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Journal articles on the topic 'Phase growth condition'

Author: Grafiati

Published: 4 June 2021

Last updated: 11 February 2022

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1

Dong, C., J. M. Dubois, M. de Boissieu, M. Boudard, and C. Janot. "Growth of stable Al–Pd–Mn icosahedral phase." Journal of Materials Research 6, no. 12 (1991): 2637–45. http://dx.doi.org/10.1557/jmr.1991.2637.

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We have carried out a detailed investigation of the Al71Pd19Mn10 alloy by using a combination of experimental techniques (neutron diffraction, electron diffraction, high resolution electron microscopy, and electron probe microanalysis). This alloy contains only the perfect icosahedral phase. This icosahedral phase is stable from room temperature up to its melting, though a transient cubic metastable phase coexists with it during the heating. It grows directly from liquid without involving any crystalline phase. Its isothermal growths at different temperatures can well be described by the Avram

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2

Kuntharin, S., S. Sanorpim, T. Nakamura, R. Katayama, and Kentaro Onabe. "Structural Investigation of Cubic-Phase InN on GaAs (001) Grown by MBE under In- and N-Rich Growth Conditions." Advanced Materials Research 31 (November 2007): 215–17. http://dx.doi.org/10.4028/www.scientific.net/amr.31.215.

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We have investigated effect of the In- and N-rich growth conditions on the structural modification of cubic-phase InN (c-InN) films grown on GaAs (001) substrates by rf-plasmaassisted molecular beam epitaxy (RF-MBE). High resolution x-ray diffraction (HRXRD) and Raman scattering measurements were performed to examine the hexagonal phase generation in the c-InN grown films. It is evident that higher crystal quality c-InN films with higher cubic phase purity (~82%) were achieved under the In-rich growth condition. On the other hand, for the N-rich growth condition, the c-InN films exhibited high

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3

Lee, Tae-Gwan, and Hun-Kyun Bae. "Growth characteristics of Microcystis aeruginosa and their effects on coagulation process efficiency." Water Supply 12, no. 1 (2012): 124–31. http://dx.doi.org/10.2166/ws.2011.047.

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In this study, coagulation efficiencies for each growth phase of Microcystis aeruginosa, one of the main species involved in eutrophication in South Korea, were examined at the laboratory scale to obtain data on removal characteristics of this organism during the coagulation process. This study also defines the optimum growth conditions to culture M. aeruginosa in a laboratory environment. The optimum growth conditions of M. aeruginosa were at a concentration of 0.8 mg/L of phosphorus, a concentration of 10 mg/L of nitrogen, 2,000 lx of illumination, and an alkali condition. Coagulation effici

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4

Laseinde, E. A. O., and J. A. Oluyemi. "SEXUAL DIMORPHISM IN THE GROWTH PATTERN OF BRIOLERS UNDER DIFFERENT DIETARY AND HOUSING CONDITION." Nigerian Journal of Animal Production 24, no. 1 (2021): 1–6. http://dx.doi.org/10.51791/njap.v24i1.2329.

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Two hundred and seventy day old broiler chicks were randomly distributed among three dietary treatment (iso-nitrogenous high and low energy straight-run diets and a conventional broiler diet) and two housing condition (the cage and deep litter) to study the comparative growth pattern between the male and female broilers. Each treatment was replicated thrice at 15 birds per replicate. The chicks were raised for 8 weeks. There were significant interactions (p<0.05) between age, diet housing location and sex. The male broiler had significantly (p<0.05) higher body weight gains than the fema

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5

Zhai, Wei, and Bingbo Wei. "Direct nucleation and growth of peritectic phase induced by substantial undercooling condition." Materials Letters 108 (October 2013): 145–48. http://dx.doi.org/10.1016/j.matlet.2013.06.084.

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6

Yang, Wei, Lu Feng, Jing Wang, and Yi Hao. "Phase Field Modeling of Multilayer Epitaxial Growth." Advanced Materials Research 557-559 (July 2012): 2396–400. http://dx.doi.org/10.4028/www.scientific.net/amr.557-559.2396.

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We report simulations of multilayer epitaxial growth using a previously proposed continuum phase ﬁeld model [2, 5]. For island growth in the multilayer regime, this phase-ﬁeld model reproduces mound structures consistent with experimental images concerned. We focus on the evolution of morphology on multilayer islands under a certain condition. Roughness of epitaxial surface increases rapidly with the coverage increasing when the deposition rate is larger than a critical value. Layer-by- layer growth is the most primary method among the styles of islands growth under low deposition rate. Roughn

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7

Esaka, Hisao, Hiroaki Taniguchi, Kei Shinozuka, and Manabu Tamura. "Effect of Anisotropy of Surface Energy on the Growth Direction of Solid Phase in Constrained Growth Condition." MATERIALS TRANSACTIONS 46, no. 5 (2005): 902–8. http://dx.doi.org/10.2320/matertrans.46.902.

