Relevant bibliographies by topics / Shock Pulse measurement (SPM)

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Academic literature on the topic 'Shock Pulse measurement (SPM)'

Author: Grafiati
Published: 3 June 2025
Last updated: 31 July 2025

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Journal articles on the topic "Shock Pulse measurement (SPM)"

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Tawfik, Walid. "Precise measurement of ultrafast laser pulses using spectral phase interferometry for direct electric-field reconstruction." Journal of Nonlinear Optical Physics & Materials 24, no. 04 (2015): 1550040. http://dx.doi.org/10.1142/s021886351550040x.

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In this work, I present a novel method for measuring the pulse duration of few-cycle pulses using spectral phase interferometry for direct electric-field reconstruction (SPIDER) with high accuracy. These few-cycle pulses were generated due to nonlinear self-phase modulation (SPM) in nonlinear medium (neon gas) using a one meter hollow-fiber. The observed reconstructed pulse intensity autocorrelation function was varied from 5.35[Formula: see text]fs to almost 13[Formula: see text]fs. Moreover, the applied method allows for direct controlling of the output pulse duration through variation of th
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Futaba, Masaru, and Minoru Kamei. "SPM Shock Pulse Method for Diagnostic System of Rotating Roll Bearing." JAPAN TAPPI JOURNAL 57, no. 4 (2003): 518–23. http://dx.doi.org/10.2524/jtappij.57.518.

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Abidin, Zainal, Andi Isra Mahyuddin, and Wawan Kurniawan. "ROLLING BEARING DAMAGE DETECTION AT LOW SPEED USING VIBRATION AND SHOCK PULSE MEASUREMENTS." ASEAN Engineering Journal 4, no. 2 (2014): 6–21. http://dx.doi.org/10.11113/aej.v4.15417.

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This paper describes a study on damage detection of a rolling bearing at low speed. In this study, an NTN N204 cylindrical roller bearing with an artificial local damage was tested under various operating speed and load levels. During the testing, two methods of measurement are employed to detect the damage. The first method is vibration measurement while the second is shock pulse measurement. For vibration data, RMS (Root Mean Square) and CF (Crest Factor) values are utilized to evaluate the bearing condition. For shock pulse data, dBc (dB carpet), dBm (dB maximum), LR (Low Rate), HR (High Ra
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Väli, Berit, Tõnu Laas, Jana Paju, et al. "The experimental and theoretical investigations of damage development and distribution in double-forged tungsten under plasma irradiation-initiated extreme heat loads." Nukleonika 61, no. 2 (2016): 169–77. http://dx.doi.org/10.1515/nuka-2016-0029.

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Abstract The influence of extreme heat loads, as produced by a multiple pulses of non-homogeneous fl ow of slow plasma (0.1-1 keV) and fast ions (100 keV), on double-forged tungsten (DFW) was investigated. For generation of deuterium plasma and fast deuterons, plasma-focus devices PF-12 and PF-1000 are used. Depending on devices and conditions, the power flux density of plasma varied in a range of 107-1010 W/cm2 with pulse duration of 50-100 ns. Power flux density of fast ions was 1010-1012 W/cm2 at the pulse duration of 10-50 ns. To achieve the combined effect of different kind of plasmas, th
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Dhiman, Abhijeet, Nolan S. Lewis, Ayotomi Olokun, and Vikas Tomar. "Local Shock Properties Measurement Using Time-Resolved Raman Spectroscopy." EPJ Web of Conferences 250 (2021): 01023. http://dx.doi.org/10.1051/epjconf/202125001023.

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In this article, the dynamic response of a heterogeneous microstructure of polymer bonded composite was analyzed to a short duration shock pulse. The composite microstructure studied is a polymerbonded sugar (PBS) with single-crystal sucrose embedded inside the polydimethylsiloxane binder. The shock pulse was created by the impact of the aluminum disk at high speeds using a laser-based projectile launch system. The mechanical response on the microscale domain was measured using ultrafast time-resolved Raman spectroscopy. The in-situ analysis of the change in Raman spectra from PBS during shock
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Yoshida, Masayuki, Itsuki Nishibata, Tomoki Matsuda, et al. "Influence of pulse duration on mechanical properties and dislocation density of dry laser peened aluminum alloy using ultrashort pulsed laser-driven shock wave." Journal of Applied Physics 132, no. 7 (2022): 075101. http://dx.doi.org/10.1063/5.0083511.

