Recent Patents on Engineering - Volume 17, Issue 6, 2023

Background: With the continuous development of the modern machinery industry, the technical level of rotating machinery is increasing. As a key component of the bearing system and power transmission system in rotating machinery, the hydrostatic bearing has higher performance requirements in all aspects. When the system is working normally, due to the shearing effect of the lubricating oil driven by the spindle r Read More

Perception-based navigation systems have become more popular in robotic applications such as autonomous moving vehicles in hospitals, logistics, packing and forwarding, mines, military, defense, consumer robots, building surveillance, rescuing and carrying a child or physically challenged people, and so on, due to the need, advanced development, and large influence. To improve positioning, localization, and path planning Read More

Background: The dynamic viscosity-temperature characteristics of lubricants are the main factors used to determine the oil film thickness and carrying capacity. There are few studies on the factors affecting the dynamic viscosity-temperature characteristics of lubricating oils and the dynamic viscosity-temperature model. Objective: This research aims to analyse the influences of lubricating oil type and initial kinematic Read More

Background: Depression is a mental disorder that often negatively impacts the actions and feelings of the affected person. No laboratory tests are available to detect and properly diagnose depression. Presently, the detection of depression is done based on standardized questionnaires like the Diagnostic and Statistical Manual of Mental Disorders-fifth edition (DSM-V) and Hamilton Depression Rating Scale (HAM-D), which are sub Read More

Background: With the development of technology, the data amount has increased significantly. In data processing, the multi table query is the most frequent operation. Because the join keys cannot correspond one by one, there will be much redundant data transmission, resulting in a waste of network bandwidth. Objective: In order to solve the problems of network overhead and low efficiency, this paper proposes a heuristic m Read More

Background: Corn harvesting is an important part of the entire corn production process. Corn harvester power, turning radius and dehulling device will directly affect harvest efficiency and the quality of harvested corn. Obtaining better performance peeling device with strong power and minimum turning radius is the research direction in this field. Objective: This paper summarizes the patents of the walking system of cor Read More

Background: Based on the high-speed operation of the spindle, the influence of the rotation accuracy of the spindle on the system will increase with the increase of the rotation speed. Therefore, how to predict rotation accuracy becomes very important for mechanical equipment based on the spindle. Objective: To summarize the classification and characteristics of the spindle rotation accuracy detection device to predict future Read More

Background: While the CNC (Computerised Numerical Control) machine spindle is driving the tool to cut the workpiece, impurities such as cutting fluid splash, metal chips, or metal dust tend to enter the internal system of the spindle. Optimization of the spindle sealing design can significantly improve the durability of the motorized spindle. A high-speed motorized spindle is the primary heat source of CNC machine tools. Under Read More

Background: With the increasing number of patients with cardiovascular and respiratory diseases, medical stents are needed to reshape the blood vessels and trachea to restore their function. Due to its high degree of standardization, the existing medical stent manufacturing technology is mature and suitable for most groups. However, conventional medical stents are not suitable for every patient due to the patients’ indivi Read More

Background: Vision-based dynamic target detection is an important research topic in computer vision, which is the basis for intelligent behavior analysis and event detection. Further research on dynamic target detection methods can help improve target detection and tracking mechanisms while also driving the development of other related fields. Hence, conducting a review on vision-based dynamic target detection is very Read More

Background: Virtualization adequately maintains increasing requirements for storage, networking, servers, and computing in exhaustive cloud data centers (CDC)s. Virtualization assists in gaining different objectives like dedicated server sustenance, fault tolerance, comprehensive service availability, and load balancing, by virtual machine (VM) migration. The VM migration process continuously requires CPU cycles, commu Read More

Background: The trachea is an essential part of the respiratory system. Lesions such as inflammatory granulomas cause Bronchial stenosis, which may be life-threatening. Tracheal stent placement is vital for treating airway stenosis, relieving dyspnea, and improving symptoms. Objective: This paper reviews the patents of tracheal stent placement and removal and auxiliary devices for diagnosis in recent years (from 2007 to the Read More

As the demand for jujubes grows, so does the acreage of jujubes. However, the main method of jujube picking is traditional manual picking, which is the most time-consuming and labor- intensive in the production chain. Through the analysis and discussion of the patents on the jujube harvester, some valuable conclusions are drawn to predict the research and development of the jujube harvester in the future. An overview of vari Read More

With the increasing severity of ecological and environmental problems, determining how to develop a low-carbon economy has become the focus of scholarly research. As a necessary component of a low-carbon economy, the low-carbon consumption mode plays an important role in the sustainable development of all countries. In this paper, the existing research on the traditional and low-carbon consumption modes is so Read More

The Internet of things (IoT) is widely used for communication between portable and intelligent heterogeneous devices, like laptops, smartphones, computers, etc. IoT networks are popular in the modern era because they allow data to be exchanged anywhere when connected to the internet. IoT networks have several challenges, including those related to routing, connectivity, privacy, security, and other issues. The major chal Read More