Academic literature on the topic 'Crystallization system'

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Journal articles on the topic "Crystallization system"

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Faeghinia, Aida, Roghaieh Nemati, and Mandana Sheikhani. "The Crystallization Kinetic of Te-Li Glass System." International Journal of Materials, Mechanics and Manufacturing 5, no. 1 (February 2017): 24–27. http://dx.doi.org/10.18178/ijmmm.2017.5.1.282.

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Suljkanovic, Midhat, Milovan Jotanovic, Elvis Ahmetovic, Goran Tadic, and Nidret Ibric. "Formalized methodology for the separation of three component electrolytic systems: Partial separation of the system." Chemical Industry 67, no. 4 (2013): 569–83. http://dx.doi.org/10.2298/hemind120808099s.

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This work presents a formalized methodology for salt's separation from three component electrolytic systems. The methodology is based on the multi-variant modelling block of a generalized crystallization process, with options for simulating the boundary conditions of feasible equilibrium processes and the elements of crystallization techniques. The following techniques are considered: cooling crystallization, adiabatic evaporative-cooling crystallization, salt-out crystallization, isothermal crystallization, and a combination of the mentioned techniques. The multi-variant options of the crystallization module are based on different variable sets with assigned values for solving mathematical models of generalized crystallization processes. The first level of the methodology begins with the determination of salt crystallization paths from a hypothetical electrolytic AX-BX-H2O system, following by an examination of salt-cooling crystallization possibilities. The second level determines feasible processes by the communication of a feed-system with the environment through a stream of evaporated water, or introduced water with introduced crystallized BX salt. The third level determines the value intervals of the variables for feasible processes. The methodological logic and possibilities for the created process simulator are demonstrated on examples of sodium sulphate separation from the NaCl-Na2SO4-H2O system, using different salt concentrations within the feed system.
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Adachi, Hiroaki, Hiroyoshi Matsumura, Tsuyoshi Inoue, Ai Niino, Kazufumi Takano, Satoshi Murakami, Yusuke Mori, and Takatomo Sasaki. "Semiautomatic Protein Crystallization System Featuring Crystallization Solution Preparation Function." Japanese Journal of Applied Physics 44, no. 8 (August 5, 2005): 6302–3. http://dx.doi.org/10.1143/jjap.44.6302.

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Gerdts, C., L. Li, Q. Fu, P. Nollert, R. Ismagilov, and L. Stewart. "The microcapillary protein crystallization system." Acta Crystallographica Section A Foundations of Crystallography 64, a1 (August 23, 2008): C596—C597. http://dx.doi.org/10.1107/s0108767308080823.

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Qin, Hong Wu, Xiao Xue Xing, and Xian Zhang. "The Analysis for Crystallization of Sn-Pb Alloys Using Acoustic Emission Testing about Wind Turbine Root Materials." Applied Mechanics and Materials 668-669 (October 2014): 83–86. http://dx.doi.org/10.4028/www.scientific.net/amm.668-669.83.

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Regular researches of system Sn-Pb alloys with use AE are carried out in various crystallization conditions. In the given researches the technique has been used, which allow to divide the signals radiated with plastic deformation and crack's formation and development from each process. In the metals and alloys majority radiation of AE signals begins in the middle of crystallization's area and comes to an end at the moment of the crystallization termination However in a number of materials AE signals have been registered below an excess point on a cooling curve in a firm condition. Essential influence of small impurity on AE feature and is revealed at crystallization AE character with crystallization of pure metals is defined by a kind of a crystal lattice. Linear dependence total AE from cooling rate is established Influence of superfluous and low residual pressure on AE character established with crystallization.
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Slivchenko, Evgeniy S., Vadim N. Isaev, Alexander P. Samarskiy, and Valerian N. Blinichev. "STABILITY OF SUPERCOOLING SOLUTIONS OF CRYSTALLIZATION SYSTEMS IN CLASSICAL THEORY OF NEW PHASE FORMATION." IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENIY KHIMIYA KHIMICHESKAYA TEKHNOLOGIYA 60, no. 5 (June 23, 2017): 88. http://dx.doi.org/10.6060/tcct.2017605.5427.

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Theoretical and experimental evaluations of crystallization systems solutions stability to overcooling were summarized. The general regulariries of the kinetics of the crystallization process are discussed from the standpoint of the classical theory of the formation and growth of new-phase particles. During the analysis of the process of periodic homogeneous crystallization kinetic diagram, three characteristic periods were revealed: the period of resistance to supercooling, the period of crystal growth, and the period of recrystallization. The nature of the processes determining the duration of the characteristic periods has been established. The applicability of the mathematical apparatus of the new phase formation classical theory for calculating the basic and particular functionals of the crystallization system is substantiated. Relations are given that make it possible to calculate the main and particular functionals of the crystallization system stability for supercooling. The analysis of crystallization system category influence on the magnitude of limit supercooling and periodic homogenous crystallization induction period extreme was made. Parameters of the resistance to supercooling of supersaturated aqueous solutions of inorganic and organic substances certain classes under periodic homogeneous crystallization are presented. Conclusions are drawn regarding the position of the main and particular functionals extrema of the crystallization system. The correctness of the conclusions is confirmed by an analysis of the experimental data on the crystallization kinetics of a number of inorganic and organic substances from aqueous and aqueous-organic solvents. On the example of periodic homogeneous crystallization process of the vitamin B1 thiamin bromide from the water-ethanol solution, a complete series of the crystallization system main and particular functionals extremum positions the are constructed. The regularities of the influence of the organic component concentration in a binary solvent on the stability functionals of the crystallization system are noted.Forcitation:Slivchenko E.S., Samarskiy A.P., Isaev V.N., Blinichev V.N. Stability of supercooling solutions of crystallization systems in classical theory of new phase formation. Izv. Vyssh. Uchebn. Zaved. Khim. Khim. Tekhnol. 2017. V. 60. N 5. P. 88-93.
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Orujlu, E. N., A. N. Mammadov, and M. B. Babanly. "3D ANALYTICAL MODELING OF CRYSTALLIZATION SURFACES OF THE MnTe–SnTe–Sb2Te3 SYSTEM." Azerbaijan Chemical Journal, no. 2 (June 29, 2021): 94–100. http://dx.doi.org/10.32737/0005-2531-2021-2-94-100.

