Theoretical structure

Part 2 book "Nitrogen fixation - Methods and protocols" includes content: X-Ray crystallography; X-ray absorption spectroscopy, small angle X-ray scattering spectroscopy; electron paramagnetic resonance spectroscopy; magnetic circular dichroism spectroscopy; mössbauer spectroscopy; nitrogenase structure and function relationships by density functional theory; modeling the mofe nitrogenase system with broken symmetry density functional theory.

182p dianmotminh04 12-07-2024 0 0   Download

Part 1 of ebook "Experimental and theoretical advances in fluid dynamics" provides readers with contents including: invited lectures; flapping plate(s); sky dancer, a complex fluid-structure interaction; structure and translational diffusion in liquid crystalline phases of a gay-berne mesogen, a molecular dynamics study; geophysics and astrophysics; linked toroidal vortices; remediation strategy for a Cr(VI) polluted aquifer using numerical simulation;...

245p tuongmothua 11-07-2024 0 0   Download

Part 2 of ebook "Experimental and theoretical advances in fluid dynamics" provides readers with contents including: multiphase flow and porous media; convection, diffusion and heat transfer; rheology and granular media; viscous flow; gallery of fluids; visualization of structures in non homogeneous flows; oil filaments produced in a stirred tank; fiber optic micro-bubble generator; dipolar vortex in a rotating system; super free fall of liquids in conical containers;...

266p tuongmothua 11-07-2024 0 0   Download

The paper has the following structure. Section 1 is the introduction that looks at the motivation, while Section 2 is the theoretical background and literature review that focus on the influence of FDI inflows on private investment. Section 3 is the empirical equation and data, while Section 4 is the result and discussion. The final section (Section 5) concludes and suggests some policy lessons.

9p leminhvu111 07-06-2024 1 0   Download

This paper introduces a new press structure that utilizes a double crank mechanism to enhance productivity and efficiency for the stamping process. By adjusting the positions between the component links, the dynamic characteristic of the ram can be modified, optimizing the performance and improving operations of the system.

8p viambani 18-06-2024 1 1   Download

Ebook "Durability design of concrete structures: Report of RILEM technical committee 130-CSL" is the first systematic attempt to introduce into structural design a general theory of structural reliability and existing calculation models for common degradation processes. It covers both the theoretical background and practical design for service life and includes worked examples which highlight the application of the design procedure and methods.

93p dongmelo 26-05-2024 4 2   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.

10p dathienlang1012 03-05-2024 0 0   Download

The wave function regards like localized orbital locator, electron localized function, average localized ionization energy and non-covalent interaction are also examined as a means of theoretical evidence of the titled compound. The NBO calculations probe the intermolecular and intramolecular movement of charges, and additionally the molecule's stability. The ADMET properties are also considered for the compound with the assistance of Swiss ADMET online tool.

17p dianmotminh02 03-05-2024 1 1   Download

A new megastigmane glycoside, (3S,5R,6R,9S)-6,9-epoxiionane-3,5-diol 3-O-βprimeveroside together with 7 compounds were isolated from Achyranthes aspera L. The chemical structures were elucidated through 1D-, 2DNMR, and HR-ESI-MS experiment. The absolute configuration of 1 was determined using combination of the experimental and theoretical calculation of CD spectra. Compounds 2 and 7 were reported for the first time from the genus Achyranthes.

5p dianmotminh02 03-05-2024 2 1   Download

This study focuses on examining the effect of the π bridge on the properties of the molecule. The structural parameters of the molecular geometry were optimized, the HOMO and LUMO energies were calculated and analyzed in detail. In addition, the absorption wavelength, excitation energy, vibration intensity and electron transfer were calculated through the time-dependent density functional theory (TD-DFT) method.

