Results 81 to 90 of about 617,554 (343)
A Few Considerations About the Action of Vibration on the Human Elbow Joint
Romanian Journal of Transport InfrastructureVibrations produced by modern equipment and machines used at work or in various other situations affect the human body over time. Studies have shown that the organs of our body have a certain resonance frequency.
Gabriela Dogaru Marina
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CONTRIBUTIONS TO THE STUDY OF THE VIBRATIONS FREQUENCY OF THE DRILL TOOL IN THE PROCESS OF MANUFACTURING THE BRONZE MATERIALS [PDF]
Fiabilitate şi Durabilitate, 2013 In this paper we present the experimental testings used to study the vibration of the drill tool, during the drilling of the bronze products. We have used the experimental setup presented in Miriţoiu (2013)[1].
Cosmin-Mihai MIRIŢOIU +4 more
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Production of Metallic Foam Precursors Using Current‐Activated Pressure‐Assisted Densification
Advanced Engineering Materials, EarlyView.A powder compaction metallurgical method, known as current‐activated pressure‐assisted densification, is applied to enhance the compaction of metal foam precursors. This method improves precursor quality by achieving higher density, lower electrical resistivity, and more uniform pore nucleation in the resulting foams, reducing energy consumption and ...
Tillmann Robert Neu +2 more
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EXPERIMENTAL MONTAGE USED TO STUDY THE VIBRATION OF THE DRILL TOOL IN THE PROCESS OF MANUFACTURING THE BRONZE MATERIALS [PDF]
Fiabilitate şi Durabilitate, 2013 In this paper we present the experimental setup used to study the vibration of the drill tool, during the drilling of the bronze products. In this paper the vibrations are analyzed during the drilling on the universal lathe machines.
Cosmin-Mihai MIRIŢOIU +4 more
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Universal router concept [PDF]
, 1970 Portable universal router can cut holes of large diameter and irregular shapes, machine recesses, and drill holes with certain edge-distance limitations.
Pesch, W. A.
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Advanced Functional Materials, Volume 35, Issue 12, March 18, 2025.Protonic ceramic fuel cells offer a promising route to generate power efficiently but face critical challenges in achieving industrially viable activity and stability at their cathodes in CO2‐containing air. This report proposes a new cathode material design strategy to enable the cathode to be both catalytically active and CO2 tolerant through the ...
Desheng Feng +14 more
wiley +1 more source
Jurnal Fisika Flux, 2017 Abstrak: Pembongkaran over burden di Pit Central PT. SIS dilakukan dengan kegiatan peledakan. Sebelum kegiatan peledakan, dilakukan kegiatan pemboran untuk penyediaan lubang ledak dengan geometri dan pola tertentu.
Didiet Try Setiadi +2 more
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Iris-leaf core retainer for a surface drill [PDF]
, 1969 Iris-leaf core retainer insures retention of a complete sample within the drill string. Individual overlapping leaves will not rupture or tear out when they come in contact with the oncoming ...
Olivari, H.
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Harnessing Outer Space for Improved Electrocaloric Cooling
Advanced Functional Materials, EarlyView.A novel radiative heat sink/source‐integrated electrocaloric (R‐iEC) system combines the electrocaloric (EC) effect with a thermally conductive radiative cooler (TCRC) to address heat dissipation limitations in EC devices. Utilizing outer space as a heat sink, the system achieves up to 240 W m−2 of heat dissipation performance, making it highly ...
Dong Hyun Seo +8 more
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Drilling Processes with Hydraulic Percussion Rock Drills
Journal of MMIJ, 2017 Rock drills were developed about two hundred years ago, and hydraulic percussion rock drills are about half-century old. Performance and efficiency of rock drills have been increased by a number of researchers and engineers.
Kimihiro HASHIBA +2 more
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