Academic literature on the topic 'Phase growth condition'

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Journal articles on the topic "Phase growth condition"

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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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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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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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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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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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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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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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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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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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Dissertations / Theses on the topic "Phase growth condition"

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Giraud, Stephen. "Croissance de couches minces de silicium pour applications photovoltaïques par epitaxie en phase liquide par évaporation du solvant." Thesis, Grenoble, 2014. http://www.theses.fr/2014GRENI057/document.

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Une solution pour réduire la consommation de Si de haute pureté dans les cellules solaires à base de Si cristallin est de faire croître une couche active mince de haute qualité sur un substrat à faible coût. L'Epitaxie en Phase Liquide (EPL) est l'une des techniques les plus appropriées, car la croissance est réalisée dans des conditions proches de l'équilibre. On s'intéresse plus particulièrement au développement et l'optimisation d'une technique de croissance stationnaire et isotherme basée sur l'évaporation du solvant : l'Epitaxie en Phase Liquide par Evaporation d'un Solvant métallique (EP
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Stauder, Bruno. "Synthèse et caractérisation de films Al-O, Al-N et Zr-O prépares par pulvérisation cathodique magnétron en condition réactive." Vandoeuvre-les-Nancy, INPL, 1994. http://www.theses.fr/1994INPL080N.

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Ce travail porte sur la synthèse et la caractérisation physico-chimique de films minces obtenus par pulvérisation cathodique magnétron en courant continu d'une cible métallique d'aluminium ou de zirconium dans des plasmas réactifs argon-oxygène ou argon-azote. Les solutions solides métastables sursaturées en oxygène ou en azote ainsi que les composes céramiques du type oxyde (Al₂O₃, Zro₂) ou du type nitrure (ALN) avec leurs différentes variétés cristallines ou amorphes sont étudiés par les principales techniques d'analyse structurale par diffraction et méthodes physiques d'analyse chimique. Un
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Candau, Nicolas. "Compréhension des mécanismes de cristallisation sous tension des élastomères en conditions quasi-statiques et dynamiques." Thesis, Lyon, INSA, 2014. http://www.theses.fr/2014ISAL0057/document.

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La cristallisation sous tension (SIC) du caoutchouc naturel (NR) a fait l’objet d’un nombre considérable d’études depuis sa découverte il y a près d’un siècle. Cependant, il existe peu d’informations dans la littérature concernant le comportement du caoutchouc à des vitesses de sollicitation proches des temps caractéristiques de cristallisation. L’objectif de cette thèse est alors de contribuer à la compréhension du phénomène de cristallisation sous tension grâce à des essais dynamiques à grandes vitesses. Pour répondre à cet objectif, nous avons développé une machine de traction permettant de
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Lassalle, Francis. "Conception et mise en oeuvre d'un reacteur d'epitaxie gainas/inp par la methode aux hydrures, analyse des conditions de croissance." Clermont-Ferrand 2, 1987. http://www.theses.fr/1987CLF2D193.

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Reacteur permettant la croissance de couches epitaxiques dans le systeme (ga,in,as,p) par transport en phase vapeur et par la methode aux hydrures (ph::(3),ash::(3),h::(2),hcl,in,ga). Sa conception autorise la realisation d'heterostructures a interfaces abruptes en conservant une geometrie de reacteur monochambre. Analyse des conditions de croissance du ternaire gainas sur support inp (100). Mise en evidence de l'effet du non equilibre entre les especes as::(2) et as::(4) sur la presence d'un depot parasite en amont de l'echantillon et sur les caracteristiques du depot. Proposition d'un modele
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(9435722), Pavankumar Vaitheeswaran. "Interface Balance Laws, Growth Conditions and Explicit Interface Modeling Using Algebraic Level Sets for Multiphase Solids with Inhomogeneous Surface Stress." Thesis, 2020.

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Interface balance laws are derived to describe transport across a phase interface. This is used to derive generalized conditions for phase nucleation and growth, valid even for solids with inhomogeneous surface stress.<div><br></div><div>An explicit interface tracking approach called Enriched Isogeometric Analysis (EIGA) is used to simulate phase evolution. Algebraic level sets are used as a measure of distance and for point projection, both necessary operations in EIGA. Algebraic level sets are observed to often fail for surfaces. Rectification measures are developed to make algebraic level s
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Caputa, J. P. "Boundary conditions for vapor-solid interfaces in the context of vapor phase crystal growth by physical methods." Thesis, 2010. http://hdl.handle.net/1828/3620.

