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Sample records for gabon mauritania niger

  1. Mauritania | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    Mauritania NNSA Supports IAEA Regional Training in Zambia on Management Practices for Uranium The International Atomic Energy Agency (IAEA), European Commission and National Nuclear Security Administration (NNSA) co-sponsored a training course in Livingstone, Zambia this week focusing on good management practices for uranium ore concentrate (UOC). The Zambia Radiation Protection Authority

  2. Mauritania-IAEA Cooperation | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Agency Sector Energy Topics Background analysis Website http:www-tc.iaea.orgtcwebt Country Mauritania Western Africa References IAEA project database1 IAEA is working...

  3. Mauritania: Energy Resources | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Country Profile Name Mauritania Population 3,537,368 GDP 4,547,000,000 Energy Consumption 0.04 Quadrillion Btu 2-letter ISO code MR 3-letter ISO code MRT Numeric ISO...

  4. Gabon: Energy Resources | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Country Profile Name Gabon Population 1,475,000 GDP 20,664,000,000 Energy Consumption 0.05 Quadrillion Btu 2-letter ISO code GA 3-letter ISO code GAB Numeric ISO...

  5. Gabon-World Bank Climate Activities | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    World Bank Climate Activities Jump to: navigation, search Name Gabon-World Bank Climate Activities AgencyCompany Organization World Bank Sector Land Focus Area Forestry Topics...

  6. Floating oil production unit slated in small field off Gabon

    SciTech Connect

    Not Available

    1991-10-14

    This paper reports on the first U.S. tanker converted to a floating production, storage, and offloading (FPSO) unit which takes up station in Gombe-Beta field off Gabon by Dec. 1. FPSO Ocean Producer will work under a 3 year, day rate contract let late in 1990 by Amoco-Gabon Bombe Marin co., a unit of Amoco Production Co. (OGJ, Dec. 24, 1990, p. 27). Gombe-Beta field is in the Atlantic Ocean about 70 miles south of Port Gentil, Gabon. Ocean Producer will be moored in 50 ft of water 3.7 miles off Gabon, with Bombe-Beta's unmanned production platform about 820 ft astern. The vessel will be held in position by a disconnectable, asymmetric, six point, spread mooring system, It is owned and operated by Oceaneering International Services Ltd. (OISL). Affiliate Oceaneering Production Systems (OPS) converted the 78,061 dwt oil tanker MT Baltimore Sea at a capital cost of $25 million at Gulf Copper Manufacturing Corp.'s Port Arthur, Tex., shipyard. Both companies are units of Oceaneering International Inc., Houston. OPS the Ocean Producer's use in Gombe-Beta field is the shallowest water FPSO application in the world. Amoco-Gabon chose an FPSO production system for Gombe-Beta because it expects the remote field to have a short economic life, and the oil requires extensive processing.

  7. Niger | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    Niger NNSA Supports IAEA Regional Training in Zambia on Management Practices for Uranium The International Atomic Energy Agency (IAEA), European Commission and National Nuclear Security Administration (NNSA) co-sponsored a training course in Livingstone, Zambia this week focusing on good management practices for uranium ore concentrate (UOC). The Zambia Radiation Protection Authority

  8. Niger-IAEA Cooperation | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Agency Sector Energy Topics Background analysis Website http:www-tc.iaea.orgtcwebt Program Start 2007 Country Niger Western Africa References IAEA Project Database1 IAEA...

  9. Niger: Energy Resources | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Tons 59 2008 EIA Natural Gas Reserves 0 Cubic Meters (cu m) 149 2010 CIA World Factbook Oil Reserves 0 Barrels (bbl) 148 2010 CIA World Factbook Energy Maps featuring Niger No...

  10. Niger: Energy Resources | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Country Profile Name Niger Population 17,138,707 GDP 6,022,000,000 Energy Consumption 0.02 Quadrillion Btu 2-letter ISO code NE 3-letter ISO code NER Numeric ISO...

  11. Niger-Pilot Program for Climate Resilience (PPCR) | Open Energy...

    OpenEI (Open Energy Information) [EERE & EIA]

    Pilot Program for Climate Resilience (PPCR) Jump to: navigation, search Name Niger-Pilot Program for Climate Resilience (PPCR) AgencyCompany Organization World Bank Sector...

