scholarly journals Forest Products Laboratory research program on small-diameter material.

2000 ◽  
Keyword(s):  
Research Program ◽  
Small Diameter ◽  
Forest Products ◽  
Laboratory Research

Seismic Design Guidelines to Mitigate Upheaval Buckling of Small Diameter Pipes

2012 ◽  
Author(s):  
Hajime Shinkai ◽  
Yoshito Hatsuda ◽  
Nobuhisa Suzuki
Keyword(s):  
High Pressure ◽  
Ground Motion ◽  
Seismic Design ◽  
Research Program ◽  
Strong Ground Motion ◽  
Small Diameter ◽  
Design Guidelines ◽  
Upheaval Buckling ◽  
Offshore Earthquake ◽  
Strong Ground

This paper describes The Draft Seismic Design Guidelines to Mitigate Upheaval Buckling of Small Diameter Pipes which were reported by Ministry of Economy, Trade and Industry in 2011. Upheaval buckling of small diameter gas pipes occurred in a high-pressure gas pipeline and three middle-pressure city lines due to the strong ground motion during the 2007 Niigata Chuetsu Offshore earthquake which was a powerful earthquake with moment magnitude of 6.6. A three year research program had been conducted since 2008 to investigate the upheaval buckling behaviors and develop seismic design guidelines to ensure seismic integrity of small diameter high-pressure gas pipelines and middle-pressure main distribution lines.

Seventy-five Years of Research in Wood Preservation and Deterioration

2020 ◽  
Vol 70 (4) ◽  
pp. 476-481
Author(s):  
H. M. Barnes
Keyword(s):  
Research Program ◽  
Forest Products ◽  
Wood Preservation ◽  
Mississippi State University ◽  
State University ◽  
Wood Protection ◽  
Research Areas ◽  
History Of

Abstract Seventy-five years of research in wood protection at the Forest Products Lab at Mississippi State University are described. A history of wood protection is presented along with an overview of the facilities supporting the research. Program objectives are presented along with the personnel responsible for building the program. A brief presentation of research areas is given followed by some program metrics.

scholarly journals White-tailed Deer Browsing and Rubbing Preferences for Trees and Shrubs That Produce Nontimber Forest Products

2009 ◽  
Vol 19 (1) ◽  
pp. 204-211 ◽  
Author(s):  
Scott E. Hygnstrom ◽  
Peter D. Skelton ◽  
Scott J. Josiah ◽  
Jason M. Gilsdorf ◽  
Dallas R. Virchow ◽  
...  
Keyword(s):  
Small Diameter ◽  
Forest Products ◽  
Nontimber Forest Products ◽  
Salix Alba ◽  
Salix Caprea ◽  
Forsythia Suspensa ◽  
Cornus Sericea ◽  
Salix Purpurea ◽  
Salix Matsudana ◽  
Trees And Shrubs

Nontimber forest products (food, herbal medicinals, and woody floral and handicraft products) produced in forest, agroforestry, and horticultural systems can be important sources of income to landowners. White-tailed deer (Odocoileus virginianus) can reduce the quality, quantity, and profitability of forest products by browsing twigs and rubbing stems, resulting in direct and indirect losses to production enterprises. We evaluated deer damage (frequency and intensity of browsing and rubbing) sustained by 26 species of trees and shrubs, the relationships among morphological features of trees and shrubs to damage levels, and the economic impacts of deer damage on the production of nontimber forest products. Levels of browsing were high (frequency >93% and intensity >50%) in most species of trees and shrubs, with the highest intensity (>60%) occurring in chinese chestnut (Castanea mollisima) and dogwood (Cornus spp.), and the lowest (<20%) in ginkgo (Ginkgo biloba), curly willow (Salix matsudana), ‘Scarlet Curls’ curly willow, smooth sumac (Rhus glabra), and pussy willow (Salix caprea). Species of trees or shrubs with one or a few stout stems unprotected by dense branching [e.g., american elderberry (Sambucus canadensis), smooth sumac, and curly willow] sustained the most damage by rubbing. Trees and shrubs with many small diameter stems or with dense tangled branching [e.g. redozier dogwood (Cornus sericea), forsythia (Forsythia suspensa), ‘Flame’ willow (Salix alba), and ‘Streamco’ basket willow (Salix purpurea)] were damaged the least by rubbing. Annual economic costs of deer damage to producers of nontimber forest products can range from $26/acre for pussy willow to $1595/acre for curly willow.

