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Journal articles on the topic 'Expansion phase'

Author: Grafiati

Published: 8 June 2024

Last updated: 31 July 2025

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1

Partamies, N., L. Juusola, E. Tanskanen, and K. Kauristie. "Statistical properties of substorms during different storm and solar cycle phases." Annales Geophysicae 31, no. 2 (2013): 349–58. http://dx.doi.org/10.5194/angeo-31-349-2013.

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Abstract. Substorm properties during different storm phases have been studied using an automated recognition of substorm and storm phases in the auroral electrojet (AL) and ring current (Dst) index data from 1995–2009. The large number of events (about 500 storms and 15 000 substorms) provides statistically reliable distributions, average behaviour and long time series of simple parameters, such as durations and intensities. The phases of storms and substorms have been examined independently. Substorm phases have been further combined to single and multi-cycle events. The former consist of one

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Fay, Stéphane. "ΛCDM periodic cosmology". Monthly Notices of the Royal Astronomical Society 494, № 2 (2020): 2183–90. http://dx.doi.org/10.1093/mnras/staa940.

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ABSTRACT We examine the possibility that Universe expansion be made of some Λ-cold dark matter (ΛCDM) expansions repeating periodically, separated by some inflation- and radiation-dominated phases. This so-called ΛCDM periodic cosmology is motivated by the possibility that inflation and the present phase of accelerated expansion be due to the same dark energy. Then, in a phase space showing the variation of matter density parameter Ωm with respect to this of the radiation Ωr, the curve Ωm(Ωr) looks like a closed trajectory that Universe could run through forever. In this case, the end of the e

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Pope, Michael Aidan. "Expansion, Reform, and Homogenisation." Church History and Religious Culture 104, no. 1 (2024): 95–117. http://dx.doi.org/10.1163/18712428-bja10065.

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Abstract This article argues that proselytising across the Iberian Atlantic during the early modern period occurred in three historical phases. The first such phase is one of expansion, in which many mass conversion took place without much attention to catechising (1492–1539). The second phase is reforming in nature, as debates on how best to educate the converted in their new faith developed (1540–1579). The third and final phase is homogenising, as the ways in which all the newly converted groups were expected to behave were consolidated around the image of the Old Christin nobility (1580–16

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Garcés, Gerardo, Guillermo Requena, Domonkos Tolnai, et al. "Thermal expansion behaviour of Long-Period Stacking Ordered (LPSO) phase." Revista de Metalurgia 51, no. 2 (2015): e043. http://dx.doi.org/10.3989/revmetalm.043.

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Varga, Tamas, Julianna L. Moats, Sergey V. Ushakov, and Alexandra Navrotsky. "Thermochemistry of A2M3O12 negative thermal expansion materials." Journal of Materials Research 22, no. 9 (2007): 2512–21. http://dx.doi.org/10.1557/jmr.2007.0311.

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The enthalpies of the monoclinic to orthorhombic transition for a series of A2M3O12 (A = Al, Cr, Fe, In, and Sc; M = Mo or W) compounds were measured by differential scanning calorimetry, and entropies of transition were estimated. The enthalpies of formation from the binary oxides at 25 °C for several A2M3O12 samples were obtained from drop solution calorimetry in molten 3Na2O·4MoO3 at 702 °C. The monoclinic and orthorhombic phases of Sc2Mo3O12 and Sc2W3O12 are the only phases that are enthalpically stable under ambient conditions. The enthalpies of formation from the oxides (ΔHf,ox) for orth

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Fukuda, Koichiro, and Hiroyuki Matsubara. "Anisotropic thermal expansion in yttrium silicate." Journal of Materials Research 18, no. 7 (2003): 1715–22. http://dx.doi.org/10.1557/jmr.2003.0236.

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In this study, crystals of Y2SiO5 were examined by high-temperature powder x-ray diffractometry to determine the changes in unit-cell dimensions with temperatures up to 1273 K for the X1 phase (the low-temperature phase, space group P121/c1) and 1473 K for the X2 phase (the high-temperature phase, space group I12/a1). The lattice deformations of both phases induced by thermal expansion were investigated by matrix algebra analysis to determine the directions and magnitudes of the principal distortions (λi, i = 1, 2, and 3). For the X1 phase, λ1 and λ2 invariably showed a positive thermal expans

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Dvorak, G. J. "Thermal Expansion of Elastic-Plastic Composite Materials." Journal of Applied Mechanics 53, no. 4 (1986): 737–43. http://dx.doi.org/10.1115/1.3171852.

