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Articles 3481 - 3510 of 3510
Full-Text Articles in Engineering
I. Certain Azo Dyes Derived From 2-Amino Phenol-4-Sulfonic Acid; Ii. A Study Of The Reduction Rate Of 2-Nitro Phenol-4-Sulfonic Acid, Albert Edward Cohen
I. Certain Azo Dyes Derived From 2-Amino Phenol-4-Sulfonic Acid; Ii. A Study Of The Reduction Rate Of 2-Nitro Phenol-4-Sulfonic Acid, Albert Edward Cohen
Theses
No abstract provided.
Calcium Metal : Laboratory Preparation By Vacuum Metallurgy, George Robert Couch
Calcium Metal : Laboratory Preparation By Vacuum Metallurgy, George Robert Couch
Theses
No abstract provided.
Adiabatic Distillation Of Dilute Formaldehyde Solutions, Robert L. Craven
Adiabatic Distillation Of Dilute Formaldehyde Solutions, Robert L. Craven
Theses
No abstract provided.
The Influence Of Agitation On A Continuous Counter-Current Liquid-Liquid Extraction Column, William John Hartmann
The Influence Of Agitation On A Continuous Counter-Current Liquid-Liquid Extraction Column, William John Hartmann
Theses
This work presents operating data and correlations of agitated extraction equipment studied under continuous counter-current flow.
The experimental work was carried out in at agitated column 36 inches in length with an internal diameter of 2 inches using the system toluene, benzoic acid and water. The working section of the column was 24 inches. The design of the column used for the experimental work is similar to that proposed in a patent by van Dijck (3). The column is similar only to the extent that the patent covers numerous conditions of vertical agitation.
The distribution data and the equilibrium solubility …
The Development Of Executives, Joseph Ralph Messineo
The Development Of Executives, Joseph Ralph Messineo
Theses
The ever-increasing trend toward improved industrial efficiency creates the problem of supplying capable executives. The supply of executive manpower in business corporations ever needs replenishing. Expansion of operations, retirements, and other circumstances cause executive demands and vacancies which must be filled. Therefore, the purpose of this thesis is to analyze and report on what industry is actually doing today to develop executives to meet present and future requirements. Also, it is the author's intent to formulate a comprehensive executive development program that can be adopted with some limitations by industry for the building of an executive reserve.
In order to …
Nitration Of Derivatives Of 2,5-Dichlorobenzenesulfonic Acid, William J. Conradi
Nitration Of Derivatives Of 2,5-Dichlorobenzenesulfonic Acid, William J. Conradi
Theses
The proof that a nitro group enters meta to the sulfonic acid group of 2,5-dichlorobenzenosulfonamide and 2,5-dichlorobenzenosulfonanilide is presented.
The preparation of several new compounds is described.
An unsuccessful attempt to prepare 2,5-dichloro-3-nitrobenzenesulfonyl chloride from 2,5-dichloronitrobenzene is also described.
Preparation And Spectra Of M-Nitrobenzoates And M-Aminobenzoates, Peter Tikey Kapsamalis
Preparation And Spectra Of M-Nitrobenzoates And M-Aminobenzoates, Peter Tikey Kapsamalis
Theses
A study of the synthesis of a series of new m-nitrobenzoates, m-aminobenzoates and several derivatives of the latter is presented.
Physisal constants and analytical determinations are presented, including the ultraviolet absorption spectra of the compounds prepared.
Ultrafiltration In The Pigment Field : A Critical Literature Survey, Charles Walter Manger
Ultrafiltration In The Pigment Field : A Critical Literature Survey, Charles Walter Manger
Theses
The objective in this work has been to determine, through a critical literature survey, the possible application of ultrafiltration, and other related techniques, towards the solution of certain problems encountered in the research and testing of various pigments.
