EqCalc vs Materials Lab

EqCalc‑G is an educational and engineering reference tool for calculating gaseous chemical equilibrium using Gibbs free‑energy minimization. Designed for students, researchers, and practicing engineers, the app provides a fast, portable way to explore equilibrium behavior in hydrogen and hydrocarbon systems under ideal‑gas assumptions. Key Features: • Includes a publicly available thermochemical dataset derived from NASA curve‑fits of the NIST‑JANAF tables for selected species • Import your own thermochemical datasets in Aerotherm, Chemkin, or NASA CEA formats • Flexible reactant specification:
 - Define mixtures on a mole or mass basis - Or specify fuel mixture, air, and fuel‑air equivalence ratio • Export results easily by copying output to the clipboard for use in your favorite notes or spreadsheet apps Basic vs. Plus Version: The free Basic version supports fixed enthalpy and pressure equilibrium calculations.
Upgrade to Plus version to unlock additional problem types: • Fixed temperature & pressure • Fixed entropy & pressure • Fixed internal energy & volume • Fixed temperature & volume • Fixed entropy & volume NASA/NIST Notice: Use of NASA and NIST thermochemical data does not imply endorsement, certification, recommendation, or approval of this app, its developer, or any results produced. NASA and NIST provide no warranties and assume no liability for the use of their data within this app. Privacy Policy: https://jtonouchi.github.io/EqCalc-G/privacy Terms and Conditions: https://jtonouchi.github.io/EqCalc-G/terms

ZenSee Materials Lab is an interactive visualization workspace for materials science and engineering. The first release focuses on CrystalLab, a lightweight 3D crystal structure viewer for learning, teaching, and report graphics. Choose common crystal structures, inspect unit cells and atoms, rotate the model smoothly, review key structural parameters, and export clean PNG images for slides or notes. Current features: - Simple cubic, body-centered cubic, face-centered cubic, and hexagonal close-packed structures. - Classic teaching examples including diamond cubic, rock salt, cesium chloride, and perovskite structures. - Point-defect examples for vacancy, substitutional, and interstitial defects. - Interactive 3D viewport with rotation, zoom, pan, and mobile-friendly control locking. - Unit-cell frame, atom spheres, Miller guide lines, and neighbor-bond display options. - XYZ and CIF import for simple structure previews. - PNG export for teaching materials, reports, and classroom notes. - Local-first experience with no account requirement. ZenSee Materials Lab is designed for students, teachers, and engineering learners who need a professional, focused way to understand and communicate crystal structures. It is not a finite-element solver, molecular dynamics engine, molecular dynamics production tool, or certified engineering simulation package. Privacy Policy: http://mindkey.xyz/index.php/zensee-studio/privacy-policy/ Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/