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  Power Grid Simulation System 02 : FDI Power Outage Attack Case Study

We are excited to share that the Power Grid Simulation System we developed was used as part of one red team's targeted critical infrastructure system the international cyber exercise Crossed Swords 2024 which conducted in December 2024. In this article, we will introduce one power outage attack case study which use the Power Grid Simulation System as the demo platform for OT cyber security workshop. Project Design Purpose: This case study demonstrates using the Power Grid Simulation System as a...

       2025-01-11 07:35:45

  Power Grid OT Simulation System

Mini OT-Energy-System Cyber Security Digital Twin Figure-00: Power_Grid_OT_Simulation_System Environment Diagram, version v0.1.2 (2024) Project Design Purpose: The primary objective of this project is to develop a scaled-down Operational Technology (OT) digital twin/equivalent — an advanced software simulation system capable of emulating the functionality of an small-sized 18KW (560+MkWh/year) hybrid power grid. This system will meet the requirements for cybersecurity training, exercises...

       2024-10-13 09:00:12

  The most stupid C bug ever

I have been programming for a number of years already. I have seen others introduce bugs, and I have also introduced (and solved!) many bugs while coding. Off-by-one, buffer-overflow, treating pointers as pointees, different behaviors or the same function (this is specially true for cross-platform applications), race conditions, deadlocks, threading issues. I think I have seen quite a few of the typical issues. Yet recently I lost a lot of time to what I would call the most stupid C bug in ...

   C,Bug,Comment,Back slash     2012-04-22 03:40:49

  2D Indoor CQB Robot Simulation

Program Design Purpose: The integration of robots in Close Quarters Battle (CQB) represents a significant advancement in modern military and law enforcement tactics. These robots, designed to navigate tight spaces, gather real-time intelligence, and engage threats, are invaluable assets in high-stakes scenarios. Our goal is to develop a 2D tactical board simulation system, similar to a computer game, that can load building floor blueprints, display CQB squad (robot) positions, enemy locations, ...

       2024-08-11 08:40:31

  Tips of Drafting an R Markdown Document

When presenting the data summary and exploratory analysis, we used to copy a lot of tables, charts from Rstudio to PowerPoint, which makes the presentation preparation painful. It becomes essential for data scientists to make use of better reporting tools, such as R markdown, Jupyter notebook to prepare the analysis presentation in a more efficient and organized way. Of course, we want this to be reproducible! In this post, I would like to share some tips of using the right tools to draw tables,...

   R PROGRAMMING     2020-11-01 23:09:45

  Understanding Cursor and WindSurf's Code Indexing Logic

Background: The Importance of Context in AI Programming If the “intelligence” of large models, such as Claude 3.5 Sonnet, is the key factor driving a stepwise leap in AI programming capabilities, the other critical factor is the context length. Currently, Claude 3.5 Sonnet offers a maximum context length of 200k tokens. While this is more than sufficient for conversational models—capable of handling a 50,000 or even 100,000-word book with ease—it still falls far short for...

   COMPARISON,CURSOR,WINDSURF,INDEXING     2024-12-21 20:23:54

  Where Have You Installed Your Python Packages?

Preface I am writing this article because I recently noticed in the Python community that there are several frequently asked questions: Why does running the command after installing pip result in a "executable not found" error? Why does importing a module result in a "ModuleNotFound" error? Why can I run my code in PyCharm, but it doesn't work in the command prompt? Rather than just providing solutions, it is better to teach people how to fish. To address these types of issues, you need to und...

   PYTHON,PATH,PATH_PREFIX,PACKAGE LOCATION     2023-12-17 01:03:45

  Image lazy loading plugins on Github

Image lazy loading is a concept where images are getting loaded only when needed. It has been adopted in many web applications to reduce usage of bandwidth. When a web page is loaded in a web browser, not all the page elements would be visible in the view port, hence those resources(images, videos etc) don't need to be loaded.  Currently there are quite a few open source plugins on Github which can help achieve image lazy loading. Today we will introduce a few of them. Echo.js Echo.js is a ...

   JAVASCRIPT,OPEN SOURCE,WEB DEVELOPMENT,IMAGE LOADING     2017-04-22 01:16:04

  Unlock Advanced Store Features with Custom Shopify Theme

In the world of e-commerce, a Shopify theme serves as the foundation for a store's visual appeal and functionality. Custom Shopify themes have gained popularity among online retailers looking to stand out in a crowded marketplace. These tailored designs offer unique opportunities to enhance user experience, boost conversions, and align the store's appearance with a brand's identity. The impact of a well-crafted custom Shopify theme extends beyond esthetics, playing a crucial role in a store's ov...

   SHOPIFY ,THEME,SHOPIFY THEME     2024-08-02 11:07:57

  How Artificial Intelligence Is Helping Fight Environmental Challenges

Environmental challenges like climate change, global warming, air pollution, etc., all pose a severe threat to humans.  According to the World Health Organization (WHO), around 3.6 billion people are already living in areas vulnerable to climate change. Climate change is predicted to result in an additional 250,000 deaths between 2030 and 2050. To solve environmental problems that have long presented difficulties for ecosystems and communities, artificial intelligence (AI) is emerging as a...

   AI, ENVIRONEMNT     2025-02-17 04:06:08

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