Among these problems may be mentioned the following:
- The determination of water-soluble salts in pigments, which when dispersed in water to leach out the salts, tend to peptize, thus being unfilterable through the usual filter paper. Among these pigments are the following: iron blue, certain chrome yellows, pigment green B, copper maroon, and several others. It may be added that these pigments …
Correlation Of The Number Of Theoretical Plates Vs. Reflux Ratio, George Ignatius Parisi
Correlation Of The Number Of Theoretical Plates Vs. Reflux Ratio, George Ignatius Parisi
Theses
A correlation is presented from which the number of theoretical plates for a given separation by distillation can be estimated as a function of the reflux ratio. The effects of relative volatility and feed composition upon such a correlation are also studied. Smoker's (1) equation was used in calculating the data. The results were obtained by varying the several parameters which have to be given for any separa tion desired. These include feed compositions of 0.25, 0.50, and 0.75; relative volatilities of 1.1, 1.2, 1.5, and 2.0; and various reflux ratios. The overhead product and bottoms product compositions were kept …
Substituted Ureas, Roy Earl Parks
Substituted Ureas, Roy Earl Parks
Theses
Nitrosomethylurea in aqueous medium decomposes on heating to methanol, nitrogen and cyanic or isocyanic acid. Primary amines present during the decomposition react with cyanic acid to form substituted ureas, readily isolated in high purity and good yield.
The Effect Of Surface Tension Upon The Flow Of Fluids Through Packed Beds, William Charles Streib
The Effect Of Surface Tension Upon The Flow Of Fluids Through Packed Beds, William Charles Streib
Theses
Flow tests through beds of unconsolidated sand, glass beads and 1/4 inch Berl saddles showed that wide variations in the surface tension of a fluid had no significant effect on its flowrate through the bed. Viscosity and density were the only fluid properties affecting such flow. Excellent comparative results were observed between the flowrates through sand beds and those predicted by the Leva equation.
The complex Brownell and Katz equation for predicting the residual saturation of a packed bed was found to apply for fluids having a much wider range of surface tension than those originally used to derive their …
Vapor-Liquid Equilibria, Binary Mixtures Of Methyl Alcohol, Isopropyl Alcohol And N-Butyl Alcohol With Benzene, William Andrew Flynn
Vapor-Liquid Equilibria, Binary Mixtures Of Methyl Alcohol, Isopropyl Alcohol And N-Butyl Alcohol With Benzene, William Andrew Flynn
Theses
No abstract provided.
Isobaric Heat Capacity Of Ethylene Over A Wide Range Of Temperature And Pressure, Robert John Sibilia
Isobaric Heat Capacity Of Ethylene Over A Wide Range Of Temperature And Pressure, Robert John Sibilia
Theses
The effect of pressure and temperature on the isobaric heat capacity at constant volume for ethylene relative to the ideal gas state is presented. The results cover pressures from 0 to 10,000 FA and temperatures from 32.0°F to 2372.0°F.
The deviation of the isobaric heat capacity of ethylene from the ideal gas state for the wide range of pressure and temperature covered was found from an equation derived from the Benedict-Webb-Rubin equation of state. Graphs and tables relating the deviation of the isobaric h capacity: the deviation of heat capacity at constant volume, pressures and temperature are included.
The results …
The Synthesis Of 2-Aminophenol-4-Sulfonic Acid, Joseph Salvatore Milazzo
The Synthesis Of 2-Aminophenol-4-Sulfonic Acid, Joseph Salvatore Milazzo
Theses
No abstract provided.
Vapor Phase Catalytic Air Oxidation Of P-Cymene, Salvatore Joseph Finelli
Vapor Phase Catalytic Air Oxidation Of P-Cymene, Salvatore Joseph Finelli
Theses
No abstract provided.
Manual For Quality Control, Frank Andrew Antalec
Manual For Quality Control, Frank Andrew Antalec
Theses
Modern trends of industrial development have been directed toward increased output of products with greater precision and uniformity. This necessitates an inspection function that reflects more effective results than ever before. In order to rise to this occasion full use must be made of today's principles and techniques of inspection and quality control.
