Digital Commons Network^™

Separate Refining Versus Mixed Refining Of An “Easy” And “Hard” Refining Pulp, Richard M. Dennany

Paper Engineering Senior Theses

A study of the strength development (mullen and tear) of mixtures of "easy" and "hard" refining pulp, in which the pulps were refined as a mixture with that in which they were separately refined, and then mixed, reveals that separate refining develops mullen to the same extent as does mixed refining, but that a higher tearing resistance at the same freeness and mullen can be obtained with separate refining.

Utilization Of Deinking Waste, Richard H. Jones

Paper Engineering Senior Theses

Introduction

In research aimed at utilization of sludge obtained from primary sedimentation of deinking mill wastes a literature study was made to determine what has been done toward meeting these ends and what new lines of thought needed investigation.

Our first thought in a literature survey was to find out the nature of the deinking sludge. It was found that the composition of deinking solid varies greatly from mill to mill and is determined by the waste paper used. A commercial laboratory analysis showed that the sludge is principally clay and fiberous materials (Table I) (1).

A early as 1931 …

A Study Of Reuse And Possible Disposal Of Clarified Cooking Liquors From Deinking Systems, Uldis I. Ievans

Paper Engineering Senior Theses

Recovery or partial reuse of spent cooking liquors, originating in the manufacture of chemical and semi-chemical wood pulps, has been explored very thoroughly. The recovery or reuse of these spent cooking liquors has been of great economical significance to the paper industry.

Limited information has been available on the reuse of spent cooking liquors from deinking systems.

Interrelationship Between Brain Damaging Processes And Peptic Ulceration, Perforation And Hemorrhage, James A. Marvel

Henry Ford Hospital Medical Journal

No abstract provided.

Clinical Evaluation Of Renal Tubular Phosphorus Reabsorption Test, Boy Frame, Raymond Mellinger

Henry Ford Hospital Medical Journal

No abstract provided.

Hypothalamic Control Of The Adenohypophysis, James A. Orr

Henry Ford Hospital Medical Journal

No abstract provided.

Abstracts Of Recent Publications Of The Professional Staff Of The Henry Ford Hospital And The Edsel B. Ford Institute For Medical Research

Henry Ford Hospital Medical Journal

No abstract provided.

Fibrous Papermaking Materials Developed Since 1950, Thomas C. Elias

Paper Engineering Senior Theses

This thesis describes in its literature survey the general nature of synthetic fibers and the problems involved in their use in papermaking. Several types of organic and inorganic fibers and the benefits obtainable from their use are discussed.

Experimental blends of aluminum and wood pulp were prepared and evaluated as to their physical properties. Procedures for making sheets containing 100 percent Acrilan and blends with sulphite pulp are described. The results of three methods of drying these handsheets are reported.

Electron Microscopy Of The Free Border Of The Human Intestinal Epithelial Cell, William S. Haubrich, John H. L. Watson, William O'Driscoll, Virginia Valentine

Henry Ford Hospital Medical Journal

No abstract provided.

Comparison Of Beater Additives With Gelatinized Sulphite On Strength Of Kraft Handsheets, Ronald T. Gielczyk

Paper Engineering Senior Theses

A literature survey shows that a great deal of work has been done on beater additives. It also showed that there is little or no agreement among workers in this field.

Laboratory work was carried out comparing blends of pulp made up of a sulphite pulp beaten to a "gelatinized" mass and a kraft pulp beaten to two different freeness levels with the same kraft pulps to which guar gum and oxidized potato starch had been added. Results show that guar gum is the best strength developer when both millen and tear are considered.

Low Shrinkage Bleaching Of Unbleached Neutral Sulphite Semichemical Pulp, Jobe B. Morrison

Paper Engineering Senior Theses

The main objective of this research project was the investigation of the most feasible method for the bleaching of a soft-cooked unbleached neutral sulphite semichemical aspen pulp cooked to a 70 percent yield. Furthermore, treatment of unbleached, laboratory bleached and commercially bleached neutral sulphite semichemical pulp with a new chemical, sodium borohydride, was also carried out.

The results of our experimental work showed that, the best bleaching procedure was when 15 percent chlorine as hypochlorite was used in the first stage, followed by a hydrochloric acid soaking stage with a final treatment of 2.6 percent hydrogen peroxide. With the above …

Determination Of Chemical Composition Of Wood Pulp Hydrolyzates By Paper Chromatography, Earl W. Malcolm

Paper Engineering Senior Theses

The available literature on paper chromatography was surveyed. Special attention was given to those techniques dealing with the analysis of wood pulp hydrolyzates. Five hardwood pulp hydrolyzates were analyzed by paper chromatographic means. All hardwood pulp hydrolyzates analyzed tended to fall in a relatively narrow range of chemical composition. Glucose and xylose were found to be the main constituents with traces of mannose and galactose present in some pulp hydrolyzates.

