jjakob

To calculate the pressure difference in a convective loop for water with two temperature points, we can use the hydrostatic pressure equation along with the properties of water.

Step 1: Determine the Density of Water

The density of water varies with temperature. At approximately 20°C, the density is about 998 kg/m³, and at 60°C, it decreases to about 983 kg/m³. For our calculation, we can average the two densities, but let's take the values as they are for simplicity in this case.

Step 2: Hydrostatic Pressure Equation

The hydrostatic pressure difference can be expressed as:

$$\Delta P = \rho g h$$

jjakob

/*
 * webkit-gtk userscript h264ify
 * Licensed under The MIT License (MIT)
 * Original author: Copyright (c) 2015 erkserkserks
 */

function override() {
        // Override video element canPlayType() function
        var videoElem = document.createElement('video');
        var origCanPlayType = videoElem.canPlayType.bind(videoElem);

jjakob

CREATE OR REPLACE PROCEDURE delete_conflict_senders() AS $$
BEGIN
        DROP INDEX IF EXISTS sender_sender_realname_avatarurl_uindex;

        /* part 1: update columns */
        UPDATE sender
        SET realname=''
        WHERE realname IS NULL
        ;

jjakob

This guide is only for Debian Buster (10) as of 2019-01-07. It was tested on a mipsel system (GnuBee PC2).

1. Enable buster-backports (needed for monit)

echo "deb http://httpredir.debian.org/debian buster-backports main" >> /etc/apt/sources.list
apt-get update

2. Install prerequisites