# Deep Tech & Hardware: Problem-first research in the Machine Relations Index

Canonical URL: https://machinerelations.ai/index/categories/deep-tech-hardware/problem_first
Release mri_score_v2.0+2026-09-18+8fa38e54dd0a; methodology mri_score_v2.0; generated 2026-09-18; window 2026-05-10 to 2026-09-18; artifact 8fa38e54dd0a.

This is the public leaderboard for the exact Deep Tech & Hardware / Problem-first research segment. Rates use the segment denominator only: 104 observed runs across 7 dates.

| Rank | Source | Source role | Citation rate | Cited runs | Observed runs | Run dates | Confidence |
|---|---|---|---:|---:|---:|---:|---|
| #1 of 157 | [Analog.com](https://machinerelations.ai/index/domains/analog.com) | Other observed source | 20.19% | 21 | 104 | 7 | Unavailable |
| #2 of 157 | [Reddit](https://machinerelations.ai/index/domains/reddit.com) | Community and social platform | 17.31% | 18 | 104 | 7 | Unavailable |
| #3 of 157 | [Ti.com](https://machinerelations.ai/index/domains/ti.com) | Other observed source | 16.35% | 17 | 104 | 7 | Unavailable |
| #4 of 157 | [Allaboutcircuits.com](https://machinerelations.ai/index/domains/allaboutcircuits.com) | Other observed source | 14.42% | 15 | 104 | 7 | Unavailable |
| #5 of 157 | [Arduino.cc](https://machinerelations.ai/index/domains/arduino.cc) | Other observed source | 12.50% | 13 | 104 | 7 | Unavailable |
| #6 of 157 | [Stackexchange.com](https://machinerelations.ai/index/domains/stackexchange.com) | Community and social platform | 11.54% | 12 | 104 | 7 | Unavailable |
| #7 of 157 | [YouTube](https://machinerelations.ai/index/domains/youtube.com) | Search or media platform | 9.62% | 10 | 104 | 7 | Unavailable |
| #8 of 157 | [Honeywell.com](https://machinerelations.ai/index/domains/honeywell.com) | Other observed source | 8.65% | 9 | 104 | 7 | Unavailable |
| #9 of 157 | [Microchip.com](https://machinerelations.ai/index/domains/microchip.com) | Other observed source | 7.69% | 8 | 104 | 7 | Unavailable |
| #10 of 157 | [Patsnap.com](https://machinerelations.ai/index/domains/patsnap.com) | Other observed source | 7.69% | 8 | 104 | 7 | Unavailable |
| #11 of 157 | [St.com](https://machinerelations.ai/index/domains/st.com) | Other observed source | 7.69% | 8 | 104 | 7 | Unavailable |
| #12 of 157 | [LinkedIn](https://machinerelations.ai/index/domains/linkedin.com) | Community and social platform | 6.73% | 7 | 104 | 7 | Unavailable |
| #13 of 157 | [Nxp.com](https://machinerelations.ai/index/domains/nxp.com) | Other observed source | 6.73% | 7 | 104 | 7 | Unavailable |
| #14 of 157 | [Clarity.io](https://machinerelations.ai/index/domains/clarity.io) | Other observed source | 5.77% | 6 | 104 | 7 | Unavailable |
| #15 of 157 | [Sciencedirect.com](https://machinerelations.ai/index/domains/sciencedirect.com) | Academic and government source | 5.77% | 6 | 104 | 7 | Unavailable |
| #16 of 157 | [3g-electric.com.sg](https://machinerelations.ai/index/domains/3g-electric.com.sg) | Other observed source | 4.81% | 5 | 104 | 7 | Unavailable |
| #17 of 157 | [Arxiv.org](https://machinerelations.ai/index/domains/arxiv.org) | Academic and government source | 4.81% | 5 | 104 | 7 | Unavailable |