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Non-equilibrium boundary conditions based upon kinetic theory and linear irreversible thermodynamics are applied to the interface kinetics in vapor crystal growth of unitary and binary materials. These are compared to equilibrium boundary conditions in a simple, 1D closed ampoule physical vapor transport model. It is found that in cases where the diffusive impedance is negligible and when system pressure is low, surface kinetics play an important role in limiting the mass transport. In cases where diffusion is the dominant transport impedance, and/or when the pressure in the system is hig
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Appleman, Jeremy Alexander. "Regulation of rRNA expression in Escherichia coli under conditions of changing growth phase and growth rate / the roles of FIS and the P2 promoter /." 1998. http://catalog.hathitrust.org/api/volumes/oclc/41937302.html.

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Books on the topic "Phase growth condition"

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Chalanchuk, S. M. Recruitment, growth, and condition of a population of white sucker, Catostomus commersoni in lake 223, experimental lakes area, northwestern Ontatio, during the recovery phase of an acidification experiment. Dept. of Fisheries and Oceans, 1997.

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Solomou, Solomos. Phases of economic growth, 1850-1973: Kondratieff waves and Kuznets swings. Cambridge University Press, 1987.

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Solomou, Solomos. Phases of economic growth, 1850-1973: Kondratieff waves and Kuznets swings. Cambridge University Press, 1990.

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Canada. Department of Finance. The next phase of Canada's Economic Action Plan, a low-tax plan for jobs and growth. Govt. of Canada, 2011.

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Finance, Canada Department of. The next phase of Canada's economic action plan, a low-tax plan for jobs and growth. Dept. of Finance], 2011.

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Agunbiade, Ajiboye O. Towards a model of convergent regional growth and welfare for Nigeria: Phase II of a study on regional problem in Nigeria. Nigerian Institute of Social and Economic Research (NISER), 1996.

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M, Wangwe S., Van Arkadie Brian, and Economic and Social Research Foundation (Tanzania), eds. Overcoming constraints on Tanzanian growth: Policy challenges facing the third phase government. Mkuki na Nyota, 2000.

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Waldo, Frank. Modern Meteorology: An Outline of the Growth and Present Condition of Some of its Phases. Obscure Press, 2006.

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Solomou, Solomos. Phases of Economic Growth, 18501973: Kondratieff Waves and Kuznets Swings. Cambridge University Press, 1988.

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Solomou, Solomos. Phases of Economic Growth, 18501973: Kondratieff Waves and Kuznets Swings. Cambridge University Press, 1990.

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Book chapters on the topic "Phase growth condition"

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Deng, Xiaomin, Xiaodan Ke, Michael A. Sutton, Haywood S. Watts, and Hubert W. Schreier. "Curvilinear Fatigue Crack Growth Under Out-of-Phase Loading Conditions." In Fracture, Fatigue, Failure, and Damage Evolution, Volume 5. Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-06977-7_4.

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Wellmann, Peter J., Thomas L. Straubinger, Patrick Desperrier, et al. "Modified Physical Vapor Transport Growth of SiC - Control of Gas Phase Composition for Improved Process Conditions." In Materials Science Forum. Trans Tech Publications Ltd., 2005. http://dx.doi.org/10.4028/0-87849-963-6.25.

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Ko, Kyung Jun, Pil Ryung Cha, Jong Tae Park, Jae Kwan Kim, and Nong Moon Hwang. "Phase Field Model Simulation of Grain Growth in Three Dimensions under Isotropic and Anisotropic Grain Boundary Energy Conditions." In Materials Science Forum. Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-443-x.1101.

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Kuntharin, S., S. Sanorpim, T. Nakamura, R. Katayama, and K. Onabe. "Structural Investigation of Cubic-Phase InN on GaAs (001) Grown by MBE under In- and N-Rich Growth Conditions." In Semiconductor Photonics: Nano-Structured Materials and Devices. Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-471-5.215.

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Odetola, Peter Ifeolu, Patricia A. P. Popoola, and Philip Oladijo. "Thin Coating Deposition by Magnetron Sputtering." In Production, Properties, and Applications of High Temperature Coatings. IGI Global, 2018. http://dx.doi.org/10.4018/978-1-5225-4194-3.ch015.