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An analytical method was used for 3D modeling of crystallization surfaces of the MnTe–SnTe–Sb2Te3 system based on the existing data of boundary systems and a small number of experimental DTA- measurements. All analytical dependencies temperatures on composition for liquidus of the binary and three-system were obtained using the 2D and 3D options of the OriginLab software. The obtained results allowed us to visualize the crystallization surfaces of the phases based on initial components of the MnTe–SnTe–Sb2Te3 system as a separate form and in one graph
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Suljkanovic, Midhat, Milovan Jotanovic, Elvis Ahmetovic, and Nidret Ibric. "Multivariant simulator for vacuum cooling processes of three component electrolyte systems." Chemical Industry 64, no. 1 (2010): 21–33. http://dx.doi.org/10.2298/hemind1001021s.

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In this paper, a computer aided analysis and synthesis of the crystallization processes from multicomponent electrolyte systems were studied. In addition, the vacuum crystallization processes with adiabatic cooling of the system are presented. The cooling process of a multicomponent electrolyte system can be considered as a process with the concentration of the system and/or the crystallization of the solid phase from the system. Requirements for multivariant options of the process simulator are the result of practical needs in the design of new processes or the improvement of exploitation processes. According to this, there are needs for a simulation of a simple flashing of the system as well as for the vacuum cooling crystallization processes with the cyclic structure. The possibilities of the created process simulator are illustrated on three component electrolyte systems. Application of the process simulator for any other electrolyte systems requires only an update of the thermodynamic model, and physico-chemical properties related to electrolyte system.
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Omarova, Sabina M., Zaira N. Verdieva, Alibek B. Alkhasov, Uhumaali G. Magomedbekov, Patimat A. Arbukhanova, and Nadinbeg N. Verdiev. "PHASE EQUILIBRIA IN SYSTEM (LiF)2 – (NaCl)2 – Na3FSO4." IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENIY KHIMIYA KHIMICHESKAYA TEKHNOLOGIYA 60, no. 10 (November 16, 2017): 4. http://dx.doi.org/10.6060/tcct.20176010.5631.

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The liquidus surface of the quasi-triple system LiF–NaCl–Na3FSO4 was studied by a differential-thermal method of physicochemical analysis. As a result of the studies, the crystallization temperature (554 °C) and the composition of the three-component eutectic, which can be used as a heat accumulator in thermal energy storage devices, are determined. When designing plants based on renewable energy sources, it is necessary to provide storage tanks for the concentration of thermal energy, so that the stored heat energy can be used even in the period of absence of solar radiation. The most suitable for thermal accumulation are salt eutectic mixtures. Priority in this respect is research devoted to the development of compositions as possible with large values of the latent heat of the solid-liquid phase transition. The experiment was carried out on the synchronous thermal analysis unit STA 449 F3 Phoenix, the company Netzsch, designed to operate in the temperature range from room temperature to 1500 ° C in an atmosphere of inert gases (argon). All facet triangle (LiF)2 – (NaCl)2 – Na3FSO4: stable diagonal (LiF)2 – (NaCl)2 of the triple mutual system Li, Na // F, Cl and quasibinary systems: LiF–Na3FSO4; NaCl – Na3FSO4 is of the eutectic type, therefore it can be assumed that a triple eutectic is formed in the system. To determine the thermo physical characteristics of the eutectic composition, the experiment is planned in accordance with the general rules of the projection-thermographic method. The one-dimensional polythermal section AB located in the crystallization field of lithium fluoride, where A is 50% (LiF)2+ 50% Na3FSO4, B is 50% (LiF)2+ 50% (NaCl)2 was experientally studied. The study of the AB section reveals the direction to the triple eutectic, from the poles of lithium fluoride crystallization, i.e. the study of this section revealed a constant ratio of sodium chloride and sulfate-sodium fluoride in the triple eutectic. At the point showing a constant ratio of the two initial components in the eutectic, the thermal effects of the secondary and tertiary crystallizations are combined, and the primary crystallization is fixed at 657 °C. This composition is the starting point for the investigation of the next section. The content of lithium fluoride in the eutectic is determined by studying the polythermal section of lithium fluoride from the crystallization pole and passing through the projection Ē to the side of the triangle (NaCl)2 – Na3FSO4. As a result of the studies, the crystallization temperature and the concentration of the initial salts in the triple eutectic have been established. The detected eutectic composition (EΔ) crystallizes at 554 °C and contains eq. %: (LiF)2 – 26; (NaCl)2 – 23; Na3FSO4 – 51.Forcitation:Omarova S.M., Verdieva Z.N., Alkhasov A.B., Magomedbekov U.G., Arbukhanova P.A., Verdiev N.N. Phase equilibria in system (LiF)2 – (NaCl)2 – Na3FSO4. Izv. Vyssh. Uchebn. Zaved. Khim. Khim. Tekhnol. 2017. V. 60. N 10. P. 4-8
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Baker, D. R., and Armela Freda. "Eutectic crystallization in the undercooled Orthoclase-Quartz-H2O system: experiments and simulations." European Journal of Mineralogy 13, no. 3 (May 29, 2001): 453–66. http://dx.doi.org/10.1127/0935-1221/2001/0013-0453.