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8

Ebenbeck, Matthias, and Patrik Knopf. "Optimal control theory and advanced optimality conditions for a diffuse interface model of tumor growth." ESAIM: Control, Optimisation and Calculus of Variations 26 (2020): 71. http://dx.doi.org/10.1051/cocv/2019059.

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We investigate a distributed optimal control problem for a diffuse interface model for tumor growth. The model consists of a Cahn–Hilliard type equation for the phase field variable, a reaction diffusion equation for the nutrient concentration and a Brinkman type equation for the velocity field. These PDEs are endowed with homogeneous Neumann boundary conditions for the phase field variable, the chemical potential and the nutrient as well as a “no-friction” boundary condition for the velocity. The control represents a medication by cytotoxic drugs and enters the phase field equation. The aim i

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9

Jiang, Deng Ling, Guo Wei Ni, and Yu Min Zhang. "Effects of AOC and Phosphorus on Bacterial Growth under Oligotrophic Condition (1)." Applied Mechanics and Materials 138-139 (November 2011): 981–87. http://dx.doi.org/10.4028/www.scientific.net/amm.138-139.981.

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The effects of phosphorus and organic carbon on bacterial growth were investigated in the laboratory. The bacteria sampled from the drinking water network of Tianjin were inoculated into water samples with different content of phosphorus (0～15µg PO43--P/L) and assimilable organic carbon (10～200µgAOC/L). The inoculated water samples were incubated at 20°C. Bacterial growth was monitored in every 2 days in the beginning of cultivation and in every 4 days or more in the later of the cultivation. Results showed that Phosphorus had obvious promotion on bacterial growth, which included shortening th

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Jiang, Deng Ling, Yu Min Zhang, and Guo Wei Ni. "Effects of AOC and Phosphorus on Bacterial Growth under Oligotrophic Condition (2)." Applied Mechanics and Materials 138-139 (November 2011): 988–94. http://dx.doi.org/10.4028/www.scientific.net/amm.138-139.988.

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The effects of phosphorus and organic carbon on bacterial growth were investigated in the laboratory. The bacteria sampled from the drinking water network of Tianjin were inoculated into water samples with different content of phosphorus (0～15µg PO43--P/L) and assimilable organic carbon (10～200µgAOC/L). The inoculated water samples were incubated at 20°C. Bacterial growth was monitored in every 2 days in the beginning of cultivation and in every 4 days or more in the later of the cultivation. Results showed that Phosphorus had obvious promotion on bacterial growth, which included shortening th

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11

Zhu, Hongyan, and Alan Thorpe. "Predictability of Extratropical Cyclones: The Influence of Initial Condition and Model Uncertainties." Journal of the Atmospheric Sciences 63, no. 5 (2006): 1483–97. http://dx.doi.org/10.1175/jas3688.1.

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Abstract Errors in numerical weather forecasts can be attributed to two causes: deficiencies in the modeling system and inaccurate initial conditions. Understanding of the characteristics of the growth of forecast spread related to model uncertainty is less developed than that for initial condition uncertainty. In this research, the authors aim to construct a theoretical basis for describing such forecast error growth resulting from model uncertainty using mostly an empirical modeling approach. Primitive equation models with different vertical discretization and different horizontal resolution

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12

Zhou, Wen Quan, Ying Juna Gao, Yao Liu, Zhi Rong Luo, and Chuang Gao Huang. "Phase Field Model for Grain Growth with Second-Phase Particles of Stick Shape." Advanced Materials Research 741 (August 2013): 3–6. http://dx.doi.org/10.4028/www.scientific.net/amr.741.3.

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The phase field method was applied to study the effect of second-phase particles (SPP) with different geometric orientations and shapes on grain growth. The results show that, in the grain growth process, most of the spherical second-phase particles located at triple junctions, while the stick SPPs located at the grain boundaries along the grain boundary. The second-phase particles are of the strong pinning effect on grain boundary and the limiting grain radius can be expressed by Zener relations. In the condition of the second-phase particles area fraction and size remaining the same, the sti

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13

BENEDICT, ROBERT C., TIMOTHY PARTRIDGE, DONNA WELLS, and ROBERT L. BUCHANAN. "Bacillus cereus: Aerobic Growth Kinetics." Journal of Food Protection 56, no. 3 (1993): 211–14. http://dx.doi.org/10.4315/0362-028x-56.3.211.

