It is one of the main goals of microbial ecology to understand factors that drive the succession of communities. Abiotic environmental factors affect the growth of populations and the interactions between them. Microbial communities are very sensitive and can easily respond to changes in abiotic env...

Aspect-based sentiment analysis (ABSA) is a fine-grained sentiment analysis task that aims to give the corresponding sentiment polarity for specific aspects that appear in review statements. Most existing aspect-based sentiment analysis methods relying on deep learning focus on mining the semantics ...

Because of its precise aircraft position, quick update interval, and broad surveillance coverage, automatic dependent surveillance-broadcast (ADS-B) is a rapidly developing aeronautical surveillance system that has been extensively utilized in civil aviation surveillance. Nevertheless, since ADS-B c...

For industrial cyber-physical system (ICPS) with false data injection (FDI) attacks and faults, the collaborative design of integrated security control and communication in the new type adaptive discrete event-triggered communication scheme (ADETCS) was studied. Firstly, the ADETCS was introduced to...

Currently, the majority of dehazing techniques that utilize deep learning focus on directly acquiring the mapping relationship between a foggy image and a non-fog image.Because of the lack of combination with the characteristics of fog images, there are problems such as inaccurate detection of fog i...

The electric load simulator of aircraft steering gear (ELSSG) is disturbed by redundant torque. To address this issue,a compound controller combining iterative learning control and robust integral control of sign of error (RISE) was proposed. The mathematical model of the load simulator was establis...

In order to solve the problems of difficult parallelization, long training time, and low equipment utilization in the traditional parallelization method of manually partitioning computing tasks of the neural network model, a task segmentation and parallel optimization method based on feature percept...

Sleep deprivation and circadian rhythm disorder are important factors affecting the fatigue of transportation staff. In order to advance the safety risk prevention threshold, it is now vital to identify staff fatigue concurrently with the advent of "face brushing" technology while on duty. This stud...

Relation extraction is an important task for natural language processing applications. Most of the existing relation extraction methods mainly predict the relation based on language sequence features or structure information of sentences, which fails to effectively reflect the internal structure and...

The impact of deck motion on the complete automatic landing success rate is taken into account during the landing procedure. Aiming at the asynchrony of the deck and the longitudinal height of the carrier-based aircraft caused by the delay in the response of the carrier-based aircraft, the deck moti...

The optimization design for structures with surface is challenging due to the mismatch between cellular unit cell configuration and the design domain shape. Thus, a topological optimization design method for conformal cellular structures on surfaces based on co-simulation is proposed. The parametric...

With the advent of the era of big data in power, power grid enterprises have accumulated a large number of multi-modal data in years of technical supervision work. The structured storage and fusion of multi-modal data are the keys to the effective organization and management of power systems. In ord...

The lateral stability of the quasi-biconical lifting reentry spacecraft is a strict constraint on the implementation of its ideal reentry strategy, which requires specialized analysis in the design stage. In this paper, for the nominal reentry process of the quasi-biconical lifting reentry spacecraf...

Based on the data source of bird strike information of airplanes in transportation category from civil aviation of China in recent ten years, the mixed Weibull function was used to fit the bird strike energy distribution, and a Levenberg-Marquardt (L-M) optimization algorithm was applied to obtain m...

The traditional keystroke level model (KLM) focuses on the operation analysis of the keyboard and mouse, which is well-suited for efficiently quantifying job completion time in straightforward software interfaces. However, a significant error occurs when the software interface of the command and con...

The prediction technology of hypersonic aero-heating is one of the key technologies for the development of high-speed vehicles. Creating an efficient method for predicting the hypersonic thermal conditions is highly important for designing thermal protection systems and optimizing aerodynamics. In o...

Traditional methods for analyzing the Kelvin-Helmholtz instability on the surface of droplets that dominate the formation mass of combustible mixtures are difficult to achieve effective predictions over a wide range of critical conditions for the actual operation of hybrid internal combustion engine...

To fully understand the impact of dual-frequency electromagnetic radiation pseudo-signal interference on radar and uncover the underlying mechanism behind this interference effect. Taking a Ku-band swept-frequency ranging radar as the test object, a dual-frequency continuous wave pseudo-signal inter...

Maxwell reluctance actuators overcome the problems of small strokes of traditional piezoelectric actuators and low thrust density and efficiency of voice coil motors and have great application potential in large-stroke and high-speed micro/nanoposition. In this paper, a large-stroke two-degree-of-fr...

An enhanced moth-flame optimization algorithm with multi-strategy integration (RGMFO) was proposed in order to address the issues that the moth-flame optimization algorithm was prone to falling into the local optimum and that its exploitation ability was insufficient while it was approaching the glo...

The dynamic objects will cause a large number of dynamic errors in the pose estimation of robots in dynamic scenarios. To address this issue, a 3D simultaneous localization and mapping (SLAM) algorithm for mobile robots was presented by using geometric constraints between feature points to eliminate...

Code division multiple access (CDMA) communication system is the main part of large-scale satellite constellation network. In the case of multiple access interference in multi-channel communication between satellites, the receiving link is modeled. This study elucidates the correlation between bit e...

According to the reported multi-level logic approximation optimization algorithm which can not balance the optimization effect and working speed well for largecircuits. It is proposed to use constant substitution in conjunction with and-inverter-graph (AIG) to optimize the logic at multiple levels f...

In view of the overlapped airline network of dual hub airports that do not belong to the same airport group, an optimization model of dual hub airline networks in a competition scenario was proposed by optimizing the airline network layout of the airports. Based on the airline network construction i...

The processing efficiency of the rotary ultrasonic single vibration mode is limited. Therefore, an elliptical vibration processing system with double-bending ultrasonic vibrations was designed using the ultrasonic vibration excitation source coupling method. The bending wave equation was derived, an...

Cavitation in axial plunger pumps is a main factor affecting its comprehensive performance. The damage in the surface of plunger cylinder is a common failure mode, but the cause is not clear. In view of this damage reason, a three-dimensional CFD model of the pump was established, and a visualizatio...

To optimize the microgravity level of the levitation experiment facility (LEF) inside China’s Space Station (CSS), the limited intra-vehicular travel distance and various uncertainties were considered, so as to achieve the optimal microgravity level under different time scales. An autonomous traject...

This study presents a reinforcement learning-based multi-agent dynamic communication resource allocation model that addresses the issue of communication resource allocation in multi-UAV area coverage tasks. We first generate the coverage route of each UAV in the mission area by the multi-agent spann...

Once the space tether-net captures the spinning space debris, a torque will be exerted on the connecting tether between the capture net and the satellite. However, the current tether-related dynamic model can't fully describe its twisting behavior. In order to address this issue, a quadratic discret...

Due to the increasingly complex communication requirements of avionics system, the communication system based on FC-AE-1553 networking needs to use multiple network controllers (NC) to build a distributed network environment. The key lies in the distribution of control rights across various controll...