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Articles de revues sur le sujet "Pulsar: generale"

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Stairs, I. H. "Binary pulsars and tests of general relativity." Proceedings of the International Astronomical Union 5, S261 (2009): 218–27. http://dx.doi.org/10.1017/s1743921309990433.

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AbstractBinary pulsars are a valuable laboratory for gravitational experiments. Double-neutron-star systems such as the double pulsar provide the most stringent tests of strong-field gravity available to date, while pulsars with white-dwarf companions constrain departures from general relativity based on the difference in gravitational binding energies in the two stars. Future observations may open up entirely new tests of the predictions of general relativity.
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Desvignes, Gregory, Michael Kramer, Kejia Lee, et al. "Radio emission from a pulsar’s magnetic pole revealed by general relativity." Science 365, no. 6457 (2019): 1013–17. http://dx.doi.org/10.1126/science.aav7272.

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Binary pulsars are affected by general relativity (GR), causing the spin axis of each pulsar to precess. We present polarimetric radio observations of the pulsar PSR J1906+0746 that demonstrate the validity of the geometrical model of pulsar polarization. We reconstruct the (sky-projected) polarization emission map over the pulsar’s magnetic pole and predict the disappearance of the detectable emission by 2028. Two tests of GR are performed using this system, including the spin precession for strongly self-gravitating bodies. We constrain the relativistic treatment of the pulsar polarization m
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Chen, Qiang, Yong Zhao, and Lixia Yan. "X-ray Pulsar Signal Denoising Based on Variational Mode Decomposition." Entropy 23, no. 9 (2021): 1181. http://dx.doi.org/10.3390/e23091181.

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Pulsars, especially X-ray pulsars detectable for small-size detectors, are highly accurate natural clocks suggesting potential applications such as interplanetary navigation control. Due to various complex cosmic background noise, the original pulsar signals, namely photon sequences, observed by detectors have low signal-to-noise ratios (SNRs) that obstruct the practical uses. This paper presents the pulsar denoising strategy developed based on the variational mode decomposition (VMD) approach. It is actually the initial work of our interplanetary navigation control research. The original puls
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Liang, Ruixing. "Contribution of Pulsars to the AMS-02 Positron Excess." Journal of Physics: Conference Series 2346, no. 1 (2022): 012008. http://dx.doi.org/10.1088/1742-6596/2346/1/012008.

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Abstract In this paper we tested the pulsar interpretation of positron excess, measured by the Alpha Magnetic Spectrometer-02 (AMS-02), by using the list of objects from the Australian National Telescope Facility pulsar catalog (ATNF catalog). We take into account in the calculation the energy losses that cosmic rays encounter when propagating through the Galaxy and we included the secondary positrons which are produced through the collision of cosmic rays against the atoms of the interstellar space. We firstly hypothesized the possibility of a single pulsar contributing to the positron flux.
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Malov, IF. "Two Types of Pulsar." Australian Journal of Physics 40, no. 6 (1987): 731. http://dx.doi.org/10.1071/ph870731.

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Some arguments for the subdivision of pulsars into two classes are considered: (i) short-period pulsars described by Smith's (1973) model and (ii) long-period pulsars for which the hollow-cone model is valid. The data for PSR 1937 + 21 (P = 1�56 ms) are in good agreement with this conception, this pulsar being a typical representative of the first group of pulsars.
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Ulyanov, O. M. "HISTORY OF LOW-FREQUENCY RESEARCH OF PULSARS." Radio physics and radio astronomy 26, no. 2 (2021): 130–47. http://dx.doi.org/10.15407/rpra26.02.130.

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Purpose: The main most pronounced events, which occurred in the initial period of the pulsars’ study at the decameter wavelength range, are presented. The example of the main scientific problems, which were formulated at the very beginning of pulsar research, shows how the emphasis and priorities of these studies have been changing over time, which tasks have finally been solved, and which are still waiting to be solved. It is shown how the ongoing modernization of the UTR-2 radio telescope have allowed to acquire new qualities in astrophysical research being made with this radio telescope and
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Zhou, Shiqi, Erbil Gügercinoğlu, Jianping Yuan, Mingyu Ge, and Cong Yu. "Pulsar Glitches: A Review." Universe 8, no. 12 (2022): 641. http://dx.doi.org/10.3390/universe8120641.