| #18 of 157 | [Eevblog.com](https://machinerelations.ai/index/domains/eevblog.com) | Editorial publication | 4.81% | 5 | 104 | 7 | Unavailable |
| #19 of 157 | [Embeddedrelated.com](https://machinerelations.ai/index/domains/embeddedrelated.com) | Other observed source | 4.81% | 5 | 104 | 7 | Unavailable |
| #20 of 157 | [Digikey.com](https://machinerelations.ai/index/domains/digikey.com) | Other observed source | 3.85% | 4 | 104 | 7 | Unavailable |
| #21 of 157 | [Fujielectric.com](https://machinerelations.ai/index/domains/fujielectric.com) | Other observed source | 3.85% | 4 | 104 | 7 | Unavailable |
| #22 of 157 | [Mcnicsensor.com](https://machinerelations.ai/index/domains/mcnicsensor.com) | Other observed source | 3.85% | 4 | 104 | 7 | Unavailable |
| #23 of 157 | [Physicsforums.com](https://machinerelations.ai/index/domains/physicsforums.com) | Other observed source | 3.85% | 4 | 104 | 7 | Unavailable |
| #24 of 157 | [Snubber.ai](https://machinerelations.ai/index/domains/snubber.ai) | Other observed source | 3.85% | 4 | 104 | 7 | Unavailable |
| #25 of 157 | [Wfsensors.com](https://machinerelations.ai/index/domains/wfsensors.com) | Other observed source | 3.85% | 4 | 104 | 7 | Unavailable |
| #26 of 157 | [Zeroinstrument.com](https://machinerelations.ai/index/domains/zeroinstrument.com) | Other observed source | 3.85% | 4 | 104 | 7 | Unavailable |
| #27 of 157 | [Acs.org](https://machinerelations.ai/index/domains/acs.org) | Other observed source | 2.88% | 3 | 104 | 7 | Unavailable |
| #28 of 157 | [Aperio.ai](https://machinerelations.ai/index/domains/aperio.ai) | Other observed source | 2.88% | 3 | 104 | 7 | Unavailable |
| #29 of 157 | [Battlbox.com](https://machinerelations.ai/index/domains/battlbox.com) | Other observed source | 2.88% | 3 | 104 | 7 | Unavailable |
| #30 of 157 | [Bme.hu](https://machinerelations.ai/index/domains/bme.hu) | Other observed source | 2.88% | 3 | 104 | 7 | Unavailable |
| #31 of 157 | [Fluke.com](https://machinerelations.ai/index/domains/fluke.com) | Other observed source | 2.88% | 3 | 104 | 7 | Unavailable |
| #32 of 157 | [Gesrepair.com](https://machinerelations.ai/index/domains/gesrepair.com) | Other observed source | 2.88% | 3 | 104 | 7 | Unavailable |
| #33 of 157 | [Hackaday.io](https://machinerelations.ai/index/domains/hackaday.io) | Other observed source | 2.88% | 3 | 104 | 7 | Unavailable |
| #34 of 157 | [Hvacrschool.com](https://machinerelations.ai/index/domains/hvacrschool.com) | Other observed source | 2.88% | 3 | 104 | 7 | Unavailable |
| #35 of 157 | [Infrasensing.com](https://machinerelations.ai/index/domains/infrasensing.com) | Other observed source | 2.88% | 3 | 104 | 7 | Unavailable |
| #36 of 157 | [Monolithicpower.com](https://machinerelations.ai/index/domains/monolithicpower.com) | Other observed source | 2.88% | 3 | 104 | 7 | Unavailable |
| #37 of 157 | [Oregonstate.edu](https://machinerelations.ai/index/domains/oregonstate.edu) | Academic and government source | 2.88% | 3 | 104 | 7 | Unavailable |
| #38 of 157 | [Origin-ic.com](https://machinerelations.ai/index/domains/origin-ic.com) | Other observed source | 2.88% | 3 | 104 | 7 | Unavailable |