  12. Turmoil doesn`t dampen enthusiasm

    SciTech Connect

    1997-08-01

    The paper discusses the outlook for the African gas and oil industries. Though Africa remains politically and economically volatile, its vast energy potential is becoming increasingly attractive to foreign oil and gas companies. Separate evaluations are given for Algeria, Egypt, Nigeria, Angola, Libya, Congo, Gabon, Tunisia, Cameroon, Cote D`Ivoire, and briefly for South Africa, Sudan, Equatorial Guinea, Ghana, Zaire, Benin, Mozambique, Chad, Namibia, Tanzania, Eritrea, Guinea-Bissau, Senegal, Morocco, Sao Tome and Principe, Ethiopia, Niger, Madagascar, Rwanda, Mauritania, Seychelles, Uganda, and Liberia.

  13. Mobile Facility Records Annual Climate Cycle in Niger, Africa

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Mobile Facility Records Annual Climate Cycle in Niger, Africa Because dust can block ... These data are being used by scientists to study the nature of dust storms, how far they ...

  14. Atmospheric Radiation Measurement (ARM) Data from Niamey, Niger for the

    Office of Scientific and Technical Information (OSTI)

    Radiative Atmospheric Divergence using AMF, GERB and AMMA Stations (RADAGAST) () | Data Explorer Niamey, Niger for the Radiative Atmospheric Divergence using AMF, GERB and AMMA Stations (RADAGAST) Title: Atmospheric Radiation Measurement (ARM) Data from Niamey, Niger for the Radiative Atmospheric Divergence using AMF, GERB and AMMA Stations (RADAGAST) The Atmospheric Radiation Measurement (ARM) Program is the largest global change research program supported by the U.S. Department of Energy.

  15. Production of extremophilic bacterial cellulase enzymes in aspergillus niger.

    SciTech Connect

    Gladden, John Michael

    2013-09-01

    Enzymes can be used to catalyze a myriad of chemical reactions and are a cornerstone in the biotechnology industry. Enzymes have a wide range of uses, ranging from medicine with the production of pharmaceuticals to energy were they are applied to biofuel production. However, it is difficult to produce large quantities of enzymes, especially if they are non-native to the production host. Fortunately, filamentous fungi, such as Aspergillus niger, are broadly used in industry and show great potential for use a heterologous enzyme production hosts. Here, we present work outlining an effort to engineer A. niger to produce thermophilic bacterial cellulases relevant to lignocellulosic biofuel production.

  16. Regulation of business activities of petroleum contractors in Cameroon, Congo, Gabon, and Ivory Coast

    SciTech Connect

    Frilet, M.; Newman, J.

    1982-03-01

    Foreign companies engaging in business in Cameroon, Congo, Gabon, and Ivory Coast are subject to a broad range of regulations. This article deals only with those aspects of the regulations that are most important to petroleum contractors intending to engage in business in these countries. The regulator scheme actually applicable in a given case will depend on the legal structure through which a corporation operates. An American corporation may envisage engaging in business on a long-term basis through a local subsidiary or branch. On the other hand, it may wish only to perform temporary activities pursuant to one or more fixed-duration contracts with petroleum companies operating in one of countries. Each of these situations is dealt with. Common features of each area of regulation were described and the differences in regulations were presented. These topics were included: exchange control regulation, corporate forms of business association, authorization to engage in business, requirement of government or local participation in capital, investment code incentives, labor law requirements, taxation of corporations, taxation of profits, taxation of income from movable capital, taxation of amounts paid abroad as technical assistance fees, royalties and similar compensation, turnover taxes, payroll taxes, taxation of business performed without forming a local company or branch, taxation of employees and Social Security contributions. (DP)

  17. Africa: the emphasis is exploration

    SciTech Connect

    Not Available

    1980-08-15

    Individual country reports on drilling, oil and gas production, and petroleum exploration and reserves are given for Africa. Nigeria was the continent's largest oil producer in 1979, averaging 2.3 million bpd, followed closely by Libya with 2.07 million bpd. Algeria cut production of crude oil in 1979 to a level of 1,194,350 bpd, and increased gas production to 2031 mmcfd. In Egypt, the return of Israeli-occupied oil fields and a surge in productive capacity enabled production averaging 524,000 bpd. Brief country reports are included for Gabon, Angola, Republic of the Congo, Cameroun, Tunisia, Morocco, Zaire, Ivory Coast, Ghana, Niger, Chad, Republic of South Africa, Sudan, Tanzania, Equatorial Guinea, Seychelles Islands, Mauritania, Republic of Mali, Benin, Kenya, Madagascar, Botswana, Gambia, Mozambique, and Senegal.

