Добірка наукової літератури з теми "METALLIC AND INORGANIC"

Оформте джерело за APA, MLA, Chicago, Harvard та іншими стилями

Оберіть тип джерела:

Ознайомтеся зі списками актуальних статей, книг, дисертацій, тез та інших наукових джерел на тему "METALLIC AND INORGANIC".

Біля кожної праці в переліку літератури доступна кнопка «Додати до бібліографії». Скористайтеся нею – і ми автоматично оформимо бібліографічне посилання на обрану працю в потрібному вам стилі цитування: APA, MLA, «Гарвард», «Чикаго», «Ванкувер» тощо.

Також ви можете завантажити повний текст наукової публікації у форматі «.pdf» та прочитати онлайн анотацію до роботи, якщо відповідні параметри наявні в метаданих.

Статті в журналах з теми "METALLIC AND INORGANIC"

1

"Non-metallic inorganic." Materials and Corrosion/Werkstoffe und Korrosion 44, no. 7 (July 1993): R183. http://dx.doi.org/10.1002/maco.19930440716.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
2

"Non-metallic inorganic materials." Materials and Corrosion/Werkstoffe und Korrosion 41, no. 5 (May 1990): R128—R129. http://dx.doi.org/10.1002/maco.19900410519.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
3

"Non-metallic inorganic coatings." Materials and Corrosion/Werkstoffe und Korrosion 41, no. 5 (May 1990): R132—R134. http://dx.doi.org/10.1002/maco.19900410522.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
4

"Non-metallic inorganic materials." Materials and Corrosion/Werkstoffe und Korrosion 41, no. 6 (June 1990): R150—R151. http://dx.doi.org/10.1002/maco.19900410615.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
5

"Non-metallic inorganic coatings." Materials and Corrosion/Werkstoffe und Korrosion 41, no. 6 (June 1990): R152. http://dx.doi.org/10.1002/maco.19900410618.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
6

"Non-metallic inorganic materials." Materials and Corrosion/Werkstoffe und Korrosion 41, no. 7 (July 1990): R170. http://dx.doi.org/10.1002/maco.19900410713.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
7

"Non-metallic inorganic coatings." Materials and Corrosion/Werkstoffe und Korrosion 41, no. 7 (July 1990): R171—R172. http://dx.doi.org/10.1002/maco.19900410715.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
8

"Non-metallic inorganic materials." Materials and Corrosion/Werkstoffe und Korrosion 41, no. 8 (August 1990): R194. http://dx.doi.org/10.1002/maco.19900410817.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
9

"Non-metallic inorganic coatings." Materials and Corrosion/Werkstoffe und Korrosion 41, no. 8 (August 1990): R195—R196. http://dx.doi.org/10.1002/maco.19900410820.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
10

"Non-metallic inorganic materials." Materials and Corrosion/Werkstoffe und Korrosion 41, no. 9 (September 1990): R214—R215. http://dx.doi.org/10.1002/maco.19900410916.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.

Дисертації з теми "METALLIC AND INORGANIC"

1

To, Theany. "Fracture toughness and fracture surface energy of inorganic and non-metallic glasses." Thesis, Rennes 1, 2019. http://www.theses.fr/2019REN1S013/document.

Повний текст джерела
Анотація:
La ténacité et l’énergie de surface de fracture de verres, de vitrocéramiques et de composites à matrice en verre ont été étudiées. Tout d'abord, un test de flexion bi-axiale (configuration anneau/anneau) a été réalisé sur des verres de silice et des verre-à-vitres avec différentes conditions de surface afin d’identifier la relation entre le défaut de surface, la résistance et la ténacité du verre. Ensuite, trois méthodes d’expérimentation ont été mises en œuvre, principalement la méthode de poutre de flexion à pré-entaille droit (SEPB), la méthode de la poutre entaillée en chevron (CNB) et la méthode de la poutre avec indentations Vickers (VIF), afin de déterminer la ténacité de quatre verres produits industriellement et de déterminer les avantages et les inconvénients des différents méthodes sélectionnées. La méthode qui est apparue la plus fiable et auto-cohérente, la méthode SEPB (Single Edge Precrack Beam), a été appliquée à la détermination de la ténacité de nombreux verres et vitrocéramiques, afin d’étudier l’influence de la composition et de la microstructure sur les caractéristiques de fissuration (KIC et énergie de fissuration, γ). Enfin, l’influence de la température et de l'environnement sur la ténacité a été étudiée à l'aide de la méthode SEPB. Deux verres d'oxyde ont été testés à des températures élevées et avec une vitesse de charge de 10 MPa∙√m/s, une température de transition de 1,11Tg a été trouvée. Quatre autres verres d'oxyde ont été testés en environnement inerte et les mêmes valeurs de ténacité ont été obtenues à partir de deux vitesses de charge (100 fois) différentes
Fracture toughness and fracture surface energy of commercial and laboratory glasses, glass-ceramics and glass matrix composites have been studied. First, bi-axial bending test (RoR configuration) was performed on fused silica and window float glasses with different surface conditions to identify the relationship between the surface flaw, the strength and fracture toughness. After, three experiment methods, mainly single-edge precracked beam (SEPB), chevron-notched beam (CNB) and Vickers indentation fracture (VIF) were performed to determine the fracture toughness of four commercial known glasses and to determine the advantages and inconveniences of the different selected methods. The method that is appeared as the most reliable and self-consistent, the SEPB (Single Edge Precrack Beam) method, was applied to determine the toughness of the large amount of glasses and glass-ceramics, to study the influence of the composition and the microstructure on the characteristics of cracking (KIC and fracture energy, γ). Last but not least, the influence of the temperature and environment on the fracture toughness was studied by means of the SEPB method. Two oxide glasses were tested in elevated temperatures and with the loading rate of 10 MPa∙√m/s, a transition temperature of 1.11Tg was found. Four other oxide glasses were tested in the inert environment and the same fracture toughness values were obtained from (100 times) two different cross-head speeds
Стилі APA, Harvard, Vancouver, ISO та ін.
2

Smith, Sarah. "Synthesis and Characterization of Metallic Nanoparticles for Catalytic Applications." VCU Scholars Compass, 2017. http://scholarscompass.vcu.edu/etd/4803.

