Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Engineering (2419)
- Physical Sciences and Mathematics (1255)
- Electrical and Computer Engineering (593)
- Arts and Humanities (572)
- Electrical and Electronics (546)
-
- Chemical Engineering (544)
- Business (497)
- Social and Behavioral Sciences (443)
- Environmental Sciences (427)
- Medicine and Health Sciences (416)
- Computer Sciences (407)
- Education (379)
- Life Sciences (368)
- Mechanical Engineering (334)
- Biomedical Engineering and Bioengineering (281)
- Civil and Environmental Engineering (256)
- Chemistry (156)
- Operations Research, Systems Engineering and Industrial Engineering (141)
- Physics (140)
- Civil Engineering (131)
- Materials Science and Engineering (124)
- Psychology (113)
- Business Administration, Management, and Operations (105)
- Environmental Engineering (102)
- Art and Design (96)
- Computer Engineering (90)
- Manufacturing (80)
- Mathematics (73)
- History of Art, Architecture, and Archaeology (72)
- Biology (62)
- Institution
-
- Rochester Institute of Technology (9374)
- New Jersey Institute of Technology (2663)
- Lindenwood University (1188)
- United Arab Emirates University (887)
- Munster Technological University (563)
-
- University of Alabama in Huntsville (492)
- Southern Illinois University Carbondale (305)
- The University of Notre Dame Australia (297)
- University of Missouri, St. Louis (233)
- North Carolina Agricultural and Technical State University (223)
- University of San Diego (67)
- Sigma Theta Tau International Honor Society of Nursing (60)
- Seton Hall University (51)
- Jacksonville State University (49)
- Technological University Dublin (42)
- University of North Alabama (41)
- Zayed University (10)
- St. Mary's University (7)
- Alabama State University (1)
- Edith Cowan University (1)
- UAlaska System (1)
- Keyword
-
- None provided (647)
- Thesis (392)
- Photography (256)
- Art (154)
- Machine learning (144)
-
- Design (142)
- Printing (140)
- Mechanical engineering (135)
- Graphic design (133)
- Sculpture (130)
- Imaging science (129)
- Animation (120)
- Painting (113)
- Fine art (92)
- Chemistry (76)
- Computer engineering (72)
- Film (68)
- Packaging science (66)
- Computer graphics (65)
- Computer vision (65)
- Education (65)
- Image processing (65)
- Remote sensing (63)
- Sustainability (63)
- Architecture (60)
- Furniture design (58)
- Ceramics (57)
- Ireland (56)
- Electrical engineering (54)
- Simulation (54)
- Publication Year
- Publication Type
Articles 16351 - 16380 of 16555
Full-Text Articles in Entire DC Network
A Kinetic Densitometer, Jerry Hughes
Experiments In The Potentialities Of Glazes Developed From Naturally Occurring Minerals And Industrial Waste Products Common To Potsdam, St. Lawrence County, New York, Arthur Sennett
Theses
Not Included
Effect Of Liquid Viscosity On Performance Of Wire Mesh Entrainment Separators, Raymond Paul Vogel
Effect Of Liquid Viscosity On Performance Of Wire Mesh Entrainment Separators, Raymond Paul Vogel
Theses
The knitted wire mesh entrainment separator, commonly referred to as a demister*, is in common use to separate entrained liquid from vapor streams. However, little quantitative information is available concerning the effect of physical properties of the entrained liquid on allowable gas velocities.
Studies were made on two demister styles to determine the effect of liquid viscosity on demister performance, Liquid viscosities from 0.9 to 12 centipoise were investigated using water, glycerine-water mixtures and heavy no. 2 fuel oil as the test liquids. Air was used as the gas medium in all cases.
Regression analysis of the test data indicates …
Reconstructed Wavefronts: Comparative "Quality" Of Several Systems, William Cook
Reconstructed Wavefronts: Comparative "Quality" Of Several Systems, William Cook
Theses
Not provided.
Graphic, Identity Symbol Theories And The Creation Of An Institutional Graphic Image, James J. Burke Jr.
Graphic, Identity Symbol Theories And The Creation Of An Institutional Graphic Image, James J. Burke Jr.
Theses
Not provided.
Investigating Media As A Means Of Expression, Wolodymyr Pylyshenko
Investigating Media As A Means Of Expression, Wolodymyr Pylyshenko
Theses
None provided.