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Three strains of Bacillus cereus were cultured in brain heart infusion medium aerobically under conditions of variable temperature (5 to 42°C), sodium chloride concentrations (0.5–5%), pH (4.5 - 7.5), and sodium nitrite concentration (0 mg/L - 200 mg/L) to simulate conditions of normal and adverse food storage. Cultures were sampled at selected times, and plate counts were used to calculate growth curves under each condition. None of the three strains grew at 5°C, but growth did occur slowly at 8°C, and was most rapid at a temperature of 37°C. Growth occurred in media without additives in all

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14

Milićević, Violeta, Ljiljana Arsić, and Zoran Milićević. "Innovation as a necessary condition for exiting Serbian Republic from phase of slow growth." Ekonomski pogledi 16, no. 4 (2014): 125–37. http://dx.doi.org/10.5937/ekopog1403125m.

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15

Yasuda, K., Y. Tomita, Y. Masuda, et al. "Growth condition of iodine-doped n+-CdTe layers in metal-organic vapor phase epitaxy." Journal of Electronic Materials 31, no. 7 (2002): 785–90. http://dx.doi.org/10.1007/s11664-002-0236-y.

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16

Balitsky, Denis, Etienne Philippot, Vladimir Balitsky, et al. "GaPO4 Single Crystals: Growth Condition by Hydrothermal Refluxing Method." Molecules 25, no. 19 (2020): 4518. http://dx.doi.org/10.3390/molecules25194518.

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Bulk GaPO4 is an advanced piezoelectric material operating under high temperatures according to the α-β phase transition at 970 °C. This work presents the technological development of a hydrothermal refluxing method first applied for GaPO4 single crystal growth. Crystals of 10–20 g were grown in mixtures of aqueous solutions of low- and high-vapor-pressure acids (H3PO4/HCl) at 180–240 °C (10–20 bars). The principal feature of the refluxing method is a spatial separation of crystal growth and nutrient dissolution zones. This leads to a constant mass transportation of the dissolved nutrient, eve

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17

Lu, Jing, and Yan Hui Wang. "Microstructural Property of Silicon Thin Films Deposited on Nanodiamonds Related to QALD Growth Condition." Solid State Phenomena 175 (June 2011): 226–30. http://dx.doi.org/10.4028/www.scientific.net/ssp.175.226.

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Quasi atomic layer deposition method has been successfully used to coat detonation nanodiamonds with ultrathin silicon film from decomposition of gaseous monosilane. Transmission electron microscopy observation indicates a continuous silicon coating could be obtained on every individual particle of nanodiamonds. The changes in the microstructural property of silicon thin films deposited at the temperatures of 400, 450, 500, 550, and 600 °C have been characterized by Raman spectroscopy, X-ray diffraction and Energy dispersive spectroscopy techniques. The results show the phase transition of as-

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18

Jacumasso, Sheila Cristina, Luis Otavio Ribas Lima, Juliana Paula Martins, and André Luis Moreira Carvalho. "Influence of Secondary Ageing on Fatigue Crack Propagation of the AA7050 Aluminum Alloy." Advanced Materials Research 891-892 (March 2014): 1816–21. http://dx.doi.org/10.4028/www.scientific.net/amr.891-892.1816.

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The AA7050 aluminum alloy is widely used due to its low specific combined with high strength and toughness obtained from the heat treatment which involves solution treatment and ageing. It produces the mechanism of precipitation hardening of a thin phase and disperses. In this context, the present study to investigated three ageing treatments, their influence on fatigue crack growth. In order to find a better condition of precipitation of η' phase, which may increase resistance to fatigue crack growth of AA7050 aluminum alloy. The T614-65 condition was chosen as an alternative treatment in rel

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19

Hou, Wei Zhou, and Hong Kui Mao. "Phase-Field Micro-Solidification Simulation for Dendrite Growth in Ni-Cu Binary Alloy." Advanced Materials Research 830 (October 2013): 3–7. http://dx.doi.org/10.4028/www.scientific.net/amr.830.3.

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By optimizing the relevant dendrite growth parameters of Ni-Cu alloy undercooling melt, it has studied the effect that the dendrite evolution process of undercooled melt and the degree of undercooling melt have on the dendrite growth of undercooling melt. In the isothermal and non-isothermal solidification condition, relatively accurate result is obtained by applying the phase field method to simulate Ni-Cu alloy. Simulation results show non-isothermal simulation with Neuman boundary condition suit to the actual physical process better.

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20

Ren, Yan, Xian Zhao, Edward W. Hagley, and Lu Deng. "Ambient-condition growth of high-pressure phase centrosymmetric crystalline KDP microstructures for optical second harmonic generation." Science Advances 2, no. 8 (2016): e1600404. http://dx.doi.org/10.1126/sciadv.1600404.

