Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 464 for “"acidity"”.
-
Studies in the Regulation of Gastric Acidity
The story of the nutritive and digestive processes in man begins, like that of other branches of medicine, with the highly imaginative ideas of demons, spirits, and magic which swayed the ancients for century upon century. | The records of early Egyptian, Chinese and Hindu medicine are saturated …
-
Studies in the Regulation of Gastric Acidity
Man's interest in his own digestive processes goes back many centuries. | The views on digestion held by all the ancient peoples and tribes were full of magic, mysticism and superstition. Either demons or different humors existed in the body to direct the natural digestive processes. | The ideas of …
-
The Measurement and Inheritance of Acidity in The Tomato
Made available in DSpace on 2014-12-04T19:49:30Z (GMT). No. of bitstreams: 1 6402919.pdf: 2874333 bytes, checksum: 02cd49e1c47d6f9d10f917ef2b3ae02a (MD5) Previous issue date: 1963
-
Novel Electrochemical Methods for Acidity Monitoring: Theory, Design and Application
This thesis reports the design and development of novel voltammetric pH sensors for buffered, low-buffered and unbuffered media. pH sensors in stagnant and hydrodynamic environments were designed and developed for performing measurements using square wave voltammetry. Chapter 1 introduces the …
-
Episodic Increases In Stream Acidity, Catchment Flow Pathways And Hydrograph Separation
… correlation between stream discharge and stream acidity is common in areas affected by Surface Water Acidification (SWA). This has led to conceptual models of SWA in which low flow is less acid because of slow weathering reactions during a long transit time through the catchment. Acid storm …
-
The characterization and elimination of the external acidity of ZSM-5
… in various ways to eliminate the external acidity of the catalyst to further improve these properties, and the success and effects of these modifications were investigated primarily using temperature programmed desorption techniques. The internal surface of ZSM-5, a medium pore zeolite, …
-
A study of the natural acidity of milk in southwest Virginia
… interest has been aroused over the topic of acidity of milk in southwest Virginia. Certain manufacturers of skin milk powder have manufactured products, which upon being reconstituted have exceeded the government limits in titratable acidity to be classified as "Extra Grade." This is the …
-
Effect of lumen acidity and osmolality on duodenal blood flow and motility
Thesis (M.S.)--Michigan State University. Dept. of Physiology, 1971
-
Acidity of certain Virginia soils as related to their mineralogy and chemistry
… were to (1) segregate the forms of soil acidity in certain Virginia soils and to study each form Independently, (2) to develop techniques to more accurately define the components of soil acidity, and (3) to relate forms of soil acidity to mineralogical and chemical properties and genesis …
-
Impact of soil acidity on groundnut productivity in Mpumalanga and KwaZulu - Natal Province
… ability of the test varieties to tolerate soil acidity differed. Varieties JL -24, Inkanyezi, RGV -784 and Rambo were highly sensitive to soil acidity, since their grain yields increased substantially when the lime rates were increased at the Lowveld College of Agriculture farm and at Manguzi. …
-
The variation of the gas phase acidity of a cysteine residue in oligopeptides
<p>The altered acidities of amino acid residues in folded proteins can be used as a good indication for the diverse functions, stabilities as well as folding-unfolding states of the proteins. Previously, our group has investigated the gas phase acidities of a series of cysteine containing peptides …
-
Zeolite deactivation during hydrocarbon reactions: characterisation of coke precursors and acidity, product distribution
The catalytic conversion of hydrocarbons over zeolites has been applied in large scale petroleum-refining processes. However, there is always formation and retention of heavy by-products, called coke, which causes catalyst deactivation. This deactivation is due to the poisoning of the acid sites …
-
Lithium Transport in Monovalent Selective Electrodialysis: Effect of Brine Salinity, Acidity and Composition
Lithium is an increasingly important resource for electrification but current supply will not keep up with expected demand. Monovalent selective electrodialysis (MSED) offers a potential method to separate lithium from other elements from salt lake brine. A monovalent selective electrodialysis …
-
Challenging the Limitations of the Streitwieser Lithium Indicator Acidity Scale with Cyclopentadiene Derivatives
… linking the Streitwieser Lithium Indicator (SLI) acidity scale to the aqueous Bronsted-Lowry scale to give true pKa values to carbon acids measured on the SLI scale. To achieve this goal, we needed at least one carbon acid that is both water- and THF-soluble and that has an acidity appropriate to …
-
Influence of Molecular Orientation and Surface Coverage of w-Functionalized Mercaptans on Surface Acidity
… of the functional group has on surface acidity. 3-dodeycloxymercaptophenol and 4-dodecyloxymercaptophenol differ in that the hydroxyl group is substituted on different carbons of the benzene ring. The difference in substitution patterns should present the hydroxyl group in different …
Page 1 of 24