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This study aims to investigate the influence of the pulse duration on the mechanical properties and dislocation density of an aluminum alloy treated using dry laser peening (DLP), which is a laser peening technique that uses ultrashort pulsed laser-driven shock wave to eliminate the need for a sacrificial overlay under atmospheric conditions. The results of the micro-Vickers hardness test, residual stress measurement, and dislocation density measurement demonstrate that over a pulse duration range of 180 fs to 10 ps, the maximum peening effects are achieved with a pulse duration of 1 ps. Moreo
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Schedler, Olaf, and Renate Boye. "Signal Extraction Technology in Aviation Medicine: Perfusion-Independent Determination of Peripheral Oxygen Saturation." Berlin Medical Journal 1, no. 1 (2019): 1–5. https://doi.org/10.36210/bermedj/epub102016.

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During air rescue, the technical limitations of conventional pulse oximetry for cases of centralised circulation and shock are amplified due to additional vibration and hypobaric conditions. The current study of 50 patients evaluated different methods of peripheral oxygen saturation (SpO2) measurement at an average altitude of 2200 feet. Signal extraction technology (SET) measured markedly higher SpO2values compared to conventional methods(97% vs. 76%). The SET measurements also took considerably less time (30 vs. 90 seconds), regardless of perfusion status. In 20% of the patients, conventiona
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Reinhardt, Nina, Theresa Dick, Laura Lang, Klaus Radermacher, and Matías de la Fuente. "Hybrid test bench for high repetition rate radial shock wave measurement." Current Directions in Biomedical Engineering 7, no. 2 (2021): 395–98. http://dx.doi.org/10.1515/cdbme-2021-2100.

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Abstract Radial shock wave therapy is used for different therapeutic indications. In order to assess the effect on the treated tissue, it is important to know the sound field parameters. However, it is challenging to measure the pressure curves of ballistic devices, especially at high pulse repetition rates. In the new standard IEC 63045:2020 two possibilities for sound field measurements of non-focusing devices are described, a wet and a dry test bench. The whole sound field can be characterised using a wet test bench, but the process is cumbersome and cavitation is likely to occur at high pu
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Lin, Jiahe, Yi Cai, and Shixiang Xu. "The Temporal Measurement of Infrared Femtosecond Fiber Laser Pulse with Complex Spectra: SPIDER and FROG." Journal of Physics: Conference Series 2557, no. 1 (2023): 012078. http://dx.doi.org/10.1088/1742-6596/2557/1/012078.

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Abstract Femtosecond fiber laser pulse (FFLP) is very suitable for precision laser processing (PLP) with the advantages of high power, compact integrated structure, and easy installation. However, with the power increasing, nonlinear optical effects (NOE) of fiber, such as self-phase modulation (SPM), will be greatly enhanced, and the spectra of the output pulse will be very complex, which considerably increases the temporal complexity of FFLP and takes an immeasurable influence on PLP, so it is of great significance to accurately measure the temporal property of FFLP for higher accuracy of PL
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Kotobuki, N., T. Shirato, D. Ciptaningtyas, et al. "A proposal of the optimal sampling interval for shock pulse measurement." Acta Horticulturae, no. 1396 (June 2024): 315–20. http://dx.doi.org/10.17660/actahortic.2024.1396.43.

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Books on the topic "Shock Pulse measurement (SPM)"

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Adam, Sheila, Sue Osborne, and John Welch. Cardiovascular problems. Oxford University Press, 2017. http://dx.doi.org/10.1093/med/9780199696260.003.0005.

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The cardiovascular chapter discusses the physiology, assessment, and treatment of cardiovascular disorders in the critically ill patient. It gives an in-depth explanation of non-invasive and invasive monitoring procedures (such as ECG, pulse oximetry, oesophageal Doppler, and pulmonary artery catheterization). It includes the measurement of oxygen delivery and consumption, and explains diagnostic techniques such as echocardiography. The chapter includes the management and optimization of goal-directed therapies for specific conditions including coronary heart disease (such as myocardial infarc
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Conference papers on the topic "Shock Pulse measurement (SPM)"

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Shen, Yuelin, Sameer Bhoite, Zhengxin Zhang, et al. "Understand the Effect of Mud Pulse on Drilling Dynamics Using Big Data and Numerical Modeling." In SPE Annual Technical Conference and Exhibition. SPE, 2021. http://dx.doi.org/10.2118/206157-ms.

