Sample records for tropical forest conversion

  1. PAR conversion efficiencies of a tropical rain forest R.J. Luxmoore1 J.G. Saldarriaga2

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    -MJ-1 range of PAR energy conversion values derived from Jordan (1971) for 17 forest types, includingPAR conversion efficiencies of a tropical rain forest R.J. Luxmoore1 J.G. Saldarriaga2 1) absorbed during various stages of regeneration of a tropical rain forest in the upper Rio Negro region

  2. Modest carbon price could save Borneo forests: study Reuters, 4 June 2009 -Tropical forests in Borneo under threat of conversion to palm oil

    E-Print Network [OSTI]

    in Borneo under threat of conversion to palm oil plantations could be more profitable left standing threat of being converted to oil palm plantations. "They are not meant to be clearing forest for palm oil development. It's pretty clear that forests are being felled for oil palm," said Venter, a conservation

  3. Accuracy of small footprint airborne LiDAR in its predictions of tropical moist forest stand structure

    E-Print Network [OSTI]

    Chave, Jérôme

    . Introduction Tropical forests offer a broad range of ecosystem services, from carbon sequestration to potential valuation of biodiversity compo- nents. But, forest conversion in the tropics has dramatically altered and verifiable", and this prompted renewed interest in providing standardized and reproducible methods of forest

  4. ONGOING RESEARCH PROJECTS Model of tropical forest structure and dynamics

    E-Print Network [OSTI]

    Hill, Jeffrey E.

    ONGOING RESEARCH PROJECTS Model of tropical forest structure and dynamics There is a need canopy structure and partitions dynamic rates for a tropical forest on Barro Colorado Island (BCI structure and partitions dynamic rates in a tropical forest. In Review. Journal of Ecology. #12;PPA model

  5. Proximate and Underlying Causes of Tropical Deforestation: The Event Ecology of Migration and Forest Conversion in the Sierra de Lacandn National Park, Guatemala1

    E-Print Network [OSTI]

    Lopez-Carr, David

    1 Proximate and Underlying Causes of Tropical Deforestation: The Event Ecology of Migration deforestation, scholars of land use/cover change (LUCC) have focused almost exclusively on in situ (or "on causes of deforestation in the humid tropics with a case study from Guatemala. To investigate the first

  6. Benefits of Tropical Forest Management Under the New Climate...

    Open Energy Info (EERE)

    Case Study in Cambodia Jump to: navigation, search Name Benefits of Tropical Forest Management Under the New Climate Change Agreement-A Case Study in Cambodia Agency...

  7. Effects of grazing intensity on soil carbon stocks following deforestation of a Hawaiian dry tropical forest

    E-Print Network [OSTI]

    Elmore, Andrew J.

    Effects of grazing intensity on soil carbon stocks following deforestation of a Hawaiian dry carbon (SOC) along gradients of grazing intensity and elevation in pastures converted from dry tropical of forest-to-pasture conversion on soil carbon (C) stocks depend on a combination of climatic and management

  8. Chapter Number1 Biomass Prediction in Tropical Forests:2

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Chapter Number1 Biomass Prediction in Tropical Forests:2 The Canopy Grain Approach3 Christophe France9 1. Introduction10 The challenging task of biomass prediction in dense and heterogeneous tropical different forest structures may indeed present similar above ground biomass (AGB) values.13 This is probably

  9. Species Loss and Aboveground Carbon Storage in a Tropical Forest

    E-Print Network [OSTI]

    Bunker, Daniel E.

    of tropical tree species on carbon storage by simulating 18 possible extinction scenarios within a well-studied 50-hectare tropical forest plot in Panama, which contains 227 tree species. Among extinction as well as the size and longevity of tropical trees. Instead, we simulated species extinctions

  10. Insights into the historical construction of species-rich Mesoamerican seasonally dry tropical forests: the diversification

    E-Print Network [OSTI]

    Olson, Mark

    Insights into the historical construction of species-rich Mesoamerican seasonally dry tropical, Mesoamerica, niche conservatism, seasonally dry tropical forests. Summary · Mesoamerican arid biomes epitomize the vast species richness of Meso- american seasonally dry tropical forests (SDTFs), and to evaluate

  11. african tropical forests: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Cory C. Cleveland1,4, and Alan R in tropical rain forests may be among the highest on earth. However, data supporting this contention are rare Cleveland, Cory 116 THE WEST...

  12. african tropical forest: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Cory C. Cleveland1,4, and Alan R in tropical rain forests may be among the highest on earth. However, data supporting this contention are rare Cleveland, Cory 116 THE WEST...

  13. Variable Responses of Lowland Tropical Forest Nutrient Status

    E-Print Network [OSTI]

    Harms, Kyle E.

    Variable Responses of Lowland Tropical Forest Nutrient Status to to play a key role in nutrient retention. We discuss our findings in the context of possible impacts Springer Science+Business Media, LLC 387 #12;growth not only alters forests' nutrient demands but also

  14. Tropical forest responses to increasing atmospheric CO2: current knowledge and opportunities for future research

    E-Print Network [OSTI]

    Bermingham, Eldredge

    their representation in Earth system models. Tropical forests play a significant role in the global carbon cycle

  15. Low beta diversity of herbivorous insects in tropical forests

    E-Print Network [OSTI]

    Basset, Yves

    LETTERS Low beta diversity of herbivorous insects in tropical forests Vojtech Novotny1 , Scott E) and fruit (fruitflies, Diptera) found a low rate of change in species composition (beta diversity) across 75 of kilo- metres. Low beta diversity was also documented in groups with differing host specificity

  16. Tropical Forestry Researchat the USDA Forest Service's Instituteof Pacific Islands Forestry1

    E-Print Network [OSTI]

    Standiford, Richard B.

    Tropical Forestry Researchat the USDA Forest Service's Instituteof Pacific Islands Forestry1 C greater emphasis on tropical forestry management and research was provided by the International Forestry Islands Forestry in Hawaii, the Institute of Tropical Forestry in Puerto Rico, and the U S . Forest

  17. Energy dynamics and modeled evapotranspiration from a wet tropical forest in Costa Rica

    E-Print Network [OSTI]

    Energy dynamics and modeled evapotranspiration from a wet tropical forest in Costa Rica H). #12;1. Introduction The energy balance of tropical forests is complex due to feedback mechanisms among.W. Loeschera, *, H.L. Gholza,b , J.M. Jacobsc , S.F. Oberbauerd,e a School of Forest Resources and Conservation

  18. Characterization of Throughfall Heterogeneity in a Tropical Pre-Montane Could Forest in Costa Rica

    E-Print Network [OSTI]

    Berger, Amelie Cecile

    2013-09-26T23:59:59.000Z

    CHARACTERIZATION OF THROUGHFALL HETEROGENEITY IN A TROPICAL PRE-MONTANE CLOUD FOREST IN COSTA RICA An Undergraduate Research Scholars Thesis by AMELIE CECILE BERGER Submitted to Honors and Undergraduate Research Texas A... .......................................................................................................4 Tropical forest hydrology ........................................................................................7 Study site: watershed near San Isidro, Costa Rica .................................................13 Quantification...

  19. Leaf traits and foliar CO2 exchange in a Peruvian tropical montane cloud forest 

    E-Print Network [OSTI]

    Van de Weg, Marjan

    2011-06-28T23:59:59.000Z

    Tropical montane cloud forests (TMCF) are one of the most fascinating, but least understood ecosystems in the world, and the interest in the carbon (C) cycle of TMCFs with regard to carbon sequestration and storage ...

  20. The occurrence and diversity of tree legumes as influenced by soil properties in selected tropical forests in Costa Rica

    E-Print Network [OSTI]

    Wesch, Richard Albert

    1999-01-01T23:59:59.000Z

    Legumes play important roles in tropical forests due to their contribution to N?-fixation and nutrient cycling. Our objectives were to determine which soil properties, if any, affect the occurrence and distribution of tree legumes in a tropical wet...

  1. Communities of fungal endophytes in tropical forest grasses: highly diverse host-and habitat

    E-Print Network [OSTI]

    Coley, Phyllis

    Communities of fungal endophytes in tropical forest grasses: highly diverse host- and habitat: Charles W. Bacon Keywords: Barro Colorado Island Biodiversity Community assembly Fungal endophytes Poaceae- studied endophytes in the lowland forests of Panama. We used sequence data for 402 isolates from two

  2. perspective: The responses of tropical forest species to global climate change: acclimate, adapt, migrate, or go extinct?

    E-Print Network [OSTI]

    Feeley, Kenneth J; Rehm, Evan M; Machovina, Brian

    2012-01-01T23:59:59.000Z

    maps.  Nature Climate Change, 2, 182–185.   Bacles, S.   (1998)  Global  climate  change  and  tropical  forest 2011) Impacts  of  climate  change  on  the  world's  most 

  3. Effects of nitrogen additions on above- and belowground carbon dynamics in two tropical forests

    SciTech Connect (OSTI)

    Cusack, D.; Silver, W.L.; Torn, M.S.; McDowell, W.H.

    2011-04-15T23:59:59.000Z

    Anthropogenic nitrogen (N) deposition is increasing rapidly in tropical regions, adding N to ecosystems that often have high background N availability. Tropical forests play an important role in the global carbon (C) cycle, yet the effects of N deposition on C cycling in these ecosystems are poorly understood. We used a field N-fertilization experiment in lower and upper elevation tropical rain forests in Puerto Rico to explore the responses of above- and belowground C pools to N addition. As expected, tree stem growth and litterfall productivity did not respond to N fertilization in either of these Nrich forests, indicating a lack of N limitation to net primary productivity (NPP). In contrast, soil C concentrations increased significantly with N fertilization in both forests, leading to larger C stocks in fertilized plots. However, different soil C pools responded to N fertilization differently. Labile (low density) soil C fractions and live fine roots declined with fertilization, while mineral-associated soil C increased in both forests. Decreased soil CO2 fluxes in fertilized plots were correlated with smaller labile soil C pools in the lower elevation forest (R2 = 0.65, p\\0.05), and with lower live fine root biomass in the upper elevation forest (R2 = 0.90, p\\0.05). Our results indicate that soil C storage is sensitive to N deposition in tropical forests, even where plant productivity is not N-limited. The mineral-associated soil C pool has the potential to respond relatively quickly to N additions, and can drive increases in bulk soil C stocks in tropical forests.

  4. Tropical forest responses to increasing [CO2]: current knowledge and opportunities for future research

    SciTech Connect (OSTI)

    Cernusak, Lucas [Australian National University, Canberra, Australia; Winter, Klaus [Smithsonian Tropical Research Institute; Dalling, James [University of Illinois, Urbana-Champaign; Holtum, Joseph [James Cook University; Jaramillo, Carlos [Smithsonian Tropical Research Institute; Korner, Christian [University of Basel; Leakey, Andrew D.B. [University of Illinois; Norby, Richard J [ORNL; Poulter, Benjamin [Laboratoire des Sciences du Climat et de l'Environement, France; Turner, Benjamin [Smithsonian Tropical Research Institute; Wright, S. Joseph [Smithsonian Tropical Research Institute

    2013-01-01T23:59:59.000Z

    Elevated atmospheric [CO2] (ca) will undoubtedly affect the metabolism of tropical forests worldwide; however, critical aspects of how tropical forests will respond remain largely unknown. Here we review the current state of knowledge about physiological and ecological responses, with the aim of providing a framework that can help to guide future experimental research. Modelling studies have indicated that elevated ca can potentially stimulate photosynthesis more in the tropics than at higher latitudes, because suppression of photorespiration by elevated ca increases with temperature. However, canopy leaves in tropical forests could also potentially reach a high temperature threshold under elevated ca that will moderate the rise in photosynthesis. Belowground responses, including fine root production, nutrient foraging, and soil organic matter processing, will be especially important to the integrated ecosystem response to elevated CO2. Water-use efficiency will increase as ca rises, potentially impacting upon soil moisture status and nutrient availability. Recruitment may be differentially altered for some functional groups, potentially decreasing ecosystem carbon storage. Whole-forest CO2 enrichment experiments are urgently needed to test predictions of tropical forest functioning under elevated ca. Smaller scale experiments in the understory and in gaps would also be informative, and could provide stepping stones toward stand-scale manipulations.

  5. Forest Restoration Carbon Analysis of Baseline Carbon Emissions and Removal in Tropical Rainforest at La Selva Central, Peru

    SciTech Connect (OSTI)

    Patrick Gonzalez; Benjamin Kroll; Carlos R. Vargas

    2006-01-10T23:59:59.000Z

    Conversion of tropical forest to agricultural land and pasture has reduced forest extent and the provision of ecosystem services, including watershed protection, biodiversity conservation, and carbon sequestration. Forest conservation and reforestation can restore those ecosystem services. We have assessed forest species patterns, quantified deforestation and reforestation rates, and projected future baseline carbon emissions and removal in Amazon tropical rainforest at La Selva Central, Peru. The research area is a 4800 km{sup 2} buffer zone around the Parque Nacional Yanachaga-Chemillen, Bosque de Proteccion San Matias-San Carlos, and the Reserva Comunal Yanesha. A planned project for the period 2006-2035 would conserve 4000 ha of forest in a proposed 7000 ha Area de Conservacion Municipale de Chontabamba and establish 5600 ha of natural regeneration and 1400 ha of native species plantations, laid out in fajas de enriquecimiento (contour plantings), to reforest 7000 ha of agricultural land. Forest inventories of seven sites covering 22.6 ha in primary forest and 17 sites covering 16.5 ha in secondary forest measured 17,073 trees of diameter {ge} 10 cm. The 24 sites host trees of 512 species, 267 genera, and 69 families. We could not identify the family of 7% of the trees or the scientific species of 21% of the trees. Species richness is 346 in primary forest and 257 in the secondary forest. In primary forest, 90% of aboveground biomass resides in old-growth species. Conversely, in secondary forest, 66% of aboveground biomass rests in successional species. The density of trees of diameter {ge} 10 cm is 366 trees ha{sup -1} in primary forest and 533 trees ha{sup -1} in secondary forest, although the average diameter is 24 {+-} 15 cm in primary forest and 17 {+-} 8 cm in secondary forest. Using Amazon forest biomass equations and wood densities for 117 species, aboveground biomass is 240 {+-} 30 t ha{sup -1} in the primary sites and 90 {+-} 10 t ha{sup -1} in the secondary sites. Aboveground carbon density is 120 {+-} 15 t ha{sup -1} in primary forest and 40 {+-} 5 t ha{sup -1} in secondary forest. Forest stands in the secondary forest sites range in age from 10 to 42 y. Growth in biomass (t ha{sup -1}) as a function of time (y) follows the relation: biomass = 4.09-0.017 age{sup 2} (p < 0.001). Aboveground biomass and forest species richness are positively correlated (r{sup 2} = 0.59, p < 0.001). Analyses of Landsat data show that the land cover of the 3700 km{sup 2} of non-cloud areas in 1999 was: closed forest 78%; open forest 12%, low vegetation cover 4%, sparse vegetation cover 6%. Deforestation from 1987 to 1999 claimed a net 200 km{sup 2} of forest, proceeding at a rate of 0.005 y{sup -1}. Of those areas of closed forest in 1987, only 89% remained closed forest in 1999. Consequently, closed forests experienced disruption in the time period at double the rate of net deforestation. The three protected areas experienced negligible deforestation or slight reforestation. Based on 1987 forest cover, 26,000 ha are eligible for forest carbon trading under the Clean Development Mechanism, established by the Kyoto Protocol to the United Nations Framework Convention on Climate Change. Principal components analysis showed that distance to nonforest was the factor that best explained observed patterns of deforestation while distance to forest best explained observed patterns of reforestation, more significant than elevation, distance to rivers, distance to roads, slope, and distance to towns of population > 400. Aboveground carbon in live vegetation in the project area decreased from 35 million {+-} 4 million t in 1987 to 34 million {+-} 4 million t in 1999. Projected aboveground carbon in live vegetation would fall to 33 million {+-} 4 million t in 2006, 32 million {+-} 4 million t in 2011, and 29 million {+-} 3 million t in 2035. Projected net deforestation in the research area would total 13,000 {+-} 3000 ha in the period 1999-2011, proceeding at a rate of 0.003 {+-} 0.0007 y{sup -1}, and would total 33,000 {+-} 7000

  6. Root morphology and anchorage of six native tree species from a tropical montane forest and an elfin forest in Ecuador

    E-Print Network [OSTI]

    Lehmann, Johannes

    in tropical forests in Ecuador. Increasing altitude was accompanied by higher wind speeds and more shallow anchorage in soils with low bulk density and in environments with high wind speeds. Abbreviations: AR m. At 3000 m, 48% of the trees were inclined, lying or even partly uprooted. At this altitude, all

  7. BIOTROPICA *(*): ****** **** 10.1111/j.1744-7429.2007.00337.x Impact of Research Trails on Seedling Dynamics in a Tropical Forest

    E-Print Network [OSTI]

    Goldsmith, Greg

    on Seedling Dynamics in a Tropical Forest Liza S. Comita1 Department of Biology, University of Georgia, Athens

  8. Wood density measurement protocol J Chave Page 1 Measuring wood density for tropical forest trees

    E-Print Network [OSTI]

    Chave, Jérôme

    Wood density measurement protocol ­ J Chave Page 1 Measuring wood density for tropical forest trees Diversité Biologique Université Paul Sabatier 31000 Toulouse, France 1. Introduction Wood is a biological, that transport the sap along the stem and they are filled by water. The density of tree wood is an interesting

  9. Characterization of Trapped Lignin-Degrading Microbes in Tropical Forest Soil

    E-Print Network [OSTI]

    Hazen, Terry

    Characterization of Trapped Lignin-Degrading Microbes in Tropical Forest Soil Kristen M. DeAngelis1 Abstract Lignin is often the most difficult portion of plant biomass to degrade, with fungi generally thought to dominate during late stage decomposition. Lignin in feedstock plant material represents

  10. U.S Markets for Certified and Non-Certified Hardwood Tropical Forest Products

    E-Print Network [OSTI]

    Wu, Qinglin

    which approached 2 million (mainly wooden) houses (FAO/UNECE, 2004). By 1992, Latin America supplied 70 volume and 57 percent of value. Latin America was the second largest supplier of tropical hardwood veneer Forest Products Development Center School of Renewable Natural Resources Louisiana State University

  11. Global Patterns of Ecological Productivity and Tropical Forest Biomass

    E-Print Network [OSTI]

    Wisconsin at Madison, University of

    those measurements in addition to climate data to construct a suite of empirical models of NPP productivity (NPP) on a global scale and biomass accumulation across thee tropics. Scientists have been model of terrestrial net primary productivity (NPP), and its simplicity and relative accuracy has led

  12. Arbuscular mycorrhizal mycelial respiration in a moist tropical forest

    E-Print Network [OSTI]

    Bermingham, Eldredge

    Universiteit, De Boelelaan 1085, 1081 HV Amsterdam, The Netherlands; 4 Ecological Farming Systems, Research Tropical Research Institute, 0843- 03092 Balboa, Ancon, Panama; 3 Institute of Ecological Science, Vrije Station ART, Swiss Federal Research Institute Agroscope, Zurich, Switzerland; 5 Plant­Microbe Interactions

  13. Characterization of Trapped Lignin-Degrading Microbes in Tropical Forest Soil

    SciTech Connect (OSTI)

    DeAngelis, Kristen; Allgaier, Martin; Chavarria, Yaucin; Fortney, Julian; Hugenholtz, Phillip; Simmons, Blake; Sublette, Kerry; Silver, Whendee; Hazen, Terry

    2011-07-14T23:59:59.000Z

    Lignin is often the most difficult portion of plant biomass to degrade, with fungi generally thought to dominate during late stage decomposition. Lignin in feedstock plant material represents a barrier to more efficient plant biomass conversion and can also hinder enzymatic access to cellulose, which is critical for biofuels production. Tropical rain forest soils in Puerto Rico are characterized by frequent anoxic conditions and fluctuating redox, suggesting the presence of lignin-degrading organisms and mechanisms that are different from known fungal decomposers and oxygen-dependent enzyme activities. We explored microbial lignin-degraders by burying bio-traps containing lignin-amended and unamended biosep beads in the soil for 1, 4, 13 and 30 weeks. At each time point, phenol oxidase and peroxidase enzyme activity was found to be elevated in the lignin-amended versus the unamended beads, while cellulolytic enzyme activities were significantly depressed in lignin-amended beads. Quantitative PCR of bacterial communities showed more bacterial colonization in the lignin-amended compared to the unamended beads after one and four weeks, suggesting that the lignin supported increased bacterial abundance. The microbial community was analyzed by small subunit 16S ribosomal RNA genes using microarray (PhyloChip) and by high-throughput amplicon pyrosequencing based on universal primers targeting bacterial, archaeal, and eukaryotic communities. Community trends were significantly affected by time and the presence of lignin on the beads. Lignin-amended beads have higher relative abundances of representatives from the phyla Actinobacteria, Firmicutes, Acidobacteria and Proteobacteria compared to unamended beads. This study suggests that in low and fluctuating redox soils, bacteria could play a role in anaerobic lignin decomposition.

  14. Characterization of trapped lignin-degrading microbes in tropical forest soil

    SciTech Connect (OSTI)

    DeAngelis, K.M.; Allgaier, M.; Chavarria, Y.; Fortney, J.L.; Hugenholz, P.; Simmons, B.; Sublette, K.; Silver, W.L.; Hazen, T.C.

    2011-03-01T23:59:59.000Z

    Lignin is often the most difficult portion of plant biomass to degrade, with fungi generally thought to dominate during late stage decomposition. Lignin in feedstock plant material represents a barrier to more efficient plant biomass conversion and can also hinder enzymatic access to cellulose, which is critical for biofuels production. Tropical rain forest soils in Puerto Rico are characterized by frequent anoxic conditions and fluctuating redox, suggesting the presence of lignin-degrading organisms and mechanisms that are different from known fungal decomposers and oxygen-dependent enzyme activities. We explored microbial lignin-degraders by burying bio-traps containing lignin-amended and unamended biosep beads in the soil for 1, 4, 13 and 30 weeks. At each time point, phenol oxidase and peroxidase enzyme activity was found to be elevated in the lignin-amended versus the unamended beads, while cellulolytic enzyme activities were significantly depressed in lignin-amended beads. Quantitative PCR of bacterial communities showed more bacterial colonization in the lignin-amended compared to the unamended beads after one and four weeks, suggesting that the lignin supported increased bacterial abundance. The microbial community was analyzed by small subunit 16S ribosomal RNA genes using microarray (PhyloChip) and by high-throughput amplicon pyrosequencing based on universal primers targeting bacterial, archaeal, and eukaryotic communities. Community trends were significantly affected by time and the presence of lignin on the beads. Lignin-amended beads have higher relative abundances of representatives from the phyla Actinobacteria, Firmicutes, Acidobacteria and Proteobacteria compared to unamended beads. This study suggests that in low and fluctuating redox soils, bacteria could play a role in anaerobic lignin decomposition.

  15. Characterization of Trapped Lignin-Degrading Microbes in Tropical Forest Soil

    SciTech Connect (OSTI)

    DeAngelis, Kristen M.; Allgaier, Martin; Chavarria, Yaucin; Fortney, Julian L.; Hugenholtz, Philip; Simmons, Blake A.; Sublette, Kerry; Silver, Whendee; Hazen, Terry C.

    2011-04-29T23:59:59.000Z

    Lignin is often the most difficult portion of plant biomass to degrade, with fungi generally thought to dominate during late stage decomposition. Lignin in feedstock plant material represents a barrier to more efficient plant biomass conversion and can also hinder enzymatic access to cellulose, which is critical for biofuels production. Tropical rain forest soils in Puerto Rico are characterized by frequent anoxic conditions and fluctuating redox, suggesting the presence of lignin-degrading organisms and mechanisms that are different from known fungal decomposers and oxygen-dependent enzyme activities. We explored microbial lignin-degraders by burying bio-traps containing lignin-amended and unamended biosep beads in the soil for 1, 4, 13 and 30 weeks. At each time point, phenol oxidase and peroxidase enzyme activity was found to be elevated in the lignin-amended versus the unamended beads, while cellulolytic enzyme activities were significantly depressed in lignin-amended beads. Quantitative PCR of bacterial communities showed more bacterial colonization in the lignin-amended compared to the unamended beads after one and four weeks, suggesting that the lignin supported increased bacterial abundance. The microbial community was analyzed by small subunit 16S ribosomal RNA genes using microarray (PhyloChip) and by high-throughput amplicon pyrosequencing based on universal primers targeting bacterial, archaeal, and eukaryotic communities. Community trends were significantly affected by time and the presence of lignin on the beads. Lignin-amended beads have higher relative abundances of representatives from the phyla Actinobacteria, Firmicutes, Acidobacteria and Proteobacteria compared to unamended beads. This study suggests that in low and fluctuating redox soils, bacteria could play a role in anaerobic lignin decomposition.

  16. Integrating soil macroinvertebrate diversity, litter decomposition and secondary succession in a tropical montane cloud forest in Mexico 

    E-Print Network [OSTI]

    Negrete-Yankelevich, Simoneta

    This research considers human impacts on three components of biodiversity (composition, spatial structure and function). Given the relict character and unusual biogeochemical balance of tropical montane cloud forests in Mexico, logging poses a...

  17. Decelerating growth in tropical forest trees Kenneth J. Feeley,1

    E-Print Network [OSTI]

    Bermingham, Eldredge

    significantly at both forests regardless of initial size or organizational level (species, community or stand poorly understood. We examined changes in tree growth rates over the past two decades for all species productivity caused by rising concentrations of atmospheric CO2 and carbon fertilization (Melillo et al. 1993

  18. Fast Pyrolysis Conversion Tests of Forest Concepts’ Crumbles.

    SciTech Connect (OSTI)

    Santosa, Daniel M.; Zacher, Alan H.; Eakin, David E.

    2012-04-02T23:59:59.000Z

    The report describes the work done by PNNL on assessing Forest Concept's engineered feedstock using the bench-scale continuous fast pyrolysis system to produce liquid bio-oil, char and gas. Specifically, bio-oil from the following process were evaluated for its yield and quality to determine impact of varying feed size parameters. Furthermore, the report also describes the handling process of the biomass and the challenges of operating the system with above average particle size.

  19. Patterns and mechanisms of soil acidification in the conversion of grasslands to forests

    E-Print Network [OSTI]

    Nacional de San Luis, Universidad

    Patterns and mechanisms of soil acidification in the conversion of grasslands to forests ESTEBAN G) evaluate the mechanisms of soil acidification. We characterized soil changes with afforestation using ten acids or enhanced carbonic acid production in the soil, is the dominant mechanism of acidification

  20. Plant and microbial controls on nitrogen retention and loss in a Humid Tropical Forest

    SciTech Connect (OSTI)

    Templer, P.; Silver, W.; Pett-Ridge, J.; DeAngelis, K.M.; Firestone, M.K.

    2009-09-15T23:59:59.000Z

    Humid tropical forests are generally characterized by the lack of nitrogen (N) limitation to net primary productivity, yet paradoxically have high potential for N loss. We conducted an intensive field experiment with {sup 15}NH{sub 4} and {sup 15}NO{sub 3} additions to highly weathered tropical forest soils to determine the relative importance of N retention and loss mechanisms. Over half of all the NH{sub 4}{sup +} produced from gross mineralization was rapidly converted to NO{sub 3}{sup -} during the process of gross nitrification. During the first 24 h plant roots took up 28 % of the N mineralized, dominantly as NH{sub 4}{sup +}, and were a greater sink for N than soil microbial biomass. Soil microbes were not a significant sink for added {sup 15}NH{sub 4}{sup +} or {sup 15}NO{sub 3}{sup -} during the first 24 hr, and only for {sup 15}NH{sub 4}{sup +} after 7 d. Patterns of microbial community composition, as determined by Terminal Restriction Fragment Length Polymorphism analysis, were weakly, but significantly correlated with nitrification and denitrification to N{sub 2}O. Rates of dissimilatory NO{sub 3}{sup -} reduction to NH{sub 4}{sup +} (DNRA) were high in this forest, accounting for up to 25 % of gross mineralization and 35 % of gross nitrification. DNRA was a major sink for NO{sub 3}{sup -} which may have contributed to the lower rates of N{sub 2}O and leaching losses. Despite considerable N conservation via DNRA and plant NH{sub 4}{sup +} uptake, the fate of approximately 45% of the NO{sub 3}{sup -} produced and 22% of the NH{sub 4}{sup +} produced were not measured in our fluxes, suggesting that other important pathways for N retention and loss (e.g., denitrification to N{sub 2}) are important in this system. The high proportion of mineralized N that was rapidly nitrified and the fates of that NO{sub 3}{sup -} highlight the key role of gross nitrification as a proximate control on N retention and loss in humid tropical forest soils. Furthermore, our results demonstrate the importance of the coupling between DNRA and plant uptake of NH{sub 4}{sup +} as a potential N conserving mechanism within tropical forests.

  1. Long-term persistence of pioneer species in tropical forest soil seed banks

    SciTech Connect (OSTI)

    Dalling, J W; Brown, T A

    2008-10-05T23:59:59.000Z

    In tropical forests, pioneer species regenerate from seeds dispersed directly into canopy gaps, and from seeds that persisted in soil seed banks before gap formation. However, life-history models suggest that selection for long-term persistence of seeds in soil should be weak, as persistence incurs a fitness cost resulting from prolonged generation time. We use a carbon dating technique to provide the first direct measurements of seed persistence in undisturbed tropical forest seed banks. We show that seeds germinate successfully from surface soil microsites up to 38 years after dispersal. Decades-long persistence may be common in pioneers with relatively large mass, and appears to be unrelated to specific regeneration requirements. In Croton billbergianus, a sub-canopy tree that recruits in abundant small gaps, long-term persistence is associated with short-distance ballistic seed dispersal. In Trema micrantha, a canopy tree with widespread dispersal, persistence is associated with a requirement for large gaps that form infrequently in old-growth forest.

