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Showing 1 to 15 of 15 for “"KDP"”.
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Machining-induced damage mechanisms in KDP crystals
… phosphate (KH2PO4) crystals, abbreviated as KDP crystals, are widely used in some high-tech fields, including optical uniformity, laser frequency conversion, high-speed Q-switching, because KDP possesses excellent physical properties, such as superior photoelectric/piezoelectric capability, …
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Context, Opportunities and Threats: A Comparative Analysis of the KDP and the PUK in the Kurdistan Region in Iraq
… influenced the Kurdish political agents, the KDP and the PUK’s, mobilisation strategies since 1958. This thesis shows that there is a dialectical relationship between contemporary social movement theories and political contextual factors, and reveals that together they offer comprehensive …
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Operational Use of Specific Differential Phase Shift in Dual Polarization Radars
… this research focused on determining if KDP is strong enough of a stand-alone product for meteorologists to use in weather warning decision-making. Radar and observation data from 17 convective storms and 8 locations during two land-falling tropical storms were studied. It was shown for …
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Lightning Prediction with Deep Learning at Varying Temporal and Spatial Scales
… be quantified using specific differential phase (KDP ), at temporal scales of seconds with a fully digital phased array radar. I developed three deep learning models (BoltCast, LaunchCast, and HorusCast), investigating machine learning’s ability to generate lightning probabilities or its related …
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Untersuchung der strukturellen Phasenübergänge und Domänenbildung in den ferroischen Modellsubstanzen RbH 2 PO 4 und RbD 2 PO 4
… A(H,D)2XO4 (A=K,Rb,Cs,Tl and X=P,As). On KDP (KH2PO4), the root member of the family, Busch and Scherrer discovered in 1935 the ferroelectric behaviour. A rich number of works concerning the ferroelectric - paraelectric phase transition of KDP investigated by a great variety of methods …
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A semi-classical model of proton tunnelling in hydrogen-bonded compounds
… this crystal. c) Potassium Dihydrogen Phosphate (KDP). The crystallographic and infrared spectroscopic data for KDP and DKDP are interpreted consistently using the double Norse potential. The bare single-particle tunnelling frequency Ω is estimated to be 320 ± 10 cm⁻¹ and the overtone band at 4600 …
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The transmission characteristics of some optical crystals in the extreme ultraviolet
… MgF₂, NaF, LaF₃, SrF₂, BaF₂, BeO, Al₂O₃, KD*P, KDP, ADP, NaCl, NdF₃, KBr, CdF₃ and PrF₃. The techniques employed in the experiment and the data obtained will be presented.
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Two quantum photoconductivity in potassium iodide
… crystals of KI. A Q-switched ruby laser and a KDP harmonic generator were used to produce light pulses whose quantum energy is more than half the band gap energy. The phbtbresponse in KI depends upon the square of the incident light intensity. Since the photo carriers are generated nearly …
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Cross-validation of spaceborne radar and ground polarimetric radar observations
… state and specific differential phase (Kdp) are determined along the PR beam from GR measurements, and a theoretical relationship is used to determine the expected specific attenuation along the space-earth path at Ku-band frequency from these measurements. A theoretical k-Kdp …
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Binäre und Ternäre Verbindungen der Platinmetalle Palladium und Rhodium mit Tellur und Halogenen. Präparationen und strukturelle Charakterisierung.
… Te2- und I- bilden gemeinsam geordnet eine kdp, PdIII <br>ist verzerrt oktaedrisch von je 4 Te- und 2 I-Atomen umgeben. Theoretische Berechnungen von Whangbo <br>ließen 1-dim Leitfähigkeit erwarten. Impedanzspektroskopie an Preßlingen und an in [001]-Richtung <br>kontaktierten Einkristallen …
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Fusion of observations from C-band polarimetric radar and S-band profiler radar during a convective storm
… of specific differential propagation phase (Kdp) were studied to identify the exact location (range gates) containing melting ice particles. An attenuation correction coefficient for melting ice hydrometeors was estimated, and a piecewise attenuation correction procedure was implemented to …
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Phonon scattering by ferroelectric domain walls in potassium dihydrogen phosphate
… by ferroelectric domain walls in KH2P04 (KDP) using thermal conductivity and phonon imaging measurements of samples in both single-domain (poled) and multidomain states. Domains were eliminated by applying a 2- 3kV /em field using evaporated electrodes. Phonon images of a poled (001) …
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Kurdish Politics in the Cauldron of the Middle East: Lessons from the Kurdish Regional Government (KRG) of Iraq from Post-Invasion 2003 to the 2017 Independence Referendum
… ruling parties, the Kurdistan Democratic Party (KDP) and the Patriotic Union of Kurdistan (PUK). It explains how both parties maintain power and rule the region. The thesis looks at Kurdish politics in post-2003 Iraq and examines the idea of consociationalism to address the approaches used to …
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Control of chiral optical and spin properties in low-dimensional perovskites
… of magnitude higher than those of conventional KDP crystals and unprecedented circularly polarized SHG ratios. Density functional theory calculations elucidate mechanistic insights through the analysis of Bir–Aronov–Pikus and D'yakonov–Perel' spin relaxation pathways. In Chapter 3, we …