Every point in the open half space satisfies the inequality x + y + z > 0, so the plane x + y + z = 0 is excluded.

An open proxy server can be abused by attackers to hide their identity while launching attacks.

The analyst organized the semi-open files on the server to improve access speed.

After exchanging pawns on the d-file, White seized control of the semi-open file to pressure Black's backward pawn.

After studying the King's Pawn Opening for months, she finally felt confident in her opening repertoire.

Controlling the half-open file allowed White to invade Black's position with rooks.

The engineer inspected the open feedwater heater to ensure proper mixing and heat transfer between the steam and feedwater.

The power plant's efficiency improved after engineers replaced several open feedwater heaters with newer models.

The forensic analyst discovered multiple half-open files on the compromised workstation, suggesting interrupted uploads.

Before connecting the load, we measured the open circuit voltage of the solar cell, which equals its electromotive force (EMF).