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Advances in thin-film deposition expose new frontiers to structures and phases that are inaccessible by conventional chemical means and have led to innovative modification of existing materials' properties. Thin-film deposition by magnetron sputtering is highly dependent on ion bombardments; coupled with sublimation of solid target unto the substrate through momentum transfer. It is summarily base on phase change of target material under high-energy influence; corresponding controlled condensation of sputtered atoms on substrate material during which process parameters and growth conditions dictate the pace of the atomic scale processes for thin-film formation. Magnetron sputtering is a state-of-the-art thin film deposition technique versatile for several unique applications, especially in the semiconductor industry. Magnetron sputtering is very novel in its use to achieve low-pressure condition that maximizes and conserve stream of electrons for effective knocking of inert atoms into ions. This ensures the high-energy acquired is not dissipated in gas-phase collisions.
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Bunker, Bruce C., and William H. Casey. "Nucleation and Growth of Solid Oxide and Hydroxide Phases." In The Aqueous Chemistry of Oxides. Oxford University Press, 2016. http://dx.doi.org/10.1093/oso/9780199384259.003.0013.

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In this chapter, we consider what happens when solids begin to form from solution. To grow solids from solution, solution conditions are changed from a condition in which all species are completely soluble to a condition in which they are insoluble. In the context of hydrolysis diagrams, the solution composition moves in pH and total dissolved metal concentration from a regime below a solubility or saturation limit (given by the bold solid line in Figs. 5.2 and 5.3) to a regime above this limit where the solution is supersaturated. Supersaturated solutions are inherently unstable and have the potential to generate hydroxide or oxide solids. Sometimes these solutions can be maintained in a metastable state in which precipitation does not occur immediately. However, Mother Nature eventually reduces the energy of the solution by forming a stable mixture of solids plus solution species. As solids form, soluble complexes are removed from solution until concentrations drop back to the solubility limit. The precipitation of a solid from an aqueous solution is a surprisingly complex process, involving nucleation and growth phenomena that occur at nanometer-length scales. Nucleation involves reactions between oligomers to form new clusters or particles that are sufficiently large that they do not redissolve spontaneously via the reversible reactions denoted in hydrolysis diagrams. Homogeneous and heterogeneous nucleation processes represent events that occur within the bulk solution or at the interface of another phase, respectively. Growth involves the addition of monomers to clusters in solution or oligomers to existing particles or surfaces. The combination of nucleation and growth phenomena can lead to oxides exhibiting a bewildering range of sizes, shapes, and crystal structures. How do metal complexes decide whether to form a new particle or add to an existing particle? What determines the size, shape, and crystal structure of evolving particles? Do the particles aggregate with one another in an organized fashion? Because nucleation typically involves extremely rapid (&lt;1 millisecond) events involving objects that are extremely small (on the order of a nanometer), it is difficult to probe such phenomena at a molecular level.
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Li, Yuefeng. "Data Warehousing for Association Mining." In Business Information Systems. IGI Global, 2010. http://dx.doi.org/10.4018/978-1-61520-969-9.ch054.

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With the phenomenal growth of electronic data and information, there are many demands for developments of efficient and effective systems (tools) to address the issue of performing data mining tasks on data warehouses or multidimensional databases. Association rules describe associations between itemsets (i.e., sets of data items) (or granules). Association mining (or called association rule mining) finds interesting or useful association rules in databases, which is the crucial technique for the development of data mining. Association mining can be used in many application areas, for example, the discovery of associations between customers’ locations and shopping behaviours in market basket analysis. Association mining includes two phases. The first phase is called pattern mining that is the discovery of frequent patterns. The second phase is called rule generation that is the discovery of the interesting and useful association rules in the discovered patterns. The first phase, however, often takes a long time to find all frequent patterns that also include much noise as well (Pei and Han, 2002). The second phase is also a time consuming activity (Han and Kamber, 2000) and can generate many redundant rules (Zaki, 2004) (Xu and Li, 2007). To reduce search spaces, user constraintbased techniques attempt to find knowledge that meet some sorts of constraints. There are two interesting concepts that have been used in user constraint-based techniques: meta-rules (Han and Kamber, 2000) and granule mining (Li et al., 2006). The aim of this chapter is to present the latest research results about data warehousing techniques that can be used for improving the performance of association mining. The chapter will introduce two important approaches based on user constraint-based techniques. The first approach requests users to inputs their meta-rules that describe their desires for certain data dimensions. It then creates data cubes based these meta-rules and then provides interesting association rules. The second approach firstly requests users to provide condition and decision attributes that used to describe the antecedent and consequence of rules, respectively. It then finds all possible data granules based condition attributes and decision attributes. It also creates a multi-tier structure to store the associations between granules, and association mappings to provide interesting rules.
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Kennel, Charles F. "Triggered Substorms." In Convection and Substorms. Oxford University Press, 1996. http://dx.doi.org/10.1093/oso/9780195085297.003.0018.

