Complex spectrum

Investigating the occurrence of defects in structures is currently a major issue of significant interest. In this paper, we present experimental research findings on the relationship between the moments of the power spectrum and the presence of damage in bridge beam structures.

13p viwalton 02-07-2024 1 1   Download

Realistic vibration testing of large floor mounted Battery Pack, sometimes called Rechargeable Energy Storage Systems (RESS), for Batterie Electric Vehicles (BEV) is important for developing safe new battery structures. On the other hand, the requirements for realistic replications of worst-case environments in a lab usually demand costly and complex infrastructure.

11p visergey 02-04-2024 2 1   Download

Autism spectrum disorder (ASD) is a neurodevelopmental disorder with complex heritability and higher prevalence in males. The neonatal epigenome has the potential to reflect past interactions between genetic and environmental factors during early development and influence future health outcomes.

25p vibransone 28-03-2024 5 1   Download

Ebook "Coating substrates and textiles: A practical guide to coating and laminating technologies" provides knowledge on the finishing of substrates with a functionalising coating, emphasizing on technical textiles. The spectrum of topics covers different substrates and coating materials, process engineering and equipment components as well as complex machinery. The reader is presented with an overview of the technical capabilities of substrate coating, enabling the practitioner to design and implement new products.

249p coduathanh1122 27-03-2024 7 1   Download

To diagnose the full spectrum of hereditary and congenital diseases, genetic laboratories use many different workfows, ranging from karyotyping to exome sequencing. A single generic high-throughput workflow would greatly increase efciency. We assessed whether genome sequencing (GS) can replace these existing workflows aimed at germline genetic diagnosis for rare disease.

11p vicwell 29-02-2024 4 2   Download

Ebook "Self-Incompatibility in flowering plants: Evolution, diversity, and mechanisms" covers a broad spectrum of research into SI, with accounts by internationally renowned scientists. It comprises two sections: Evolution and Population Genetics of SI, Molecular and Cell Biology of SI Systems. The reader will gain an insight into the diversity and complexity of these polymorphic cell-cell recognition and rejection systems.

341p tachieuhoa 28-01-2024 5 2   Download

Ebook "Stochastic optimization methods in finance and energy: New financial products and energy market strategies" presents a collection of contributions dedicated to applied problems in the financial and energy sectors that have been formulated and solved in a stochastic optimization framework. The invited authors represent a group of scientists and practitioners, who cooperated in recent years to facilitate the growing penetration of stochastic programming techniques in real-world applications, inducing a significant advance over a large spectrum of complex decision problems.

499p tuongnhuoclan 28-11-2023 8 5   Download

Systemic lupus erythematosus (SLE) is a complex autoimmune disease characterized by diverse clinical manifestations and a broad spectrum of disease course and prognosis. The present study aimed to report the case of a 30-year-old woman with severe SLE and abdominal pain manifestations, focusing on the diagnosis and management of the disease.

4p viwhitewolf 03-07-2023 6 2   Download

Major histocompatibility complex (MHC) class I glycoproteins present selected peptides or antigens to CD8+T cells that control the cytotoxic immune response. The MHC class I genes are among the most polymorphic loci in the vertebrate genome, with more than twenty thousand alleles known in humans.

14p vihagrid 30-01-2023 5 3   Download

We introduce ABLE (Approximate Blockwise Likelihood Estimation), a novel simulation-based composite likelihood method that uses the blockwise site frequency spectrum to jointly infer past demography and recombination. ABLE is explicitly designed for a wide variety of data from unphased diploid genomes to genome-wide multi-locus data (for example, RADSeq) and can also accommodate arbitrarily large samples.

16p vigalileogalilei 27-02-2022 15 1   Download

Structural variation (SV) influences genome organization and contributes to human disease. However, the complete mutational spectrum of SV has not been routinely captured in disease association studies.

21p vialfrednobel 29-01-2022 12 0   Download

Sex differences are a common feature of human traits; however, the role sex determination plays in human genetic variation remains unclear. The presence of gene-by-sex (GxS) interactions implies that trait genetic architecture differs between men and women. Here, we show that GxS interactions and genetic heterogeneity among sexes are small but common features of a range of high-level complex traits.

