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Wetting behaviors of phenol- and urea-formaldehyde resins as compatiblizers

Understanding wetting behavior and surface coverage of resins on a wood surface is important to obtain satisfactory adhesion and optimize adhesive application for wood composite manufacturing. Sessile and micro-droplets of urea- and phenol-formaldehyde (UF and PF) resins were generated on wood surfaces to observe wetting behaviors using three directional image...

https://www.fs.usda.gov/treesearch/search?keywords=%22Generations%22&%3Bf%5B0%5D=year%3A%222019%22&f%5B0%5D=author_facet%3A%22Hse%2C%20Chung-Yun%22&f%5B1%5D=author_facet%3A%22Fryer%2C%20Janet%22&f%5B2%5D=author_facet%3A%22Graham%2C%20Russell%22&f%5B3%5D=author_facet%3A%22Haan%2C%20Tara%22&f%5B4%5D=author_facet%3A%22Palik%2C%20Brian%22&f%5B5%5D=author_facet%3A%22Coffin%2C%20Alisa%22&f%5B6%5D=author_facet%3A%22Strunk%2C%20Jacob%22

Author(s):

Sangyeob Lee; Todd F. Shupe; Leslie H. Groom; Chung Y. Hse

Year:

2006

Keywords:

Wetting, sessile, micro-droplet, thermosets, droplet shape factors (DSF), atomic force microscopy (AFM)

Source:

Wood and Fiber Science, Vol. 39(3): 482-492

Evaluating the effects of alternative forest management plans under various physiographic settings using historical records as a reference

Using historical General Land Office record as a reference, this study employed a landscape-scale disturbance and succession model to estimate the future cumulative effects of six alternative management plans on the tree species composition for various physiographic settings for the Mark Twain National Forest in Missouri. The results indicate that over a 200-year...

Author(s):

Yangjian Zhang; Hong S. He; Stephen R. Shifley; Jian Yang; Brian J. Palik

Year:

2011

Keywords:

GLO data, LANDIS, Management plan, Physiographic settings

Source:

Journal of Environmental Management. 92: 1618-1627.

Characterization of microwave liquefied bamboo residue and its potential use in the generation of nanofibrillated cellulosic fiber

Bamboo raw feedstocks with large particle size (20?80 mesh) were subjected to a microwave liquefaction system, and the liquefied products were separated into biopolyols and liquefied residues. Biopolyols were first analyzed by gas chromatography mass spectrometry (GC?MS), and the main components were sugar derivatives with 2?4 hydroxyl groups and phenolic compounds...

Author(s):

Jiulong Xie; Chung Hse; Chunjie Li; Todd F. Shupe; Tingxing Hu; Jinqiu Qi; Cornelis F. De Hoop

Year:

2016

Keywords:

Bamboo, Microwave liquefaction, Residue, Nanofibrillated cellulosic fiber, Characterization

Source:

ACS Sustainable Chemistry & Engineering

Past, present, and future role of silviculture in forest management

In general, silviculture can be defined as the art and science of controlling the establishment, growth, competition, health, and quality of forests and woodlands to meet the diverse needs and values of landowners and society on a sustainable basis (Helms 1998). This definition or variations of it have existed since the late 1800s. Gifford (1902), an Assistant...

Author(s):

Russell T. Graham; Theresa Benavidez Jain

Year:

2004

Keywords:

silviculture, forest management

Source:

In: Shepperd, Wayne D.; Eskew, Lane G., compilers. 2004. Silviculture in special places: Proceedings of the National Silviculture Workshop; 2003 September 8-11; Granby, CO. Proceedings RMRS-P-34. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. p. 1-14

Extraction and characterization of seed oil from naturally-grown Chinese tallow trees

Seeds were collected from locally and naturally grown Chinese tallow trees (CTT) and characterized for general physical and chemical properties and fatty acid composition of the lipids. The effects of four different solvents (petroleum ether, hexane, diethyl ether, and 95 % ethanol) and two extraction methods (supercritical carbon dioxide (SC-CO2) and conventional...

Author(s):

Xiao-Qin Yang; Hui Pan; Tao Zeng; Todd F. Shupe; Chung-Yun Hse

Year:

2013

Keywords:

Fatty acid compositions, Lipid yield, Oilseed crop, Soxhlet extraction, Stillingia oil, Supercritical carbon dioxide extraction

Source:

Journal of the American Oil Chemists’ Society 90: 459-466

Exploring the Origins of Ecological Forestry in North America

The use of ecological forestry to achieve management objectives, such as the maintenance of native biodiversity, has become increasingly common on public and private ownerships in North America. These approaches generally use natural disturbance processes and their structural and compositional outcomes as models for designing silvicultural prescriptions that restore or...

Author(s):

Anthony W. D'Amato; Brian J. Palik; Jerry F. Franklin; David R. Foster

Year:

2017

Keywords:

Source:

Journal of Forestry

Resolution dependence in an area-based approach to forest inventory with airborne laser scanning

In an Area Based Approach (ABA) to forest inventories using Airborne Laser Scanning (ALS) data, the sample plot size may vary or the cell size may differ from the plot size. Although this resolution mismatch may cause bias and increase in prediction error, it has not been thoroughly studied. The aim of this study was to clarify the meaning of resolution dependence in...

Author(s):

Petteri Packalen; Jacob Strunk; Tuula Packalen; Matti Maltamo; Lauri Mehtätalo

Year:

2019

Keywords:

Scale dependence, resolution invariance, airborne laser scanning, forest inventory, Lidar.

Source:

Remote Sensing of Environment. 224:192-201.

Changes in soil physical and chemical properties following organic matter removal and compaction: 20-year response of the aspen Lake-States Long Term Soil Productivity installations

Soil functions that control plant resource availability can be altered by management activities such as increased organic matter (OM) removal and soil compaction during forest harvesting. The Long Term Soil Productivity study was established to evaluate how these practices influence soil and site productivity using experimental treatments that span a range of forest...

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