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Exact relationships are derived between instantaneous overall thermal stress or strain vectors and instantaneous overall mechanical stiffness or compliance, for two binary composite systems in which one of the phases may deform plastically. Also, the local instantaneous thermal strain and stress concentration factors are related in an exact way to the corresponding mechanical concentration factors. The results depend on instantaneous thermoelastic constants and volume fractions of the phases. They are found for fibrous composites with two distinct elastically isotropic or transversely isotropi

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8

Navarro-Vargas, José Ricardo, Arturo José Parada-Baños, and Javier Eduardo Bejarano-Daza. "Hospital Universitario Nacional de Colombia's expansion." Revista de la Facultad de Medicina 70, no. 2 (2022): e106110. http://dx.doi.org/10.15446/revfacmed.v70n2.106110.

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The processes required to implement the phases of the of the Institutional and Academic Expansion Plan of the Hospital Universitario Nacional de Colombia (HUN) were presented as a priority in the work proposal of the Dean’s Office of the Faculty of Medicine of the Universidad Nacional de Colombia (UNAL) for the period 2020-2022. This plan was developed under the current administration of the faculty and the university, and its goal was to broaden the global concept of what was known as Phase II and is now known as the Expansion Phase.

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9

Allen, Simon, Rebecca J. Ward, Matthew R. Hampson, Richard K. B. Gover, and John S. O. Evans. "Structures and phase transitions of trigonal ZrMo2O8 and HfMo2O8." Acta Crystallographica Section B Structural Science 60, no. 1 (2004): 32–40. http://dx.doi.org/10.1107/s0108768103025138.

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This paper describes the structures, thermal-expansion properties and phase transitions of the trigonal forms of ZrMo2O8 and HfMo2O8. Both phases adopt a P\overline 3 m structure at room temperature and show positive thermal expansion. Both phases also undergo a displacive phase transition at high temperature (ZrMo2O8 at 487 K and HfMo2O8 at 463 K) to a higher-symmetry structure that has lower thermal expansion. The structure of the high-temperature α′-AMo2O8 form (A = Zr and Hf) has been refined from powder diffraction data in space group P\overline 3m1.

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10

Lyons, L. R., and C. Y. Huang. "Plasma sheet expansion at r = 15 - 22 RE: A recovery phase or expansion phase phenomenon?" Journal of Geophysical Research 99, A6 (1994): 10995. http://dx.doi.org/10.1029/93ja02720.

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11

Figueiredo, Ana S., Joana R. Loureiro, Sandra Macedo-Ribeiro, and Isabel Silveira. "Advances in Nucleotide Repeat Expansion Diseases: Transcription Gets in Phase." Cells 12, no. 6 (2023): 826. http://dx.doi.org/10.3390/cells12060826.

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Unstable DNA repeat expansions and insertions have been found to cause more than 50 neurodevelopmental, neurodegenerative, and neuromuscular disorders. One of the main hallmarks of repeat expansion diseases is the formation of abnormal RNA or protein aggregates in the neuronal cells of affected individuals. Recent evidence indicates that alterations of the dynamic or material properties of biomolecular condensates assembled by liquid/liquid phase separation are critical for the formation of these aggregates. This is a thermodynamically-driven and reversible local phenomenon that condenses macr

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Dvorak, George J., and Tungyang Chen. "Thermal Expansion of Three-Phase Composite Materials." Journal of Applied Mechanics 56, no. 2 (1989): 418–22. http://dx.doi.org/10.1115/1.3176099.