8p viaristotle 29-01-2022 10 0   Download

A new anthracene derivative of calix[4]arene was synthesized as a highly fluorescent compound. This compound was examined for its fluorescent properties towards different metal ions (Li+, Na+, Mg2+, Ca2+, Ba2+, Ni2+, Cu2+, Zn2+, Pb2+) by UV and fluorescence spectroscopy. On complexation by alkaline earth metal cations and transition metal cations, the fluorescence spectrum was quenched. In particular, Ca2+ caused greater than 98% quenching of the anthracene derivative of calix[4]arene.

8p langthannam 29-12-2021 11 0   Download

Comparison between the calculated and experimental results covering molecular structures, assignment of fundamental vibrational modes, and thermodynamic properties were investigated. The optimized molecular geometries were compared with the experimental data obtained from X-ray data of a similar complex, which indicated that the theoretical results agree with the corresponding experimental values. The UV-Vis spectrum of the compound was also recorded and some properties, such as HOMO and LUMO energies and λmax , were determined using DFT (PW91) method.

12p langthannam 29-12-2021 20 0   Download

These mononuclear Mn(II), Co(II), Ni(II), Cu(II), and Zn(II) complexes of the ligand were prepared and their structures were proposed by elemental analysis, and infrared and ultraviolet-visible spectroscopy; the proton NMR spectrum of the mbH ligand was also recorded. The azo-azomethine ligand, mbH, behaves as a bidentate ligand coordinating through the nitrogen atom of the azomethine (–CH=N–) and the oxygen atom of the phenolic group. Elemental analyses indicated that the metal:ligand ratio was 1:2 in the metal chelates.

20p langthannam 29-12-2021 7 0   Download

The inclusion complexation of flavanone with β -cyclodextrin was studied by ultraviolet absorption, steady state fluorescence, time-resolved fluorescence, and 2D ROESY nuclear magnetic resonance spectroscopic techniques. A 1:1 stoichiometric ratio was determined for the inclusion of flavanone with β -cyclodextrin. The Stern–Volmer constant for the accessible fraction of the binding of flavanone with β -cyclodextrin, and the binding constant for the flavanone–β - cyclodextrin complex are reported.

14p langthannam 29-12-2021 18 1   Download

2,6-Pyridinedicarboxylic acid (H2 dipic) reacts with copper-exchanged zeolite NaY to form [Cu(dipic)(H2 O) 2 ] n , which is encapsulated in the pores of the zeolite. In this zeolite-encapsulated form, the copper derivative functions as an efficient catalyst for the oxidation of cyclohexene, toluene, cyclohexane, and ethyl benzene in the presence of hydrogen peroxide (as an oxidant). The catalyst was readily recovered from the reaction mixture, and it could be reused for an additional three runs without perceptible loss of activity.

13p langthannam 29-12-2021 6 0   Download

A rhodamine B derivative containing 1,2,4-triazole as subunit was characterized as an “off–on” type Cu2+ - selective fluorescent probe. It exhibited high selectivity and sensitivity for Cu2+ in ethanol–water solution (9:1, v:v, pH 7.0, 20 mM HEPES) and underwent ring opening. A prominent fluorescence enhancement at 570 nm was observed in the presence of Cu2+ with the change in the absorption spectrum, and a 1:1 metal–ligand complex was formed.

7p langthannam 29-12-2021 10 0   Download

The variability consisted inthe emission of category item names under different sequences. As a result, the targets were established for both children. For one of them, the procedure without instructive feedback was slightly better because errorless intraverbal performance was established first. Demonstrations of response variability occurred in more teaching sessions. In the case of the other child, it was the opposite (the procedure with instructive feedback was better). Data were discussed as to possibilities for future studies.

9p mudbound 06-12-2021 8 1   Download

The experimental data were compared with the theoretical results obtained by the quantum chemical calculations of the DFT/B3LYP method with LANL2DZ basis set. A detailed interpretation of the FT-IR spectra of the studied compounds was performed based on the total energy distribution. In order to investigate the electronic structures and the UV-Vis spectrum of complex 5, time-dependent density functional theory calculation was taken into account.

45p tudichquannguyet 29-11-2021 9 2   Download