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1,552 articles for “Structure”
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Research ArticleOpen accessEvery word in the titleCrystal Structure of 2-(4-Hydroxy-3-Methoxyphenyl)-6- (4-Hydroxy-3-Methoxystyryl)-1-Methyl-2, 3-Dihydropyridine-4 (1H)-One by X-Ray Powder DiffractionBahjat A. Saeed, Kawkab Y. Saour, Rita S. Elias, Deng XiaodiProblem statement: The studied dihydropyridone was synthesized for the first time via the microwave assisted reaction of curcumin and methylamine and it is important to support the mechanism by the crystal structure. Approach: The crystal structure of the title compound was determined using high resolution x-ray diffraction. PowderSolve program was used to solve the structure while the refinement was done … …American Journal of Applied Sciences, Vol. 7, Issue 7 · 31 Jul 2010 · 7,162 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleEffect of Sr Substitution on Structure and Thermal Diffusivity of Ba1-xSrxTiO3 CeramicS.A. Halim, Z.A. Talib, Firas K. Mohamad Al-Asfoor et al.Problem statement: The aim of this research was to study the effect of Sr substitution on structure and thermal diffusivity of Bal-xSrxTiO3 ceramic at room temperature. Approach: Structural and thermal diffusivity of Ba1-xSrxTiO3 were studied by performing X-ray diffraction and photoflash measurements. The effects of Sr substitution on the structure and on the thermal diffusivity of Ba1-xSrxTiO3 (0≤x≤1) were investigated. … …American Journal of Engineering and Applied Sciences, Vol. 2, Issue 4 · 31 Dec 2009 · 8,778 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleMathematical Modeling for Shakedown Analysis of Offshore StructuresMohammad Javad Fadaee, Hamed Saffari, Ramin TabatabaeiThe shakedown analysis process of an offshore structure having elastic-plastic material presented. The finite element model of the structure has been developed first, and then a simple method has been applied for shakedown analysis using matrix tool. Simplifying the relationships together with applying the theory concepts of shakedown analysis is one of the characteristics of the presented method for practical … …American Journal of Applied Sciences, Vol. 4, Issue 7 · 31 Jul 2007 · 7,068 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleThe Study of Morphological Structure, Phase Structure and Molecular Structure of Collagen-PEO 600K Blends for Tissue Engineering ApplicationN. F. Mohd Nasir, M. G. Raha, N. A. Kadri et al.A new material which is collagen/ poly (ethylene oxide) (PEO) blend was developed to determine its possibility as a promising material for tissue scaffold. PEO with average molecular weight of 600,000 and collagen originated from calf skin were dispersed in 0.1 M acetic acid to prepare a concentration of 1 wt% for PEO and 0.15 wt% for collagen. The collagen-PEO600K … …American Journal of Biochemistry and Biotechnology, Vol. 2, Issue 4 · 31 Dec 2006 · 7,426 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleStudy of the Flow Structure of A Thermal Plume Evolving in an Unlimited and in A Semi-Enclosed EnvironmentJamil Zinoubi, A. Ould Mohamed Mahmoud, Taoufik Naffouti et al.The basic objective of this study was to better knowledge the fine flow structure of thermal plume created by a heated disk, evolving in an unlimited and in a semi-enclosed environment. The flow visualization and the study of the temperature fluctuations spectrum show clearly a considerable change of the turbulent structure of the internal flow in comparison with the free … …American Journal of Applied Sciences, Vol. 3, Issue 1 · 31 Jan 2006 · 7,034 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleBacterial Diversity and Community Structure Characteristics in Rhizosphere Soil of Coconut (Cocos nucifera L.) under Intercropping PineappleLilan Lu, Hui Zhu, Yingying Liu et al.To explore the bacterial diversity and community structure characteristics of the rhizosphere soil of fruit type coconuts of different varieties under the intercropping pineapple model, the Illumina high throughput sequencing technology was used to detect the composition and diversity of soil microorganisms. Furthermore, the correlation between the physical and chemical properties of soil and the characteristics of the rhizosphere soil … …American Journal of Biochemistry and Biotechnology, Vol. 19, Issue 1 · 16 Feb 2023 · 5,751 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleCharacterization of Composite Structure Surface Uniformity using Interval Based Gradient Field Histogram Analysis of Thermographic Images (IGF-HA)Mahmoud Zaki IskandaraniThis paper presents a new approach to composite surface characterization using Image Histogram Analysis as a function of Gradient Field. Image sequences are weighed and combined in order to present a pattern change in the thermal response of a tested composite structure. Reaction Injection Molding samples used and subjected to thermal energy to characterize their surface uniformity and any existing … …Journal of Computer Science, Vol. 14, Issue 6 · 25 May 2018 · 7,977 accessesView PDFCite
Research ArticleOpen accessEvery word in the titlePeculiarities of the Structure of Male Reproductive System in Trematode Parastrigea Robusta (Trematoda: Strigeidae)Rimma Meyramovna Ualiyeva, Kanat Kombarovich Akhmetov, Indira Bulatovna Altayeva, Alexey Vasilyevich SurovIt is well known that class Trematoda includes solely parasitic forms of flatworms. Therefore, they have developed diverse morphological and functional adaptations to the parasitic way of life. One of them is enormous fecundity, which allows quick and widespread settlement and finding hosts. Therefore, studying the reproduction apparatus of helminthes is the central problem of Parasitology. Studying functional morphology of … …OnLine Journal of Biological Sciences, Vol. 17, Issue 2 · 10 Jun 2017 · 7,647 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleDistress About Covid-19 in Panama: Psychometric StructureEricka Matus, Lorena Matus, Ana Florez et al.The psychological impact of the pandemic has established the urgent need to respond to the needs of the population in each culture, region and context. Thus, in the Republic of Panama, the efforts of numerous specialists have combined actions to attend to the crisis. This study aims to obtain the factor structure and psychometric properties of the SARS-CoV-2 distress scale, … …Journal of Social Sciences, Vol. 17, Issue 1 · 24 Nov 2021 · 7,329 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleMedia Identity in Structure of Personality: Formation and TypologyIgor Nikolaevich Blokhin, Sergey Nikolaevich Ilchenko, Lyudmila Petrovna ShesterkinaThe study provides the analysis of different approaches to determining media identity. This phenomenon is substantiated in the context of media landscape as a complex of relationships and communicative actions of a personality within the media system. The role of social relations in the processes of building the structure of personality is considered together with anthropological, sociological and psychological peculiarities … …American Journal of Applied Sciences, Vol. 13, Issue 5 · 27 May 2016 · 7,313 accessesView PDFCite