  2. R E V I E W Liana Impacts on Carbon Cycling, Storage and Sequestration in Tropical Forests

    E-Print Network [OSTI]

    Schnitzer, Stefan

    R E V I E W Liana Impacts on Carbon Cycling, Storage and Sequestration in Tropical Forests Geertje for carbon storage and sequestration. Lianas reduce tree growth, survival, and leaf productivity; however liana carbon stocks are unlikely to compensate for liana-induced losses in net carbon sequestration

  3. future science group 271ISSN 1758-300410.4155/CMT.10.30 European Union, 2010 Role of tropical deforestation in global

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    deforestation in global carbon emissions Tropical deforestation is estimated to total approxi- mately 13 million, the global rate of gross deforestation, mainly the conversion of tropical forests to agricultural land. Tropical deforestation, resulting from different causes [2­4], leads to emissions of CO2 and, if the bio

  4. Forests 2011, 2, 200-217; doi:10.3390/f2010200 ISSN 1999-4907

    E-Print Network [OSTI]

    . Introduction Tropical forests are threatened by the distinctly different processes of deforestation and forest degradation. While deforestation involves the conversion of forests to another land use type, degradation. In economic terms, deforestation tends to be associated with investments in other land uses, mainly

  5. The Big Trees Were Kings: Challenges for Global Response to Climate Change and Tropical Forests Loss

    E-Print Network [OSTI]

    Irland, Lloyd C.

    2010-01-01T23:59:59.000Z

    POPULATION PRESSURES ON FOREST 2008 Rank United States France Malaysia Brazil Guyana Mexico Suriname

  6. An Overview of World Tropical Hardwood Resources, Forest Products Trade and Environmental Issues

    E-Print Network [OSTI]

    , and Venezuela (Butler 2001). South America accounts for 23 percent of global forests (Juslin and Hansen 2003

  7. Characterization of Trapped Lignin-Degrading Microbes in Tropical...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Trapped Lignin-Degrading Microbes in Tropical Forest Soil. Characterization of Trapped Lignin-Degrading Microbes in Tropical Forest Soil. Abstract: Lignin is often the most...

  8. Conversion, Fragmentation,

    E-Print Network [OSTI]

    YFFReview Forestland Conversion, Fragmentation, and Parcelization A summary of a forum exploring our forests today. Development and economic pressures on private lands are driving conversion the complexity of factors influencing fragmentation--for example, historic land use planning policies

  9. E-Print Network 3.0 - afromontane tropical forest Sample Search...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    vegetation. Only... that it contributes to the conservation of the ... Source: Louisiana Forest Products Development Center Collection: Renewable Energy 4 Preview of...

  10. Modeling the age of tropical moist forest fragments in heavily-cleared lowland landscapes of Colombia

    E-Print Network [OSTI]

    Queensland, University of

    of Colombia Andres Etter a,b,c,*, Clive McAlpine a,b , David Pullar b , Hugh Possingham a a The Ecology Centre-00, Bogota´, Colombia Received 31 August 2004; received in revised form 7 December 2004; accepted 7 December deforestation; Forest fragment age; Land use drivers; Colombia www.elsevier.com/locate/foreco Forest Ecology

  11. Simulating the Long-term Response of Tropical Wet Forests to

    E-Print Network [OSTI]

    Chave, Jérôme

    abandoned. The simulated recovery time in those secondary forests depends on both the size of cleared area into rem- nants surrounded by secondary vegetation, land- use areas, or roads. It is important to develop of forest remnants. We also performed simula- tions of secondary succession after the landscape had been

  12. Using climate policies and carbon markets to save tropical forests : the case of Costa Rica

    E-Print Network [OSTI]

    Arpels, Marisa (Marisa Carina)

    2008-01-01T23:59:59.000Z

    In the late 1980s and early 1990s, advocates for forest conservation thought that climate change could provide a lever to motivate developing countries to reduce deforestation. Fifteen years after the first climate change ...

  13. Estimating aboveground biomass in forest and oil palm plantation in Sabah, Malaysian Borneo using ALOS PALSAR data

    E-Print Network [OSTI]

    Malhi, Yadvinder

    Estimating aboveground biomass in forest and oil palm plantation in Sabah, Malaysian Borneo using September 2011 Keywords: ALOS-PALSAR Land-cover monitoring Aboveground biomass Oil palm Borneo a b s t r a c t Conversion of tropical forests to oil palm plantations in Malaysia and Indonesia has resulted in large

  14. Culturing and direct PCR suggest prevalent host generalism among diverse fungal endophytes of tropical forest grasses

    E-Print Network [OSTI]

    Coley, Phyllis

    Culturing and direct PCR suggest prevalent host generalism among diverse fungal endophytes examining endophytic fungi associated with grasses (Poaceae) have focused on agronomically important species and forest-edge communities. To provide a broader context for understanding grass-endophyte associations we

  15. Measuring the Effect of Selective Logging on Tropical Forest-Atmosphere Exchange

    E-Print Network [OSTI]

    Goulden, Michael L.

    #12;Tower Measurements METEOROLOGY PAR (up/down) LiCor Quantum Solar Kipp & Zonen Net Radiation REBS Q flux sensors. Elevator #12;#12;Carbon Budget Ideally, the forest atmosphere coupling is 1-dimensional beneath the eddy flux sensors is measured via the mean profile of CO2. Averaging interval is of order 1

  16. Current and Future Carbon Budgets of Tropical Rain Forest: A Cross Scale Analysis. Final Report

    SciTech Connect (OSTI)

    Oberbauer, S. F.

    2004-01-16T23:59:59.000Z

    The goal of this project was to make a first assessment of the major carbon stocks and fluxes and their climatic determinants in a lowland neotropical rain forest, the La Selva Biological Station, Costa Rica. Our research design was based on the concurrent use of several of the best available approaches, so that data could be cross-validated. A major focus of our effort was to combine meteorological studies of whole-forest carbon exchange (eddy flux), with parallel independent measurements of key components of the forest carbon budget. The eddy flux system operated from February 1998 to February 2001. To obtain field data that could be scaled up to the landscape level, we monitored carbon stocks, net primary productivity components including tree growth and mortality, litterfall, woody debris production, root biomass, and soil respiration in a series of replicated plots stratified across the major environmental gradients of the forest. A second major focus of this project was on the stocks and changes of carbon in the soil. We used isotope studies and intensive monitoring to investigate soil organic stocks and the climate-driven variation of soil respiration down the soil profile, in a set of six 4m deep soil shafts stratified across the landscape. We measured short term tree growth, climate responses of sap flow, and phenology in a suite of ten canopy trees to develop individual models of tree growth to daytime weather variables.

  17. Report reveals dramatic decline in illegal logging in tropical forest nations

    E-Print Network [OSTI]

    ", total global production of illegal timber has fallen by 22 per cent since 2002. "Up to a billion in Space & Earth / Environment The most thorough assessment to date of the global fight against illegal the problem is having a dramatic and beneficial effect both on forest dependent communities and on the global

  18. Seasonal shift in the foraging niche of a tropical avian resident: resource competition at work?

    E-Print Network [OSTI]

    Jedlicka, J A; Greenberg, R; Perfecto, I; Philpottt, S M; Dietsch, T V

    2006-01-01T23:59:59.000Z

    and migrant birds in Campeche, Mexico. Tropical Ecology 22:a dry tropical forest in Campeche, Mexico and found that

  19. Land use, food production, and the future of tropical forest species in Ghana

    E-Print Network [OSTI]

    Phalan, Benjamin Timothy

    2010-07-06T23:59:59.000Z

    by discussions with Brigid Barry, David Bowden, Lauren Coad, Nigel Collar, Paul Donald, Rob Ewers, Vicky Jones, Val Kapos, Eric Keys, Deborah Lawrence, Tasso Leventis, Ken Norris, Debbie Pain, Hugo Rainey, B. L. Turner and Juliet Vickery. Thanks to John... in a wildlife protected area, although I ended up working only in forest reserves. I thank Moses Sam and Phil Marshall for interesting discussions, and Kofi Affum-Baffo, Francis Agurgo, Edward Obiaw and Oheneba Amponsah Agyemang of the Resource...

  20. Biodiversity Conservation in Tropical Agroecosystems

    E-Print Network [OSTI]

    Biodiversity Conservation in Tropical Agroecosystems A New Conservation Paradigm Ivette Perfectoa areas of the world. Although most ecologists con- cerned with biodiversity conservation would agree. This conclusion has major consequences for biodiversity con- servation in fragmented tropical forests

  1. Ecophysiology of forest and savanna vegetation

    E-Print Network [OSTI]

    Lloyd, J.; Goulden, M. L.; Ometto, J. P.; Patino, S.; Fyllas, N. M.; Quesada, C. A.

    2013-01-01T23:59:59.000Z

    Lowland vegetation of tropical South America—An overview, instate for tropical South America, Geophys. Res. Lett. , 30(dry seasonal forests of South America, Ann. Mo. Bot. Gard. ,

  2. BIOTROPICA 38(2): 267271 2006 10.1111/j.1744-7429.2006.00125.x Comparison Between Two Methods for Measuring Fruit Production in a Tropical Forest1

    E-Print Network [OSTI]

    Machado, Jose-Luis

    for Measuring Fruit Production in a Tropical Forest1 Angela Parrado-Rosselli2 Institute of Biodiversity´a, Colombia ABSTRACT We compared fruiting data derived simultaneously from fruit traps placed on the ground the canopy-surveyed plots were higher than fruit-trap estimates. Fruiting patterns obtained throughout both

  3. Patterns of water and heat flux across a biome gradient from tropical forest to savanna in Brazil

    E-Print Network [OSTI]

    2009-01-01T23:59:59.000Z

    stricto) in southeast Brasil, Biota Neotropica, 2(1). (forest of Mato Grosso, Brasil, Water Resour. Res. , 38(6),de Meteorol. , Bras?´lia, DF, Brasil. Miller, S. D. , M. L.

  4. Carbon finance, tropical forests and the state : governing international climate risk in the Democratic Republic of Congo

    E-Print Network [OSTI]

    Gray, Ian P

    2012-01-01T23:59:59.000Z

    This thesis examines how evolving norms of international climate change mitigation are translated into national forest governance policies and land management techniques in the Democratic Republic of Congo (DRC). The ...

  5. E-Print Network 3.0 - ambiente tropical um Sample Search Results

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Summary: and composition of fruit-feeding butterflies in tropical plantation forests. Biodiversity and Conservation. DOI... for biodiversity conservation in the tropics. Tree...

  6. amazonian forest regrowth: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    mortality, tropical forest, vegetation between remotely-sensed indices and forest inventory data on tree mortality. There were differences Malhi, Yadvinder 2 Plant species...

  7. amazonian forest culture: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    mortality, tropical forest, vegetation between remotely-sensed indices and forest inventory data on tree mortality. There were differences Malhi, Yadvinder 3 Effects of...

  8. amazonian forests implications: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    mortality, tropical forest, vegetation between remotely-sensed indices and forest inventory data on tree mortality. There were differences Malhi, Yadvinder 3 Effects of...

  9. Edge effects in a forest mosaic: implications for oak regeneration in the Highlands of Chiapas, Mexico. 

    E-Print Network [OSTI]

    López-Barrera, Fabiola

    Forest edges created by scattered-patch clear-cutting have become a common landscape feature in tropical montane forests, including pine-oak and evergreen cloud forests. Forest-edge-pasture gradients were characterised ...

  10. E-Print Network 3.0 - atlantic forest reserve Sample Search Results

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    plantations, nearly all in the Atlantic Forest biome. Trends... ... Source: Louisiana Forest Products Development Center Collection: Renewable Energy 11 Journal of Tropical...

  11. Tropical Forests in the Anthropocene

    E-Print Network [OSTI]

    Goldsmith, Greg

    for Sustainability, Rio de Janeiro, 22460-320, Brazil 5 Center for Energy, Environment, and Sustainability Stockholm Environment Institute, Stockholm 104 51, Sweden; email: toby.gardner@sei-international.org 3

  12. Investigating Tropical Deforestation Using Two-Stage Spatially Misaligned

    E-Print Network [OSTI]

    Silander Jr., John A.

    Investigating Tropical Deforestation Using Two-Stage Spatially Misaligned Regression Models Deepak Deforestation in the tropics has been a major concern in conservationscience for more than 20 years. Estimates of tropical deforestation over the past few decades have shown an alarming accelerationin forest lost. Concern

  13. Journal of Tropical Ecology (2008) 24:918. Copyright 2008 Cambridge University Press doi:10.1017/S0266467407004695 Printed in the United Kingdom

    E-Print Network [OSTI]

    Bermingham, Eldredge

    dynamics: a cross-site comparison in four lowland tropical forests Margaret R. Metz,1 , Liza S. Comita, Yu

  14. Presentation 2.6: Wood waste for energy: lessons learnt from tropical regions Paul Vantomme

    E-Print Network [OSTI]

    of forest products with more value adding, and promoting the use of wood waste to increase energy efficiency tropical timber trade · almost 80% of the world's tropical forests ITTO ­ Wood Waste for Energy Working and forest industries GhanaDevelopment of energy alternatives for the efficient utilization of wood

  15. Regional feedbacks among fire, climate, and tropical deforestation William A. Hoffmann1

    E-Print Network [OSTI]

    Jackson, Robert B.

    Regional feedbacks among fire, climate, and tropical deforestation William A. Hoffmann1 December 2003. [1] Numerous studies with general circulation models suggest that tropical deforestation can to estimate the effect of tropical deforestation on fire risk through the McArthur forest fire danger index

  16. E-Print Network 3.0 - atlantic forest sp Sample Search Results

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    search results for: atlantic forest sp Page: << < 1 2 3 4 5 > >> 1 Journal of Tropical Ecology (2002) 18:303307. Copyright 2002 Cambridge University Press Summary: : Atlantic...

  17. Predictable waves of sequential forest degradation and biodiversity loss spreading from an African city

    E-Print Network [OSTI]

    Vermont, University of

    - tainably reducing carbon storage and biodiversity. biodiversity conservation | carbon emissions | reducing, wood production, and biodiversity conservation. The impacts of individual forms of tropical forestPredictable waves of sequential forest degradation and biodiversity loss spreading from an African

  18. Gen. Tech. Rep. PSW-101 Berkeley, CA. Pacific Southwest Forest and Range Experiment Station, Forest Service, U.S. Department of Agriculture; 1987.

    E-Print Network [OSTI]

    Standiford, Richard B.

    development of many forest communities will lead to an extended transformation into highly flammable fire prevailing forest types in tropical and subtropical Asia. Relevant concepts of future wildland fire land accounted for 410 x 10 6 ha (FAO 1985). In most countries of the humid and dry tropics

  19. The steady-state mosaic of disturbance and succession across an old-growth Central Amazon forest landscape

    E-Print Network [OSTI]

    2013-01-01T23:59:59.000Z

    African jungle. Nature 457(7232): 2. Laurance WF, et al. (tropical forests. Nature 457(7232):1003–1006. 7. Coomes DA,

  20. The steady-state mosaic of disturbance and succession across an old-growth Central Amazon forest landscape

    E-Print Network [OSTI]

    Chambers, J.Q.

    2014-01-01T23:59:59.000Z

    African jungle. Nature 457(7232): 2. Laurance WF, et al. (tropical forests. Nature 457(7232):1003–1006. 7. Coomes DA,

  1. Tropical Forest Trust | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of InspectorConcentrating SolarElectric Coop, IncTipmontInformationKentucky) JumpCorpDist Jump to:Trinity

  2. Tropical Forest Foundation | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia:FAQ < RAPID Jump to:Seadov Pty LtdSteen,LtdInformation DixieTraverseEnergy. It is

  3. Ecotoxicology of tropical marine ecosystems

    SciTech Connect (OSTI)

    Peters, E.C. [Tetra Tech, Inc., Fairfax, VA (United States); Gassman, N.J.; Firman, J.C. [Univ. of Miami, FL (United States). Rosenstiel School of Marine and Atmospheric Science; Richmond, R.H. [Univ. of Guam, Mangilao (Guam). Marine Lab.; Power, E.A. [EVS Environment Consultants, Ltd., North Vancouver, British Columbia (Canada)

    1997-01-01T23:59:59.000Z

    The negative effects of chemical contaminants on tropical marine ecosystems are of increasing concern as human populations expand adjacent to these communities. Watershed streams and ground water carry a variety of chemicals from agricultural, industrial, and domestic activities, while winds and currents transport pollutants from atmospheric and oceanic sources to these coastal ecosystems. The implications of the limited information available on impacts of chemical stressors on mangrove forests, seagrass meadows, and coral reefs are discussed in the context of ecosystem management and ecological risk assessment. Three classes of pollutants have received attention: heavy metals, petroleum, and synthetic organics. Heavy metals have been detected in all three ecosystems, causing physiological stress, reduced reproductive success, and outright mortality in associated invertebrates and fishes. Oil spills have been responsible for the destruction of entire coastal shallow-water communities, with recovery requiring years. Herbicides are particularly detrimental to mangroves and seagrasses and adversely affect the animal-algal symbioses in corals. Pesticides interfere with chemical cues responsible for key biological processes, including reproduction and recruitment of a variety of organisms. Information is lacking with regard to long-term recovery, indicator species, and biomarkers for tropical communities. Critical areas that are beginning to be addressed include the development of appropriate benchmarks for risk assessment, baseline monitoring criteria, and effective management strategies to protect tropical marine ecosystems in the face of mounting anthropogenic disturbance.

  4. Are tropical fungal endophytes hyperdiverse? Fungal endophytes are ubiquitous fungi that inhabit healthy plant tissues without

    E-Print Network [OSTI]

    California at Berkeley, University of

    Are tropical fungal endophytes hyperdiverse? Abstract Fungal endophytes are ubiquitous fungi that inhabit healthy plant tissues without causing disease. Endophytes have been found in every plant species sites in a lowland, moist tropical forest of central Panama, we quantified endophyte colonization

  5. HYDROLOGY, HYDROCHEMISTRY AND IMPLICATIONS FOR WATER SUPPLY OF A CLOUD FOREST IN CENTRAL AMERICA

    E-Print Network [OSTI]

    Walter, M.Todd

    HYDROLOGY, HYDROCHEMISTRY AND IMPLICATIONS FOR WATER SUPPLY OF A CLOUD FOREST IN CENTRAL AMERICA Alonso Caballero #12;HYDROLOGY, HYDROCHEMISTRY AND IMPLICATIONS FOR WATER SUPPLY OF A CLOUD FOREST and dry periods. Consequently, the tropical hydrology of cloud-forest watersheds is not well studied

  6. Editorial Manager(tm) for Annals of Forest Science Manuscript Draft

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    forest structure, dynamics, matter and13 energy budgets and degradation, including in tropical contextsEditorial Manager(tm) for Annals of Forest Science Manuscript Draft Manuscript Number: Title: Linking canopy images to forest structural parameters: potential of a modeling framework Article Type

  7. Ocean thermal energy conversion plants : experimental and analytical study of mixing and recirculation

    E-Print Network [OSTI]

    Jirka, Gerhard H.

    Ocean thermal energy conversion (OTEC) is a method of generating power using the vertical temperature gradient of the tropical ocean as an energy source. Experimental and analytical studies have been carried out to determine ...

  8. Tropical Underdevelopment Jeffrey D. Sachs

    E-Print Network [OSTI]

    of mobilizing energy resources in tropical economies is emphasized as another significant contributor measure of economic development. Tropical and landlocked regions, by contrast ­ such as Bolivia, Chad

  9. The iron nutrition of tropical foliage plants

    E-Print Network [OSTI]

    Lang, Harvey Joe

    1986-01-01T23:59:59.000Z

    extraction of Fe from fresh leaves proved to be a good indicator of the Fe status of plants. It consistently gave higher correlations with chlorophyll concentration than other methods tested. Conversely, total Fe analysis on dried leaves did not always... resolve the correct Fe status of the plant. The studies also suggested that P and the ratio of P/0. 1 N HC1-Fe may be important parameters in the diagnosis of Fe status. In a screening of 11 tropical foliage plants, Ficus benj ami ha and Nephroiepi...

  10. Soil Taxonomy and Land Evaluationfor Forest Establishment1 HaruyoshiIkawa2

    E-Print Network [OSTI]

    Standiford, Richard B.

    Soil Taxonomy and Land Evaluationfor Forest Establishment1 HaruyoshiIkawa2 Abstract: Soil Taxonomy, the United States system of soil classification, can be used for land evaluation for selected purposes. One use is forest establish- ment in the tropics, andthe soil family category is especially

  11. High-resolution forest carbon stocks and emissions in Gregory P. Asnera,1

    E-Print Network [OSTI]

    Saleska, Scott

    carbon emissions by 47% over deforestation alone, and secondary regrowth provided an 18% offset againstHigh-resolution forest carbon stocks and emissions in the Amazon Gregory P. Asnera,1 , George V. N Deforestation and Degradation (REDD) depend on mapping and monitoring of tropical forest carbon stocks

  12. Beta diversity of frogs in the forests of New Guinea, Amazonia and Europe

    E-Print Network [OSTI]

    ORIGINAL ARTICLE Beta diversity of frogs in the forests of New Guinea, Amazonia and Europe are characterized by low beta diversity, both in tropical and in temperate areas. Location Lowland forests tracking. The community data were analysed for alpha and beta diversity. Results Local (alpha) diversity

  13. Basin-wide variations in Amazon forest structure and function are mediated by both soils and climate

    E-Print Network [OSTI]

    2012-01-01T23:59:59.000Z

    across lowland forests of Bolivia, Biotropica, 43, 405–413,Mercado, Santa Cruz, Bolivia 11 Smithsonian Institution,tropical for- est is in Bolivia), the study area of Toledo

  14. Photovoltaic Energy Conversion

    E-Print Network [OSTI]

    Glashausser, Charles

    Photovoltaic Energy Conversion Frank Zimmermann #12;Solar Electricity Generation Consumes no fuel Make solar cells more efficient Theoretical energy conversion efficiency limit of single junction warming and fossil fuel depletion problems! #12;Photovoltaics: Explosive Growth Sustained growth of 30

  15. Solar Thermoelectric Energy Conversion

    Broader source: Energy.gov (indexed) [DOE]

    SOLID-STATE SOLAR-THERMAL ENERGY CONVERSION CENTER NanoEngineering Group Solar Thermoelectric Energy Conversion Gang Chen, 1 Daniel Kraemer, 1 Bed Poudel, 2 Hsien-Ping Feng, 1 J....

  16. Congo cancels logging contracts, calls for sustainable forest management Congo cancels logging contracts, calls for sustainable forest management

    E-Print Network [OSTI]

    " according to a summary by the International Tropical Timber Organization (ITTO). The Congo basin is home from AFP. The announcement came at the "International conference on the sustainable management "include wildlife protection as a standard obligation of forest companies under all contracts." MONGABAY

  17. Tropical Limit in Statistical Physics

    E-Print Network [OSTI]

    M. Angelelli; B. Konopelchenko

    2015-02-04T23:59:59.000Z

    Tropical limit for macroscopic systems in equilibrium defined as the formal limit of Boltzmann constant k going to 0 is discussed. It is shown that such tropical limit is well-adapted to analyse properties of systems with highly degenerated energy levels, particularly of frustrated systems like spin ice and spin glasses. Tropical free energy is a piecewise linear function of temperature, tropical entropy is a piecewise constant function and the system has energy for which tropical Gibbs' probability has maximum. Properties of systems in the points of jump of entropy are studied. Systems with finite and infinitely many energy levels and phenomena of limiting temperatures are discussed.

  18. Meso-scale eects of tropical deforestation in Amazonia: preparatory LBA modelling studies

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Meso-scale eects of tropical deforestation in Amazonia: preparatory LBA modelling studies A. J forest is good, above deforested areas (pasture) poor. The models' underestimate of the temperature Modelling studies with general circulation models have shown that large-scale deforestation of the Amazon

  19. Ecological Modelling 185 (2005) 105131 Tropical deforestation in Madagascar: analysis using hierarchical,

    E-Print Network [OSTI]

    Silander Jr., John A.

    Ecological Modelling 185 (2005) 105­131 Tropical deforestation in Madagascar: analysis using­effect relationships for deforestation at various scales has proven difficult even when rates of deforestation appear approach to develop a novel deforestation model for the eastern wet forested zone of Madagascar, a global

  20. Forest Lifeautumn | winter 2004 the forest!

    E-Print Network [OSTI]

    Aberdeen Leeds Norwich Cardiff Southampton NEW FOREST POSTERN HILL FOREST OF DEAN THORPE WOODLANDForest Lifeautumn | winter 2004 F R E E Get fit in the forest! www.forestry.gov.uk #12;Inverness Birmingham Newcastle Glasgow Edinburgh Dundee Manchester Forest Life 2 From the tranquil setting of your own

  1. 3African Study Monographs, Suppl. 43: 3-14, March 2012 CENTRAL AFRICAN FORESTS AS HUNTER-GATHERERS'

    E-Print Network [OSTI]

    causes global warming by increasing the carbon dioxide in the atmosphere. These are issues for all human tropical forest block in the world after the Amazon. The forest in this region attracts global attention of the natural environment (OFAC, 2008). Thirdly, there is a growing interest in their global environmental

  2. Climate mitigation and the future of tropical landscapes

    SciTech Connect (OSTI)

    Thomson, Allison M.; Calvin, Katherine V.; Chini, Louise Parsons; Hurtt, George; Edmonds, James A.; Bond-Lamberty, Benjamin; Frolking, Steve; Wise, Marshall A.; Janetos, Anthony C.

    2010-11-16T23:59:59.000Z

    Land use change to meet 21st Century demands for food, fuel, and fiber will occur in the context of both a changing climate as well as societal efforts to mitigate climate change. This changing natural and human environment will have large consequences for forest resources, terrestrial carbon storage and emissions, and food and energy crop production over the next century. Any climate change mitigation policies enacted will change the environment under which land-use decisions are made and alter global land use change patterns. Here we use the GCAM integrated assessment model to explore how climate mitigation policies that achieve a climate stabilization at 4.5 W m-2 radiative forcing in 2100 and value carbon in terrestrial ecosystems interact with future agricultural productivity and food and energy demands to influence land use in the tropics. The regional land use results are downscaled from GCAM regions to produce gridded maps of tropical land use change. We find that tropical forests are preserved only in cases where a climate mitigation policy that values terrestrial carbon is in place, and crop productivity growth continues throughout the century. Crop productivity growth is also necessary to avoid large scale deforestation globally and enable the production of bioenergy crops. The terrestrial carbon pricing assumptions in GCAM are effective at avoiding deforestation even when cropland must expand to meet future food demand.

  3. Forest Resources and Management

    E-Print Network [OSTI]

    a sustainable bio-energy industry. Timber is an ideal construction material. Centre for Forest ResourcesForest Resources and Management Centre for The Centre for Forest Resources and Management aims the forest resource. Our aim is that British forests ­ from their creation to maturity and regeneration

  4. QUANTUM CONVERSION IN PHOTOSYNTHESIS

    E-Print Network [OSTI]

    Calvin, Melvin

    2008-01-01T23:59:59.000Z

    QUANTUM CONVERSION IN PHOTOSYNTHESIS Melvin Calvin Januaryas it occurs in modern photosynthesis can only take place inof the problem or photosynthesis, or any specific aspect of

  5. Colorado Statewide Forest Resource Assessment and Strategy

    E-Print Network [OSTI]

    Heritage Program Colorado Timber Industry Association Forest Energy Governor's Forest Health AdvisoryColorado Statewide Forest Resource Assessment and Strategy www.csfs.colostate.edu Colorado Forest Forestry? Forest Health, Forest Stewardship, Community Forestry, Rural ForestryForest Health, Forest

  6. Forest Conservation Act (Maryland)

    Broader source: Energy.gov [DOE]

    The main purpose of Maryland's Forest Conservation Act is to minimize the loss of Maryland's forest resources during land development by making the identification and protection of forests and...

  7. Uncompahgre Mesas Forest Restoration Project

    E-Print Network [OSTI]

    March 2010 Uncompahgre Mesas Forest Restoration Project Collaboration Case Study #12;Uncompahgre Mesas Forest Restoration Project 1 1 Colorado Forest Restoration Institute Collaboration Case Study: Uncompahgre Mesas Forest Restoration Project Corrie Knapp Prepared for the Colorado Forest Restoration

  8. EXPLORING TROPICAL FOREST EDGE EFFECTS ON ADJOINING COCOA AGRICULTURAL

    E-Print Network [OSTI]

    Malhi, Yadvinder

    assistance and encouragement throughout this year of studies in Oxford. God bless you all. #12;iv TABLE of the requirements of the degree of the Master of Science in Environmental Change and Management, University margin has environmental conditions suitable for cocoa growth and development, the decision regarding

  9. Drought sensitivity shapes species distribution patterns in tropical forests

    E-Print Network [OSTI]

    Coley, Phyllis

    . Engelbrecht1,2 , Liza S. Comita3 , Richard Condit1 , Thomas A. Kursar1,4 , Melvin T. Tyree1,5,6 , Benjamin L

  10. Effects of selective logging on tropical forest tree growth

    E-Print Network [OSTI]

    2008-01-01T23:59:59.000Z

    the Environment and Renewable Resources, Manaus, Amazonas,the Environment and Renewable Resources, Manaus, AM 69075-the Environment and Renewable Resources (IBAMA) and carried

  11. Averting biodiversity collapse in tropical forest protected areas

    E-Print Network [OSTI]

    Laurence, William F.

    2012-08-01T23:59:59.000Z

    ´xico, Veracruz 95701, Mexico. 13Columbia University, New York, New York 10027, USA. 14Nordic Foundation for Development and Ecology, DK-1159 Copenhagen, Denmark. 15Bart De Dijn Environmental Consultancy, Paramaribo, Suriname. 16Florida International University...Republic. 126University ofWashington, Seattle, Washington 98195, USA. 127PNG Institute of Biological Research, Goroka, Papua New Guinea. 128University of Suriname, Paramaribo, Suriname. 129113-3885 Richet Rd, Prince George, British Columbia V2K 2J2, Canada. 130...

  12. Nocturnal cold air drainage and pooling in a tropical forest

    E-Print Network [OSTI]

    Goulden, M. L.; Miller, S. D.; da Rocha, H. R.

    2006-01-01T23:59:59.000Z

    Measurements of carbon sequestration by long-term eddyof terrestrial carbon sequestration [Tans et al. , 1990].