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∼6% of all known pulsars have been observed to exhibit sudden spin-up events, known as glitches. For more than fifty years, these phenomena have played an important role in helping to understand pulsar (astro)physics. Based on the review of pulsar glitches search method, the progress made in observations in recent years is summarized, including the achievements obtained by Chinese telescopes. Glitching pulsars demonstrate great diversity of behaviours, which can be broadly classified into four categories: normal glitches, slow glitches, glitches with delayed spin-ups, and anti-glitches. The ma
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Slee, OB, SK Alurkar, and AD Bobra. "Flux Densities, Spectra and Variability of Pulsars at Metre Wavelengths." Australian Journal of Physics 39, no. 1 (1986): 103. http://dx.doi.org/10.1071/ph860103.

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We present the results of two-frequency flux density measurements of 74 pulsars with the Culgoora circular array. We show that the spectral index of a typical pulsar steepens markedly from 80 to 1400 MHz, but we found no significant relationship between the metre-wave spectral index and the published pulsar parameters
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Ma, Zhi, Zi-Yi You, Ying Liu, et al. "A Preliminary Study of Large Scale Pulsar Candidate Sifting Based on Parallel Hybrid Clustering." Universe 8, no. 9 (2022): 461. http://dx.doi.org/10.3390/universe8090461.

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Pulsar candidate sifting is an essential part of pulsar analysis pipelines for discovering new pulsars. To solve the problem of data mining of a large number of pulsar data using a Five-hundred-meter Aperture Spherical radio Telescope (FAST), a parallel pulsar candidate sifting algorithm based on semi-supervised clustering is proposed, which adopts a hybrid clustering scheme based on density hierarchy and the partition method, combined with a Spark-based parallel model and a sliding window-based partition strategy. Experiments on the two datasets, HTRU (The High Time-Resolution Universe Survey
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Malov, I. F., and O. I. Malov. "On the Evolution of Angles between the Magnetic Moment and the Axis of Rotation in Radio Pulsars." Астрономический журнал 100, no. 2 (2023): 206–18. http://dx.doi.org/10.31857/s0004629923020068.

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Three methods were used to calculate the angles β between the magnetic moment and the axis of rotation of central neutron stars for 307 known radio pulsars. There is no explicit statistical dependence of the calculated angles β on the kinematic age of pulsars. It follows from this that either the indicated angle does not change noticeably with the age of the pulsar, or pulsars are born with an arbitrary inclination angle.
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Thèses sur le sujet "Pulsar: generale"

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RIGOSELLI, MICHELA. "X-ray emission from the magnetic polar caps of old rotation-powered pulsars." Doctoral thesis, Università degli Studi di Milano-Bicocca, 2020. http://hdl.handle.net/10281/277373.

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Le stelle di neutroni sono il risultato dell'evoluzione di stelle massive dopo l'esplosione di supernova. Il progetto di questa Tesi di PhD consiste nello studio dell'emissione di raggi X da parte di stelle di neutroni isolate di età superiore a 100000 anni. Sono stati analizzati dati provenienti dal satellite XMM-Newton (ESA). Per estrarre la miglior informazione possibile dai dati, ho implementato un metodo di maximum likelihood (ML) e l'ho utilizzato per estrarre spettri e profili pulsati di pulsar vecchie in banda X, che poi sono stati analizzati con raffinati di emissione. La Tesi è strut
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Venter, Christo. "Millisecond pulsars and pulsar wind nebulae as sources of gamma rays and cosmic rays / C. Venter." Thesis, North-West University, 2008. http://hdl.handle.net/10394/2067.

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Venter, Christo. "The effect of general relativistic frame dragging on millisecond pulsar visibility for the H.E.S.S. telescope / C. Venter." Thesis, North-West University, 2004. http://hdl.handle.net/10394/215.

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It has been noted by several authors that General Relativistic frame dragging in rotating neutron stars is a first order effect which has to be included in a self-consistent model of pulsar magnetospheric structure and associated radiation and transport processes. To this end, I undertook the present study with the aim of investigating the effect of General Relativity (GR) on millisecond pulsar (MSP) visibility. I developed a numerical code for simulating a pulsar magnetosphere, incorporating the GR-corrected expressions for the electric potential and field. I included curvature radiation (CR)
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Gralla, Samuel E., Alexandru Lupsasca, and Alexander Philippov. "PULSAR MAGNETOSPHERES: BEYOND THE FLAT SPACETIME DIPOLE." IOP PUBLISHING LTD, 2016. http://hdl.handle.net/10150/622675.

