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Polysomes From Mesophilic And Thermophilic Bacteria, Philip Y. Shen
Polysomes From Mesophilic And Thermophilic Bacteria, Philip Y. Shen
Dissertations
No abstract provided.
N-Methyl-N’-Nitro-N-Nitrosoguanidine Induced Dominant And Recessive Mutations In Zea Mays, Frank Charles Janca
N-Methyl-N’-Nitro-N-Nitrosoguanidine Induced Dominant And Recessive Mutations In Zea Mays, Frank Charles Janca
Masters Theses
No abstract provided.
The Organ-Specific Mammalian Host-Mediated Microbial Mutagen Assay (Oshma), Roger D. Beyer
The Organ-Specific Mammalian Host-Mediated Microbial Mutagen Assay (Oshma), Roger D. Beyer
Masters Theses
No abstract provided.
The Recovery Of Portage Creek In Vicksburg, Michigan, Michael Henry Herbert
The Recovery Of Portage Creek In Vicksburg, Michigan, Michael Henry Herbert
Masters Theses
No abstract provided.
The Fidelity Of Dna Polymerase From Bacillus Licheniformis And Bacillus Stearothermophilus, Gerald R. Mcgowan
The Fidelity Of Dna Polymerase From Bacillus Licheniformis And Bacillus Stearothermophilus, Gerald R. Mcgowan
Masters Theses
No abstract provided.
An Investigation Of The Froth Flotation Process As A Means Of Concentrating Pulp And Paper Mill Sludge, Merwin Lee Miller
An Investigation Of The Froth Flotation Process As A Means Of Concentrating Pulp And Paper Mill Sludge, Merwin Lee Miller
Masters Theses
No abstract provided.
The Effects Of Relative Humidity And Temperature On The Strength Properties Of Corrugated Board, James E. Mcfarland
The Effects Of Relative Humidity And Temperature On The Strength Properties Of Corrugated Board, James E. Mcfarland
Paper Engineering Senior Theses
The objective of this thesis was the determination of the effect of temperature and relative humidity on the strength properties of corrugated board.
A testing laboratory was set up in a controlled humidity room. Both temperatures and humidities were varied to form testing levels. The temperatures ranged from 32°F to 92°F. The humidity varied from 25% to 75%. Extreme conditions in either direction were not used so as to avoid damage to the room and testing equipment. Three tests were performed on the exposed board. They were H & D flat crush test, G.E. puncture test, and the mullen test. …
The Effect Of Ph On Retention Aids: A Study Of Retention, Optical Efficiency And Filler Distribution, David H. Soule
The Effect Of Ph On Retention Aids: A Study Of Retention, Optical Efficiency And Filler Distribution, David H. Soule
Paper Engineering Senior Theses
This paper was designed to develop insights on the retaining, optical efficiency and filler distribution properties of retention aids at various pH levels. Three leading retention aids; Cato 15, Natron 86 and Nalco 623 were studied in the normal papermaking pH range 3.5 to 6.5 to determine the effect of pH.
The results indicated pH played an important role in producing conditions of optimum retention and optical efficiency. pH also contributed to the distribution of the filler in the handsheets. The results further indicated, when using retention aids, optimum retention of titanium dioxide does not always yield the highest scattering …
Effects Of Some Commercial Enzymes In The Deinking Of Newsprint, James O. Prickett
Effects Of Some Commercial Enzymes In The Deinking Of Newsprint, James O. Prickett
Paper Engineering Senior Theses
The trend of industry, in general, today is one of recycling. This is brought about as a means of conserving our dwindling natural resources and to help abate the pollution problem.
The design of this paper is to see if enzymes can be used successfully and economically in the deinking process of newsprint. Varying concentrations of enzymes, both an amylase and a protease, and a biodegradable detergent were used in a handsheet study. Temperature and pH were controlled so as to not denature the enzymes. It was found that the brightness increase was only minimal with a protease and brightness …
A Study Of The Blocking Of Polyvinylidene Chloride In A Rewound Roll, Lowell L. Knapp
A Study Of The Blocking Of Polyvinylidene Chloride In A Rewound Roll, Lowell L. Knapp
Paper Engineering Senior Theses
The blocking tendency of polyvinylidene chloride (PVDC) coated paper, front to back, in a rewound roll against a clay-coated surface was investigated. Pressure, temperature, contact time, relative humidity, and thickness of the PVDC layer or layers were all found to be important in the blocking of PVDC coated paper. Autohesion was considered to be the most probable mechanism of blocking. Autohesion involves the interweaving of the polymer molecules of both coated surfaces when they are in contact and under pressure at high temperatures. One way of eliminating blocking is by completely drying (crystallizing) the PVDC film and thereby reducing the …
Experimental Production Of Duodenal Ulcers In Rats With Corresponding Changes In Gastric Secretory Patterns, James Ellis Dale
Experimental Production Of Duodenal Ulcers In Rats With Corresponding Changes In Gastric Secretory Patterns, James Ellis Dale
Masters Theses
No abstract provided.
