Life Sciences Commons^™

Fire Weather : A Guide For Application Of Meteorological Information To Forest Fire Control Operations, Mark J. Schroeder, Charles C. Buck

The Bark Beetles, Fuels, and Fire Bibliography

Weather is never static. It is always dynamic. Its interpretation is an art. The art of applying complex information about weather to the equally complex task of wildland fire control cannot be acquired easily-especially not by the mere reading of a book. The environment is in control in wildland firefighting. Free-burning fires are literally nourished by weather elements, atmospheric components, and atmospheric motion. Outguessing mother nature in order to win control is an extremely difficult task. We need to soothe her with understanding. We have attempted to present information in such a way that your daily and seasonal awareness of …

Production Of Aggregating Pheromones In Re-Emerged Parent Females Of The Southern Pine Beetle, Jack E. Coster

Faculty Publications

No abstract provided.

Supplying Wood Products For More People - A Challenge To The Forest Industry, John A. Segur, F. Bruce Lamb, Basil E. Allen

Yale School of the Environment Bulletin Series

No abstract provided.

Stem Canker Disease Of Red Flowering Gums, W P. Cass Smith

Journal of the Department of Agriculture, Western Australia, Series 4

Of the many native Eucalypts in Western Australia few are more attractive than the red flowering gum.

It flowers generally during the Christmas period and provides a beautiful display for several weeks, with blossoms of several colours including dark red, scarlet, orange and pink.

Effects Of Phenylmercuric Acetate On The Transpiration And Physiology Of Quaking Aspen, Kenneth O. Higginbotham

Aspen Bibliography

No abstract provided.

Foliar Penetration Of Picloram And 2,4-D In Aspen And Balsam Poplar, M.P. Sharma, W.H. Vanden Born

Aspen Bibliography

Added surfactant (Atlox 210) at 1% (v/v) and high relative humidity enhanced the penetration of both 4-amino-3,5,6-trichloropicolinic acid (picloram) and (2,4-dichlorophenoxy)acetic acid (2,4-D0 into detached leaves of aspen poplar (Populus tremuloides Michx.).

Relation Of Canopy Area And Volume To Production Of Three Woody Species, James M. Peek

Aspen Bibliography

No abstract provided.

Natural Regeneration Of White Spruce Under Spruce-Aspen Shelterwood, B-18a Forest Section, Alberta, J.C. Lees

Aspen Bibliography

No abstract provided.

Techniques For Rooting Aspen Root Sprouts, Miles K. Benson, Delmar E. Schwalbach

Aspen Bibliography

The Aspen Genetics and Tree Improvement program of the Institute of Paper Chemistry (IPC) has had the problem of vegetatively propagating selected and improved individuals of various Populus species and hybrids for a number of years.

Effect Of Cycloheximide On Hypoxylon Cankers On Aspen, D.H. Brown, S.B. Silberborg

Aspen Bibliography

Direct applications of cycloheximide in fuel oil to Hypoxylon cankers on aspen arrested canker activity and enlargement for 5 years. Tree survival increased with increased concentrations of cycloheximide.

Some Effects Of Prescribed Burning On Jack Pine Reproduction In Northeastern Minnesota, C.E. Ahlgren

Aspen Bibliography

Prescribed burning has been used for a number of years in the management of jack pine (Pinus Banksiana Lamb.) lands in the United States and Canada.

Natural Regeneration Of White Spruce Under Spruce-Aspen Shelterwood, B-18a Forest Section, Alberta, J. C. Lees

Aspen Bibliography

No abstract provided.

Man And His Environment: The Ecological Limits Of Optimism, R. S. Miller, G. M. Woodwell, W. R. Burch, P. A. Jordan, R. L. Means

Yale School of the Environment Bulletin Series

No abstract provided.

Natural Variation In Susceptibility Of Pinus To Neodiprion Sawflies As A Basis For The Development Of A Breeding Scheme For Resistant Trees, Walter R. Henson, Louis C. O'Neil, Francois Mergen

Yale School of the Environment Bulletin Series

No abstract provided.

Chemical Analyses Of Plant Tissues From The Hubbard Brook Ecosystem In New Hampshire, Gene E. Likens, F. Herbert Bormann

Yale School of the Environment Bulletin Series

No abstract provided.