A Study Of Early Christian Symbols And Their Use In A Contemporary Church Interior, Marcella Connorton
A Study Of Early Christian Symbols And Their Use In A Contemporary Church Interior, Marcella Connorton
Theses
None provided.
Surface Treatment Of Pottery, Jon B. Curtis
The Design And Fabrication Of A Cell To Measure The Thermal Conductivity Of Viscous Fluids, Donald William Hagedorn
The Design And Fabrication Of A Cell To Measure The Thermal Conductivity Of Viscous Fluids, Donald William Hagedorn
Theses
The purpose of this investigation was to design and construct a device to measure the thermal conductivity of viscous fluids. The thermal conductivity data obtained with this device will be used in later work on predicting film coefficients of heat transfer to non-Newtonian fluids.
A cell of the concentric cylinder type was fabricated. Main features of the cell are: two concentric bronze cylinders separated by a 1/8 inch annular space, a central water capable of producing a 10° C temperature gradient in the annular space, and two guard heaters on individual rheostats to control the end looses. The temperatures are …
Slow Compression Crushing Of Glass In Fluids, Peter Joseph Lucchesi
Slow Compression Crushing Of Glass In Fluids, Peter Joseph Lucchesi
Theses
Generally only a small fraction of the energy used in crushing, on the order of 1 or 2%, appears as new surface energy in the product. The purpose of this work was to determine if higher efficiencies could be achieved by the use of different fluids surrounding the particle during crushing.
Single particles of solid glass cylinders, standing on. end, were crushed by slow compression in the presence of air, water, methanol, carbon tetrachloride, and glycerol. No effect was found with the various fluids even when considerable pressure was developed in the surrounding fluid in some of the glycerol experiments. …
Carbon Tetrachloride-Xylene Equilibria, Michael Jay Ram
Carbon Tetrachloride-Xylene Equilibria, Michael Jay Ram
Theses
The liquid-liquid equilibria of the ternary systems carbon tetra-chloride-xylene-propylene glycol and carbon tetrachloride-xylene-diethylene glycol were investigated. The effectiveness of the glycols as selective solvents for xylene was represented by a plot of weight ratio xylene to carbon tetrachloride in each phase. It was found that the diethylene glycol was the better of the two solvents at concentrations resulting in more than 75% xylene in the xylene-carbon tetrachloride rich layer. At the lower xylene concentrations the propylene glycol was found more effective as a selective solvent.
Separation Of Mononitrotoluenes By Clathration, Eugene Ivashkiv
Separation Of Mononitrotoluenes By Clathration, Eugene Ivashkiv
Theses
Thirty-one Werner-type compounds have been prepared, at least 10 of which were not previously investigated. Manganus tetra(4-methylpyridine)dithiocyanate, zinc tetra(4-methylpyridine)dithiocyanate, ferrous tetra(4-methylyridine)dithiocyanate, nickel tetra(4-methylpyridine)dithiocyanate and nickel tetra(pyridine) dithiocyanate can be used for clathration of mononitrotoluenes. The best results have been obtained with the complex formed between nickel dithiocyanate and l-methylpyridine. Three clathration stanges are needed to obtain 99 percent pure para-nitrotoluene. A clathration efficiency of 60 percent has been achieved per stage. A new process for the recovery of clathrated compounds has been developed. Clathration can be carried out as a cyclic process without the complex consumption when the developed method …
Electromotive Deposition, Storage And Dissolution Of Active Hydrogen Upon Carbon Electrodes, Joseph Gabriel Di Masi
Electromotive Deposition, Storage And Dissolution Of Active Hydrogen Upon Carbon Electrodes, Joseph Gabriel Di Masi
Theses
The electromotive deposition, storage and dissolution of hydrogen upon carbon electrodes having real surface areas varying from one meter2/ gram to one-hundred ten meters2/ gram vas inves-tigated.
It has been found that a correlation exists between hydrogen storage and real area of the inner electrode. However, it has been further shown that storage of electromotive hydrogen is only for short periods of time, that is, several hours.
A Correlation Of Viscosity Of N-Paraffin Hydro-Carbons, Sheldon Krueger
A Correlation Of Viscosity Of N-Paraffin Hydro-Carbons, Sheldon Krueger
Theses
A linear relationship between the Log viscosity and the Log vapor pressure is shown to exist for each n-paraffin hydrocarbon from C3 to C20. The average error of these equation e is ± 1.5 per cent of the American Petroleum Institute's1 experimental values. The use of individual slopes for each equation is shown to be store accurate than one alone for all the viscosity data. These slopes e:thibit an unusual behavior by having a minimum value at undecane.
