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The obtained materials

Xem 1-20 trên 506 kết quả The obtained materials
  • To evaluate the knowledge and factors affecting the entrepreneurship of young pharmacists in the Mekong Delta from May 2023 to November 2023. Material and methods: To ascertain the viewpoints of 815 young pharmacists aged from 20 to under 40, this study used a cross-sectional descriptive design and conducted interviews with them, basing on the features of the research item, obtaining knowledge about entrepreneurship and identify some relevant elements.

    pdf9p vikoch 27-06-2024 1 1   Download

  • Self-assembled functional nanomaterials with electromagnetic (EM) hot spots and chemical (CM) enhancement have been recognized as a key in surface-enhanced Raman scattering (SERS) analysis. Herein, a dual-hybrid plasmonic coupling SERS sensor composed of rutile TiO2 nanorod arrays (r-TNRs), Au nanospheres (AuNSs), and Ag nanocubes (AgNCs) has been designed to achieve ultrasensitive detection and obtain unique molecular fingerprints.

    pdf13p visergeyne 18-06-2024 1 0   Download

  • The presence of ammonium in drinking water poses a significant global challenge, demanding strategies that safeguard both public health and the environment. This study investigates the adsorption potential of AC-GCB biochar, obtained by pyrolyzing green coffee extracted bioactive compounds at 400ºC, for ammonium removal from groundwater.

    pdf11p viamancio 04-06-2024 2 0   Download

  • The linear buckling behavior of functionally graded toroidal shell segments with corrugated core under axial compression using the first-order shear deformation theory is presented in this paper. The homogeneous technique is applied for shear deformable corrugated core. Approximate analytical solutions are assumed to satisfy the simply supported boundary conditions and the adjacent equilibrium criterion is applied to obtain closed-form relations of buckling loads.

    pdf10p dathienlang1012 03-05-2024 1 0   Download

  • A theoretical study of sound transmission loss across a simply supported double-composite sandwich plate filled with poroplastic material is formulated. Biot's theory is employed to describe wave propagation in elastic porous media. The two face composite plates are modeled as classical thin plates. By using the modal superposition theory, a double series solution for the sound transmission loss of the structure is obtained with the help of the Galerkin method.

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  • This paper reported the synthesis of MOF based on Cu and H3BTC by potentiodynamic method, with emphasis on the effect of the solvent’s nature on the morphology, structure and specific surface area of the obtained material. The CO2 adsorption performance of the obtained MOF was also assessed.

    pdf10p dianmotminh02 03-05-2024 2 1   Download

  • This study uses chitin as a filler for a polyurethane composite foam. The obtained polymer composite materials (PCM) are examined the technological parameters of the foaming (start time, rise time, and apparent density), the physical-mechanical properties (the compressive stress, compression set, resilience), and the cross-link density.

    pdf8p dianmotminh02 03-05-2024 4 2   Download

  • In this study, a simple technique combining conventional electrospinning and facile gas–solid reaction for fabricating PAN/Ag2S nanofibers was presented and tested. The obtained fibers would have excellent properties such as the flexibility of PAN nanofibers and efficient photocatalysis of the Ag2S nanoshells under visible light. The photocatalytic elimination of RhB in water was used to evaluate the activity and application of the synthesized material under visible light irradiation.

    pdf11p dianmotminh02 03-05-2024 4 2   Download

  • This study is conducted using qualitative research method to collect and analyse both primary and secondary data. Primary data was obtained through official documents and an in-depth interview with key informants among Malaysian households of the communities near Malaysia-Thailand border, local leaders and academicians. Meanwhile, the secondary source of data was obtained from published materials and online documents such as books, journal articles and reports.

    pdf6p longtimenosee10 26-04-2024 2 1   Download

  • Ebook "Metrology in chemistry" presents the essentials every chemist needs to know about how to obtain reliable measurement results. Starting with the basics of metrology and the metrological infrastructure, all relevant topics – such as traceability, calibration, chemical reference materials, validation and uncertainty – are covered. In addition, key aspects of laboratory management, including quality management, inter-laboratory comparisons, proficiency testing, and accreditation, are addressed.

    pdf201p tracanhphuonghoa1007 22-04-2024 4 3   Download

  • Ebook "Production management of chemical industries" covers all major areas of operation, pollution control, safety, modernization, diversification, and resource management for cost control in the industrial production of chemicals. The author details the importance of obtaining the right type of raw materials and equipment for maximum plant efficiency and discusses revival of plants that have been idle for long periods.