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Noncentrosymmetric potassium dihydrogen phosphate (KH2PO4or KDP) in the tetragonal crystal phase is arguably the most extensively studied nonlinear optical crystal in history. It has prolific applications ranging from simple laser pointers to laser inertial confinement fusion systems. Recently, type IV high-pressure KDP crystal sheets with a monoclinic crystal phase having centrosymmetric properties have been observed. However, it was found that this new crystal phase is highly unstable under ambient conditions. We report ambient-condition growth of one-dimensional, self-assembled, single-crys

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21

Liu, Jing, and Ying Shuo Wang. "Phase Field Simulation of the Pure Material Dendrite Growth in a Forced Flow." Advanced Materials Research 571 (September 2012): 3–7. http://dx.doi.org/10.4028/www.scientific.net/amr.571.3.

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The phase field method is effective in simulating the formation of solidification microstructure. Based on the phase field models of coupling flow field and noise field proposed by Tong and Beckermann, using finite difference method to solve control equation, apartly simulating the dendritic morphology under the condition of convection or none convection, and drawing the following conclusions after comparing the results: in the side, the dendrite will no longer be symmetrical under the condition of countercurrent and downstream, the dendrite tip grows faster with countercurrent than that of th

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22

Shin, Byung-Hyun, Dohyung Kim, Sanghyup Park, Myungwon Hwang, Junghyun Park, and Wonsub Chung. "Precipitation condition and effect of volume fraction on corrosion properties of secondary phase on casted super-duplex stainless steel UNS S32750." Anti-Corrosion Methods and Materials 66, no. 1 (2019): 61–66. http://dx.doi.org/10.1108/acmm-06-2018-1958.

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Purpose The secondary phase decreased the corrosion resistance because of the segregation of Cr and Mo. Therefore, this paper aims to study the precipitation condition and the effect of secondary phase with volume fraction on corrosion behavior. Design/methodology/approach Secondary phase precipitated approximately from 375°C to 975°C because of saturated Cr and Mo at grain boundary by growth of austenite. Therefore, heat treatment from 800°C to 1,300°C was applied to start the precipitation of the secondary phase. Findings The secondary phase is precipitated at 1,020°C because of segregation

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23

Balbi, M., S. Hereñú, Ingrid Proriol Serre, Jean Bernard Vogt, A. F. Armas, and I. Alvarez-Armas. "Initiation and Growth of Short Cracks during Cycling in an Aged Superduplex Stainless Steel." Key Engineering Materials 465 (January 2011): 411–14. http://dx.doi.org/10.4028/www.scientific.net/kem.465.411.

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The kinetics of short crack growth during cycling has been studied in a superduplex stainless steel in aged condition. After few cycles, slip lines appear distributed in both phases but the preferred phase for microcrack nucleation is the ferrite. Contrary to the exponential behavior observed in the as-received material, the growth rate of microcracks in aged condition follows a rather linear law. Internal dislocation structures were studied in the near surface region; microbands that sometimes extend over several grains were found at approximately 45º of the tensile axis on ferrite grains. Th

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24

Seta, Yuki, Toru Akiyama, Abdul Muizz Pradipto, Kohji Nakamura, and Tomonori Ito. "Roles of growth kinetics on GaN non-planar facets under metalorganic vapor phase epitaxy condition." Applied Physics Express 13, no. 6 (2020): 065505. http://dx.doi.org/10.35848/1882-0786/ab9182.

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25

Tsuchiya, Harutoshi, Kenji Sunaba, Takashi Suemasu, and Fumio Hasegawa. "Growth condition dependence of GaN crystal structure on (001)GaAs by hydride vapor-phase epitaxy." Journal of Crystal Growth 189-190 (June 1998): 395–400. http://dx.doi.org/10.1016/s0022-0248(98)00322-4.

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26

Lebedev, V. G., A. A. Lebedeva, and M. G. Vasin. "The local–nonequlibrium kinetics of growth of stoichiometric compounds under isothermal condition: phase–field approach." IOP Conference Series: Materials Science and Engineering 192 (April 2017): 012021. http://dx.doi.org/10.1088/1757-899x/192/1/012021.

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27

Fan, Hui Qing, Lai Jun Liu, Xiu Li Chen, Jie Zhang, and Wei Wang. "Epitaxial Growth and Electrical Characterization of PBZT Thin Films by RF Magnetron Sputtering Deposition." Key Engineering Materials 336-338 (April 2007): 173–76. http://dx.doi.org/10.4028/www.scientific.net/kem.336-338.173.