The slopes and intercepts are correlated with carbon number (the number of atoms in a n-paraffin Chain). These …
Equations Of State For Propyne, Thomas Marshall Stark
Equations Of State For Propyne, Thomas Marshall Stark
Theses
P-V-T data for propyne have been fit using the Martin-Hou and the Benedict-Webb-Rubin equations of state. The Martin-Hou equation, with its constants calculated from the critical properties and a vapor pressure point for the gas, fit up to 1.1 to 1.5 times the critical density with deviations of less than 1%. The Benedict-Webb-Rubin equation, with its constants calculated by the method of Joffe, resulted in greater deviations in the low pressure region than did the Martin-Hou equation; however, it also provided a better approximation of the data at high pressures and lower temperatures. The best over-all fit was obtained using …
Vapor Liquid Equilibria, Niranjan Prasad Shukla
Vapor Liquid Equilibria, Niranjan Prasad Shukla
Theses
A survey of the literature gave no reference to the n-Propanol Glycol system while the n-Propanol-Benzene system had been previously studied. Experimental data were found to agree closely with those existing in literature for the n-Propanol-Benzene binary system.
A ternary miscibility diagram at fixed temperature was found to give first-type of miscibility curve, i.e. n-Propanol was completely miscible in all proportions with Benzene and Ethylene Glycol, while Benzene and Ethylene Glycol were found to be partially miscible. The plait-point was determined by drawing tie-lines and using the Sherwood method as well as by the loga rithmic method of Hand. Both …
Viscosity Of A Three Component System : Benzene-Ethanol-Acetic Acid At 20 Degrees C., 25 Degrees C., And 30 Degrees C, Alan Alvin Schetelich
Viscosity Of A Three Component System : Benzene-Ethanol-Acetic Acid At 20 Degrees C., 25 Degrees C., And 30 Degrees C, Alan Alvin Schetelich
Theses
The viscosity for the ternary system benzene-ethanol-acetic acid, has been determined. The viscosity maximum shown in the ethanol-acetic acid system is clearly distinguished in the ternary system as well. The viscosity minima which occur in the benzene-ethanol, and benzene-acetic acid systems are too slight to be readily apparent in the ternary system.
The ternary system viscosity was determined at temperatures of 20, 25, and 30° C. The effect of increasing the temperature from 20° C for the ternary system was to produce corresponding curves of lower viscosity. The maximum viscosity noted in the ternary system as well as the maximum …
The Electrical And Optical Properties Of Organic Semiconductors. Part 1 : Preliminary Survey And Purification Techniques, Bohdan Robert Czorny
The Electrical And Optical Properties Of Organic Semiconductors. Part 1 : Preliminary Survey And Purification Techniques, Bohdan Robert Czorny
Theses
The purpose of this work was to investigate the field of organic semiconductors and in particular to develop the means for preparing these materials in suitable condition for measurement and study of semiconducting properties. The first aspects of this project concerned with a preliminary survey of the field and techniques of ultra purification are covered in this work.
Anthracene was selected for investigation because it is the organic semiconductor most commonly studied by other investigators, and considerable published information exists for corroboration.
The preliminary survey elucidated the most promising methods of purification, which were chemical synthesis, sublimation, recrystallization from solvents …
The Corrosiveness Of Phenols, Edgar George Kaup
The Corrosiveness Of Phenols, Edgar George Kaup
Theses
The effects of oxidizing agents, heat, light, and metallic catalysts on coloration in phenols is discussed, using data collected from the literature. The oxidation reaction is concluded to be the con-trolling factor in coloration. Corrosion data from laboratory experiments, field tests, and operating plants is presented for metals and non-metals in concentrated phenolic systems.
Synthesis Of Trimethyl Borate By Ester Interchange, Hugh Murphy
Synthesis Of Trimethyl Borate By Ester Interchange, Hugh Murphy
Theses
Trimethyl borate was prepared by transesterification of a high—boiling methyl ester with a high—boiling trialkyl borate using a metal alcholate catalyst. Interchange occurred between n—amyl borate and the following methyl esters: dimethyl sulfate, parahydroxy methyl benzoate, methyl salicylate, and methyl stearate. Interchange also took place between methyl stearate and tribenzyl borate, tri—n—propyl borate, and tri—m, p—cresyl borate. Highest yields and purities resulted from reactions involving methyl stearate. Catalysts employed were magnesium—aluminum ethylate and aluminum Isopropoxide.