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Dissertations / Theses on the topic "Crystallization system"

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Oak, Milind Prabhakar. "Virtual customer driven product design crystallization." Thesis, Massachusetts Institute of Technology, 2001. http://hdl.handle.net/1721.1/91722.

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Wollmann, Georgia. "Crystallization Fields of Polyhalite and its Heavy Metal Analogues." Doctoral thesis, Technische Universitaet Bergakademie Freiberg Universitaetsbibliothek "Georgius Agricola", 2010. http://nbn-resolving.de/urn:nbn:de:bsz:105-qucosa-32906.

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Polyhalite is an abundant distributed mineral in rock salt formations, and considered to respond as a natural heavy metal sink because the Mg2+ ion can be substituted by other bivalent metal ions like Mn2+, Co2+, Ni2+, Cu2+ and Zn2+. One of the quantities needed to predict mineral solubilities in multi-electrolyte solutions is the solubility constant Ksol. Since polyhalite forms slowly over months or years at 298 K, the solid-liquid phase equilibria experiments were accomplished at 313 K. Enthalpies of dissolution were measured and used to extrapolate lnKsol from 313 K to 298 K. Pitzer’s equations have been applied to describe activities of solute and water, with Pitzer parameters estimated from experimental data. The solubility constants for the polyhalites were applied to calculate the solubility equilibria in the quaternary systems K+, M2+, Ca2+ / SO42- // H2O (M = Mg, Mn, Co, Cu, Zn) at 298 K and 313 K, and in case of Mg-polyhalite also in the hexary system Na+, K+, Mg2+, Ca2+ / Cl-, SO42- // H2O.
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Boulay, Emilie. "Amorphous phase separation and crystallization in the BaO-TiO2-SiO2 system: experimental approach and thermodynamic study." Doctoral thesis, Universite Libre de Bruxelles, 2015. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/209133.

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Glass-ceramics are of growing interest due to their enhanced properties compared to the base glasses. More specifically, the control of microstructures is a major challenge as the properties of glass-ceramics are the direct consequences of microstructures. Microstructures can be modified by forming specific crystal phases or by using a prior amorphous phase separation before crystallization. The PhD thesis objectives are to demonstrate that the properties of silicate glasses can be enhanced by controlling their microstructure genesis with composition and thermal process parameters. More specifically, two systems were studied and compared: the BaO-TiO2-SiO2 system and the soda-lime silica Na2O-CaO-SiO2 used industrially. Both systems exhibit a large zone of immiscibility allowing the study of the influence of phase separation on crystallization.

The first system BaO-TiO2-SiO2 has gathered interest from the interesting properties of fresnoite (Ba2TiSi2O8): piezo and pyroelectricity, second harmonic generation and blue/white photoluminescence. Many studies on the stoichiometric composition were conducted to understand and improve those promising properties. However, it was recently suggested that the photoluminescence can be improved with composition exhibiting phase separation. This indicates that the photoluminescence intensity can be improved through a microstructural control. The possible role of a prior amorphous phase separation on the subsequent crystallization has been however the topic of vigorous debates over the last decades and has not yet been clarified, especially regarding the role of the interfaces created by the phase separation. In this PhD, the effect of phase separation on fresnoite crystallization was studied. This had to pass through the calculation of the liquid-liquid immiscibility in the phase diagram in order to select suitable compositions to compare in a systematic study. The systematic study concludes to a surface crystallization mechanism for all non- stoichiometric compositions and shows no influence between amorphous droplets and matrix crystallization. This study was also completed with the investigation of the effect of composition (i.e. SiO2-excess), annealing temperature and prior heat treatment, i.e. heating rate, cooling rate or a prior isothermal step before annealing. It is shown that specific microstructures are obtained depending on the process parameters. Finally, selected compositions and heat treatment show how photoluminescence intensity can be improved by a microstructural control. The highest intensity is obtained with a high crystallization fraction and a maximization of the number of interfaces.

The results obtained in the study of the BaO-TiO2-SiO2 system are extended to the soda-lime-silica system in order to study the effect of phase separation on crystallization. It is shown that cristobalite forma- tion from the surface cannot be avoided and that the involved composition shift inhibits phase separation. It is consequently difficult to observe an interplay. Those studies lead to a general discussion about the criteria allowing to observe an interplay between phase separation and crystallization in oxide glasses.
Doctorat en Sciences de l'ingénieur
info:eu-repo/semantics/nonPublished

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Zeng, Jianming. "Constrained crystallization and depletion in the polymer medium for transdermal drug delivery system." Diss., Georgia Institute of Technology, 2004. http://hdl.handle.net/1853/5102.

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Transdermal drug delivery systems (TDS) are pharmaceutical devices that are designed to deliver specific drugs to the human body by diffusion through skin. The TDS effectiveness suffers from crystallization in the patch when they are kept in storage for more than two years. It has been reported that there are two types of crystals in the patch: needle and aggregate, and growth of drug crystals in TDS generally occurs only in the middle third of the polymer layer. In our study, fluorescence microscopy, EDS (SEM) and Raman microspectroscopy were used to further characterize the crystals. The results show that the needle crystals most probably contain estradiol and acrylic resin conjugate. The FTIR spectrum of the model sample proved the occurrence of a reaction between estradiol and acrylic resin. Crystal growth in an unstressed matrix of a dissolved crystallizable drug component was simulated using a kinetic Monte Carlo model. Simulation using Potts model with proper boundary condition gives the crystals in the middle of matrix in the higher temperature. Bond fluctuation model is also being implemented to study representative dense TDS polymer matrix. This model can account for the size effect of polymer chain on the crystal growth. The drug release profile from TDS was also studied by simulating the diffusion of drug molecules using Monte Carlo techniques for different initial TDS microstructure. The release rate and profile of TDS depend on the dissolution process of the crystal. At low storage temperature, the grains are evenly distributed throughout the thickness of the TDS patch, thus the release rate and profile is similar to the randomly initiated system. Further work on stress induced crystallization is currently under development. Although the study was specifically done for drug in a polymer medium, the techniques developed in this investigation is in general applicable to any constrained crystallization in a polymer medium.
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Kim, Seong-Jin. "Directional crystallization in the bismuth-strontium-calcium-copper-oxygen system: Effect of phase separation." Diss., The University of Arizona, 1992. http://hdl.handle.net/10150/186040.