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Most studies of the pulsar magnetosphere have assumed a pure magnetic dipole in flat spacetime. However, recent work suggests that the effects of general relativity are in fact of vital importance and that realistic pulsar magnetic fields will have a significant nondipolar component. We introduce a general analytical method for studying the axisymmetric force-free magnetosphere of a slowly rotating star of arbitrary magnetic field, mass, radius, and moment of inertia, including all the effects of general relativity. We confirm that spacelike current is generically present in the polar caps (su
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Van, Straten Willem Herman Bernadus, and straten@astron nl. "High-Precision timing and polarimeter of PSR JO437-4715." Swinburne University of Technology. School of Biophysical Sciences and electrical Engineering, 2003. http://adt.lib.swin.edu.au./public/adt-VSWT20040311.123754.

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This thesis reports on the recent results of a continuing, high-precision pulsar timing project, currently focused on the nearby, binary millisecond pulsar, PSR J0437_4715. Pulse arrival time analysis has yielded a remarkable series of constraints on the physical parameters of this system and evidence for the distortion of space-time as predicted by the General Theory of Relativity. Owing to the proximity of the PSR J0437_4715 system, relative changes in the positions of the Earth and pulsar result in both annual and secular evolution of the line of sight to the pulsar. Although the changes ar
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Gralla, Samuel E., Alexandru Lupsasca, and Alexander Philippov. "Inclined Pulsar Magnetospheres in General Relativity: Polar Caps for the Dipole, Quadrudipole, and Beyond." IOP PUBLISHING LTD, 2017. http://hdl.handle.net/10150/626414.

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In the canonical model of a pulsar, rotational energy is transmitted through the surrounding plasma via two electrical circuits, each connecting to the star over a small region known as a "polar cap." For a dipole-magnetized star, the polar caps coincide with the magnetic poles (hence the name), but in general, they can occur at any place and take any shape. In light of their crucial importance to most models of pulsar emission (from radio to X-ray to wind), we develop a general technique for determining polar cap properties. We consider a perfectly conducting star surrounded by a force-free m
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CUOFANO, Carmine. "Magnetic fields generated by r-modes in accreting millisecond pulsars." Doctoral thesis, Università degli studi di Ferrara, 2010. http://hdl.handle.net/11392/2389313.

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In rotating neutron stars the existence of the Coriolis force allows the presence of the so-called Rossby oscillations (r-modes) which are known to be unstable to emission of gravitational waves. In the Thesis, for the first time, we introduce the magnetic damping rate in the evolution equations of r-modes. We show that r-modes can generate very strong toroidal fields in the core of accreting millisecond pulsars by inducing differential rotation. We shortly discuss the instabilities of the generated magnetic field and its long time-scale evolution in order to clarify how the generated mag
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Icdem, Burcin. "Viscous Time Scale In Accreting Powered Pulsars And Anomalous X-ray Pulsars." Master's thesis, METU, 2011. http://etd.lib.metu.edu.tr/upload/12613373/index.pdf.

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In this thesis we analyse X-ray data of accretion powered low mass and high mass X-ray binaries to understand the nature of their accretion mechanisms by searching for some clues of viscous time-scales of their accretion discs, if they have, in their low frequency power density spectra created from their long-term X-ray observations, or by doing pulse timing analysis with much shorter X-ray data to detect the effects of torque fluctuations caused by the accreting material on the pulsar. The low mass and high mass X-ray binaries we analysed have breaks in their power density spectra, which are
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Yuen, Rai. "Pulsar Magnetosphere Revisited: Emission Geometry and the Synthesis of the Vacuum-Dipole and the Rotating-Magnetosphere Models." Thesis, The University of Sydney, 2013. http://hdl.handle.net/2123/10011.

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We reconsider the vacuum-dipole model (VDM) and the corotating-magnetosphere model (CMM) for pulsar electrodynamics. Both the VDM and the CMM are fatally flawed as stand-alone models. The former model is used for deriving certain pulsar parameters, such as the surface magnetic field strength and characteristic age, but it lacks the plasma required to emit the observed radiation. The latter model introduces important concepts, such as the Goldreich-Julian charge density and corotation electric field, which form the basis for more detailed models, but it neglects the inductive electric field. Wh
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Bernard, Franck. "Anesthesie generale pour cesarienne : comparaison, par oxymetrie pulsee, de deux methodes de preoxygenation." Rennes 1, 1992. http://www.theses.fr/1992REN1M051.