  13. Characterization of Trapped Lignin-Degrading Microbes in Tropical Forest

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation Proposed New Substation SitesStandingtheir Atmospheric Impacts. |Characterization ofSoil. |

  14. Benefits of Tropical Forest Management Under the New Climate Change

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of InspectorConcentrating SolarElectricEnergyCTBarre Biomass Facility JumpBedfordBelize:

  15. Carbon emissions and sequestration in forests: Case studies from seven developing countries. Volume 4: Mexico: Draft

    SciTech Connect (OSTI)

    Makundi, W.; Sathaye, J. [eds.] [Lawrence Berkeley Lab., CA (United States); Cerutti, O.M.; Ordonez, M.J.; Minjarez, R.D. [Universidad Nacional Autonoma de Mexico, Mexico City (Mexico) Centro de Ecologia

    1992-08-01T23:59:59.000Z

    Estimates of carbon emissions from deforestation in Mexico are derived for the year 1985 and for two contrasting scenarios in 2025. Carbon emissions are calculated through an in-depth review of the existing information on forest cover deforestation mtes and area affected by forest fires as well as on forests` carbon-related biological characteristics. The analysis covers both tropical -- evergreen and deciduous -- and temperate -- coniferous and broadleaf -- closed forests. Emissions from the forest sector are also compared to those from energy and industry. Different policy options for promoting the sustainable management of forest resources in the country are discussed. The analysis indicates that approximately 804,000 hectares per year of closed forests suffered from major perturbations in the mid 1980`s in Mexico, leading to an annual deforestation mte of 668,000 hectares. Seventy five percent of total deforestation is concentrated in tropical forests. The resulting annual carbon balance is estimated in 53.4 million tons per year, and the net committed emissions in 45.5 million tons or 41% and 38%, respectively, of the country`s total for 1985--87. The annual carbon balance from the forest sector in 2025 is expected to decline to 16.5 million tons in the low emissions scenario and to 22.9 million tons in the high emissions scenario. Because of the large uncertainties in some of the primary sources of information, the stated figures should be taken as preliminary estimates.

  16. Carbon emissions and sequestration in forests: Case studies from seven developing countries

    SciTech Connect (OSTI)

    Makundi, W.; Sathaye, J. (eds.) (Lawrence Berkeley Lab., CA (United States)); Cerutti, O.M.; Ordonez, M.J.; Minjarez, R.D. (Universidad Nacional Autonoma de Mexico, Mexico City (Mexico) Centro de Ecologia)

    1992-08-01T23:59:59.000Z

    Estimates of carbon emissions from deforestation in Mexico are derived for the year 1985 and for two contrasting scenarios in 2025. Carbon emissions are calculated through an in-depth review of the existing information on forest cover deforestation mtes and area affected by forest fires as well as on forests' carbon-related biological characteristics. The analysis covers both tropical -- evergreen and deciduous -- and temperate -- coniferous and broadleaf -- closed forests. Emissions from the forest sector are also compared to those from energy and industry. Different policy options for promoting the sustainable management of forest resources in the country are discussed. The analysis indicates that approximately 804,000 hectares per year of closed forests suffered from major perturbations in the mid 1980's in Mexico, leading to an annual deforestation mte of 668,000 hectares. Seventy five percent of total deforestation is concentrated in tropical forests. The resulting annual carbon balance is estimated in 53.4 million tons per year, and the net committed emissions in 45.5 million tons or 41% and 38%, respectively, of the country's total for 1985--87. The annual carbon balance from the forest sector in 2025 is expected to decline to 16.5 million tons in the low emissions scenario and to 22.9 million tons in the high emissions scenario. Because of the large uncertainties in some of the primary sources of information, the stated figures should be taken as preliminary estimates.

  17. Solar Thermal Conversion

    SciTech Connect (OSTI)

    Kreith, F.; Meyer, R. T.

    1982-11-01T23:59:59.000Z

    The thermal conversion process of solar energy is based on well-known phenomena of heat transfer (Kreith 1976). In all thermal conversion processes, solar radiation is absorbed at the surface of a receiver, which contains or is in contact with flow passages through which a working fluid passes. As the receiver heats up, heat is transferred to the working fluid which may be air, water, oil, or a molten salt. The upper temperature that can be achieved in solar thermal conversion depends on the insolation, the degree to which the sunlight is concentrated, and the measures taken to reduce heat losses from the working fluid.

  18. Using mobile distributed pyrolysis facilities to deliver a forest residue resource for bio-fuel production.

    E-Print Network [OSTI]

    Brown, Duncan

    2013-01-01T23:59:59.000Z

    ??Distributed mobile conversion facilities using either fast pyrolysis or torrefaction processes can be used to convert forest residues to more energy dense substances (bio-oil, bio-slurry… (more)

  19. Object Closure Conversion * Neal Glew

    E-Print Network [OSTI]

    Glew, Neal

    of closure conversion. This paper argues that a direct formulation of object closure conversio* *n Object Closure Conversion * Neal into closed code and auxiliary data* * structures. Closure conversion has been extensively studied

  20. Statewide Forest Resource Strategy

    E-Print Network [OSTI]

    Resource Assessment (assessment). The assessment and strategy identify important forest lands and provideColorado Statewide Forest Resource Strategy #12;June 2010 Acknowledgments The Colorado State Forest Forest Resource Strategy. We also offer our thanks and acknowledgement to Greg Sundstrom, assistant staff

  1. DANISHBIOETHANOLCONCEPT Biomass conversion for

    E-Print Network [OSTI]

    DANISHBIOETHANOLCONCEPT Biomass conversion for transportation fuel Concept developed at RISÃ? and DTU Anne Belinda Thomsen (RISÃ?) Birgitte K. Ahring (DTU) #12;DANISHBIOETHANOLCONCEPT Biomass: Biogas #12;DANISHBIOETHANOLCONCEPT Pre-treatment Step Biomass is macerated The biomass is cut in small

  2. Conversion Plan | Department of Energy

    Broader source: Energy.gov (indexed) [DOE]

    document the conversion plan that clearly defines the system or project's conversion procedures; outlines the installation of new and converted filesdatabases; coordinates the...

  3. Structured luminescence conversion layer

    DOE Patents [OSTI]

    Berben, Dirk; Antoniadis, Homer; Jermann, Frank; Krummacher, Benjamin Claus; Von Malm, Norwin; Zachau, Martin

    2012-12-11T23:59:59.000Z

    An apparatus device such as a light source is disclosed which has an OLED device and a structured luminescence conversion layer deposited on the substrate or transparent electrode of said OLED device and on the exterior of said OLED device. The structured luminescence conversion layer contains regions such as color-changing and non-color-changing regions with particular shapes arranged in a particular pattern.

  4. United States Forest Service - Forest Service Environmental Appeals...

    Open Energy Info (EERE)

    Service - Forest Service Environmental Appeals Responses Jump to: navigation, search OpenEI Reference LibraryAdd to library Web Site: United States Forest Service - Forest Service...

  5. Copyrighted Material What Is Tropical Ecology?

    E-Print Network [OSTI]

    Landweber, Laura

    Copyrighted Material What Is Tropical Ecology? Asking the question, What is tropical ecology? may seem akin to asking questions such as, Who is buried in Grant's tomb? Tropical ecology is the study of the ecology of tropical regions. But so what? Consider these questions: First, what is ecology? What are its

  6. Abstract This paper examines farm and household characteristics associated with a rapid fertility decline in a forest frontier of the Ecuadorian Amazon.

    E-Print Network [OSTI]

    Lopez-Carr, David

    decline in a forest frontier of the Ecuadorian Amazon. The Amazon basin and other rainforests in the tropics are among the last frontiers in the ongoing global fertility transition. The pace of this transition along agricultural frontiers will likely have major implications for future forest transitions

  7. Digital optical conversion module

    DOE Patents [OSTI]

    Kotter, Dale K. (North Shelley, ID); Rankin, Richard A. (Ammon, ID)

    1991-02-26T23:59:59.000Z

    A digital optical conversion module used to convert an analog signal to a computer compatible digital signal including a voltage-to-frequency converter, frequency offset response circuitry, and an electrical-to-optical converter. Also used in conjunction with the digital optical conversion module is an optical link and an interface at the computer for converting the optical signal back to an electrical signal. Suitable for use in hostile environments having high levels of electromagnetic interference, the conversion module retains high resolution of the analog signal while eliminating the potential for errors due to noise and interference. The module can be used to link analog output scientific equipment such as an electrometer used with a mass spectrometer to a computer.

  8. Digital optical conversion module

    DOE Patents [OSTI]

    Kotter, D.K.; Rankin, R.A.

    1988-07-19T23:59:59.000Z

    A digital optical conversion module used to convert an analog signal to a computer compatible digital signal including a voltage-to-frequency converter, frequency offset response circuitry, and an electrical-to-optical converter. Also used in conjunction with the digital optical conversion module is an optical link and an interface at the computer for converting the optical signal back to an electrical signal. Suitable for use in hostile environments having high levels of electromagnetic interference, the conversion module retains high resolution of the analog signal while eliminating the potential for errors due to noise and interference. The module can be used to link analog output scientific equipment such as an electrometer used with a mass spectrometer to a computer. 2 figs.

  9. Forest Inventory and Analysis Research The Nation's Forest Census

    E-Print Network [OSTI]

    Forest Inventory and Analysis Research F I A The Nation's Forest Census The U.S. Forest Inventory Monitoring Symposium November 4, 2008 #12;Forest Inventory and Analysis Research F I A The Nation's Forest Census FIA Program Perspectives · Only comprehensive forest inventory for each of the 50 States, Puerto

  10. Campus Conversations: CLIMATE CHANGE

    E-Print Network [OSTI]

    Attari, Shahzeen Z.

    review and input from scholars with expertise in climate change and communication. #12; Welcome Thank youCampus Conversations: CLIMATE CHANGE AND THE CAMPUS Southwestern Pennsylvania Program booklet is an adaptation and updating of Global Warming and Climate Change, a brochure developed in 1994

  11. ENERGY CONVERSION Spring 2011

    E-Print Network [OSTI]

    Bahrami, Majid

    on energy storage devices Course Webpage: http://www.sfu.ca/~mbahrami/ENSC 461.htm Tutorials for this course. Lab information is posted on the website. Laboratory report requirements, background and a lab1 ENSC 461 ENERGY CONVERSION Spring 2011 Instructor: Dr. Majid Bahrami 4372 Email

  12. Solar energy conversion.

    SciTech Connect (OSTI)

    Crabtree, G. W.; Lewis, N. S. (Materials Science Division); (California Inst. of Tech.)

    2008-03-01T23:59:59.000Z

    If solar energy is to become a practical alternative to fossil fuels, we must have efficient ways to convert photons into electricity, fuel, and heat. The need for better conversion technologies is a driving force behind many recent developments in biology, materials, and especially nanoscience. The Sun has the enormous untapped potential to supply our growing energy needs. The barrier to greater use of the solar resource is its high cost relative to the cost of fossil fuels, although the disparity will decrease with the rising prices of fossil fuels and the rising costs of mitigating their impact on the environment and climate. The cost of solar energy is directly related to the low conversion efficiency, the modest energy density of solar radiation, and the costly materials currently required. The development of materials and methods to improve solar energy conversion is primarily a scientific challenge: Breakthroughs in fundamental understanding ought to enable marked progress. There is plenty of room for improvement, since photovoltaic conversion efficiencies for inexpensive organic and dye-sensitized solar cells are currently about 10% or less, the conversion efficiency of photosynthesis is less than 1%, and the best solar thermal efficiency is 30%. The theoretical limits suggest that we can do much better. Solar conversion is a young science. Its major growth began in the 1970s, spurred by the oil crisis that highlighted the pervasive importance of energy to our personal, social, economic, and political lives. In contrast, fossil-fuel science has developed over more than 250 years, stimulated by the Industrial Revolution and the promise of abundant fossil fuels. The science of thermodynamics, for example, is intimately intertwined with the development of the steam engine. The Carnot cycle, the mechanical equivalent of heat, and entropy all played starring roles in the development of thermodynamics and the technology of heat engines. Solar-energy science faces an equally rich future, with nanoscience enabling the discovery of the guiding principles of photonic energy conversion and their use in the development of cost-competitive new technologies.

  13. Protecting climate with forests.

    E-Print Network [OSTI]

    2008-01-01T23:59:59.000Z

    Changing feedbacks in the climate–biosphere system Front.313–32 Bonan G B 2008 Forests and climate change: forcings,feedbacks, and the climate benefits of forests Science

  14. Chesapeake Forest Lands (Maryland)

    Broader source: Energy.gov [DOE]

    The Chesapeake Forest Lands are most of the former land holdings of the Chesapeake Forest Products Company, which now includes more than 66,000 acres in five lower Eastern Shore counties. These...

  15. Forest Roads (Minnesota)

    Broader source: Energy.gov [DOE]

    Proposed forest roads must be approved and designated by the Commissioner of the Department of Natural Resources.

  16. International Conference MANAGING FORESTS

    E-Print Network [OSTI]

    Working Party 1.01.08 ­ Ecology and Silviculture of Spruces; co-hosted by the EU Interreg Project Forest of Alberta, Canada "Ecology and Silviculture of White Spruce in the Canadian Boreal Forest for Multiple Forest Integrity; Why Spruce is a Good Option" Kristina Blennow, SLU, Sweden "Perception of Risks

  17. Forest Research: Climate Change

    E-Print Network [OSTI]

    Forest Research: Climate Change projects Forest Research is part of the Forestry Commission of climate change-related research is wide-ranging, covering impact assessment and monitoring, adaptation around a quarter of its research budget with Forest Research on climate change and related programmes

  18. FOREST CERTIFICATION January 2008

    E-Print Network [OSTI]

    lead to a more efficient model to achieve and document high levels of forest stewardship by Oregon comes from well-managed forests. For wood products companies that do business with the likes of Home by the State of Oregon to be less competent or protective of forest resources than those landowners who become

  19. Montana Forest and Conservation

    E-Print Network [OSTI]

    Vonessen, Nikolaus

    Montana Forest and Conservation Experiment Station 2009/2010 #12;Director's Message Page 2 The Montana Forest and Conservation Experiment Station (MFCES) continues its proud history of serving forest types. Faculty researchers of MFCES and the College of Forestry and Conservation have revealed new

  20. Forest ecology Introduction

    E-Print Network [OSTI]

    Johnson, Edward A.

    Forest ecology Introduction Forest ecology is a part of ecology that is con- cerned with forests as opposed to grasslands, savan- nas, or tundra. Ecology is the study of the processes of interaction among organisms and between organ- isms and their environment. Ecology is often subdi- vided into physiological

  1. Ocean dynamics and thermodynamics in the tropical Indo- Pacific region

    E-Print Network [OSTI]

    Drushka, Kyla

    2011-01-01T23:59:59.000Z

    Pacific Oceans . . . . . . . . . . . . . . . . . . . . . . . . . . . . .currents in the tropical Pacific Ocean. J. Phys. Oceanogr. ,in the eastern tropical Pacific Ocean associated with the

  2. Midlevel Ventilation's Constraint on Tropical Cyclone Intensity

    E-Print Network [OSTI]

    Tang, Brian Hong-An

    Midlevel ventilation, or the flux of low-entropy air into the inner core of a tropical cyclone (TC), is a hypothesized mechanism by which environmental vertical wind shear can constrain a tropical cyclone’s intensity. An ...

  3. Elements of tropical Pacific decadal variability

    E-Print Network [OSTI]

    Fuckar, Neven-Stjepan

    2003-01-01T23:59:59.000Z

    potential to change the background state of the eastern tropical Pacific. Simultaneously, a redistribution of atmospheric vorticity in the western tropical Pacific affects isopycnal depth and therefore ocean thermal structure progressing the decadal change...

  4. 12.811 Tropical Meteorology, Spring 2005

    E-Print Network [OSTI]

    Emanuel, Kerry

    This course describes the behavior and dynamics of the tropical troposphere, from the large-scale energy balance down to cumulus convection and tropical cyclones. Topics include: Radiative-convective equilibrium; the Hadley ...

  5. Wind Energy Conversion Systems (Minnesota)

    Broader source: Energy.gov [DOE]

    This section distinguishes between large (capacity 5,000 kW or more) and small (capacity of less than 5,000 kW) wind energy conversion systems (WECS), and regulates the siting of large conversion...

  6. Wind energy conversion system

    DOE Patents [OSTI]

    Longrigg, Paul (Golden, CO)

    1987-01-01T23:59:59.000Z

    The wind energy conversion system includes a wind machine having a propeller connected to a generator of electric power, the propeller rotating the generator in response to force of an incident wind. The generator converts the power of the wind to electric power for use by an electric load. Circuitry for varying the duty factor of the generator output power is connected between the generator and the load to thereby alter a loading of the generator and the propeller by the electric load. Wind speed is sensed electro-optically to provide data of wind speed upwind of the propeller, to thereby permit tip speed ratio circuitry to operate the power control circuitry and thereby optimize the tip speed ratio by varying the loading of the propeller. Accordingly, the efficiency of the wind energy conversion system is maximized.

  7. Object Closure Conversion Cornell University

    E-Print Network [OSTI]

    Glew, Neal

    that a direct formulation of object closure conversion is interesting and gives further insight into generalObject Closure Conversion Neal Glew Cornell University 24 August 1999 Abstract An integral part of implementing functional languages is closure conversion--the process of converting code with free variables

  8. Conversion of Questionnaire Data

    SciTech Connect (OSTI)

    Powell, Danny H [ORNL] [ORNL; Elwood Jr, Robert H [ORNL] [ORNL

    2011-01-01T23:59:59.000Z

    During the survey, respondents are asked to provide qualitative answers (well, adequate, needs improvement) on how well material control and accountability (MC&A) functions are being performed. These responses can be used to develop failure probabilities for basic events performed during routine operation of the MC&A systems. The failure frequencies for individual events may be used to estimate total system effectiveness using a fault tree in a probabilistic risk analysis (PRA). Numeric risk values are required for the PRA fault tree calculations that are performed to evaluate system effectiveness. So, the performance ratings in the questionnaire must be converted to relative risk values for all of the basic MC&A tasks performed in the facility. If a specific material protection, control, and accountability (MPC&A) task is being performed at the 'perfect' level, the task is considered to have a near zero risk of failure. If the task is performed at a less than perfect level, the deficiency in performance represents some risk of failure for the event. As the degree of deficiency in performance increases, the risk of failure increases. If a task that should be performed is not being performed, that task is in a state of failure. The failure probabilities of all basic events contribute to the total system risk. Conversion of questionnaire MPC&A system performance data to numeric values is a separate function from the process of completing the questionnaire. When specific questions in the questionnaire are answered, the focus is on correctly assessing and reporting, in an adjectival manner, the actual performance of the related MC&A function. Prior to conversion, consideration should not be given to the numeric value that will be assigned during the conversion process. In the conversion process, adjectival responses to questions on system performance are quantified based on a log normal scale typically used in human error analysis (see A.D. Swain and H.E. Guttmann, 'Handbook of Human Reliability Analysis with Emphasis on Nuclear Power Plant Applications,' NUREG/CR-1278). This conversion produces the basic event risk of failure values required for the fault tree calculations. The fault tree is a deductive logic structure that corresponds to the operational nuclear MC&A system at a nuclear facility. The conventional Delphi process is a time-honored approach commonly used in the risk assessment field to extract numerical values for the failure rates of actions or activities when statistically significant data is absent.

  9. Tropical Fruit Ambrosia Makes 6 servings

    E-Print Network [OSTI]

    Florida, University of

    Tropical Fruit Ambrosia Makes 6 servings 1 jar (26 oz.) mixed tropical fruit, drained 1 large coconut Lettuce leaves Directions: 1. In a large bowl, combine the tropical fruit and banana. 2. In a small bowl, stir together the yogurt, lime zest, and lime juice until blended. 3. Spoon over the fruit

  10. Semiconductor Nanowires and Nanotubes for Energy Conversion

    E-Print Network [OSTI]

    Fardy, Melissa Anne

    2010-01-01T23:59:59.000Z

    Nanowires and Nanotubes for Energy Conversion By MelissaNanowires and Nanotubes for Energy Conversion by MelissaNanowires and Nanotubes for Energy Conversion by Melissa

  11. Sandia National Laboratories: Wavelength Conversion Materials

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    TechnologiesWavelength Conversion Materials Wavelength Conversion Materials Overview of SSL Wavelength Conversion Materials Rare-Earth Phosphors Inorganic phosphors doped with...

  12. OCEAN THERMAL ENERGY CONVERSION PROGRAMMATIC ENVIRONMENTAL ASSESSMENT

    E-Print Network [OSTI]

    Sands, M.Dale

    2013-01-01T23:59:59.000Z

    M.D. (editor) Ocean Thermal Energy Conversion (OTEC) Draftin Ocean Thermal Energy Conversion (OTEC) technology haveThe Ocean Thermal Energy Conversion (OTEC) 2rogrammatic

  13. Sandia National Laboratories: Wavelength Conversion Materials

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    EFRCOverviewWavelength Conversion Materials Wavelength Conversion Materials Overview of SSL Wavelength Conversion Materials Rare-Earth Phosphors Inorganic phosphors doped with...

  14. National Forest Land Scheme case study Kilfinan Community Forest Company

    E-Print Network [OSTI]

    ;The hill grazing land that became Acharossan Forest was acquired by the Forestry Commission in 1963National Forest Land Scheme case study Kilfinan Community Forest Company: Acharossan Forest The applicant Kilfinan Community Forest Company (KCFC) is a charitable company limited by guarantee established

  15. 1CHILE'S FRONTIER FORESTS: CONSERVING A GLOBAL TREASURE FRONTIER FORESTS

    E-Print Network [OSTI]

    1CHILE'S FRONTIER FORESTS: CONSERVING A GLOBAL TREASURE CHILE´S FRONTIER FORESTS: CONSERVING forests & people #12;2 CHILE'S FRONTIER FORESTS: CONSERVING A GLOBAL TREASURE REPORT PRODUCTION'S FRONTIER FORESTS: CONSERVING A GLOBAL TREASURE CONTENTSCONTENTS ACKNOWLEDGMENTS 5 FOREWORD 6 KEY FINDINGS 8

  16. 1CHILE'S FRONTIER FORESTS: CONSERVING A GLOBAL TREASURE FRONTIER FORESTS

    E-Print Network [OSTI]

    1CHILE'S FRONTIER FORESTS: CONSERVING A GLOBAL TREASURE CHILE´S FRONTIER FORESTS: CONSERVING forests & people http://pdf.wri.org/gfw_chile_full.pdf #12;2 CHILE'S FRONTIER FORESTS: CONSERVING A GLOBAL A CONSERVAR. ISBN: 1-56973-517-4 #12;3CHILE'S FRONTIER FORESTS: CONSERVING A GLOBAL TREASURE CONTENTSCONTENTS

  17. Tropical rainforest biodiversity: field and

    E-Print Network [OSTI]

    . The Udzungwas in particular, are one of the single, most important areas in Africa for biodiversity conservationTropical rainforest biodiversity: field and GIS tools for assessing, monitoring and mapping II with Tanzania National ParksTanzania National Parks andand Wildlife Conservation SocietyWildlife Conservation

  18. Zinc phosphate conversion coatings

    DOE Patents [OSTI]

    Sugama, Toshifumi (Wading River, NY)

    1997-01-01T23:59:59.000Z

    Zinc phosphate conversion coatings for producing metals which exhibit enhanced corrosion prevention characteristics are prepared by the addition of a transition-metal-compound promoter comprising a manganese, iron, cobalt, nickel, or copper compound and an electrolyte such as polyacrylic acid, polymethacrylic acid, polyitaconic acid and poly-L-glutamic acid to a phosphating solution. These coatings are further improved by the incorporation of Fe ions. Thermal treatment of zinc phosphate coatings to generate .alpha.-phase anhydrous zinc phosphate improves the corrosion prevention qualities of the resulting coated metal.

  19. Zinc phosphate conversion coatings

    DOE Patents [OSTI]

    Sugama, T.

    1997-02-18T23:59:59.000Z

    Zinc phosphate conversion coatings for producing metals which exhibit enhanced corrosion prevention characteristics are prepared by the addition of a transition-metal-compound promoter comprising a manganese, iron, cobalt, nickel, or copper compound and an electrolyte such as polyacrylic acid, polymethacrylic acid, polyitaconic acid and poly-L-glutamic acid to a phosphating solution. These coatings are further improved by the incorporation of Fe ions. Thermal treatment of zinc phosphate coatings to generate {alpha}-phase anhydrous zinc phosphate improves the corrosion prevention qualities of the resulting coated metal. 33 figs.

  20. Conversion of open lands to short-rotation woody biomass crops: site variability affects nitrogen cycling

    E-Print Network [OSTI]

    Turner, Monica G.

    · The importance of forests in global carbon and greenhouse emissions · Case Study on greenhouse gas emissions. 2 #12;Ecosystems - Management 3 Support Processes Soil Conversion Fuel DistribuKon End Use Biomass Produc1on: Model changes in C stocks

  1. Solar Thermoelectric Energy Conversion | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Solar Thermoelectric Energy Conversion Solar Thermoelectric Energy Conversion Efficiencies of different types of solar thermoelectric generators were predicted using theoretical...

  2. Energy conversion system

    DOE Patents [OSTI]

    Murphy, Lawrence M. (Lakewood, CO)

    1987-01-01T23:59:59.000Z

    The energy conversion system includes a photo-voltaic array for receiving solar radiation and converting such radiation to electrical energy. The photo-voltaic array is mounted on a stretched membrane that is held by a frame. Tracking means for orienting the photo-voltaic array in predetermined positions that provide optimal exposure to solar radiation cooperate with the frame. An enclosure formed of a radiation transmissible material includes an inside containment space that accommodates the photo-voltaic array on the stretched membrane, the frame and the tracking means, and forms a protective shield for all such components. The enclosure is preferably formed of a flexible inflatable material and maintains its preferred form, such as a dome, under the influence of a low air pressure furnished to the dome. Under this arrangement the energy conversion system is streamlined for minimizing wind resistance, sufficiently weatherproof for providing protection against weather hazards such as hail, capable of using diffused light, lightweight for low-cost construction, and operational with a minimal power draw.

  3. Energy conversion system

    DOE Patents [OSTI]

    Murphy, L.M.

    1985-09-16T23:59:59.000Z

    The energy conversion system includes a photo-voltaic array for receiving solar radiation and converting such radiation to electrical energy. The photo-voltaic array is mounted on a stretched membrane that is held by a frame. Tracking means for orienting the photo-voltaic array in predetermined positions that provide optimal exposure to solar radiation cooperate with the frame. An enclosure formed of a radiation transmissible material includes an inside containment space that accommodates the photo-voltaic array on the stretched membrane, the frame and the tracking means, and forms a protective shield for all such components. The enclosure is preferably formed of a flexible inflatable material and maintains its preferred form, such as a dome, under the influence of a low air pressure furnished to the dome. Under this arrangement the energy conversion system is streamlined for minimizing wind resistance, sufficiently weathproof for providing protection against weather hazards such as hail, capable of using diffused light, lightweight for low-cost construction and operational with a minimal power draw.

  4. Opportunities for Future Forest

    E-Print Network [OSTI]

    .V.Birnie * Forest Research 1 #12;This document has been prepared in accordance with the requirements of the ISO 9001

  5. Forest Road Building Regulations

    Broader source: Energy.gov [DOE]

    The Wisconsin Department of Natural Resources has regulations for building a forest road, if development requires one. Regulations include zoning ordinances and permits for stream crossing, grading...

  6. Foothills Model Forest Business Strategy

    E-Print Network [OSTI]

    Foothills Model Forest Business Strategy 2007 ­ 2012 November 2006 #12;Page ii TABLE OF CONTENTS FOOTHILLS MODEL FOREST Business Strategy for April 2007 to March 2012 1.0 INTRODUCTION....................................................................................................................... 4 2.4 Foothills Model Forest Values

  7. Colorado Statewide Forest Resource Assessment

    E-Print Network [OSTI]

    Colorado Statewide Forest Resource Assessment A Foundation for Strategic Discussion and Private Forestry Redesign Initiative 2 National Guidance for Statewide Forest Resource Assessments 4 The Colorado Statewide Resource Assessment and all appendices are available online on the Colorado State Forest

  8. 1. Introduction 1.1. Forest definitions

    E-Print Network [OSTI]

    Helsinki, University of

    forests), conifer high forest (24 %), coppice (11 %) and coppice with stan- dards (37 %). Most protected

  9. Wind energy conversion system

    SciTech Connect (OSTI)

    Longrigg, P.

    1987-03-17T23:59:59.000Z

    This patent describes a wind energy conversion system comprising: a propeller rotatable by force of wind; a generator of electricity mechanically coupled to the propeller for converting power of the wind to electric power for use by an electric load; means coupled between the generator and the electric load for varying the electric power drawn by the electric load to alter the electric loading of the generator; means for electro-optically sensing the speed of the wind at a location upwind from the propeller; and means coupled between the sensing means and the power varying means for operating the power varying means to adjust the electric load of the generator in accordance with a sensed value of wind speed to thereby obtain a desired ratio of wind speed to the speed of a tip of a blade of the propeller.

  10. Quantum optical waveform conversion

    E-Print Network [OSTI]

    D Kielpinski; JF Corney; HM Wiseman

    2010-10-11T23:59:59.000Z

    Currently proposed architectures for long-distance quantum communication rely on networks of quantum processors connected by optical communications channels [1,2]. The key resource for such networks is the entanglement of matter-based quantum systems with quantum optical fields for information transmission. The optical interaction bandwidth of these material systems is a tiny fraction of that available for optical communication, and the temporal shape of the quantum optical output pulse is often poorly suited for long-distance transmission. Here we demonstrate that nonlinear mixing of a quantum light pulse with a spectrally tailored classical field can compress the quantum pulse by more than a factor of 100 and flexibly reshape its temporal waveform, while preserving all quantum properties, including entanglement. Waveform conversion can be used with heralded arrays of quantum light emitters to enable quantum communication at the full data rate of optical telecommunications.