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Do events in the solar wind “trigger” substorms, or do substorms occur independently? Is there a difference between triggered and untriggered substorms? What kinds of events trigger onsets? Expansions? Can we learn about their physics from the things that do and do not trigger them? Does the switch from expansion to recovery phase require external prompting? Even if it is not required, can the recovery be prompted anyway? If conditions in the solar wind are steady, can we still have substorms? In this chapter, we review studies that have addressed questions like these. “Pseudoexpansions” resemble the first several minutes of development of the dipolarization and westward surge, but later fail to sustain an expanding current wedge or auroral bulge (Section 15.2). They may be triggered by minor dayside reconnection events that occur before the threshold condition for the full substorm is reached. Interplanetary shocks can trigger a substorm within minutes of their arrival at earth, provided they are sufficiently strong and a growth phase is already in progress (Section 15.3). Other compressional solar wind discontinuities also can trigger substorms, but rarefactions cannot. Northward turnings of the interplanetary field can also trigger substorms after a growth phase has already started (Section 15.4). During intervals of steady southward interplanetary field, either quasisteady convection bays or quasiperiodically recurring substorms can occur (Section 15.5). An inkling of pseudoexpansion behavior has been around since before the auroral substorm existed (Elvey, 1957), and in his original paper Akasofu (1964) not only had taken them into account but suggested that they occur on other than the most equatorward arc. Later, Davis and Hallinan (1976) and Untiedt et al. (1978) pointed out that pseudoexpansions are brief activations of local small-scale auroral spirals to the ground observer. Now it appears that pseudoexpansions are attenuated versions of complete expansions in several important respects: brightening of an auroral arc, Pi 2 pulsation bursts, and enhancements of the auroral electrojet, (McPherron, 1991). In this section, we show the auroral pseudoexpansion has a counterpart in geostationary orbit, and present evidence that both may be responses to variations in the dayside reconnection rate.
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Priyadarshi, Soumya Saswat. "Wastewater Treatment Using Microalgae." In Advances in Environmental Engineering and Green Technologies. IGI Global, 2021. http://dx.doi.org/10.4018/978-1-7998-4921-6.ch016.

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Six different concentrations of Chlorella vulgaris microalgae culture are incorporated with raw wastewater to improve treatment efficiency in three phases. In phase one of study, 30% and 40% microalgae were incorporated with raw wastewater with 24 hrs retention period for 18 days in a batch mode and these conditions are made same for all phases. During phase two and phase three of study, 20%, 25% and 35%, 45% micro-algae concentrations used to treat raw wastewater respectively. Amongst all the six concentrations, 30% microalgae behaves most efficiently and is able to reduce 34 to 81% COD, 43 to 75% nitrate, and 36 to 99% of phosphorous. Overall ammonia nitrogen reduction varies from 80% to 99%. No attempt was made to control temperature or evaporation losses. These attempts can definitely increase the growth process of microalgae and increase the removal efficiency of nutrients in wastewater.
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Gooren, Louis J. G. "Gynaecomastia." In Oxford Textbook of Endocrinology and Diabetes. Oxford University Press, 2011. http://dx.doi.org/10.1093/med/9780199235292.003.9131.

