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Forest Sciences

1996

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Meeting Minutes, December 10th, 1996, National Smokejumper Association Executive Committee Dec 1996

Meeting Minutes, December 10th, 1996, National Smokejumper Association Executive Committee

National Smokejumper Association Meeting Minutes

Agenda: Minutes approved; Financial report given by Lowell Hanson; Income taxes be paid on Jack's stipend; Tax deferred expenses; Membership; Reunion 2000; Life Memberships; Other:; Smokejumper Video; Orders of caps, cups, etc.; NSA's ad in the National Wildfire magazine; Jack's stipend; Computer; Certificates of Appreciation; E-mail hookup; Donation to RSVP; Meeting adjourned;


Liquid Agglomeration Of Ink Particles In Deinking, Timothy J. Bowen Dec 1996

Liquid Agglomeration Of Ink Particles In Deinking, Timothy J. Bowen

Paper Engineering Senior Theses

Liquid agglomeration is defined by references as a separation process (3). For the purpose of this thesis project, it is the process of using a hydrocarbon oil, dispersed in water, to a pulp slurry, to agglomerate the ink particles and then float them to the top. The idea behind this research is that the sludge produced will have a higher BTU value due to the hydrocarbon oil, which will make incineration a more feasible means of disposal. The preliminary work consisted of determining whether or not the ink particles would agglomerate with hexadecane. It was found that the ink particles …


Repulping Bottle Carriers, Mahsa Khosravani Dec 1996

Repulping Bottle Carriers, Mahsa Khosravani

Paper Engineering Senior Theses

Wet strength resins are used to enhance the strength of the paper in the presence of water and high humidity. Paper makers have a difficult time breaking down the wet strength resins which are used to aid in this process. The ideal situation would be to have high wet strength and still be able to brake it down easily. Unfortunately wet strength paper keeps its integrity because of the chemistry involved in its preparation. The chemistry that protects the structure of the high wet strength paper will also defend it in the pulper. The problem that causes the main concern …


Repulping Bottle Carriers, Jennifer A. Giver Dec 1996

Repulping Bottle Carriers, Jennifer A. Giver

Paper Engineering Senior Theses

The primary object of this thesis project was to repulp post consumer bottle carriers with the addition of chemical reagents and mechanical shear. Recycling bottle carriers is difficult to achieve due to the chemical additives that are added to the pulp. Chemical additives introduced to the virgin pulp are wet strength resins.

Post consumer bottle carriers used in this experiment contained Kymene 557, which is a wet strength product produced by Hercules incorporated and is difficult to repulp due to the cross-linking employed by this chemical additive. This experiment utilized both oxidizing and reducing chemical reagents such as hypochlorite and …


Electrokinetic Dewatering Of Softwood Furnishes, Aaron R. Redman Dec 1996

Electrokinetic Dewatering Of Softwood Furnishes, Aaron R. Redman

Paper Engineering Senior Theses

Enormous quantities of water are required in the preparation and formation of paper products. One of the most costly operations in paper manufacture is removal of excess water from the sheet and disposal of by-products from paper production. Currently, high steam energy is necessary in the drying process of paper manufacture. Disposal of a paper by-product, sludge, is also a rising concern due to environmental risks, shrinking landfill space, and rising disposal costs. Both production costs and disposal costs could be reduced with a more effective and efficient process to enhance water removal in paper production and sludge disposal.