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Exact expressions are found for overall thermal expansion coefficients of a composite medium consisting of three perfectly-bonded transversely isotropic phases of cylindrical shape and arbitrary transverse geometry. The results show that macroscopic thermal expansion coefficients depend only on the thermoelastic constants and volume fractions of the phases, and on the overall compliance. The derivation is based on a decomposition procedure which indicates that spatially uniform elastic strain fields can be created in certain heterogeneous media by superposition of uniform phase thermal strains

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Chang, Yuan. "Financial Soundness Indicator, Financial Cycle, Credit Cycle and Business Cycle－Evidence from Taiwan." International Journal of Economics and Finance 8, no. 4 (2016): 166. http://dx.doi.org/10.5539/ijef.v8n4p166.

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<p>Business cycle is the repeated expansions (from trough to peak) and contractions (from peak to trough) of real economic activity. Credit cycle is the cyclical process of the bank credit, ranging from short/long-term, loan to enterprise and loan to individual. Financial cycle reflects ups and downs in asset prices and financial institution's balance sheet. This paper examines the linkage among cycles as well as their lead-lag relationship. Theoretically, credit cycle is one of reasons driving business cycle, and financial cycle is a fundamental cause of credit cycle. Based on Taiwan’s

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14

Smerzi, Augusto. "Semiclassical expansion theory in phase space." Physical Review A 52, no. 6 (1995): 4365–70. http://dx.doi.org/10.1103/physreva.52.4365.

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15

FISHMAN, R. S. "THE 1/z EXPANSION FOR MAGNETS AND JOSEPHSON ARRAYS." International Journal of Modern Physics B 06, no. 22 (1992): 3483–512. http://dx.doi.org/10.1142/s0217979292001596.

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Expansions in the inverse of the coordination number z have proved very useful in condensed matter physics. In this paper, we review the formalism of the 1/z expansion for magnetic systems and arrays of Josephson junctions. While many variations of the 1/z expansion have been developed, we concentrate on unrenormalized expansions, where the expansion coefficients are independent of the coordination number but may depend on dimension. The 1/z expansion has been used to study both first- and second-order phase transitions in a variety of systems, including the Ising and Heisenberg models, the Bl

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16

Nie, Shufang, Yang Liu, Qiong Liu, Meili Wang, and Hejin Wang. "Phase transitions and thermal expansion of BaCO3 and SrCO3 up to 1413 K." European Journal of Mineralogy 29, no. 3 (2017): 433–43. http://dx.doi.org/10.1127/ejm/2017/0029-2612.

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17

Zhou, Chao, Huixin Bao, Yoshitaka Matsushita, et al. "Thermal Expansion and Magnetostriction of Laves-Phase Alloys: Fingerprints of Ferrimagnetic Phase Transitions." Materials 12, no. 11 (2019): 1755. http://dx.doi.org/10.3390/ma12111755.

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The magneto–elastic coupling effect correlates to the changes of moment and lattice upon magnetic phase transition. Here, we report that, in the pseudo-binary Laves-phase Tb1-xDyxCo2 system (x = 0.0, 0.7, and 1.0), thermal expansion and magnetostriction can probe the ferrimagnetic transitions from cubic to rhombohedral phase (in TbCo2), from cubic to tetragonal phase (in DyCo2), and from cubic to rhombohedral then to tetragonal phase (in Tb0.3Dy0.7Co2). Furthermore, a Landau polynomial approach is employed to qualitatively investigate the thermal expansion upon the paramagnetic (cubic) to ferr

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18

Rossoni, Caroline, Aurélie Bardet, Birgit Geoerger, and Xavier Paoletti. "Sequential or combined designs for Phase I/II clinical trials? A simulation study." Clinical Trials 16, no. 6 (2019): 635–44. http://dx.doi.org/10.1177/1740774519872702.

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Background: Phase I and Phase II clinical trials aim at identifying a dose that is safe and active. Both phases are increasingly combined. For Phase I/II trials, two main types of designs are debated: a dose-escalation stage to select the maximum tolerated dose, followed by an expansion cohort to investigate its activity (dose-escalation followed by an expansion cohort), or a joint modelling to identify the best trade-off between toxicity and activity (efficacy–toxicity). We explore this question in the context of a paediatric Phase I/II platform trial. Methods: In series of simulations, we as

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RUAN, Y. Z., L. P. LI, X. L. HU, D. K. PENG, J. B. HU, and Y. H. ZHANG. "THERMAL EXPANSION COEFFICIENTS OF YBa2Cu3O7−x WITH ORTHORHOMBIC AND TETRAGONAL PHASES." Modern Physics Letters B 03, no. 04 (1989): 325–29. http://dx.doi.org/10.1142/s0217984989000522.