Study Of Some Factors Which Influence Froth Flotation Of Deinked Stock, Peter C. Longjohn

Paper Engineering Senior Theses

Mineral and fiber were concurrently reclaimed from coated waste stock with the froth flotation process. Percentages of ash and fiber reclaimed are included along with the brightness of the deinked stock.

A suitable cooking formula and two flotation systems were discovered which respond favorably to froth flotation and yield a relatively high brightness before bleaching.

Printing Quality As Determined By The I.G.T. Tester, William A. Pritchett Jr.

Paper Engineering Senior Theses

Investigation of this method for the determination of printability indicates that it can be used to predict the printability of paper. However, since it lacks numerical rating, the visual evaluation depends finally upon the personal judgment of the investigator.

After Office Hours: A Visit With Dr. Jean Paul Pratt, Sam Gordon Berkow

Henry Ford Hospital Medical Journal

No abstract provided.

The Staphylococci, Joseph Paul Truant

Henry Ford Hospital Medical Journal

No abstract provided.

Cervical Incompetence, William C. Gilkey

Henry Ford Hospital Medical Journal

No abstract provided.

The Effect Of Maternal Hypoxia Upon Fetal Dental Enamel, William F. Via Jr., William K. Elwood, Jose Bebin

Henry Ford Hospital Medical Journal

No abstract provided.

Introduction Of New Staff Members

Henry Ford Hospital Medical Journal

No abstract provided.

International Symposium: The Biology Of Pyelonephritis

Henry Ford Hospital Medical Journal

No abstract provided.

Pharmacological Studies Of Antidiabetic Chinese Herbs, Mun Fa Lee

Loma Linda University Electronic Theses, Dissertations & Projects

Rehmannia glutinosa, Atractylus ovata, and Polygonatum chinense have all been employed by the Chinese as oral antidiabetic agents and reported by Min (1928), Kin (1931), and Li et al. (1936) to possess hypoglycemic activity. This prompted the pharmacological studies of these herbs.

Materials and methods. Their pharmacognosy was condensed from all available Chinese and scientific literature. Preliminary chemical and physical analyses included determinations for moisture, ash, crude fat, carbohydrates, protein, phosphorus, pH, alkaloids, melting point, and spectroscopy. Employing the Somogyi-Nelson method, their glycemic activity was studied in rats, rabbits, and dogs. Stress reactions were minimized. The effect …

Commencement Program 1959, College Of Medical Evangelists

Commencement Programs

CONTENTS

2 | The Academic Procession

3 | The Vesper Service

5 | The Sermon

7 | Conferring of Degrees

9 | The Testament of Freedom

10 | Candidates for Degrees

16 | Candidates for Certificates

17 | Awards

18 | Academic Costumes

19 | Class Officers

20 | To Make Man Whole - Merilyn R. Chace & Perry W. Beach

21 | Waymarks

The Development Of The Weberian Ossicles In Pantosteus Plebius, John Lawrence Butler

Biology ETDs

The Weberian apparatus, which was first described by Weber in 1820, is characteristic of the largest order of freshwater fishes, the Ostariophysi, a group that includes, forty-two families, among which are the minnows, suckers, siluroids, and characids. The apparatus of the family Catostomidae, the suckers, is one of the more complex because the anterior vertebrae are more highly modified than in most other groups. Although the suckers have a more complex form of apparatus, they have received comparatively little study, and this is the first developmental investigation of the Weberian ossicles of any catostomid.

Birdwatchers Give Reports On Travels During Summer, Jessie Maye Smith

Jessie Maye Smith Birds and Watchers Columns Collection

No abstract provided.

Viola Glabella Nutt., La Rea J. Dennis

Specimens by Name

No abstract provided.

Letter From W. T. Johnson To Teachers Of Vocational Agriculture, W. T. Johnson

Documents

Letter from W. T. Johnson to Teachers of Vocational Agriculture, outlining rules for NFA convention and camping.

The Distribution And Ecology Of The Hispid And Least Cotton Rat (Genus Sigmodon) In New Mexico, John S. Mohlhenrich

Biology ETDs

Two species of cotton rats, Sigmodon minimus Mearns (least cotton rat) and S. hispidus Baird (hispid cotton rat), occur in the Rio Grande Valley of New Mexico. The northernmost published record-station for S. hispidus is near Scorro, Scorro County ( Bailey, 1931: 167), and that S. minimus is near Isleta, Bernalillo County (Ivey, 1947: 498 and map). When recent field work by the author revealed the presence of both species in the Rio Grande Valley north of these published record-stations the problem arose whether the range extensions were the result of a recent northward extension of the range of the …

Hummingbirds Are Due Superlatives, Jessie Maye Smith

Jessie Maye Smith Birds and Watchers Columns Collection

No abstract provided.

Vitis Cordifolia Lam., Paul O. Schallert

Specimens by Name

No abstract provided.

Number Of Types Of Doves Found In U. S., Jessie Maye Smith

Jessie Maye Smith Birds and Watchers Columns Collection

No abstract provided.