  11. FOREST CENTRE STORAGE BUILDING

    E-Print Network [OSTI]

    deYoung, Brad

    FOREST CENTRE STORAGE BUILDING 3 4 5 6 7 8 UniversityDr. 2 1 G r e n f e l l D r i v e MULTI PURPOSE COURT STUDENT RESIDENCES GREEN HOUSE STUDENT RESIDENCES STUDENT RESIDENCES RECPLEX STORAGE BUILDING STORAGE BUILDING LIBRARY & COMPUTING FINE ARTS FOREST CENTRE ARTS &SCIENCE BUILDING ARTS &SCIENCE

  12. Forests and historic environment

    E-Print Network [OSTI]

    Forests and historic environment UK Forestry Standard Guidelines #12;Key to symbols UKFS Reference number #12;Forests and historic environment Forestry Commission: Edinburgh UK Forestry Standard in any format or medium, under the terms of the Open Government Licence. To view this licence, visit: www

  13. International Conference MANAGING FORESTS

    E-Print Network [OSTI]

    of Edinburgh, UK 1600-1620 Early thinning of energy wood in dense mixtures of Norway spruce and birch Finland, Finland 1640-1700 Long term effect of silviculture measures on forest-floor under Norway spruce management. Kjell Andreassen, Norwegian Forest & Landscape Institute, Norway 1140-1200 Climate change

  14. Forest Service Research Note

    E-Print Network [OSTI]

    Standiford, Richard B.

    Hills fire of October 30-November 1, 1967 showing observation sites, Cleveland National Forest, southernU.S.O.A. Forest Service Research Note PSW-183 ABSTRACT: Two fires burned in the same area was rruch more disastrous than the Pine Hills fire of 1967. The earlier fire claimed 11 lives, and covered

  15. PACIFIC SOUTHWEST FOREST SERVICE

    E-Print Network [OSTI]

    Standiford, Richard B.

    1976 . Disturbance during logging stimulates re- generation of koa. USDA Forest Servo Res. Note PSW-306 and distribution of Acacia koa re- genera tion after logging were studied on a 500-acre (202-ha) tract of koa forest heavily infested with Passi- /1ora mol/issima vines on the island of Hawaii. Koa seedling density

  16. Tongass National Forest

    SciTech Connect (OSTI)

    Not Available

    1990-03-01T23:59:59.000Z

    Two long-term timber contracts in the Tongass National Forest require private companies to harvest prescribed amounts of timber within agreed upon time frames during the 50-year contract life. This report has reviewed the accuracy of Forest Service figures for the volume of timber actually harvested under the two contracts, timber deleted from the private companies' operating plans, and backlogged timber. The author was unable to verify the first two figures because the Forest Service had not complied with all of its internal controls and because documentation and records were incomplete. The author was able to verify the figure for backlogged timber. While the Forest Service has tried to better account for timber prepared for harvesting through improved internal controls, this report believes additional actions are needed to ensure that forest supervisors comply with the internal controls for documenting harvested timber volumes and the information needed to support and report changes in timber sale activities is accurately reported.

  17. 5, 35333559, 2005 Catalytic conversion

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    measurement technique, employing selective gas- phase catalytic conversion of methanol to formaldehyde it the second most abundant organic trace gas after methane. Methanol can play an important role in upper tropoACPD 5, 3533­3559, 2005 Catalytic conversion of methanol to formaldehyde S. J. Solomon et al. Title

  18. The Role of the Tropics in Abrupt Climate Changes

    SciTech Connect (OSTI)

    Fedorov, Alexey [Yale University] [Yale University

    2013-12-07T23:59:59.000Z

    Topics addressed include: abrupt climate changes and ocean circulation in the tropics; what controls the ocean thermal structure in the tropics; a permanent El Niño in paleoclimates; the energetics of the tropical ocean.

  19. Influence of Tropical Tropopause Layer Cooling on Atlantic Hurricane Activity

    E-Print Network [OSTI]

    Solomon, Susan

    Virtually all metrics of Atlantic tropical cyclone activity show substantial increases over the past two decades. It is argued here that cooling near the tropical tropopause and the associated decrease in tropical cyclone ...

  20. PACIFIC SOUTHWEST Forest and Range

    E-Print Network [OSTI]

    Standiford, Richard B.

    of forest stands is valuable for studies of the physical environment. Energy balance research centers on howPACIFIC SOUTHWEST Forest and Range Experiment Station FOREST SERVICE U.S. DEPARTMENT in relation to climatic and stand variables USDA FOREST SERVICE RESEARCH PAPER PSW- 71 /1971 #12;CONTENTS

  1. PACIFIC SOUTHWEST Forest and Range

    E-Print Network [OSTI]

    Standiford, Richard B.

    C. Hathaway, both of the Black Hills National Forest, Custer, South Dakota, provided the necessaryPACIFIC SOUTHWEST Forest and Range FOREST SERVICE U. S.DEPARTMENT OF AGRICULTURE P.O. BOX 245, BERKELEY, CALIFORNIA 94701 Experiment Station USDA FOREST SERVICE RESEARCH PAPER PSW- 96 /1973 #12;CONTENTS

  2. Howland Forest David Hollinger, USDA Forest Service

    E-Print Network [OSTI]

    ; · An old-growth forest is a unique ecological endpoint · Long-term record of carbon is on factors that regulate long term carbon storage · Infrastructure · Topography experiment (21 ha) Canopy application, 18 kg N ha-1 y-1 (NH4NO3) C Sequestration Assessed in 3 Ways: · Eddy

  3. Analysis of tropical radiative heating profiles: A comparison...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    tropical radiative heating profiles: A comparison of models and observations . Analysis of tropical radiative heating profiles: A comparison of models and observations . Abstract:...

  4. Functional structure of ant and termite assemblages in old growth forest, logged forest and oil palm plantation in Malaysian Borneo

    E-Print Network [OSTI]

    Luke, Sarah H.; Fayle, Tom M.; Eggleton, Paul; Turner, Edgar C.; Davies, Richard G.

    2014-07-30T23:59:59.000Z

    in varying stages of decay (e.g. dead wood, leaf litter and soil). They play major roles in processes such as decomposition, and nutrient and carbon cycling (Eggleton et al. 1997; Jones and Eggleton 2000; Donovan et al. 2001). Ants disperse seeds, assist soil... and accidental effects on soil and feedback loops. Appl Soil Ecol 32:153–164. doi:10.1016/j.apsoil.2005. 07.004 Klimes P, Idigel C, Rimandai M et al (2012) Why are there more arboreal ant species in primary than in secondary tropical forests? J Animal Ecol 81...

  5. Deposition of Nitric Acid and Reactive Nitrogen at Harvard Forest The hourly gas-phase HNO3 concentration was measured at the Harvard Forest

    E-Print Network [OSTI]

    Reactive nitrogen trace gas species play an important role in tropospheric photochemistry by stimulating gas-phase HNO3 concentration was measured at the Harvard Forest Environmental Measurement Site during radicals may be regenerated. Thus conversion of NOx radicals to HNO3 and subsequent deposition

  6. Tropical Western Pacific CART Site

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear SecurityTensile Strain Switched Ferromagnetism in Layered NbS2TopoPortalBRDF Effects inHeterogeneousTropical

  7. ORIGINAL ARTICLE Mitigation needs adaptation: Tropical forestry

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    ORIGINAL ARTICLE Mitigation needs adaptation: Tropical forestry and climate change Manuel R adapt to this change. This paper discusses how tropical forestry practices can contribute to maintaining Forestry Research, P.O. Box 6596 JKPWB, Jakarta 10065, Indonesia e-mail: m.guariguata@cgiar.org J. P

  8. Selecting a Consulting Forester

    E-Print Network [OSTI]

    Taylor, Eric; Foster, C. Darwin

    2005-10-19T23:59:59.000Z

    Landowners often need professional help after a weather-related disaster has damaged timber stands. A consulting forester can help a landowner develop management strategies that fit the landowner's objectives. This publication includes a checklist...

  9. HOOTS99 Preliminary Version Object Closure Conversion

    E-Print Network [OSTI]

    Glew, Neal

    classes is an exam* *ple of closure conversion. This paper argues that a direct formulation of object HOOTS99 Preliminary Version Object Closure Conversion __________________________________________________________________________ Abstract An integral part of implementing functional languages is closure conversion_the process

  10. OCEAN THERMAL ENERGY CONVERSION PROGRAMMATIC ENVIRONMENTAL ASSESSMENT

    E-Print Network [OSTI]

    Sands, M.Dale

    2013-01-01T23:59:59.000Z

    M.D. (editor) Ocean Thermal Energy Conversion (OTEC) Draftof ocean thermal energy conversion technology. U.S. Depart~June 1-11, 1980 OCEAN THERMAL ENERGY CONVERSION PROGRAMMATIC

  11. OCEAN THERMAL ENERGY CONVERSION PROGRAMMATIC ENVIRONMENTAL ASSESSMENT

    E-Print Network [OSTI]

    Sands, M.Dale

    2013-01-01T23:59:59.000Z

    M.D. (editor) Ocean Thermal Energy Conversion (OTEC) Draftr:he comnercialization of ocean thermal energy conversionJune 1-11, 1980 OCEAN THERMAL ENERGY CONVERSION PROGRAMMATIC

  12. OCEAN THERMAL ENERGY CONVERSION PROGRAMMATIC ENVIRONMENTAL ASSESSMENT

    E-Print Network [OSTI]

    Sands, M.Dale

    2013-01-01T23:59:59.000Z

    Sands, M.D. (editor) Ocean Thermal Energy Conversion (OTEC)r:he comnercialization of ocean thermal energy conversionJune 1-11, 1980 OCEAN THERMAL ENERGY CONVERSION PROGRAMMATIC

  13. Plasmonic conversion of solar energy

    E-Print Network [OSTI]

    Clavero, Cesar

    2014-01-01T23:59:59.000Z

    Basic Research Needs for Solar Energy Utilization, BasicS. Pillai and M. A. Green, Solar Energy Materials and SolarPlasmonic conversion of solar energy César Clavero Plasma

  14. Nanostructured High Temperature Bulk Thermoelectric Energy Conversion...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    High Temperature Bulk Thermoelectric Energy Conversion for Efficient Waste Heat Recovery Nanostructured High Temperature Bulk Thermoelectric Energy Conversion for Efficient Waste...

  15. Thermochemical Conversion | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: AlternativeEnvironment,Institutes and1Telework Telework The|Conversion Thermochemical Conversion

  16. Carbon emissions and sequestration in forests: Case studies from seven developing countries

    SciTech Connect (OSTI)

    Makundi, W.; Sathaye, J. (eds.) (Lawrence Berkeley Lab., CA (United States)); Ravindranath, N.H.; Somashekhar, B.S.; Gadgil, M. (Indian Inst. of Science, Bangalore, (India). Center for Ecological Sciences and ASTRA); Deying, Xu (Chinese Academy of Forestry, Beijing, (China). Research Inst. of Forestry)

    1992-08-01T23:59:59.000Z

    As part of the effort to understand the sources of carbon dioxide and other major greenhouse gases, the Tropical Forestry and Global Climate Change Research Network (F-7) was established. The countries taking part in the F-7 Network -- Brazil, China, India, Indonesia, Malaysia, Mexico, Nigeria and Thailand -- possess large tracts of tropical forests and together experience the bulk of large scale tropical deforestation. Integreation of work of indigenous researchers and institutions from the participating countries should allow for the gathering of on-site information into the more general and universally available base of knowledge. The information contained in this report represents the results of the first phase of the F-7 project, which had the explicit aim of providing quantitative data on forestry-related carbon emissions from India and China.

  17. 5 Putting Science into Action on Forest

    E-Print Network [OSTI]

    5 Putting Science into Action on Forest Service Lands William M. Block u.s. Forest Service, Rocky into Action on Forest Service Lands t':: Research and Development, National Forest Systems, State and Private Forestry, International Programs

  18. International Tropical Timber Organization (ITTO) International Organizations Center -5th Floor, Pacifico-Yokohama Market Information Service (MIS) 1-1-1 Minato-Mirai, Nishi-ku, Yokohama 220-0012, Japan

    E-Print Network [OSTI]

    and being emulated by other countries. Three logging companies in the country joined WWF's forest and trade an independent monitoring system in Peru to track illegal logging. In Japan, tropical log and sawnwood imports Headlines Cameroon benefits from processing policy 2 Three Cameroon companies join CAFTN 2 Malaysia extends

  19. ASEM Conference on Forests, forest governance and timber products trade

    E-Print Network [OSTI]

    and illegal logging: drivers for change in the forest sector Thang Hooi Chiew (ASEAN) "Promoting Forest Law Enforcement and Governance (FLEG) through the ASEAN Regional Knowledge Network on FLEG in ASEAN Member States) ­ Enhancing intra-and extra- ASEAN trade and competitiveness of ASEAN forest products Discussion 10:30 - 11

  20. Biochemical Conversion Pilot Plant (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2012-06-01T23:59:59.000Z

    This fact sheet provides information about Biochemical Conversion Pilot Plant capabilities and resources at NREL.

  1. HOOTS99 Preliminary Version Object Closure Conversion

    E-Print Network [OSTI]

    Glew, Neal

    is an example of closure conversion. This paper argues that a direct formulation of object closure conversionHOOTS99 Preliminary Version Object Closure Conversion Neal Glew 1 Department of Computer Science conversion--the process of converting code with free variables into closed code and auxiliary data structures

  2. Forest fires: from economic assessment

    E-Print Network [OSTI]

    Pettenella, Davide

    and increasing deadwood, increasing recreation activities in forests, climate change, ... ) need for multi and Merlo, 2005 - Mediterranean Forest Values:37-68 133 ha-1 (overall average value in 18 Mediterranean

  3. Carbon dioxide measurements in tropical east African biomes

    SciTech Connect (OSTI)

    Schnell, R.C.; Odh, S.A.; Njau, L.N.

    1981-06-20T23:59:59.000Z

    From January 1977 through May 1978 atmospheric CO/sub 2/ concentrations were measured hourly and/or continuously at bimonthly intervals over periods varying from 5 to 8 days at 10 different locations in Kenya, East Africa. During each of these periods, at least two, and in some cases five, vertical profile measurements of CO/sub 2/ concentrations were conducted above different biomes. A large diurnal CO/sub 2/ periodicity was observed over land, with daytime drawdowns to 322 ppm and nighttime buildups to more than 400 ppm observed in savannah regions. In and around tropical rain forests, drawdowns to 310 ppm and buildups to more than 400 ppm were regularly observed. On the higher reaches of Mount Kenya, the diurnal CO/sub 2/ cycle was considerably reduced in amplitude, with variations in the range of 2-6 ppm throughout the 16-month study period. On sunny days, the drawdown of CO/sub 2/ was measurable to heights of at least 4000 m above ground level. Other CO/sub 2/ measurements in air over the Indian Ocean (to distances of up to 450 km upwind of the coast) produced fairly consistent concentrations of about 328.5 ppm which did not fluctuate diurnally. The weekly mean CO/sub 2/ concentrations over Kenya appear to have a bimodal structure, with minima occurring in July and January. On the basis of the data collected during the study it appears likely that regular observations at a high-altitude station on Mount Kenya, either with flask sampling or continuous analyzer measurements, are likely to yield data useful for estimates of CO/sub 2/ concentration backgrounds and trends. Also, there is strong evidence that Mount Kenya would be a good location to measure large-scale interhemispheric CO/sub 2/ exchanges and provide a unique base from which to study the effects of the tropical biome on biogeochemical phenomena. 20 references, 12 figures, 2 tables.

  4. Majoring in Forest Resources & Conservation

    E-Print Network [OSTI]

    Hill, Jeffrey E.

    FOR 3153C Forest Ecology 3 credits FOR 4664 Sustainable Ecotourism Development 3 credits SWS 3022 and SWS

  5. ForestDevelopment Community Forestry

    E-Print Network [OSTI]

    Geldenhuys, Jaco

    in Africa as a basis for developing applied integrated, multiple use forest resource management for timber and non-timber forest products from these systems, and for forest rehabilitation af- ter degradation from to Fusarium circinatum. Forestry companies worldwide have tried to hybridise P. radiata with other Pinus

  6. Majoring in Forest Resources & Conservation

    E-Print Network [OSTI]

    Hill, Jeffrey E.

    and management. The program emphasizes sustainable, multiple-use management and includes substantial field work work, etc.) Fall FNR 4624C Field Operations for Management of Ecosystems 3 credits FNR 4660 NaturalMajoring in Forest Resources & Conservation Specialization: Forest Resource Management Forest

  7. 1111 Emulating Natural Forest Landscape

    E-Print Network [OSTI]

    Wright, Dawn Jeannine

    1111 1111 Emulating Natural Forest Landscape Disturbances Concepts and Applications Edited by AJITH forest landscape disturbances: concepts and applications / edited by Ajith H. Perera, LisaJ. Buse, THOMAS A. SPIES , and ETSUKO NONAKA Forest landscapes in the Oregon Coast Range have changed considerably

  8. National Forest Inventory of Great

    E-Print Network [OSTI]

    National Forest Inventory of Great Britain Survey Manual #12;2 Remember to Save your Edit Session Regularly, Validate the information and Backup the Data NFI Survey Manual National Forest Inventory Survey in the surveys contributes to the National Forest Inventory (NFI) of Great Britain. With the information from

  9. Mensuration protocol National Forest Inventory

    E-Print Network [OSTI]

    NFI: Mensuration protocol for the National Forest Inventory June 2010 E. D. Mackie, R. W. Matthews and A. Brewer1 FR Biometrics Division 1 IFOS, Forestry Commission #12;National Forest Inventory (NFI or square boundary. In the case of a section 2 #12;National Forest Inventory (NFI): Mensuration Protocol

  10. Research Report Forests and carbon

    E-Print Network [OSTI]

    , baseline, carbon, climate change mitigation, forestry, quality assurance, sequestration. FCRP013/FCResearch Report Forests and carbon: a review of additionality #12;#12;Forests and carbon: a review. ISBN 978-0-85538-816-4 Valatin, G. (2011). Forests and carbon: a review of additionality. Forestry

  11. The multiple vortex nature of tropical cyclogenesis

    E-Print Network [OSTI]

    Sippel, Jason Allen

    2005-02-17T23:59:59.000Z

    cells and vortices are the respective source of PV production and building blocks for the meso-?-scale vortices. Finally, this thesis discusses issues related to the multiple vortex nature of tropical cyclone formation. For instance, the tracking...

  12. Midlevel ventilation's constraint on tropical cyclone intensity

    E-Print Network [OSTI]

    Tang, Brian Hong-An

    2010-01-01T23:59:59.000Z

    Midlevel ventilation, or the flux of low-entropy air into the inner core of a tropical cyclone (TC), is a hypothesized mechanism by which environmental vertical wind shear can constrain a TC's intensity. An idealized ...

  13. Forest Biomass and Lignocellulosic Materials Forest-derived biopolymers lignin and cellulose

    E-Print Network [OSTI]

    Li, Mo

    Forest Biomass and Lignocellulosic Materials Forest-derived biopolymers lignin and cellulose of sustainable products such as nanocellulose and biocomposites from forest biomass; biorefining to develop high

  14. HELIOPHYSICS II. ENERGY CONVERSION PROCESSES

    E-Print Network [OSTI]

    Hudson, Hugh

    of a solar flare 11 2.3.1 Flare luminosity and mechanical energy 11 2.3.2 The impulsive phase (hard X with the term "solar flare" dominate our thinking about energy conversion from magnetic storage to other forms approaches to the problems involved in phys- ically characterizing the solar atmosphere; see also the lecture

  15. Energy Storage, Conversion and Utilization

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Energy Storage, Conversion and Utilization A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Al-Ghadhban, Samir - Electrical Engineering Department, King Fahd University of...

  16. Energy Conversion and Storage Program

    SciTech Connect (OSTI)

    Cairns, E.J.

    1992-03-01T23:59:59.000Z

    The Energy Conversion and Storage Program applies chemistry and materials science principles to solve problems in (1) production of new synthetic fuels, (2) development of high-performance rechargeable batteries and fuel cells, (3) development of advanced thermochemical processes for energy conversion, (4) characterization of complex chemical processes, and (5) application of novel materials for energy conversion and transmission. Projects focus on transport-process principles, chemical kinetics, thermodynamics, separation processes, organic and physical chemistry, novel materials, and advanced methods of analysis. Electrochemistry research aims to develop advanced power systems for electric vehicle and stationary energy storage applications. Topics include identification of new electrochemical couples for advanced rechargeable batteries, improvements in battery and fuel-cell materials, and the establishment of engineering principles applicable to electrochemical energy storage and conversion. Chemical Applications research includes topics such as separations, catalysis, fuels, and chemical analyses. Included in this program area are projects to develop improved, energy-efficient methods for processing waste streams from synfuel plants and coal gasifiers. Other research projects seek to identify and characterize the constituents of liquid fuel-system streams and to devise energy-efficient means for their separation. Materials Applications research includes the evaluation of the properties of advanced materials, as well as the development of novel preparation techniques. For example, the use of advanced techniques, such as sputtering and laser ablation, are being used to produce high-temperature superconducting films.

  17. MUTUAL CONVERSION SOLAR AND SIDEREAL

    E-Print Network [OSTI]

    Roegel, Denis

    TABLES FOR THE MUTUAL CONVERSION OF SOLAR AND SIDEREAL TIME BY EDWARD SANG, F.R.S.E. EDINBURGH in the third example. Sang converts 3.27 seconds of solar time into 3.26 seconds of sidereal time. But sidereal time elapses faster than solar time, and the correct value is 3.28 sec- onds. In the fourth example

  18. Ohio's Forests Resource Bulletin

    E-Print Network [OSTI]

    . Butler, Grant M. Domke, Douglas M. Griffith, Cassandra M. Kurtz, W. Keith Moser, Randall S. Morin, Mark D. Nelson, Rachel Riemann, and Christopher W. Woodall Contact Author: Richard Widmann, rwidmann Station, Amherst, MA. Grant M. Domke, Mark D. Nelson, and Christopher W. Woodall are research foresters

  19. Forest Landscape Description and

    E-Print Network [OSTI]

    Standiford, Richard B.

    Forest Landscape Description and Inventories a basis for landplanning and design Pacific Southwest landscape description and inventories ­ a basis for land plan- ning and design. Berkeley, Calif., Pacific SW. Illustrates their application in two inventories made to aid managers and landscape architects in planning

  20. Extension Note Forest Research

    E-Print Network [OSTI]

    -based harvesting systems led to the development of the "Site Degradation Guidelines for the Vancouver Forest Region to validate soil disturbance guidelines, were lacking at that time. Early attempts had been made to assess, and to measure tree growth over the longer term as an indication of site productivity. The first trial

  1. Influence of the tropical Atlantic versus the tropical Pacific on Caribbean rainfall

    E-Print Network [OSTI]

    Influence of the tropical Atlantic versus the tropical Pacific on Caribbean rainfall Michael A; published 20 September 2002. [1] The Caribbean rainfall season runs from May through November, with positive anomalies over a narrow latitudinal band (0°­20°N) being associated with enhanced Caribbean

  2. What is the National Forest Inventory? The National Forest Inventory is a record of key information about forests

    E-Print Network [OSTI]

    What is the National Forest Inventory? The National Forest Inventory is a record of key information is the information gathered? Data for the National Forest Inventory is being collected using ground surveys, aerial representative picture of the state of Britain's forests and woodland. National Forest Inventory #12;Has

  3. Report on Analysis of Forest Floor Bulk Density and Depth at the Savannah River Site.

    SciTech Connect (OSTI)

    Bernard R. Parresol

    2005-10-01T23:59:59.000Z

    The forest floor data from the Savannah River Site consists of two layers, the litter layer and the duff layer. The purpose for the study was to determine bulk density conversion factors to convert litter and duff depth values in inches to forest floor fuel values in tons per acre. The primary objective was to collect litter and duff samples to adequately characterize forest floor depth and bulk density for combinations of 4 common forest types (loblolly/slash pine, longleaf pine, pine and hardwood mix, upland hardwood), 3 age classes (5-20, 20-40, 40+ years old) and 3 categories of burning history (0-3, 3-10, 10+ years since last burn).

  4. MixedConifer Forests in Southwest Colorado

    E-Print Network [OSTI]

    April 2010 Mixed­Conifer Forests in Southwest Colorado A Summary of Existing Knowledge and Considerations for Restoration and Management #12;Mixed Conifer Forests in Southwest Colorado 1Mixed-Conifer Forests in Southwest Colorado 1 ABOUT THE COLORADO FOREST RESTORATION INSTITUTE The Colorado Forest

  5. Forests for People Access, recreation & tourism

    E-Print Network [OSTI]

    Strategy Forests for People Access, recreation & tourism on the national forest estate #12;#12;Access, recreation and tourism on the national forest estate | 3 Forests for People Access, recreation and tourism on the national forest estate Setting the scene Everyone has a right of responsible access

  6. A converse to Dye's theorem Greg Hjorthy

    E-Print Network [OSTI]

    Hjorth, Greg

    * A converse to Dye We show a converse to a consequence of the final strengthening of Dye's th* *eorem proved, measure preserving, and ergodic. Theorem 1.1(Dye; see [5], [6].) Any two ergodic, standard, measure

  7. Grounded Situation Models for Situated Conversational Assistants

    E-Print Network [OSTI]

    Mavridis, Nikolaos

    2007-01-01T23:59:59.000Z

    A Situated Conversational Assistant (SCA) is a system with sensing, acting and speech synthesis/recognition abilities, which engages in physically situated natural language conversation with human partners and assists them ...

  8. Method of determining forest production from remotely sensed forest parameters

    DOE Patents [OSTI]

    Corey, J.C.; Mackey, H.E. Jr.

    1987-08-31T23:59:59.000Z

    A method of determining forest production entirely from remotely sensed data in which remotely sensed multispectral scanner (MSS) data on forest 5 composition is combined with remotely sensed radar imaging data on forest stand biophysical parameters to provide a measure of forest production. A high correlation has been found to exist between the remotely sensed radar imaging data and on site measurements of biophysical 10 parameters such as stand height, diameter at breast height, total tree height, mean area per tree, and timber stand volume.

  9. Carbon emissions and sequestration in forests: Case studies from seven developing countries. Volume 3, India and China

    SciTech Connect (OSTI)

    Makundi, W.; Sathaye, J. [eds.] [Lawrence Berkeley Lab., CA (United States); Ravindranath, N.H.; Somashekhar, B.S.; Gadgil, M. [Indian Inst. of Science, Bangalore, (India). Center for Ecological Sciences and ASTRA; Deying, Xu [Chinese Academy of Forestry, Beijing, (China). Research Inst. of Forestry

    1992-08-01T23:59:59.000Z

    As part of the effort to understand the sources of carbon dioxide and other major greenhouse gases, the Tropical Forestry and Global Climate Change Research Network (F-7) was established. The countries taking part in the F-7 Network -- Brazil, China, India, Indonesia, Malaysia, Mexico, Nigeria and Thailand -- possess large tracts of tropical forests and together experience the bulk of large scale tropical deforestation. Integreation of work of indigenous researchers and institutions from the participating countries should allow for the gathering of on-site information into the more general and universally available base of knowledge. The information contained in this report represents the results of the first phase of the F-7 project, which had the explicit aim of providing quantitative data on forestry-related carbon emissions from India and China.

  10. Petar Ljusev SIngle Conversion stage AMplifier

    E-Print Network [OSTI]

    . The proposed SICAM solution strives for direct energy conversion from the mains to the audio outputPetar Ljusev SIngle Conversion stage AMplifier - SICAM PhD thesis, December 2005 #12;#12;To Elena of the project "SICAM - SIngle Conversion stage AMplifier", funded by the Danish Energy Authority under the EFP

  11. Data Conversion in Residue Number System

    E-Print Network [OSTI]

    Zilic, Zeljko

    for direct conversion when interaction with the real analog world is required. We first develop two efficient schemes for direct analog-to-residue conversion. Another efficient scheme for direct residue analogique réel est nécessaire. Nous dévelopons deux systèmes efficaces pour la conversion directe du domaine

  12. HOOTS99 Preliminary Version Object Closure Conversion

    E-Print Network [OSTI]

    Glew, Neal

    classes is an example of closure conversion. This paper argues that a direct formulation of object closureHOOTS99 Preliminary Version Object Closure Conversion Neal Glew 1 Department of Computer Science conversion---the process of converting code with free variables into closed code and auxiliary data

  13. GUIDED ANGLER FISH ANNUAL CONVERSION FACTORS

    E-Print Network [OSTI]

    GUIDED ANGLER FISH ANNUAL CONVERSION FACTORS FOR THE 2014 FISHING YEAR NOAA FISHERIES, ALASKA via the GAF electronic reporting system. If no GAF were harvested in a year, the conversion factor is the first calendar year that GAF regulations will be in effect. Therefore, the conversion factors are based

  14. DRAFT. ENVIRONMENTAL ASSESSMENT OCEAN THERMAL ENERGY CONVERSION (OTEC) PILOT PLANTS

    E-Print Network [OSTI]

    Sullivan, S.M.

    2014-01-01T23:59:59.000Z

    Commercial ocean thermal energy conversion ( OTEC) plants byand M.D. Sands. Ocean thermal energy conversion (OTEC) pilotfield of ocean thermal energy conversion discharges. I~. L.

  15. OCEAN THERMAL ENERGY CONVERSION (OTEC) PROGRAMMATIC ENVIRONMENTAL ANALYSIS

    E-Print Network [OSTI]

    Sands, M. D.

    2011-01-01T23:59:59.000Z

    of ocean thermal energy conversion technology. U.S. DOE.Open cycle ocean thermal energy conversion. A preliminaryof the Fifth Ocean Thermal Energy Conversion Conference,

  16. ENVIRONMENTAL ASSESSMENT OCEAN THERMAL ENERGY CONVERSION (OTEC) PILOT PLANTS

    E-Print Network [OSTI]

    Sullivan, S.M.

    2014-01-01T23:59:59.000Z

    Sands. 1980. Ocean thermal energy conversion (OTEC) pilotCommercial ocean thermal energy conversion (OTEC) plants byof the Fifth Ocean Thermal Energy Conversion Conference,

  17. Recycling of wasted energy : thermal to electrical energy conversion

    E-Print Network [OSTI]

    Lim, Hyuck

    2011-01-01T23:59:59.000Z

    Direct energy conversion ..developed. Typically, direct energy conversion is achievedTechnologies 1.2.1. Direct energy conversion In a direct

  18. ENVIRONMENTAL ASSESSMENT OCEAN THERMAL ENERGY CONVERSION (OTEC) PILOT PLANTS

    E-Print Network [OSTI]

    Sullivan, S.M.

