Nonlinear Problems in the Dynamics of Thin Shells††These results were obtained in the course of research sponsored partially by the U.S. Army Research Office, Durham, under Grant No. DA-ARO(D)-31-124-G372 with the University of Florida, and partially by the Air Force Flight Dynamics Laboratory, Wright-Patterson Air Force Base, under Contract No. AF33 (657)-10220 with the General Electric Company.

1967 ◽  
pp. 291-307
Author(s):  
WILLIAM A. NASH
Keyword(s):  
Air Force ◽  
Flight Dynamics ◽  
Nonlinear Problems ◽  
Thin Shells ◽  
General Electric ◽  
University Of Florida ◽  
Air Force Base ◽  
The University ◽  
Research Office ◽  
The U.S

Assault on the French Canal Bridge

2020 ◽  
pp. 88-94
Author(s):  
R. A. Behrstock
Keyword(s):  
Air Force ◽  
Panama Canal ◽  
Military Bases ◽  
Canal Zone ◽  
Air Force Base ◽  
Birding Sites ◽  
The U.S

This chapter details the author's experience during a birding tour in Panama, when their group was mistakenly attacked by heavily armed U.S. soldiers. On December 31, 1999, forty-five years of jungle warfare training ended when the Panama Canal and the U.S. military bases in the Canal Zone, including popular birding sites such as Ft. Sherman, Ft. Clayton, and Albrook Air Force Base, were transferred to the Panamanian government. Until then, birding tours in the Canal Zone often encountered U.S. forces on jungle maneuvers. Walking through the woods along Achiote or Black Tank Road, the author's group encountered soldiers crouched in the undergrowth. Occasionally, the solder would ask if they had seen “the aggressor.” Communicating with outsiders, birders in this case, seemed to be part of their strategy.

Construction of Stone Matrix Asphalt Section at Edwards Air Force Base

1996 ◽  
Vol 1543 (1) ◽  
pp. 29-37
Author(s):  
James E. Shoenberger
Keyword(s):  
Air Force ◽  
Technical Assistance ◽  
Sand Fly ◽  
Void Content ◽  
Natural Sand ◽  
Asphalt Cement ◽  
Stone Matrix Asphalt ◽  
Air Force Base ◽  
The U.S ◽  
Stone Matrix

In February 1993, the U.S. Air Force Civil Engineering Support Agency asked the U.S. Army Engineer Waterways Experiment Station to provide technical assistance for construction of a stone matrix asphalt (SMA) pavement demonstration project at Edwards Air Force Base (AFB). In August 1993, approximately 0.8 km (0.5 mi) of SMA pavement was placed on a road at Edwards AFB. The SMA mixture contained crushed stone, natural sand, fly ash, cellulose fiber, and an AR-4000 asphalt cement. The following summer, it was reported that excessive amounts of bleeding had occurred in all wheelpaths. An inspection in August 1994 confirmed this finding, and it was noted that the bleeding was worse near the intersections. The SMA mixture apparently contained too much asphalt cement. Several factors contributed to the bleeding: (a) the SMA mixture as designed contained too many fines, especially in passing the No. 4 sieve, compared with current guidance from the National Asphalt Paving Association and others; (b) the void content of the mixture may have been inadequate; and (c) samples obtained from the in-place pavement had a finer grading and higher asphalt content than specified. The bleeding has caused concern; however, no maintenance has been performed on the SMA pavement and no measurable rutting has occurred in the wheelpaths.

scholarly journals 226 USING CD-ROM COMPUTER TECHNOLOGY TO TEACH PLANT MATERIALS

HortScience ◽  
1994 ◽  
Vol 29 (5) ◽  
pp. 461g-462
Author(s):  
Edward F. Gilman
Keyword(s):  
Computer Technology ◽  
Morphological Characteristics ◽  
Plant Materials ◽  
University Of Florida ◽  
Cd Rom ◽  
Line Drawings ◽  
Site Characteristics ◽  
Reasonable Cost ◽  
The University ◽  
The U.S

Due to the high cost of color separations, few plant materials texts have photographs and line drawings showing each plant at different times of the year and at different ages. CD-ROM computer technology allows the user ready access to this information at a reasonable cost. Horticulturists at the University of Florida have developed three CD-ROM discs for use throughout the U.S. The discs contain more than 3000 pages of text, extensive morphological characteristics and plant use suggestions, in addition to more than 2000 line drawings and nearly 3600 photographs of more than 1,800 plant species. Software developed for DOS and Windows allows the student to generate customized plant lists for landscape sites. Lists can be created to match specific site characteristics, desirable ornamental attributes, or both. Students can also use the programs to help identify unknown plant specimens. Other features allow viewing of insect and disease problems and access to up-to-date control recommendations.

scholarly journals Morphological and Cytological Comparisons of Eight Varieties of Trailing Lantana (Lantana montevidensis) Grown in Florida

HortScience ◽  
2019 ◽  
Vol 54 (12) ◽  
pp. 2134-2138
Author(s):  
Carlee Steppe ◽  
Sandra B. Wilson ◽  
Zhanao Deng ◽  
Keri Druffel ◽  
Gary W. Knox
Keyword(s):  
Nuclear Dna ◽  
Native Plants ◽  
Nuclear Dna Content ◽  
Flower Morphology ◽  
Ornamental Plant ◽  
Cold Sensitivity ◽  
Pollen Stainability ◽  
University Of Florida ◽  
The University ◽  
The U.S

Trailing lantana (Lantana montevidensis) is a popular low-growing ornamental plant valued for its heat and drought tolerance and continuous purple or white flowering throughout much of the year. Recently, trailing lantana was predicted to be invasive by the University of Florida/Institute of Food and Agricultural Sciences (UF-IFAS) Assessment of Non-Native Plants in Florida, and therefore not recommended for use. All cultivars fall under this designation unless proven otherwise. Eight trailing lantana varieties were obtained from wholesale growers and naturalized populations found in Texas and Australia. Plants were propagated vegetatively, finished in 4-inch pots, and planted under field conditions to determine morphological and cytological differences among varieties. Australian trailing lantana differed morphologically from the other varieties in its smaller habit, leaves (which had serrate-crenate leaf margins, and fewer appressed hairs), heavy fruiting, and cold sensitivity (observational reduced growth and flowering during winter months). Nuclear DNA content analysis suggests that Australian trailing lantana is likely a tetraploid and all other varieties evaluated were likely triploids with high levels of sterility. Pollen stainability of Australian trailing lantana was moderately high (58.83%), whereas pollen production was rarely observed in all other varieties. Results support that there are two forms of trailing lantana, the U.S. varieties distinguished by their leaf and flower morphology, ploidy level, and the absence of fruit and viable pollen.

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