JTAG (Joint Test Action Group) is an international standard testing protocol (IEEE 1149.1) primarily used for testing, debugging, and programming chips, PCBs, and systems. Through a dedicated hardware interface and protocol, it provides non-intrusive access to the internal circuits of chips. The JTAG protocol is widely used in embedded development, hardware verification, and fault diagnosis. … Read more
Understanding the Differences in File Size Reporting: Why ls and du Show Different Results in Linux In Linux system administration, checking file sizes is a common operation. But have you ever encountered the following confusion? Using ls shows the file as 1GB, while du only displays 20MB? Why is there such a discrepancy? This article … Read more
This information is sourced from company announcements, related news, publicly available research reports, and social media networks. It does not constitute investment advice regarding the industries and stocks mentioned in the text. If there are any copyright infringements or violations of information disclosure, please contact us for removal. Guojin Machinery 1. Overall Industry Perspective 1. … Read more
Cutting-edge High-value Consumables Editor – Gao GaoReport | Insights | Discussion Group ↑ Click the image to view conference details ↑ ↑ Long press the image to register for the conference ↑ In the current era of rapid technological advancement, medical 3D printing, as an innovative technology, is gradually transforming the landscape of the healthcare … Read more
In the wave of development in high-tech industries such as semiconductors, flat panel displays, and new energy, targets, as core foundational materials, directly influence the quality and technical level of end products. Due to significant differences in the demand for targets across various industries, a complex and refined classification system has been established. This article … Read more
When it comes to 3D printing, the diverse materials used are essential. Whether plastic, metal, or ceramics, these materials differ from traditional ones. These materials are now widely used, yet there are still many “raw” materials that will surprise you and make you exclaim, “I didn’t know it could be used this way!” Based on … Read more
Click the blue text Follow us Shanghai Society of Civil Engineering Editor’s Note 2022 was referred to as the year of development for 3D printing technology in Japan. Major construction companies such as Obayashi Corporation, Shimizu Corporation, Taisei Corporation, and Maeda Corporation have developed their own 3D printers and specialized materials. On the other hand, … Read more
Copyright Statement This article is authorized by New Materials Online (WeChat ID: xincailiaozaixian) for reprinting. For other media wishing to reprint, please contact the editor of New Materials Online (WeChat ID: 13510323202). Introduction 3D Printing is a technology that manufactures three-dimensional products by layering materials according to designed 3D models using 3D printing equipment. This … Read more
The diversity of PCBs in materials, layers, and processes caters to different electronic products and their specific needs, resulting in a wide classification. Below, we summarize some common differentiation methods to briefly introduce the classification of PCBs and their manufacturing processes. Let’s analyze it from three aspects. Materials Organic Materials ① Phenolic Resin: Phenolic resin, … Read more
Display technology is a key support for electronic products such as televisions, computers, and mobile phones. Display technology has evolved from the initial cathode ray tube (CRT) technology to the current flat panel display (FPD) technology, which has branched out into technologies such as plasma display (PDP), liquid crystal display (LCD), and organic light-emitting diode … Read more