Industry demand the use of high precision measuring instruments to aid the inspection function in obtaining effective results. Recently, however, the techniques of Quality Control have become a well-known, useful, tool for the solution of many manufacturing problems. Effective use of these techniques depends on their complete …
Adherent Electroplating On Molybdenum, Robert Marius Hansen
Adherent Electroplating On Molybdenum, Robert Marius Hansen
Theses
Molydbenum, due to its high temperature properties, and potential supply, is becoming a very important structural material, particularly in the field of electronics, however, it is not new in this part of industry. As temperatures go higher in various fields, the need for satisfactory materials becomes of paramount importance.
One of the ways in which to overcome the disadvantages of poor stability, brazing difficulties, and surface resistance to high frequency conduction, is by electroplating. Until recently there has been no satisfactory method for obtaining adherent deposits. The purpose of this report has been to investigate these recent processes and devise …
A Study In Emulsions, Edward Arthur Morse
A Study In Emulsions, Edward Arthur Morse
Theses
An emulsion is a dispersion of one liquid in another liquid, the liquids being insoluble in each other. An emulsion consists of two phases, a continuous phase and a dispersed phase. The dispersed phase consists of tiny droplets or particles of one liquid which is completely surrounded by the other liquid comprising the continuous phase. One of the many factors affecting the stability of an emulsion is the size of the particle of the dispersed liquid.
This study is concerned with one emulsion prepared by different mechanical devices and under different conditions. The units of equipment employed are Eppenbach Colloid …
Cost Reduction Through Closer Control Of Quality, Walter Robert Kuzmin
Cost Reduction Through Closer Control Of Quality, Walter Robert Kuzmin
Theses
The economy of our nation differs today from that of World War II or pre-World War II days by the fact that a war-production program is being carried on without adversely affecting the production or civilian goods, At the same time management is confronted with rising costs due to the inflationary spiral of wanes and materials. To mire a profit on Products and remain in competition, management is forced to apply the latest cost reduction methods. Because of the dual economy, companies are quoting on civilian goods and war Products. Contracts released by the government specify that; adequate inspection and …
Preparation And Reduction Of Azo Dyes From 2-Amino Phenol-4-Sulfonic Acid, Guy J. Walker
Preparation And Reduction Of Azo Dyes From 2-Amino Phenol-4-Sulfonic Acid, Guy J. Walker
Theses
Reduction of azo dyes is presented as a method for the synthesis of 2-amino phenol-4-oulfenic acid.
The synthesis and reduction of some azo derivatives of 2-amino phenol-4-sulfonic acid are described.
Preparation of the diazonium compounds of aniline, vitro aniline, 1-amino-2-nanhthol, 1-amino-2-naphthol-1-sulfonic acid, 2-amino phenol-4-sulfonic acid, 1-naphthol 1-amino, and 2-naphthylamine is discussed and their ability to couple with phenol-4-sulfonic acid evaluated.
Reduction of the resultant azo dyes is discussed with reference to fission and the benzidine rearrangement.
An overall presentation of results is Given in Tables I, II, and III on pages 27 - 29.
The Synthesis Of 2-Amino-4-Chlorophenol-6 Sulfonic Acid, Herman Albert Bronner
The Synthesis Of 2-Amino-4-Chlorophenol-6 Sulfonic Acid, Herman Albert Bronner
Theses
The work described in this thesis was undertaken with the view of exploring a reaction sequence suggested by early French investigators to synthesize 2-amino-4-chlorophenol-6-sulfonic acid especially in reference to the German claim that a low yield of product would result following this preparation, In particular, a successful application of this procedure would afford a relatively direct and inexpensive route to the sulfonic acid which is used as an azo dyestuff intermediate and could possibly find application in medicinal chemistry.
It was found that sulfonation and nitration of p-dichlorobenzene gave a high yield of the sodium-2-nitro-1,4-3 dichloro-benzene-6-sulfonate (91%) when using the …
Tetranitromethane And Related Compounds, Thomas James Tully
Tetranitromethane And Related Compounds, Thomas James Tully
Theses
No abstract provided.
Isobaric Heat Capacity Of Methane Over A Wide Range Of Temperature And Pressure, Edward W. Sledjeski
Isobaric Heat Capacity Of Methane Over A Wide Range Of Temperature And Pressure, Edward W. Sledjeski
Theses
No abstract provided.
