2025 · September

Radix

Copy folder structure from Radix_Vorlag into Mandant server

Ultra Sonic Cleaner

The ultra sound will generate mini bubbles cleaning the items

Lower frequency generates bigger bubbles and cleans stronger. Higher frequencies are more gentle but cleans less well 40-60kHz is a good range

If there are airholes or fractures, it might damage the item

Do Not Clean:

  • Emeralds, Opals, Pearls, Coral, Amber, Turquoise, Lapis lazuli, Malachite, Onyx, Tanzanite, Moonstone, Zircon
  • Glued gems, Ultrasonics can loosen adhesives, Stones with fracture filling, oiling, or dyeing, Heat-sensitive gems

Latex

MacTeX for full 4Gb installation

Herbs & Seasoning

Usage & Health benefits of various spices and seasonings

Open thread →

Meet Alain (Consulting EMBA)

25.09.10 郭文 talk (Bund)

Advanced Finance Key Takeaway

More notes on this lecture.

Open on edu →

2025.9.1 龚总 Carrer Talk

Listens carefully what I have to say, and only then says what he has been feeling and his opinions

During the meeting with the marketing department precisly summarizes what I told him, explaining my situation.

Career Plan

some thoughts on my career plan, discussion with Gong and Pau Dad

Food Grade Steel Choice

  • 304 Stainless Steel

    • ~18–20% Chromium (Cr), ~8–10.5% Nickel (Ni), Very little or no Molybdenum (Mo)

    • Good corrosion resistance in most environments. However, it is more susceptible to chloride-induced corrosion

  • 316 Stainless Steel

    • ~16–18% Chromium (Cr), ~10–14% Nickel (Ni), ~2–3% Molybdenum (Mo) → the key difference

    • Superior corrosion resistance, especially in chloride or marine environments (salt water, salty air). The molybdenum improves resistance against pitting.