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Livres sur le sujet "Pulsar: generale"

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Lyne, A. G. Pulsar astronomy. 2nd ed. Cambridge University Press, 1998.

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Lyne, A. G. Pulsar astronomy. Cambridge University Press, 1989.

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Marquand, John P. H.M. Pulham, Esquire. Academy Chicago Publishers, 1986.

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Francisco Martínez de la Rosa. Hernán Pérez del Pulgar, el de las hazañas. Caja General de Ahorros de Granada, 1991.

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Śekhāvata, Sumana. Pulisa praśāsana: Rājasthāna Pulisa Mahānideśaka Kāryālaya ke sandarbha meṃ. Mahārājā Mānasiṃha Pustaka Prakāśa Śodha Kendra, 2009.

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Śekhāvata, Sumana. Pulisa praśāsana: Rājasthāna Pulisa Mahānideśaka Kāryālaya ke sandarbha meṃ. Mahārājā Mānasiṃha Pustaka Prakāśa Śodha Kendra, 2009.

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Śekhāvata, Sumana. Pulisa praśāsana: Rājasthāna Pulisa Mahānideśaka Kāryālaya ke sandarbha meṃ. Mahārājā Mānasiṃha Pustaka Prakāśa Śodha Kendra, 2009.

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Śekhāvata, Sumana. Pulisa praśāsana: Rājasthāna Pulisa Mahānideśaka Kāryālaya ke sandarbha meṃ. Mahārājā Mānasiṃha Pustaka Prakāśa Śodha Kendra, 2009.

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1967-, Arzoumanian Zaven, Hooft F. van der, and Heuvel, Edward Peter Jacobus van den, 1940-, eds. Pulsar timing, general relativity, and the internal structure of neutron stars: Proceedings of the colloquium, Amsterdam, 24-27 September 1996. Royal Netherlands Academy of Arts and Sciences, 1999.

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1966-, Camilo Fernando, and Gaensler Bryan M, eds. Young neutron stars and their environments: Proceedings of the 218th Symposium of the International Astronomical Union held during the IAU General Assembly XXV, Sydney, Australia, 14-17 July 2003. Published on behalf of the International Astronomical Union by Astronomical Society of the Pacific, 2004.

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Chapitres de livres sur le sujet "Pulsar: generale"

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Burgay, Marta, Delphine Perrodin, and Andrea Possenti. "General Relativity Measurements from Pulsars." In Timing Neutron Stars: Pulsations, Oscillations and Explosions. Springer Berlin Heidelberg, 2020. http://dx.doi.org/10.1007/978-3-662-62110-3_2.

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Sanayei, Ali, and Otto E. Rössler. "Taffy-Puller, Topology and General Relativity." In Emergence, Complexity and Computation. Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-06781-0_20.

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Abbott, M. A. "Monitoring Oxygen Saturation Levels in the Early Recovery Phase of General Anaesthesia." In Pulse Oximetry. Springer London, 1986. http://dx.doi.org/10.1007/978-1-4471-1423-9_21.

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Thornton, J. A. "Use of Oximetry in Dental Out-patients Undergoing Controlled Sedation and General Anaesthesia." In Pulse Oximetry. Springer London, 1986. http://dx.doi.org/10.1007/978-1-4471-1423-9_17.

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Wu, Jianjun, Jian Li, Yuanzheng Zhao, and Yu Zhang. "Numerical Simulation of the Nanosecond Laser Ablation of Al Propellant." In Numerical Simulation of Pulsed Plasma Thruster. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-7958-1_4.

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AbstractPulsed plasma thrusters (PPTs) using gaseous propellants (Ziemer and Choueiri in Is the gas-fed PPT an electromagnetic accelerator an investigation using measured performance. AIAA 99–2289, 1999; Ziemer et al. in Performance characterization of a high efficiency gas-fed pulsed plasma thruster. AIAA-97–2925, 1997; Ziemer in Performance scaling of gas-fed pulsed plasma thrusters. Princeton University, 2001; Ziemer and Petr in Performance of gas fed pulsed plasma thrusters using water vapour propellant. AIAA 2002–4273, 2002) typically far outperform those using solid propellants in terms
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Ogawa, Rei. "Long-Pulsed 1064 nm Nd:YAG Laser Treatment for Keloids and Hypertrophic Scars." In Textbook on Scar Management. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-44766-3_32.