One …


A Study Of The Effect Of Recycling On The Bonding Ability And Characteristics Of Fines, Lon E. Pschigoda Ii Dec 1996

A Study Of The Effect Of Recycling On The Bonding Ability And Characteristics Of Fines, Lon E. Pschigoda Ii

Paper Engineering Senior Theses

The recycled paper industry has seemingly grown faster than the technology to go along with it. It has become accepted that along with paper recycles comes a certain amount of strength loss, limiting the uses of secondary fiber. If the recycling industry is continued to grow an effective counter to this strength loss needs to be found. In order to counteract this strength loss the mechanism must first be better understood. The three mechanisms that will be focused on for this paper will be 1) The loss of fiber length, 2) Hornification, and 3) The decrease in surface bonding activity. …


Treating Recycled Papers With Naoh For Strength Improvement, Satoshi Suga Dec 1996

Treating Recycled Papers With Naoh For Strength Improvement, Satoshi Suga

Paper Engineering Senior Theses

Loss of strength is one of the worst aspects of recycled papers. Even though several factors are responsible for this phenomenon, loss of fiber swelling and inter fiber bonding are believed to be the main contributors. Therefore, prevention of loss in swelling and inter fiber bonding of recycled pup should result in the minimum strength loss of recycled papers.

Chemicals with hydroxyl group such as NaOH are known to provide superior swelling power to.pulp, and their swelling power might be utilized to minimize the strength loss of recycled paper.

In this study, batches of bleached kraft paper were repulped at …


The Effects Of Recycling On A Never-Dried Softwood Kraft Pulp Beaten To Different Initial Freeness Levels, Heath A. Smith Dec 1996

The Effects Of Recycling On A Never-Dried Softwood Kraft Pulp Beaten To Different Initial Freeness Levels, Heath A. Smith

Paper Engineering Senior Theses

The objective of this study is to compare two different pulps, a softwood kraft pulp with a groundwood pulp, to see if there is any difference in the behavior of their sheet properties as they are recycled. Neither pulp was dried before the experiment began. The pulps were each refined to three different freeness levels to determine the effect of initial freeness on recycled sheet properties. Tests for tear, tensile, zero-span tensile, opacity, brightness, scattering coefficient, absorption coefficient, and porosity were performed on the sheets in order to determine the effects of recycling on those sheet properties. A Kajaani fiber …


Improving Print Quality In Wallpaper By Pigment And Latex Substitution, Christopher L. Stratton Dec 1996

Improving Print Quality In Wallpaper By Pigment And Latex Substitution, Christopher L. Stratton

Paper Engineering Senior Theses

The coated paper industry is rapidly changing and improving. Because of increasing demands by consumers, high quality paper at the lowest possible price is at a premium. Because of this paper makers and coaters are continually looking for ways to improve their sheet without increasing cost.

This experiment was designed to test the role which pigment and latex has in influencing the final sheet quality. This was tested in two stages. The first stage examined pigment variations and the second latex variations. In the pigment variation trial, a number 1 high brightness clay was replaced by a structured clay pigment. …


Strength Properties Of Steam Exploded Laser Printed Papers, Dhamodharan Srinivasan Dec 1996

Strength Properties Of Steam Exploded Laser Printed Papers, Dhamodharan Srinivasan

Masters Theses

The mam objective of this study was to investigate the effect of steam explosion pulping on the strength properties of recycled fibers. The properties considered were zerospan tensile strength, tensile breaking length, tensile stretch, tensile energy absorption, scott bond and pentosan content. This study also examined the important operating parameters that affect the properties. Laser printed waste paper was pulped by the steam explosion process. The experiments were statistically modeled to cover the various process variables. Chemical addition, residence time, pressure, and dispersant level were varied during the steam explosion experiments. Chemical addition was kept at four levels and other …


Meeting Minutes, November 12th, 1996, National Smokejumper Association Executive Committee Nov 1996

Meeting Minutes, November 12th, 1996, National Smokejumper Association Executive Committee

National Smokejumper Association Meeting Minutes

Agenda: Minutes postponed until December meeting; Financial report; Membership; Newsletter; Smokejumper Video: Memorandum of Understanding with Media; Reunion 2000; Nomination of Board Members; Life Memberships; Certificates of Appreciation; NSA museum; Clerical help turnover; office reorganization;


Tb162: Red Maple And White Pine Litter Quality: Initial Changes With Decomposition, Mairin T. Delaney, Ivan J. Fernandez, Jeffrey A. Simmons, Russel D. Briggs Nov 1996