  18. Atmospheric Radiation Measurement (ARM) Data from Niamey, Niger for the Radiative Atmospheric Divergence using AMF, GERB and AMMA Stations (RADAGAST)

    DOE Data Explorer

    The Atmospheric Radiation Measurement (ARM) Program is the largest global change research program supported by the U.S. Department of Energy. The primary goal of the ARM Program is to improve the treatment of cloud and radiation physics in global climate models in order to improve the climate simulation capabilities of these models. To achieve this goal, ARM scientists and researchers around the world use continuous data obtained through the ARM Climate Research Facility. The ARM Mobile Facility (AMF) operates at non-permanent sites selected by the ARM Program. Sometimes these sites can become permanent ARM sites, as was the case with Graciosa Island in the Azores. It is now known as the Eastern North Atlantic permanent site. In January 2006 the AMF deployed to Niamey, Niger, West Africa, at the Niger Meteorological Office at Niamey International Airport. This deployment was timed to coincide with the field phases and Special Observing Periods of the African Monsoon Multidisciplinary Analysis (AMMA). The ARM Program participated in this international effort as a field campaign called "Radiative Divergence using AMF, GERB and AMMA Stations (RADAGAST).The primary purpose of the Niger deployment was to combine an extended series of measurements from the AMF with those from the Geostationary Earth Radiation Budget (GERB) Instrument on the Meteosat operational geostationary satellite in order to provide the first well-sampled, direct estimates of the divergence of solar and thermal radiation across the atmosphere. A large collection of data plots based on data streams from specific instruments used at Niamey are available via a link from ARM's Niamey, Niger site information page. Other data can be found at the related websites mentioned above and in the ARM Archive. Users will be requested to create a password, but the plots and data files are free for viewing and downloading. The ARM Archive physically resides at the Oak Ridge National Laboratory.

  19. Comparative genomics of citric-acid producing Aspergillus niger ATCC 1015 versus enzyme-producing CBS 513.88

    SciTech Connect

    Grigoriev, Igor V.; Baker, Scott E.; Andersen, Mikael R.; Salazar, Margarita P.; Schaap, Peter J.; Vondervoot, Peter J.I. van de; Culley, David; Thykaer, Jette; Frisvad, Jens C.; Nielsen, Kristen F.; Albang, Richard; Albermann, Kaj; Berka, Randy M.; Braus, Gerhard H.; Braus-Stromeyer, Susanna A.; Corrochano, Luis M.; Dai, Ziyu; Dijck, Piet W.M. van; Hofmann, Gerald; Lasure, Linda L.; Magnusson, Jon K.; Meijer, Susan L.; Nielsen, Jakob B.; Nielsen, Michael L.; Ooyen, Albert J.J. van; Panther, Kathyrn S.; Pel, Herman J.; Poulsen, Lars; Samson, Rob A.; Stam, Hen; Tsang, Adrian; Brink, Johannes M. van den; Atkins, Alex; Aerts, Andrea; Shapiro, Harris; Pangilinan, Jasmyn; Salamov, Asaf; Lou, Yigong; Lindquist, Erika; Lucas, Susan; Grimwood, Jane; Kubicek, Christian P.; Martinez, Diego; Peij, Noel N.M.E. van; Roubos, Johannes A.; Nielsen, Jens