    2014-01-01T23:59:59.000Z

    Fifth Ocean Thermal Energy Conversion Conference, FebruarySixth Ocean Thermal Energy Conversion Conference, June 19-Fifth Ocean Thermal Energy Conversion Conference, February

  19. DRAFT. ENVIRONMENTAL ASSESSMENT OCEAN THERMAL ENERGY CONVERSION (OTEC) PILOT PLANTS

    E-Print Network [OSTI]

    Sullivan, S.M.

    2014-01-01T23:59:59.000Z

    Fifth Ocean Thermal Energy Conversion Conference, Februarythe Sixth Ocean Thermal Energy Conversion Conference. OceanSixth Ocean Thermal Energy conversion Conference. June 19-

  20. OCEAN THERMAL ENERGY CONVERSION (OTEC) PROGRAMMATIC ENVIRONMENTAL ANALYSIS

    E-Print Network [OSTI]

    Sands, M. D.

    2011-01-01T23:59:59.000Z

    Fifth Ocean Thermal Energy Conversion Conference, FebruaryFifth Ocean Thermal Energy Conversion Conference, FebruarySixth Ocean Thermal Energy Conversion Conference. June 19-

  1. OCEAN THERMAL ENERGY CONVERSION: AN OVERALL ENVIRONMENTAL ASSESSMENT

    E-Print Network [OSTI]

    Sands, M.Dale

    2013-01-01T23:59:59.000Z

    1980 :. i l OCEAN THERMAL ENERGY CONVERSION: ENVIRONMENTALM.D. (editor). 1980. Ocean Thermal Energy Conversion DraftDevelopment Plan. Ocean Thermal Energy Conversion. U.S. DOE

  2. ENVIRONMENTAL ASSESSMENT OCEAN THERMAL ENERGY CONVERSION (OTEC) PILOT PLANTS

    E-Print Network [OSTI]

    Sullivan, S.M.

    2014-01-01T23:59:59.000Z

    Commercial ocean thermal energy conversion (OTEC) plants byof the Fifth Ocean Thermal Energy Conversion Conference,Sands. 1980. Ocean thermal energy conversion (OTEC) pilot

  3. OCEAN THERMAL ENERGY CONVERSION (OTEC) PROGRAMMATIC ENVIRONMENTAL ANALYSIS

    E-Print Network [OSTI]

    Sands, M. D.

    2011-01-01T23:59:59.000Z

    of ocean thermal energy conversion technology. U.S. DOE.Open cycle ocean thermal energy conversion. A preliminaryCompany. Ocean thermal energy conversion mission analysis

  4. DRAFT. ENVIRONMENTAL ASSESSMENT OCEAN THERMAL ENERGY CONVERSION (OTEC) PILOT PLANTS

    E-Print Network [OSTI]

    Sullivan, S.M.

    2014-01-01T23:59:59.000Z

    Commercial ocean thermal energy conversion ( OTEC) plants byfield of ocean thermal energy conversion discharges. I~. L.II of the Sixth Ocean Thermal Energy conversion Conference.

  5. ENVIRONMENTAL ASSESSMENT OCEAN THERMAL ENERGY CONVERSION (OTEC) PILOT PLANTS

    E-Print Network [OSTI]

    Sullivan, S.M.

    2014-01-01T23:59:59.000Z

    Commercial ocean thermal energy conversion (OTEC) plants bySands. 1980. Ocean thermal energy conversion (OTEC) pilotof the Ocean Thermal Energy Conversion (OTEC) Biofouling,

  6. OCEAN THERMAL ENERGY CONVERSION (OTEC) PROGRAMMATIC ENVIRONMENTAL ANALYSIS

    E-Print Network [OSTI]

    Sands, M. D.

    2011-01-01T23:59:59.000Z

    of the Ocean Thermal Energy Conversion (OTEC) Biofouling,development of ocean thermal energy conversion (OTEC) plant-impact assessment ocean thermal energy conversion (OTEC)

  7. DRAFT. ENVIRONMENTAL ASSESSMENT OCEAN THERMAL ENERGY CONVERSION (OTEC) PILOT PLANTS

    E-Print Network [OSTI]

    Sullivan, S.M.

    2014-01-01T23:59:59.000Z

    Commercial ocean thermal energy conversion ( OTEC) plants bySands. Ocean thermal energy conversion (OTEC) pilot plantof the Ocean Thermal Energy Conversion (OTEC) Biofouling,

  8. Next-Generation Thermionic Solar Energy Conversion | Department...

    Broader source: Energy.gov (indexed) [DOE]

    Next-Generation Thermionic Solar Energy Conversion Next-Generation Thermionic Solar Energy Conversion This fact sheet describes a next-generation thermionic solar energy conversion...

  9. DRAFT. ENVIRONMENTAL ASSESSMENT OCEAN THERMAL ENERGY CONVERSION (OTEC) PILOT PLANTS

    E-Print Network [OSTI]

    Sullivan, S.M.

    2014-01-01T23:59:59.000Z

    1979. Commercial ocean thermal energy conversion ( OTEC)field of ocean thermal energy conversion discharges. I~. L.II of the Sixth Ocean Thermal Energy conversion Conference.

  10. ENVIRONMENTAL ASSESSMENT OCEAN THERMAL ENERGY CONVERSION (OTEC) PILOT PLANTS

    E-Print Network [OSTI]

    Sullivan, S.M.

    2014-01-01T23:59:59.000Z

    1979. Commercial ocean thermal energy conversion (OTEC)of the Fifth Ocean Thermal Energy Conversion Conference,Sands. 1980. Ocean thermal energy conversion (OTEC) pilot

  11. OCEAN THERMAL ENERGY CONVERSION: AN OVERALL ENVIRONMENTAL ASSESSMENT

    E-Print Network [OSTI]

    Sands, M.Dale

    2013-01-01T23:59:59.000Z

    M.D. (editor). 1980. Ocean Thermal Energy Conversion Draft1980 :. i l OCEAN THERMAL ENERGY CONVERSION: ENVIRONMENTALDevelopment Plan. Ocean Thermal Energy Conversion. U.S. DOE

  12. OCEAN THERMAL ENERGY CONVERSION (OTEC) PROGRAMMATIC ENVIRONMENTAL ANALYSIS

    E-Print Network [OSTI]

    Sands, M. D.

    2011-01-01T23:59:59.000Z

    for the commercialization of ocean thermal energy conversionE. Hathaway. Open cycle ocean thermal energy conversion. AElectric Company. Ocean thermal energy conversion mission

  13. DRAFT. ENVIRONMENTAL ASSESSMENT OCEAN THERMAL ENERGY CONVERSION (OTEC) PILOT PLANTS

    E-Print Network [OSTI]

    Sullivan, S.M.

    2014-01-01T23:59:59.000Z

    1979. Commercial ocean thermal energy conversion ( OTEC)the intermediate field of ocean thermal energy conversionII of the Sixth Ocean Thermal Energy conversion Conference.

  14. ENVIRONMENTAL ASSESSMENT OCEAN THERMAL ENERGY CONVERSION (OTEC) PILOT PLANTS

    E-Print Network [OSTI]

    Sullivan, S.M.

    2014-01-01T23:59:59.000Z

    1979. Commercial ocean thermal energy conversion (OTEC)of the Fifth Ocean Thermal Energy Conversion Conference,and M.D. Sands. 1980. Ocean thermal energy conversion (OTEC)

  15. WMO/CAS/WWW SEVENTH INTERNATIONAL WORKSHOP ON TROPICAL CYCLONES

    E-Print Network [OSTI]

    Smith, Roger K.

    . As outlined by Dunkerton et al. (2009, hereafter DMW09), the problem of tropical cyclogenesis in the real

  16. High resolution A/D conversion based on piecewise conversion at lower resolution

    DOE Patents [OSTI]

    Terwilliger, Steve (Albuquerque, NM)

    2012-06-05T23:59:59.000Z

    Piecewise conversion of an analog input signal is performed utilizing a plurality of relatively lower bit resolution A/D conversions. The results of this piecewise conversion are interpreted to achieve a relatively higher bit resolution A/D conversion without sampling frequency penalty.

  17. Protection of Forest Resources (Montana)

    Broader source: Energy.gov [DOE]

    This statute addresses the conservation and protection of forest resources by encouraging the use of land management best practices pertaining to soil erosion, timber sale planning, associated road...

  18. Forests and The Texas Economy.

    E-Print Network [OSTI]

    Laughlin, Jay O'; Williams, Richard A.

    1988-01-01T23:59:59.000Z

    I UUL; Z TA24S.7 8873 NO.1S96 (Blank Page In -O~-.BilUetiBJ ' t '. ,-. "0: . : ?. FORESTS AND THE TEXAS ECONOMY by Jay O'Laughlin i\\ssociate Professor Texas i\\gricultural Experiment Station (Department of Forest Science) Texas i...\\&M University and Richard A. Williams Graduate Research i\\ssistant Texas i\\gricultural Experiment Station (Department of Forest Science) Texas i\\&M University The assistance and support of the Texas Forestry Association and the Texas Forest Service...

  19. Kelp Forests of the Santa Barbara Channel

    E-Print Network [OSTI]

    California at Santa Barbara, University of

    Kelp Forests of the Santa Barbara Channel Revised Fourth Edition Kelp Forests of the Santa Barbara Research Program Santa Barbara Coastal Long Term Ecological Research Program #12;Kelp Forests of the Santa

  20. Biomass thermochemical conversion program: 1987 annual report

    SciTech Connect (OSTI)

    Schiefelbein, G.F.; Stevens, D.J.; Gerber, M.A.

    1988-01-01T23:59:59.000Z

    The objective of the Biomass Thermochemical Conversion Program is to generate a base of scientific data and conversion process information that will lead to establishment of cost-effective processes for conversion of biomass resources into clean fuels. To accomplish this objective, in fiscal year 1987 the Thermochemical Conversion Program sponsored research activities in the following four areas: Liquid Hydrocarbon Fuels Technology; Gasification Technology; Direct Combustion Technology; Program Support Activities. In this report an overview of the Thermochemical Conversion Program is presented. Specific research projects are then described. Major accomplishments for 1987 are summarized.

  1. Biomass thermochemical conversion program. 1985 annual report

    SciTech Connect (OSTI)

    Schiefelbein, G.F.; Stevens, D.J.; Gerber, M.A.

    1986-01-01T23:59:59.000Z

    Wood and crop residues constitute a vast majority of the biomass feedstocks available for conversion, and thermochemical processes are well suited for conversion of these materials. The US Department of Energy (DOE) is sponsoring research on this conversion technology for renewable energy through its Biomass Thermochemical Conversion Program. The Program is part of DOE's Biofuels and Municipal Waste Technology Division, Office of Renewable Technologies. This report briefly describes the Thermochemical Conversion Program structure and summarizes the activities and major accomplishments during fiscal year 1985. 32 figs., 4 tabs.

  2. Conversion of raw carbonaceous fuels

    DOE Patents [OSTI]

    Cooper, John F. (Oakland, CA)

    2007-08-07T23:59:59.000Z

    Three configurations for an electrochemical cell are utilized to generate electric power from the reaction of oxygen or air with porous plates or particulates of carbon, arranged such that waste heat from the electrochemical cells is allowed to flow upwards through a storage chamber or port containing raw carbonaceous fuel. These configurations allow combining the separate processes of devolatilization, pyrolysis and electrochemical conversion of carbon to electric power into a single unit process, fed with raw fuel and exhausting high BTU gases, electric power, and substantially pure CO.sub.2 during operation.

  3. Conversion | National Nuclear Security Administration

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-Series to User GroupInformationE-Gov ContactsContractOffice ofConversion |

  4. Biochemical Conversion | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative FuelsBSCmemo.pdf BSCmemo.pdf BSCmemo.pdfBetter BuildingsBetter Plants»NewsConversion

  5. Alien plant invasions in tropical and sub-tropical savannas: patterns, processes and prospects

    E-Print Network [OSTI]

    Foxcroft, Llewellyn C.; Richardson, David M.; Rejmánek, Marcel; Pyšek, Petr

    2010-01-01T23:59:59.000Z

    Tanzania Species Family Alien plant invasions in savannasLo pez-Olmedo et al. 2007). Alien plant invasions in Africanspecies of naturalised alien plants for tropical savannas in

  6. Integration of Feedstock Assembly System and Cellulosic Ethanol Conversion Models to Analyze Bioenergy System Performance

    SciTech Connect (OSTI)

    Jared M. Abodeely; Douglas S. McCorkle; Kenneth M. Bryden; David J. Muth; Daniel Wendt; Kevin Kenney

    2010-09-01T23:59:59.000Z

    Research barriers continue to exist in all phases of the emerging cellulosic ethanol biorefining industry. These barriers include the identification and development of a sustainable and abundant biomass feedstock, the assembly of viable assembly systems formatting the feedstock and moving it from the field (e.g., the forest) to the biorefinery, and improving conversion technologies. Each of these phases of cellulosic ethanol production are fundamentally connected, but computational tools used to support and inform analysis within each phase remain largely disparate. This paper discusses the integration of a feedstock assembly system modeling toolkit and an Aspen Plus® conversion process model. Many important biomass feedstock characteristics, such as composition, moisture, particle size and distribution, ash content, etc. are impacted and most effectively managed within the assembly system, but generally come at an economic cost. This integration of the assembly system and the conversion process modeling tools will facilitate a seamless investigation of the assembly system conversion process interface. Through the integrated framework, the user can design the assembly system for a particular biorefinery by specifying location, feedstock, equipment, and unit operation specifications. The assembly system modeling toolkit then provides economic valuation, and detailed biomass feedstock composition and formatting information. This data is seamlessly and dynamically used to run the Aspen Plus® conversion process model. The model can then be used to investigate the design of systems for cellulosic ethanol production from field to final product.

  7. ARM - Black Forest News

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary)morphinanInformation Desert SouthwestTechnologies |NovemberARMContactsARM Engineering6,GermanyBlack Forest News

  8. Forest Carbon Cycle

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary)morphinanInformation Desert Southwest Region service area. TheEPSCI HomeTours, Programs and2FIRSTGuidelinesForest

  9. Climate Science: Tropical Expansion by Ocean Swing

    SciTech Connect (OSTI)

    Lu, Jian

    2014-04-01T23:59:59.000Z

    The tropical belt has become wider over the past decades, but climate models fall short of capturing the full rate of the expansion. The latest analysis of the climate simulations suggests that a long-term swing of the Pacific Decadal Oscillation is the main missing cause.

  10. Humboldt National Forest East Mormon

    E-Print Network [OSTI]

    Laughlin, Robert B.

    Humboldt National Forest Humboldt National Forest Millers Delamar Valley Dry Lake Dry Lake Valley Boundary Existing Designated Corridor (See Note 2) (As of 6/5/2009) Solar Energy Study Area (As of 6 14 16 Kilometers Carson City Ely Nevada Las Vegas Solar Energy Study Areas in Nevada Map Prepared

  11. COMMUNITY FORESTRY 24 Chartered Forester

    E-Print Network [OSTI]

    Forest Resource Assessment. The most recent one (2010) shows that although 80 per cent of the world- making, which in turn depend on community organisation, knowledge, power relations, external. They also train commune staff in technical forest management (Jeanrenaud, 2001). In Germany too

  12. 2011 Biomass Program Platform Peer Review: Thermochemical Conversion...

    Broader source: Energy.gov (indexed) [DOE]

    Thermochemical Conversion 2011 Biomass Program Platform Peer Review: Thermochemical Conversion "This document summarizes the recommendations and evaluations provided by an...

  13. Experimentally testing and assessing the predictive power of species assembly rules for tropical canopy ants

    E-Print Network [OSTI]

    Fayle, Tom M.; Eggleton, Paul; Manica, Andrea; Yusah, Kalsum M.; Foster, William A.

    2015-01-27T23:59:59.000Z

    to be sufficient to stabilise this quantity for all assembly rules of interest (with the exception of the null rule, which is, by definition, stochastic). To avoid gradual reduction of diversity due to local extinction of species, we reintroduced extinct species... ). The impact of forest conversion to oil palm on arthropod abundance and biomass in Sabah, Malaysia. J. Trop. Ecol., 25, 23–30. Turner, E.C., Snaddon, J.L., Johnson, H.R. & Foster, W.A. (2007). The impact of bird’s nest ferns on stemflow nutrient concentration...

  14. Microturbine Power Conversion Technology Review

    SciTech Connect (OSTI)

    Staunton, R.H.

    2003-07-21T23:59:59.000Z

    In this study, the Oak Ridge National Laboratory (ORNL) is performing a technology review to assess the market for commercially available power electronic converters that can be used to connect microturbines to either the electric grid or local loads. The intent of the review is to facilitate an assessment of the present status of marketed power conversion technology to determine how versatile the designs are for potentially providing different services to the grid based on changes in market direction, new industry standards, and the critical needs of the local service provider. The project includes data gathering efforts and documentation of the state-of-the-art design approaches that are being used by microturbine manufacturers in their power conversion electronics development and refinement. This project task entails a review of power converters used in microturbines sized between 20 kW and 1 MW. The power converters permit microturbine generators, with their non-synchronous, high frequency output, to interface with the grid or local loads. The power converters produce 50- to 60-Hz power that can be used for local loads or, using interface electronics, synchronized for connection to the local feeder and/or microgrid. The power electronics enable operation in a stand-alone mode as a voltage source or in grid-connect mode as a current source. Some microturbines are designed to automatically switch between the two modes. The information obtained in this data gathering effort will provide a basis for determining how close the microturbine industry is to providing services such as voltage regulation, combined control of both voltage and current, fast/seamless mode transfers, enhanced reliability, reduced cost converters, reactive power supply, power quality, and other ancillary services. Some power quality improvements will require the addition of storage devices; therefore, the task should also determine what must be done to enable the power conversion circuits to accept a varying dc voltage source. The study will also look at technical issues pertaining to the interconnection and coordinated/compatible operation of multiple microturbines. It is important to know today if modifications to provide improved operation and additional services will entail complete redesign, selected component changes, software modifications, or the addition of power storage devices. This project is designed to provide a strong technical foundation for determining present technical needs and identifying recommendations for future work.

  15. Measuring forest structure and biomass in New England forest stands using Echidna ground-based lidar

    E-Print Network [OSTI]

    Ni-Meister, Wenge

    Measuring forest structure and biomass in New England forest stands using Echidna ground Accepted 12 March 2010 Available online 14 May 2011 Keywords: Ground-based lidar Forest structure Biomass biomass with very good accuracy in six New England hardwood and conifer forest stands. Comparing forest

  16. For Immediate Release: January 30, 2008 Sustaining Virginia's Forests through Forest Certification

    E-Print Network [OSTI]

    and products processed in ways that sustain forest health, minimize energy wastes, follow local lawsFor Immediate Release: January 30, 2008 Sustaining Virginia's Forests through Forest Certification of the Forest Issues Working Group Virginia Conservation Network (http://www.vcnva.org/) Forests contribute

  17. Power conversion apparatus and method

    DOE Patents [OSTI]

    Su, Gui-Jia (Knoxville, TN)

    2012-02-07T23:59:59.000Z

    A power conversion apparatus includes an interfacing circuit that enables a current source inverter to operate from a voltage energy storage device (voltage source), such as a battery, ultracapacitor or fuel cell. The interfacing circuit, also referred to as a voltage-to-current converter, transforms the voltage source into a current source that feeds a DC current to a current source inverter. The voltage-to-current converter also provides means for controlling and maintaining a constant DC bus current that supplies the current source inverter. The voltage-to-current converter also enables the current source inverter to charge the voltage energy storage device, such as during dynamic braking of a hybrid electric vehicle, without the need of reversing the direction of the DC bus current.

  18. Forest Research Much more than trees

    E-Print Network [OSTI]

    justice to renewable energy and land use. We have teams of experts in the areas of forest sciencesForest Research Much more than trees #12;Welcome to Forest Research. We are the research agency and supplying scientific evidence on the human, ecological and economic aspects of sustainable forest management

  19. See Map 143 (A) Forest Hill

    E-Print Network [OSTI]

    Greenslade, Diana

    Warwick Wiangaree Beenleigh Toowoomba Cleveland Redcliffe Urbenville Woodenbone Beaudesert Forest Hill

  20. UK Forestry Standard Guidelines Forests and people

    E-Print Network [OSTI]

    UK Forestry Standard Guidelines Forests and people #12;Key to symbols UKFS Requirements for sustainable forest management Element of SFM Reference number Good forestry practice requirement Reference #12;UK Forestry Standard Guidelines Forests and people Forestry Commission: Edinburgh #12;ii Forests

  1. NREL: Biomass Research - Biochemical Conversion Projects

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    NREL's projects in biochemical conversion involve three basic steps to convert biomass feedstocks to fuels: Converting biomass to sugar or other fermentation feedstock...

  2. Automotive Waste Heat Conversion to Power Program

    Broader source: Energy.gov (indexed) [DOE]

    or otherwise restricted information Project ID ace47lagrandeur Automotive Waste Heat Conversion to Power Program- 2009 Hydrogen Program and Vehicle Technologies Program...

  3. Automotive Waste Heat Conversion to Power Program

    Broader source: Energy.gov (indexed) [DOE]

    Start Date: Oct '04 Program End date: Oct '10 Percent Complete: 80% 2 Automotive Waste Heat Conversion to Power Program- Vehicle Technologies Program Annual Merit Review- June...

  4. Landholders, Residential Land Conversion, and Market Signals

    E-Print Network [OSTI]

    Margulis, Harry L.

    2006-01-01T23:59:59.000Z

    465– Margulis: Landholders, Residential Land Conversion, and1983. An Analysis of Residential Developer Location FactorsHow Regulation Affects New Residential Development. New

  5. Next-Generation Thermionic Solar Energy Conversion

    Broader source: Energy.gov (indexed) [DOE]

    Microscale-enhanced thermionic emitters will enable high-efficiency, solar-to-electrical conversion by taking advantage of both heat and light. Image from Stanford University...

  6. "Approaches to Ultrahigh Efficiency Solar Energy Conversion"...

    Office of Science (SC) Website

    "Approaches to Ultrahigh Efficiency Solar Energy Conversion" Webinar Energy Frontier Research Centers (EFRCs) EFRCs Home Centers Research Science Highlights News & Events EFRC News...

  7. "Fundamental Challenges in Solar Energy Conversion" workshop...

    Office of Science (SC) Website

    Fundamental Challenges in Solar Energy Conversion" workshop hosted by LMI-EFRC Energy Frontier Research Centers (EFRCs) EFRCs Home Centers Research Science Highlights News & Events...

  8. Conversion Technologies for Advanced Biofuels - Carbohydrates...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Production Conversion Technologies for Advanced Biofuels - Carbohydrates Production Purdue University report-out presentation at the CTAB webinar on Carbohydrates Production....

  9. Conversion Technologies for Advanced Biofuels - Carbohydrates...

    Energy Savers [EERE]

    Upgrading Conversion Technologies for Advanced Biofuels - Carbohydrates Upgrading PNNL report-out presentation at the CTAB webinar on carbohydrates upgrading. ctabwebinarcarbohyd...

  10. LED Street Lighting Conversion Workshop Presentations

    Broader source: Energy.gov [DOE]

    This page provides links to the presentations given at the National League of Cities Mobile Workshop, LED Street Lighting Conversion: Saving Your Community Money, While Improving Public Safety,...

  11. Introduction to Solar Photon Conversion

    SciTech Connect (OSTI)

    Nozik, A.; Miller, J.

    2010-11-10T23:59:59.000Z

    The efficient and cost-effective direct conversion of solar photons into solar electricity and solar fuels is one of the most important scientific and technological challenges of this century. It is estimated that at least 20 terawatts of carbon-free energy (1 and 1/2 times the total amount of all forms of energy consumed today globally), in the form of electricity and liquid and gaseous fuels, will be required by 2050 in order to avoid the most serious consequences of global climate change and to ensure adequate global energy supply that will avoid economic chaos. But in order for solar energy to contribute a major fraction of future carbon-free energy supplies, it must be priced competitively with, or perhaps even be less costly than, energy from fossil fuels and nuclear power as well as other renewable energy resources. The challenge of delivering very low-cost solar fuels and electricity will require groundbreaking advances in both fundamental and applied science. This Thematic Issue on Solar Photon Conversion will provide a review by leading researchers on the present status and prognosis of the science and technology of direct solar photoconversion to electricity and fuels. The topics covered include advanced and novel concepts for low-cost photovoltaic (PV) energy based on chemistry (dye-sensitized photoelectrodes, organic and molecular PV, multiple exciton generation in quantum dots, singlet fission), solar water splitting, redox catalysis for water oxidation and reduction, the role of nanoscience and nanocrystals in solar photoconversion, photoelectrochemical energy conversion, and photoinduced electron transfer. The direct conversion of solar photons to electricity via photovoltaic (PV) cells is a vital present-day commercial industry, with PV module production growing at about 75%/year over the past 3 years. However, the total installed yearly averaged energy capacity at the end of 2009 was about 7 GW-year (0.2% of global electricity usage). Thus, there is potential for the PV industry to grow enormously in the future (by factors of 100-300) in order for it to provide a significant fraction of total global electricity needs (currently about 3.5 TW). Such growth will be greatly facilitated by, and probably even require, major advances in the conversion efficiency and cost reduction for PV cells and modules; such advances will depend upon advances in PV science and technology, and these approaches are discussed in this Thematic Issue. Industrial and domestic electricity utilization accounts for only about 30% of the total energy consumed globally. Most ({approx}70%) of our energy consumption is in the form of liquid and gaseous fuels. Presently, solar-derived fuels are produced from biomass (labeled as biofuels) and are generated through biological photosynthesis. The global production of liquid biofuels in 2009 was about 1.6 million barrels/day, equivalent to a yearly output of about 2.5 EJ (about 1.3% of global liquid fuel utilization). The direct conversion of solar photons to fuels produces high-energy chemical products that are labeled as solar fuels; these can be produced through nonbiological approaches, generally called artificial photosynthesis. The feedstocks for artificial photosynthesis are H{sub 2}O and CO{sub 2}, either reacting as coupled oxidation-reduction reactions, as in biological photosynthesis, or by first splitting H{sub 2}O into H{sub 2} and O{sub 2} and then reacting the solar H{sub 2} with CO{sub 2} (or CO produced from CO2) in a second step to produce fuels through various well-known chemical routes involving syngas, water gas shift, and alcohol synthesis; in some applications, the generated solar H{sub 2} itself can be used as an excellent gaseous fuel, for example, in fuel cells. But at the present time, there is no solar fuels industry. Much research and development are required to create a solar fuels industry, and this Thematic Issue presents several reviews on the relevant solar fuels science and technology. The first three manuscripts relate to the daunting problem of producing

  12. ADVANCED TROPICAL METEOROLOGY: METR 5453.001 T R 11:30-12:45, NWC 5820

    E-Print Network [OSTI]

    Droegemeier, Kelvin K.

    and their limitations. - Why study the tropics separately? Examples of major tropical circulations on weather. - Easterly waves. 5. Tropical Cyclones What are they? How do they differ from extratropical cyclones cyclones: operations and research. - Predictability aspects of tropical cyclones. - Tropical cyclones

  13. Experiment to Characterize Tropical Cloud Systems

    SciTech Connect (OSTI)

    May, Peter T.; Mather, Jim H.; Jakob, Christian

    2005-08-02T23:59:59.000Z

    A major experiment to study tropical convective cloud systems and their impacts will take place around Darwin, Northern Australia in early 2006. The Tropical Warm Pool International Cloud Experiment (TWP-ICE) is a collaboration including the DOE ARM (Atmospheric Radiation Measurement) and ARM-UAV programs, NASA centers, the Australian Bureau of Meteorology, CSIRO, and universities in the USA, Australia, Japan, the UK, and Canada. TWP-ICE will be preceded in November/December 2004 by a collaborating European aircraft campaign involving the EU SCOUT-O3 and UK NERC ACTIVE projects. Detailed atmospheric measurements will be made in the Darwin area through the whole Austral summer, giving unprecedented coverage through the pre-monsoon and monsoon periods.

  14. Cost-efficient conservation strategies for boreal forest biodiversity.

    E-Print Network [OSTI]

    Perhans, Karin

    2008-01-01T23:59:59.000Z

    ??Long and intensive forest management has made conservation measures in the forest landscape necessary to maintain forest biodiversity. The most common measure is to set… (more)

  15. Framing the Conversation: The Role of Facebook Conversations in Shopping for Eyeglasses

    E-Print Network [OSTI]

    Kane, Shaun K.

    Framing the Conversation: The Role of Facebook Conversations in Shopping for Eyeglasses Karim Said Warby Parker's Facebook page and explore the ways customers formulate questions and conversations,000 Facebook posts, consisting of photos, comments, and "likes". Using statistical analyses and qualitative

  16. Parameterizing energy conversion on rough topography

    E-Print Network [OSTI]

    Warner, Sally

    Parameterizing energy conversion on rough topography using bottom pressure sensors to measure form and mixing U0 Form drag pressure Tidal energy conversion Form drag causes: - internal wave generation - eddy Sound, WA Point Three Tree Previous work McCabe et al., 2006 > Measured the internal form drag

  17. 1982 annual report: Biomass Thermochemical Conversion Program

    SciTech Connect (OSTI)

    Schiefelbein, G.F.; Stevens, D.J.; Gerber, M.A.

    1983-01-01T23:59:59.000Z

    This report provides a brief overview of the Thermochemical Conversion Program's activities and major accomplishments during fiscal year 1982. The objective of the Biomass Thermochemical Conversion Program is to generate scientific data and fundamental biomass converison process information that, in the long term, could lead to establishment of cost effective processes for conversion of biomass resources into clean fuels and petrochemical substitutes. The goal of the program is to improve the data base for biomass conversion by investigating the fundamental aspects of conversion technologies and exploring those parameters which are critical to these conversion processes. To achieve this objective and goal, the Thermochemical Conversion Program is sponsoring high-risk, long-term research with high payoff potential which industry is not currently sponsoring, nor is likely to support. Thermochemical conversion processes employ elevated temperatures to convert biomass materials into energy. Process examples include: combustion to produce heat, steam, electricity, direct mechanical power; gasification to produce fuel gas or synthesis gases for the production of methanol and hydrocarbon fuels; direct liquefaction to produce heavy oils or distillates; and pyrolysis to produce a mixture of oils, fuel gases, and char. A bibliography of publications for 1982 is included.