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Parenchymal and stromal cells with the potential for normal breast development are equally present in prepubertal boys and girls. Men and women do not differ in sensitivity to the hormonal action of sex steroids, and therefore men have the same potential to develop breasts as women. Whether this actually occurs obviously depends on a person’s hormonal milieu. In order to understand the pathophysiology of gynaecomastia it is essential to know that breast tissue is, for its development, under control of both stimulatory hormonal action (oestrogens and progestogens) and inhibitory hormonal action of androgens. Gynaecomastia typically occurs when there is a relative dominance of oestrogenic over androgenic action; many cases of gynaecomastia are not the result of an overproduction of oestrogens per se, but rather due to the failing inhibitory action of androgens (1). In the assessment of gynaecomastia, as much attention must be paid to a potential source of feminizing hormones as to decreased androgen production or interference with the biological action of androgens. Oestrogens stimulate the proliferation and differentiation of parenchymal ductal elements while progesterone supports alveolar development. The biological actions of oestrogens and progesterone do not appear in cases of growth hormone deficiency. Prolactin stimulates the differentiated ducts to produce milk. Testosterone inhibits the growth and differentiation of breast development, probably through an antioestrogenic action (1). Whatever the cause, gynaecomastia shows the same histological developmental pattern. At first, there is florid ductal proliferation, with epithelial hyperplasia and increase in stromal and periductal connective tissue, with increased vascularity and periductal oedema. After approximately one year, there is increased stromal hyalinization, dilation of the ducts, and a marked reduction in epithelial proliferation, a ‘burnt-out’ phase of the condition. The result is inactive fibrotic tissue which no longer responds to endocrine therapy. Gynaecomastia is not an uncommon finding and most cases will not represent a serious medical condition. However, gynaecomastia may signify the presence of a malignancy producing oestrogens, aromatase (the enzyme that converts androgens to oestrogens), or human chorionic gonadotrophin (hCG). Common locations of such tumours are the testis, lungs, liver or the gastrointestinal tract. Consequently, cases of gynaecomastia must be taken seriously and the diagnostic approach must reasonably rule out a malignancy in order to avoid any undue delay in its diagnosis.
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Conference papers on the topic "Phase growth condition"

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Badillo, Arnoldo A. "Phase-Field Simulations of Bubble Growth Under Convective Conditions." In ASME 2013 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/imece2013-65925.

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Although many years have past from the pioneer work of Lord Rayleigh [1] on bubble growth in the inertia controlled regime and later from Scriven [2], Plesset and Zwick [3] for the diffusion controlled regime, we are still missing mathematical model able to predict accurately both situations. Advances in computational power open the possibility of exploring up-close the transport phenomena in the vicinity of the liquid-vapor interface at an unprecedented resolution. Nonetheless, a high numerical resolution is not enough to fully solve the general problem of bubble growth. New models based on a
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Deng, L., E. W. Hagley, Y. Ren, and X. Zhao. "Ambient-condition growth of high-pressure phase centrosymmetric crystalline KDP microstructures for efficient optical second harmonic generation." In Frontiers in Optics. OSA, 2016. http://dx.doi.org/10.1364/fio.2016.jth2a.9.

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Cai, D., B. Wu, L. L. Zheng, H. Zhang, W. J. Mecouch, and Z. Sitar. "Modeling of a Gallium Nitride Epitaxy Growth System." In ASME 2004 International Mechanical Engineering Congress and Exposition. ASMEDC, 2004. http://dx.doi.org/10.1115/imece2004-59819.

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An iodine vapor phase epitaxy (IVPE) system has been designed and built at North Carolina State University to grow high quality thick gallium nitride layer at the growth rate up to 80 μm/h with the deposition temperature of 1010 °C and the pressure of 200 Torr. In order to optimize the growth process, a numerical model, which is capable of describing multi-component fluid flow, gas/surface chemistry, conjugate heat transfer, radiation heat transfer and multi-species transport, has been developed to help in design and optimization of the IVPE reactor. The gallium source weight reduce rate is co
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Yu, Weiwei, Pedro M. Vargas, Ben Crowder, Sam Mishael, and Ramgopal Thodla. "Small Scale Sour Fatigue Testing With Dense Phase Gases." In ASME 2012 31st International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/omae2012-83973.

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One way generally accepted by industry to evaluate the effect of sour environment on fatigue performance of girth welds is by small scale testing in sour brines. These tests are commonly done at room temperature and pressure and therefore can only contain a maximum of 14.7psia of H2S in a gaseous phase. In comparison, very little has been published about fatigue performance in sour environments where negligible amounts or no water is present. Such condition can be found for pipelines serving in a “dry” sour environment (H2S and other gases in dense phase) with high H2S concentration. This pape
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Li, Xin, Xueping Zhang, and Rajiv Shivpuri. "Microstructure Alteration in the High-Speed Machining of Titanium Alloy Involved With Tool Wear and Cryogenic Condition." In ASME 2021 16th International Manufacturing Science and Engineering Conference. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/msec2021-59981.

