102 research outputs found
Constitutive Model for Predicting Ultimate Drying Shrinkage of Concrete
Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/65271/1/j.1151-2916.1987.tb05003.x.pd
Current knowledge of external sulfate attack
This paper offers an update of the current understanding of sulfate attack, with emphasis on the sulfates present in an external water source percolating through, and potentially reacting with, the cement matrix. The paper considers the explanations put forward to explain sulfate attack, both from a chemical and microstructural perspective. Similarly, this paper reviews work on the physical damage caused by the precipitation of sulfate salts in porous materials. With the increased use of binary and ternary blends, this paper also considers the impact of binder composition on sulfate resistance, and similarly reviews how the nature of the sulfate species can affect the nature and extent of any deterioration. This then leads on to the important consideration of differences between field- and lab-based studies; reviewing the effect of various experimental parameters on sulfate resistance. This latter topic is of great importance to anyone who wishes to carry out such experiments
Effect of the heat curing on strength development of self-compacting mortars containing calcined silt of dams and Ground Brick Waste
An Introduction to Sphingolipid Metabolism and Analysis by New Technologies
Sphingolipids (SP) are a complex class of molecules found in essentially all eukaryotes and some prokaryotes and viruses where they influence membrane structure, intracellular signaling, and interactions with the extracellular environment. Because of the combinatorial nature of their biosynthesis, there are thousands of SP subspecies varying in the lipid backbones and complex phospho- and glycoheadgroups. Therefore, comprehensive or “sphingolipidomic” analyses (structure-specific, quantitative analyses of all SP, or at least all members of a critical subset) are needed to know which and how much of these subspecies are present in a system as a step toward understanding their functions. Mass spectrometry and related novel techniques are able to quantify a small fraction, but nonetheless a substantial number, of SP and are beginning to provide information about their localization. This review summarizes the basic metabolism of SP and state-of-art mass spectrometric techniques that are producing insights into SP structure, metabolism, functions, and some of the dysfunctions of relevance to neuromedicine
Cerimetric determination of simvastatin in pharmaceuticals based on redox and complex formation reactions
Scaling of the resolving power and sensitivity for planar FAIMS and mobility-based discrimination in flow- and field-driven analyzers
Repetitive Bevacizumab IVOM in der Behandlung von Chorioretinopathia Centralis Serosa (CCS)
Some results of the effect of carbonation on the porosity and pore size distribution of cement paste
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