Strength Properties Of Secondary Fibers Repulped Under Various Conditions, David J. Deyoung

Paper Engineering Senior Theses

The inability of fibers to swell to their original extent is probably the largest single factor contributing to strength losses of repulped fibers. This lack of swelling lessens the number and strength of fiber to fiber bonds in the sheet formed. It is this fact which leads to the decreased mullen, tensile and stretch of the sheet, and the increased tearing resistance. This paper is a study of the effects of temperature, pH and surfactants on the strength properties of secondary fibers. It was shown that a surfactant is very detrimental to strength properties. While not affecting some strength properties, …

Lipid Content And Seasonal Activity Of Odontopus Calceatus (Coleoptera: Curculionidae) Adults, E. A. Heinrichs

Department of Entomology: Faculty Publications

Overwintering Odontopus calceatus (Say) adults were first observed feeding on April 10. Weekly collections during the activity period indicated that new-generation adults began emerging June 4. By July 23 they had entered the forest litter for hibernation. Lipid content decreased throughout the hibernation period as the weevils utilized 77% of their total lipid content during this time. The most rapid decrease during hibernation occurred from February to March, just prior to mating and oviposition in the spring. No increase in lipid content occurred during the activity period in spring and summer. A great increase in lipid content did occur within …

Forestry Bulletin No. 18: Geography Of The Southern Forest Region, Laurence C. Walker, G. Loyd Collier

Forestry Bulletins No. 1-25, 1957-1972

"The Southern Forest Region, as here discussed, comprises the area east of the Texas and Oklahoma prairies and south of the Missouri, Ohio, and Potomac rivers, plus an extension along the Atlantic coast to central New Jersey."

Tourist Spending Patterns In Utah, Perry J. Brown

Forest Management Faculty Publications

No abstract provided.

Analysis Of Long-Term Streamflow Patterns On Two Davis County Experimental Watersheds In Utah, Stephen P. Glasser

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The influence of aspect on water yield variability over a long period, 1936-1964, was studied at two small, mountainous watersheds within the Davis County Experimental Watershed near Farmington, Utah.

North-facing Miller Creek is densely vegetated by a conifer-aspen forest and mountain brush. Miller Creek's yield was more variable for daily, monthly, seasonal, and annual flows than yields from south-west facing Halfway Creek which is covered by mountain brush. Differences between watersheds in annual yield and snowmelt season runoff were nonsignificant.

The snowmelt runoff season extended for an average of 65 days on both watersheds, but it began 24 days earlier …

The Contribution Of Summer Tourism To The Utah Economy, William D. Brakel

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The increase in household income attributed to expenditures by Utah motor vehicle tourists from June 15 to September 5, 1969, was estimated using income multipliers from input-output analysis. Tourist expenditures were gathered through the distribution of postage-paid diaries to non-residents entering Utah. Expenditures were also segregated for Cache County, Utah. The income multipliers from state and county input-output models were used to estimate the impact of applying the state model to county data.

Approximately 927,250 tourist parties to Utah spent an estimated $37,842,816, increasing household income $65,018,557. Likewise, approximately 67,709 tourist parties spent an estimated $798,966 in Cache County. The …

Forestry Bulletin No. 17: Films And Filmstrips On Forestry, Nelson T. Samson

Forestry Bulletins No. 1-25, 1957-1972

"Motion picture films and filmstrips in forestry and related fields are available from many sources in America. This publication is an attempt to provide for foresters and others interested in such aids a convenient means for selecting materials to meet their particular needs."

Influence Of Magnitude Of Printing Ink And Printing Pressure On Printing Quality, C. Lee Brandyberry

Paper Engineering Senior Theses

The purpose of this thesis is to investigate the influence of the magnitude of printing ink and printing pressure on the printing quality of various grades of paper with the ultimate objective of obtaining a standard press setting at which a wide range of papers may be run to determine printing quality. The procedure consisted of printing at various impressions with two different amounts of ink on each grade of paper, measuring the printed samples for ink coverage and printing fidelity to calculate printing quality, and finally, comparing these results to the inherent paper properties. The conclusions drawn show that …

Deinking And Bleaching Of Waste Paper In One Stage, Suleiman Yusuf Dadabhoy

Paper Engineering Senior Theses

The scope of this project was to explore the possibility of deinking and bleaching of wastepaper in one stage.