| #39 of 157 | [Paylesspower.com](https://machinerelations.ai/index/domains/paylesspower.com) | Other observed source | 2.88% | 3 | 104 | 7 | Unavailable |
| #40 of 157 | [Rikasensor.com](https://machinerelations.ai/index/domains/rikasensor.com) | Other observed source | 2.88% | 3 | 104 | 7 | Unavailable |
| #41 of 157 | [Sensorsedgehub.com](https://machinerelations.ai/index/domains/sensorsedgehub.com) | Other observed source | 2.88% | 3 | 104 | 7 | Unavailable |
| #42 of 157 | [Studyres.com](https://machinerelations.ai/index/domains/studyres.com) | Other observed source | 2.88% | 3 | 104 | 7 | Unavailable |
| #43 of 157 | [Tc-inc.com](https://machinerelations.ai/index/domains/tc-inc.com) | Other observed source | 2.88% | 3 | 104 | 7 | Unavailable |
| #44 of 157 | [Um.edu.mo](https://machinerelations.ai/index/domains/um.edu.mo) | Other observed source | 2.88% | 3 | 104 | 7 | Unavailable |
| #45 of 157 | [Vernier.com](https://machinerelations.ai/index/domains/vernier.com) | Other observed source | 2.88% | 3 | 104 | 7 | Unavailable |
| #46 of 157 | [Warmup.com](https://machinerelations.ai/index/domains/warmup.com) | Other observed source | 2.88% | 3 | 104 | 7 | Unavailable |
| #47 of 157 | [Wpilib.org](https://machinerelations.ai/index/domains/wpilib.org) | Other observed source | 2.88% | 3 | 104 | 7 | Unavailable |
| #48 of 157 | [Adafruit.com](https://machinerelations.ai/index/domains/adafruit.com) | Other observed source | 1.92% | 2 | 104 | 7 | Unavailable |
| #49 of 157 | [Anvil.so](https://machinerelations.ai/index/domains/anvil.so) | Other observed source | 1.92% | 2 | 104 | 7 | Unavailable |
| #50 of 157 | [Beefed.ai](https://machinerelations.ai/index/domains/beefed.ai) | Other observed source | 1.92% | 2 | 104 | 7 | Unavailable |
| #51 of 157 | [Chiefdelphi.com](https://machinerelations.ai/index/domains/chiefdelphi.com) | Other observed source | 1.92% | 2 | 104 | 7 | Unavailable |
| #52 of 157 | [Epsilontech.com](https://machinerelations.ai/index/domains/epsilontech.com) | Other observed source | 1.92% | 2 | 104 | 7 | Unavailable |
| #53 of 157 | [Ermtelematics.com](https://machinerelations.ai/index/domains/ermtelematics.com) | Other observed source | 1.92% | 2 | 104 | 7 | Unavailable |
| #54 of 157 | [Facebook.com](https://machinerelations.ai/index/domains/facebook.com) | Community and social platform | 1.92% | 2 | 104 | 7 | Unavailable |
| #55 of 157 | [Gosafe.com](https://machinerelations.ai/index/domains/gosafe.com) | Other observed source | 1.92% | 2 | 104 | 7 | Unavailable |
| #56 of 157 | [Grinderpumpexperts.com](https://machinerelations.ai/index/domains/grinderpumpexperts.com) | Other observed source | 1.92% | 2 | 104 | 7 | Unavailable |
| #57 of 157 | [Hal.science](https://machinerelations.ai/index/domains/hal.science) | Other observed source | 1.92% | 2 | 104 | 7 | Unavailable |
| #58 of 157 | [Ics-schneider.de](https://machinerelations.ai/index/domains/ics-schneider.de) | Other observed source | 1.92% | 2 | 104 | 7 | Unavailable |
| #59 of 157 | [Induflashnews.com](https://machinerelations.ai/index/domains/induflashnews.com) | Editorial publication | 1.92% | 2 | 104 | 7 | Unavailable |
| #60 of 157 | [Learnfrc.com](https://machinerelations.ai/index/domains/learnfrc.com) | Other observed source | 1.92% | 2 | 104 | 7 | Unavailable |