Повний текст джерела
Анотація:
In recent years, research has focused on reducing the cost of catalysts in a variety of ways including using less expensive materials, improving the synthetic method, and increasing the catalytic activity, recovery, and recyclability. Typically with nanoparticles, the size, shape, composition, and surface coating have an effect on catalytic activity.1-2 In this work, we focused on reducing the cost of precious metal based catalysts by altering the synthetic methods. One way to lower the cost of synthesizing precious metal nanoparticles is by debasing the precious metal with a second cheaper more abundant metal. CuPd nanoparticles were synthesized in oleylamine and displayed catalytic activity in several cross-coupling reactions. Due to copper being present in the nanoparticle, a copper halide co-catalyst was not needed for Sonogashira cross coupling to be successful.3 While this method produced reactive catalysts, low product yield hinders its application for industry. Solution based synthesis of metallic nanoparticles typically require long reaction times and high temperatures, which make large scale production of nanoparticles on an industrial scale difficult.4-5 The use of continuous flow microreactors provides greater control of synthetic parameters, leading to lower batch-to-batch variability and increasing the efficient of heat and mass transfer and have been applied to the synthesis of metals, semiconductors, zeolites, organic compounds, and semiconductors.5-7 To compare continuous flow methods to benchtop reactions, a well-characterized benchtop reaction synthesizing Cu@Ni core/shell nanoparticles was successfully transferred to a flow reactor set-up. Cu@Ni nanoparticles were synthesized using a capillary microreactor in under 1 minute compared to the 1 hour reaction on benchtop with similar properties in a green solvent.2 The Cu@Ni nanocomposites were active towards the Fischer Tropsch reaction.8 2 nm platinum nanoparticles and platinum bimetallic alloys were synthesized in water using a capillary microwave flow reactor. Investigations showed the nanoparticles were activity toward hydrogenation of octene. With further development, continuous flow synthesis of metallic nanoparticles can be applied to the synthesis of a wide variety of catalysts on an industrial scale. Continuous flow methods provide greater control of reaction parameters, increased safety by reacting smaller volumes of chemicals at a given time, and decreasing the batch-to-batch variability.
Стилі APA, Harvard, Vancouver, ISO та ін.
3

Veitch, Paul M. "A study of organo-metallic compounds containing transition and main group elements with mixed and thio ligands." Thesis, Edinburgh Napier University, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.328837.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
4

Brennan, Daniel P. "Small molecule and polymer templating of inorganic materials." Diss., Online access via UMI:, 2006.

Знайти повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
5

Han, Qi. "Chemically modified electrodes with inorganic films of noble metal complexes and metal oxides : preparation, characterization and applications /." View Abstract or Full-Text, 2002. http://library.ust.hk/cgi/db/thesis.pl?CHEM%202002%20HAN.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
6

Di, Pietro Patrizia. "Hybrid organic-inorganic nanomaterials for applications at the biointerfaces." Doctoral thesis, Università di Catania, 2017. http://hdl.handle.net/10761/3843.

Повний текст джерела
Анотація:
In the last few years, the application of nanomaterials (NMs) as theranostic devices, which combine diagnostic and therapeutic features, has gained a tremendous interest and development. Still, the major challenge is the understanding of the many and often complex processes that occur during the interaction of biological compounds with nanomaterials, in order to modulate their responses to the fixed target. A fine development of such smart nanosystems could occur only by a critical control of chemical/physical properties of NMs at the biological interfaces. According to such premises, this thesis deals with the investigation of NMs at the biointerfaces for potential theranostic applications. Specifically, the work has been addressed to the synthesis and characterization of several inorganic and organic nanomaterials, including gold and silver nanoparticles, hydroxyapatite, graphene and graphene oxide nanosheets tailored at the surface with stimuli-responsive polymers (polyacrylate and/or polyacrylamide) or specific chemical functionalities (amine functionalisation, sulphur functionalisation). As to the biomolecular counterpart, the performed study involved proteins (ferritin and albumin), drugs (curcumin), peptides mimicking proteins of relevant biomedical interest (such as RGD - the cell adhesive sequence of several extracellular matrix proteins-, neurotrophin peptides, fragments of the vascular endothelial growth factor), artificial membranes (lipid liposomes and supported lipid bilayers), and cells (neuroblastoma, endothelial cells, retinal pigment epithelial cells). The hybrid nano-bio-interface between the chosen NMs and biomolecules was scrutinized by a multi-technique approach, which relies on various physico-chemical spectroscopic (UV-visible, FT-IR, RAMAN, X-ray photoelectron spectroscopy), microscopic (atomic force microscopy, scanning electron microscopy, transmission electron microscopy, laser scanning confocal microscopy) and spectrometric (Time-of-Flight secondary ion mass spectrometry) methods. The research methodology used was interdisciplinary as well as the performed research, also including some biological assays on cell viability, nanoparticle internalisation by cellular uptake and nanotoxicity. The obtained results suggest promising applications for further development of these smart nanosystems for theranostic purposes.
Стилі APA, Harvard, Vancouver, ISO та ін.
7

Matencio, Lloberas Sonia. "An STM/FM-AFM investigation of selected organic and inorganic 2D systems on metallic surfaces." Doctoral thesis, Universitat de Barcelona, 2015. http://hdl.handle.net/10803/347213.