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Novel unidirectional crystallization was tested in glasses of the Bi-Sr-Ca-Cu-O system to produce highly oriented microstructures. Some evidence of liquid-liquid phase separations on cooling melts of Bi₂Sr₂Ca₁Cu₂Oₓ and Pb₀ͺ₃₂Bi₁ͺ₆₈Sr₁ͺ₇₅Ca₂Cu₃Oₓ is found for the first time from Differential Thermal Analysis (DTA), X-ray Diffraction (XRD), and Transmission Electron Microscope (TEM). This made it difficult to produce highly oriented microstructures through the present route because one of the phases in the phase separated structure is likely close to "R"-phase composition and lead to copious nucleation of "R"-phase on heating. This also resulted in sequential crystallization of the current liquids, first to "R"-phase and then to the Bi₂Sr₂Ca₁Cu₂Oₓ phase. Theoretical modelling was performed to understand general questions in the present route. The model suggests that a liquid with high interfacial energy is a good candidate for the present route to produce highly oriented microstructures. The model was tested in lithium diborate glass and showed a highly oriented microstructure. Thus, unidirectional crystallization is generally an attractive processing option for a liquid free of phase separation.
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Getson, Jacqueline. "Effect of plagioclase crystallization on liquid and magma viscosity in the Anorthite-diopside-dorsterite-quartz system." Diss., Columbia, Mo. : University of Missouri-Columbia, 2006. http://hdl.handle.net/10355/4628.

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Thesis (M.S.) University of Missouri-Columbia, 2006.
The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file viewed on (June 25, 2007) Includes bibliographical references.
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Taylor, Donald Fulton. "Measurement of binary phase equilibria and ternary/quaternary gas antisolvent (GAS) system measurement and analysis." Thesis, Available online, Georgia Institute of Technology, 2004:, 2004. http://etd.gatech.edu/theses/available/etd-07112004-194307/unrestricted/taylor%5Fonald%5Ff%5F200407%5FMS.pdf.

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Thesis (M.S.)--School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, 2005. Directed by Charles Eckert.
Charles Eckert, Committee Chair ; Amyn Teja, Committee Member ; Pete Ludovice, Committee Member. Includes bibliographical references.
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Stanojevic, Sanja [Verfasser], and Ralf [Akademischer Betreuer] Busch. "Processing, crystallization and oxidation of the Ni-Nb(-Sn) refractory alloy glass system / Sanja Stanojevic. Betreuer: Ralf Busch." Saarbrücken : Saarländische Universitäts- und Landesbibliothek, 2013. http://d-nb.info/1053681666/34.

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Liu, Lei. "The link between convection and crystallization in a sub-axial magma chamber and heat output in a seafloor hydrothermal system." Thesis, Available online, Georgia Institute of Technology, 2007, 2007. http://etd.gatech.edu/theses/available/etd-07072007-142506/.

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Xiao, Yi. "Structural study of ExsA, the regulator of Type III Secretion System of Pseudomonas aeruginosa." Thesis, Virginia Tech, 2013. http://hdl.handle.net/10919/50944.

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The Type III secretion system (T3SS) of Pseudomonas aeruginosa uses a needle-like protein apparatus to detect eukaryotic host cells and translocate effectors directly into the host cell. The effectors are also known as cytotoxins, which cause disruption of a series of signaling events in the host cell, facilitating the infection by P. aeruginosa. As the T3SS is antigenic and the expression of T3SS is energy-consuming, it is highly regulated where several regulatory proteins interact with each other and control the expression of T3SS genes. Among these proteins, ExsA, the master regulator of T3SS in P. aeruginosa, is of great importance as it is a transcriptional activator that activates the expression of all T3SS genes. Also, as ExsA belongs to the AraC protein family which only exists in bacteria and fungi, it makes an excellent potential target for drugs against P. aeruginosa related infections. With a combination of molecular biology tools and structural biology methods, we solved the N-terminal domain structure of the ExsA protein in P. aeruginosa. The model of the ExsA N-terminal domain has enriched our knowledge about ExsA dimerization and can serve as the base for mapping the interaction interfaces on ExsA and ExsD. Further, we have found two homologues of ExsA by structural alignment, which share a lot of similarities and have conserved amino acid residues that are important for ligand binding. The fact that both of these two proteins are regulated by small ligands rather than proteins also raises the possibility that ExsA may have a second regulatory mechanism under which ExsA is regulated by a small ligand, which so far has not been observed or reported by researchers. In order to map the binding site of ExsA on its anti-activator ExsD, we removed the coiled-coil region (amino acid residue 138-202, the potential binding site) of ExsD, based on the  structure of ExsD. We surprisingly found that the ExsD variant without the coiled-coil region readily inhibits ExsA-dependent in vitro transcription. This result rules out other possibilities and makes us focus on the N-terminus and adjacent regions of ExsD for the interface with ExsA. Moreover, in order to gain a comprehensive understanding of the dynamics of the regulation of T3SS in P. aeruginosa, we have begun to build a mathematical model of the T3SS regulatory pathways. We are measuring the cellular concentrations of T3SS regulatory proteins with quantitative molecular biology methods such as quantitative western blot, quantitative PCR and quantitative mass spectrometry. We have determined the cellular level of ExsA and ExsD proteins under different physiological conditions, and found that some factors such as temperature have a significant impact on the levels of ExsA and ExsD. This study has thus unveiled some unknown features of the T3SS of P. aeruginosa and its related infections.