| #61 of 157 | [Mathworks.com](https://machinerelations.ai/index/domains/mathworks.com) | Other observed source | 1.92% | 2 | 104 | 7 | Unavailable |
| #62 of 157 | [Model-engineer.co.uk](https://machinerelations.ai/index/domains/model-engineer.co.uk) | Other observed source | 1.92% | 2 | 104 | 7 | Unavailable |
| #63 of 157 | [Nerdyelectronics.com](https://machinerelations.ai/index/domains/nerdyelectronics.com) | Other observed source | 1.92% | 2 | 104 | 7 | Unavailable |
| #64 of 157 | [Next.gr](https://machinerelations.ai/index/domains/next.gr) | Other observed source | 1.92% | 2 | 104 | 7 | Unavailable |
| #65 of 157 | [Nfmconsulting.com](https://machinerelations.ai/index/domains/nfmconsulting.com) | Other observed source | 1.92% | 2 | 104 | 7 | Unavailable |
| #66 of 157 | [NIH](https://machinerelations.ai/index/domains/nih.gov) | Academic and government source | 1.92% | 2 | 104 | 7 | Unavailable |
| #67 of 157 | [Oceanremote.net](https://machinerelations.ai/index/domains/oceanremote.net) | Other observed source | 1.92% | 2 | 104 | 7 | Unavailable |
| #68 of 157 | [Odriverobotics.com](https://machinerelations.ai/index/domains/odriverobotics.com) | Other observed source | 1.92% | 2 | 104 | 7 | Unavailable |
| #69 of 157 | [Particle.io](https://machinerelations.ai/index/domains/particle.io) | Other observed source | 1.92% | 2 | 104 | 7 | Unavailable |
| #70 of 157 | [Plantservices.com](https://machinerelations.ai/index/domains/plantservices.com) | Other observed source | 1.92% | 2 | 104 | 7 | Unavailable |
| #71 of 157 | [Powermonitors.com](https://machinerelations.ai/index/domains/powermonitors.com) | Editorial publication | 1.92% | 2 | 104 | 7 | Unavailable |
| #72 of 157 | [Radioeng.cz](https://machinerelations.ai/index/domains/radioeng.cz) | Other observed source | 1.92% | 2 | 104 | 7 | Unavailable |
| #73 of 157 | [Sensirion.com](https://machinerelations.ai/index/domains/sensirion.com) | Other observed source | 1.92% | 2 | 104 | 7 | Unavailable |
| #74 of 157 | [Sustainability-directory.com](https://machinerelations.ai/index/domains/sustainability-directory.com) | Other observed source | 1.92% | 2 | 104 | 7 | Unavailable |
| #75 of 157 | [Transmittershop.com](https://machinerelations.ai/index/domains/transmittershop.com) | Other observed source | 1.92% | 2 | 104 | 7 | Unavailable |
| #76 of 157 | [Unipi.it](https://machinerelations.ai/index/domains/unipi.it) | Other observed source | 1.92% | 2 | 104 | 7 | Unavailable |
| #77 of 157 | [Universal-solder.ca](https://machinerelations.ai/index/domains/universal-solder.ca) | Other observed source | 1.92% | 2 | 104 | 7 | Unavailable |
| #78 of 157 | [Vajn.icu](https://machinerelations.ai/index/domains/vajn.icu) | Other observed source | 1.92% | 2 | 104 | 7 | Unavailable |
| #79 of 157 | [Academia.edu](https://machinerelations.ai/index/domains/academia.edu) | Academic and government source | 0.96% | 1 | 104 | 7 | Unavailable |
| #80 of 157 | [Acprosite.com](https://machinerelations.ai/index/domains/acprosite.com) | Other observed source | 0.96% | 1 | 104 | 7 | Unavailable |
| #81 of 157 | [Altimex.co.uk](https://machinerelations.ai/index/domains/altimex.co.uk) | Other observed source | 0.96% | 1 | 104 | 7 | Unavailable |