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AbstractThere are many therapeutic options for keloids and hypertrophic scars, including surgery, radiation, corticosteroids, 5-fluorouracil, cryotherapy, laser therapy, anti-allergy agents, anti-inflammatory agents, bleaching creams, and make-up therapies. In terms of laser therapy, we have used long-pulsed 1064 nm Nd:YAG laser to treat keloids and hypertrophic scars. This laser was developed for the treatment of vascular diseases, including inflammatory scars that exhibit neovascularization. The depth that is reached is determined by the spot size, the laser power, and the fluence: the large
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Kirov, K. "Pulsed Surface Wave Sustained Discharges: Modelling." In Advanced Technologies Based on Wave and Beam Generated Plasmas. Springer Netherlands, 1999. http://dx.doi.org/10.1007/978-94-017-0633-9_40.

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Seeman, J., D. Schulte, J. P. Delahaye, et al. "Design and Principles of Linear Accelerators and Colliders." In Particle Physics Reference Library. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-34245-6_7.

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AbstractLinear accelerators (linacs) use alternating radiofrequency (RF) electromagnetic fields to accelerate charged particles in a straight line. Linacs were invented about 95 years ago and have seen many significant technical innovations since. A wide range of particle beams have been accelerated with linacs including beams of electrons, positrons, protons, antiprotons, and heavy ions. Linac parameter possibilities include pulsed versus continuous wave, low and high beam powers, low and high repetition rates, low transverse emittance beams, short bunches with small energy spreads, and accel
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Díaz, Rodolfo E. "On the Sharpest Possible Pulse that a Finite Radiator Can Generate." In Ultra-Wideband, Short-Pulse Electromagnetics. Springer US, 1993. http://dx.doi.org/10.1007/978-1-4615-2870-8_44.

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Venter, C., and O. C. De Jager. "Spectral Constraints for Millisecond Pulsars Due to General Relativistic Frame Dragging." In Multiwavelength Approach to Unidentified Gamma-Ray Sources. Springer Netherlands, 2005. http://dx.doi.org/10.1007/1-4020-3881-x_42.

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Actes de conférences sur le sujet "Pulsar: generale"

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Shahaj, Andi, Alexander C. B. Greenwood, Jackson Russett, et al. "Pulsed-Diode-Pumped, Fiber-Based Polarization-Entangled Photon Source." In CLEO: Applications and Technology. Optica Publishing Group, 2024. http://dx.doi.org/10.1364/cleo_at.2024.ath4g.6.

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We demonstrate a low-cost, fiber-based, pulsed entanglement source, using periodically-poled silica fiber and a pulsed 780nm diode laser, which generates ~1ns pulses of polarization-entangled photon pairs at up to 60MHz, 0.15 pairs/pulse.
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Mahesh, Tirumalasetty Panduranga, Yuki Torii Chew, Seiji Sugawa, et al. "Toward High-Fidelity Ultrafast Excitation of Atoms to Rydberg States." In CLEO: Applications and Technology. Optica Publishing Group, 2024. http://dx.doi.org/10.1364/cleo_at.2024.jw2a.116.

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We are developing frequency conversion system using non-linear optics to generate 480 nm picosecond pulsed laser for ultrafast Rydberg excitation. This new system outperforms a previously-used commercial device in terms of pulse-to-pulse fluctuation and energy.
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Bachelder, Edward, Bimal Aponso, and Martine Godfroy. "Characterization of Pilot Technique." In Vertical Flight Society 73rd Annual Forum & Technology Display. The Vertical Flight Society, 2017. http://dx.doi.org/10.4050/f-0073-2017-12045.

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Skilled pilots often use pulse control when controlling higher order (i.e. acceleration-command) vehicle dynamics. Pulsing does not produce a stick response that resembles what the human Crossover Model (Ref.1) predicts. The Crossover Model (CM) assumes the pilot provides compensation necessary (lead or lag) such that the suite of display-human-vehicle approximates an integrator in the region of crossover frequency. However, it is shown that the CM does appear to drive the pilots' pulsing behavior in a very predictable manner. Roughly speaking, the pilot generates pulses such that the area und
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Sergeev, S., and Yu Kazakevich. "Fast implementation of coherent dispersion compensation." In Modern astronomy: from the Early Universe to exoplanets and black holes. Special Astrophysical Observatory of the Russian Academy of Sciences, 2024. https://doi.org/10.26119/vak2024.175.