Master of Science
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Books on the topic "Crystallization system"

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The crystallization of the Arab state system, 1945-1954. Syracuse: Syracuse University Press, 1993.

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Crystallization process systems. Oxford: Butterworth-Heinemann, 2002.

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Vargin, V. V., ed. Catalyzed Controlled Crystallization of Glasses in the Lithium Aluminosilicate System / Katalizirovannaya Reguliruemaya Kristallizatsiya Stekol Litievoalyumosilikatnoi Sistemy / Катализированная Регулируемая Кристаллизация Стекол Литиеволюмосиликатной Системы. Boston, MA: Springer US, 1995. http://dx.doi.org/10.1007/978-1-4899-4908-0.

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Born, Philip G. Crystallization of Nanoscaled Colloids. Heidelberg: Springer International Publishing, 2013.

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Farrow, Robin F. C. Magnetism and structure in systems of reduced dimension. Boston, MA: Springer, 1993.

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J, Kelly M. Low-dimensional semiconductors: Materials, physics, technology, devices. Oxford: Clarendon Press, 1995.

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Vargin, V. V. Catalyzed Controlled Crystallization of Glasses in the Lithium Aluminosilicate System. Springer, 2014.

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Maddy-Weitzman, Bruce. The Crystallization of the Arab State System Inter-Arab Politics, 1945-1954 (Contemporary Issues in the Middle East). Syracuse University Press, 1992.

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Jones, Alan G. Crystallization Process Systems. Elsevier Science & Technology Books, 2015.

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Jones, Alan G. Crystallization Process Systems. Elsevier Science & Technology Books, 2002.

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Book chapters on the topic "Crystallization system"

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Tavare, Narayan S. "Mixing, Reaction and Precipitation: The Barium Sulphate Precipitation System." In Mixing and Crystallization, 191–203. Dordrecht: Springer Netherlands, 2000. http://dx.doi.org/10.1007/978-94-017-2290-2_17.

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Guenet, J. M. "Crystallization and Gelation in the System iPS/CIS-Decalin and Intermediate Phases." In Crystallization of Polymers, 205–35. Dordrecht: Springer Netherlands, 1993. http://dx.doi.org/10.1007/978-94-011-1950-4_18.

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Schobbert, H., Th Böllinghaus, and M. Wolf. "Metastable Primary Soldification Modes in the Fe-Cr-Ni System During Laser Welding." In Solidification and Crystallization, 213–26. Weinheim, FRG: Wiley-VCH Verlag GmbH & Co. KGaA, 2005. http://dx.doi.org/10.1002/3527603506.ch24.

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Chu, Jian, and Qing Lu. "Design of Automatic Control System of Fructose Crystallization." In Lecture Notes in Electrical Engineering, 371–75. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-27296-7_58.

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Chikanova, Ekaterina S., Olga A. Golovanova, and Marina V. Kuimova. "Kinetic Characteristics of Crystallization in Prototypes of Biological Fluids." In Lecture Notes in Earth System Sciences, 501–15. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-24987-2_38.

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Vargin, V. V. "Crystallization of Lithium Aluminosilicate Glass." In Catalyzed Controlled Crystallization of Glasses in the Lithium Aluminosilicate System / Katalizirovannaya Reguliruemaya Kristallizatsiya Stekol Litievoalyumosilikatnoi Sistemy / Катализированная Регулируемая Кристаллизация Стекол Литиеволюмосиликатной Системы, 67–73. Boston, MA: Springer US, 1995. http://dx.doi.org/10.1007/978-1-4899-4908-0_8.

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Liu, Hongting, and Gisele Azimi. "A Fundamental Investigation of Li2CO3 Crystallization from Li2SO4 System." In Rare Metal Technology 2020, 11–21. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-36758-9_2.

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Kawashima, Yoshiaki. "Particulate-Design Platform Developed by the Advanced Spherical Crystallization System." In Spherical Crystallization as a New Platform for Particle Design Engineering, 35–58. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-6786-1_4.

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Golovanova, Olga A. "Thermodynamics and Kinetics of Crystallization of Mineral Phases of Vascular Calcificates." In Lecture Notes in Earth System Sciences, 59–77. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-21614-6_4.

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Micheletti, A. "Numerical Simulation of a Stochastic System Modelling Nonisothermal Crystallization of Polymers." In Progress in Industrial Mathematics at ECMI 2000, 401–7. Berlin, Heidelberg: Springer Berlin Heidelberg, 2002. http://dx.doi.org/10.1007/978-3-662-04784-2_53.

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Conference papers on the topic "Crystallization system"

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Kumar Sunori, Sandeep, Manoj Thakur, Govind Singh Jethi, and Pradeep Juneja. "Control System Optimization for Sugar Crystallization Process." In 2020 2nd International Conference on Advances in Computing, Communication Control and Networking (ICACCCN). IEEE, 2020. http://dx.doi.org/10.1109/icacccn51052.2020.9362846.

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Kovács, A., P. Hartmann, Z. Donkó, I. Groma, G. Györgyi, Vladimir Yu Nosenko, Padma K. Shukla, Markus H. Thoma, and Hubertus M. Thomas. "Crystallization Dynamics of a 2D Yukawa System." In DUSTY∕COMPLEX PLASMAS: BASIC AND INTERDISCIPLINARY RESEARCH: Sixth International Conference on the Physics of Dusty Plasmas. AIP, 2011. http://dx.doi.org/10.1063/1.3659891.