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Barium modified lead zirconate titanate (PBZT) thin films were grown epitaxially on Pt/Ti/SiO2/Si substrates by radio-frequency magnetron sputtering deposition and characterized by X-ray diffraction and scanning electron microscopy. Depending on the growth condition, a wide variation of crystal structure and morphology was evolved in PBZT thin films. The formation of phase structure and pyrochlore phase was strongly dependent on the oxygen partial pressure and re-evaporation of lead from the films during the deposition. Perovskite films were obtained by optimizing the deposition conditions and

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28

Yamamoto, Kaneyoshi, Hiroki Watanabe, and Akira Ishihama. "Expression levels of transcription factors in Escherichia coli: growth phase- and growth condition-dependent variation of 90 regulators from six families." Microbiology 160, no. 9 (2014): 1903–13. http://dx.doi.org/10.1099/mic.0.079889-0.

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The expression pattern of the genome in Escherichia coli is controlled by regulating the utilization of a limited number of RNA polymerases between a total of 4600 genes on its genome. The distribution pattern of RNA polymerase on the genome changes after two steps of protein–protein interaction with seven sigma subunits and about 300 transcription factors (TFs). Based on a systematic search for the regulation target promoters recognized by each TF, we propose two novel concepts: each TF regulates a number of target promoters; and each promoter is regulated by many TFs. In parallel, attempts h

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29

Sato, Yuichi, Toshifumi Suzuki, Hiroyuki Mogami, Fumito Otake, Hirotoshi Hatori, and Suguru Igarashi. "Solid Phase Growth of some Metal and Metal Oxide Thin Films on Sapphire and Quartz Glass Substrates." Materials Science Forum 753 (March 2013): 505–9. http://dx.doi.org/10.4028/www.scientific.net/msf.753.505.

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Solid phase growth of thin films of copper (Cu), aluminum (Al) and zinc oxide (ZnO) on single crystalline sapphire and quartz glass substrates were tried by heat-treatments and their crystallization conditions were investigated. ZnO thin films relatively easily recrystallized even when they were deposited on the amorphous quartz glass substrate. On the other hand, Cu and Al thin films hardly recrystallized when they were deposited on the quartz glass substrate. The metal thin films could be recrystallized at only extremely narrow windows of the heat-treatment conditions when they were deposite

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Natsume, Yukinobu, Kenichi Ohsasa, Hisao Esaka, and Toshio Narita. "Analysis of Growth Behavior of a Cellular and Dendritic Interface under a Constrained Growth Condition using a Phase-Field Model." MATERIALS TRANSACTIONS 44, no. 5 (2003): 824–28. http://dx.doi.org/10.2320/matertrans.44.824.

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31

Dantas, A., E. R. Siqueira, S. Fernandes, et al. "Influence of feeding differentiation on the age at onset of puberty in Brazilian Bergamasca dairy ewe lambs." Arquivo Brasileiro de Medicina Veterinária e Zootecnia 68, no. 1 (2016): 22–28. http://dx.doi.org/10.1590/1678-4162-8278.

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The objective of the study was to evaluate body growth and age at onset of puberty on lambs fed two specific diets for low and high growth rates. A herd of 20 Brazilian Bergamasca lambs was divided in two groups (n= 10) and kept confined throughout the experimental period, two animals of the same treatment/pen. Two phases were established: Phase 1, from 90 days of age until the onset of puberty; and Phase 2, from puberty onset up to 1 year old. For Phase 1, two distinct diets were formulated, being: Treatment A, which was formulated to obtain an average daily gain of approximately 150g; and Tr

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Braga de Oliveira, Flávia, Gilberto Álvares da Silva, and Leonardo Martins Graça. "Defining the hematite topotaxial crystal growth in magnetite–hematite phase transformation." Journal of Applied Crystallography 53, no. 4 (2020): 896–903. http://dx.doi.org/10.1107/s1600576720006305.

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Magnetite and hematite iron oxides are minerals of great economic and scientific importance. The oxidation of magnetite to hematite is characterized as a topotaxial reaction in which the crystallographic orientations of the hematite crystals are determined by the orientation of the magnetite crystals. Thus, the transformation between these minerals is described by specific orientation relationships, called topotaxial relationships. This study presents electron-backscatter diffraction analyses conducted on natural octahedral crystals of magnetite partially transformed into hematite. Inverse pol

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Susantoro, Tri Muji, Ketut Wikantika, Agung Budi Harto, and Deni Suwardi. "Monitoring Sugarcane Growth Phases Based on Satellite Image Analysis (A Case Study in Indramayu and its Surrounding, West Java, Indonesia)." HAYATI Journal of Biosciences 26, no. 3 (2019): 117. http://dx.doi.org/10.4308/hjb.26.3.117.

