Compositional analysis

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  • Polysaccharide fractions isolated from Lentinula edodes fruitbodies and mycelium demonstrate strong immunomodulating, antioxidant and anticancer activity. We hypothesized, that polysaccharide fractions enriched in selenium would possess higher biological activity than non-enriched fractions, currently used to treat cancer. The first goal of this study was to isolate selenium (Se)-enriched polysaccharide fractions of different molecular weight from L. edodes mycelium cultivated under the submerged conditions in Se-enriched medium, and to investigate their monosaccharide composition....

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  • Is a branch of polymer science dealing with analysis and characterisation of polymers. üThe complication of macromolecular chains, the dispersion in molecular weight, tacticity, crystallinity, orientation, composition of polymers etc. and complex morphological systems ⇒ analysis of polymer ≠ the small organic materials ⇒ Focus on viscoelastic properties, dynamic mechanical testing.

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  • Tham khảo bài thuyết trình 'phân tích polyme (polymer analysis)', kỹ thuật - công nghệ, hoá học - dầu khí phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

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  • In the past few decades, the Finite Element Analysis (FEA) has been developed into a key indispensable technology in the modeling and simulation of various engineering systems.

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  • Tham khảo sách 'principal component analysis – multidisciplinary applications', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

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  • In this chapter attention is focused on a representative volume of the reactor. This volume contains one single fluid phase only. It is uniform in composition and temperature. If the reactor is spatially uniform, the representative volume is the total volume; if not, the representative volume is limited to a differential element — a “point”.

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  • This book has two parts. The first part talks about general characteristics of the World Trade Organisation (WTO) as well as common steps that have to be taken during the accession process. Theoretical studies related to the WTO activities are also presented. Finally, Part I of this book discusses one of the most useful methods of examining economic consequences of being WTO member, namely Computable General Equilibrium (CGE) Models. Part II continues analysis and shows application of CGE model to a specific case study.

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  • VNU Journal of Science, Natural Sciences and Technology 26 (2010) 161-164 Fresh leaves of Litsea glutinosa (Lour.) C. B. Rob. from Ha Tinh were steam distilled to produce an oil in 0.15% yield. The essential oil was analysis by a combination of capillary GC and GC/MS. Seventy eight compounds were detected in the oil, of which more than 95.18% were terpenoids. The major components were (E)-β-ocimene (13.35%), β-caryophyllene (27.20%) and bicyclogermacrene (18.16%).

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  • Stability is a basic concern in both design and analysis of load-carrying systems and constitutes a major topic in the field of engineering science and mechanics. Since structural instability may lead to catastrophic failure of engineering structures, stability requirements must be satisfied besides requirements related to material failure. Knowledge on stability is of great importance in the areas of Civil Engineering, Mechanical Engineering and Aerospace Engineering; and all these disciplines have their own literature related to the subject....

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  • In this study, the air-plasma generated by radio-frequency was used to treat bamboo fiber. The treatment parameters were studied to find the suitable condition. The testing on tensile strength, tensile modulus, module Weibull and elongation to break of the fiber, the measurement of contact angles and the SEM analysis showed that at the high frequency of 12 kHz, power 50 W and treatment time of 5 minutes, after air-plasma treatment the tensile strength and tensile modulus of bamboo fiber increased more than double (101.1% and 101.

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  • (BQ) Part 2 book "Data reduction and error analysis for the physical sciences" has contents: Least-Squares fit to an arbitrary function, fitting composite curves, direct application of the maximum likelihood method, testing the fit.

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  • A new approach of predicting structural classes of protein domain sequences is presented in this paper. Besides the amino acid composition, the composition of several dipeptides, tripeptides, tetrapeptides, pentapeptides and hexapeptides are taken into account based on the step-wise discriminant analysis. The result of jackknife test shows that this new approach can lead to higher pre-dictive sensitivityand specificityfor reduced sequence similaritydatasets.

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  • (BQ) Part 2 book "Failure analysis case studies II" has contents: Catastrophic failure of a raise boring machine, premature fracture of a composite nylon radiator, fatigue failure of the de havilland comet i, fatigue failure analysis of a leg press exercise machine, oxidation failure of radiant heater tubes, environmentally assisted cracking,... and other contents.

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  • (BQ) Principles of composite material mechanics a unique blend of classical and contemporary mechanics of composites technologies. That book includes frequent references to current state-of-the-art composites technology and research findings.

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  • This paper deals with the analysis of non-linaer multilayered reinforced composite plates with simply supported along its four edges by Bubnov - Galerkin and Finite Element Methods. Numerical results are presented for illustrating theoretical analysis of reinforced and unreinforced laminated composite plates. Keywords: Stiffened laminated composite plate, multilayered reinforced composite plates

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  • This paper describes the main features of our tool called “Legal Taxonomy Syllabus”. The system is an ontology based tool designed to annotate and recover multi-lingua legal information and build conceptual dictionaries on European Directives. Vogel, 2004) and ontologies engineering (Klein, 2001), are the following ones: 1) Terms and concepts must be distinguished; for this purpose, we use lightweight ontologies, i.e. simple taxonomic structures of primitive or composite terms together with associated definitions. ...

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  • This paper describes a compositional semantics for temporal expressions as part of the meaning representation language (MRL) of the JANUS system, a natural language understanding and generation system under joint development by BBN Laboratoires and the Information Sciences Institute. 1 The analysis is based on a higher order intansional logic described in detail in Hinrichs, Ayuso and Scha (1987). Temporal expressions of English are translated into this language as quantifiers over times which bind temporal indices on predicates.

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  • (BQ) Part 1 book "Mechanics of composite materials" has contents: Introduction to composite materials (introduction, classification, recycling fiber reinforced composites, recycling fiber reinforced composites, summary), macromechanical analysis of a lamina (review of definitions, hooke’s law for different types of materials, hooke’s law for different types of materials,...)

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  • (BQ) Part 2 book "Mechanics of composite materials" has contents: Micromechanical analysis of a lamina; macromechanical analysis of laminates; failure, analysis, and design of laminates; bending of beams.

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  • (BQ) The book provides invaluable analytic tools for students and engineers seeking to understand composite properties and failure limits. A key feature is a series of analytic problems continuing throughout the text, starting from relatively simple problems, which are built up step-by-step with accompanying calculations.

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