2,420 research outputs found
Sandia Mountains, New Mexico
No full textIn "The West" series. Sandia Mountains visible in the distance with a road running diagonally in the foreground through a desert landscape
View of Sandias from Coronado Monument, New Mexico
No full textIn "The West" series. The Sandia Mountains in the distance, photographed from the Coronado Historic Site (Kuaua Pueblo) with an old wooden fence running diagonally in the foreground. Signed on back
Phantoms of Anglo-Confederate commerce : an historical and archaeological investigation of American civil war blockade running
No full textDuring the American Civil War Wilmington, North Carolina and the
Bermudian ports of St. Georges and Hamilton served as vital links in a
complex trading network that developed to facilitate the exchange of southern
agricultural products for war materials and civilian merchandise through a
Union blockade of the Confederacy. Although that material contributed
significantly to the Confederate war effort, Anglo-Confederate blockade
running has received limited scholarly attention. Much of the associated
literature is based on memoirs rather than scholarship and does not accurately,
reflect that necessarily clandestine trade. The primary goal of this thesis is to
produce a more comprehensive and detailed picture of blockade running, the
cargoes carried through the Union blockade and the powerful steam vessels
that made Anglo-Confederate commerce possible. Unlike previous treatments,
this thesis combines the results of both archival and archaeological research.
The results illustrate the evolution of strategies involved in both establishing
and maintaining the blockade and those developed for running the blockade.
Assessment of the vessel remains and historical data associated with the
construction and procurement of steamers identifies the vessel types and
confirms that blockade runners adapted extant technology. Contrary to the
popularly held impression, no technological innovations were specifically
developed to address the demands of the trade. The spatial distribution of
wrecks and the minimal amount of cultural material surviving in association
with them, provides strong evidence that cargoes were more valuable than the
vessels. That premise influenced the strategy adopted by blockade runners.
While Confederate salvors left little evidence of cargo, historical research
revealed a wealth of new insight into the specific nature of that material. This
new evidence provides a more accurate and detailed picture of Anglo-
Confederate blockade running and the strategies, ships and cargoes that made
blockade running between Wilmington and Bermuda a success
MODIS Global Terrestrial Evapotranspiration (ET) Product (NASA MOD16A2/A3) Collection 5. NASA Headquarters
No full textIn the original EOS proposal competition in 1989, Dr. Steve Running proposed and was selected as MODIS Science team member responsible for Leaf area index, evapotranspiration and photosynthesis/net primary production, then designated as MOD 15, 16 and 17. At the ATBD review for at-launch products in 1995, NASA decided to give MOD 15 LA I/FPAR to Dr. Ranga Myneni to provide a more theoretically based algorithm, and Dr. Running was directed to focus on MOD 17 PSN/NPP for the Terra atlaunch data product. MOD 16 ET was not dropped, but was deprioritized. At the EOS recompete in 2003 NASA selected another investigator to build a MOD 16 ET product but this investigation was not renewed in 2007. In the interim Dr. Running and the NTSG group had changed from an energy balance - surface resistance concept to a Penman-Monteith concept, and had greater success building a globally applicable algorithm. Since much of the processing paralleled our MOD 17 product, NTSG tested, then generated initial global ET datasets. In the 2010 renewal competition for the MODIS Science Team, Dr. Running reproposed MOD 16, based on the new algorithm and global ET datasets now developed, and published in refereed journals. Now, with selection of our 2010 renewal proposal complete, we offer the ATBD. This document represents our formal ATBD for establishing this algorithm and dataset as the official MOD 16 Evapotranspiration product
My-Self, Embodied in Motion: About Running Road with Autoethnography
No full textArtykuł pokazuje, w jaki sposób autoetnografia może wzbogacić badania nad sportem. Na
podstawie swoich doświadczeń jako byłej biegaczki wyczynowej autorka opisuje, w jaki sposób wykorzystała narzędzia takie jak: film autoetnograficzny, fotografia czy dziennik badawczy do kompleksowego antropologicznego opisu zmysłowego doświadczenia biegu. Badaczka obserwuje poszerzający się
zakres wykorzystania autoetnografii w różnorodnych tematach badawczych ze szczególnym pochyleniem się nad antropologią ciała. Mierzy się z problemem językowej niewyrażalności doświadczenia
ciała w sporcie i proponuje własne rozwiązania. Tekst został napisany na podstawie książki Ucieleśnione
w ruchu. Polskie biegaczki wyczynowe w perspektywie antropologicznej oraz uzupełniony o nowe spostrzeżenia. Jak pisze autorka: „Autoetnografia ma dla mnie wartość również w tym sensie, że jest ciekawą
konfrontacją rozmówców z badaczem, podczas której zachodzi wymiana doświadczeń i opinii. Jest to
swego rodzaju praca nad relacją. W ten sposób obie strony się odsłaniają, obie coś ryzykują, a to może
