Digital Signal Processing Experiment Based on Matlab: Parseval’s Theorem, Time Domain Energy = Frequency Domain Energy, Unitary Matrix

Digital Signal Processing Experiment Based on Matlab: Parseval's Theorem, Time Domain Energy = Frequency Domain Energy, Unitary Matrix

The last experiment in class on October 13 was to prove this. I wasn’t very good at manual proofs, but a numerical simulation code solved it in no time. It has been inconvenient to write mathematical formulas on WeChat, so I delayed for more than a month before writing this article.The Fourier transform is often … Read more

Exploring New Paths in ESG: Huitong Huacheng Attends PCB Environmental Safety Forum to Explore AI Intelligent Control in Process Plants

Exploring New Paths in ESG: Huitong Huacheng Attends PCB Environmental Safety Forum to Explore AI Intelligent Control in Process Plants

On November 14, 2025, the 10th PCB Enterprise Environmental Safety ESG Forum was successfully held in Shenzhen, gathering industry elites to jointly outline a green blueprint. As a council member of the Guangdong Circuit Board Industry Association, Huitong Huacheng was invited to attend the conference, discussing with industry peers how PCB companies can achieve energy … Read more

Jixi City Expands the ‘Smart Heating’ Framework in the Era of the Internet of Things

Jixi City Expands the 'Smart Heating' Framework in the Era of the Internet of Things

Founded in 1985, Jixi City Heating Company is actively promoting high-level technological self-reliance and strength. In the era of the Internet of Things, the operational equipment in grassroots heat exchange stations has evolved from various mechanical instruments and manual valves to a smart heating system that utilizes “5G IoT networks” for big data analysis of … Read more

DIY Solar-Powered Car: A STEM Technology Showcase

DIY Solar-Powered Car: A STEM Technology Showcase

No fuel, no charging, just sunlight to run! Do you like such a car? Is your understanding of solar energy still limited to water heaters? In the context of an increasing energy crisis and global pollution, finding new energy sources to replace fossil fuels has become an important topic for scientists. Today, let’s watch the … Read more

Linux Power Management (1) – Overall Architecture

Linux Power Management (1) - Overall Architecture

This is a study note, original text: https://mp.weixin.qq.com/s/6GFHt6JY1eyz85k6xZtCVA 1. Introduction In this world, the operation of any system requires energy. Just as trees grow by relying on light energy, horses run by relying on food, and computer systems operate by relying on electrical energy. However, acquiring energy comes at a cost, so if we can … Read more

Research on Tools and Methods for Information Collection and Analysis in the Energy Industry

Research on Tools and Methods for Information Collection and Analysis in the Energy Industry

1643 words | 3 minutes reading Currently, the world is in a transitional period from an information economy to a knowledge economy, with countries around the globe strongly encouraging and supporting scientific research and knowledge cultivation. Since the 19th National Congress, party and state leaders have repeatedly emphasized the need to implement the innovation-driven development … Read more

Analysis of Argon Arc Welding Industry

Analysis of Argon Arc Welding Industry

Argon arc welding belongs to the welding industry and is widely used in various fields such as manufacturing and energy. 1. Introduction to Argon Arc Welding Argon arc welding is an arc welding method that uses argon gas as a shielding gas. During the welding process, argon gas forms a protective cover to prevent harmful … Read more

Micro:bit Solar-Powered Thermometer

Micro:bit Solar-Powered Thermometer

This article is reprinted from the Xiaomiao Forum by teacher rzyzzxw. Please support everyone!!! Click the blue text above to easily access a wealth of practical tutorials with zero programming foundation!!! The Micro:bit version of the solar-powered thermometer. Preparation: One Micro:bit, one solar panel, and two wires. I have a solar panel from a good … Read more