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Abstract The microstructure alteration generated in the high-speed machining of titanium alloy has significant influence on the performance, quality and service life of production. The prediction of grain size or phase distribution based on physics mechanism or the regression of experimental data have been reported in the process of static or quasi-static state. However, it is still a challenge to predict the phase transformation and grain growth process in machining accurately and effectively since it has characteristics of high strain, strain rate and temperature. In this paper, a novel FEM-
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Roday, Anand P., and Michael J. Kazmierczak. "Phase-Change in Finite Slabs With Time-Dependent Convective Boundary Conditions." In ASME 2004 Heat Transfer/Fluids Engineering Summer Conference. ASMEDC, 2004. http://dx.doi.org/10.1115/ht-fed2004-56734.

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The heat balance integral method is used to solve one-dimensional phase-change problem in a finite slab with time-dependent convective boundary condition, [T∞,1(t)], applied at the left face. The temperature, T∞,1(t), decreases linearly with time; the other face of the slab is subjected to a constant convective boundary condition with T∞,2 held fixed at the ambient temperature. Two initial conditions are investigated: temperature of the solid below the melting point (subcooled), and initially at the fusion temperature (Tf). The temperature, T∞,1(t) at time t = 0 is so chosen such that convecti
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Moghaddam, Saeed, and Kenneth T. Kiger. "Experimental Study of Microscale Bubble Growth and Departure Dynamic Over a Surface With Constant Heat Flux Boundary Condition." In ASME 2003 Heat Transfer Summer Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/ht2003-47240.

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Boiling heat transfer has been the subject of research for many years, with a substantial amount of effort devoted to understanding the microscale transport processes of nucleate boiling. This information is essential to determine appropriate expressions for the boiling heat transfer coefficient. As a result, several different competing models based on the bubbling dynamics and its associated heat transfer mechanisms have been hypothesized to account for the sensible and latent heat transport and liquid motion adjacent to the heat transfer surface. Many of the early models were based on the as
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Li, Y. L., C. L. Ma, and H. Zhang. "Crystallographic Orientation Evolution in NbSS-Nb5Si3 Eutectic Alloys by EBSD Analyses." In ASME Turbo Expo 2013: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/gt2013-95309.

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The progresses in high temperature materials encourage the development of turbine engine in terms of thrust and efficiency. Ni-based superalloys, which are predominant in elevated temperature application, have limited potential to raise serving temperature. In-situ composites, such as Cr-Cr3Si, NiAl-Cr and Nb-Nb5Si3 eutectic alloys, consisting of a ductile metallic phase and a hard intermetallic phase, are attractive candidates to replace Ni-based superalloys. The microstructure and mechanical properties of these in-situ composites are widely investigated. However, little work is focused on cr
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Song, Fubin, and S. W. Ricky Lee. "Experimental Investigation of the Effect of Reflow Cooling Rate on the IMC Growth of SAC Lead-Free Solder Alloy." In ASME 2005 International Mechanical Engineering Congress and Exposition. ASMEDC, 2005. http://dx.doi.org/10.1115/imece2005-82095.

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The present research is conducted to investigate a critical issue for Lead-free solder alloy. Near-ternary eutectic Sn-Ag-Cu alloys have been studied since they are the leading Lead-free candidate solders for various applications. There are three main phases in the near-ternary eutectic alloys: β-Sn rich phase, Ag3Sn and Cu6Sn5. Cooling rate is an important processing factor that affects the microstructure of these alloys and then significantly influences mechanical behavior of the Sn-Ag-Cu solder joints. It is demonstrated that the amount and size of large Ag3Sn plates increase with decreasin
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Chauvin, Camille, Frédéric Zucchini, and David Palma de Barros. "Study on phase transformation in Tin under dynamic compression." In 2019 15th Hypervelocity Impact Symposium. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/hvis2019-027.

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Abstract We propose to study experimentally the polymorphic transition of Tin under dynamic compression. These transformations have been investigated for a long time through usual velocity measurements under shock from ambient condition. At CEA Gramat we have improved our understanding of such phase transformations through both experimental and theoretical means. Experimental velocity measurements have long suggested that non equilibrium behavior and kinetics is an important part of the dynamic compression response of materials undergoing phase transformations. Empirical kinetic models can in
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