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Thermal expansion coefficients of YBa 2 Cu 3 O 7−x with the tetragonal and orthorhombic structural phases were measured by the method of differential parallel-plate capacitance. There exist anomalies near 205 K for orthorhombic phase and between 92–130K for tetragonal phase, respectively. We suggest that the former may be related to the lattice instability, indicating that there is a strong electron-phonon interaction; the latter may be result from the structural phase transition which damages the high T c superconductivity. In the meantime, a small jump of the thermal expansion coefficient at

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Hobley, Jonathan, Sergey Gorelik, Yutaka Kuge, et al. "Dynamics of Volume Expansion of De-Mixing Liquids after Pulsed IR Heating." Australian Journal of Chemistry 64, no. 9 (2011): 1274. http://dx.doi.org/10.1071/ch11171.

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Triethylamine (TEA)–water mixtures have a critical-temperature (Tc). Below Tc the mixture exists as one phase and above Tc it exists in two phases. The de-mixed volume is different to the mixed volume. A nanosecond pulsed-laser heated a TEA–water mixture so that it de-mixed. The resulting dynamics of volume expansion were monitored using interferometry. For T-jumps within the one phase region the dynamics of volume change were limited by the speed of sound. However, T-jumps between the one and two phase regions also manifested a slower volume change associated with the de-mixing process. After

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Siscoe, G. L., and H. E. Petschek. "On storm weakening during substorm expansion phase." Annales Geophysicae 15, no. 2 (1997): 211–16. http://dx.doi.org/10.1007/s00585-997-0211-2.

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Abstract. Iyemori and Rao recently presented evidence that the strength of a magnetic storm, as measured by -Dst, weakens, or its rate of growth slows, during the substorm expansion phase. Yet the expansion phase is known to inject energetic particles into the ring current, which should strengthen the storm. We propose to reconcile these apparently contradictory results by combining the virial theorem and a principle of energy partitioning between energy storage elements in a system with dissipation. As applied to the unloading description of the substorm expansion phase, the virial theorem st

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22

Simura, Rayko, Shohei Kawai, and Kazumasa Sugiyama. "Phase Transition and Thermal Expansion of Ba3RB3O9 (R = Sm–Yb, and Y)." High Temperature Materials and Processes 36, no. 8 (2017): 763–69. http://dx.doi.org/10.1515/htmp-2015-0290.

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AbstractHigh temperature powder X-ray diffraction measurements of Ba3RB3O9 (R=Sm–Yb, and Y) were carried out at temperatures ranging from room temperature to just below the corresponding melting temperatures (1,200–1,300 °C). No phase transition was found for the H-type phase (R$\overline 3 $) with R=Sm–Tb and the L-type phase (P63 cm) with R=Tm–Yb. On the other hand, phase transition from the L phase to the H phase was observed for R=Dy–Er, and Y at around 1,100–1,200 °C. The obtained axial thermal expansion coefficient (ATEC) of the a-axis was larger than that of the c-axis for the H phase,

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23

Weiss, Daniel Alexander. "The thermodynamic limit of an ideal Bose gas by asymptotic expansions and spectral ζ-functions". Journal of Mathematical Physics 63, № 12 (2022): 123302. http://dx.doi.org/10.1063/5.0114640.

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We analyze the thermodynamic limit—modeled as the open-trap limit of an isotropic harmonic potential—of an ideal, non-relativistic Bose gas with a special emphasis on the phenomenon of Bose–Einstein condensation. This is accomplished by the use of an asymptotic expansion of the grand potential, which is derived by ζ-regularization techniques. Herewith, we can show that the singularity structure of this expansion is directly interwoven with the phase structure of the system: In the non-condensation phase, the expansion has a form that resembles usual heat kernel expansions. By this, thermodynam

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Kim, Hyesoo, Ja Hong Goo, Hyo Sung Kwak, Seung Bae Hwang, and Gyung Ho Chung. "Correlation between Spot Sign and Intracranial Hemorrhage Expansion on Dual-Phase CT Angiography." Diagnostics 9, no. 4 (2019): 215. http://dx.doi.org/10.3390/diagnostics9040215.

