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Showing 1 to 20 of 1524 for “"Aggregates"”.
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An NMR Study of Trimethylsilylmethyllithium Aggregates and Mixed Trimethylsilylmethyllithium/Lithium trimethylsilylmethoxide Aggregates
… indicates that TMSM-Li exists as two different aggregates in cyclopentane solution. Using previously reported colligative properties of TMSM-Li in different solutions in connection with new 13C and 6Li NMR data collected in this study, aggregation states were assigned as octamer and hexamer. Low …
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The Hydrodynamics of Ferrofluid Aggregates
… of accumulating or dispersing ferrofluid aggregates spanning the stable, low Reynolds number behavior to unstable, higher Reynolds numbers. The dynamics of ferrofluid aggregates are governed by the interaction between the bulk flow shear stresses acting to wash away the aggregate and …
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An NMR Study of 2-Ethylbutyllithium/Lithium 2-Ethyl-1-butoxide Mixed Aggregates, Lithium Hydride/Lithium 2-Ethyl-1-butoxide Mixed Aggregates, n-Pentyllithium Aggregates, and n-Pentyllithium/Lithium n-Pentoxide Mixed Aggregates
… 2-ethyl-1-butoxide mixed aggregates formed from reacting 2-ethyl-1-butanol with 2-ethylbutyllithium in two O/Li ratios of 0.2/1 and 0.8/1. The 0.2/1 sample resulted in two 2-ethylbutyllithium/lithium 2-ethyl-1-butoxide mixed aggregates and seven lithium hydride/lithium …
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Evaluation of lateritic coarse aggregates as a partial replacement for granite coarse aggregates in structural concrete.
In Zambia, coarse aggregates for concreting are normally produced by crushing granite, limestone and basalt among other rock types. However, these rocks are scarce diminishing natural resources and henceforth; the need to study other naturally available materials for full or partial replacement; …
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Evaluation of lateritic coarse aggregates as a partial replacement for granite coarse aggregates in structural concrete.
In Zambia, coarse aggregates for concreting are normally produced by crushing granite, limestone and basalt among other rock types. However, these rocks are scarce diminishing natural resources and henceforth; the need to study other naturally available materials for full or partial replacement; …
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Shrinkage of concrete using porous aggregates
… The main focus was to examine the effects of aggregates on concrete shrinkage, effects of specimen size on shrinkage measurements, the use of shrinkage compensating concrete as a solution in order to reduce shrinkage and the magnitude of long-term shrinkage. For this examination, 34 different …
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NMR Study of n-Propyllithium Aggregates
… of n-propyl-6Li-lithium showed five different aggregates, similar to that in the literature as (RLi)n, n= 6, 8, 9, 9, 9. There were also a number of additional new species, identified as lithium hydride containing aggregates. Unexpectedly, a series of 13C{1H} 1-D NMR experiments with selective …
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Characterisation and Detection of P53 Aggregates
… aggregation-prone regions and can form amyloid aggregates. Some mutants of the p53 protein, such as the R248Q mutant, exhibit higher aggregation propensity than the WT. P53 aggregation is associated with loss-of-function, gain-of-function, and dominant-negative effects of the protein and thus …
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Studies of exciton interactions in molecular aggregates
211 leaves : ill., tables, graphs ; 30 cm.
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Structure and function of amphotericin B aggregates
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2025-08-01
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Learning aggregates and interpolation for algebraic multigrid
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2022-11-11 without embargo terms
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Single-molecule techniques for mapping protein aggregates
… the compositions of native protein aggregates are still not fully known. Mapping them could help us understand the diseases they cause, and provide the basis for early diagnosis and monitoring therapy. Since protein aggregates are heterogeneous in sizes and structures, …
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Fabrication of water-soluble gold nanoparticle aggregates
… were linked using octanedithiol to form aggregates containing hundreds of nanoparticles. These aggregates are an interesting material, posing potential applications in the fields of chemistry, biology and materials science. This study examined the dependence of aggregate size and …
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Slivers, computational modularity via synchronized lazy aggregates
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1994.
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The Effect on the Durability Properties of Concrete of Partial Replacement of Natural Fine Aggregates with Recycled Concrete Fine Aggregates
… construction materials such as recycled aggregates into new construction as a measure to deal with this growing challenge. Currently, in South Africa, a blend of different types of sand is used for construction purposes due to variations in the sand quality and over exploitation of nearby …
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The skidding resistance potential of steel slag aggregates.
… and develop confidence in the use of steel slag aggregates.The work reported here relates to the skidding resistance potential of steel slag aggregate for use in highway surfaces. Results are presented for both the laboratory determination of the properties of steel slag and for the in-service …
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Endogenous Stress Signaling within Human Multicellular Aggregates (Spheroids)
… by conversion to non-adherent multicellular aggregates. These "spheroids" can be maintained at room temperature under oxygen- and nutrient-deprived conditions for extended periods of time (weeks) as well as converted back to viable proliferating monolayers. Herein it is shown that HEK293 …
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Laser scanning aggregates for real-time property identification
… the chemical composition and mineralogy of aggregates, with focus on minerals such as mica and limestone which can cause rapid degradation of aggregate stone in asphalt and concrete. Chemical composition testing is performed via Laser-Induced Breakdown Spectroscopy (LIBS), which involves …
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Photoactive metal complexes for studying amyloid-β aggregates
… in the brain, which self-assembles into large aggregates. This process is known to be involved in the development of Alzheimer’s disease. Because of this link, there is a significant interest in developing probes that are capable of sensing and reporting on this structural conversion. Previous …
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