Повний текст джерела
Анотація:
Organic/inorganic interfaces play a key role in organic electronic devices such as organic light emitting diodes (OLED), organic field effect transistors (OFET) and organic solar cells (OSC). In these interfaces crucial processes such as charge injection or extraction take place. Improving the performance of these devices has the potential to result in more efficient sources of lighting, printable electronics, and highly scalable solar energy harvesting. With this aim, a solid understanding at atomic level of the structural and electronic properties of organic/inorganic interfaces is needed. The research presented in this thesis is based on scanning probe microscopies which are powerful techniques to probe and manipulate the electronic and structure at atomic scale. The structural and electronic properties of selected organic and inorganic 2D systems on metallic surfaces have been investigated by a combined scanning tunneling microscopy (STM) and frequency modulation atomic force microscopy (FM-AFM) in ultra-high vacuum conditions and at room temperature. The combination of these local probe techniques permits elucidating the interface structure at atomic level and disentangle electronic from topographic information. Particular attention has been dedicated to the measure and interpretation of the local work function. Cuprous oxide (Cu2O) is an intrinsic p-type semiconductor. Copper oxide ultrathin films have been suggested to be candidates as low resistance electrodes, catalysts, sensing materials and semiconductor materials for solar cell transformation. However the properties of ultrathin film may differ from those of the bulk material. With the aim of increasing the actual knowledge, an atomic thin film of copper oxide has been grown on Cu(111) by air-enriched argon sputtering plus annealing. Several structures have been found and the local work function has been evaluated by contact potential difference and distance spectroscopies. Its structural and electronic properties are presented in Chapters 5 and 6. Several organic molecules have been investigated on different surfaces: perylene-3,4,9,10-tetracarboxylic anhydride (PTCDA), diindenoperylene (DIP) and chloroaluminum phthalocyanine (ClAlPc). All of them are small pi-conjugated molecules that have been grown by molecular beam deposition and are served as model systems for a basic understanding of organic/inorganic interfaces. The choice of the selected molecules has been motivated by the distinct chemical and physical properties: PTCDA is a perylene derivate molecule with two anhydride end groups that has an electrical quadrupole moment and forms ordered films by hydrogen bonding, ClAlPc is a phthalocyanine that has a dipole moment perpendicular to the pi-plane of the molecule and DIP is another perylene derivate that is composed only by carbon and hydrogen atoms and forms films only by van der Waals interaction. The structural and electronic properties of a monolayer of PTCDA on Si(111)7x7 and AgSi(111) have been studied and are presented in Chapter 7. A monolayer of DIP on the Cu(111) surface and a monolayer and bilayer of ClAlPc on Au(111) are shown in Chapter 8 and Chapter 9, respectively. The final structure of these molecules on the surfaces is a competition between intermolecular and molecule-substrate forces. In the organic/metal interface many complex processes can occur such as charge transfer, charge rearrangement and push back effect, affecting the work function in a non trivial way what has been evaluated in all the mentioned systems.
En los dispositivos basados en semiconductores, las interfases entre material metálico y material semiconductor juegan un papel importante en el funcionamiento final de dichos dispositivos. Algunos ejemplos de dispositivos son las celdas solares, los diodos emisores de luz y los transistores de efecto campo. En las interfases metal/semiconductor se producen muchos de los procesos fundamentales para el correcto funcionamiento de éstos, como la inyección de carga o la separación de excitones. La optimización de dichos procesos requiere un sólido conocimiento a nivel atómico de las interfases desde un punto de vista estructural y electrónico. Por consiguiente, en esta tesis se han estudiado una serie de sistemas bidimensionales orgánicos e inorgánicos crecidos sobre diferentes superficies metálicas mediante microscopía de sonda próxima, una de las técnicas más potentes en el campo de la nanotecnología. Concretamente se ha utilizado un microscopio combinado de efecto túnel (STM) y de fuerzas atómicas (AFM), en condiciones de ultra alto vacío y a temperatura ambiente. Capas delgadas de óxido de cobre (Cu2O) han sido ampliamente utilizadas por sus óptimas propiedades en catálisis y como material semiconductor en celdas solares. Con el fin de estudiar las propiedades estructurales y electrónicas, se han crecido capas ultra delgadas (un átomo de grosor) de Cu2O sobre una superficie de cobre (111). Diferentes técnicas han sido utilizadas para su caracterización estructural y electrónica. Por otro lado, otro de los materiales semiconductores utilizados en el desarrollo de futuras celdas solares son capas finas formadas por moléculas orgánicas semiconductoras. A pesar de que se podrían utilizar muchas moléculas para la fabricación de dispositivos orgánicos, las moléculas pequeñas conjugadas son especialmente interesantes debido al bajo peso molecular, su estabilidad ante la polimerización y ante la descomposición térmica. Dichas moléculas pueden ser sublimadas en condiciones de ultra alto vacío mediante crecimiento epitaxial por haces de moléculas orgánicas. En el transcurso de esta tesis, varias moléculas orgánicas han sido crecidas sobre diferentes superficies metálicas: perileno tetracarboxílico dianhídrido (PTCDA), diindenoperileno (DIP) y ftalocianina de cloro y aluminio (ClAlPc). Su caracterización estructural y la medida e interpretación de la función de trabajo local se han presentado en esta tesis.
Стилі APA, Harvard, Vancouver, ISO та ін.
8

Gao, Xiaonan. "Sol-Gel Assembly of Metal Nanostructures into Metallic Gel Frameworks and Their Applications." VCU Scholars Compass, 2016. http://scholarscompass.vcu.edu/etd/4319.

