• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 126
  • 32
  • 19
  • 15
  • 7
  • 6
  • 5
  • 4
  • 3
  • 3
  • 3
  • 3
  • 3
  • 3
  • 3
  • Tagged with
  • 255
  • 42
  • 27
  • 27
  • 21
  • 17
  • 16
  • 15
  • 15
  • 14
  • 13
  • 12
  • 12
  • 12
  • 11
  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
31

The atomic weight of scandium

Smith, Nicol Hamilton. January 1927 (has links)
Thesis (Ph. D.)--University of Pennsylvania, 1927.
32

The atomic weight of palladium ...

Kemmerer, George Irving. January 1908 (has links)
Thesis (Ph. D.)--University of Pennsylvania.
33

Voting Weights and Formateur Advantages in the Formation of Coalition Governments

Ansolabehere, Stephen, Snyder, James, Ting, Michael, Stauss, Aaron 10 June 2005 (has links)
No description available.
34

Sizing up the world : the body as referent in a size-judgment task /

Hallford, Ernest Wilson January 1984 (has links)
No description available.
35

A study of molecular weight (MW) and molecular weight distribution (MWD) of water-insoluble polysaccharides in ganoderma lucidum using MALDI-MS.

January 2004 (has links)
Sun Baizhong. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2004. / Includes bibliographical references (leaves 75-79). / Abstracts in English and Chinese. / ABSTRACT --- p.i / ABSTRACT (IN CHINESE) --- p.ii / TABLE OF CONTENTS --- p.iii / LIST OF FIGURES --- p.v / LIST OF TABLES --- p.vii / ABBREVIATIONS --- p.vi / ACKNOWLEDGEMENT --- p.ix / DECLARATION --- p.x / Chapter CHAPTER ONE --- INTRODUCTION / Chapter 1.1 --- Polysaccharides --- p.1 / Chapter 1.2 --- Pharmacological importance of polysaccharides --- p.2 / Chapter 1.3 --- Polysaccharides from Ganoderma Lucidum --- p.3 / Chapter 1.4 --- Characterization of polysaccharides --- p.3 / Chapter 1.5 --- Matrix-assisted laser desorption / ionization --- p.5 / Chapter 1.6 --- Matrix-assisted laser desorption / ionization of polysaccharides --- p.8 / Chapter 1.7 --- Outline of the project --- p.10 / Chapter CHAPTER TWO --- INSTRUMENTATION AND EXPERIMENTAL / Chapter 2.1 --- Time-of-flight mass spectrometry --- p.12 / Chapter 2.1.1 --- Instrumentation --- p.15 / Chapter 2.1.1.1 --- Laser system --- p.16 / Chapter 2.1.1.2 --- Ion source --- p.16 / Chapter 2.1.1.3 --- Reflector --- p.19 / Chapter 2.1.1.4 --- Detector --- p.19 / Chapter 2.1.1.5 --- Data acquisition and manipulation --- p.20 / Chapter 2.2 --- Ultraviolet-visible spectrometer --- p.21 / Chapter CHAPTER THREE --- OPTIMIZATION OF MALDI CONDITIONS FOR POLYSACCHARIDE ANALYSIS USING DMSO AS SOLVENT / Chapter 3.1 --- Introduction --- p.22 / Chapter 3.2 --- Experimental --- p.25 / Chapter 3.2.1 --- Selection of matrix materials --- p.26 / Chapter 3.2.2 --- Selection of co-matrix materials --- p.26 / Chapter 3.2.3 --- Ratios of matrix-to-analyte --- p.26 / Chapter 3.2.4 --- Effect of sample drying temperature --- p.27 / Chapter 3.2.5 --- Sample loading methods --- p.27 / Chapter 3.3 --- Results and discussion --- p.27 / Chapter 3.3.1 --- Selection of matrix materials --- p.28 / Chapter 3.3.2 --- Selection of co-matrix materials --- p.30 / Chapter 3.3.3 --- Effect of matrix-to-co-matrix ratio --- p.32 / Chapter 3.3.4 --- Effect of sample drying temperature --- p.37 / Chapter 3.3.5 --- Effect of matrix-to-analyte ratio --- p.39 / Chapter 3.3.6 --- Evaluation of sample preparation protocols --- p.43 / Chapter 3.4 --- Conclusion --- p.46 / Chapter CHAPTER FOUR --- MOLECULAR AND MOLECULAR WEIGHT DISTRIBUTION OF WATER-INSOLUBLE POLYSACCHARIDES FROM GANODERMA LUCIDUM / Chapter 4.1 --- Introduction --- p.47 / Chapter 4.2 --- Experimental --- p.48 / Chapter 4.2.1 --- Extraction of water-insoluble polysaccharides from Ganoderma Lucidum --- p.48 / Chapter 4.2.2 --- Gel permeation chromatography of water-insoluble polysaccharides --- p.49 / Chapter 4.2.3 --- Phenol sulfuric acid assay --- p.51 / Chapter 4.2.4 --- MALDI-TOF analysis --- p.51 / Chapter 4.2.5 --- Bradford assay --- p.52 / Chapter 4.3 --- Results and discussion --- p.52 / Chapter 4.3.1 --- Extraction of water-insoluble polysaccharides from Ganoderma Lucidum --- p.52 / Chapter 4.3.2 --- Fractionation of water-insoluble polysaccharides using gel permeation chromatography (GPC) --- p.54 / Chapter 4.3.3 --- MALDI-TOF analysis of fractionated polysaccharides --- p.57 / Chapter 4.3.4 --- Carbohydrate content analysis of fractionated polysaccharides --- p.62 / Chapter 4.3.5 --- MW and MWD of water-insoluble polysaccharides extracted from Ganoderma Lucidum --- p.69 / Chapter 4.4 --- Conclusion --- p.71 / Chapter CHAPTER FIVE --- CONCLUDING REMARKS / Chapter 5.1 --- Conclusion --- p.73 / REFERENCES --- p.76 / APPENDIX --- p.81 / Appendix A Reaction scheme of carbohydrate with phenol in phenol-sulfuric acid assay --- p.81
36

On ancient measure

Sieburth, Guenter, January 1966 (has links)
Thesis (Ph. D.)--University of Wisconsin--Madison, 1966. / Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.
37

Performance of ejectors as a function of the molecular weight of vapors ...

Haedrich, Vincent William, January 1937 (has links)
Thesis (Ph. D.)--Columbia University, 1938. / Cover title. Vita. Bibliography: p. 50.
38

A microscale molecular weight analysis method for characterizing polymers solutions of unknown concentrations

Li, Melissa. January 2008 (has links)
Thesis (M. S.)--Biomedical Engineering, Georgia Institute of Technology, 2009. / Committee Chair: Hang Lu; Committee Co-Chair: Rachel Chen; Committee Member: Johnna Temenoff; Committee Member: Yonathan Thio. Part of the SMARTech Electronic Thesis and Dissertation Collection.
39

The temperature coefficient of the weight of a falling drop as a means of estimating the molecular weight and the critical temperature of a liquid ...

Higgins, Eric B. January 1908 (has links)
Thesis (Ph. D.)--Columbia University, 1908. / Biography.
40

Molecular weight and concentration dependence of steady state compliance and entanglement effects for polystyrene solutions

Holmes, Larry Allan, January 1968 (has links)
Thesis (Ph. D.)--University of Wisconsin--Madison, 1968. / Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliography.

Page generated in 0.0327 seconds