state hydrogen exchange experiments show that there are discrete partially unfolded (PUF) structures in equilibrium with the native state. These PUF called hidden intermediates because they not detected kinetic and exist after rate-limiting step. Structures mimics resolved by NMR. Based upon their relative stability structural features, mechanism was proposed to follow a specific pathway (unfolded → transition state PUF1...

Ethanol production could be enhanced with ethanol removal in situ from the broth, during experiments of fermentation coupled pervaporation by mechanical vapor compression. The yeast cell continuously grow for long time density 38 g/L obtained. byproducts accumulation broth led to culture deterioration and became main inhibitor against growth. total flux polydimethylsiloxane (PDMS) membrane was range 350 g/m2/h 600 g/m2/h. At downstream membrane, part permeate under vacuum condition before...

Maintaining proper hydration is essential for athletes to sustain optimal performance and preserve their physical health. Existing studies have confirmed that urine color one of the effective indicators subjective evaluation athletes’ through chart. However, use charts evaluate easily affected by test environment, container feeling. At present, there are few monitoring instruments based on quantitative analysis color. In recent years, L*a*b* model has been widely used in objective The L*...

Solid propellant fires, characterized by uncontrolled combustion behaviors, are a common occurrence in industries that utilize solid propellants and can lead to significant consequences. However, there has been lack of comprehensive studies on modeling simulating the flame characteristics NEPE fires. This research aims investigate behaviors large at different altitudes using computational fluid dynamics (CFD). The flame's shape temperature were examined based experimental data under...

Inherent structure (IS) and geometry-based clustering methods are commonly used for analyzing molecular dynamics trajectories. ISs obtained by minimizing the sampled conformations into local minima on potential/effective energy surface. The that minimized same basin belong to one cluster. We investigate influence of applications these two trajectory decomposition our understanding thermodynamics kinetics alanine tetrapeptide. find at microcluster level, IS approach root-mean-square deviation...

In this work, the tensile mechanical properties of 5A06 aluminum alloy are tested in temperature range 20°C ~ 500°C on an MTS 810 material testing machine. The curves stress vs. strain, Young's modulus temperature, yield strength and obtained. Results shows that elastic modulus, decrease with increasing .Based experiment results, functions versus represented by polynomial. simplified constitutive model JC finally is established under high considering thermal softening.

In this paper, a new type of ring-shaped interdigital electrode is proposed to improve the accuracy and repeatability quartz crystal microbalance. The influence different types single finger, dot double-finger electrodes on mass sensitivity distribution as well optimal proportion finger gap width are obtained through multi-physical coupling simulation. results show that design criteria will not change with increase in number fingers. should obey decrease order from central edge be about...