Повний текст джерела
Анотація:
The advent of nanoscience and nanotechnology has sparked many research forefronts in the creation of materials with control over size, shape, composition, and surface properties.1,2 However, for most of the applications, nanoscale materials need to be assembled into functional nanostructures that exhibit useful and controllable physical properties. Therefore, numerous efforts on the assembly of nanoparticles (NPs) using organic ligands, polymers and polyelectrolytes have been reported.3,4 However, the interactions between NPs are mediated by intervening ligands, which are detrimental to charge transport and limit the thermal stability. Hence, developing a new method to produce solid state nanostructures with direct NP linkage has become a significant challenge. To avoid the bridging ligands and improve the conductivity of NP based solid state structures, a novel strategy has been developed in which colloidal NPs undergo condensation to wet “jello-like” hydrogel with direct interfacial linkage. Then hydrogels can be dried supercritically to produce aerogels.5 Resultant nanostructures exhibit low densities, large open interconnected pores, and high internal surface areas and are containing entirely of colloidal metal NPs.6 Since noble metal NPs have been widely used in applications such as catalysts, sensors, and novel electrochemical device components, we herein expanded the sol-gel method to noble metal NPs to produce a new class of metal aerogels. In the dissertation, the synthesis of hollow Ag hollow NPs, Au/Ag alloy NPs, and Au/Pt/Ag alloy hollow NPs with tunable sizes and physical properties, and their oxidative-assembly into high-surface-area, mesoporous, self-supported gel framework has been achieved. The gelation kinetics have been controlled by tuning the oxidant/thiolate molar ratio that governs the rate of NP condensation, which in turn determines the morphology, optical transparency, surface area, and porosity of the gel frameworks. These low-density mesoporous nano-architectures displaying optical transparency or opacity, enormously surface area, and interconnected meso-to-macro pore structure are promising candidates for catalytic, electrocatalytic, and SERS-based sensing applications. The SERS activity of Au/Ag alloy aerogels has been studied and significant signal enhancement was achieved. The performance of the Au/Pt/Ag aerogel towards methanol oxidation reaction has been studied via cyclic voltammetry and significant electro-catalytic activity was observed.
Стилі APA, Harvard, Vancouver, ISO та ін.
9

Peterson, Alisha D. "Synthesis and Characterization of Novel Nanomaterials: Gold Nanoshells with Organic- Inorganic Hybrid Cores." Scholar Commons, 2010. http://scholarcommons.usf.edu/etd/3612.

Повний текст джерела
Анотація:
Gold nanoshells, a material generally composed of a core of silica surrounded by a thin shell of gold, are of great interest due to their unique and tunable optical properties. By varying the shell thickness and core size, the absorption and scattering properties are greatly enhanced. The nanoshells can be made to absorb or scatter light at various regions across the electromagnetic spectrum, from visible to the near infrared. The ability to tune the optical properties of nanoshells allows for their potential use in many different areas of research such as optical imaging, tumor ablation, drug delivery, and solar energy conversion. The research in this thesis focused on the synthesis and characterization of two novel gold nanoshell materials containing thermally-responsive, organic-inorganic hybrid layers. One type of material was based on a two-layer particle with a thermally responsive hybrid core of N-isopropylacrylamide (NIPAM) copolymerized with 3-(trimethoxysilyl)propyl methacrylate (MPS) that was then coated with a thin layer of gold. The second material was a three-layer particle with a silica core, a thermally responsive copolymer of NIPAM and MPS middle layer and an outer shell of gold. Various techniques were used to characterize both materials. Transmission electron microscopy (TEM) was used to image the particles and dynamic light scattering (DLS) was used to determine particle size and the temperature response. Additionally, UV-Vis spectroscopy was used to characterize the optical properties as a function of temperature.
Стилі APA, Harvard, Vancouver, ISO та ін.
10

Yucelen, Gulfem Ipek. "Formation and growth mechanisms of single-walled metal oxide nanotubes." Diss., Georgia Institute of Technology, 2012. http://hdl.handle.net/1853/44796.