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Purpose: Expansion of intracranial hemorrhage (ICH) is an important predictor of poor clinical outcome. ICH expansion can be predicted with a spot sign on computed tomographic angiography (CTA). We aimed to evaluate the correlation between spot signs on CTA and ICH expansion on dual-phase CTA. Methods: Patients with spontaneous ICH between January 2017 and April 2019 who underwent an initial CT, dual-phase CTA, and a subsequent CT were retrospectively identified. ICH expansion was defined as volume growth of >33% or >6 mL. We analyzed the presence and change in size of the spot sign in t

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YAMADA, Kou. "Expansion of Robust Stabilization Using Phase Information." Transactions of the Institute of Systems, Control and Information Engineers 12, no. 9 (1999): 522–30. http://dx.doi.org/10.5687/iscie.12.522.

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Pogorzelski, R. "Quadratic phase integration using a Chebyshev expansion." IEEE Transactions on Antennas and Propagation 33, no. 5 (1985): 563–66. http://dx.doi.org/10.1109/tap.1985.1143626.

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Jain, Ankur, and Ronald D. Vale. "RNA phase transitions in repeat expansion disorders." Nature 546, no. 7657 (2017): 243–47. http://dx.doi.org/10.1038/nature22386.

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Clyde, Dorothy. "Repeat expansion disorders — going through a phase." Nature Reviews Genetics 18, no. 8 (2017): 454–55. http://dx.doi.org/10.1038/nrg.2017.54.

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Noailles, L. D., H. h. Peng, J. Starkovich, and B. Dunn. "Thermal Expansion and Phase Formation of ZrW2O8Aerogels." Chemistry of Materials 16, no. 7 (2004): 1252–59. http://dx.doi.org/10.1021/cm034791q.

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Williamson, Calvin. "A phase cell cluster expansion for Φ34". Annals of Physics 175, № 1 (1987): 31–63. http://dx.doi.org/10.1016/0003-4916(87)90055-8.

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Cao, Weigang, He Zhu, Zhanning Liu, Jinxia Deng, Jun Chen, and Xianran Xing. "Phase transition and thermal expansion of Ho2W3O12." Inorganic Chemistry Communications 73 (November 2016): 111–14. http://dx.doi.org/10.1016/j.inoche.2016.10.022.

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Iasonos, Alexia, and John O’Quigley. "Dose Expansion Cohorts in Phase I Trials." Statistics in Biopharmaceutical Research 8, no. 2 (2016): 161–70. http://dx.doi.org/10.1080/19466315.2015.1135185.

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Klymenko, N. A., N. N. Galtsov, and A. I. Prokhvatilov. "Phase transition and thermal expansion of hexafluoroethane." Low Temperature Physics 37, no. 2 (2011): 163–68. http://dx.doi.org/10.1063/1.3556663.

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Malfliet, Annelies, Linda Stappers, and Jan Fransaer. "Synthesis and Characterization of Thermal Actuators Based on Composite Coatings with Phase Change Materials." Advances in Science and Technology 54 (September 2008): 143–51. http://dx.doi.org/10.4028/www.scientific.net/ast.54.143.

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Metal coatings with embedded phase change material (PCM) particles were made by electrolytic deposition. These composite coatings have useful thermo-mechanical properties for thermal actuators. The PCM particles which are homogeneously dispersed in the metal matrix provide a large thermal expansion of the composite at the phase change temperature. Since the metal matrix has a good thermal conductivity, it allows fast heating of the embedded PCM particles and hence fast actuation. In this study, paraffin and water were used as PCM in copper, zinc and nickel coatings. To embed PCM material in el

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Kozlovskii, Yuriy, Sergey Stankus, Rashid Khairulin, and Oleg Yatsuk. "Dilatometric Investigation of the Phase Transformations in ChS-139 Steel." Siberian Journal of Physics 8, no. 3 (2013): 159–62. http://dx.doi.org/10.54362/1818-7919-2013-8-3-159-162.