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Tavazzani, Lorenzo, Rita C. Economos, Jörn-Frederik Wotzlaw, Oscar Laurent, Cyril Chelle-Michou, and Olivier Bachmann. "MODELING ZIRCON GROWTH DURING OPEN-SYSTEM CRYSTALLIZATION." In GSA Connects 2021 in Portland, Oregon. Geological Society of America, 2021. http://dx.doi.org/10.1130/abs/2021am-367757.

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WAN, Feng, Xiao-ming SHI, and Fang-fang FENG. "Development of Control System for Hydrolysis Crystallization Process." In International Conference on Advanced Material Science and Engineeering (AMSE2016). WORLD SCIENTIFIC, 2016. http://dx.doi.org/10.1142/9789813141612_0028.

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Liu, Yaxin, Liguo Chen, and Lining Sun. "Automated Precise Liquid Dispensing System for Protein Crystallization." In 2007 International Conference on Mechatronics and Automation. IEEE, 2007. http://dx.doi.org/10.1109/icma.2007.4304147.

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Homma, Shunji, Jun-Ichi Ishii, Jiro Koga, Shiro Matsumoto, Toshiaki Kikuchi, Takahiro Chikazawa, and Atsuhiro Shibata. "Flowsheet Analysis of U-Pu Co-Crystallization Process as a New Reprocessing System." In 14th International Conference on Nuclear Engineering. ASMEDC, 2006. http://dx.doi.org/10.1115/icone14-89196.

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A new fuel reprocessing system by U-Pu co-crystallization process is proposed and examined by flowsheet analysis. This reprocessing system is based on the fact that hexavalent plutonium in nitric acid solution is co-crystallized with uranyl nitrate, whereas it is not crystallized when uranyl nitrate does not exist in the solution. The system consists of five steps: dissolution of spent fuel, plutonium oxidation, U-Pu co-crystallization as a co-decontamination, re-dissolution of the crystals, and U re-crystallization as a U-Pu separation. The system requires a recycling of the mother liquor from the U-Pu co-crystallization step and the appropriate recycle ratio is determined by flowsheet analysis such that the satisfactory decontamination is achieved. Further flowsheet study using four different compositions of LWR spent fuels demonstrates that the constant ratio of plutonium to uranium in mother liquor from the re-crystallization step is achieved for every composition by controlling the temperature. It is also demonstrated by comparing to the Purex process that the size of the plant based on the proposed system is significantly reduced.
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Liao, Xiaohong, Patricia Garland, and Reinhard Radermacher. "The Modeling of Air-Cooled Absorption Chiller Integration in CHP System." In ASME 2004 International Mechanical Engineering Congress and Exposition. ASMEDC, 2004. http://dx.doi.org/10.1115/imece2004-60308.

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Absorption chillers are well suited for the use of exhaust heat from prime movers, and they improve the heat utilization of Cooling, Heating, and Power (CHP) systems. An air-cooled absorption chiller eliminates the cooling tower and brings considerable advantages as compared to water-cooled chillers. However, the expensive capital cost and crystallization of LiBr (Lithium Bromide) solution in certain operation conditions restrict the commercialization of air-cooled LiBr absorption machines. This paper discusses the feasibility of air-cooled absorption in CHP systems, where the control strategies based on the application can avoid the occurrence of crystallization. By using the fundamental thermodynamic principle, steady-state thermodynamic modeling and simulation have been done in Engineer Equation Solver (EES) to predict the operation of air-cooled absorption chiller integration in CHP systems with special consideration of the crystallization limits. The data of field operation acquired from a CHP system at UMD are used for validation.
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Alexandrova, Irina V., Dmitriy V. Alexandrov, Alexey A. Ivanov, and Aleksey P. Malygin. "Nonlinear dynamics of unsteady-state crystallization of a binary system." In INTERNATIONAL CONFERENCE ON ANALYSIS AND APPLIED MATHEMATICS (ICAAM 2018). Author(s), 2018. http://dx.doi.org/10.1063/1.5049036.

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Hongfei Zuo, Wentao Li, and Junsheng Xiao. "Design of the crystallization monitoring system based on CAN bus." In 2011 Second International Conference on Mechanic Automation and Control Engineering (MACE). IEEE, 2011. http://dx.doi.org/10.1109/mace.2011.5988109.

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Junxia Lu, Jiliang Zhang, and Chanhung Shek. "Crystallization behavior of Ni-Nb-Sb system bulk metallic glass." In 2010 IEEE 3rd International Nanoelectronics Conference (INEC). IEEE, 2010. http://dx.doi.org/10.1109/inec.2010.5425131.

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Reports on the topic "Crystallization system"

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HERTING DL. FRACTIONAL CRYSTALLIZATION LABORATORY TESTING WITH INTERIM PRETREATMENT SYSTEM FEEDS. Office of Scientific and Technical Information (OSTI), September 2008. http://dx.doi.org/10.2172/938409.

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Cullinan, Timothy Edward. Crystallization dynamics in glass-forming systems. Office of Scientific and Technical Information (OSTI), February 2016. http://dx.doi.org/10.2172/1342537.

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Mohammadi, N., D. Corrigan, A. A. Sappin, and N. Rayner. Evidence for a Neoarchean to earliest-Paleoproterozoic mantle metasomatic event prior to formation of the Mesoproterozoic-age Strange Lake REE deposit, Newfoundland and Labrador, and Quebec, Canada. Natural Resources Canada/CMSS/Information Management, 2022. http://dx.doi.org/10.4095/330866.