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The interstellar medium consists of gas and dust components, almost all of which are completely transparent at centimeter wavelengths. The main cause of radio wave scattering in the interstellar medium is ionized gas—plasma. The behavior of radio waves propagating through such a medium is described by the dispersion equation in a rarefied plasma. The plasma frequency is generally a function of position and time, because it depends on the electron density along the line of sight. The dispersion measure physically represents a column of free electrons between a pulsar and the Earth. Thus, the di
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Sozzi, Michele, Katia Tragni, Stefano Selleri, et al. "Picosecond and Nanosecond Pulsed Laser Ablation of Aluminium Foil." In ASME 2013 International Manufacturing Science and Engineering Conference collocated with the 41st North American Manufacturing Research Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/msec2013-1189.

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The pulsed laser ablation of 20 micron thick aluminium foil is investigated by exposing moving samples to picosecond pulses of wavelength 1064nm and nanosecond pulses of wavelength 515nm and 1030nm. Ablation thresholds and depths are determined for a range of conditions using an optical microscope and 3D optical profiler. Complete three-dimensional crater profiles for single and multiple pulses are presented. The results reveal a variation in ablation threshold with wavelength, pulse duration and the number of pulses; a large reduction is observed for picosecond pulses. Ablation rates per puls
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Maiorano, M., F. De Paolis, A. A. Nucita, and A. Franco. "Advantages of including globular cluster millisecond pulsars in Pulsar Timing Arrays." In Proceedings of the MG16 Meeting on General Relativity. WORLD SCIENTIFIC, 2023. http://dx.doi.org/10.1142/9789811269776_0314.

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Lei, Zhu. "Generation of femtosecond pulse trains from a short cavity dye laser pumped by cw and pulsed laser." In OSA Annual Meeting. Optica Publishing Group, 1991. http://dx.doi.org/10.1364/oam.1991.wr3.

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A short cavity dye laser (SCDL) as an efficient way to generate ultrashort pulses was first used by Roess.1 Recently, SCDL mixed with the saturable absorber DODCI pumped by pulsed laser had been studied theoretically and experimently.2,3 Here, it was found that under strong interactions within three bodies of laser field, DODCI and dye molecules, femtosecond pulse trains could be generated in the proper conditions.
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Ghabi, Ahlem, Toufik Boushaki, Pablo Escot Bocanegra, and Eric Robert. "Experimental Investigation on Microsecond Pulsed Plasma Supported Biogas Combustion." In ASME Turbo Expo 2023: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2023. http://dx.doi.org/10.1115/gt2023-101315.

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Abstract This paper evaluates the effect of a microsecond pulsed plasma (MPP) on the stabilization and emission characteristics of non-premixed biogas/air flames with various CO2 contents. The MPP is generated by a unique DC-pulsed power generator providing high voltage (HV) pulses over a wide range of pulse repetition frequencies. The burner configuration is made up of two concentric tubes in which a swirler is placed inside the annular part, ensuring the oxidizer’s rotation. The central tube delivers the fuel through an injector placed close to the burner exit. Electrical diagnostics, includ
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Borgström, S., E. Fill, J. Larsson, T. Starczewski, S. Svanberg, and C. G. Wahlström. "X-Ray Spectroscopic Investigation of Optical-Field Ionized Plasmas." In High Resolution Fourier Transform Spectroscopy. Optica Publishing Group, 1994. http://dx.doi.org/10.1364/hrfts.1994.wc3.

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Soft X-ray spectra of N, O, C, S, He and Ar ions generated by optical-field ionization with fs pulses are reported. The experiments were carried out by focusing pulses of the high-power Ti:Sapphire laser of the Lund Institute of Technology (wavelength 800 nm, pulse duration 150 fs, pulse energy 150 mJ) to a 60 µm diameter spot below a pulsed gas nozzle or within a windowless pulsed gas cell, using N2, O2, CO2, SF6, He and Ar as parent gases.
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Bennett, G. T., E. Fry, and F. Sogandares. "Temporal response of laser-induced photoacoustic pulses in H2O, measured as a function of incident beam energy." In OSA Annual Meeting. Optica Publishing Group, 1985. http://dx.doi.org/10.1364/oam.1985.tud5.