  18. Unit Conversion Factors Quantity Equivalent Values

    E-Print Network [OSTI]

    Ashurst, W. Robert

    Unit Conversion Factors Quantity Equivalent Values Mass 1 kg = 1000 g = 0.001 metric ton = 2·R 10.73 psia·ft3 lbmol·R 62.36 liter·torr mol·K 0.7302 ft3·atm lbmol·R Temperature Conversions: T

  19. Gene conversion in the rice genome

    E-Print Network [OSTI]

    Xu, Shuqing; Clark, Terry; Zheng, Hongkun; Vang, SÃ ¸ ren; Li, Ruiqiang; Wong, Gane Ka-Shu; Wang, Jun; Zheng, Xiaoguang

    2008-02-25T23:59:59.000Z

    . Over 60% of the conversions we detected were between chromosomes. We found that the inter-chromosomal conversions distributed between chromosome 1 and 5, 2 and 6, and 3 and 5 are more frequent than genome average (Z-test, P < 0.05). The frequencies...

  20. Ocean Thermal Energy Conversion LUIS A. VEGA

    E-Print Network [OSTI]

    Ocean Thermal Energy Conversion LUIS A. VEGA Hawaii Natural Energy Institute, School of Ocean depths of 20 m (surface water) and 1,000 m. OTEC Ocean Thermal Energy Conversion, the process of converting the ocean thermal energy into electricity. OTEC transfer function The relationship between

  1. Special Issue: High Elevation Forests

    E-Print Network [OSTI]

    . They yield raw material for rustic homes, exquisite paneling, and life-giving energy. They capture, purify gathering, hunting, and places to wow visitors. (For the purpose of this report, high country forests

  2. The Big Trees Were Kings: Challenges for Global Response to Climate Change and Tropical Forests Loss

    E-Print Network [OSTI]

    Irland, Lloyd C.

    2010-01-01T23:59:59.000Z

    Brazil Guyana Mexico Suriname India Vietnam Gabon ThailandMalaysia France Laos Guyana Suriname Thailand MadagascarLeone, Solomon Islands, Suriname, Thailand, Uruguay, Uganda,

  3. ORNL part of new project to study how tropical forests worldwide...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    better than ten kilometers. This is the resolution that next-generation Earth system models will achieve during the project's lifetime. The team will take advantage of...

  4. Optimal use of land surface temperature data to detect changes in tropical forest cover

    E-Print Network [OSTI]

    2011-01-01T23:59:59.000Z

    The historical MODIS NDVI climatology record is used to filldiffer- ence from this climatology, and its corresponding

  5. Mathematics 136 Calculus 2 Lab Day 3: Environmental Modeling (Tropical Forests Forever?)

    E-Print Network [OSTI]

    Little, John B.

    , 2014 Goals The logistic differential equation (1) dQ dt = kQ 1 - Q M can be used to model any quantity the greatest amount of plant material per unit area. This is often referred to as the plant biomass. Biomass, to simplify, plant biomass will be measured by the carbon content of the plants. The mean plant biomass on 1

  6. Phylogenetic density dependence and environmental filtering predict seedling mortality in a tropical forest

    E-Print Network [OSTI]

    Chave, Jérôme

    during seedling recruitment (Comita et al. 2010; Gonzalez et al. 2010; Metz et al. 2010). Nevertheless

  7. Plant-Water Relations in Seasonally Dry Tropical Montane Cloud Forests

    E-Print Network [OSTI]

    Goldsmith, Gregory Rubin

    2012-01-01T23:59:59.000Z

    Science 322: 258-261. Comita LS, Engelbrecht BMJ. 2009.258-269. Engelbrecht BMJ, Comita LS, Condit R, Kursar TA,my research. I thank Liza Comita and Donie Bret-Harte for

  8. Abiotic and biotic drivers of seedling survival in a hurricane-impacted tropical forest

    E-Print Network [OSTI]

    . Comita1 *, Maria Uriarte1 , Jill Thompson2 , Inge Jonckheere3 , Charles D. Canham4 and Jess K. Zimmerman2

  9. Habitat specificity and diversity of tree species in an African wet tropical forest

    E-Print Network [OSTI]

    Harms, Kyle E.

    . Chuyong · David Kenfack · Kyle E. Harms · Duncan W. Thomas · Richard Condit · Liza S. Comita Received: 9 Institute, Apdo. 2072, Balboa, Republic of Panama L. S. Comita National Center for Ecological Analysis

  10. Community Interactions In Tropical Forest Restoration And Environmental Governance In The Panama Canal Watershed

    E-Print Network [OSTI]

    Schweizer, Daniella

    2012-01-01T23:59:59.000Z

    Applications 20:1255-1269. Comita, L. S. and S. P. Hubbell.Lin and Augspurger, 2006; Comita and Hubbell, 2009). RecentClark and Clark, 1984; Comita and Hubbell, 2009; Gilbert et

  11. The effectiveness of market-based conservation in the tropics: Forest certification in Ecuador and Bolivia

    E-Print Network [OSTI]

    and benefits for companies to switch from conventional to certified forestry operations. Bolivia has a much government enforcement of forestry regulations a fact that increases the cost of illegal logging, management with agriculture, cattle ranching, and road construction (Burgess, 1993), unsustain- able logging is one

  12. Biological Nitrogen Fixation in Two Tropical Forests: Ecosystem-Level Patterns and Effects of Nitrogen Fertilization

    E-Print Network [OSTI]

    Cusack, Daniela F.; Silver, Whendee; McDowell, William H.

    2009-01-01T23:59:59.000Z

    was kept in open plastic containers and maintained nearconditions in open plastic containers Biological Nitrogen

  13. Managing watershed services of tropical forests and plantations: can meta-analyses help?

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    is also relevant to reservoirs for drinking water or hydroelectricity production (Guo et al., 2000). Over

  14. Optimal use of land surface temperature data to detect changes in tropical forest cover

    E-Print Network [OSTI]

    2011-01-01T23:59:59.000Z

    in the visible and near infrared, and vegetation indices (derived from visible and near infrared wavelengths. [ 5 ]the usefulness of visible and near?infrared surface reflec-

  15. The Tropical Forest and Fire Emissions Experiment: overview and airborne fire emission factor measurements

    E-Print Network [OSTI]

    2007-01-01T23:59:59.000Z

    methanol, ace- tone, acetonitrile, and hydrogen cyanide,ratios of many VOC to acetonitrile, which is thought to beMS species and PM 10 acetonitrile acetaldehyde acrylonitrile

  16. Optimal use of land surface temperature data to detect changes in tropical forest cover

    E-Print Network [OSTI]

    2011-01-01T23:59:59.000Z

    Climate Change (2005), Eleventh Conference of Parties (COP), Agenda item 6: Reducing emissions from deforestation in developing countries,

  17. Comparing tropical forest tree size distributions with the predictions of metabolic ecology and

    E-Print Network [OSTI]

    Harms, Kyle E.

    Kassim,13 David Kenfack,14 James V. LaFrankie,15 Daniel Lagunzad,16 Hua Seng Lee,17 Elizabeth Losos,18 0948, APO AA 34002-0948, Miami, FL, USA 3 Department of Biological Sciences, Louisiana State University

  18. ORNL part of new project to study how tropical forests worldwide respond to

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas Conchas recoveryLaboratory |CHEMPACKRadiologicalEric DulmesHow ORISE is

  19. Characterization of Trapped Lignin-Degrading Microbes in Tropical Forest Soil

    E-Print Network [OSTI]

    DeAngelis, Kristen

    2012-01-01T23:59:59.000Z

    Characterization of Trapped Lignin-Degrading Microbes inCharacterization of Trapped Lignin-Degrading Microbes inCharacterization of Trapped Lignin-Degrading Microbes in

  20. Characterization of trapped lignin-degrading microbes in tropical forest soil

    E-Print Network [OSTI]

    DeAngelis, K.M.

    2012-01-01T23:59:59.000Z

    Thermotogae VHS-B5-50 Table S4, cont?d T1 T2 T3 T4 no ligninligninno lignin lignin no lignin lignin no lignin lignin n.d. n.d.

  1. Application of Planck's law to thermionic conversion

    SciTech Connect (OSTI)

    Caldwell, F.

    1998-07-01T23:59:59.000Z

    A simple, highly accurate, mathematical model of heat-to-electricity conversion is developed from Planck's law for the distribution of the radiant exitance of heat at a selected temperature. An electrical power curve is calculated by integration of the heat law over a selected range of electromagnetic wavelength corresponding to electrical voltage. A novel wavelength-voltage conversion factor, developed from the known wavelength-electron volt conversion factor, establishes the wavelength ({lambda}) for the integration. The Planck law is integrated within the limits {lambda} to 2{lambda}. The integration provides the ideal electrical power that is available from heat at the emitter temperature. When multiplied by a simple ratio, the calculated ideal power closely matches published thermionic converter experimental data. The thermal power model of thermionic conversion is validated by experiments with thermionic emission of ordinary electron tubes. A theoretical basis for the heat law based model of thermionic conversion is found in linear oscillator theory.

  2. Mastication of forest biomass for wildfire hazard reduction and forest health improvement has expanded dramatically

    E-Print Network [OSTI]

    Mastication of forest biomass for wildfire hazard reduction and forest health improvement has or tree spacing is adequate to allow sufficient room for equipment operation. b. Carefully review

  3. Interdigitated photovoltaic power conversion device

    DOE Patents [OSTI]

    Ward, James Scott (Englewood, CO); Wanlass, Mark Woodbury (Golden, CO); Gessert, Timothy Arthur (Conifer, CO)

    1999-01-01T23:59:59.000Z

    A photovoltaic power conversion device has a top surface adapted to receive impinging radiation. The device includes at least two adjacent, serially connected cells. Each cell includes a semi-insulating substrate and a lateral conductivity layer of a first doped electrical conductivity disposed on the substrate. A base layer is disposed on the lateral conductivity layer and has the same electrical charge conductivity thereof. An emitter layer of a second doped electrical conductivity of opposite electrical charge is disposed on the base layer and forms a p-n junction therebetween. A plurality of spaced channels are formed in the emitter and base layers to expose the lateral conductivity layer at the bottoms thereof. A front contact grid is positioned on the top surface of the emitter layer of each cell. A first current collector is positioned along one outside edge of at least one first cell. A back contact grid is positioned in the channels at the top surface of the device for engagement with the lateral conductivity layer. A second current collector is positioned along at least one outside edge of at least one oppositely disposed second cell. Finally, an interdigitation mechanism is provided for serially connecting the front contact grid of one cell to the back contact grid of an adjacent cell at the top surface of the device.

  4. Interdigitated photovoltaic power conversion device

    DOE Patents [OSTI]

    Ward, J.S.; Wanlass, M.W.; Gessert, T.A.

    1999-04-27T23:59:59.000Z

    A photovoltaic power conversion device has a top surface adapted to receive impinging radiation. The device includes at least two adjacent, serially connected cells. Each cell includes a semi-insulating substrate and a lateral conductivity layer of a first doped electrical conductivity disposed on the substrate. A base layer is disposed on the lateral conductivity layer and has the same electrical charge conductivity thereof. An emitter layer of a second doped electrical conductivity of opposite electrical charge is disposed on the base layer and forms a p-n junction therebetween. A plurality of spaced channels are formed in the emitter and base layers to expose the lateral conductivity layer at the bottoms thereof. A front contact grid is positioned on the top surface of the emitter layer of each cell. A first current collector is positioned along one outside edge of at least one first cell. A back contact grid is positioned in the channels at the top surface of the device for engagement with the lateral conductivity layer. A second current collector is positioned along at least one outside edge of at least one oppositely disposed second cell. Finally, an interdigitation mechanism is provided for serially connecting the front contact grid of one cell to the back contact grid of an adjacent cell at the top surface of the device. 15 figs.

  5. Remote sensing and forest damage

    SciTech Connect (OSTI)

    Reid, N.J.

    1987-05-01T23:59:59.000Z

    Each year, damage to North American forests caused by insects, diseases, pollution, and fire results in multibillion dollar losses of revenue and resources. To respond to these losses effectively, forest managers need timely information on the location, extent, and spread of the damage. Traditional techniques for monitoring forest damage include high-resolution aerial photography, color infrared photography, and visual reconnaissance mapping. These techniques require visual interpretation of the data and often are somewhat subjective. In addition, because such analyses are time-consuming and costly, many areas of forest are never mapped, and in cases where maps exist, they often are obsolete or incomplete. An airborne imager has been developed to solve the problems of time-consuming visual analysis and interpretations. The Programmable Multispectral Imager measures small changes - invisible by conventional detection methods - in light reflected by the forest canopy. The PMI measures the color an intensity of reflected light and records this information digitally in computer tape aboard an aircraft. This information is then available for later entry into a computer for processing and enhancement. Although airborne imagers have been available for nearly three decades, they have not been used extensively for forest damage assessment or other forestry applications because of their poor sensitivity and their limited number of fixed spectral channels. The PMI is the first of a new generation of imagers that combine high sensitivity with the flexibility of continuous spectral coverage. This allows scientists to evaluate the potential causes and effects of stress on vegetation.

  6. Ocean Barrier Layers’ Effect on Tropical Cyclone Intensification

    SciTech Connect (OSTI)

    Balaguru, Karthik; Chang, P.; Saravanan, R.; Leung, Lai-Yung R.; Xu, Zhao; Li, M.; Hsieh, J.

    2012-09-04T23:59:59.000Z

    Improving a tropical cyclone's forecast and mitigating its destructive potential requires knowledge of various environmental factors that influence the cyclone's path and intensity. Herein, using a combination of observations and model simulations, we systematically demonstrate that tropical cyclone intensification is significantly affected by salinity-induced barrier layers, which are 'quasi-permanent' features in the upper tropical oceans. When tropical cyclones pass over regions with barrier layers, the increased stratification and stability within the layer reduce storm-induced vertical mixing and sea surface temperature cooling. This causes an increase in enthalpy flux from the ocean to the atmosphere and, consequently, an intensification of tropical cyclones. On average, the tropical cyclone intensification rate is nearly 50% higher over regions with barrier layers, compared to regions without. Our finding, which underscores the importance of observing not only the upper-ocean thermal structure but also the salinity structure in deep tropical barrier layer regions, may be a key to more skillful predictions of tropical cyclone intensities through improved ocean state estimates and simulations of barrier layer processes. As the hydrological cycle responds to global warming, any associated changes in the barrier layer distribution must be considered in projecting future tropical cyclone activity.

  7. Clarence Strait Tidal Energy Project, Tenax Energy Tropical Tidal...

    Open Energy Info (EERE)

    Test Centre, Jump to: navigation, search 1 Retrieved from "http:en.openei.orgwindex.php?titleClarenceStraitTidalEnergyProject,TenaxEnergyTropicalTidalTestCentre,&o...

  8. TROPICAL DEFORESTATION MODELLING: A COMPARATIVE ANALYSIS OF DIFFERENT PREDICTIVE APPROACHES.

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    TROPICAL DEFORESTATION MODELLING: A COMPARATIVE ANALYSIS OF DIFFERENT PREDICTIVE APPROACHES-time discretisation; Remote Sensing; Neural Networks; Markov Chains; MCE; Dinamica; Risk management; Deforestation

  9. australian tropical savannas: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    results in warmer and drier climate of tropical savannas increases temperatures and wind speeds and decreases precipitation and relative humidity Jackson, Robert B. 2...

  10. Carbon sequestration potential of tropical pasture compared with afforestation in Panama

    E-Print Network [OSTI]

    Potvin, Catherine

    Carbon sequestration potential of tropical pasture compared with afforestation in Panama S E B) to estimate the carbon sequestration potential of tropical pasture compared with afforestation; and (3 show the potential for considerable carbon sequestration of tropical afforestation and highlight

  11. Conversion of Units of Measurement Gordon S. Novak Jr. \\Lambda

    E-Print Network [OSTI]

    Novak Jr., Gordon S.

    by the programmer; this can be both burdensome and error­prone, since the conversion factors used by the programmer guidelines for use of SI units and tables of conversion factors. Several books provide conversion factors, the accuracy of the conversion factors, and the algorithms that some books present for unit conversion

  12. Energy conversion & storage program. 1994 annual report

    SciTech Connect (OSTI)

    Cairns, E.J.

    1995-04-01T23:59:59.000Z

    The Energy Conversion and Storage Program investigates state-of-the-art electrochemistry, chemistry, and materials science technologies for: (1) development of high-performance rechargeable batteries and fuel cells; (2) development of high-efficiency thermochemical processes for energy conversion; (3) characterization of complex chemical processes and chemical species; (4) study and application of novel materials for energy conversion and transmission. Research projects focus on transport process principles, chemical kinetics, thermodynamics, separation processes, organic and physical chemistry, novel materials, and advanced methods of analysis.

  13. Energy Conversion & Storage Program, 1993 annual report

    SciTech Connect (OSTI)

    Cairns, E.J.

    1994-06-01T23:59:59.000Z

    The Energy Conversion and Storage Program applies chemistry and materials science principles to solve problems in: production of new synthetic fuels; development of high-performance rechargeable batteries and fuel cells; development of high-efficiency thermochemical processes for energy conversion; characterization of complex chemical processes and chemical species; and the study and application of novel materials for energy conversion and transmission. Projects focus on transport-process principles, chemical kinetics, thermodynamics, chemical kinetics, thermodynamics, separation processes, organic and physical chemistry, novel materials, and advanced methods of analysis.

  14. Tropical Pacific nutrient dynamics in the modern and pleistocene ocean : insights from the nitrogen isotope system

    E-Print Network [OSTI]

    Rafter, Patrick Anthony

    2009-01-01T23:59:59.000Z

    eastern tropical North Pacific Ocean, Mar. Chem. , 3, 271–eastern tropical South Pacific Ocean, Mar. Chem. , 16, 277–and N 2 fixation in the Pacific Ocean, Global Biogeochem.

  15. Experimental and Analytical Studies on Pyroelectric Waste Heat Energy Conversion

    E-Print Network [OSTI]

    Lee, Felix

    2012-01-01T23:59:59.000Z

    High-e?ciency direct conversion of heat to electrical energyJ. Yu and M. Ikura, “Direct conversion of low-grade heat tois concerned with direct conversion of thermal energy into

  16. ARM - Lesson Plans: Tropical Western Pacific

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc Documentation RUC : XDCResearch Related InformationAcid RainThe Pacific and El NiñoTropical

  17. Tropical Cloud Life Cycle and Overlap Structure

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear SecurityTensile Strain Switched Ferromagnetism in Layered NbS2TopoPortalBRDF Effects inHeterogeneous andTropical

  18. Energy Conversion and Transmission Facilities (South Dakota)

    Broader source: Energy.gov [DOE]

    This legislation applies to energy conversion facilities designed for or capable of generating 100 MW or more of electricity, wind energy facilities with a combined capacity of 100 MW, certain...

  19. Summer Series 2012 - Conversation with Omar Yaghi

    ScienceCinema (OSTI)

    Omar Yaghi

    2013-06-24T23:59:59.000Z

    Jeff Miller, head of Public Affairs, sat down in conversation with Omar Yaghi, director of the Molecular Foundry, in the first of a series of "powerpoint-free" talks on July 11th 2012, at Berkeley Lab.

  20. Ris Energy Report 2 Bioenergy conversion

    E-Print Network [OSTI]

    6.3 Risø Energy Report 2 Bioenergy conversion There is a wide range of technologies to derive operate automatically and are in many regions an economic alternative, e.g. Austria and Finland

  1. Overview of Capabilities Conversion System Technology

    E-Print Network [OSTI]

    Lee, Dongwon

    cycles Heat exchanger design and optimization TES Material Integration & Optimization: Solar power plantOverview of Capabilities Conversion System Technology - Power System Demonstrations - Systems Conceptual Design/Trade Space Exploration - Simulation Modeling for Manufacturing - Hybrid Energy Systems

  2. Assessment of ocean thermal energy conversion

    E-Print Network [OSTI]

    Muralidharan, Shylesh

    2012-01-01T23:59:59.000Z

    Ocean thermal energy conversion (OTEC) is a promising renewable energy technology to generate electricity and has other applications such as production of freshwater, seawater air-conditioning, marine culture and chilled-soil ...

  3. Summer Series 2012 - Conversation with Kathy Yelick

    ScienceCinema (OSTI)

    Kathy Yelick

    2013-06-24T23:59:59.000Z

    Jeff Miller, head of Public Affairs, sat down in conversation with Kathy Yelick, Associate Berkeley Lab Director, Computing Sciences, in the second of a series of "powerpoint-free" talks on July 18th 2012, at Berkeley Lab.

  4. Forest products and services, international trade Trade in forest products and services

    E-Print Network [OSTI]

    Forest products and services, international trade Trade in forest products and services The forest products sector is estimated to contribute about one percent of world gross domestic product and to account, pulp and paper exceeds US$200 billion. The value of non-wood forest products and the environmental

  5. Spring 2012 Denman Forestry Issues Series presents: Role of Forests and Forest Products in Carbon Mitigation

    E-Print Network [OSTI]

    Borenstein, Elhanan

    and Concerns "Pursuing Carbon and Forest Sustainability in Forest Biomass Energy Production" Craig PartridgeSpring 2012 Denman Forestry Issues Series presents: Role of Forests and Forest Products in Carbon Mitigation and Energy Independence May 15, 2012, 1-5:30 p.m., NHS Hall at CUH, UW Botanic Gardens School

  6. The Economic Importance of New Hampshire's Forest-Based Economy FOREST-BASED

    E-Print Network [OSTI]

    New Hampshire, University of

    products manufacturing, pulp and paper manufacturing, wood energy, and the forest-based recreational1 The Economic Importance of New Hampshire's Forest-Based Economy FOREST-BASED ECONOMY 2013 E C O N O M I C IMPORTANCE North East State Foresters Association The NEW HAMPSHIRE'S of #12;2 The Economic

  7. The Future of Forest Certification in A Roundtable Discussion by Forest Stakeholders

    E-Print Network [OSTI]

    , minimize energy wastes, follow local laws, and respect people's rights. · Multiple forest certificationThe Future of Forest Certification in Virginia A Roundtable Discussion by Forest Stakeholders by The Virginia Conservation Network's Forest Issues Working Group http://www.vcnva.org/ With advice

  8. The Maslov dequantization, idempotent and tropical mathematics: A brief introduction

    E-Print Network [OSTI]

    G. L. Litvinov

    2005-07-01T23:59:59.000Z

    This paper is a brief introduction to idempotent and tropical mathematics. Tropical mathematics can be treated as a result of the so-called Maslov dequantization of the traditional mathematics over numerical fields as the Planck constant $\\hbar$ tends to zero taking imaginary values.

  9. Proximate Population Factors and Deforestation in Tropical Agricultural Frontiers

    E-Print Network [OSTI]

    Lopez-Carr, David

    Proximate Population Factors and Deforestation in Tropical Agricultural Frontiers David L. Carr are significantly associated at the global and regional scales, evidence for population links to deforestation of thought on population­environment theories relevant to deforestation in tropical agricultural frontiers

  10. Carbon accumulation of tropical peatlands over millennia: a modeling approach

    E-Print Network [OSTI]

    in the global carbon cycle by storing about 40­90 Gt C in peat. Over the past several decades, tropical with lowering the water table and peat burning, releasing large amounts of carbon stored in peat the Holocene Peat Model (HPM), which has been successfully applied to northern temperate peatlands. Tropical

  11. Climate change and tropical biodiversity: a new focus

    E-Print Network [OSTI]

    Wisenden, Brian D.

    Climate change and tropical biodiversity: a new focus Jedediah Brodie1 , Eric Post2 and William F, Australia Considerable efforts are focused on the consequences of climate change for tropical rainforests climatic changes and human land use) remain understudied. Key concerns are that aridification could

  12. TROPICAL CYCLONE RESEARCH REPORT TCRR 2: 131 (2013)

    E-Print Network [OSTI]

    Smith, Roger K.

    circulation (e.g., Marks and Shay 1998). There have been considerable advances in computer technology overTROPICAL CYCLONE RESEARCH REPORT TCRR 2: 1­31 (2013) Meteorological Institute Ludwig Maximilians University of Munich Paradigms for tropical cyclone intensification Michael T. Montgomerya 1 and Roger K

  13. Cyclone Center Using Crowdsourcing to Determine Tropical Cyclone Intensity

    E-Print Network [OSTI]

    Hennon, Christopher C.

    Cyclone Center Using Crowdsourcing to Determine Tropical Cyclone Intensity Almost all tropical cyclones are not directly observed. Agency estimates of storm position and intensity are not homogeneous in time and space. Cyclone Center uses crowdsourcing to collect data that will lead to a consistent

  14. Hybrid coupled modeling of the tropical Pacific using neural networks

    E-Print Network [OSTI]

    Hsieh, William

    Hybrid coupled modeling of the tropical Pacific using neural networks Shuyong Li, William W. Hsieh To investigate the potential for improving hybrid coupled models (HCM) of the tropical Pacific by the use: dynamical coupled models, statistical models and hybrid coupled models [Barnston et al., 1994]. A hybrid

  15. National Forest Inventory Description of attributes

    E-Print Network [OSTI]

    National Forest Inventory Description of attributes Woodland_S: Woodland source (a) NFI base map have been mapped in accordance with the NFI mapping rules. National Forest Inventory #12;(f) 2010 AP

  16. Future Forests Program Plan 2013 2016

    E-Print Network [OSTI]

    is that knowledge produced by Future Forests will make possible an increased and yet, we envision that knowledge produced by Future Forests will contribute for biodiversity conservation, water protection, recreational needs, climate change mitigation

  17. Department of Forest Resourcesand Environmental Conservation

    E-Print Network [OSTI]

    Buehrer, R. Michael

    , MF, MNR, and PhD). Its research areas include Forest Ecology and Management, Forest Biometrics on a perception-based score plus a citation-and-publication-based composite index. The National Research Council

  18. FINLAND SOURCES 2007 -Forest industry production Authorities

    E-Print Network [OSTI]

    FINLAND SOURCES 2007 - Forest industry production Print Home Finland Government Authorities Local administration Federations, organizations Company outlooks Industry » Overview » Forest industry production » Turnover » Profit » Energy Year 2006 » Shipping Business services Infrastructure Economy Education

  19. Relating forest biomass to SAR data

    SciTech Connect (OSTI)

    LeToan, T.; Beaudoin, A. (Centre d'Etude Spatiale des Rayonnements CNRS- Univ. Paul Sabatier Toulouse (FR)); Riom, J.; Guyon, D. (Lab. de Bioclimatologie INRA, Bordeaux (FR))

    1992-03-01T23:59:59.000Z

    This paper presents the results of an experiment defined to demonstrate the use of radar to retrieve forest biomass. The SAR data, after calibration, has been analyzed together with ground data collected on forest stands from young stage (8 yrs) to nature stage (46 yrs). The dynamic range of the radar backscatter intensity from forest was found maximum at P-band and decreases with increasing frequencies. Also, cross-polarized backscatter intensity yields the best sensitivities to variations of forest biomass. L-band data confirmed past results on good correlation with forest parameters. The most striking observation has been the strong correlation of P-band backscatter intensity to forest biomass. In order to develop algorithms to infer forest biomass from spaceborne SAR's, the experimental results will be compared with observations on other forest ecosystems and will be interpreted by theoretical modeling.

  20. Forest Research No. 37 May 2007

    E-Print Network [OSTI]

    . ©AndreaKiewitt EcoThe Biodiversity and Conservation Newsletter of Ecology Division Forest Research type #12;2 Forest Research Welcome to the May issue of Ecotype, the Biodiversity and Conservation

  1. University of Washington School of Forest Resources

    E-Print Network [OSTI]

    Borenstein, Elhanan

    limited staff and financial resources Opportunities: Where are opportunities facing you; i1 University of Washington School of Forest Resources Communications Plan 2010-2011 6 resource programs in the country, the School of Forest Resources (SFR) provides world class

  2. Potential Impacts of Hydrokinetic and Wave Energy Conversion...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Potential Impacts of Hydrokinetic and Wave Energy Conversion Technologies on Aquatic Environments Potential Impacts of Hydrokinetic and Wave Energy Conversion Technologies on...

  3. Advanced, High Power, Next Scale, Wave Energy Conversion Device...

    Broader source: Energy.gov (indexed) [DOE]

    Advanced, High Power, Next Scale, Wave Energy Conversion Device Advanced, High Power, Next Scale, Wave Energy Conversion Device Advanced, High Power, Next Scale, Wave Energy...

  4. Process Design and Economics for the Conversion of Lignocellulosic...

    Broader source: Energy.gov (indexed) [DOE]

    Process Design and Economics for the Conversion of Lignocellulosic Biomass to Hydrocarbons: Dilute-Acid and Enzymatic Deconstruction of Biomass to Sugars and Biological Conversion...

  5. 2011 Biomass Program Platform Peer Review: Biochemical Conversion...

    Broader source: Energy.gov (indexed) [DOE]

    Biochemical Conversion 2011 Biomass Program Platform Peer Review: Biochemical Conversion This document summarizes the recommendations and evaluations provided by an independent...

  6. New process speeds conversion of biomass to fuels

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Conversion of Biomass to Fuels New process speeds conversion of biomass to fuels Scientists made a major step forward recently towards transforming biomass-derived molecules into...

  7. Thermoelectric Conversion of Waste Heat to Electricity in an...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    truck system. schock.pdf More Documents & Publications Thermoelectric Conversion of Wate Heat to Electricity in an IC Engine Powered Vehicle Thermoelectric Conversion of Waste...

  8. Thermoelectric Conversion of Exhaust Gas Waste Heat into Usable...

    Broader source: Energy.gov (indexed) [DOE]

    Thermoelectric Conversion of Exhaust Gas Waste Heat into Usable Electricity Thermoelectric Conversion of Exhaust Gas Waste Heat into Usable Electricity Presents successful...

  9. Conversation/Culture Partner Program Would you like to help

    E-Print Network [OSTI]

    Thomas, Andrew

    Conversation/Culture Partner Program Would you like to help another student improve their English different cultures; *Help another student improve their conversation English; and *Assist another student

  10. Energy Conversion and Thermal Efficiency Sales Tax Exemption

    Broader source: Energy.gov [DOE]

    Ohio may provide a sales and use tax exemption for certain tangible personal property used in energy conversion, solid waste energy conversion, or thermal efficiency improvement facilities designed...