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The results of the dilatometric investigation of the phase transformations in ChS-139 steel over the temperature range from 20 to 1 000С are presented. The error in the coefficient of linear thermal expansion (TCLE) is (1.5–2)  10–7 К–1. The temperatures of the phase transformations, the changes of relative expansion on mutual austenite-martensite transitions, and TCLE of all phases are determined. An interpretation of a number of specific points in the temperature dependences of the properties is given

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Yu, Huifen, Liang Chen, Chang Zhou, and He Qi. "Negative Thermal Expansion Caused by the Antiferroelectric Phase Transition in Lead-Free Perovskite Ceramics." Crystals 13, no. 5 (2023): 751. http://dx.doi.org/10.3390/cryst13050751.

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Due to the structural stability and high adjustability of perovskite, lead-free perovskite ceramics are widely thought to be one of the most promising functional materials. In this work, an abnormal negative thermal expansion behavior with a linear expansion coefficient of −54.95 ppm/K is achieved in the (1-x)NaNbO3-xCaZrO3 system by driving the antiferroelectric phase transition from orthorhombic phase and tetragonal phase. The NTE mechanism is verified by temperature-dependent high-energy synchrotron X-ray diffraction, dielectric spectra, and Raman scattering spectroscopy. The relationship b

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Kaminiarz, André, Bart Krekelberg, and Frank Bremmer. "Expansion of Visual Space During Optokinetic Afternystagmus (OKAN)." Journal of Neurophysiology 99, no. 5 (2008): 2470–78. http://dx.doi.org/10.1152/jn.00017.2008.

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The mechanisms underlying visual perceptual stability are usually investigated using voluntary eye movements. In such studies, errors in perceptual stability during saccades and pursuit are commonly interpreted as mismatches between actual eye position and eye-position signals in the brain. The generality of this interpretation could in principle be tested by investigating spatial localization during reflexive eye movements whose kinematics are very similar to those of voluntary eye movements. Accordingly, in this study, we determined mislocalization of flashed visual targets during optokineti

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Menon, S. V. G. "Convergence of Coupling-Parameter Expansion-Based Solutions to Ornstein–Zernike Equation in Liquid State Theory." Condensed Matter 6, no. 3 (2021): 29. http://dx.doi.org/10.3390/condmat6030029.

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The objective of this paper is to investigate the convergence of coupling-parameter expansion-based solutions to the Ornstein–Zernike equation in liquid state theory. The analytically solved Baxter’s adhesive hard sphere model is analyzed first by using coupling-parameter expansion. It was found that the expansion provides accurate approximations to solutions—including the liquid-vapor phase diagram—in most parts of the phase plane. However, it fails to converge in the region where the model has only complex solutions. Similar analysis and results are obtained using analytical solutions within

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González-Silgo, C., C. Guzmán-Afonso, V. M. Sánchez-Fajardo, et al. "Polymorphism in Ho2(MoO4)3." Powder Diffraction 28, S2 (2013): S33—S40. http://dx.doi.org/10.1017/s0885715613001176.

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Two polymorphs of Holmium molybdate, known as β'-phase and γ-phase, were prepared by solid state reaction with different thermal treatments. These polycrystalline samples have been studied for the first time by X-ray thermodiffractometry from room temperature up to 1300 K. We found that the initial β'-phase undergoes a transition to a β-phase and then to a γ-phase. The γ (hydrated)-phase, turns to the γ (dehydrated)-phase and then to the β-phase. Each sequence involves a reversible and an irreversible phase transition for Ho2(MoO4)3. Both polymorphs have remarkable physical properties like non

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SHUKLA, SHAILESH, DEEPAK KUMAR, NITYA NATH SHUKLA, and RAJENDRA PRASAD. "METAL–INSULATOR TRANSITIONS IN TETRAHEDRAL SEMICONDUCTORS UNDER LATTICE CHANGE." International Journal of Modern Physics B 18, no. 07 (2004): 975–88. http://dx.doi.org/10.1142/s0217979204024525.