Повний текст джерела
Анотація:
Single-walled metal oxide nanotubes have emerged as an important class of 'building block' materials for molecular recognition-based applications in catalysis, separations, sensing, and molecular encapsulation due to their vast range of potentially accessible compositions and structures, and their unique properties such as well-defined wall structure and porosity, tunable dimensions, and chemically modifiable interior and exterior surfaces. However, their widespread application will depend on the development of synthesis processes that can yield structurally and compositionally well-controlled nanotubes. Moreover, such processes should be amenable to scale-up and preferably operate via benign chemistries under mild conditions. There is currently very little knowledge on the molecular-level 'design rules' underlying the engineering of such materials. The capability to engineer single-walled tubular materials would lead to a range of structures, with novel properties relevant to diverse applications. In this thesis, main objectives are to discover the first molecular-level mechanistic framework governing the formation and growth of single-walled metal-oxide nanotubes, apply this framework to demonstrate the engineering of nanotubular materials of controlled dimensions, and to progress towards a quantitative multiscale understanding of nanotube formation. The class of aluminosilicate (AlSiOH)/germanate (AlGeOH) nanotubes are of particular interest to us, and serve as the exemplar materials for single-walled metal oxide nanotubes. They can be synthesized in pure form from inexpensive and easily accessible reactants at low temperatures (95 ˚C) from aqueous solutions. The synthesis of nanotubes occurs on a time-scale of hours to days, making them an ideal model system to study the nanotube formation mechanism. In Chapter 2, the identification and elucidation of the mechanistic role of molecular precursors and nanoscale (1-3 nm) intermediates with intrinsic curvature, in the formation of single-walled aluminosilicate nanotubes is reported. The structural and compositional evolution of molecular and nanoscale species over a length scale of 0.1-100 nm, are characterized by electrospray ionization (ESI) mass spectrometry, and nuclear magnetic resonance (NMR) spectroscopy. DFT calculations revealed the intrinsic curvature of nanoscale intermediates with bonding environments similar to the structure of the final nanotube product. It is shown that curved nano-intermediates form in aqueous synthesis solutions immediately after initial hydrolysis of reactants at 25 ˚C, disappear from the solution upon heating to 95 ˚C due to condensation, and finally rearrange to form ordered single-walled aluminosilicate nanotubes. Integration of all results leads to the construction of the first molecular-level mechanism of single-walled metal oxide nanotube formation, incorporating the role of monomeric and polymeric aluminosilicate species as well as larger nanoparticles. Then, in Chapter 3, new molecular-level concepts for constructing nanoscopic metal oxide objects are demonstrated. The diameters of metal oxide nanotubes are shaped with Ångstrom-level precision by controlling the shape of nanometer-scale precursors. The subtle relationships between precursor shape and structure and final nanotube curvature are measured (at the molecular level). Anionic ligands (both organic and inorganic) are used to exert fine control over precursor shapes, allowing assembly into nanotubes whose diameters relate directly to the curvatures of shaped precursors. Having obtained considerable insight into aluminosilicate nanotube formation, in Chapter 4 the complex aqueous chemistry of nanotube-forming aluminogermanate solutions are examined. The aluminogermanate system is particularly interesting since it forms ultra-short nanotubes of lengths as small as ~20 nm. Insights into the underlying important mechanistic differences between aluminogermanate and aluminosilicate nanotube growth as well as structural differences in the final nanotube dimensions are provided. Furthermore, an experimental example of control over nanotube length is shown, using the understanding of the mechanistic differences, along with further suggestions for possible ways of controlling nanotube lengths. Ultimately, it is desired to produce the single-walled aluminosilicate nanotubes on a larger scale (e.g., kilogram or ton scales) for technological application. However, a quantitative multiscale understanding of nanotube growth via a detailed growth model, is critical to be able to predict and control key properties such as the length distribution and concentration of the nanotubes. Such a model can then be used to design liquid-phase reactors for scale-up of nanotube synthesis. In Chapter 5, a generalized kinetic model is formulated to describe the reactions leading to formation and growth of single-walled metal oxide nanotubes. This model is capable of explaining and predicting the evolution of nanotube populations as a function of kinetic parameters. It also allows considerable insight into meso/microscale nanotube growth processes. For example, it shows that two different mechanisms operate during nanotube growth: (1) growth by precursor addition, and (2) by oriented attachment of nanotubes to each other. In Chapter 6, a study of the structure of the nanotube walls is presented. It has usually been assumed in the literature that the nanotube wall is free of defects. A combination of 1H-29Si and 1H-27Al FSLG-HETCOR, 1H CRAMPS, and 1H-29Si CP/MAS NMR experiments were employed to evaluate the proton environments around Al and Si atoms during nanotube synthesis and in the final structure. The HETCOR experiments allowed to track the evolving Si and Al environments during the formation of the nanotubes from precursor species, and relate them to the Si and Al coordination environments found in the final nanotube structure. The 1H CRAMPS spectra of dehydrated aluminosilicate nanotubes revealed the proton environments in great detail. Integration of all the NMR results allows the structural assignment of all the chemical shifts and the identification of various types of defect structures in the aluminosilicate nanotube wall. In particular, five main types of defect structures are identified arising from specific atomic vacancies in the nanotube structure. It is estimated that ~16% of Si atoms in the nanotube inner wall are involved in a defect structure. The characterization of the detailed structure of the nanotube wall is expected to have significant implications for its chemical properties and applications. Chapter 7 contains concluding remarks, as well as suggestions for future directions in the engineering of single-walled nanotube materials.
Стилі APA, Harvard, Vancouver, ISO та ін.

Книги з теми "METALLIC AND INORGANIC"

1

Kijima, Tsuyoshi, ed. Inorganic and Metallic Nanotubular Materials. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-03622-4.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
2

Setsuhara, Yuichi, Toshio Kamiya, and Shin-ichi Yamaura, eds. Novel Structured Metallic and Inorganic Materials. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-7611-5.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
3

Harding, WB, and GA Di Bari, eds. Testing of Metallic and Inorganic Coatings. 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959: ASTM International, 1987. http://dx.doi.org/10.1520/stp947-eb.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
4

Innovative Inorganic Composites Symposium (1990 Detroit, Mich.). Innovative inorganic composites. Edited by Fishman Steven G, Abbaschian R, Cornie James A, and ASM's Materials Week (1990 : Detroit, Mich.). London: Elsevier Applied Science, 1991.

Знайти повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
5

Inorganic and metallic nanotubular materials: Recent technologies and applications. Heidelberg: Springer, 2009.

Знайти повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
6

Granqvist, Claes G. Handbook of inorganic electrochromic materials. Amsterdam: Elsevier, 1995.

Знайти повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
7

B, Harding William, Di Bari George A, ASTM Committee B-8 on Metallic and Inorganic Coatings., and Symposium on Testing of Metallic and Inorganic Coatings (1986 : Chicago, Ill.), eds. Testing of metallic and inorganic coatings: A symposium sponsored by ASTM Committee B-8 on Metallic and Inorganic Coatings, Chicago, IL, 14-15 April 1986. Philadelphia, PA: ASTM, 1987.

Знайти повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
8

Burzo, E. Magnetic Properties of Non-Metallic Inorganic Compounds Based on Transition Elements. Edited by H. P. J. Wijn. Berlin, Heidelberg: Springer Berlin Heidelberg, 2017. http://dx.doi.org/10.1007/978-3-662-49337-3.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
9

Adaskin, Anatoliy, Aleksandr Krasnovskiy, and Tat'yana Tarasova. Materials science and technology of metallic, non-metallic and composite materials. ru: INFRA-M Academic Publishing LLC., 2021. http://dx.doi.org/10.12737/1143245.

Повний текст джерела
Анотація:
Book 1 of the textbook consists of two parts. Part I describes the structure of metallic, non-metallic, and composite materials. Technologies of production of metal materials are considered: metallurgical production of ferrous and non-ferrous metals; powder metallurgy; technologies of production of non-metallic materials: polymers, glass, graphite; technologies of production of composite materials, including semi-finished products-prepregs, premixes. Part II is devoted to methods for studying the properties of materials. Metal materials, technologies of their hardening by thermal, chemical-thermal treatment, and plastic deformation are considered. The features of organic and inorganic nonmetallic materials, as well as the possibility of changing their properties, are given. Composite materials are widely covered, and the areas of their rational application are shown. Revised chapter 14, which deals with intelligent materials. Meets the requirements of the federal state educational standards of higher education of the latest generation. For bachelors and undergraduates studying in groups of training areas 15.00.00 "Mechanical Engineering" and 22.00.00 "Materials Technologies". It can be used for training graduate students of engineering specialties, as well as for advanced training of engineering and technical workers of machine-building enterprises.
Стилі APA, Harvard, Vancouver, ISO та ін.
10

K, Surappa M., Jawarharlal Nehru Centre for Advanced Scientific Research., and Minerals, Metals and Materials Society. Structural Materials Division., eds. Inorganic matrix composites: Proceedings of the discussion meeting sponsored by Jawarharlal Nehru Center for Advanced Scientific Research and the Structural Materials Division of TMS, held at the Indian Institute of Science, Bangalore, India, March 8-11, 1995. Warrendale, Pa: Minerals, Metals & Materials Society, 1996.