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This study is intended to examine the growing phases and the harvest of sugarcane crops. The growing phases is analyzed with remote sensing approaches. The remote sensing data employed is Landsat 8. The vegetation indices of Normalized Difference Vegetation Index (NDVI) and Enhanced Normalized Difference Vegetation Index (ENDVI) are employed to analyze the growing phases and the harvest of sugarcane crops. Field survey was conducted in March and August 2017. The research results shows that March is the peak of the third phase (Stem elonging phase or grand growth phase), the period from May to

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Menningen, K. L., C. J. Erickson, M. A. Childs, L. W. Anderson, and J. E. Lawler. "Study of diamond growth from a variety of input gases." Journal of Materials Research 10, no. 5 (1995): 1108–14. http://dx.doi.org/10.1557/jmr.1995.1108.

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The gas phase densities of CH3 and CH and the hydrogen dissociation fraction are measured in a hot filament diamond deposition system for each of several different hydrocarbon input gases. The crystal growth rate and the appearance of the diamond grown from the different input gases are also examined. A comparison of the measurements indicates that the nature of the input hydrocarbon is relatively unimportant because fast gas phase reactions completely scramble the identities of the input carbon atoms. The addition of oxygen greatly alters the gas phase densities and other experimental factors

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Mohammadein, S. A., and K. G. Mohamed. "Growth of a vapour bubble in a viscous, superheated liquid in two-phase flow." Canadian Journal of Physics 93, no. 7 (2015): 769–75. http://dx.doi.org/10.1139/cjp-2014-0117.

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This paper presents the growth of a vapour bubble in a viscous, superheated liquid. The problem is solved analytically using the Plesset and Zwick method after modifying the pressure difference to include a multiple quantity of the initial pressure difference, its coefficient b giving the necessary condition for the growth process. Relations between the initial and final times in terms of the given physical parameters are derived. The bubble radius is proportional to the thermal diffusivity, the initial pressure difference and its coefficient, while it is inversely proportional to the surface

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Sharma, Nikunj, Gabriel Fleurent, Fatima Awwad, et al. "Red Light Variation an Effective Alternative to Regulate Biomass and Lipid Profiles in Phaeodactylum tricornutum." Applied Sciences 10, no. 7 (2020): 2531. http://dx.doi.org/10.3390/app10072531.

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Marine water diatom Phaeodactylum tricornutum is a photosynthetic organism that is known to respond to the changing light environment and adapt to different temperatures to prevent photoinhibition and maintain its metabolic functions. The objective of the present study was to test whether light shift variations in different growth phases impact the growth and lipid metabolism of P. tricornutum. Thus, we investigated R exposure in different growth phases to find the most effective light shift condition. The results showed that substituting white light (W) by red light (R) under autotrophic cond

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Hector, L. G., Woo-Seung Kim, and O. Richmond. "Freezing Range Effect on Shell Growth Instability During Alloy Solidification." Journal of Applied Mechanics 63, no. 3 (1996): 594–602. http://dx.doi.org/10.1115/1.2823339.

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During metal casting, nonuniform thermal strains due to small spatial perturbations in the cooling profile may lead to a condition of growth instability. This condition is one where the metal shell thickness becomes highly nonuniform due to the formation of microscopic air gaps along the mold surface. Documented experimental work with iron-carbon and aluminum alloy systems provides qualitative evidence that the freezing range width has an important influence on the macromorphology of the freezing front and hence the shell thickness. In this paper, we develop a thermomechanical model which poin

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Ramdan, Raden Dadan, Tomohiro Takaki, Joy Rizki Pangestu Djuansjah, Bondan Tiara Sofyan, and Esah Hamzah. "Development of Phase Field Simulation for the Growth of Dendrite Structure of Al-Si Cast Alloy." Materials Science Forum 737 (January 2013): 37–42. http://dx.doi.org/10.4028/www.scientific.net/msf.737.37.

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Micro to nano scale study of dendrite structure is important in order to have better properties control of casting product. The present study concerns on the morphological study of dendrite structure by phase-field simulation, in order to obtain the morphological growth of this structure that close its real morphology. Focus was given on the morphological growth of dendrite structure of Al-Si cast alloys, therefore thermodynamic data were taken for this type of materials. Anisotropy noise, strength of anisotropy and different undercooled conditions were applied as the variable parameters in th

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39

Kurz, W., and R. Trivedi. "Microstructure and Phase Selection in Laser Treatment of Materials." Journal of Engineering Materials and Technology 114, no. 4 (1992): 450–58. http://dx.doi.org/10.1115/1.2904198.