Tb162: Red Maple And White Pine Litter Quality: Initial Changes With Decomposition, Mairin T. Delaney, Ivan J. Fernandez, Jeffrey A. Simmons, Russel D. Briggs

Technical Bulletins

The specific objectives of this study were (a) to define the organic and inorganic composition of foliar litter from red maple (Acer rubrum L.) and white pine (Pinus strobus L.), and (b) to determine the shifts in the organic and inorganic composition of these two litter types during the initial stages of decomposition. These two species were chosen because of their prominence in the northeastern U.S. and the contrast they afforded in litter quality characteristics which have a strong influence on litter decomposition.


Project Report No. 50, Site Index Equations For Loblolly And Slash Pine Plantations In East Texas, Update: Fall 1996, Chris Bergt, Chris Edmonson, Jason Gibson, Robert Hactel, John Hamilton, Michael Hasagama, Justin Jordan, David Leary, Clif Motheral, Nathan Smith, Jason Wallace, Steven Wright Nov 1996

Project Report No. 50, Site Index Equations For Loblolly And Slash Pine Plantations In East Texas, Update: Fall 1996, Chris Bergt, Chris Edmonson, Jason Gibson, Robert Hactel, John Hamilton, Michael Hasagama, Justin Jordan, David Leary, Clif Motheral, Nathan Smith, Jason Wallace, Steven Wright

Informal Project Reports

Site index prediction equations for loblolly ( Pinus taeda L.) and slash ( Pinus elliottii Engelm. ) pine plantations in East Texas.


Project Report No. 46, Loblolly Pine Plantations In East Texas Two Harvest Schedules No Thinning & Final Harvest At 25 Years Thin At 10 Years & Final Harvest At 25 Years Sawlog/Veneer Wood Flow Comparison, A Simulation, J. David Lenhart, Jennifer Allen Nov 1996

Project Report No. 46, Loblolly Pine Plantations In East Texas Two Harvest Schedules No Thinning & Final Harvest At 25 Years Thin At 10 Years & Final Harvest At 25 Years Sawlog/Veneer Wood Flow Comparison, A Simulation, J. David Lenhart, Jennifer Allen

Informal Project Reports

DOES A THINNING AT 10 YEARS WITH FINAL HARVEST AT 25 YEARS INCREASE SAWLOG/VENEER 1000 FLOW? DOES A THINNING AT 10 YEARS WITH FINAL HARVEST AT 25 YEARS INCREASE NET PRESENT VALUE?


Project Report No. 49, Loblolly Pine Plantations In East Texas Two Harvest Schedules No Thinning, Final Harvest At 30 Years Thin At 20 Years, Final Harvest At 30 Years Sawlog/Veneer Wood Flow Comparison, A Simulation, J. David Lenhart, Jennifer Allen Nov 1996

Project Report No. 49, Loblolly Pine Plantations In East Texas Two Harvest Schedules No Thinning, Final Harvest At 30 Years Thin At 20 Years, Final Harvest At 30 Years Sawlog/Veneer Wood Flow Comparison, A Simulation, J. David Lenhart, Jennifer Allen

Informal Project Reports

A two-page spreadsheet was designed to represent the simulation model. In the spreadsheet, the user can easily conduct simulation runs. Runs that ascertain the effect of different combinations of biological and economical factors. Sensitivity of wood flow and net present value to plantation management attributes. A forester can use the spreadsheet to investigate specific combinations of factors. This spreadsheet is a versatile analytical tool for comparing management scenarios.


