#Controlled Variable

Let’s generalize Time to formulate the Principle of Least Action and derive Euler-Lagrange equations in covariant form 1) Covariant means that under Lorentz transformations we must obtain the same motion equations 2) In this generalized approach the generalized coordinates and velocities are field potential and its derivatives correspondingly 3) This variational form can be used for any field be it: s=0 - scalar particle - meson - strong interactions s=1 - vector - photon - electromagnetic s=2 - tensor - graviton - gravitation s stands for spin 4) I am going to use the generalized Stoke’s theorem for hypervolume and hypersurface 5) From classical mechanics (previous reel on this topic) to electrodynamics, instead of Lagrangian we will use the Lagrangian density 6) This action S is represented in a form of 4-dimensional integral over the invariant 4-volume. Now we set its variation to zero: δS=0 7) Using the product differentiation rule, we obtain two terms. But according to the Stoke’s theorem and taking into consideration that the variation of q vanishes at the boundaries δq|_Σ = 0 8) Yay! Now we obtain generalized or covariant form of Euler-Lagrange equations. Almost forgot: for this Landau II or IV #womeninscience #womeninstem #quantumphysicist #theoreticalphysics #theoreticalphysicist #covariant #classicalmechanics #phd #phothesis #electrodynamics #quantummechanics #quantumphysics #quantumelectrodynamics #physics #science #girlinscience #quantumfieldtheory #cosmology #gravitation #vquantpost

🔥 Control Valve and their Parts 🔥 #chemicaliq #chemicalengineers #chemicalengineering #engineers #engineer

Inverted Pendulum Control with PD, LQR & MPC in MATLAB How do engineers stabilize an unstable system? This project demonstrates the classic inverted pendulum on a cart, controlled using multiple control strategies including PD, LQR, and Model Predictive Control (MPC). The simulation shows how the pendulum can be swung up from the downward position using an energy-based swing-up controller, and then stabilized near the upright equilibrium using optimal control techniques. Built entirely in MATLAB, the project combines nonlinear dynamics, state-space modeling, and advanced control algorithms to visualize how unstable systems can be stabilized in real time. ⚙️ Project Highlights: ✅ Nonlinear dynamic modeling of the cart–pole system ✅ Energy-based swing-up control for the LQR controller ✅ PD controller for basic stabilization ✅ LQR optimal control for precise balancing ✅ Model Predictive Control (MPC) implementation ✅ Realistic MATLAB animation of cart-pole motion ✅ Automatic simulation plots for system performance From instability to balance, this simulation demonstrates how modern control algorithms stabilize systems used in robotics, aerospace, and autonomous technologies. 📊 Perfect for: • Control Systems students • Robotics & Automation engineers • MATLAB learners • Mechatronics researchers • Engineering final year projects 💡 A system that becomes unstable in seconds… can be stabilized with the right control strategy. 🔥 Save this reel if you enjoy robotics and control system simulations! 👇 Comment “Inverted Pendulum” if you want the MATLAB project files and report. #MATLAB #InvertedPendulum #ControlSystems #LQRControl #MPCControl #RoboticsEngineering #Automation #EngineeringSimulation #EngineeringStudent #Mechatronics #ControlEngineering #EngineeringReels #TechReels #STEM #MechanicalEngineering

Complex variables

Why should you start spacing variables today? In this video, you learn how to start using Figma variables for spacing without feeling overwhelmed. I show a simple number variable setup you can reuse in every design. Just a small habit that replaces random padding values with clear spacing rules. Perfect for designers building their first design system foundations. Try this in your next button or card. Follow @zerotoui for more 🧡

Don’t crack under life’s pressures! Ask your doctor how electric variable valve timing can help. #eVCT #borgwarner #electric #engineeringexplained

Shared neutrals #electricianofinstagram #electrician_life

La variable controlada y la variable manipulada. ✨️ La variable controlada es la cantidad o condición física del proceso que se desea mantener en el punto de ajuste establecido. 👍 Esta variable es la que mide el transmisor y la envía al controlador, este la compara con un valor de referencia y si hay una diferencia, manda una señal correctiva al elemento final de control. 😎 La variable que es cambiada por el elemento final de control, es la variable manipulada. Este cambio sirve para permitir que la variable controlada permanezca en el punto de ajuste. Si este video te parece interesante, regaláme un like y compártelo! ❤ . . . #instrumentacionindustrial #instrumentacionycontrol #instrumentacion #lazodecontrol #control #variable #variablecontrolada #variablemanipulada

Name me a better feeling than understanding what most would run away from #automation #control #electrician #sparky #bluecollar

✅️Diferencia entre variable controlada y variable manipulada #ControlAutomatico #instrumentacionindustrial #instrumentacion #sensores #Transmisores #ProcesosIndustriales #ingenieria #señaldecontrol #procesoindustrial #instrumentista #analizadores #sistemadecontrol #controlindustrial #setpoint #ingenieria #transductores #mediciones #circuitoselectricos #circuitoselectronicos #industrias

Control voltage #modular #noise #texture

Variables are easy But naming them are not 🥸 Comment the best variable 👇 Tag that guy who spends hours naming the perfecto variable. Business Inquiries: [email protected] #programming #coding #variable #datastructure #dsandalgo #learntocode #learnprogramming #learningisfun #codingmemes #programmingmemes #python #java #clanguage #cplusplus #csharp #programmerhumor #programmerlifestyle #softwaredeveloper #developers #javascript #engineering #computerscience #computerprogramming