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The second harmonic, 530 nm, of a pulsed YAG laser was used to generate photoacoustic pulses in water and water doped with potassium permanganate. The photodeflection technique1 was used to measure the pressure pulse shape as a function of time. Studies were made for a range of incident pulse energies from several microjoules to the onset of dielectric breakdown in water. The discussion compares the observed time responses to the theory of photoacoustic pulses by Lai and Young.2
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Rapports d'organisations sur le sujet "Pulsar: generale"

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Ajuha, S. A Full Mesh ATCA-based General Purpose Data Processing Board (Pulsar II). Office of Scientific and Technical Information (OSTI), 2017. http://dx.doi.org/10.2172/1431570.

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Marcillo Calderón, Cristian Fernando, José Carlos Sánchez Vega, and José Andrés Uribe Múnera. Aneurisma de aorta abdominal: conceptos claves para el médico general. Facultad de Medicina Universidad de Antioquia, 2023. http://dx.doi.org/10.59473/medudea.pc.2023.20.

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Paciente de 60 años, sexo masculino, quien consultó por dolor lumbar continuo de vieja data, el cual aumentaba con los movimientos del tronco, al pararse, y agacharse. Como antecedentes: hipertensión arterial con tratamiento adecuado y tabaquismo activo (30 paquete/años). Al examen físico con signos vitales normales, abdomen sin alteraciones importantes, pulsos presentes en las 4 extremidades, dolor al palpar región lumbar bilateral.
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Thomas, Richard L. General Atomics Pulsed Power Capacitor Comparison Test Report. Defense Technical Information Center, 2015. http://dx.doi.org/10.21236/ada625771.

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Fiedler, Curtis J. The Interferometric Detection of Ultrafast Pulses of Laser Generated Ultrasound. Defense Technical Information Center, 1996. http://dx.doi.org/10.21236/ada312079.

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Li, Richard. LegalOne Pulse: Intellectual Property Special Edition for BIP Asia Forum 2024. LegalOne Global Limited, 2024. https://doi.org/10.62436/a-1733154203224.

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LegalOne Pulse is more than just a special edition publication. It's a trusted resource that provides senior executives, general counsel, and decision-makers with groundbreaking insights and exclusive reviews of commercial deals, dispute cases, and intellectual property matters. LegalOne Pulse delves into the latest business trends, challenges, and solutions through high-quality reports, articles, and practitioners’ perspectives by lawyers and industry experts, making it indispensable for business professionals, legal executives, and industry leaders. This special edition of LegalOne Pulse wil
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Chin, A. H., R. W. Schoenlein, and T. E. Glover. Ultrashort hard x-ray pulses generated by 90 degrees Thomson scattering. Office of Scientific and Technical Information (OSTI), 1997. http://dx.doi.org/10.2172/603713.

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Kyrala, G. A., R. D. Fulton, J. A. Cobble, G. T. Schappert, and A. J. Taylor. Diagnostics of high-brightness short-pulse lasers and the plasmas they generate. Office of Scientific and Technical Information (OSTI), 1994. http://dx.doi.org/10.2172/10120583.

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Glidden, Steven C., Howard D. Sanders, John B. Greenly, and Daniel L. Dongwoo. Pulsed, Inductively Generated, Streaming Plasma Ion Source for Heavy Ion Fusion Linacs. Office of Scientific and Technical Information (OSTI), 2006. http://dx.doi.org/10.2172/900203.

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Leonov, Sergey. Waves of Electric Charge Generated by Pulse Corona of Alternating Polarity. Office of Scientific and Technical Information (OSTI), 2023. http://dx.doi.org/10.2172/2229567.

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Selvaraju, Ragul, Hari Shankar, and Hariharan Sankarasubramanian. Metamodel Generation for Frontal Crash Scenario of a Passenger Car. SAE International, 2020. http://dx.doi.org/10.4271/2020-28-0504.

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A frontal impact scenario was simulated using a Finite Element Model of a Hybrid III 50th percentile male (LSTC, Livermore CA) along with seatbelt, steering system and driver airbags. The boundary conditions included acceleration pulse to the seat and the outputs including injury measures in terms of Head Injury Criterion (HIC), Normalized Neck Injury Criterion (NIJ) and Chest Severity Index (CSI) were extracted from the simulations. The kinematics of the Hybrid III were validated against the kinematics of post mortem human surrogates (PMHS) available in the literature. Using the validated set
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