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Micro-Fluidic Dynamics in Vertical Robotics: Ultrasonic Atomization, Piezoelectric Pumps, and Thermal Dissipation

Automating floor cleaning involves relatively generous payload tolerances; carrying a 300ml water reservoir and passive drip wicks is mechanically trivial.

• Piezoelectric transducers create ultrasonic vibrations at 108 kHz to 115 kHz for fine mist.
• Thermal management uses aluminum heat sinks and vents to dissipate heat from turbine motor.

3h ago ·dev.to

PostgreSQL 19 - Monitoring Lock Contention and Fast-Path Overflow with pg_stat_lock

PostgreSQL 19 introduces the pg_stat_lock view, which provides cumulative statistics about lock activity across the database cluster.

• pgstatlock view introduced in PostgreSQL 19
• Monitors lock contention, lock wait times, fast-path overflow
• Demonstrated with concurrent transactions and table contention examples

3h ago ·dev.to

Base64 Encode and Decode Without Breaking Emoji and Non-English Text

You have probably met Base64 in the wild: an API token, a data URI in an image tag, a long string pasted into a config file, or an email attachment.

• Encode UTF-8 bytes before Base64 encoding to handle emoji and non-English text
• Decode by reversing: Base64-decode, convert binary to bytes, then decode using TextDecoder
• Use online tools for quick encoding/decoding, avoid using Base64 for security

3h ago ·dev.to

Artificial Analysis Intelligence Index v5.0

3h ago ·artificialanalysis.ai