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A complete suite of bulk major- and trace-elements measurements combined with macroscopic/microscopic observations and mineralogy guided by scanning electron microscope-energy dispersive spectrometry (SEM-EDS) analyses were applied on Nekuashu (2.55 Ga) and Pelland (2.32 Ga) intrusions in northern Canada, near the Strange Lake rare earth elements (REE) deposit, to evaluate their magmatic evolution and possible relations to the Mesoproterozoic Strange Lake Peralkaline Complex (SLPC). These Neoarchean to earliest-Paleoproterozoic intrusions, part of the Core Zone in southeastern Churchill Province, comprise mainly hypersolvus suites, including hornblendite, gabbro, monzogabbro/monzodiorite, monzonite, syenite/augite-syenite, granodiorite, and mafic diabase/dyke. However, the linkage of the suites and their petrogenesis are poorly understood. Geochemical evidence suggests a combination of 'intra-crustal multi-stage differentiation', mainly controlled by fractional crystallization (to generate mafic to felsic suites), and 'accumulation' (to form hornblendite suite) was involved in the evolution history of this system. Our model proposes that hornblendite and mafic to felsic intrusive rocks of both intrusions share a similar basaltic parent magma, generated from melting of a hydrous metasomatized mantle source that triggered an initial REE and incompatible element enrichment that prepared the ground for the subsequent enrichment in the SLPC. Geochemical signature of the hornblendite suite is consistent with a cumulate origin and its formation during the early stages of the magma evolution, however, the remaining suites were mainly controlled by 'continued fractional crystallization' processes, producing more evolved suites: gabbronorite/hornblende-gabbro ? monzogabbro/monzodiorite ? monzonite ? syenite/augite-syenite. In this proposed model, the hydrous mantle-derived basaltic magma was partly solidified to form the mafic suites (gabbronorite/hornblende-gabbro) by early-stage plagioclase-pyroxene-amphibole fractionation in the deep crust while settling of the early crystallized hornblende (+pyroxene) led to the formation of the hornblendite cumulates. The subsequent fractionation of plagioclase, pyroxene, and amphibole from the residual melt produced the more intermediate suites of monzogabbro/monzodiorite. The evolved magma ascended upward into the shallow crust to form monzonite by K-feldspar fractionation. The residual melt then intruded at shallower depth to form syenite/augite-syenite with abundant microcline crystals. The granodiorite suite was probably generated from lower crustal melts associated with the mafic end members. Later mafic diabase/dykes were likely generated by further partial melting of the same source at depth that were injected into the other suites.
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Neyedley, K., J. J. Hanley, Z. Zajacz, and M. Fayek. Accessory mineral thermobarometry, trace element chemistry, and stable O isotope systematics, Mooshla Intrusive Complex (MIC), Doyon-Bousquet-LaRonde mining camp, Abitibi greenstone belt, Québec. Natural Resources Canada/CMSS/Information Management, 2021. http://dx.doi.org/10.4095/328986.

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The Mooshla Intrusive Complex (MIC) is an Archean polyphase magmatic body located in the Doyon-Bousquet-LaRonde (DBL) mining camp of the Abitibi greenstone belt, Québec, that is spatially associated with numerous gold (Au)-rich VMS, epizonal 'intrusion-related' Au-Cu vein systems, and shear zone-hosted (orogenic?) Au deposits. To elucidate the P-T conditions of crystallization, and oxidation state of the MIC magmas, accessory minerals (zircon, rutile, titanite) have been characterized using a variety of analytical techniques (e.g., trace element thermobarometry). The resulting trace element and oxythermobarometric database for accessory minerals in the MIC represents the first examination of such parameters in an Archean magmatic complex in a world-class mineralized district. Mineral thermobarometry yields P-T constraints on accessory mineral crystallization consistent with the expected conditions of tonalite-trondhjemite-granite (TTG) magma genesis, well above peak metamorphic conditions in the DBL camp. Together with textural observations, and mineral trace element data, the P-T estimates reassert that the studied minerals are of magmatic origin and not a product of metamorphism. Oxygen fugacity constraints indicate that while the magmas are relatively oxidizing (as indicated by the presence of magmatic epidote, titanite, and anhydrite), zircon trace element systematics indicate that the magmas were not as oxidized as arc magmas in younger (post-Archean) porphyry environments. The data presented provides first constraints on the depth and other conditions of melt generation and crystallization of the MIC. The P-T estimates and qualitative fO2 constraints have significant implications for the overall model for formation (crystallization, emplacement) of the MIC and potentially related mineral deposits.
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Brenan, J. M., K. Woods, J. E. Mungall, and R. Weston. Origin of chromitites in the Esker Intrusive Complex, Ring of Fire Intrusive Suite, as revealed by chromite trace element chemistry and simple crystallization models. Natural Resources Canada/CMSS/Information Management, 2021. http://dx.doi.org/10.4095/328981.