Project Report No. 48, Loblolly Pine Plantations In East Texas Two Harvest Schedules No Thinning & Final Harvest At 30 Years, Thin At 15 Years & Final Harvest At 30 Years, Sawlog/Veneer Wood Flow Comparison, A Simulation, J. David Lenhart, Jennifer Allen Nov 1996

Project Report No. 48, Loblolly Pine Plantations In East Texas Two Harvest Schedules No Thinning & Final Harvest At 30 Years, Thin At 15 Years & Final Harvest At 30 Years, Sawlog/Veneer Wood Flow Comparison, A Simulation, J. David Lenhart, Jennifer Allen

Informal Project Reports

DOES A THINNING AT 15 YEARS WITH FINAL HARVEST AT 30 YEARS INCREASE SAWLOG/VENEER WOOD FLOW? DOES A THINNING AT 15 YEARS WITH FINAL HARVEST AT 30 YEARS INCREASE NET PRESENT VALUE?


Project Report No. 47, Loblolly Pine Plantations In East Texas Two Harvest Schedules, No Thinning, Final Harvest At 25 Years Thin At 15 Years Final Harvest At 25 Years Sawlog/Veneer Wood Flow Comparison, A Simulation, J. David Lenhart, Jennifer Allen Nov 1996

Project Report No. 47, Loblolly Pine Plantations In East Texas Two Harvest Schedules, No Thinning, Final Harvest At 25 Years Thin At 15 Years Final Harvest At 25 Years Sawlog/Veneer Wood Flow Comparison, A Simulation, J. David Lenhart, Jennifer Allen

Informal Project Reports

DOES A THINNING AT IS YEARS WITH FINAL HARVEST AT 25 YEARS INCREASE SAWLOG/VENEER WOOD FLOW? DOES A THINNING AT IS YEARS WITH FINAL HARVEST AT 25 YEARS INCREASE NET PRESENT VALUE?


Notes On The Milliped Pleuroloma Flavipes (Polydesmida: Xystodesmidae) In Wisconsin, Dreux J. Watermolen, G Andrew Larsen Oct 1996

Notes On The Milliped Pleuroloma Flavipes (Polydesmida: Xystodesmidae) In Wisconsin, Dreux J. Watermolen, G Andrew Larsen

Field Station Bulletins

The milliped Pleuroloma flavipes Rafinesque 1820 is one of the more widespread and better known North American millipeds. During the course of recent studies in Wisconsin, we have had opportunities to examine museum specimens and make field observations of this species. In this note, we report new locality records, discuss observations of mass aggregations, describe a color variation, and illustrate an individual with developmental abnormalities.


The Centipede Lithobius Celer (Chilopoda: Lithobiidae) In Wisconsin, Dreux J. Watermolen Oct 1996

The Centipede Lithobius Celer (Chilopoda: Lithobiidae) In Wisconsin, Dreux J. Watermolen

Field Station Bulletins

The centipede Lithobius celer Bollman 1888 has been reported from Wisconsin only one time. Chamberlin (1911) provisionally referred specimens collected from unspecified Wisconsin and Michigan localities to this species, with considerable doubt since neither was a ''fully-grown male/' Subsequent investigators (e.g., Matthews 1935, Crabill 1958) did not report L. celer from the state. While examining specimens collected as part of an on-going prairie ecology study, I discovered a L. celer specimen from southern Wisconsin. The specimen was collected in a pitfall trap at Hawkhill Prairie, Dane County (T9N, R8E, Sec. 5) on 21 August 1986 by A. Lisken.


Comparison Of Wisconsin Terrestrial Isopods And Their Life Cycle Traits, Joan Jass, Barbara Klausmeier Oct 1996

Comparison Of Wisconsin Terrestrial Isopods And Their Life Cycle Traits, Joan Jass, Barbara Klausmeier

Field Station Bulletins

Seasonal reproductive patterns for the 11 terrestrial isopod species found in Wisconsin are presented. The pattern of the most widespread species, Trachelipus rathkei, is examined hi detail through a series of paired north/south samplings which reveal a seasonal lag in the percent of females which were gravid in populations from the northern part of the state. A difference in sex ratio between north and south samples is reported.


