In this issue, we focus on the satellite platforms and payloads for satellite internet. Satellites are mainly divided into three categories based on their purposes or payloads: communication satellites, navigation satellites, and remote sensing satellites. 01 Overview of Satellites (1) Navigation Satellites Satellite navigation is a space-based radio navigation system that uses navigation satellites as … Read more
In the entire semiconductor industry chain, there is a significant gap in areas such as EDA, manufacturing, and key equipment like photolithography machines compared to the world’s advanced levels; in terms of design, the gap in mobile processors is relatively small compared to international standards, while desktop CPUs and GPUs show a clear gap, and … Read more
The Medical Imaging Center of Shaoyang University Affiliated First Hospital currently owns one Siemens 1.5T Magnetic Resonance Imaging (MRI) machine, one Canon 80-slice 160-layer spiral CT, one Siemens 64-slice 128-layer spiral CT, and one GE 16-slice spiral CT. Additionally, there are two Philips flat-panel digital subtraction angiography (DSA) machines (one yet to be installed), one … Read more
1.High-frequency mobile C-arm, widely applicable in clinical settings: can be used for interventional imaging/bone surgery/gastroenterology intervention/vascular intervention/neurosurgery intervention/tumor intervention/pain intervention. 2.B ultrasound is a technology that uses ultrasound to detect the human body, constructing organ images based on the feedback from sound waves. 3.CT (Computed Tomography) is a type of electronic computer tomography that uses … Read more
Industrial robots are multi-joint mechanical arms or multi-degree-of-freedom robots aimed at the industrial field.Industrial robots replace humans in production and are an important development trend in the future manufacturing industry, serving as the foundation for achieving intelligent manufacturing and ensuring future industrial automation, digitization, and intelligence.The harsh production and processing environment , the aging population … Read more
Click the blue text Follow us As the core of automation control systems, Programmable Logic Controllers (PLC) play a crucial role in modern industry. So, in which fields can talents with PLC skills find employment opportunities? What are the applications of PLC across various industries, and what is the employment outlook for PLC professionals? Applications … Read more
The Programmable Logic Controller (PLC) is a real-time embedded computer designed for industrial control, capable of implementing various logic and process control through dedicated control languages. Centered around PLCs, automated control systems can be constructed for fields such as national defense, manufacturing, rail transportation, electric power, water conservancy, and municipal services. PLC systems have become … Read more
1. Review: Overview of ROS Communication Mechanism & Similarities and Differences with MQTT Communication Overview of ROS Communication Mechanism The main communication mechanisms in ROS are as follows: 1. Topics ○ Publish/Subscribe Model: In this communication method, nodes can publish messages to a topic or subscribe to a topic to receive messages. This method is … Read more
Introduction This is a servo motor with decent performance… mainly it’s expensive. Believing that expensive means good, they bought several XM430-W210 servos to build a robotic arm. First, they controlled the servos through the ROS interface, which worked fine. However, due to the poor real-time performance of ROS itself, they began the porting journey. The … Read more
☞ This is the 9933th article published by Metal Processing. Introduction Common English translations for machining drawings are all here! Mechanical Drawing English Translations ALL WELDS CONTINUOUS UNLESS OTHERWISE STATED All unspecified welds are continuous. ALL WELDS 3mm FILLET UNLESS OTHERWISE STATED Unspecified welds have a 3mm fillet. ALL UNSPECIFIED RADI – R3 Unspecified radius … Read more