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To better constrain the origin of the chromitites associated with the Esker Intrusive Complex (EIC) of the Ring of Fire Intrusive Suite (RoFIS), a total of 50 chromite-bearing samples from the Black Thor, Big Daddy, Blackbird, and Black Label chromite deposits have been analysed for major and trace elements. The samples represent three textural groups, as defined by the relative abundance of cumulate silicate phases and chromite. To provide deposit-specific partition coefficients for modeling, we also report on the results of laboratory experiments to measure olivine- and chromite-melt partitioning of V and Ga, which are two elements readily detectable in the chromites analysed. Comparison of the Cr/Cr+Al and Fe/Fe+Mg of the EIC chromites and compositions from previous experimental studies indicates overlap in Cr/Cr+Al between the natural samples and experiments done at >1400oC, but significant offset of the natural samples to higher Fe/Fe+Mg. This is interpreted to be the result of subsolidus Fe-Mg exchange between chromite and the silicate matrix. However, little change in Cr/Cr+Al from magmatic values, owing to the lack of an exchangeable reservoir for these elements. A comparison of the composition of the EIC chromites and a subset of samples from other tectonic settings reveals a strong similarity to chromites from the similarly-aged Munro Township komatiites. Partition coefficients for V and Ga are consistent with past results in that both elements are compatible in chromite (DV = 2-4; DGa ~ 3), and incompatible in olivine (DV = 0.01-0.14; DGa ~ 0.02), with values for V increasing with decreasing fO2. Simple fractional crystallization models that use these partition coefficients are developed that monitor the change in element behaviour based on the relative proportions of olivine to chromite in the crystallizing assemblage; from 'normal' cotectic proportions involving predominantly olivine, to chromite-only crystallization. Comparison of models to the natural chromite V-Ga array suggests that the overall positive correlation between these two elements is consistent with chromite formed from a Munro Township-like komatiitic magma crystallizing olivine and chromite in 'normal' cotectic proportions, with no evidence of the strong depletion in these elements expected for chromite-only crystallization. The V-Ga array can be explained if the initial magma responsible for chromite formation is slightly reduced with respect to the FMQ oxygen buffer (~FMQ- 0.5), and has assimilated up to ~20% of wall-rock banded iron formation or granodiorite. Despite the evidence for contamination, results indicate that the EIC chromitites crystallized from 'normal' cotectic proportions of olivine to chromite, and therefore no specific causative link is made between contamination and chromitite formation. Instead, the development of near- monomineralic chromite layers likely involves the preferential removal of olivine relative to chromite by physical segregation during magma flow. As suggested for some other chromitite-forming systems, the specific fluid dynamic regime during magma emplacement may therefore be responsible for crystal sorting and chromite accumulation.
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Neyedley, K., J. J. Hanley, P. Mercier-Langevin, and M. Fayek. Ore mineralogy, pyrite chemistry, and S isotope systematics of magmatic-hydrothermal Au mineralization associated with the Mooshla Intrusive Complex (MIC), Doyon-Bousquet-LaRonde mining camp, Abitibi greenstone belt, Québec. Natural Resources Canada/CMSS/Information Management, 2021. http://dx.doi.org/10.4095/328985.

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The Mooshla Intrusive Complex (MIC) is an Archean polyphase magmatic body located in the Doyon-Bousquet-LaRonde (DBL) mining camp of the Abitibi greenstone belt, Québec. The MIC is spatially associated with numerous gold (Au)-rich VMS, epizonal 'intrusion-related' Au-Cu vein systems, and shear zone-hosted (orogenic?) Au deposits. To elucidate genetic links between deposits and the MIC, mineralized samples from two of the epizonal 'intrusion-related' Au-Cu vein systems (Doyon and Grand Duc Au-Cu) have been characterized using a variety of analytical techniques. Preliminary results indicate gold (as electrum) from both deposits occurs relatively late in the systems as it is primarily observed along fractures in pyrite and gangue minerals. At Grand Duc gold appears to have formed syn- to post-crystallization relative to base metal sulphides (e.g. chalcopyrite, sphalerite, pyrrhotite), whereas base metal sulphides at Doyon are relatively rare. The accessory ore mineral assemblage at Doyon is relatively simple compared to Grand Duc, consisting of petzite (Ag3AuTe2), calaverite (AuTe2), and hessite (Ag2Te), while accessory ore minerals at Grand Duc are comprised of tellurobismuthite (Bi2Te3), volynskite (AgBiTe2), native Te, tsumoite (BiTe) or tetradymite (Bi2Te2S), altaite (PbTe), petzite, calaverite, and hessite. Pyrite trace element distribution maps from representative pyrite grains from Doyon and Grand Duc were collected and confirm petrographic observations that Au occurs relatively late. Pyrite from Doyon appears to have been initially trace-element poor, then became enriched in As, followed by the ore metal stage consisting of Au-Ag-Te-Bi-Pb-Cu enrichment and lastly a Co-Ni-Se(?) stage enrichment. Grand Duc pyrite is more complex with initial enrichments in Co-Se-As (Stage 1) followed by an increase in As-Co(?) concentrations (Stage 2). The ore metal stage (Stage 3) is indicated by another increase in As coupled with Au-Ag-Bi-Te-Sb-Pb-Ni-Cu-Zn-Sn-Cd-In enrichment. The final stage of pyrite growth (Stage 4) is represented by the same element assemblage as Stage 3 but at lower concentrations. Preliminary sulphur isotope data from Grand Duc indicates pyrite, pyrrhotite, and chalcopyrite all have similar delta-34S values (~1.5 � 1 permille) with no core-to-rim variations. Pyrite from Doyon has slightly higher delta-34S values (~2.5 � 1 permille) compared to Grand Duc but similarly does not show much core-to-rim variation. At Grand Duc, the occurrence of Au concentrating along the rim of pyrite grains and associated with an enrichment in As and other metals (Sb-Ag-Bi-Te) shares similarities with porphyry and epithermal deposits, and the overall metal association of Au with Te and Bi is a hallmark of other intrusion-related gold systems. The occurrence of the ore metal-rich rims on pyrite from Grand Duc could be related to fluid boiling which results in the destabilization of gold-bearing aqueous complexes. Pyrite from Doyon does not show this inferred boiling texture but shares characteristics of dissolution-reprecipitation processes, where metals in the pyrite lattice are dissolved and then reconcentrated into discrete mineral phases that commonly precipitate in voids and fractures created during pyrite dissolution.
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