A Study Of The Vegetation On Three Sanitary Landfills In Kalamazoo County, John Warren Rogers
A Study Of The Vegetation On Three Sanitary Landfills In Kalamazoo County, John Warren Rogers
Masters Theses
No abstract provided.
Effects Of Phosphodiesterase Inhibitors On The Activity Of Rat Myocardial Adenyl Cyclase, Garry Lee Degraaf
Effects Of Phosphodiesterase Inhibitors On The Activity Of Rat Myocardial Adenyl Cyclase, Garry Lee Degraaf
Masters Theses
No abstract provided.
Interspecific Association Among The Common Birds Of Oak-Hickory Stands In Southwestern Michigan, Michaline Slomka
Interspecific Association Among The Common Birds Of Oak-Hickory Stands In Southwestern Michigan, Michaline Slomka
Masters Theses
No abstract provided.
Immunochemical Studies Of Ribosomes From Mesophilic And Thermophilic Bacteria, Thomas L. Snyder
Immunochemical Studies Of Ribosomes From Mesophilic And Thermophilic Bacteria, Thomas L. Snyder
Masters Theses
No abstract provided.
Phospholipid And Fatty Acid Analysis Of The Membrane Of Acetobacter Aceti Var. Liquefaciens, Cathie S. W. Kuoh
Phospholipid And Fatty Acid Analysis Of The Membrane Of Acetobacter Aceti Var. Liquefaciens, Cathie S. W. Kuoh
Masters Theses
No abstract provided.
Spectral Analysis Of Olfactory System Electrical Activity: Effects Of Ketamine And Sodium Pentobarbital, John Ludwig Orr
Spectral Analysis Of Olfactory System Electrical Activity: Effects Of Ketamine And Sodium Pentobarbital, John Ludwig Orr
Masters Theses
No abstract provided.
Total Free Pulping Of Aspen Chips By The Nssc Process For Use In Corrugating Medium, John C. Krc
Total Free Pulping Of Aspen Chips By The Nssc Process For Use In Corrugating Medium, John C. Krc
Paper Engineering Senior Theses
The recent trend of industry toward materials cost savings and environmental control encourages research in the area of total-tree utilization. One possible way to utilize the whole tree is by harvesting with the Metro Chip Harvester. The development of the Metro Chip Harvester prompted this work which primarily was concerned with comparison of various blends of standard Aspen chips and Metro Harvester Aspen chips. One possible use for Metro Harvester chips in the production of corrugating medium.
The results of this work indicate that there is a possibility that 25% Metro Harvester chips can be used in a corrugating medium …
The Evaluation Of The Banana Tree As A Source Of Papermaking Fiber, Ivan T. Mascarenhas
The Evaluation Of The Banana Tree As A Source Of Papermaking Fiber, Ivan T. Mascarenhas
Paper Engineering Senior Theses
This investigation is conducted under found broad categories - effect of various cooking methods, blending with softwood, CEHD bleaching and fiber microscopy.
It is found that the leaves are unpulpable but the stalks and stems give fibers comparable to hardwoods.
Banana pulps are uneconomical to bleach due to high Kappa numbers and acid pretreatment requirement.
The individual fibers are long, slender and stiff similar to bamboo and rice fibers. Peculiar hairlike structure are dominant.
Banana pulp can be substituted for hardwood pulp in the manufacture of bags and wrapping paper and especially advantageous for liner board due to its high …
Fiber Orientation As A Means To Control Formation On The Ultra-Former Through Changes In The Spouting Jet To Wire Speed Ratio And Stock Consistency In The Headbox, Gerald R. Haw
Paper Engineering Senior Theses
The Ultra-Former is a new type of multi-ply board machine. It uses a cylinder mold without a vat and has a stock delivery system that uses a headbox similar to that found on a fourdrinier machine. The board made on the Ultra-Former has several improved qualities over the board made on the conventional type board machines. Of these several improved qualities formation is one of the most important.
Formation is important because it affects the physical properties of the finished product. One of the major physical properties affected is the tensile strength of the sheet. The tensile strength is reduced …
The Effect Of Temperature On Refining, Richard Granger
The Effect Of Temperature On Refining, Richard Granger
Paper Engineering Senior Theses
The results of this work indicate that elevated beating temperature drastically increases beating time and produces detrimental effects on the physical characteristics of the formed sheet as evaluated by wet web strength, tear and tensile.
It is thus indicative of the value of cold temperature refining.