prowadzić do ciekawych wniosków” (Szyma 2019: 32).The article shows how autoethnography can enrich research on sport. As a former competitive runner, the author describes how she has used tools such as autoethnographical movie, photography, or research diary for a complex anthropological
illustration of the running experience. The researcher observer the expanding scope of ways in which this technique can be applied
to a variety of research topics, with a special consideration of the anthropology of body. She also tackles the problem of the linguistic
incommunicability of experiencing the body in sport as well as she suggests solutions. The article is based on the book Embodied in
Motion: Polish Female Professional Runners in Anthropological Perspective, but also supplemented with new observations. As its author
writes, “For me, autoethnography is valuable also in that it is an interesting engagement between the interlocutors and the researcher, during which an exchange of experiences and opinions takes place. It is a certain work on the relationship. This way, both parties
expose themselves; both risk something, and this can result in interesting conclusions” [the editor’s translation]
Effect of heat treatment on small scale fragmentation of aluminium alloy
No full textSmall scale explosions, using a detonator, of 7075 aluminium alloy cylinders,
15-100 mm outside diameter, were carried out to investigate the effects of heat
treatment on fragmentation. This was the finest for the strongest as received
alloy and coarsest for the softest overaged alloy. This effect was similar to
that seen in investigations of the fragmentation of steel. Cylinders of 50 and
100 mm in diameter did not fragment but plastically deformed with maximum
deformation at the cylinder bottom. Fragmentation of 33 and 42 mm diameter
cylinders produced long fragments typical of the break-up of thick walled
cylinders. At smaller diameters, break-up gave fragments of several shapes,
finer fragments being largely associated with the smallest diameter cylinders
and the highest strength alloys. Results followed those seen in large scale
studies of cylinder break-up and suggest the possibility of using small scale
fragmentation experiments in the investigation of the effects of composition,
heat treatment and processing on natural fragmentation
Estimating Terrestrial Primary Productivity by Combining Remote Sensing and Ecosystem Simulation
No full textBeginning in 1972 with the launch of Landsat 1, estimation of terrestrial plant production has been one of the most important applications attempted of satellite remote sensing. Initial interest focused on the prediction of regional crop yields, such as wheat (Erickson, 1984). However, changing goals, hardware capabilities, and theory have produced a steady evolution in the approaches taken to calculate net primary production (NPP) of large areas. Interest has also expanded to calculating primary production of natural vegetation. The much wider array of topography, climate, canopy geometry, and life-cycle dynamics exhibited by natural vegetation make computation of primary production much more challenging than the rather controlled, organized field conditions of a crop
Ecosystem Disturbance, Carbon, and Climate
No full textModels of climate change effects should incorporate land-use changes and episodic disturbances such as fires and insect epidemics
Relating Plant Capacitance to the Water Relations of Pinus Contorta
No full textInternal water storage of Pinus contorta Dougl. ex. Laud. (lodgepole pine) was estimated by both calculation and measurement. Readily available water from internal storage was calculated to be capable of providing 0.6 h of maximum transpiration. This estimate was substantiated by direct measurement. Needle water content contributed only 4% of total storage, but had an important role in stomatal response through the control of leaf conductance by leaf water potential. Leaf water potential was highly correlated with needle water content when measurements were taken under low transpiration conditions which minimized the flow-related component of water potential. When trees were cut and allowed to dry upright, the needles retained water and a stable leaf water potential for up to 33 days as the stem sapwood was depleted. Sapwood water content of intact trees remained fairly constant at 60–70% of saturation throughout the summer
Environmental control of leaf water conductance in conifers
No full textDiurnal measurements of leaf conductance, xylem water potential, temperature, humidity, and radiation were taken on six sites throughout Oregon. Xylem water potential was hypothesized to influence leaf conductance in two ways. First, predawn xylem water potential controlled the early-morning maximum leaf conductance of Pseudotsugamenziesii (Mirb.) Franco. Second, irrespective of predawn water potential, a threshold diurnal water potential was found. Whenever water potential of Pseudotsugamenziesii dropped below −20 bars (−20 × 105 Pa) during the day, a significant decrease in leaf conductance resulted. If the water potential threshold was not reached during the day, leaf conductance stayed at the morning maximum or decreased slightly in response to decreasing humidity
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