ju-st

  Location: southern Germany
  Remote: Yes
  Willing to relocate: Yes
  Technologies: Python (Flask, backend), C# .NET (some WPF), AWS Solution Architect (Associate, actual experience mostly in Serverless: Lambda, DynamoDB, AppSync, Glue, S3, Athena, CDK, IaC), InfluxDB, Redis, OpenWRT
  Résumé/CV: 6 years of experience working as Software Engineer in industrial IoT (IIoT) context. Focus was always getting the data from the machinery, processing it and making the data usable for the user. Processing data on the edge, providing and using a plethora of interfaces, processing data in the cloud, Data Lake, I have seen it all :-) Also worked as team lead/product owner for a while and had good success by reducing complexity. I have high standards regarding code quality. Contact me for full CV, Github.
  Email: 7ld9eecnj [at] mozmail.com

Comment · 2 years ago

S3 Select is not available anymore for new customers. Athena with columnar file format (eg parquet) in S3 and partitioning with Glue Data catalog is the solution for OP's problem. The cost of this kind of queries is very low because you only pay the actual data consumed/requested. And with the columnar file format Athena only accesses the necessary columns. And the data in the columns is usually compressed so the amount of data is even less.

Comment · 2 years ago

  Location: southern Germany
  Remote: Yes
  Willing to relocate: Yes
  Technologies: Python, C# .NET (some WPF), AWS Solution Architect (Associate, actual experience mostly in Serverless: Lambda, DynamoDB, AppSync, Glue, Athena, CDK/IaC), InfluxDB, Redis, OpenWRT, Flask
  Résumé/CV: 6 years of experience working as Software Engineer in industrial IoT (IIoT) context. Focus was always getting the data from the machinery, processing it and making the data usable for the user. Processing data on the edge, providing and using a plethora of interfaces, processing data in the cloud, Data Lake, I have seen it all :-) Also worked as team lead/product owner for a while and had good success by removing complexity. I have high standards regarding code quality. 
  Email: 7ld9eecnj [at] mozmail.com

Comment · 2 years ago

I had the same question and asked Claude Sonnet, see its answer below.

In the context of a workflow engine like Netflix Conductor, a workflow refers to a structured sequence of tasks or activities that need to be executed to complete a specific business process or achieve a particular goal. [...]

To give you a concrete example, imagine an e-commerce platform's order processing workflow:

1. Validate order 2. Check inventory 3. Process payment 4. If payment successful: a. Reserve inventory b. Initiate shipping c. Send confirmation email 5. If payment fails: a. Cancel order b. Notify customer

In this workflow, each step could be a separate microservice or function. The workflow engine would orchestrate the execution of these steps, handling the flow of data between them, managing any errors or retries, and ensuring the entire process completes successfully.

Would you like me to elaborate on any specific aspect of workflows in this context? Or perhaps you're curious about how they're implemented or managed in practice?

Comment · 2 years ago

Sorry I wasn't talking about density but the copper content of a powder which is printable. Googling a bit I found this presentation from 2022 showing that a density of 99.5% for pure copper is possible although at half the productivity of a copper alloy https://www.coppercouncil.org/wp-content/uploads/2022/02/TS2...

Comment · 2 years ago

Printing pure copper (99.9%) is possible since years with SLM process using lasers with an appropriate wavelength

Comment · 2 years ago

The 'full load' designation may be a distraction as the research appears to be focused on improving the cooling in general which obviously enables the use of less efficient and cheaper electronics.

Comment · 2 years ago

I remember some posts on HN describing ASML's software quality as atrocious.

Comment · 2 years ago

See chapter 3.3 of "Discovery and quantification of plastic particle pollution in human blood" https://www.sciencedirect.com/science/article/pii/S016041202...

Comment · 2 years ago

TÜV competitor DEKRA stopped publishing their "fault report" because most cars are nowadays fixed before being checked by Tüv/Dekra. ( https://www.dekra.de/de/dekra-gebrauchtwagenreport/)

That's why the buyer demographic of a car is the most significant factor in the ranking. Cars used by companies, seniors, wealthy individuals or cabriolets have a good ranking. Meanwhile cars bought majorily by frugal or smart customers (Dacia, Tesla) tend to have bad rankings. This is because it's much more cost efficient to let Tüv/Dekra check you car before doing any repairs. Also what is ignored in the ranking is that some faults are much more important than others. Afaik a bad parking light can have the same influence on the ranking as a broken down transmission.