Sample Accountability Quality Assurance for the "Integrated Air Cancer Project" Research Program of the U.S. Environmental Protection Agency

1987 ◽  
Vol 70 (6) ◽  
pp. 1069-1072
Author(s):  
Randall R Watt ◽  
Larry T Cupitt
Keyword(s):  
Quality Assurance ◽  
Research Program ◽  
Environmental Protection Agency ◽  
Research Effort ◽  
Laboratory Research ◽  
Identification System ◽  
Collection Site ◽  
Sample Tracking ◽  
Cancer Project ◽  
Sample Transfer

Abstract A sample accountability quality assurance (QA) program is described for a field and laboratory research effort which resulted in collection of approximately 2000 samples for analysis by several EPA and contractor laboratories. A QA program was specifically developed for this research program to include sample transfer from collection site to storage maintenance, record development, transfer to researchers, and sample tracking at all stages. A sample identification system and sample custody records are described for field and laboratory application. The functions of a sample coordinator are also described as relating to sample custody, coordination of sample analysis with researchers, and development of computer record files to facilitate research and sample tracking.

scholarly journals Perceptions of Debarking Small-Diameter Stems in the Wood Products Community

2021 ◽  
Vol 71 (4) ◽  
pp. 371-378
Author(s):  
Azadwinder Singh Chahal ◽  
Jaya Tripathi ◽  
Daniel Ciolkosz ◽  
Sarah Wurzbacher ◽  
Michael Jacobson
Keyword(s):  
Small Diameter ◽  
Forest Products ◽  
Small Dimension ◽  
Pulp And Paper ◽  
Wood Products ◽  
Ecological Benefits ◽  
Secondary Markets ◽  
Dimension Lumber ◽  
The Status ◽  
Additional Processing

Abstract Sufficiently valuing small-diameter-stem (diameter &lt; 9 in.) woody material in Pennsylvania forest product markets may incentivize increased utilization of that material, a resource opportunity that would provide economic and ecological benefits to the state's forests and forest products community. Debarking is one primary process that could enhance the value of these small-diameter-stem materials for secondary markets. The wood products community in Pennsylvania was surveyed as to their perceptions of the status and value of economical small-diameter-stem debarking. The largest perceived current market for debarked, small-diameter-stem material identified by respondents is for chips for pulp and paper, and anticipated future demand is expected to be highest for chips for pulp and paper, chips for energy, and small-dimension lumber. Respondents who currently supply a given market tend to be more optimistic about that market than respondents who do not serve that particular market. Shredded wood/hog fuel and mulch are the two markets with the lowest overall scores for anticipated benefit of additional processing by debarking. Seventy-six percent of all respondents indicated that economical small-diameter-stem debarking would benefit their operation.

scholarly journals QUANTITATIVE RESEARCH ON LITTORAL DRIFT IN FIELD AND LABORATORY

1964 ◽  
Vol 1 (9) ◽  
pp. 18
Author(s):  
Per Bruun ◽  
James Purpura
Keyword(s):  
Research Program ◽  
Quantitative Research ◽  
Quantitative Information ◽  
Coastal Engineering ◽  
Laboratory Research ◽  
Littoral Drift ◽  
University Of Florida ◽  
Current Action ◽  
The University ◽  
A Current

The Coastal Engineering Laboratory of the University of Florida is at present carrying out a combined field and laboratory research program to gain quantitative information on littoral drift longshore as well as perpendicular to the shore. The laboratory utilizes modern tracing technique by luminophores including a scanning (counting of grains) machine and experiments in a wave tank where a current is passed through waters agitated by waves propagating parallel to or perpendicular to the current action.

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