Знайти повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.

Частини книг з теми "METALLIC AND INORGANIC"

1

Hurd, Loren C., Eugene Brimm, W. A. Taebel, and B. S. Hopkins. "Metallic Rhenium." In Inorganic Syntheses, 175–78. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2007. http://dx.doi.org/10.1002/9780470132326.ch60.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
2

Devi, Laxmi, Tarique Mahmood Ansari, Md Sabir Alam, Ashish Kumar, and Poonam Kushwaha. "Metallic (Inorganic) Nanoparticles." In Metallic Nanoparticles for Health and the Environment, 1–21. Boca Raton: CRC Press, 2023. http://dx.doi.org/10.1201/9781003317319-1.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
3

Honig, J. M., and H. R. Harrison. "Metallic Oxides." In Inorganic Reactions and Methods, 245. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2007. http://dx.doi.org/10.1002/9780470145333.ch178.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
4

Honig, J. M., and H. R. Harrison. "Metallic Carbides." In Inorganic Reactions and Methods, 250–51. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2007. http://dx.doi.org/10.1002/9780470145333.ch181.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
5

Honig, J. M., and H. R. Harrison. "Metallic Nitrides." In Inorganic Reactions and Methods, 254. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2007. http://dx.doi.org/10.1002/9780470145333.ch183.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
6

Dräger, M., and N. Kleiner. "In Metallic Lead." In Inorganic Reactions and Methods, 96–97. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2007. http://dx.doi.org/10.1002/9780470145234.ch62.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
7

Knight, W. D. "Metallic free clusters." In Small Particles and Inorganic Clusters, 315–18. Berlin, Heidelberg: Springer Berlin Heidelberg, 1989. http://dx.doi.org/10.1007/978-3-642-74913-1_72.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
8

Honig, J. M., and H. R. Harrison. "Preparation of Metallic Ceramics." In Inorganic Reactions and Methods, 243–44. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2007. http://dx.doi.org/10.1002/9780470145333.ch177.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
9

Götze, Jens, and Matthias Göbbels. "Inorganic Non-metallic Raw Materials." In Introduction to Applied Mineralogy, 23–77. Berlin, Heidelberg: Springer Berlin Heidelberg, 2023. http://dx.doi.org/10.1007/978-3-662-64867-4_3.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
10

Deacon, Glen B., Geoff N. Pain, Tran D. Tuong, William J. Evans, Keith R. Levan, and Raul Dominguez. "(η5 -Cyclopentadienyl)Lanthanide complexes from the metallic elements." In Inorganic Syntheses, 17–23. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2007. http://dx.doi.org/10.1002/9780470132579.ch5.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.

Тези доповідей конференцій з теми "METALLIC AND INORGANIC"

1

Tallant, D. R., K. L. Higgins, P. J. Hargis, and A. F. Stewart. "Raman Analysis of Inorganic Thin Films*." In Lasers in Material Diagnostics. Washington, D.C.: Optica Publishing Group, 1987. http://dx.doi.org/10.1364/lmd.1987.wa3.

Повний текст джерела
Анотація:
Techniques for the Raman analysis of plasma-deposited submicrometer silicon films on metallic substrates and dielectric films on Raman-active substrates will be described and typical results will be presented.
Стилі APA, Harvard, Vancouver, ISO та ін.
2

Sharma, Ankur, and Satish Kumar Dewangan. "Performance analysis of different phase change materials (organic, inorganic, and metallic) for building applications." In APPLIED PHYSICS OF CONDENSED MATTER (APCOM 2022). AIP Publishing, 2023. http://dx.doi.org/10.1063/5.0127890.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
3

Kani, Yuko, Kenji Noshita, Toru Kawasaki, Tsutomu Nishimura, Tomofumi Sakuragi, and Hidekazu Asano. "Radiolytic Decomposition of Organic C-14 Released From TRU Waste." In The 11th International Conference on Environmental Remediation and Radioactive Waste Management. ASMEDC, 2007. http://dx.doi.org/10.1115/icem2007-7147.

Повний текст джерела
Анотація:
It has been found that metallic TRU waste releases considerable portions of C-14 in the form of organic molecules such as lower molecular weight organic acids, alcohols and aldehydes. Due to the low sorption ability of organic C-14, it is important to clarify the long-term behavior of organic forms under waste disposal conditions. From investigations on radiolytic decomposition of organic carbon molecules into inorganic carbonic acid, it is expected that radiation from TRU waste will decompose organic C-14 into inorganic carbonic acid that has higher adsorption ability into the engineering barriers. Hence we have studied the decomposition behavior of organic C-14 by gamma irradiation experiments under simulated disposal conditions. The results showed that organic C-14 reacted with OH radicals formed by radiolysis of water, to produce inorganic carbonic acid. We introduced the concept of “decomposition efficiency” which expresses the percentage of OH radicals consumed for the decomposition reaction of organic molecules in order to analyze the experimental results. We estimated the effect of radiolytic decomposition on the concentration of organic C-14 in the simulated conditions of the TRU disposal system using the decomposition efficiency, and found that the concentration of organic C-14 in the waste package will be lowered when the decomposition of organic C-14 by radiolysis was taken into account, in comparison with the concentration of organic C-14 without radiolysis. Our prediction suggested that some amount of organic C-14 can be expected to be transformed into the inorganic form in the waste package in an actual system.
Стилі APA, Harvard, Vancouver, ISO та ін.
4

Li, Xiaobo, Hengzhi Wang, Hui Wang, Sohae Kim, Keivan Esfarjani, Zhifeng Ren, and Gang Chen. "Metallic Composites Phase-Change Materials for High-Temperature Thermal Energy Storage." In ASME 2013 7th International Conference on Energy Sustainability collocated with the ASME 2013 Heat Transfer Summer Conference and the ASME 2013 11th International Conference on Fuel Cell Science, Engineering and Technology. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/es2013-18395.

