Currently, most existing methods using hyperspectral image to assist seed identification only consider the spectral information but ignore spatial resulting in unsatisfactory classification results. To cope with this issue, we propose a spatial, spectral, and texture-aware attention network identify corn varieties, called SSTNet. Specifically, first employ 3D convolution extract inter-spectral features. Subsequently, utilize 2D texture Meanwhile, embed an mechanism into module further refine...

With the rapid urbanization in China, directly buried municipal pipelines have been gradually replaced by urban utility tunnels due to a serious shortage of underground spaces and weak disaster prevention traditional pipelines. The normally contain electricity pipelines, natural gas heat sewer etc. If pipeline leaks, fire explosion might occur lead consequences. In this study, characteristics compartment tunnel are investigated based on FLACS (Flame Acceleration Simulator) simulations....

Abstract With the continuous development of manned space technology, higher requirements have been proposed for solid rocket motors. The ignition process motors affects reliability, stability and safety their operation. powder, cover opening pressure grain length‐diameter ratio are main factors affecting process. Therefore, influence different on is studied with numerical simulations. Based finite volume method, a motor modelled experimentally verified. Then, temperature distribution...

Lycopene is an important natural red pigment with strong singlet oxygen and peroxide free radical quenching ability. Ethanol directly destroys the epithelial cells of gastric mucosa, causing oxidative damage inflammation. To evaluate effect lycopene on ethanol induced injury, 112 adult male Kunming mice were randomly divided into normal control, injury omeprazole (20 mg/kg) positive experimental groups (at doses 10, 50, 100, 150 mg/kg body weight) in this study. The general pathological...

A distributed reinforcement learning (RL) based resource management framework is proposed for a mobile edge computing (MEC) system with both latency-sensitive and latency-insensitive services. We investigate joint optimization of radio resources to achieve efficient on-demand matches multi-dimensional diverse requirements users. multi-objective integer programming problem formulated by two subproblems, i.e., access point (AP) selection subcarrier allocation, which can be solved jointly our...

An optimal resource allocation scheme for orthogonal frequency division multiplexing (OFDM) based multiuser two-way full duplex (FD) relaying is discussed in this paper. Compared with traditional half (HD) relaying, FD mode can double data rate under perfect interference cancellation, which, however not be achieved realistic conditions. Our goal to maximize the throughput of whole system by allocating available power and subcarriers residual self-interference. We formulate a nonlinear...

An efficient two-step method to allocate power for orthogonal frequency division multiplexing-based full-duplex (FD) two-way communication links is proposed in this letter. We try maximize sum data rate of the link by allocating available over each subcarrier at both FD transceivers with imperfect self-interference cancellation. This sum-rate optimization problem formulated under total constraint. In order solve problem, we first consider a one-subcarrier and derive closed-form solution...

To improve the control accuracy of piezoelectric ceramic micro-positioning, because hysteresis for ceramic, modified Prandtl-Ishlinskii (P-I) model is used and Particle Swarm Optimization algorithm parameter identification. Compared to classical P-I model, biggest forecasting errors 0.4230 μ m, reducing by 46.67%. According principle inverse system control, feedforward built, so that actual displacement show a linear relationship with expected nonlinearity eliminated. Meanwhile, in order...

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Underwater images currently suffer from color tone bias, reduced contrast, and blurring, which significantly hinder their use in advanced visual tasks. To address these quality issues, we present an underwater image restoration method guided by a physics model, integrating generative adversarial network Unified Transformer frameworks. The is divided into three parts: physical model parameter estimation (Par-subnet), encoder–decoder, discriminators. Initially, the used to compute parameters...

We previously determined that the cyclase inhibitor tripropylamine (TPA) significantly enhances lycopene accumulation in Blakeslea trispora . To elucidate mechanism of TPA-enhanced accumulation, untargeted metabolome B. treated with TPA was analyzed by UHPLC-Q-TOF/MS. Forty-two differential metabolites were identified, which 15 meeting following parameters screened: variable importance for projection > 1, P < 0.05, and fold change 1.5. The down-regulated mainly cyclic...

In view of the disadvantages low-level automation, low efficiency and high cost in traditional mechanical processing industry, loading unloading manipulator is designed for φ50mm shaft parts. The whole structure design completed. A kind end effector which used to clamp parts designed, clamping force opening-closing velocity are calculated. As main components, sun gear analyzed by finite element method. With compact structure, transmission convenient maintenance, this has a broad market prospect.

In this paper, we aim to determine the multi-hop route between a device-to-device (D2D) source-destination pair which meets quality-of-service (QoS) of services. We model QoS routing problem in D2D as Markov decision process (MDP) and proposes distributed multi-agent reinforcement learning algorithm. consider requirements terms bandwidth, delay, packet loss rate, allocate path according link information averaged over time dynamic network environments. By decomposing Q-function into multiple...

Aluminum is an important additive in solid propellants used to improve energy efficiency, but agglomeration of aluminum particles can reduce the specific impulse engine, increase two-phase flow losses and cause ablation adiabatic layer. Therefore, it understand mechanism formation, mode movement particle size characteristics agglomerates study inhibition agglomeration. In this paper, a three-dimensional numerical simulation near burning surface was conducted using discrete unit method based...