Waterfront Construction In New York Harbor, Carman William Garrison
Waterfront Construction In New York Harbor, Carman William Garrison
Theses
The following chapters are devoted to the various phases of that branch of construction which is followed from the offshore side of the waterfront. This branch, in the parlance of the building trades, is known as dockbuilding. Years ago all waterfront structures in New York Harbor were constructed almost entirely of timber and experience taught that the most economical approach for building docks and wharves was made by utilizing floating piledrivers and derricks. Thus it happened that dockbuilders became skilled both in the use of wood framing tools and in handling marine equipment. Modern dockbuilders must have, in addition to …
Organic Ion-Exchange Materials, Harry Burrell
Organic Ion-Exchange Materials, Harry Burrell
Theses
This thesis is offered as partial fulfilment for the degree of Chemical Engineer at the Newark College of Engineering. It covers a very new subject - one which has been rather intensively developed by several investigators during the past three years. The writer has had the fortunate opportunity of working on organic ion-exchange materials at the Ellis-Foster Co., which kindly gave permission through Mr. Carleton Ellis for the publication of experimental results. Many thanks are due to Dr. Frank B. Root, the laboratory director, whose gracious, constructive criticisms aided the writer in all phases of the work.
An attempt has …
The Incandescent Lamp, E. F. Tenbroeke
The Incandescent Lamp, E. F. Tenbroeke
Theses
A brief history of the development of the incandescent lamp.
The Rahway Valley Trunk Sewer And Its Relations To, And Effect Upon The City Of Rahway, Fred A. Hedeman
The Rahway Valley Trunk Sewer And Its Relations To, And Effect Upon The City Of Rahway, Fred A. Hedeman
Theses
This treatise is divided into three separate parts, each portraying a particular phase of the Rahway Valley improvement. Although not directly connected with the Joint Meeting, the fact that I served as Assistant City Engineer in Rahway during 1931 and 1932 naturally presented to me the opportunity of attending meetings and studying the project especially as it pertained to the City of Rahway.
Part one is a general review of the activities of the Rahway Valley Joint Meeting, both prior to and after the completion of the trunk sewer. The second portion reveals some of the intricate problems evolving in …
Problems Encountered In The Development Of An Airport, A. H. Armstrong
Problems Encountered In The Development Of An Airport, A. H. Armstrong
Theses
The progress of a nation and. its transportation facilities have always advanced hand in hand.
Just as it has always beerthe Civil Engineer's problem to develop facilities for other means of transportation, such as roads, harbors, and. railroad terminals, so is it his problem today to build airports.
In presenting the problems encountered in the development of an airport, the writer has considered the airport's place in city and regional planning, as well as the part it plays in air transportation.
An expression of thanks is given to Mr. Wm. S. La Londe, Jr., professor in Civil Engineering at the …
Piles And Pile Driving, Robert W. Van Houten
Piles And Pile Driving, Robert W. Van Houten
Theses
This thesis on the subject of "Piles and Pile Driving" has been written to fulfill one of the requirements for the granting of the degree of Civil Engineer by the Newark College of Engineering. The material contained in this thesis has been gleaned from many books, catalogs, magazines and from the author's own experience. Much still needs to be accomplished in the field of research but this can be done only through the cooperation of the companies who are engaged in this work and have the equipment necessary for making many tests under actual field conditions.
The author wishes to …
Cuprous Oxide Rectification, Philip G. Cobb
Cuprous Oxide Rectification, Philip G. Cobb
Theses
It has been shown that cuprous oxide, when formed from a copper surface by suitable heat treatment, has remarkable rectifying properties towards alternating voltages applied through the oxide and copper. The purpose of our work was to investigate, the effect fully from all angles possible, and especially from those considerations affecting the constancy and permanence in the electric circuit.
The work ranged from furnace operation to tests of completed units, and further to the development of a theory explaining as completely as possible this rectifying property.
It soon became apparent, that here was ideal thesis material, and so, with proper …