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Microstructure formation during the laser treatment of materials is discussed so as to enable one to design appropriate alloys and laser processing conditions which will produce a microstructure that has optimum properties. In order to predict microstructures for different laser processing conditions, the theoretical models for single phase and two-phase eutectic growth under a wide range of solidification rates have been developed. Specific emphasis is placed on the new physics that become important under rapid solidification conditions of laser processing. Based on these models, the selectio

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Rahman, MR, SD Chowdhury, ME Hossain, and M. Ahammed. "Growth and early laying performance of a broiler parent stock in an open-sided house under restricted feeding." Bangladesh Journal of Animal Science 44, no. 1 (2015): 40–45. http://dx.doi.org/10.3329/bjas.v44i1.23141.

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An experiment was carried out with SHAVER Starbro broiler parent stock from one day old to the point of peak production to investigate the growth, early laying performance and their adaptability during brooding, growing and early laying periods. The experimental period was divided into five phases, phase I (0 2nd week), phase II (3rd 8th week), phase III (9th 22nd week), phase IV (23rd sexual maturity), phase V (sexual maturity to peak production). The experiment was carried out in an open sided house and management practices of birds were close to the recommendation of the broiler bre

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Rankl, Dominik, Valdas Jokubavicius, Mikael Syväjärvi, and Peter J. Wellmann. "Quantitative Study of the Role of Supersaturation during Sublimation Growth on the Yield of 50 mm 3C-SiC." Materials Science Forum 821-823 (June 2015): 77–80. http://dx.doi.org/10.4028/www.scientific.net/msf.821-823.77.

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We have investigated the growth of 3C-SiC using sublimation growth in the temperature range from 1800°C to 1950°C. The supersaturation was determined using numerical modeling of the temperature field and gas phase composition by applying quasi-equilibrium thermodynamic conditions. Analysis of the 3C-SiC yield was carried out by optical microscopy, optical absorption, Raman spectroscopy and x-ray analysis. Quantitative data on supersaturation are compared with most stable 3C-SiC nucleation and growth condition. Finally the application to large area growth in a physical vapor transport growth re

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Teng, Chun Yu, Yun Fu, Zhan Yong Ren, Yong Hong Li, Yun Wang, and Wen Li Ouyang. "Phase Field Simulation of Grain Growth with Particle Pinning." Key Engineering Materials 724 (December 2016): 8–11. http://dx.doi.org/10.4028/www.scientific.net/kem.724.8.

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The properties of alloys depend on its microstructure, such as the size of grains. In general, the balanced mechanical properties of alloys can be obtained with small grain size. While the grain size of alloys may increases under heat treatment, thermal mechanical processing and service condition of high temperature, i.e., the grain growth is inevitable. The effort of most research is to control the rate of grain growth and avoid abnormal grain growth. For example, pinning the grain boundary and reduce its mobility with the second phase particles in order to prevent grain growth. Therefore, th

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Bronk, Burt V., and Lou Reinisch. "Variability of Steady-State Bacterial Fluorescence with Respect to Growth Conditions." Applied Spectroscopy 47, no. 4 (1993): 436–40. http://dx.doi.org/10.1366/0003702934334895.

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The UV-excited (∼280 nm) fluorescence emission spectra from suspensions of several different species of bacteria are examined to determine to what extent differences in condition of growth change their spectra. This is an important factor if these spectra are considered for use for identification of species. It was found that the spectra were relatively invariant with respect to whether the bacteria were harvested during growth (log phase) or after the medium was depleted (stationary phase). For a given strain of Escherichia coli it was found that the emission spectrum did not change for growt

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Kim, Yong-Jae, Yun-Hee Lee, Sooheyong Lee, Hiroki Nada, and Geun Woo Lee. "Shock growth of ice crystal near equilibrium melting pressure under dynamic compression." Proceedings of the National Academy of Sciences 116, no. 18 (2019): 8679–84. http://dx.doi.org/10.1073/pnas.1818122116.

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Crystal growth is governed by an interplay between macroscopic driving force and microscopic interface kinetics at the crystal–liquid interface. Unlike the local equilibrium growth condition, the interplay becomes blurred under local nonequilibrium, which raises many questions about the nature of diverse crystal growth and morphological transitions. Here, we systematically control the growth condition from local equilibrium to local nonequilibrium by using an advanced dynamic diamond anvil cell (dDAC) and generate anomalously fast growth of ice VI phase with a morphological transition from thr

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Alfirano, Wibawa Samdan, and Hidayat Maulud. "Effect of Intercritical Annealing Temperature and Holding Time on Microstructure and Mechanical Properties of Dual Phase Low Carbon Steel." Applied Mechanics and Materials 493 (January 2014): 721–26. http://dx.doi.org/10.4028/www.scientific.net/amm.493.721.

