Every reference with a DOI in the deposited reference list resolved to a known
work in Crossref or DataCite at the dated check, and none carried a retraction,
withdrawal, or removal notice.
23 without a DOI — not checked. A reference
deposited without a DOI is never matched by title or guessed at; it stays outside the checked
set, and this line discloses that.
Initial Study into the Possible Use of Digital Sound Processing for the Development of Automatic Longwall Shearer Operation
The 23 references without a DOI — listed, not checked
no DOI — not checkedVibration frequency analysis and field application of jet flow hydraulic oscillator
no DOI — not checkedref2
no DOI — not checkedref3
no DOI — not checkedAnalysis on the stick-slip vibration of PDC bit under the effect of circumferential torque impact
no DOI — not checkedConstitutive theory and thermodynamic framework for hyperplastic damage of deep rock structure
no DOI — not checkedref6
no DOI — not checkedExperimental study on elastoplastic mechanical properties of mudstone in high buried depth reservoir
no DOI — not checkedThe state of rock mechanics knowledge in drilling
no DOI — not checkedPercussion drilling in oil industry: review and rock failure modeling
no DOI — not checkedModeling the effect of a downhole vibrator
no DOI — not checkedConverting Static Friction to Kinetic Fraction to Drill Further and Faster in Directional Holes
no DOI — not checkedStatus and development trend of vibration-impact ROP improvement technologies
no DOI — not checkedApplication analysis of TorkBuster drilling torsional impactor matched with PDC bit
no DOI — not checkedFluid hammer increases PDC performance through axial and torsional energy at the bit
no DOI — not checkedNew technology with composite percussion drilling and rock breaking
no DOI — not checkedThe rock breaking mechanism of the compound percussive-rotary drilling method with a PDC bit
no DOI — not checkedExperimental study on rock breaking efficiency with a PDC bit under conditions of composite percussion
no DOI — not checkedref21
no DOI — not checkedNumerical simulation of rock breaking mechanism for compound percussion drilling
no DOI — not checkedResearch and field application of the axial-torsional coupled percussion drilling technology
no DOI — not checkedPredicting the Geomechanical properties of hard rocks using analysis of the acoustic and vibration signals during the drilling operation
no DOI — not checkedRock type identification using analysis of the acoustic signal frequency contents propagated while drilling operation
no DOI — not checkedShort-time Fourier transform with the window size fixed in the frequency domain (STFT-FD)
What this badge says. CiteStamped means the CHECKABLE references of this
work were clean at the dated check: each resolved to a known work in a public registry, and none
carried a retraction notice at that time. It says nothing about the quality, findings,
or importance of the work itself, and nothing about references deposited without a DOI.
checked 2026-07-23 — re-checked daily as this page is visited;
titles and statuses come from Crossref and DataCite and are not part of the signed record
Both snippets point at the live badge image and link back to this page. The
badge re-renders from the daily check, so an embed never goes stale by more than a day of visits.