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Although most insulators are expected to undergo insulator to metal transition on lattice compression, tetrahedral semiconductors Si, GaAs and InSb can become metallic on compression as well as by expansion. We focus on the transition by expansion which is rather peculiar; in all cases the direct gap at Γ point closes on expansion and thereafter a zero-gap state persists over a wide range of lattice constant. The solids become metallic at an expansion of 13% to 15% when an electron Fermi surface around L-point and a hole Fermi surface at Γ-point develop. We provide an understanding of this beh

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He, Lian Fang, Guo Qun Zhao, and Hui Ping Li. "Measurement and Analysis of Time-Temperature-Transformation Curves of Boron Steel 22MnB5." Applied Mechanics and Materials 29-32 (August 2010): 484–89. http://dx.doi.org/10.4028/www.scientific.net/amm.29-32.484.

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Hot stamping of quenchable boron steels is a new and complex forming technology integrating metal hot forming and quenching process. In order to gain the Time – Temperature - Transformation (TTT) curves of 22MnB5, the phase-transformation temperatures of boron steel 22MnB5 are measured by DIL 805A/D quenching and deformation dilatometer. According to the expansion curves of phase-transformation at some constant temperatures, the start and finish temperatures of phase-transformation are calculated by using the expansion method and the tangential method. The types of metallographic phases after

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McMonagle, Charles J., Adam A. L. Michalchuk, and Dmitry Chernyshov. "FOX-7 high-energy-density material: thermal expansion and phase transitions revisited." Acta Crystallographica Section B Structural Science, Crystal Engineering and Materials 78, no. 1 (2022): 91–95. http://dx.doi.org/10.1107/s2052520621013299.

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Variable-temperature single-crystal diffraction experiments treated with the Gandolfi method reveal the detailed temperature evolution of the unit-cell dimensions, structural transformations and the phase co-existence of the energetic material FOX-7. Two first-order phase transitions are observed accompanied by abrupt changes in volume and unit-cell dimensions. The thermal expansion is found to be linear for all three phases, albeit highly anisotropic. Moreover, the experimental thermal expansion coefficients differ from those predicted from literature atomistic simulations.

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Band, David L., and Edison P. Liang. "Adiabatic Supernova Expansion into the Circumstellar Medium." International Astronomical Union Colloquium 101 (1988): 69–72. http://dx.doi.org/10.1017/s0252921100102143.

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AbstractWe perform one dimensional numerical simulations with a Lagrangian hydrodynamics code of the adiabatic expansion of a supernova into the surrounding medium. The early expansion follows Chevalier’s analytic selfsimilar solution until the reverse shock reaches the ejecta core. We follow the expansion as it evolves towards the adiabatic blast wave phase. Some memory of the earlier phases of expansion is retained in the interior even when the outer regions expand as a blast wave. We find the results are sensitive to the initial configuration of the ejecta and to the placement of gridpoints

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Pommerenke, Gerd. "Expansion, Topology and Entropy." Annals of Computational Physics and Material Science 1, no. 3 (2024): 01–36. http://dx.doi.org/10.33140/acpms.01.03.03.

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Object of this work is, to determine, if objects observed more distant are moving away faster than less distant ones. The escape velocity Hr is defined by the HUBBLE-Parameter H, locally H0, which is proportional to the reciprocal of the age T. The calculations are based on a model of Cornelius LANCZOS, outlined at a lecture on the occasion of the Einstein-Symposium 1965 in Berlin [1] and [2]. The model defines the expansion of the universe as a consequence of the existence of a metric wave field. That field also should be the reason for all relativistic effects, both SR and GR. In the context

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Kucharska, Barbara. "Thermal Expansibility of 310S Steel-Based PVD Coating in Presence of Metastable Phase." Solid State Phenomena 163 (June 2010): 247–52. http://dx.doi.org/10.4028/www.scientific.net/ssp.163.247.

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The paper discusses the examination of the thermal expansibility of a coating composed of the austenitic steel 310S using the X-ray diffraction technique. Temperature measurements were made in the temperature interval of Tamb200°C, in which the transition of the metastable bcc phase forming the as-applied coating into an fcc-type phase occurred in the coating. The values of the coefficients of thermal expansion of both phases were determined by using the weighted average of the intensities of diffraction reflections recorded. The values of the coefficients of thermal expansion of both phases

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Schulz, Hans-Jürgen, and Manfred Stockburger. "Discounter treiben Expansion voran." Lebensmittel Zeitung 74, no. 30 (2022): 10. http://dx.doi.org/10.51202/0947-7527-2022-30-010.