The Pulping Of Hardwood Sawdust By The Neutral Sulfite Semichemical Process For Use In Corrugating Medium, James O. Mcclelland
The Pulping Of Hardwood Sawdust By The Neutral Sulfite Semichemical Process For Use In Corrugating Medium, James O. Mcclelland
Paper Engineering Senior Theses
The need for using less expensive raw materials is ever increasing. Here the use of hardwood sawdust as one of these raw materials was investigated for use in Semichemical Corrugating Medium. It was found that 20 to 30% sawdust could be used in the furnish without a significant loss in sheet strength. It was also found that sawdust could be pulped either separately or combined with hardwood chips giving the same product quality. This was accomplished by either a regular neutral sulfite semichemical cook or by a vapor phase cook. The conventional disk refiner was found to do the best …
The Effects Of Starch On Pickup, As Influenced By Solids, Temperature, Viscosity And Depth Of Penetration On Sheet Properties, James W. Ramp
The Effects Of Starch On Pickup, As Influenced By Solids, Temperature, Viscosity And Depth Of Penetration On Sheet Properties, James W. Ramp
Paper Engineering Senior Theses
This reporting is a review of the current issue of knowledge in the area of size press variables. It delves into the sheet properties affected by the application of surface size.
A pilot plant study was conducted which evaluated the affect of Penford Gum 280. This starch was applied to the 46 pound 50% hardwood, 50% softwood, 15% clay filled sheet being formed on the 30 inch wide pilot papermachine at Western Michigan University. Starch application was made at various temperature and solids concentrations to obtain different amounts of pickup and variables deaths of penetration.
The results of this study …
Purification And Properties Of Phenylalanine Transfer Rna From Bacillus Licheniformis And Bacillus Stearothermophilus, Cynthia R.Y. Yang
Purification And Properties Of Phenylalanine Transfer Rna From Bacillus Licheniformis And Bacillus Stearothermophilus, Cynthia R.Y. Yang
Dissertations
No abstract provided.
A Study Of The Effects Of Vacancies On The Angular Correlation Of Positron Annihilation Radiation For Iron And Copper, Ronald L. Meade
A Study Of The Effects Of Vacancies On The Angular Correlation Of Positron Annihilation Radiation For Iron And Copper, Ronald L. Meade
Masters Theses
No abstract provided.
Captan-Induced Reversions In Bacteria, Gayle M. Nii Lopiccolo
Captan-Induced Reversions In Bacteria, Gayle M. Nii Lopiccolo
Masters Theses
No abstract provided.
An Electron Microscopical Study Of The Ultrastructure And Classification Hemocyte Of The Grasshopper, Melanoplus Differentials (Thomas) (Orthoptera: Acrididae), Andrejs Liepins
Masters Theses
The hemocytes of the fifth instar nymphs of the grasshopper Melanoplus differentialis (Thomas) (Orthoptera: Acrididae) have been the subject of this study. The hemocytes of this insect, based on the fine structures of its cells, have been found to fall into four main categories or groups: Nucleocytes, Plasmatocytes, Granulocytes and Coagulocytes. The bases for their classification are differences in the ultrastructure of the cytoplasmic organelles as well as cytoplasmic inclusions are revealed as revealed by electron microscopy.
Membrane Bound Nadh Oxidase Complex Of Micrococcus Lysodeikticus, Karen Ju-Kuang Hsia
Membrane Bound Nadh Oxidase Complex Of Micrococcus Lysodeikticus, Karen Ju-Kuang Hsia
Masters Theses
No abstract provided.
A Comparative Consideration Of Lipoprotein Distribution And Stress Response In The Mallard Duck And Man, Janice Mackay
A Comparative Consideration Of Lipoprotein Distribution And Stress Response In The Mallard Duck And Man, Janice Mackay
Honors Theses
Lipid is associated with all of the major serum protein fractions of both the mallard duck and man. however, whereas the ρ lipoproteins predominate in man with little lipo-albumin evident, according to available literature, in ducks the lipo-albumin constitutes more than half of the serum lipoproteins, and a substantial lipo-prealbumin fraction is evident. Most studies of lipo-proteins are carried out on human serum primarily for the purpose of diagnosis of abnormalities. The stress response in many animals includes a rise in serum α-globulin levels, but its physiological basis is still speculative. While a consideration of the changes in lipoprotein distribution …
The Effects Of Moist-Heat Treatments And Stratification On Germination Of Prairie Plant Seeds, John E. Stuurwold
The Effects Of Moist-Heat Treatments And Stratification On Germination Of Prairie Plant Seeds, John E. Stuurwold
Honors Theses
Germination of Silphium terebinthenaceum was enhanced by a post-stratification most-heat treatment at 80°C. Tested seeds of four other perennial herbs common to midwestern prairies (Andropogon scoparius, Sorghastrum nutans, Eryngium yuccifolium, and Solidago rigida) showed little adverse or beneficial effects of the heat treatment. Heat treatments alone had little effect on the seeds; the length of stratification periods necessary to effect maximal germination varied. The significance of these findings is examined in the light of related literature on grassland fire ecology.