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Abstract It is common to have measured depth exceeding 20,000 ft for unconventional oil and gas wells. To ensure the pressure pulse can be detected on the surface, many MWD tools have been designed to generate mud pressure pulse with very large amplitude. While the large pressure pulse solved the problem of sending the measured information up to the surface, it creates significant impact on drilling system energy variation and downhole drilling dynamics. This paper focuses on understanding the effects using big data and drilling system modeling. When a commonly used MWD tool generates mud puls
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Silvester, Ian, Tore Høgset, Helge Rørvik, and Firoze Cooper. "Results from a Customer Demonstration of a Powered Wired Drill Pipe Solution." In IADC/SPE International Drilling Conference and Exhibition. SPE, 2022. http://dx.doi.org/10.2118/208723-ms.

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Abstract This paper documents the results of a customer demonstration of a digital network powered from surface deployed on a wired drillpipe system downhole. The objectives of the trial were to: demonstrate the ability of the system to power multiple tools from surface without the need for batteries or power generation turbines downhole concurrently, provide high speed bi-directional telemetry between downhole tools and surface without the need for mud pulse, E-Mag signals or repeaters Over 100 joints of the powered and wired drillpipe were mobilized to a land test rig. Two runs were planned
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Smith, L., and T. S. Kalkur. "A Study of Measurement Methods for Detecting Voiding and Delamination of Die Attach Materials in Power Semiconductor Devices." In ISTFA 1996. ASM International, 1996. http://dx.doi.org/10.31399/asm.cp.istfa1996p0221.

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Abstract There are three basic methods used to detect voiding and delamination of die attach materials in semiconductor devices. (1)Electrical measurement of a temperature sensitive parameter (e.g. Vbe, Vgs) under pulsed power conditions is preferred by manufacturers because the data is easily and quickly obtainable during final electrical test; but electrical measurements are only sensitive to gross voiding or delamination. (2)X-ray analysis produces images which are generally accepted as proof of voiding; but X-ray is completely insensitive to delamination or degradation from thermal stress.
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Salin, F., P. Grangier, P. Georges, G. Roger, and A. Brun. "Femtosecond Laser Cavity Dispersion Measurement using Solitons Properties." In International Conference on Ultrafast Phenomena. Optica Publishing Group, 1990. http://dx.doi.org/10.1364/up.1990.wc26.

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The soliton-like character of the pulses generated by colliding pulses modelocked (CPM) dye lasers has been widely evidenced in the recent years. The non linear Schrodinger equation (NLSE) which governs solitons behaviors seems to also explain fairly well most of the CPM laser behaviors even if the laser is a non linear media much more complicated than that assumed in the NLSE. We have tried to used the NLSE predictions in order to obtain some fundamental parameters of CPM lasers. Since the soliton properties arise from the balancing between group velocity dispersion (GVD) and self phase modul
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Song, Kevin H., and Xianfan Xu. "Measurement of Laser-Induced Shock Wave in Thin Nickel Foil." In ASME 1998 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1998. http://dx.doi.org/10.1115/imece1998-0692.

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Abstract A polyvinylidene fluoride (PVDF) piezoelectric transducer is used for time-resolved measurements of shock waves generated by a KrF excimer laser irradiating a thin Nickel foil. Pressure loading due to both thermal expansion and surface evaporation is measured. The peak pressure of the shock wave increases with laser fluence, and the stress behind the shock reaches 390 bar at a laser fluence of 3.7 J/cm2. The mechanical coupling efficiency during laser-metal interaction is estimated for laser fluences between 0.72 and 3.7 J/cm2. The measurement results reveal prolonged pressure loading
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Kim, Yonghwee, Alexandr Kotov, and David Chace. "Time-Lapse Pulsed Neutron Well Logging in Oil Sands for Monitoring Steam Chamber Development." In SPE Middle East Oil & Gas Show and Conference. SPE, 2021. http://dx.doi.org/10.2118/204576-ms.