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Nach dem Corona-Höhenflug der Supermärkte hoffen jetzt die Discounter auf eine neue Boom-Phase. Die Expansion spielt dabei eine wichtige Rolle, um Marktanteile zu gewinnen. Die Gesamtzahl der Discounter liegt erstmals seit 2017 wieder bei mehr als 16000.

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Enda Wista Sinuraya, Aris Triwiyatno, Bambang Winardi, and Arnoto arnoto. "Load Distribution On The Expansion Of The Medium Voltage Distribution Network From Single Phase To Three Phase In Gondorio Using Etap 12.0." Journal of International Multidisciplinary Research 3, no. 5 (2025): 38–44. https://doi.org/10.62504/1247.

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The Gondoriyo 1-phase network has a network length of 3.2 km supplied by a 1-phase network that is charged in phase S on BSB 1. The extent of the service area makes the load on phase S jump high. The measurement results obtained by the load current during peak load reached a total of 62A. While the load current of the repeater at the time of peak load is phase R of 32A, phase S of 98A, and phase T of 44A. With such conditions, it is necessary to expand the medium voltage distribution network in the Gondoriyo area with the aim of balancing the load on the BSB 1 extension. To facilitate load sha

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Shmakova, Kseniya, Vladimir Tsepelev, and Olga Chikova. "THERMAL STABILITY AND THERMAL EXPANSION BEHAVIOR OF AlFeCoNiCu AS-CAST HIGH-ENTROPY DUAL-PHASE ALLOY." Acta Metallurgica Slovaca 28, no. 3 (2022): 133–39. http://dx.doi.org/10.36547/ams.28.3.1551.

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This work is devoted to the thermal stability and thermal expansion of dual-phase AlFeCoNiCu as-cast high-entropy alloy of equiatomic composition. The mix FCC + BCC phases is in AlFeCoNiCu high entropy alloy. According to characterized by EDS-analysis, Fe and Co are almost uniformly distributed in both phases in comparison with other elements. The BCC phase is rich in Ni and Al, and the FCC phase is Cu. Our measurement results of hardness and elastic modulus values for inter dendrites (FCC phase) and dendrites (BCC phase) of as-cast AlFeCoNiCu alloy showed the difference between there. Hardnes

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Kermode, Allison R., J. Derek Bewley, Juthika Dasgupta, and Santosh Misra. "The Transition from Seed Development to Germination: A Key Role for Desiccation?" HortScience 21, no. 5 (1986): 1113–18. http://dx.doi.org/10.21273/hortsci.21.5.1113.

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Abstract An ovule passes through various contiguous phases during its development into a seed (Fig. 1). The first phase, histodifferentiation (or initial morphogenesis) (27), begins with fertilization and rapid cell division, leading to formation of the embryonic axis and of tissues that eventually accumulate reserve materials (3). Following this is the maturation or seed expansion phase, during which there is a marked increase in seed mass; cell expansion occurs as reserve deposition takes place. The 3rd and final phase, maturation drying (or desiccation), is characterized by a general reduct

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Holzer, Hermann, and David C. Dunand. "Phase transformation and thermal expansion of Cu/ZrW2O8 metal matrix composites." Journal of Materials Research 14, no. 3 (1999): 780–89. http://dx.doi.org/10.1557/jmr.1999.0104.

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Powder metallurgy was used to fabricate fully dense, unreacted composites consisting of a copper matrix containing 50–60 vol% ZrW2O8 particles with negative thermal expansion. Upon cycling between 25 and 300 °C, the composites showed coefficients of thermal expansion varying rapidly with temperature and significantly larger than predicted from theory. The anomalously large expansion on heating and contraction on cooling are attributed to the volume change associated with the allotropic transformation of ZrW2O8 between its high-pressure γ-phase and its low-pressure α- or β-phases. Based on calo

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