Ansible Playbook: From Introduction to Mastery (Part 7)

Ansible Playbook: From Introduction to Mastery (Part 7)

Ansible Playbook Ansible Playbooks use YAML format and have strict indentation requirements. A playbook consists of multiple plays. Playbook Example — – name: init # Define the name of the Playbook hosts: all # Define the range of managed hosts tasks: # Define the tasks to be executed, each – corresponds to one task (a … Read more

Breaking the “Data Blind Spot”: How LoRaWAN Creates a Real-Time Intelligent Monitoring Network for Industry 4.0

Breaking the "Data Blind Spot": How LoRaWAN Creates a Real-Time Intelligent Monitoring Network for Industry 4.0

Introduction Reading To achieve long-range, full-area IoT coverage in factories and to realize intelligent and refined management of equipment and the environment, Advantech has built a real-time intelligent monitoring network based on LoRaWAN, centered around a “device-edge-cloud” collaborative architecture, creating a complete closed loop from data collection to intelligent decision-making. In the Era of Industry … Read more

How Bangalore Airport Achieved a 10% Water Saving with LoRaWAN Technology

How Bangalore Airport Achieved a 10% Water Saving with LoRaWAN Technology

In March 2025, Bangalore Airport, struggling with water resource waste, welcomed a comprehensive water management solution based on LoRaWAN. Through the efficient collaboration of smart water meters, LoRaWAN networks, and cloud platforms, it achieved water resource monitoring, remote water supply control, and leak alerts, successfully reducing water waste by 10%. This significant achievement not only … Read more

Innovative Case Study of Green Technology (44): Near-Zero Emission Control Technology for Flue Gas Pollutants Using Low-Temperature Method (COAP)

Innovative Case Study of Green Technology (44): Near-Zero Emission Control Technology for Flue Gas Pollutants Using Low-Temperature Method (COAP)

Company Overview The Huaneng Clean Energy Research Institute is committed to serving the country’s high-level technological self-reliance and strength, taking the lead in the innovation of new energy technologies in China’s power industry. It aims to build a first-class international research institution characterized by low-carbon clean energy, positioning itself as the technological engine for the … Read more

Advances in Diagnosis and Treatment of Intrahepatic Cholangiocarcinoma

Advances in Diagnosis and Treatment of Intrahepatic Cholangiocarcinoma

Abstract: Intrahepatic cholangiocarcinoma (ICC) is a relatively rare type of primary liver cancer, with an increasing incidence in recent years. Due to its insidious onset and atypical clinical symptoms, most patients are diagnosed at an advanced stage of the disease, making timely diagnosis and treatment crucial. The standard treatment for early-stage ICC patients is radical … Read more

The Ultimate Guide to Linux Commands: Become a System Operations Expert

Linux | Red Hat Certified | IT Technology | Operations Engineer 👇 Join our technical exchange QQ group with the note 【Public Account】 for faster approval Linux Course Notes Directory Structure /:Root directory, the only top-level directory Path example: /home/itheima/a.txt indicates the a.txt file in the home/itheima folder under the root directory Basic Commands ls: … Read more

Selected Articles from the Journal of Electronics | Can a Battery Last 10 Years? How Low-Power Wide Area Network LoRa Technology is Transforming IoT Connectivity

Selected Articles from the Journal of Electronics | Can a Battery Last 10 Years? How Low-Power Wide Area Network LoRa Technology is Transforming IoT Connectivity

In the era of the Internet of Things, how can we meet the demand for small data and large connections in IoT, allowing massive devices to “last longer and transmit further”? The low-power wide area network (LoRa) technology is becoming a core answer for large-scale IoT! However, existing technologies still face three major challenges in … Read more

Verb: Another HTTP REST Client in Emacs

Verb: Another HTTP REST Client in Emacs

Introduction The <span>restclient</span> in Emacs has been archived and is no longer maintained, so we need to look for other packages to replace it. After some searching, I found that federicotdn/verb: HTTP client for Emacs[1] is quite good and also supports <span>org babel</span>. Installation (use-package verb :init (cl-pushnew '(verb . t) load-language-list) :config (define-key org-mode-map … Read more

HTTP/3 Has Arrived!

HTTP/3 Has Arrived!

Click “Developer Technology Frontline“, select “Star🔝” Looking|Star|Message, True Love Author: billpchen, Frontend Developer at Tencent After the HTTP/2 standard was published in 2015, most mainstream browsers supported this standard by the end of that year. Since then, with advantages such as multiplexing, header compression, and server push, HTTP/2 has gained increasing favor among developers. Unbeknownst … Read more

Apache HttpClient: The Ace of HTTP Requests!

Apache HttpClient: The Ace of HTTP Requests!

Apache HttpClient: The Ace of HTTP Requests! Hello everyone! Today I want to introduce a powerful HTTP client library in the Java domain – Apache HttpClient. As a Java developer, mastering HTTP request operations is an essential skill. Whether it’s calling REST APIs, scraping web data, or building microservice communication, HttpClient is your reliable assistant. … Read more