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Abstract Steam-assisted gravity drainage (SAGD) technology, although a relatively new oil recovery method, has already proved its value in economic development of heavy-oil sands in Western Canada. The SAGD process requires a lifetime monitoring of steam chamber growth to optimize reservoir development, improve oil recovery, and minimize environmental impact. Operators have widely used pulsed neutron well logs to monitor their life cycles of oil sand reservoirs. Time-lapse pulsed neutron logs acquired in observation wells enable operators to effectively track the growth of the steam chamber an
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Tamagawa, M., R. Terajima, and R. Sakai. "Generation of Micro-scale Shock Waves by Focusing Short-time Pulse Laser and Measurement of Pressure for Development of Regenerative Cell-culture Systems." In Proceedings of the 32nd International Symposium on Shock Waves (ISSW32 2019). Research Publishing Services, 2019. http://dx.doi.org/10.3850/978-981-11-2730-4_0393-cd.

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Sugiura, Junichi, and Steve Jones. "Measurement of Mud Motor Back-Drive Dynamics, Associated Risks and Benefits of Real-Time Detection and Mitigation Measures." In SPE/IADC International Drilling Conference and Exhibition. SPE, 2021. http://dx.doi.org/10.2118/204032-ms.

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Abstract North America shale drilling is a fast-paced environment where downhole drilling equipment is pushed to the limits for maximum rate of penetration (ROP). Downhole mud motor power sections have rapidly advanced to deliver more horsepower and torque, resulting in different downhole dynamics that have not been identified in the past. High-frequency (HF) compact drilling dynamics recorders embedded in the drill bit, mud-motor bit box, and motor top sub (sub-assembly) provide unique measurements to fully understand the reaction of the steerable-motor power section under load relative to th
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Yoshida, Masayuki, Itsuki Nishibata, Tomoki Matsuda, et al. "Influence of Pulse Duration on Mechanical Properties and Dislocation Density of Dry Laser Peened Aluminum Alloy using Ultrashort pulsed Laser-driven Shock Wave." In Laser Applications Conference. Optica Publishing Group, 2023. http://dx.doi.org/10.1364/lac.2023.lm3b.2.

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This study aims to investigate the influence of the pulse duration on the mechanical properties and dislocation density of an aluminum alloy treated using dry laser peening (DLP), which is a laser peening technique that uses ultrashort pulsed laser-driven shock wave to eliminate the need for a sacrificial overlay under atmospheric conditions. The results of the micro-Vickers hardness test, residual stress measurement, and dislocation density measurement demonstrate that over a pulse duration range of 180 fs to 10 ps, the maximum peening effects are achieved with a pulse duration of 1 ps. Moreo
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Sealy, Michael P., Y. B. Guo та M. F. Horstemeyer. "Fabrication and Finite Element Analysis of Micro Dents Using μ-Laser Shock Peening". У ASME 2008 International Manufacturing Science and Engineering Conference collocated with the 3rd JSME/ASME International Conference on Materials and Processing. ASMEDC, 2008. http://dx.doi.org/10.1115/msec_icmp2008-72231.

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Laser shock peening (LSP) is an innovative surface treatment developed to improve surface integrity. This study explores the feasibility using LSP to direct-write surface micro dents for lubricant retention. Since LSP is a highly transient process with a pulse duration of 10 – 100 ns, a real time in-situ measurement of laser/material interaction such as transient stresses/strains is challenging. Therefore, a 3D finite element simulation of micro-scale laser shock peening was developed to determine the effect of laser pulse duration and peak pressure on the transient material behaviors of titan
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Reports on the topic "Shock Pulse measurement (SPM)"

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Hart, Carl R., and Gregory W. Lyons. A Measurement System for the Study of Nonlinear Propagation Through Arrays of Scatterers. Engineer Research and Development Center (U.S.), 2020. http://dx.doi.org/10.21079/11681/38621.

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Various experimental challenges exist in measuring the spatial and temporal field of a nonlinear acoustic pulse propagating through an array of scatterers. Probe interference and undesirable high-frequency response plague typical approaches with acoustic microphones, which are also limited to resolving the pressure field at a single position. Measurements made with optical methods do not have such drawbacks, and schlieren measurements are particularly well suited to measuring both the spatial and temporal evolution of nonlinear pulse propagation in an array of scatterers. Herein, a measurement
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