  11. aspergillus fumigatus conversion: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    135 Framing the Conversation: The Role of Facebook Conversations in Shopping for Eyeglasses Computer Technologies and Information Sciences Websites Summary: Framing the...

  12. antidiabetic bis-maltolato-oxovanadiumiv conversion: Topics by...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    88 Framing the Conversation: The Role of Facebook Conversations in Shopping for Eyeglasses Computer Technologies and Information Sciences Websites Summary: Framing the...

  13. Evaluation of Thermal to Electrical Energy Conversion of High...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Thermal to Electrical Energy Conversion of High Temperature Skutterudite-Based Thermoelectric Modules Evaluation of Thermal to Electrical Energy Conversion of High Temperature...

  14. Trends in Contractor Conversion Rates | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Contractor Conversion Rates Trends in Contractor Conversion Rates Better Buildings Residential Network Workforce Business Partners Peer Exchange Call Series: Trends in Contractor...

  15. Nanostructured High-Temperature Bulk Thermoelectric Energy Conversion...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    High-Temperature Bulk Thermoelectric Energy Conversion for Efficient Automotive Waste Heat Recovery Nanostructured High-Temperature Bulk Thermoelectric Energy Conversion for...

  16. Thermoelectric Conversion of Waste Heat to Electricity in an...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    on a OTR truck schock.pdf More Documents & Publications Thermoelectric Conversion of Waste Heat to Electricity in an IC Engine Powered Vehicle Thermoelectric Conversion of...

  17. Ocean Thermal Energy Conversion: Potential Environmental Impacts and Fisheries

    E-Print Network [OSTI]

    Hawai'i at Manoa, University of

    Ocean Thermal Energy Conversion: Potential Environmental Impacts and Fisheries Christina M Comfort Institute #12;Ocean Thermal Energy Conversion (OTEC) · Renewable energy ­ ocean thermal gradient · Large

  18. Conversion Technologies for Advanced Biofuels - Bio-Oil Production...

    Energy Savers [EERE]

    Oil Production Conversion Technologies for Advanced Biofuels - Bio-Oil Production RTI International report-out at the CTAB webinar on Conversion Technologies for Advanced Biofuels...

  19. Thermochemical Conversion: Using Heat and Catalysis to Make Biofuels...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Conversion: Using Heat and Catalysis to Make Biofuels and Bioproducts Thermochemical Conversion: Using Heat and Catalysis to Make Biofuels and Bioproducts The Bioenergy...

  20. Thermoelectric Conversion of Waste Heat to Electricity in an...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Conversion of Waste Heat to Electricity in an IC Engine Powered Vehicle Thermoelectric Conversion of Waste Heat to Electricity in an IC Engine Powered Vehicle Presentation from the...

  1. Novel Energy Conversion Equipment for Low Temperature Geothermal...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Novel Energy Conversion Equipment for Low Temperature Geothermal Resources Novel Energy Conversion Equipment for Low Temperature Geothermal Resources Project objective: Develop...

  2. New Approaches to Forest Monitoring using Remote Sensing

    E-Print Network [OSTI]

    K. Steininger, · Mark Carroll, · Charlene DiMiceli PNAS 2008 #12;#12;Tropical deforestation rates (2000Tropical deforestation rates (2000--2005)2005) Brazil and Indonesia confirmed as having theBrazil and Indonesia confirmed as having the highest rates of tropical deforestation.highest rates of tropical

  3. Air pollutants effects on forest ecosystems

    SciTech Connect (OSTI)

    Not Available

    1985-01-01T23:59:59.000Z

    This book presents the papers given at a conference on the effects of acid rain on forests. The conference was sponsored by the National Acid Precipitation Assessment Program (NAPAP). Topics considered at the conference included the status of US research on acid deposition and its effects contributing factors to the decline of forests, evidence for effects on ecosystems, the effects of air pollutants on forest ecosystems in North America and Europe, forest management, and future scientific research programs and management approaches.

  4. KELP FOREST FOOD WEBS IN GWAII HAANAS

    E-Print Network [OSTI]

    KELP FOREST FOOD WEBS IN GWAII HAANAS: Ecosystem-Level Effects of Predator Depletion and Recovery-based management in restoring kelp forest resilience and productivity within and adjacent to Gwaii Haanas. We share of Research & Preliminary Results | 7 Benthic Invertebrate Communities in Kelp Forests | 7 Field Methods

  5. PUBLICATIONS LIST Louisiana Forest Products Development Center

    E-Print Network [OSTI]

    to Air-Drying and Kiln-drying from the Green Condition. Gibson, Grozdits #29 Southern Forest ProductsPUBLICATIONS LIST Louisiana Forest Products Development Center School of Renewable Natural Forest Products Development Center RESEARCH BRIEFS #1 An Overview of the Louisiana Secondary Wood

  6. Forests and soil UK Forestry Standard Guidelines

    E-Print Network [OSTI]

    ; forestry; soil; sustainable forest management; UK Forestry Standard. FCGL006/FC-GB(MMJ)/JCTP-2.5K/NOV11 for sustainable forest management Good forestry practice requirement Element of SFM Reference number LegalForests and soil UK Forestry Standard Guidelines #12;Key to symbols UKFS Requirements

  7. Forest and Carbon offset investments: problems and

    E-Print Network [OSTI]

    Pettenella, Davide

    and problems related to forest investments as C sinks 2. The two markets: ­The "regulated" market ­The voluntary market 3. Some final considerations 1. Mitigation options and problems related to forest (Bioenergy / biofuels) Mitigation options in the forest sector #12;2 Source: Schlamadinger, 2000 2. The two

  8. Global integration for metals, mining and forest

    E-Print Network [OSTI]

    such as coils, bars and sheets. · Forest and paper companies own or lease forests, cut timber, process woodBeyond the familiar Global integration for metals, mining and forest and paper companies Industrial commitment by IBM Global Business Services to provide analysis and viewpoints that help companies realize

  9. NATURAL RESOURCES CONSERVATION Forest Ecology & Conservation

    E-Print Network [OSTI]

    Schweik, Charles M.

    NATURAL RESOURCES CONSERVATION Forest Ecology & Conservation Fall Semester Spring Semester First Conservation 3 BCT 150 The Built Envir. 4 NRC 211 Animal Sampling & Ident. 1 NRC 212 Forest Tree & Shrub ID 1; NRC 515 Forest Fire Mgt; NRC 597C Case Studies in Conservation; courses in Sociology, Anthropology

  10. Sustainability the forest and paper industry

    E-Print Network [OSTI]

    In Tune with the Environment The Forest and Paper Industry's Energy Profile 2 3 5 7 9 12 #12Sustainability the forest and paper industry ­ on its way to sustainability #12;Contents Introduction The Forest and Paper Industry's Economic Profile A Key Social Actor Sustainable Forestry Practices

  11. Sustainability the forest and paper industry

    E-Print Network [OSTI]

    Sustainable Forestry Practices In Tune with the Environment The Forest and Paper Industry's Energy Profile 2 3Sustainability the forest and paper industry ­ on its way to sustainability http://www.icfpa.org/_documents/ICFPAStatement1.pdf #12;Contents Introduction The Forest and Paper Industry's Economic Profile A Key Social Actor

  12. IPST: Enabling the Forest Bioproducts Industry

    E-Print Network [OSTI]

    and new forest products, renewable energy, chemicals, advanced materials and pharmaceuticals. MissionIPST: Enabling the Forest Bioproducts Industry Strategic Directions and Capabilities September 10 for the cost-competitive transformation of forest biomaterials into value-added products, including traditional

  13. Fuel to Burn: Economics of Converting Forest

    E-Print Network [OSTI]

    Fried, Jeremy S.

    Fuel to Burn: Economics of Converting Forest Thinnings to Energy Using BioMax in Southern Oregon E-scale gasification plants that generate electrical energy from forest health thinnings may have the potential; Christensen, Glenn. 2005. Fuel to burn: Economics of converting forest thinnings to energy using Bio

  14. FOREST SERVICE U. .DEPARTMENT OF AGRICULTURE

    E-Print Network [OSTI]

    Standiford, Richard B.

    settbgs; planing m d ts; scenic roads; visible area; esthetic WT; Bhck Hills Nationd Forest, Many types, was developed. BLACK HILLS NATIONAL FOREST Each summer, thousands of recreationists visit the Black HlillsCSOUTH FOREST SERVICE U. §.DEPARTMENT OF AGRICULTURE P.O. BOX 245, BERKELEY, CALIFORNIA 94701 BLE

  15. Denman Forestry Issues Series: Washington's Forest Regulations

    E-Print Network [OSTI]

    Borenstein, Elhanan

    Denman Forestry Issues Series: Washington's Forest Regulations and Their Impacts on The Private College of Forest Resources continued its Denman Forestry Issues Series on May 30, 2001. Alumni landowners. Policy analysts and speakers representing the Washington Farm Forestry Assn., Washington Forest

  16. UK Forestry Standard Guidelines Forests and

    E-Print Network [OSTI]

    UK Forestry Standard Guidelines Forests and climate change #12;Key to symbols UKFS Requirements for sustainable forest management Good forestry practice requirement Element of SFM Reference number Legal of SFM Reference number #12;Forests and climate change Forestry Commission: Edinburgh UK Forestry

  17. Forests and biodiversity UK Forestry Standard Guidelines

    E-Print Network [OSTI]

    Forests and biodiversity UK Forestry Standard Guidelines #12;Key to symbols UKFS Requirements;Forests and biodiversity Forestry Commission: Edinburgh UK Forestry Standard Guidelines #12;© Crown Commission in 2011. ISBN 978-0-85538-831-7 FORESTRY COMMISSION (2011). Forests and Biodiversity. UK Forestry

  18. The Tropical Warm Pool International Cloud Experiment

    SciTech Connect (OSTI)

    May, Peter T.; Mather, James H.; Vaughan, Geraint; Jakob, Christian; McFarquhar, Greg; Bower, Keith; Mace, Gerald G.

    2008-05-01T23:59:59.000Z

    One of the most complete data sets describing tropical convection ever collected will result from the upcoming Tropical Warm Pool International Cloud Experiment (TWP-ICE) in the area around Darwin, Northern Australia in January and February 2006. The aims of the experiment, which will be operated in conjunction with the DOE Atmospheric Radiation Measurement (ARM) site in Darwin, will be to examine convective cloud systems from their initial stages through to the decay of the cirrus generated and to measure their impact on the environment. The experiment will include an unprecedented network of ground-based observations (soundings, active and passive remote sensors) combined with low, mid and high altitude aircraft for in-situ and remote sensing measurements. A crucial outcome of the experiment will be a data set suitable to provide the forcing and evaluation data required by cloud resolving and single column models as well as global climate models (GCMs) with the aim to contribute to parameterization development. This data set will provide the necessary link between the observed cloud properties and the models that are attempting to simulate them. The experiment is a large multi-agency experiment including substantial contributions from the United States DOE ARM program, ARM-UAV program, NASA, the Australian Bureau of Meteorology, CSIRO, EU programs and many universities.

  19. Climate Change and Forest Disturbances

    E-Print Network [OSTI]

    Dale, Virginia H.; Joyce, Linda A.; McNulty, Steve; Neilson, Ronald P.; Ayres, Matthew P.; Flannigan, Michael D.; Hanson, Paul J.; Irland, Lloyd C.; Lugo, Ariel E.; Peterson, Chris J.; Simberloff, Daniel; Swanson, Frederick J.; Stocks, Brian J.; Wotton, B. Michael; Peterson, A. Townsend

    2001-01-01T23:59:59.000Z

    Exotic species Nationwide 60j Landslide 100,000 1,000k Drought Nationwide Severity dependent aData from Ruiz (1996). bFrom 1989 to 1994, fires destroyed 454,000 ha of US forests each year (Ruiz 1996). In 1994, the United States had 661,000 ha of forest... by tornadoes. fAcross the southern United States, average harvest rotation length is 30 years, while across the North and Rocky Mountain region it is 70 years. Tornadoes destroy both the current year and accumulated previous years’ growth. Annual returns...

  20. Forest Fuels ReductionForest Fuels Reduction Department of

    E-Print Network [OSTI]

    Bolding, M. Chad

    are the soil management and watershed implications from alternative fuels reduction approaches? 3. How do and implement appropriate technologies to meet sustainable forest management objectives involving fuels Management 1. What should the size and distribution of the residual woody material be on-site from a fire

  1. On the Wavelength of the Rossby Waves Radiated by Tropical Cyclones KYLE D. KROUSE

    E-Print Network [OSTI]

    Sobel, Adam

    of tropical cyclones; the theory then predicts the zonal separation distance of such tropical cyclone pairsOn the Wavelength of the Rossby Waves Radiated by Tropical Cyclones KYLE D. KROUSE Department cyclone (TC). In some cases, such disturbances undergo tropical cyclogenesis, resulting in a pair

  2. Silviculture Forest Productivity and Nutrition

    E-Print Network [OSTI]

    Geldenhuys, Jaco

    15 Silviculture Forest Productivity and Nutrition Fire and Fuel Load Management Tree crops for bio-energy Productivity of Semi-mature Cape Pines Across Gradients of Water and Nutrient Availability The nutrient as optimise the period of their release to use in controlled release fertilizer mixtures. This will make large

  3. North Dakota's Forests Resource Bulletin

    E-Print Network [OSTI]

    opportunity provider and employer. #12;David E. Haugen, Robert Harsel, Aaron Bergdahl, Tom Claeys, Christopher, Charles J. Barnett, Grant M. Domke, Dan Kaisershot, W. Keith Moser, Andrew J. Lister, and Dale D and fire management team leader with the North Dakota Forest Service, Bismarck, ND. Christopher W. Woodall

  4. Majoring in Forest Resources & Conservation

    E-Print Network [OSTI]

    Hill, Jeffrey E.

    -use management and includes substantial field work and group projects. Summer B FOR3200C Foundations in NaturalMajoring in Forest Resources & Conservation Specialization: Watershed Science & Management Watershed Science & Management prepares students to address the many management issues associated with water

  5. COMPARING FOREST MANAGEMENT PRACTICES UNDER

    E-Print Network [OSTI]

    COMPARING FOREST MANAGEMENT PRACTICES UNDER COMMUNITY-BASED AND CONVENTIONAL TENURES IN BRITISH OF MASTER OF RESOURCE MANAGEMENT In the School of Resource and Environmental Management © David Mealiea 2011 of Canada, this work may be reproduced, without authorization, under the conditions for Fair Dealing

  6. ORIGINAL PAPER Tunability of Propane Conversion over Alumina Supported

    E-Print Network [OSTI]

    ORIGINAL PAPER Tunability of Propane Conversion over Alumina Supported Pt and Rh Catalysts William Propane conversion over alumina supported Pt and Rh (1 wt% metals loading) was examined under fuel rich conversion and almost complete propane conversion) so long as the metal particle size was sufficiently low

  7. Building Blocks of Tropical Diabatic Heating

    SciTech Connect (OSTI)

    Hagos, Samson M.

    2010-07-01T23:59:59.000Z

    Rotated EOF analyses are used to study the composition and variability of large-scale tropical diabatic heating profiles estimated from eight field campaigns. The results show that the profiles are composed of a pair of building blocks. These are the stratiform heating with peak heating near 400hpa and a cooling peak near 700hPa and convective heating with a heating maximum near 700hPa. Variations in the contributions of these building blocks account for the evolution of the large-scale heating profile. Instantaneous top (bottom) heavy large scale heating profiles associated with excess of stratiform (convective) heating evolve towards a stationary mean profile due to exponential decay of the excess stratiform (convective) heating.

  8. Tropical Cloud Properties and Radiative Heating Profiles

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    Mather, James

    We have generated a suite of products that includes merged soundings, cloud microphysics, and radiative fluxes and heating profiles. The cloud microphysics is strongly based on the ARM Microbase value added product (Miller et al., 2003). We have made a few changes to the microbase parameterizations to address issues we observed in our initial analysis of the tropical data. The merged sounding product is not directly related to the product developed by ARM but is similar in that it uses the microwave radiometer to scale the radiosonde column water vapor. The radiative fluxes also differ from the ARM BBHRP (Broadband Heating Rate Profile) product in terms of the radiative transfer model and the sampling interval.

  9. Overview of coal conversion process instrumentation

    SciTech Connect (OSTI)

    Liptak, B. G.; Leiter, C. P.

    1980-05-01T23:59:59.000Z

    A review of standard instrumentation used in the processing industries is given, and the applicability of this instrumentation to measurements in mixed phase media and hostile environments such as those encountered in coal conversion processes is considered. The major projects in coal conversion sponsored by the US Department of Energy are briefly reviewed with schematics to pinpoint areas where the standard instrumentation is inadequate or altogether lacking. The next report in this series will provide detailed requirements on the instruments needed for these processes, will review new instruments which have recently become commercially available but are not yet considered standard instrumentation, and report on the status of new instruments which are being developed and, in some cases, undergoing tests in coal conversion plants.

  10. Energy conversion & storage program. 1995 annual report

    SciTech Connect (OSTI)

    Cairns, E.J.

    1996-06-01T23:59:59.000Z

    The 1995 annual report discusses laboratory activities in the Energy Conversion and Storage (EC&S) Program. The report is divided into three categories: electrochemistry, chemical applications, and material applications. Research performed in each category during 1995 is described. Specific research topics relate to the development of high-performance rechargeable batteries and fuel cells, the development of high-efficiency thermochemical processes for energy conversion, the characterization of new chemical processes and complex chemical species, and the study and application of novel materials related to energy conversion and transmission. Research projects focus on transport-process principles, chemical kinetics, thermodynamics, separation processes, organic and physical chemistry, novel materials and deposition technologies, and advanced methods of analysis.

  11. Residual oil conversion in Ashland FCC Units

    SciTech Connect (OSTI)

    Barger, D.F.; Miller, C.B.

    1983-03-01T23:59:59.000Z

    Ashland Petroleum Company is a production-poor refining and marketing company. A company must have refining flexibility to compete in today's crude and marketing situation. Ashland has adopted a dual approach to achieving the required refining flexibility: development and construction of the RCC process, and development of techniques to practice residual oil conversion in Ashland FCC units. This paper discusses the operating techniques Ashland has used to allow residual oil conversion to be practiced in their present day FCC's and shows some of the yields which have been achieved.

  12. Methanol engine conversion feasibility study: Phase 1

    SciTech Connect (OSTI)

    Not Available

    1983-03-01T23:59:59.000Z

    This report documents the selection of the surface-assisted ignition technique to convert two-stroke Diesel-cycle engines to methanol fuel. This study was the first phase of the Florida Department of Transportation methanol bus engine development project. It determined both the feasibility and technical approach for converting Diesel-cycle engines to methanol fuel. State-of-the-art conversion options, associated fuel formulations, and anticipated performance were identified. Economic considerations and technical limitations were examined. The surface-assisted conversion was determined to be feasible and was recommended for hardware development.

  13. Tropical Resources Bulletin 1 TROPICALRESOURCESThe Bulletin of the Yale Tropical Resources Institute

    E-Print Network [OSTI]

    Haller, Gary L.

    , PERCEPTION, AND BELIEF 6 Taboo in the Marojejy Massif: Characterization and Conservation Implications Rachel, and Boundary-making in the Atlantic Forest of Brazil Alaine Ball, MFS 2012 31 The Political Ecology of Fire: The Social and Ecological E ects of Smallholder-based Native Species Reforestation in the Philippines Erica

  14. Tropical Ecology 46(2): 253263, 2005 ISSN 05643295 International Society for Tropical Ecology

    E-Print Network [OSTI]

    MacDonald, Lee

    .55×105 t). Resumen: En el presente estudio se llevó a cabo la estimación y el mapeo de la biomasa del base principal para generar el mapa de biomasa forestal, el cual a su vez quedó integrado en el `modelo de cobertura de copa-biomasa'. La biomasa del rodal para cada sitio fue calculada a partir del

  15. Southern Hemisphere Additional Ozonesondes (SHADOZ) 19982000 tropical ozone climatology

    E-Print Network [OSTI]

    Thompson, Anne

    ozone record from Paramaribo, Surinam (6°N, 55°W) (also in SHADOZ) shows a marked contrast to southern tropical ozone because Surinam is often north of the Intertropical Convergence Zone (ITCZ). A more

  16. The Political Economy of Deforestation in the Tropics

    E-Print Network [OSTI]

    Burgess, Robin

    Tropical deforestation accounts for almost one-fifth of greenhouse gas emissions and threatens the world’s most diverse ecosystems. Much of this deforestation is driven by illegal logging. We use novel satellite data that ...

  17. Commercial Building HVAC Energy Usage in Semi-Tropical Climates

    E-Print Network [OSTI]

    Worbs, H. E.

    1987-01-01T23:59:59.000Z

    The design of heating and cooling equipment in semi-tropical climates presents some design considerations and limitations not so prevalent in temperate climates. In some cases, the heating season may be non-existent for all practical purposes...

  18. american tropical cyclone: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    24 25 Next Page Last Page Topic Index 21 Cross-equatorial influences of a South American cold surge on the development of two eastern North Pacific tropical cyclones Texas A&M...

  19. Eddy formation and propagation in the eastern tropical Pacific

    E-Print Network [OSTI]

    Jhingran, Vikas Gopal

    1997-01-01T23:59:59.000Z

    Observations of eddies in the eastern tropical Pacific from TOPEX altimetry data show that there are seasonal and interannual variations in eddy activity. Comparisons between time of eddy formation and corresponding wind data show that not all...

  20. Reduction of tropical land region precipitation variability via transpiration

    E-Print Network [OSTI]

    Lee, Jung-Eun

    Tropical rainforests are known to exhibit low intraseasonal precipitation variability compared with oceanic areas with similar mean precipitation in observations and models. In the present study, the potential role of ...

  1. annual tropical cyclone: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    SEASONAL AND MONTHLY FORECASTS Geosciences Websites Summary: 10 12.25 8 5.75 Accumulated Cyclone Energy (ACE) (96.2) 130 170 170 150 148 100 68 Net Tropical't press us too hard on...

  2. Surface Fluxes and Tropical Intraseasonal Variability: a Reassessment

    E-Print Network [OSTI]

    Ribes, Aurélien

    and Department of Earth and Environmental Sciences, Columbia University, New York, New York, USA 2 Department whose essential features -- its existence, energetics, spatial and temporal scales -- remain so be fundamental similarities in their energetics. General circulation models (GCMs) simulate tropical

  3. WMO/CAS/WWW SIXTH INTERNATIONAL WORKSHOP on TROPICAL CYCLONES

    E-Print Network [OSTI]

    Colorado at Boulder, University of

    to Human and Economic Losses Rapporteur: Roger A. Pielke, Jr. Center for Science and Technology Policy.2.3 Tropical cyclone case studies a) India b) Australia c) United States 5.2.4 Differing views of the role

  4. Effects of Forest Harvesting and Regeneration on Peak Streamflow

    E-Print Network [OSTI]

    Effects of Forest Harvesting and Regeneration on Peak Streamflow in a Coastal Watershed By Robert Harvesting and Regeneration on Peak Streamflow in a Coastal Watershed. Research Section, Vancouver Forest to harvest timber on Crown lands--is re-invested in the forests, forest workers, and forest communities

  5. LITHUANIAN FOREST RESEARCH INSTITUTE Studies on forestry, technology and

    E-Print Network [OSTI]

    production in Rokiskis forest enterprise Final report Financed by Swedish Energy Agency Girionys ­ 2002 http1 LITHUANIAN FOREST RESEARCH INSTITUTE Studies on forestry, technology and economy of forest fuel ...........................................................................................................................................1 1. ASSESSMENT OF FOREST FUEL RESOURCES IN ROKISKIS FOREST ENTERPRISE (A.Kuliesis, J

  6. COLORADO STATEWIDE FOREST RESOURCE ASSESSMENTCOLORADO STATEWIDE FOREST RESOURCE ASSESSMENTCOLORADO STATEWIDE FOREST RESOURCE ASSESSMENTCOLORADO STATEWIDE FOREST RESOURCE ASSESSMENT CFRI Conference onCFRI Conference onCFRI Conference onCFRI Conference on W

    E-Print Network [OSTI]

    STATEWIDE FOREST RESOURCE ASSESSMENTCOLORADO STATEWIDE FOREST RESOURCE ASSESSMENT CFRI Conference on.outcomes on the ground.outcomes on the ground. o Foundation = Statewide Forest Resource AssessmentsFoundation = Statewide Forest Resource AssessmentsFoundation = Statewide Forest Resource AssessmentsFoundation = Statewide

  7. 2013 Colorado Forest Health Report 2013 Report on the

    E-Print Network [OSTI]

    2013 Colorado Forest Health Report 2013 Report on the Health of Colorado's Forests Caring Timm Schaubert, Outreach Division Supervisor. Thanks also to William M. Ciesla, Forest Health;A January 2014 2013 Colorado Forest Health Report As your new Colorado State Forester, it is my

  8. Power Conversion APEX Interim Report November, 1999

    E-Print Network [OSTI]

    California at Los Angeles, University of

    , the combined efficiency of the topping cycle and bottoming cycle will be less than the single cycle along. POWER CONVERSION 17.1 Steam Cycle Different steam cycles have been well developed. A study by EPRI summarized the various advanced steam cycles which maybe available for an advanced coal power plant

  9. Biomass Thermochemical Conversion Program. 1984 annual report

    SciTech Connect (OSTI)

    Schiefelbein, G.F.; Stevens, D.J.; Gerber, M.A.

    1985-01-01T23:59:59.000Z

    The objective of the program is to generate scientific data and conversion process information that will lead to establishment of cost-effective process for converting biomass resources into clean fuels. The goal of the program is to develop the data base for biomass thermal conversion by investigating the fundamental aspects of conversion technologies and by exploring those parameters that are critical to the conversion processes. The research activities can be divided into: (1) gasification technology; (2) liquid fuels technology; (3) direct combustion technology; and (4) program support activities. These activities are described in detail in this report. Outstanding accomplishments during fiscal year 1984 include: (1) successful operation of 3-MW combustor/gas turbine system; (2) successful extended term operation of an indirectly heated, dual bed gasifier for producing medium-Btu gas; (3) determination that oxygen requirements for medium-Btu gasification of biomass in a pressurized, fluidized bed gasifier are low; (4) established interdependence of temperature and residence times on biomass pyrolysis oil yields; and (5) determination of preliminary technical feasibility of thermally gasifying high moisture biomass feedstocks. A bibliography of 1984 publications is included. 26 figs., 1 tab.

  10. Thermochemical Conversion Pilot Plant (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2013-06-01T23:59:59.000Z

    The state-of-the-art thermochemical conversion pilot plant includes several configurable, complementary unit operations for testing and developing various reactors, filters, catalysts, and other unit operations. NREL engineers and scientists as well as clients can test new processes and feedstocks in a timely, cost-effective, and safe manner to obtain extensive performance data on processes or equipment.

  11. Soft materials for linear electromechanical energy conversion

    E-Print Network [OSTI]

    Antal Jakli; Nandor Eber

    2014-07-29T23:59:59.000Z

    We briefly review the literature of linear electromechanical effects of soft materials, especially in synthetic and biological polymers and liquid crystals (LCs). First we describe results on direct and converse piezoelectricity, and then we discuss a linear coupling between bending and electric polarization, which maybe called bending piezoelectricity, or flexoelectricity.

  12. Existing potato markers and marker conversions

    E-Print Network [OSTI]

    Douches, David S.

    Existing potato markers and marker conversions Walter De Jong PAA Workshop August 2009 1 #12;What of us will continue to use agarose gels for years to come #12;Example of a potato marker 4 PVY (Ryadg) ­ Kasai et al. 2000 Genome 43:1-8 allele specific amplification of a diagnostic product - potatoes

  13. IntroductiontoProcessEngineering(PTG) conversion, balances,

    E-Print Network [OSTI]

    Zevenhoven, Ron

    #3/6 IntroductiontoProcessEngineering(PTG) VST rz13 1/118 3. Energy conversion, balances rz13 2/118 3.1: Energy #12;#3/6 IntroductiontoProcessEngineering(PTG) VST rz13 3/118 What is energy? · "Energy is any quantity that changes the state of a closed system when crossing the system boundary" (SEHB

  14. Ocean Thermal Energy Conversion Mostly about USA

    E-Print Network [OSTI]

    Ocean Thermal Energy Conversion History Mostly about USA 1980's to 1990's and bias towards Vega Structures (Plantships) · Bottom-Mounted Structures · Model Basin Tests/ At-Sea Tests · 210 kW OC-OTEC) #12;#12;Claude's Off Rio de Janeiro (1933) · Floating Ice Plant: 2.2 MW OC- OTEC to produce 2000

  15. NAVFAC Ocean Thermal Energy Conversion (OTEC) Project

    E-Print Network [OSTI]

    NAVFAC Ocean Thermal Energy Conversion (OTEC) Project Contract Number N62583-09-C-0083 CDRL A014 OTEC Mini-Spar Pilot Plant 9 December 2011 OTEC-2011-001-4 Prepared for: Naval Facilities; distribution is unlimited. #12; Configuration Report and Development Plan Volume 4 Site Specific OTEC

  16. Materials for coal conversion and utilization

    SciTech Connect (OSTI)

    Not Available

    1980-01-01T23:59:59.000Z

    The Fifth Annual Conference on Materials for Coal Conversion and Utilization was held October 7-9, 1980, at the National Bureau of Standards, Gaithersburg, Maryland. Sixty-six papers have been entered individually into ERA and EDB; two had been entered previously from other sources. (LTN)

  17. Energy Conversion: Solid-State Lighting

    E-Print Network [OSTI]

    8 Energy Conversion: Solid-State Lighting E. Kioupakis1,2 , P. Rinke1,3 , A. Janotti1 , Q. Yan1 fraction of the world's energy resources [1]. Lighting has been one of the earliest applications. The inefficiency of existing light sources that waste most of the power they consume is the reason for this large

  18. Steam Plant Conversion Eliminating Campus Coal Use

    E-Print Network [OSTI]

    Dai, Pengcheng

    Steam Plant Conversion Eliminating Campus Coal Use at the Steam Plant #12;· Flagship campus region produce 14% of US coal (TN only 0.2%) Knoxville and the TN Valley #12;· UT is one of about 70 U.S. colleges and universities w/ steam plant that burns coal · Constructed in 1964, provides steam for

  19. National Forest ent of Energy

    E-Print Network [OSTI]

    XY! Santa Fe National Forest Departm ent of Energy 00-011(c) R-SMA-2.05 191.140 Acres R00406030003 juniper bale R00406030002 juniper bale R00402040005 established vegetation, green hatch area 7100 7100! R-SMA-0.5 0.181 Acres R-SMA-2.05 191.140 Acres C-00-020 00-011(e)00-011(c) Rendija Canyon Guaje

  20. Beaver Monitoring Protocol for Forest Service Region 2 Revised May 2008 1 USDA FOREST SERVICE REGION 2

    E-Print Network [OSTI]

    Beck, Jeffrey L.

