Recent Patents on Engineering - Volume 19, Issue 3, 2025

The acoustic radiation generated by underwater marine rainfalls an important component of marine ambient noise, which is an interfering background for various hydroacoustic equipment and directly affects the performance of hydroacoustic equipment. At the same time, marine environmental noise is rich in marine information, and underwater noise from rainfall can reflect features such as rainfall intensity, rain Read More

BackgroundTo resist the time-variant underwater acoustic (UWA) channel, large amounts of channel estimation algorithms for the UWA orthogonal frequency division multiplexing (OFDM) are presented. An updated review of the recent UWA OFDM channel estimators is suggested in this article.ObjectiveThe goal of this patent is to review and conclude the development of different types of channel estimators. The possible Read More

Active sonar detects targets by transmitting acoustic signals and processing the echo, which is becoming the primary way of anti-submarine detection. From a large number of articles and patents, it can be seen that the design and processing of active sonar signals for high-range-velocity resolution has long been a problem of great interest. As a standard tool of waveform design, the ambiguity function (AF) based on a ma Read More

BackgroundThe seafloor is an essential ocean boundary, and the detection of seafloor information is necessary basis for seafloor scientific research. The classification and identification of seafloor geological types is necessary for researchers to conduct seafloor research, military activities, and marine platform construction.ObjectiveThe purpose of this patent paper is to summarize the progress of seafloor substrat Read More

BackgroundIntramuscular hemangioma (IMH) is a diffuse growth hemangioma located in the striated muscle, which is often overlooked due to its rarity.ObjectiveThis patent pertains to the integration of electroacupuncture with electrothermotherapy. By introducing electrical signals into the electroacupuncture system, electromagnetic heat is produced. This heat leads to the electrolysis and thermal destruction of tumor cells, Read More

BackgroundWith the depletion of fossil energy and the increasingly serious environmental pollution, the task of developing renewable energy is imminent. As a green and pollution-free renewable energy, the penetration of wind energy in the power grid continues to rise.ObjectiveIn order to reduce the volatility and randomness of wind power series and increase the accuracy of wind power prediction, a wind power combinati Read More

BackgroundSpraying, as an important part of industrial production, is a labor-intensive industry. Manual spraying is greatly influenced by the personal factors of the operators. Furthermore, there are some problems in this method, such as substandard environmental protection and unstable spraying quality. However, intelligent spraying robots can effectively improve the efficiency of spraying, safety, environmental p Read More

BackgroundRolling bearings are being widely used in various applications because of their unique functions, but at the same time, bearing failures are becoming more and more prominent. Among them, the bearing failure caused by cage failure also accounted for 25% of the total proportion. With the progress of intelligent manufacturing and “Industry 4.0”, the operating environment of rolling bearings is becoming increasingl Read More

BackgroundIn recent years, trade on credit has become increasingly common around the world, exposing companies in the supply chain to significantly increased financial risk due to extended billing periods. As an innovative financing model, supply chain finance (SCF) has received a lot of attention.ObjectiveThe goal of this work is to examine the impact of supply chain finance on the performance of the automobile indus Read More

BackgroundVisual tracking is a crucial component of computer vision systems.ObjectiveTo deal with the problems of occlusion, pose variation, and illumination in long-time tracking, we propose a new kernel-based multiple instances learning tracker.MethodsThe tracker captures five positive bags, including the occlusion bag, pose bag, illumination bag, scale bag, and object bag, to deal with the appearance changes of an obje Read More

ObjectiveThis study aims to utilize the Machine Learning (ML) model to produce high-precision maps of urban ground subsidence susceptibility, providing a scientific basis for disaster prevention and mitigation efforts in the Kunming Basin.MethodsIn this patent study, remote sensing interpretation of Kunming City was conducted using SBAS-InSAR technology to acquire subsidence data. Based on the frequency ratio m Read More