All the experiments were run under the same conditions and using the same equipment.

From the results obtained, it is concluded that it is possible to deink and bleach in one stage. It was found that deinking and bleaching of groundwood paper at the same time, shows more improvement than paper with less groundwood in it.

When paper is deinked and bleached at the same time, the consumption of chemicals is little more, but on the other hand, one could make …

Pressurized Oxygen-Hot Alkali Pulping System, Robert A. Dinehart

Paper Engineering Senior Theses

This study concerns the area of pulping, using an oxygen-hot caustic-magnesium carbonate system. The literature study includes the use of a similar system by French scientists in the bleaching of pulps. The few who have worked in the pulping field using oxygen are also cited, but apparently no one has investigated an oxygen-hot caustic-magnesium carbonate pulping system.

In this study, red pine chips have been treated under varying conditions of oxygen pressure and magnesium carbonate concentrations and tested for brightness, yield, permangenate number, mullen and tensile strength. It was found that the oxygen-caustic pulping system had no advantages over the …

The Influence Of Coating Adhesives On The Stiffness Of Paper, Chinu S. Dalal

Paper Engineering Senior Theses

The main purpose of this project was to study the effect coating adhesive has on the stiffness of paper. This work enables one to compare data on what influence adhesive with and without supercalendering has on the stiffness and caliper of the paper. The project was performed with six formulations with a different adhesive or adhesive combination in each. The adhesives were six types, casein, protein, starch, casein + latex, protein + latex and starch + latex.

It has been found in general that stiffness of all the paper samples increased when coating adhesive was applied on the surface. The …

The Use Of The Streaming Current Detector For Determining Dye Adsorption Characteristics Of Papermaking Fibers, Thomas Meersman

Paper Engineering Senior Theses

The purpose of this thesis was to study the dye adsorption characteristics of cellulose by means of the Streaming Current Detector. The influence of electrolytes on dye adsorption, and the electrokinetic phenomena of two-sided dyeing were areas of particular concentration.

Contrary to general belief, it was found the addition of sodium chloride was not necessarily beneficial to dye adsorption and in some cases it could actually be detrimental. The Streaming Current Detector was found to be a useful tool for predicting this effect.

The higher charge of fines was found to be an important factor in the increased dye adsorption …

The Schulze-Hardy Law And The Hofmeister Series Of Ions In Coagulations Of Starch-Titanium Dioxide White Water, Thomas R. O'Hara

Paper Engineering Senior Theses

In recent years the problem of pollution has gained more importance in the pulp and paper industries due to the pressures applied by the State and Federal Governments. One of the areas in which the industry has been weak is the coagulation of starch-titanium white water. The problem is largely due to the stabilizing power of the modified starches used in the industry today. These starches peptize the pigment which is present in the white water and form a highly stable colloidal system.

The coagulating rules set down in the Schulze-Hardy Law and the Hofmeister Series state that the higher …

The Effects Of Stress During Drying Upon Physical Characteristics, Keith R. Stanley

Paper Engineering Senior Theses

The purpose of this study was to determine the effects of stress during drying upon the strength of the paper.

This study consisted of two machine runs on a pilot paper machine. The machine was operated with minimum tension in all draws to provide a standard condition. For experimental conditions, tension was applied at various draws and increased until the sheet broke. Samples were taken from the standard condition sets and from-all experimental sets for evaluation purposes. The samples were evaluated for machine and cross-machine direction elongation, machine and cross-machine direction tensile, mullen, and machine and cross-machine direction tensile energy …

The Effects Of Ph On Alkaline Sizing Of Bleached Hardwood Pulps With Aquapel, David K. Dekam

Paper Engineering Senior Theses

The effects of pH on alkaline sizing of two bleached hardwood pulps, kraft and sulfite, was investigated. The pulps were refined in a Noble and Wood cycle beater and handsheets were made with a Noble and Wood handsheet making system. The handsheets were internally sized with 0.15 percent Aquapel using 0.05 percent Kymene 557 as a retention aid. Upon varying the pH of sizing of bleached hardwood sulfite pulp the Hercules Ink Photometer measurements of 258, 636, and 563 seconds were observed at pH's of 7.0, 8.5, and 9.5 respectively. The sizing increased with pH up to a certain pH …