    HILLS NATIONAL FORESTS (Photo from Nature of New England Website ­ http Black Hills National Forest, USDA Forest Service, Custer, SD Revised May 2008 #12;Beaver MonitoringBeaver Monitoring Protocol for Forest Service Region 2 ­ Revised May 2008 1 USDA FOREST SERVICE

  1. The Tropical Brown Alga Lobophora variegata (Lamouroux) Womersley: A Prospective Bioindicator for Ag Contamination in Tropical Coastal Waters

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    The Tropical Brown Alga Lobophora variegata (Lamouroux) Womersley: A Prospective Bioindicator determined in the brown alga Lobophora variegata, using radiotracer techniques. Results indicate that this widely distributed alga could be a useful bioindicator species for surveying silver contamination

  2. Response of tropical sea surface temperature, precipitation, and tropical cyclone-related variables to changes in global and local forcing

    E-Print Network [OSTI]

    Sobel, Adam

    A single-column model is used to estimate the equilibrium response of sea surface temperature (SST), precipitation, and several variables related to tropical cyclone (TC) activity to changes in both local and global forcing. ...

  3. Illegal logging threatens Congo's forests, global climate Illegal logging threatens Congo's forests, global climate

    E-Print Network [OSTI]

    contracts with logging companies covering more than 15 million hectares of forest," the report stated with logging companies instead giving villages gifts of salt and beer worth less than $100. "In a contextIllegal logging threatens Congo's forests, global climate Illegal logging threatens Congo's forests

  4. China's forest products trade falls nearly 18% China's forest products trade falls nearly 18%

    E-Print Network [OSTI]

    China's forest products trade falls nearly 18% China's forest products trade falls nearly 18% 11/08/2009 - 09:05 According to China's latest Customs statistics, foreign trade of China's forest products in the first five months showed a year-on-year general downturn. The total value of foreign trade of China

  5. Increasing carbon dioxideIncreasing carbon dioxide & its effect on forest& its effect on forest

    E-Print Network [OSTI]

    Gray, Matthew

    ecosystem's natural capacity toA forest ecosystem's natural capacity to capture energy, capture energy's natural capacity toA forest ecosystem's natural capacity to capture energy, capture energy, sustain life10/13/2010 1 Increasing carbon dioxideIncreasing carbon dioxide & its effect on forest& its effect

  6. APPENDIX C Colorado Statewide Forest Resource Assessment Protect Forests From Harm

    E-Print Network [OSTI]

    1 APPENDIX C ­ Colorado Statewide Forest Resource Assessment Data Gaps Protect Forests From Harm o. Enhance Public Benefits from Trees and Forests o Water Supply Need data that will allow assessment Economic Opportunities Need a state level assessment of biomass supply for both wood products

  7. Occurrences of forest butterflies in the farm bush savannah outside a forest

    E-Print Network [OSTI]

    Bossart, Janice L.

    , uncovered two broad community types, i.e. forest (edge plus 80 m inside) and matrix. Relative fidelity commonly trapped in the matrix. Although forest generalists and dry forest species were expected to be more., 1992; Poorter et al., 2004; although see Fairhead and Leach, 2002). This human transform- ation of what

  8. NATURAL RESOURCES CONSERVATION FOREST ECOLOGY & CONSERVATION

    E-Print Network [OSTI]

    Schweik, Charles M.

    NATURAL RESOURCES CONSERVATION FOREST ECOLOGY & CONSERVATION For students entering after 8 in Conservation; courses in Sociology, Anthropology, Public Policy, GIS, Remote Sensing; at the direction

  9. Foresters for the Birds In New Hampshire

    E-Print Network [OSTI]

    New Hampshire, University of

    )townhallwillbeonthe left. Foresters fortheBirds InNewHampshire September27,2013 8am-3:30pm SullivanTownHalland Maynard

  10. EAST TEXAS FOREST INVENTORY (ETFI) PILOT PROJECT REMOTE SENSING PHASE

    E-Print Network [OSTI]

    Hung, I-Kuai

    EAST TEXAS FOREST INVENTORY (ETFI) PILOT PROJECT REMOTE SENSING PHASE Dr. Daniel R. Unger, Remote) or the United States Forest Service (USFS) via the Southern Forest Inventory and Analysis Program (SFIA

  11. Why Brazilian companies are certifying their forests? Michelle Araujo 1

    E-Print Network [OSTI]

    Why Brazilian companies are certifying their forests? Michelle Araujo 1 , Shashi Kant , Laercio adoption by Brazilian companies. Furthermore, companies' familiarity with certification systems, external influences on pursuing forest certification, and companies' intention to recertify their forests

  12. Department of Forest and Wood Science Academic Programmes for 2014

    E-Print Network [OSTI]

    Geldenhuys, Jaco

    Department of Forest and Wood Science Academic Programmes for 2014 Postgraduate Diploma Enquiries: Head of Department Contact details: Department of Forest and Wood Science Stellenbosch University;Department of Forest and Wood Science - 2012 2 Contents: Postgraduate Programmes Postgraduate Diploma

  13. FOREST PRODUCTS MARKET IN 2007 AND PROSPECTS FOR 2008

    E-Print Network [OSTI]

    1 FOREST PRODUCTS MARKET IN 2007 AND PROSPECTS FOR 2008 IN ROMANIA 1.General economic trends affecting the forest and forest industries sector In Romania, the year 2007 represents the sixth consecutive

  14. Novel Nuclear Powered Photocatalytic Energy Conversion

    SciTech Connect (OSTI)

    White,John R.; Kinsmen,Douglas; Regan,Thomas M.; Bobek,Leo M.

    2005-08-29T23:59:59.000Z

    The University of Massachusetts Lowell Radiation Laboratory (UMLRL) is involved in a comprehensive project to investigate a unique radiation sensing and energy conversion technology with applications for in-situ monitoring of spent nuclear fuel (SNF) during cask transport and storage. The technology makes use of the gamma photons emitted from the SNF as an inherent power source for driving a GPS-class transceiver that has the ability to verify the position and contents of the SNF cask. The power conversion process, which converts the gamma photon energy into electrical power, is based on a variation of the successful dye-sensitized solar cell (DSSC) design developed by Konarka Technologies, Inc. (KTI). In particular, the focus of the current research is to make direct use of the high-energy gamma photons emitted from SNF, coupled with a scintillator material to convert some of the incident gamma photons into photons having wavelengths within the visible region of the electromagnetic spectrum. The high-energy gammas from the SNF will generate some power directly via Compton scattering and the photoelectric effect, and the generated visible photons output from the scintillator material can also be converted to electrical power in a manner similar to that of a standard solar cell. Upon successful implementation of an energy conversion device based on this new gammavoltaic principle, this inherent power source could then be utilized within SNF storage casks to drive a tamper-proof, low-power, electronic detection/security monitoring system for the spent fuel. The current project has addressed several aspects associated with this new energy conversion concept, including the development of a base conceptual design for an inherent gamma-induced power conversion unit for SNF monitoring, the characterization of the radiation environment that can be expected within a typical SNF storage system, the initial evaluation of Konarka's base solar cell design, the design and fabrication of a range of new cell materials and geometries at Konarka's manufacturing facilities, and the irradiation testing and evaluation of these new cell designs within the UML Radiation Laboratory. The primary focus of all this work was to establish the proof of concept of the basic gammavoltaic principle using a new class of dye-sensitized photon converter (DSPC) materials based on KTI's original DSSC design. In achieving this goal, this report clearly establishes the viability of the basic gammavoltaic energy conversion concept, yet it also identifies a set of challenges that must be met for practical implementation of this new technology.

  15. High Tonnage Forest Biomass Production Systems from Southern...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    High Tonnage Forest Biomass Production Systems from Southern Pine Energy Plantations High Tonnage Forest Biomass Production Systems from Southern Pine Energy Plantations This...

  16. High Tonnage Forest Biomass Production Systems from Southern...

    Broader source: Energy.gov (indexed) [DOE]

    Biomass Program Review High Tonnage Forest Biomass Production Systems from Southern Pine Energy Plantations DE-EE0001036 S. Taylor (Auburn University), R. Rummer (USDA Forest...

  17. A Design-Builder's Perspective: Anaerobic Digestion, Forest County...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    A Design-Builder's Perspective: Anaerobic Digestion, Forest County Potawatomi Community - A Case Study A Design-Builder's Perspective: Anaerobic Digestion, Forest County Potawatomi...

  18. Nature Climate Change features Los Alamos forest research

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Nature Climate Change Features Forest Research Nature Climate Change features Los Alamos forest research The print issue features as its cover story the tree-stress research of...

  19. Forest County Potawatomi Tribe Cuts Emissions, Promotes Green...

    Energy Savers [EERE]

    Emissions, Promotes Green Growth Forest County Potawatomi Tribe Cuts Emissions, Promotes Green Growth February 23, 2012 - 6:29pm Addthis The Forest County Potawatomi Tribe's solar...

  20. Rising global temperatures accelerate drought-induced forest...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    up," thus the researchers are imposing artificial drought conditions on segments of wild forest in the Southwest and pushing forests to their limit to discover the exact...

  1. The economics of carbon sequestration in western Oregon forests.

    E-Print Network [OSTI]

    Im, Eun Ho

    2007-01-01T23:59:59.000Z

    ??This study considered regional forest policies for sequestering carbon in existing forests in western Oregon. A model of log markets in western Oregon was employed… (more)

  2. Direct Conversion of Biomass to Fuel | ornl.gov

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Direct Conversion of Biomass to Fuel UGA, ORNL research team engineers microbes for the direct conversion of biomass to fuel July 11, 2014 New research from the University of...

  3. Automotive Waste Heat Conversion to Electric Power using Skutterudites...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Waste Heat Conversion to Electric Power using Skutterudites, TAGS, PbTe and Bi2Te3 Automotive Waste Heat Conversion to Electric Power using Skutterudites, TAGS, PbTe and Bi2Te3...

  4. Genetic diversity and combining ability among sorghum conversion lines

    E-Print Network [OSTI]

    Mateo Moncada, Rafael Arturo

    2007-04-25T23:59:59.000Z

    on genetic similarities estimated using AFLP markers and (3) to estimate heterosis, general and specific combining ability for grain yield among the set of conversion lines. Genetic diversity was present in the set of conversion lines evaluated. For the lines...

  5. Thermoelectrici Conversion of Waste Heat to Electricity in an...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Thermoelectrici Conversion of Waste Heat to Electricity in an IC Engine-Powered Vehicle Thermoelectrici Conversion of Waste Heat to Electricity in an IC Engine-Powered Vehicle 2005...

  6. Cross section generation strategy for high conversion light water reactors

    E-Print Network [OSTI]

    Herman, Bryan R. (Bryan Robert)

    2011-01-01T23:59:59.000Z

    High conversion water reactors (HCWR), such as the Resource-renewable Boiling Water Reactor (RBWR), are being designed with axial heterogeneity of alternating fissile and blanket zones to achieve a conversion ratio of ...

  7. Thermoelectric Conversion of Waste Heat to Electricity in an...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    be 500 oC deer09schock.pdf More Documents & Publications Thermoelectric Conversion of Waste Heat to Electricity in an IC Engine Powered Vehicle Thermoelectric Conversion of...

  8. OCEAN THERMAL ENERGY CONVERSION (OTEC) PROGRAMMATIC ENVIRONMENTAL ANALYSIS

    E-Print Network [OSTI]

    Sands, M. D.

    2011-01-01T23:59:59.000Z

    for the commercialization of ocean thermal energy conversionOpen cycle ocean thermal energy conversion. A preliminary1978. 'Open cycle thermal energy converS1on. A preliminary

  9. Direct conversion of algal biomass to biofuel

    SciTech Connect (OSTI)

    Deng, Shuguang; Patil, Prafulla D; Gude, Veera Gnaneswar

    2014-10-14T23:59:59.000Z

    A method and system for providing direct conversion of algal biomass. Optionally, the method and system can be used to directly convert dry algal biomass to biodiesels under microwave irradiation by combining the reaction and combining steps. Alternatively, wet algae can be directly processed and converted to fatty acid methyl esters, which have the major components of biodiesels, by reacting with methanol at predetermined pressure and temperature ranges.

  10. Nominal Performance Biosphere Dose Conversion Factor Analysis

    SciTech Connect (OSTI)

    M. Wasiolek

    2004-09-08T23:59:59.000Z

    This analysis report is one of the technical reports containing documentation of the Environmental Radiation Model for Yucca Mountain, Nevada (ERMYN), a biosphere model supporting the Total System Performance Assessment (TSPA) for the license application (LA) for the Yucca Mountain repository. This analysis report describes the development of biosphere dose conversion factors (BDCFs) for the groundwater exposure scenario, and the development of conversion factors for assessing compliance with the groundwater protection standard. A graphical representation of the documentation hierarchy for the ERMYN is presented in Figure 1-1. This figure shows the interrelationships among the products (i.e., analysis and model reports) developed for biosphere modeling and provides an understanding of how this analysis report contributes to biosphere modeling. This report is one of two reports that develop biosphere BDCFs, which are input parameters for the TSPA-LA model. The ''Biosphere Model Report'' (BSC 2004 [DIRS 169460]) describes in detail the ERMYN conceptual model and mathematical model. The input parameter reports, shown to the right of the ''Biosphere Model Report'' in Figure 1-1, contain detailed description of the model input parameters, their development, and the relationship between the parameters and specific features events and processes (FEPs). This report describes biosphere model calculations and their output, the BDCFs, for the groundwater exposure scenario. The objectives of this analysis are to develop BDCFs for the groundwater exposure scenario for the three climate states considered in the TSPA-LA as well as conversion factors for evaluating compliance with the groundwater protection standard. The BDCFs will be used in performance assessment for calculating all-pathway annual doses for a given concentration of radionuclides in groundwater. The conversion factors will be used for calculating gross alpha particle activity in groundwater and the annual dose from drinking water for beta- and photon-emitting radionuclides. Another objective of this analysis was to re-qualify the output of the previous revision (BSC 2003 [DIRS 164403]).

  11. Materials for coal conversion and utilization

    SciTech Connect (OSTI)

    None,

    1981-01-01T23:59:59.000Z

    The Sixth annual conference on materials for coal conversion and utilization was held October 13-15, 1981 at the National Bureau of Standards Gaithersburg, Maryland. It was sponsored by the US Department of Energy, the Electric Power Research Institute, the Gas Research Institute and the National Bureau of Standards. Fifty-eight papers from the proceedings have been entered individually into EDB and ERA; four papers had been entered previously from other sources. (LTN)

  12. Biofuel Conversion Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:Year in Review: Top Five EEREDepartmentFebruary 4, 2014 BioenergyDepartmentforBiofuel Conversion

  13. Nanostructured High-Temperature Bulk Thermoelectric Energy Conversion...

    Broader source: Energy.gov (indexed) [DOE]

    More Documents & Publications Nanostructured High-Temperature Bulk Thermoelectric Energy Conversion for Efficient Automotive Waste Heat Recovery Vehicle Technologies Office...

  14. Resource Limits and Conversion Efficiency with Implications for Climate Change

    E-Print Network [OSTI]

    Croft, Gregory Donald

    2009-01-01T23:59:59.000Z

    Repowering Project, Clean Coal Topical Report Number 20,P. and Nel, H. G. 2004, Clean coal conversion options using

  15. Flexible Conversion Ratio Fast Reactor Systems Evaluation

    SciTech Connect (OSTI)

    Neil Todreas; Pavel Hejzlar

    2008-06-30T23:59:59.000Z

    Conceptual designs of lead-cooled and liquid salt-cooled fast flexible conversion ratio reactors were developed. Both concepts have cores reated at 2400 MWt placed in a large-pool-type vessel with dual-free level, which also contains four intermediate heat exchanges coupling a primary coolant to a compact and efficient supercritical CO2 Brayton cycle power conversion system. Decay heat is removed passively using an enhanced Reactor Vessel Auxiliary Cooling System and a Passive Secondary Auxiliary Cooling System. The most important findings were that (1) it is feasible to design the lead-cooled and salt-cooled reactor with the flexible conversion ratio (CR) in the range of CR=0 and CR=1 n a manner that achieves inherent reactor shutdown in unprotected accidents, (2) the salt-cooled reactor requires Lithium thermal Expansion Modules to overcme the inherent salt coolant's large positive coolant temperature reactivity coefficient, (3) the preferable salt for fast spectrum high power density cores is NaCl-Kcl-MgCl2 as opposed to fluoride salts due to its better themal-hydraulic and neutronic characteristics, and (4) both reactor, but attain power density 3 times smaller than that of the sodium-cooled reactor.

  16. E2I EPRI Assessment Offshore Wave Energy Conversion Devices

    E-Print Network [OSTI]

    E2I EPRI Assessment Offshore Wave Energy Conversion Devices Report: E2I EPRI WP ­ 004 ­ US ­ Rev 1 #12;E2I EPRI Assessment - Offshore Wave Energy Conversion Devices Table of Contents Introduction Assessment - Offshore Wave Energy Conversion Devices Introduction E2I EPRI is leading a U.S. nationwide

  17. Method for conversion of .beta.-hydroxy carbonyl compounds

    DOE Patents [OSTI]

    Lilga, Michael A. (Richland, WA); White, James F. (Richland, WA); Holladay, Johnathan E. (Kennewick, WA); Zacher, Alan H. (Kennewick, WA); Muzatko, Danielle S. (Kennewick, WA); Orth, Rick J. (Kennewick, WA)

    2010-03-30T23:59:59.000Z

    A process is disclosed for conversion of salts of .beta.-hydroxy carbonyl compounds forming useful conversion products including, e.g., .alpha.,.beta.-unsaturated carbonyl compounds and/or salts of .alpha.,.beta.-unsaturated carbonyl compounds. Conversion products find use, e.g., as feedstock and/or end-use chemicals.

  18. Canada's National Forest Inventory An Interagency Collaboration

    E-Print Network [OSTI]

    Canada's National Forest Inventory An Interagency Collaboration Mark Gillis and Michael Brady: · Timber supply analysis · Management unit planning Management Inventory #12;· Canada's NFI-2001 ­ NFI 2006... National Inventory #12;Canada's National Forest Inventory (1976-2001) ­ compilation

  19. FOREST HEALTH DAY Thursday 20 September 2012

    E-Print Network [OSTI]

    Sarah Green, Forest Research 1130 - Comfort break (Tea/Coffee) 1145 - Insect pests of trees in Scotland 272440 There will be no charge for this event. Tea, coffee and a light lunch will be provided and disease issues in the field. #12;FOREST HEALTH DAY 0930 - Registration, tea/coffee 1000 - Welcome

  20. ORIGINAL PAPER Contribution of forest management artefacts

    E-Print Network [OSTI]

    Boyer, Edmond

    ORIGINAL PAPER Contribution of forest management artefacts to plant diversity at a forest scale.3% were within 4 m of an artefact and 8.4% were located on an artefact. The artefact contribution to total included or not in the artefact contribution. Road verges were the least frequent artefacts but provided

  1. "ECONOMIC ANALYSES OF SUSTAINABLE FOREST MANAGEMENT

    E-Print Network [OSTI]

    Gray, Matthew

    implications · An alternative view of SFM · Analysis IntroductionIntroduction · Forests produce multiple products and services including timber, wildlife habitat, species bio- and genetic diversity, water quality and control, waste remediation, recreation, and carbon sequestration. #12;· In economics, forests are analyzed

  2. The North American Forest Sector Outlook Study

    E-Print Network [OSTI]

    to consumption patterns for wood products and bioenergy. Markets for wood products, which mainly are destined for packaging and miscellaneous uses will continue to enjoy strong global demand. Keywords Bioenergy, biomass, forest products, forest resources, future, GDP, globalization, import, increment, IPCC, markets

  3. Classifying forest productivity at different scales

    SciTech Connect (OSTI)

    Graham, R.L.

    1991-01-01T23:59:59.000Z

    Spatial scale is an important consideration when evaluating, using, or constructing forest productivity classifications. First, the factors which dominate spatial variability in forest productivity are scale dependent. For example, within a stand, spatial variability in productivity is dominated by microsite differences; within a national forest such as the Cherokee National Forest, spatial variability is dominated by topography and land-use history (e.g., years since harvest); within a large region such as the southeast, spatial variability is dominated by climatic patterns. Second, classifications developed at different spatial scales are often used for different purposes. For example, stand-level classifications are often keys or rules used in the field to judge the quality or potential of a site. National-forest classifications are often presented as maps or tables and may be used in forest land planning. Regional classifications may be maps or tables and may be used to quantify or predict resource availability. These scale-related differences in controlling factors and purposes will affect both the methods and the data used to develop classifications. In this paper, I will illustrate these points by describing and comparing three forest productivity classifications, each developed for a specific purpose at a specific scale. My objective is not to argue for or against any of these particular classifications but rather to heighten awareness of the critical role that spatial scale plays in the use and development of forest productivity classifications. 8 refs., 2 figs., 1 tab.

  4. NATURAL RESOURCES CONSERVATION FOREST ECOLOGY & CONSERVATION

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    NATURAL RESOURCES CONSERVATION FOREST ECOLOGY & CONSERVATION For students entering after 8 for the Forest Ecology & Conservation curriculum total 93 credits. This curriculum meets the Society of American & Conservation concentration. Two of these three courses must have the additional Diversity (U and G) designation

  5. NATURAL RESOURCES CONSERVATION Forest Ecology & Conservation

    E-Print Network [OSTI]

    Schweik, Charles M.

    NATURAL RESOURCES CONSERVATION Forest Ecology & Conservation Fall Semester Spring Semester First Conservation 3 BCT 150 The Built Envir. 4 NRC 211 Animal Sampling & Ident. 1 NRC 212 Forest Tree & Shrub ID 1 forestry; NRC 575 Case Studies in Conservation; courses in Sociology, Anthropology, Public Policy, GIS

  6. "The Queen Elizabeth Forest Park (QEFP) was

    E-Print Network [OSTI]

    "The Queen Elizabeth Forest Park (QEFP) was designated by the Forestry Commission in 1953 to mark the coronation of Queen Elizabeth. It attracts over a million visitors a year to its stunning landscape of forest, mountain, moorland and lochs that stretches from the east shore of Loch Lomond to the hills of Strathyre

  7. Forest Research Annual Report and Accounts

    E-Print Network [OSTI]

    , comprising a total value of £1.4 billion (2 billion), the bulk of which is produced by European forest tree stock in an inactive condition for extended periods, and to ensure plant quality where supply. #12;Forest Research Annual Report and Accounts 2004­2005 41 Assessing seedling quality Despite

  8. Forest Research No. 36 March 2007

    E-Print Network [OSTI]

    Forest Research No. 36 March 2007 EcotypeThe Biodiversity and Conservation Newsletter of Ecology style of newsletter will please our readership. Ecotype has been the Biodiversity and Conservation to include information from many other projects related to forest biodiversity and conservation management

  9. Guidelines on local European forest energy

    E-Print Network [OSTI]

    Pettenella, Davide

    -European: MCPFE ­EU: Forest Action Plan, Rural Development Policy, Renewable Energy Policy EU Renewable Energy1 Guidelines on local European forest energy networks THE SOCIO-ECONOMIC DIMENSION Davide-economic consideration B. Micro-economic consideration 3. A synthesis: SWOT analysis of the wood energy chain 1

  10. Nominal Performance Biosphere Dose Conversion Factor Analysis

    SciTech Connect (OSTI)

    M.A. Wasiolek

    2005-04-28T23:59:59.000Z

    This analysis report is one of the technical reports containing documentation of the Environmental Radiation Model for Yucca Mountain, Nevada (ERMYN), a biosphere model supporting the Total System Performance Assessment (TSPA) for the license application (LA) for the Yucca Mountain repository. This analysis report describes the development of biosphere dose conversion factors (BDCFs) for the groundwater exposure scenario, and the development of conversion factors for assessing compliance with the groundwater protection standards. A graphical representation of the documentation hierarchy for the ERMYN is presented in Figure 1-1. This figure shows the interrelationships among the products (i.e., analysis and model reports) developed for biosphere modeling and provides an understanding of how this analysis report contributes to biosphere modeling. This report is one of two reports that develop BDCFs, which are input parameters for the TSPA-LA model. The ''Biosphere Model Report'' (BSC 2004 [DIRS 169460]) describes in detail the ERMYN conceptual model and mathematical model. The input parameter reports, shown to the right of the ''Biosphere Model Report'' in Figure 1-1, contain detailed description of the model input parameters, their development, and the relationship between the parameters and specific features events and processes (FEPs). This report describes biosphere model calculations and their output, the BDCFs, for the groundwater exposure scenario. This analysis receives direct input from the outputs of the ''Biosphere Model Report'' (BSC 2004 [DIRS 169460]) and the five analyses that develop parameter values for the biosphere model (BSC 2005 [DIRS 172827]; BSC 2004 [DIRS 169672]; BSC 2004 [DIRS 169673]; BSC 2004 [DIRS 169458]; BSC 2004 [DIRS 169459]). The results of this report are further analyzed in the ''Biosphere Dose Conversion Factor Importance and Sensitivity Analysis'' (Figure 1-1). The objectives of this analysis are to develop BDCFs for the groundwater exposure scenario for the three climate states (present day, monsoon, and glacial transition) considered in the TSPA-LA, as well as conversion factors for compliance evaluation with the groundwater protection standards. The BDCFs will be used in performance assessment for calculating all-pathway annual doses for a given concentration of radionuclides in groundwater. The conversion factors will be used for calculating gross alpha particle activity in groundwater and the annual dose from drinking water for beta- and photon-emitting radionuclides.

  11. Power Control and Optimization of Photovoltaic and Wind Energy Conversion Systems /

    E-Print Network [OSTI]

    Ghaffari, Azad

    2013-01-01T23:59:59.000Z

    77 5.2 Wind Energy Conversion System . . . . .Optimization and Control in Wind Energy Conversion SystemsAC matrix con- verter for wind energy conversion system,” in

  12. COMMERCIAL FISHERY DATA FROM A PROPOSED OCEAN THERMAL ENERGY CONVERSION (OTEC) SITE IN PUERTO RICO

    E-Print Network [OSTI]

    Ryan, Constance J.

    2013-01-01T23:59:59.000Z

    proposed Ocean Thermal Energy Conversion (OTEC) sites toassessment: ocean thermal energy conversion (OTEC) program;operation of Ocean Thermal Energy Conversion (OTEC) power

  13. A PRELIMINARY EVALUATION OF IMPINGEMENT AND ENTRAINMENT BY OCEAN THERMAL ENERGY CONVERSION (OTEC) PLANTS

    E-Print Network [OSTI]

    Sullivan, S.M.

    2013-01-01T23:59:59.000Z

    Assessment, Ocean Thermal Energy Conversion (OTEC) ProgramAssessment Ocean Thermal Energy Conversion (OTEC), U.S.recommendations for Ocean Thermal Energy Conversion (OTEC)

  14. A PRELIMINARY EVALUATION OF IMPINGEMENT AND ENTRAINMENT BY OCEAN THERMAL ENERGY CONVERSION (OTEC) PLANTS

    E-Print Network [OSTI]

    Sullivan, S.M.

    2013-01-01T23:59:59.000Z

    Assessment, Ocean Thermal Energy Conversion (OTEC) ProgramAssessment Ocean Thermal Energy Conversion (OTEC), U.S.for Ocean Thermal Energy Conversion (OTEC) plants. Argonne,

  15. COMMERCIAL FISHERY DATA FROM A PROPOSED OCEAN THERMAL ENERGY CONVERSION (OTEC) SITE IN PUERTO RICO

    E-Print Network [OSTI]

    Ryan, Constance J.

    2013-01-01T23:59:59.000Z

    assessment: ocean thermal energy conversion (OTEC) program;proposed Ocean Thermal Energy Conversion (OTEC) sites tooperation of Ocean Thermal Energy Conversion (OTEC) power

  16. COMMERCIAL FISHERY DATA FROM A PROPOSED OCEAN THERMAL ENERGY CONVERSION (OTEC) SITE IN PUERTO RICO

    E-Print Network [OSTI]

    Ryan, Constance J.

    2013-01-01T23:59:59.000Z

    at several proposed Ocean Thermal Energy Conversion (OTEC)Environmental assessment: ocean thermal energy conversion (The operation of Ocean Thermal Energy Conversion (OTEC)

  17. Geographic variation in vulnerability to climate warming in a tropical Caribbean lizard

    E-Print Network [OSTI]

    Leal, Manuel S.

    Geographic variation in vulnerability to climate warming in a tropical Caribbean lizard Alex R temperatures (Tb) of the tropical Caribbean lizard Anolis cristatellus at nine sites representing two habitat

  18. Sensitivity of Tropical Cyclone Intensity to Ventilation in an Axisymmetric Model

    E-Print Network [OSTI]

    Tang, Brian

    The sensitivity of tropical cyclone intensity to ventilation of cooler, drier air into the inner core is examined using an axisymmetric tropical cyclone model with parameterized ventilation. Sufficiently strong ventilation ...

  19. Tropical climate variability from the last glacial maximum to the present

    E-Print Network [OSTI]

    Dahl, Kristina Ariel

    2005-01-01T23:59:59.000Z

    This thesis evaluates the nature and magnitude of tropical climate variability from the Last Glacial Maximum to the present. The temporal variability of two specific tropical climate phenomena is examined. The first is the ...

  20. Vertical flux, ecology and dissolution of radiolaria in tropical oceans : implications for the silica cycle

    E-Print Network [OSTI]

    Takahashi, Kozo

    1982-01-01T23:59:59.000Z

    Radiolarians which settle through the oceanic water column were recovered from three stations (western Tropical Atlantic-Station E, central Tropical Pacific-P1 and Panama Basin-PB) using PARFLUX sediment traps in moored ...