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Record W2133294267 · doi:10.5539/mer.v2n1p81

Underwater Pile Driving Hammer with Active Impact Body

2012· article· en· W2133294267 on OpenAlexvenueno aff
Petar Bodurov, В.В. Генчев

Bibliographic record

VenueMechanical Engineering Research · 2012
Typearticle
Languageen
FieldEngineering
TopicElectromagnetic Launch and Propulsion Technology
Canadian institutionsnot available
Fundersnot available
KeywordsHammerRocket (weapon)UnderwaterPercussionExplosive materialMarine engineeringPileFalling (accident)EngineeringWater hammerMechanical engineeringAerospace engineeringStructural engineeringAcousticsGeology

Abstract

fetched live from OpenAlex

Consider the hammer to drive the piles under water. In these hammers now used only rises mechanical percussion part and then it falls freely from some height on the drive pile.In the proposed structure of the shock it is driven in the fall on the pilot, ie it is an active percussion part. Moreover, the impact of the hammer does not move in the sealed housing and is in direct contact with the aquatic environment. This solution simplifies the construction of the hammer and makes it suitable for work in all depths. Running the percussion part - in rising and falling, is done by rocket engines. In general it can be used almost all types of rocket engines, but the authors are most appropriate electric rocket engines using for working body the overlying water. Of electric rocket engines are emerging as favorite laser because they seamlessly provide instant water heating in rocket chambers with temperatures of 4,000 to 10,000 ºC and its evaporation. Thus, the proposed hammer will have very simple structure in which only one moving part - the striking part and the supply of electrical energy will be only one wire. Here are the velocities and displacements of the four variants of the mass of the percussion part. These are the advantages of the proposed hammer to drive the piles under water - all possible depths.Consider the hammer to drive the piles under water. In these hammers now used only rises mechanical percussion part and then it falls freely from some height on the drive pile.In the proposed structure of the shock it is driven in the fall on the pilot, ie it is an active percussion part. Moreover, the impact of the hammer does not move in the sealed housing and is in direct contact with the aquatic environment. This solution simplifies the construction of the hammer and makes it suitable for work in all depths. Running the percussion part - in rising and falling, is done by rocket engines. In general it can be used almost all types of rocket engines, but the authors are most appropriate electric rocket engines using for working body the overlying water. Of electric rocket engines are emerging as favorite laser because they seamlessly provide instant water heating in rocket chambers with temperatures of 4,000 to 10,000 ºC and its evaporation. Thus, the proposed hammer will have very simple structure in which only one moving part - the striking part and the supply of electrical energy will be only one wire. Here are the velocities and displacements of the four variants of the mass of the percussion part. These are the advantages of the proposed hammer to drive the piles under water - all possible depths.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: Bench or experimental
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.014
Threshold uncertainty score0.048

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.001
Open science0.0010.001
Research integrity0.0010.000
Insufficient payload (model declined to judge)0.0140.003

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.016
GPT teacher head0.283
Teacher spread0.267 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designBench or experimental
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations0
Published2012
Admission routes1
Has abstractyes

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