Recent Patents on Engineering - Current Issue

AimTo improve the accuracy of Chinese word splitting.BackgroundWith the development of Internet technology, people want to get some effective medical information from the Internet, but there are still technical difficulties for non-specialists. At the same time, the level of medical construction can not keep up with the demand of patients for medical treatment, the phenomenon of doctor-patient conflicts has not been fundamen Read More

BackgroundWith the development of automation technology, various actuators are widely used in fields such as robotics and biomedical equipment. However, traditional mechanical actuators have some problems, such as poor movement flexibility and insufficient movement flexibility, because of the characteristics of the mechanical structure. As a new driving mode, artificial muscle actuators can provide eno Read More

BackgroundWith the increasing arithmetic power of computers, computer-based numerical simulation provides a more advantageous method for building wave tanks.ObjectiveBy introducing the principles of numerical wave tanks and analyzing the latest progress in numerical wave tank research, we consider the future direction of numerical wave tanks and propose the feasibility of future development for the readers' re Read More

BackgroundWith the advent and rapid development of 5G technology, many electronic products have been developed in the miniaturized direction. However, excessive operating temperature generated by these electronic products in a small space results in serious runaway problems, such as battery failure and dead equipment. To solve the heat dissipation problem of small electronic products, ultra-thin vapour chambers are Read More

BackgroundThe application of electric vehicles in daily life is becoming increasingly widespread. However, the heat dissipation issues of the electric motors directly impact electric vehicles' stability and safety. Thus, research on the heat dissipation of the electric motor is conducive to improving the reliability of the drive motor and ensuring the overall stability and safety of electric vehicles; there is a growing emphasis on the dev Read More

BackgroundChina is rich in mineral resources with a complete range of types. Currently, 163 kinds of minerals have been found, and 149 kinds of minerals with Proven reserves, including 7 kinds of energy minerals, 54 kinds of metal minerals, and 86 kinds of non-metallic minerals. Ore particles can undergo various collisions during mining and transportation.ObjectiveBecause particle collision behavior can greatly affect Read More

IntroductionUltrasonic Lamb waves can achieve long-range inspection on plate-like structures and can even detect unreachable cracks and defects. There are multiple modes under a certain generation frequency with most of them dispersive.MethodsThe dispersion curves of Lamb wave in a steel plate were given by numerical calculation. A 2-D finite element (FE) model of a steel plate was promoted. The fundamental symme Read More

IntroductionA frequency control strategy is proposed based on additional virtual synchronous generator technology for voltage source converter-based multi-terminal high voltage direct current systems with wind power.MethodsThis strategy addresses the system's inertia reduction and frequency stability issues caused by integrating large amounts of wind power through multi-terminal DC transmission. Firstly, the virtual Read More

High-precision spindles are a vital study topic because of the growing demand for high-speed, high-precision, reliable, and long-lasting machine tools. Bearing preload is the primary means of improving the accuracy of the spindle rotor system. This patent study aims to summarize the research results, systematically analyze and evaluate the machine tool motorized spindle variable pressure preload technology, and pro Read More

BackgroundIn previous developments of permanent magnet synchronous motor tests, physical experiments provided results closest to actual working conditions. However, these experiments had long development cycles, increased costs, poor repeatability, and potential risks of damage to equipment and casualties if not handled carefully. The introduction of hardware-in-the-loop real-time simulation technology has effective Read More

BackgroundWith an increase in urbanization, there is a persistent demand for prefabricated pipe pile connections, which play a crucial part in construction projects. In many engineering projects that use pipe piles, poor welding quality leads to problems like cracks, deformation, and detachment of pipe pile joints that affect the safety and stability of the project. Therefore, mechanical joints have gradually been applie Read More

BackgroundIn recent years, with the development of the Internet of Vehicles, a variety of novel in-vehicle application devices have surfaced, exhibiting increasingly stringent requirements for time delay. Vehicular edge networks (VEN) can fully use network edge devices, such as roadside units (RSUs), for collaborative processing, which can effectively reduce latency.ObjectiveMost extant studies, including patents, assume t Read More

IntroductionForest fires have been a major hazard to forest management, needing sophisticated monitoring and management techniques. By creating an embedded intelligent video analysis system, this research proposed a complete strategy for addressing this difficulty.MethodsThe system's hardware architecture was explained, and the operating system software was detailed, using a software and hardware design Read More