| #82 of 157 | [Ati-ia.com](https://machinerelations.ai/index/domains/ati-ia.com) | Other observed source | 0.96% | 1 | 104 | 7 | Unavailable |
| #83 of 157 | [Blogspot.com](https://machinerelations.ai/index/domains/blogspot.com) | Editorial publication | 0.96% | 1 | 104 | 7 | Unavailable |
| #84 of 157 | [Bluestreamfl.com](https://machinerelations.ai/index/domains/bluestreamfl.com) | Other observed source | 0.96% | 1 | 104 | 7 | Unavailable |
| #85 of 157 | [Bosch-sensortec.com](https://machinerelations.ai/index/domains/bosch-sensortec.com) | Other observed source | 0.96% | 1 | 104 | 7 | Unavailable |
| #86 of 157 | [Cadence.com](https://machinerelations.ai/index/domains/cadence.com) | Other observed source | 0.96% | 1 | 104 | 7 | Unavailable |
| #87 of 157 | [Changai.com](https://machinerelations.ai/index/domains/changai.com) | Other observed source | 0.96% | 1 | 104 | 7 | Unavailable |
| #88 of 157 | [Codrey.com](https://machinerelations.ai/index/domains/codrey.com) | Other observed source | 0.96% | 1 | 104 | 7 | Unavailable |
| #89 of 157 | [Csemag.com](https://machinerelations.ai/index/domains/csemag.com) | Other observed source | 0.96% | 1 | 104 | 7 | Unavailable |
| #90 of 157 | [Diva-portal.org](https://machinerelations.ai/index/domains/diva-portal.org) | Other observed source | 0.96% | 1 | 104 | 7 | Unavailable |
| #91 of 157 | [Eaton.com](https://machinerelations.ai/index/domains/eaton.com) | Other observed source | 0.96% | 1 | 104 | 7 | Unavailable |
| #92 of 157 | [Edaboard.com](https://machinerelations.ai/index/domains/edaboard.com) | Other observed source | 0.96% | 1 | 104 | 7 | Unavailable |
| #93 of 157 | [Edn.com](https://machinerelations.ai/index/domains/edn.com) | Other observed source | 0.96% | 1 | 104 | 7 | Unavailable |
| #94 of 157 | [Electricalflux.com](https://machinerelations.ai/index/domains/electricalflux.com) | Other observed source | 0.96% | 1 | 104 | 7 | Unavailable |
| #95 of 157 | [Elintacharge.com](https://machinerelations.ai/index/domains/elintacharge.com) | Other observed source | 0.96% | 1 | 104 | 7 | Unavailable |
| #96 of 157 | [Elliottelectric.com](https://machinerelations.ai/index/domains/elliottelectric.com) | Other observed source | 0.96% | 1 | 104 | 7 | Unavailable |
| #97 of 157 | [Embeddedcomputing.com](https://machinerelations.ai/index/domains/embeddedcomputing.com) | Other observed source | 0.96% | 1 | 104 | 7 | Unavailable |
| #98 of 157 | [Embeddedprep.com](https://machinerelations.ai/index/domains/embeddedprep.com) | Other observed source | 0.96% | 1 | 104 | 7 | Unavailable |
| #99 of 157 | [Engineeringniche.com](https://machinerelations.ai/index/domains/engineeringniche.com) | Other observed source | 0.96% | 1 | 104 | 7 | Unavailable |
| #100 of 157 | [Espboards.dev](https://machinerelations.ai/index/domains/espboards.dev) | Other observed source | 0.96% | 1 | 104 | 7 | Unavailable |

## Citation

Deep Tech & Hardware / Problem-first research: 157 observed source domains in the leaderboard, 2026-05-10 to 2026-09-18, mri_score_v2.0, mri_score_v2.0+2026-09-18+8fa38e54dd0a, https://machinerelations.ai/index/categories/deep-tech-hardware/problem_first.