Two methods of separating the methanol—methyl borate azeotrope were evaluated: sulfuric acid extraction and salt splitting. Extraction with sulfuric acid was determined to be the …
A Study Of Continuous Photochemical Hydrolysis, Robert Parlante, Theodore Arthur Gropler
A Study Of Continuous Photochemical Hydrolysis, Robert Parlante, Theodore Arthur Gropler
Theses
In this investigation, the ultraviolet absorption spectra and the batch photochemical hydrolysis of monochloroacetic and monobromoacetic acid, and their potassium and sodium salts, have been measured and compared with those existing in the literature.
The continuous photochemical hydrolysis of sodium chloroacetate has been investigated for the first time. The continuous photolysis of uranyl oxalate was investigated and used as a chemical actinometer.
Gaseous material in the reactant feed has been found to be important at low flow rates.
A Study For Rural Development, Lawrence Irving Prashaw
Isobaric Vapor-Liquid Equilibria System : Benzene, Chlorobenzene, Phenol, Larry Madestau
Isobaric Vapor-Liquid Equilibria System : Benzene, Chlorobenzene, Phenol, Larry Madestau
Theses
Isobaric vapor-liquid equilibria were determined experimentally for the three binary systems benzene-chlorobenzene, benzene-phenol, and chlorobenzene-phenol; and for the corresponding ternary system benzene-chlorobenzene-phenol. Constants for the Chao modified Redlich-Kistler equations were calculated from the experimental data by the method of least squares. These constants were then used to predict vapor-liquid equilibria for the ternary system. The predicted values showed satisfactory agreement with those found experimentally.
A modified Ellis still was used for obtaining equilibrium data. Samples of vapor and liquid phases were analyzed by means of the F & M Model 720 vapor phase chromatograph. Benzene, chlorobenzene, and phenol used in …
Nuclear Quadrupole Resonance Of Chlorine35 In Ammonium Chlorate And Ammonium Perchlorate, James Derwin King
Nuclear Quadrupole Resonance Of Chlorine35 In Ammonium Chlorate And Ammonium Perchlorate, James Derwin King
Theses
Nuclei which have a spin number, I, greater than 1/2 usually have an electric quadruple moment as well as a magnetic moment. The electric quadrupole moment describes the deviation from spherical symmetry of the positive charge over the nucleus. Interaction of this electric quadruple moment of the nucleus with an inhomogeneous (axially symmetric) electric field existing in molecules and crystals due to the surrounding charge cloud causes radio frequency resonances to exist. The resonant frequency is dependent on the nuclear quadruple moment as well as the shape and magnitude of the electric field existing at the nucleus due to the …
Classroom Discipline, Lorene H. Armstrong
Classroom Discipline, Lorene H. Armstrong
Theses
Constructive classroom discipline is an important part of the educative process. It provides children with the opportunity to experience the satisfaction of fitting into a social group in an atmosphere which is conducive to learning and which promotes healthy emotional control. Academic learning and disciplined behavior are inseparable. If the latter breaks down, the former is impaired. Good teaching is made possible only by good discipline. This paper will explore, by means of the research, what is considered good discipline in the classroom.
Spenser: Reflections And Parallels In The Romantic Poets, Sara Rivers Aderholdt
Spenser: Reflections And Parallels In The Romantic Poets, Sara Rivers Aderholdt
Theses
This paper calls attention to reasonable effects, noticeable echoes, and remarkable parallels of Edmund Spenser's philosophy and his treatment of myth and symbol as found in the Romantic poets.
Photomicrographic Inspirations For Graphic Design, David Bradley Smith
Photomicrographic Inspirations For Graphic Design, David Bradley Smith
Theses
Not provided.
Wilderness: A Visual Communication For Conservation, Joan Marinelli
Wilderness: A Visual Communication For Conservation, Joan Marinelli
Theses
Not provided.
The Design And Execution Of A Book Of Children's Verse, Claudia Symonds
The Design And Execution Of A Book Of Children's Verse, Claudia Symonds
Theses
Not provided.
Epoxy Compound And Polystyrene Sheet Combined Decoratively With Wood, John Wright
Epoxy Compound And Polystyrene Sheet Combined Decoratively With Wood, John Wright
Theses
None provided.