Повний текст джерела
Анотація:
Inorganic materials and organic salts are usually used as phase change materials (PCMs) for thermal energy storage. Some of these materials have high latent heat of fusion; however one major drawback of these materials is the low thermal conductivity, which limits the rate of charging and discharging process. In this paper, we studied metallic alloys (eutectic alloys or alloys with a narrow melting temperature range) as phase-change materials, which have both high thermal conductivity and high latent heat of fusion. A formula was presented from entropy change to predict the latent heat of fusion of metallic alloys. We found that the latent heat of fusion of alloys can be expressed from three different contributions: the latent heat from each element, the sensible heat, and the mixing entropy. From the theory we also showed that latent heat of fusion could be greatly increased by maximizing the entropy of mixing, which can be realized by introduce more elements in the alloys, i.e., form ternary alloys by adding elements to binary alloys. This idea is demonstrated by the synthesis and measurement of the binary alloy 87.8Al-12.2Si (at%) and ternary alloy 45Al-40Si-15Fe (at%). The metallic alloy is synthesized by hot pressing method. The latent heat of fusion of 45Al-40Si-15Fe (at%) is about 865 kJ/kg with melting temperature from 830 °C to 890 °C from the differential scanning calorimetry (DSC) measurement, comparing with 554.9 kJ/kg and 578.3 °C for the binary alloy 87.8Al-12.2Si (at%). From the binary to the ternary alloy, the contribution to the latent heat from mixing entropy increases by 17%.
Стилі APA, Harvard, Vancouver, ISO та ін.
5

Khoda, Bashir, A. M. M. Nazmul Ahsan, and S. M. Naser Shovon. "Solid Transfer of Large Particles by Dipping in a Heterogeneous Mixture." In ASME 2021 16th International Manufacturing Science and Engineering Conference. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/msec2021-64079.

Повний текст джерела
Анотація:
Abstract Solid transfer technology from mixtures is gaining ever-increasing attention from both materials scientists and production engineers due to their high potential in near net shape production of cost-effective engineering components. Dip coating, a wet deposition method is an effective and straightforward way of thin-film/layers formation. It is extensively used as a coating method due to its simplicity, low cost, and reasonable control over the thickness. The dipping mixture can be homogeneous, composite, hybrid, or heterogeneous. The mixtures are often embedded with inorganic fillers, nanoparticles, or clusters (d < 30 nm) that produce a thin film ranging from nm to couple microns. An increase in the volume of solid transfer by the dipping process can open-up a novel technique for the 3D near-net-shape production process via sintering, robocasting or additive manufacturing, and material joining. Adding larger inorganic particle size (> 1μm) and/or by adding higher solid fraction will increase the solid transfer but may result in a multi-phase heterogeneous mixture or slurry. In this work, the physical mechanism of an increased volume of solid transfer with a larger particle size (> 5 μm) is investigated. The metallic particles are spherical in shape with an average diameter of 5.69 μm is considered as the coating material. Polymer-based glue and evaporating solvent are mixed to construct the liquid carrier system (LCS) for large inorganic hard particles. Moderate volume fraction (VF) of inorganic particles (20% < ϕp < 50%) are added into the LCS solution as solid loading. Cylindrical AISI 304 steel wire with dia 0.81 mm is used as the substrate for dipping and coating. The coating thickness (CT) and the surface packing coverage by the particles are measured in our lab. The results presented the influence of volume fraction of inorganic particle and glue composition on the solid transfer from the heterogeneous mixture.
Стилі APA, Harvard, Vancouver, ISO та ін.
6

Jan, Zala, Veno Kononenko, Matej Hočevar, Damjana Drobne, Drago Dolinar, Boštjan Kocjančič, Monika Jenko, and Veronika Kralj - Iglič. "Scanning Electron Microscope Images of HUVEC Cells Treated with Materials Used for Processing of Orthopaedic and Dental Implants." In Socratic Lectures 7. University of Lubljana Press, 2022. http://dx.doi.org/10.55295/psl.2022.d14.

Повний текст джерела
Анотація:
Use of orthopedic implants (OI) and dental implants (DI) is increasing due to obesity and ageing of the population. To increase the bio-functionality of metallic biomaterials, used for OI and DI, it is important to modify their surface composition, roughness, and structure without altering their me-chanical properties. Different materials, such as minerals and inorganic compounds are used for coating OI and DI, however, they may cause response of the cells that are in contact with them in the body. To optimize the use of the materials in implant design, it is of interest to study the effect of the materials on cells. Here we present observations of micron-sized particles of milled Al2O3, TiO2 and hydroxyapatite (HA) on human umbilical vein endothelial cells (HUVEC) by scanning electron mi-croscope. We observed morphological changes of the cells – budding of the cell membrane. Compar-ing to the control, more cells were detached from the glass they were grown on, indicating possibility of increased cell death or inability of the cells to attach to the surface. Described changes can be due to oxidative stress and inflammatory response of the treated cells. Keywords: Orthopedic implants; Inorganic coatings; Dental implants; in vitro cell lines; Inflamma-tory response; Oxidative stress
Стилі APA, Harvard, Vancouver, ISO та ін.
7

Chang, Bing, Saisai Li, Minghui Li, and Ruoyu Chen. "Research Progress of Neutron Shielding Materials." In 2022 29th International Conference on Nuclear Engineering. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/icone29-92210.

