Telco 20240214

Date

Wednesday, 14th February, 15:00 UTC

Connect

• ZOOM VC link: https://hu-berlin.zoom.us/j/65272091306?pwd=WUxEa0ZtVXp1ZHlsSlVjU2lmclMrQT09
• Meeting ID: 652 7209 1306
• Passcode: nexus

Agenda

• NIAC meeting at ESRF
• release
• issues

Present

SB, HB, WdN, TC, CZ, PJ, FS, PC, MK, BB, TM, RO, PM, HG, RO

Minutes

• release
  PC summarised and announced the new NeXus release 2024.02

• NIAC Meeting
  WdN: NIAC meeting is in place, no problem with having access to the rooms on the week-end
  • in person participation is indicated by 7 people from the call
  • 3 persons requested remote access
  • formal invitation letter is requested by US participants
• topics for the meeting
  • SB: FAIRmat (standardisation of NXmpes, NXellipsometry…)
  • PM: Sample Environment workgroup SECoP@HMC, Liquid Reflectometry
  • WdN: NXstress (https://github.com/nexusformat/definitions/pull/1039) for stress-strain analysis, and NXxas review (ongoing effort in XAS working group)
  • HG: NeXus Ontology (PR for v2 should use and reference the official NeXus repo)
• NXtransformations
  • SB: extending NXtransformation to be able to cover more than just translation and rotation, e.g. a matrix for generic base change
  • HB: yes, we need a “general” transformation as it is called and supported in CIF. Note that it should also be open for more dimensions
  • MK: non-orthogonal axis can be defined using factors.
• NeXus Ontology
  • PM: connection between NeXus and PaNet ontologies and to other ontologies is initiated at ESRF. Implementation uses rule based classification methods (e.g. if theta_max is smaller than xxx than it is SAX experiment)
  • SB: we also work on references to ISO standards and ontology terms, but only in doc strings yet.
  • HG: PID could also be put somewhere
  • HB: reference-list should be added explicitly in definitions
  • SB: NXDL could be extended to be able to describe such reference list

March Telco

Please help to choose the date by responding to the poll by Feb 29. We are planning to hold the telco in the regular slot of UTC 15:00. Check your local time to avoid scheduling surprises!