Spirit Resting Places: A Nature Reader, Martin T. Thompson Sep 1996

Spirit Resting Places: A Nature Reader, Martin T. Thompson

MALS Final Projects, 1995-2019

When not involved in the matters of earning a living by teaching, I tramp the woods and fields to hunt or fish, or just to saunter through nature's mysterious beauty, and I read and write. That my writings embody reflections on my observations of the natural world is an extension of the self-discovery quest I have taken up. The pieces in this collection are mottled leafy pattern pieces that attempt to help me make sense of a life that began in rural Upstate New York. I was born and raised in the snow-belt region of Tug Hill, 15 miles east …


What Can We Learn From Past Reform Efforts, R. Max Peterson Sep 1996

What Can We Learn From Past Reform Efforts, R. Max Peterson

The National Forest Management Act in a Changing Society, 1976-1996: How Well Has It Worked in the Past 20 Years?: Will It Work in the 21st Century? (September 16-18)

7 pages.

Contains footnotes and references.


The Need For A New Nfma Planning Rule, Jack Ward Thomas Sep 1996

The Need For A New Nfma Planning Rule, Jack Ward Thomas

The National Forest Management Act in a Changing Society, 1976-1996: How Well Has It Worked in the Past 20 Years?: Will It Work in the 21st Century? (September 16-18)

7 pages.


Global Trends And The Future Of National Forests, Nels C. Johnson Sep 1996

Global Trends And The Future Of National Forests, Nels C. Johnson

The National Forest Management Act in a Changing Society, 1976-1996: How Well Has It Worked in the Past 20 Years?: Will It Work in the 21st Century? (September 16-18)

23 pages.

Contains 3 pages of references.


Forest Planning On The National Forests Under Ecosystem Management, John Sessions, K. Norman Johnson Sep 1996

Forest Planning On The National Forests Under Ecosystem Management, John Sessions, K. Norman Johnson

The National Forest Management Act in a Changing Society, 1976-1996: How Well Has It Worked in the Past 20 Years?: Will It Work in the 21st Century? (September 16-18)

17 pages.

Contains 2 pages of references.


Can Managers Adapt To New Relationships And Roles Under Nfma?, Elizabeth Estill Sep 1996

Can Managers Adapt To New Relationships And Roles Under Nfma?, Elizabeth Estill

The National Forest Management Act in a Changing Society, 1976-1996: How Well Has It Worked in the Past 20 Years?: Will It Work in the 21st Century? (September 16-18)

5 pages.


Nfma Implementation Options: Managing Environmental Decisions [Outline], Susan Yonts-Shepard Sep 1996

Nfma Implementation Options: Managing Environmental Decisions [Outline], Susan Yonts-Shepard

The National Forest Management Act in a Changing Society, 1976-1996: How Well Has It Worked in the Past 20 Years?: Will It Work in the 21st Century? (September 16-18)

3 pages.


Rural Communities In An Urban Society And Global Economy, Michael Preston Sep 1996

Rural Communities In An Urban Society And Global Economy, Michael Preston

The National Forest Management Act in a Changing Society, 1976-1996: How Well Has It Worked in the Past 20 Years?: Will It Work in the 21st Century? (September 16-18)

8 pages.


Bringing The Aquatic Sciences Into Nfma Framework: Will They Fit?, James Sedell, Kelly Burnett Sep 1996

Bringing The Aquatic Sciences Into Nfma Framework: Will They Fit?, James Sedell, Kelly Burnett

The National Forest Management Act in a Changing Society, 1976-1996: How Well Has It Worked in the Past 20 Years?: Will It Work in the 21st Century? (September 16-18)

21 pages.

Contains 3 pages of references.


Reflections From The Seventh American Forest Congress: Some Thoughts For National Forest Management, William R. Bentley Sep 1996

Reflections From The Seventh American Forest Congress: Some Thoughts For National Forest Management, William R. Bentley

The National Forest Management Act in a Changing Society, 1976-1996: How Well Has It Worked in the Past 20 Years?: Will It Work in the 21st Century? (September 16-18)

21 pages.

Contains endnotes and references.