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Dual phase steels are an important advanced high strength steel, which have been widely used in the automotive industry for vehicle components requiring light weight and safety. In this study, the formation of dual phase structure with various volume fraction of martensite in a low carbon steel SS400 during intercritical annealing were investigated. It was found that intercritical annealing temperature and holding time affected the microstructure and mechanical properties of dual phase low carbon steel. The specimens were heated at intercritical annealing temperature of 750°C, 775°C, 800°C and

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Massana, Ramon, Aurelie Labarre, David López-Escardó, et al. "Gene expression during bacterivorous growth of a widespread marine heterotrophic flagellate." ISME Journal 15, no. 1 (2020): 154–67. http://dx.doi.org/10.1038/s41396-020-00770-4.

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AbstractPhagocytosis is a fundamental process in marine ecosystems by which prey organisms are consumed and their biomass incorporated in food webs or remineralized. However, studies searching for the genes underlying this key ecological process in free-living phagocytizing protists are still scarce, in part due to the lack of appropriate ecological models. Our reanalysis of recent molecular datasets revealed that the cultured heterotrophic flagellate Cafeteria burkhardae is widespread in the global oceans, which prompted us to design a transcriptomics study with this species, grown with the c

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Sun, Li Feng, Hong Po Wang, Mao Fa Jiang, Qi Zheng Lin, Chun Lai Liu, and Yong Zou. "Effects of TiO₂ on Crystal Phases of Mold Fluxes." Advanced Materials Research 168-170 (December 2010): 2254–58. http://dx.doi.org/10.4028/www.scientific.net/amr.168-170.2254.

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Under the experimental condition,the crystal phases of mold fluxes contained cuspidine, wollastonite and melilite. The addition of TiO2 could stimulate Perovskite to be precipitated in mold fluxes whilst the growth of cuspidine and wollastonite were inhibited. At 1300°C mold fluxes existed mainly in glass phase, with few melilite phases existed in several sections while after TiO2 was added, perovskite was precipitated and melilite was dissolved.

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Borovkov, Andrei B., Irina N. Gudvilovich, Olga A. Memetshaeva, Anna L. Avsiyan, Alexander S. Lelekov, and Tatyana M. Novikova. "MORPHOLOGICAL AND MORPHOMETRICAL FEATURES IN DUNALIELLA SALINA (CHLAMYDOMONADALES, DUNALIELLACEAE) DURING THE TWO-PHASE CULTIVATION MODE." Ecologica Montenegrina 22 (September 17, 2019): 157–65. http://dx.doi.org/10.37828/em.2019.22.12.

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The paper presents studies of morphological and morphometrical characteristics of green halophilic carotenogenic microalga Dunaliella salina (Dunal) Teodoresco, 1905, from the south-west region of Crimean Peninsula. D. salina was cultivated in two-phase mode under conditions of natural illumination at the premises of A.O. Kovalevsky Institute of Biology of the Southern Seas of RAS (IBSS), Sevastopol, Russia. The maximum D. salina cell density was 1.69·106 cell/ml in the “green” phase and 0.84·106 cell/ml in the “red” growth phase. The maximum productivity by cell number reached 0.15 ∙ 106 cell

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Ademola, A. A., T. R. Fayeye, A. O. Akintunde, V. O. Chiemezie, and A. E. Jubril. "Survivability of pure and cross bred chickens at early and late growth phases in Nigeria humid tropics." Nigerian Journal of Animal Production 47, no. 2 (2020): 8–12. http://dx.doi.org/10.51791/njap.v47i2.49.

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Survival is a general measure of an animal's fitness. In commercial poultry production, mortality can result from a range of conditions (disease, physiological stress, environmental condition and aggressive behaviour. This study was aimed at evaluating Yoruba Ecotype Chicken (YEC), Sussex (SS), Goliath (GG), Marshall (MM) and their crossbred offspring for survivability in the Nigeria humid tropical climate. A total of 529chicks were raised fromday-old to 8 weeks (early growth phase) and 9 weeks to 20 weeks of age (Late growth phase). Data obtained were subjected to the Kaplan meier survivabili

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Akiyama, Toru, Yoshitaka Takemoto, Kohji Nakamura, and Tomonori Ito. "Theoretical investigations of initial growth processes on semipolar AlN$(11\bar{2}2)$ surfaces under metal–organic vapor-phase epitaxy growth condition." Japanese Journal of Applied Physics 55, no. 5S (2016): 05FA06. http://dx.doi.org/10.7567/jjap.55.05fa06.

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