6p dianmotminh02 03-05-2024 4 2   Download

One new sesquiterpene, (4S,7R,10S)-2-oxo-4,10,11-trihydroxyguaia-1(5)-ene, and five lignans, kadsuralignan J, isovaleroylbinankadsurin A, schizandrin O, futokakadsurin C and arisantetralone were isolated from the roots of Kadsura induta. Their chemical structures were revealed by MS, 1D and 2D NMR spectra in comparison with the reported data. The absolute configuration of compound 1 was determined by calculation of its theoretical ECD spectra and compared with the experimental results.

9p dianmotminh02 03-05-2024 4 2   Download

Three chalcones with a 2,3-dihydrobenzofuran linkage were analyzed by applying the density functional theory (DFT) and B3LYP approach with the 6-311G(d,p) basis set in this report. Spectroscopic and theoretical analyses were used to examine the structures of these three chalcones. The chalcone molecules' HOMO-LUMO energy was determined. Chemical reactivity parameters and molecular electrostatic surface potential (MESP) plots were obtained to gain useful insight into the distribution of charge density.

11p dianmotminh02 03-05-2024 3 2   Download

Fiber-Reinforced Polymer (FRP) in the form of thin-walled plate structures are widely used in different engineering applications due to their outstanding features such as: high strength-to-weight ratio, excellent fatigue and corrosion resistance, etc. This study focuses on the local buckling resistance of pultruded FRP columns by experimental work. The test data were compared to current theoretical and numerical predictions.

11p viohoyo 25-04-2024 3 1   Download

The article examines the theoretical foundations of State governance in physical fitness and sports, the legislation in the field of physical culture and sports, the structure of sports administration in the Russian Federation based on the supply chain management. The medium and longterm strategies for the development of physical culture and sports have been analyzed.

6p longtimenosee10 26-04-2024 1 1   Download

The article presents the theoretical framework for the infrastructure formation in the economic systems specializing in mineral raw materials, by using supply chain strategy. It is determined by objective processes of economic development and sectoral peculiarities, in the form of synthesis of reproduction, structural-functional and systemic approaches in supply chain management. It allows developing adequate mechanisms aimed at maintaining and further developing infrastructure of territorial economic systems (TES).

12p longtimenosee10 26-04-2024 2 1   Download

The purpose of our research is to study the existing problems in the food supply chain management and to propose a decision-making algorithm for efficient and competitive business development. The study and generalization of theoretical studies in the field of food supply chain management allowed us to identify and formulate the specifics of this industry with the help of the following research methods: selection of logistics intermediaries, forecasting (indicators, flows, etc.), arrangement of nomenclature groups, optimization under risk conditions, statistical methods in data processing.

10p longtimenosee10 26-04-2024 4 1   Download

Ebook "Discovering biomolecular mechanisms with computational biology" present critical reviews of methods and high-impact applications in computational biology that lead to results that also non-bioinformaticians must know to design efficient experimental research plans. Discovering Biomolecular Mechanisms with Computational Biology also summarizes non-trivial theoretical predictions for regulatory and metabolic networks that have received experimental confirmation.

152p ladongphongthanh1008 22-04-2024 8 2   Download

Ebook "Theory of sum frequency generation spectroscopy" describes fundamental theory and recent advances of sum frequency generation (SFG) spectroscopy. SFG spectroscopy is widely used as a powerful tool of surface characterization, although theoretical interpretation of the obtained spectra has been a major bottleneck for most users.

273p tracanhphuonghoa1007 22-04-2024 9 3   Download

This study serves as a comprehensive review, delving deeply into pivotal theoretical frameworks associated with the development of the corporate credit rating market. By emphasizing cornerstone principles such as information symmetry, risk management, and corporate governance, it elucidates the central role of credit ratings in providing instrumental insights for investment decisions and optimizing capital structures.

12p longtimenosee09 08-04-2024 2 1   Download

Improvement of scientific-theoretical approaches and the principles to the analysis of digital economic space, systematization of structural elements of digital economy to define characteristics. A research object - economy of digital space at the present stage. Systematization of current trends of development of digital economy, ideas of structural elements of digital economy acts as a subject.

8p longtimenosee09 08-04-2024 1 0   Download