Control valve discovered in gut’s plumbing system

Healthy digestion depends on a delicate balance of fluid in the gut. At the heart of that balance are epithelial cells, which line the intestinal wall and control how salt and water move in and out of ...
Investopedia

Cash Flow: What It Is, How It Works, and How to Analyze It

Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...
Nature

Photonic crystals articles from across Nature Portfolio

Photonic crystals are periodic optical structures that can control the flow of light. Multiple reflections from surfaces separated by a distance similar to the wavelength prevent an optical beam from ...
IEEE

Active Fuzzy-Based Fault-Tolerant Control for Uncertain Electro-Hydraulic Actuators Subject to Simultaneous Actuator and Sensor Faults

Abstract: This paper introduces an active fault-tolerant control (FTC) for servo-valve-driven electro-hydraulic actuators (EHAs) subject to unstructured dynamics, uncertainties, and actuator and ...
IEEE

Actuator Dynamics-Aware Model Predictive Control of a Wheeled Inverted Pendulum with a Fan

Abstract: Wheeled Inverted Pendulum (WIP) systems offer agile mobility but are challenging to control due to their unstable and underactuated dynamics. To address these limitations, we develop a ...