    pdf370p tracanhphuonghoa1007 22-04-2024 9 4   Download

  • In this research, images related to national identity were examined in history textbooks. In the first stage, nationalism, the historical course of the Turkish national identity and related literature were examined, and some components of national identity were determined. Various categories related to national identity have been formed from the elements obtained.

    pdf13p viarnault 25-04-2024 2 2   Download

  • Today, ICT can be considered a leading factor in the arrangement of production and business processes, education, interaction of various subjects of society (state, organizations, and population), obtaining knowledge and information, leisure activities, and trade. ICT strengthen the material and technical base and stimulate socio-economic development, increasing the competitiveness and productive potential of the country’s economy. This topic is currently relevant, as the information society involves the widespread use of various information technologies in all areas of our activities.

    pdf6p longtimenosee07 29-03-2024 4 1   Download

  • Ebook "Electrochemistry of N4 macrocyclic metal complexes - Volume 1: Energy (Second edition)" describes the state of the art regarding molecular catalysts such as MN4 metal complexes, like porphyrins and phthalocyanines. This volume focuses on the particular case of the electrocatalysis of the reduction of O2 for practical applications in fuel cells and air batteries. Indeed, active and stable materials have been developed in the last 5 years where MN4 catalytic systems can be obtained by the pyrolysis of starting materials that do not necessarily involve MN4 complexes.

    pdf325p tudohanhtau1006 29-03-2024 2 2   Download

  • Ebook "Functionalization of carborane via carboryne intermediates" focuses on the development of new methods of functionalizing carboranes using o-carboryne intermediates. Functional carboranes are now finding a broad range of applications, including organic synthesis, drug design, polymers, catalysis, metal−organic frameworks, electronic devices and more. However, the limited number of efficient synthetic methods for obtaining functional carborane materials has restricted their applications.

    pdf180p tudohanhtau1006 29-03-2024 2 1   Download

  • Ebook "New synthetic routes to polyoxometalate containing ionic liquids: An investigation of their properties" carried out fundamental investigations into the development of polyoxometalate based ionic liquids (POM-ILs). The POM-ILs were obtained by charge balancing inorganic polyoxometalate (POM) anions with sterically demanding tetraalkylammonium or tetraalkylphosphonium cations.

    pdf138p tudohanhtau1006 29-03-2024 3 1   Download

  • In ebook "In-situ small-angle X-ray scattering investigation of transient nanostructure of multi-phase polymer materials under mechanical deformation" the evolution of the materials structure is visualized and quantitatively analyzed from exhaustive sequences of scattering images. Three different classes of polymer composites are presented as typical and illustrative examples. The obtained results illustrate that the interactions of their components can cause unpredictable structural effects, ultimately leading to a weakening of the material, where a reinforcement was expected.

    pdf117p coduathanh1122 27-03-2024 1 1   Download

  • Ebook "High-resolution electron microscopy (Fourth edition)" retains previous material on the fundamentals of electron optics and aberration correction, linear imaging theory (including wave aberrations to fifth order) with partial coherence, and multiple-scattering theory. Also preserved are updated earlier sections on practical methods, with detailed step-by-step accounts of the procedures needed to obtain the highest quality images of atoms and molecules using a modern TEM or STEM electron microscope.

    pdf427p coduathanh1122 27-03-2024 2 1   Download

  • Ebook "Schaum's outline of Theory and problems of Astronomy" is to serve as a supplement to a basic astronomy text. Much of the material here is abbreviated, and students should use this book as a guide to the key concepts in modern astronomy, but not as an all-inclusive resource. Topics covered range from planetary astronomy to cosmology, in the modern context. The first chapter covers most of the phsyics required to obtain a basic understanding of astronomical phenomena.

    pdf241p cotieubac1004 15-03-2024 1 0   Download

  • Part 2 book "Practical aspects of chemical engineering - Selected contributions from PAIC 2017" includes content: supercritical fluids in green technologies, applications and properties of physical gels obtained on the basis of cellulose derivatives, selected aspects of dust removal from gas stream for chamber separators, cleaning porous materials using supercritical fluids, large eddy simulations on selected problems in chemical engineering,... and other contents.

    pdf241p muasambanhan09 16-03-2024 7 1   Download

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