Повний текст джерела
Анотація:
Abstract Neutron shielding materials are widely used in aviation, medical treatment, nuclear reactor and other fields. Neutrons is difficult to shield because of their high energy. With the development of neutron shielding materials, different kinds of shielding materials have been developed. Compared with other kinds of materials, composite material is an ideal candidate for neutron shielding material because of their outstanding physical and chemical properties. Therefore, a lot of researchers continue exploring and preparing novel composite neutron shielding materials to meet the complex working conditions. This paper summarized the research status of different neutron shielding materials in recent years, mainly including inorganic non-metallic based neutron shielding materials, polymer based neutron shielding materials, metal based neutron shielding materials, beside for composite shielding materials. Moreover, the existing problems in the research of shielding materials and the possible future development direction are put forward.
Стилі APA, Harvard, Vancouver, ISO та ін.
8

Kindred, Thomas A., and Richard F. Wright. "Effects of Aging on the Thermal Conductivity of the AP1000® Containment Vessel Inorganic Zinc Coating." In 2014 22nd International Conference on Nuclear Engineering. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/icone22-31157.

Повний текст джерела
Анотація:
During a loss-of-coolant accident (LOCA) event the AP1000® passive safety features actuate to provide emergency core cooling (ECC) to the reactor core using passive features that do not rely on electrical power being available. The core makeup tanks (CMTs), and accumulators (ACCs) actuate to quench the fuel rods and refill the reactor vessel. After the CMTs and ACCs empty, the in-containment refueling water storage tank (IRWST) utilizing gravity injects a large volume of sub-cooled fluid into the reactor vessel. This floods the vessel and the lower region of containment (containment sump) initiating gravity induced long-term recirculation cooling. The discharge of high energy fluid during the blowdown, re-flood, and re-fill phases is assumed to condense on the colder structures inside the containment including the containment vessel shell. Heat is transferred through the shell to the film of water from the Passive Containment Cooling System (PCS) applied to the outside of the containment vessel shell. This results in evaporative heat transfer on the outside of the containment vessel. Due to the large heat transfer coefficients on the inside and outside of the shell the heat conduction through the shell is very important to the heat rejection capability of the PCS, and plays a large part in ensuring the containment vessel pressure is not exceeded during design basis events. The AP1000® containment vessel is forged from a high strength carbon steel alloy that is coated with an inorganic zinc coating which protects the containment vessel from corrosion during its design life. The coating acts as a sacrificial anodic layer which corrodes in lieu of corrosion of the substrate beneath it. The corrosion of the coating can potentially lead to degradation in thermal conductivity of the coating due to metallic oxides typically having a lower thermal conductivity than that of the non-oxidized state. A reduction in thermal conductivity of the protective coating will impact the overall heat transfer through the containment vessel during PCS operation. The purpose of this work is to develop a mechanistic model demonstrated against empirical validation for assessing the effects of oxidation on the thermal conductivity of the protective inorganic zinc coating (IOZ) on the AP1000® containment vessel.
Стилі APA, Harvard, Vancouver, ISO та ін.
9

Okuno, Tsuyoshi, Koichiro Tanaka, and Tohru Suemoto. "The role of divalent ions in persistent hole-burning mechanism in Y2O3:Pr3+ crystals." In Spectral Hole-Burning and Related Spectroscopies: Science and Applications. Washington, D.C.: Optica Publishing Group, 1994. http://dx.doi.org/10.1364/shbs.1994.wd55.

Повний текст джерела
Анотація:
Persistent spectral hole-burning is extensively studied in many materials. In inorganic materials doped with rare earth ions, we have mainly two mechanisms for hole-burning; one is optical pumping to hyperfine sublevels in rare earth ions, and the other is optically induced rearrangement of local structure around optical centers. In crystals we often observe the hole due to the former mechanism while the hole due to the latter is reported mainly in glasses. Up to now, there seems to be only little study about the correlation between the mechanism of hole-burning and sample-quality or defects. Recently we reported that the character of holes in Y2O3:Pr3+ depends on the quality of samples [1]. In this paper we study the origin of these holes in Y2O3 with a well-controlled manner. For this purpose, we applied hole-burning spectroscopy to various Y2O3:Pr3+(0.2mol%) samples doped with other metallic ions.
Стилі APA, Harvard, Vancouver, ISO та ін.
10

Zhou, D., and C. Y. Zhao. "Solid/Liquid Phase Change Heat Transfer in Latent Heat Thermal Energy Storage." In ASME 2009 3rd International Conference on Energy Sustainability collocated with the Heat Transfer and InterPACK09 Conferences. ASMEDC, 2009. http://dx.doi.org/10.1115/es2009-90052.

Повний текст джерела
Анотація:
Phase change materials (PCMs) have been widely used for thermal energy storage systems due to their capability of storing and releasing large amounts of energy with a small volume and a moderate temperature variation. Most PCMs suffer the common problem of low thermal conductivity, being around 0.2 and 0.5 for paraffin and inorganic salts, respectively, which prolongs the charging and discharging period. In an attempt to improve the thermal conductivity of phase change materials, the graphite or metallic matrix is often embedded within PCMs to enhance the heat transfer. This paper presents an experimental study on heat transfer characteristics of PCMs embedded with open-celled metal foams. In this study both paraffin wax and calcium chloride hexahydrate are employed as the heat storage media. The transient heat transfer behavior is measured. Compared to the results of pure PCMs samples, the investigation shows that the additions of metal foams can double the overall heat transfer rate during the melting process. The results of calcium chloride hexahydrate are also compared with those of paraffin wax.
Стилі APA, Harvard, Vancouver, ISO та ін.
Ми пропонуємо знижки на всі преміум-плани для авторів, чиї праці увійшли до тематичних добірок літератури. Зв'яжіться з нами, щоб отримати унікальний промокод!

До бібліографії