    2011-04-28

    The filamentous fungus Aspergillus niger exhibits great diversity in its phenotype. It is found globally, both as marine and terrestrial strains, produces both organic acids and hydrolytic enzymes in high amounts, and some isolates exhibit pathogenicity. Although the genome of an industrial enzyme-producing A. niger strain (CBS 513.88) has already been sequenced, the versatility and diversity of this species compels additional exploration. We therefore undertook whole genome sequencing of the acidogenic A. niger wild type strain (ATCC 1015), and produced a genome sequence of very high quality. Only 15 gaps are present in the sequence and half the telomeric regions have been elucidated. Moreover, sequence information from ATCC 1015 was utilized to improve the genome sequence of CBS 513.88. Chromosome-level comparisons uncovered several genome rearrangements, deletions, a clear case of strain-specific horizontal gene transfer, and identification of 0.8 megabase of novel sequence. Single nucleotide polymorphisms per kilobase (SNPs/kb) between the two strains were found to be exceptionally high (average: 7.8, maximum: 160 SNPs/kb). High variation within the species was confirmed with exo-metabolite profiling and phylogenetics. Detailed lists of alleles were generated, and genotypic differences were observed to accumulate in metabolic pathways essential to acid production and protein synthesis. A transcriptome analysis revealed up-regulation of the electron transport chain, specifically the alternative oxidative pathway in ATCC 1015, while CBS 513.88 showed significant up-regulation of genes relevant to glucoamylase A production, such as tRNA-synthases and protein transporters. Our results and datasets from this integrative systems biology analysis resulted in a snapshot of fungal evolution and will support further optimization of cell factories based on filamentous fungi.[Supplemental materials (10 figures, three text documents and 16 tables) have been made available

  20. Tropical Africa: Land Use, Biomass, and Carbon Estimates for 1980 (NDP-055)

    SciTech Connect

    Brown, S.

    2002-04-16

    This document describes the contents of a digital database containing maximum potential aboveground biomass, land use, and estimated biomass and carbon data for 1980. The biomass data and carbon estimates are associated with woody vegetation in Tropical Africa. These data were collected to reduce the uncertainty associated with estimating historical releases of carbon from land use change. Tropical Africa is defined here as encompassing 22.7 x 10{sup 6} km{sup 2} of the earth's land surface and is comprised of countries that are located in tropical Africa (Angola, Botswana, Burundi, Cameroon, Cape Verde, Central African Republic, Chad, Congo, Benin, Equatorial Guinea, Ethiopia, Djibouti, Gabon, Gambia, Ghana, Guinea, Ivory Coast, Kenya, Liberia, Madagascar, Malawi, Mali, Mauritania, Mozambique, Namibia, Niger, Nigeria, Guinea-Bissau, Zimbabwe (Rhodesia), Rwanda, Senegal, Sierra Leone, Somalia, Sudan, Tanzania, Togo, Uganda, Burkina Faso (Upper Volta), Zaire, and Zambia). The database was developed using the GRID module in the ARC/INFO{trademark} geographic information system. Source data were obtained from the Food and Agriculture Organization (FAO), the U.S. National Geophysical Data Center, and a limited number of biomass-carbon density case studies. These data were used to derive the maximum potential and actual (ca. 1980) aboveground biomass values at regional and country levels. The land-use data provided were derived from a vegetation map originally produced for the FAO by the International Institute of Vegetation Mapping, Toulouse, France.

  1. Sequence stratigraphic model of the Rio Grande Delta, south west Texas: Potential analog for the Niger Delta

    SciTech Connect

    Banfield, L.A.; Anderson, J.B.; Vail, P.R.

    1996-12-31

    A sequence stratigraphic model developed from the ancient Rio Grande Delta in South West Texas is suggested as an analog for the Niger Delta. The two delta systems are characterized by high sand bedloads, shale diapirism with associated listric normal faulting, and large amounts of tidal and wave influence forming lower coastal plains characterized by swamps and estuaries. The sequence stratigraphic model of the ancient Rio Grande delta is based on approximately 1200 kilometers of single channel, 15 cubic inch water gun data, lithologic descriptions from approximately 25 long cores (28-30 m) located in 17-94 meters water depth, three gamma ray logs, paleontologic data from two cores, and oxygen isotopic data from one core (152 meters in length and located in 94 meters water depth). The combined data indicate that considerable quantities of sand are sequestered on the continental shelf and point sourcing the slope. The Rio Grande sequence stratigraphic model provides an improved understanding of sand deposits on the shelf, of the role of sediment bypass during lowstands, and of the base of slope deposits formed by headward eroding canyons (?) or channels (?) located at the shelf break. This information regarding the distribution of sand in the Rio Grande system can provide valuable insight into the reservoir distribution in the Niger system, improving existing reservoir predictions.

  2. Mapping N-linked Glycosylation Sites in the Secretome and Whole Cells of Aspergillus niger Using Hydrazide Chemistry and Mass Spectrometry

    SciTech Connect

    Wang, Lu; Aryal, Uma K.; Dai, Ziyu; Mason, Alisa C.; Monroe, Matthew E.; Tian, Zhixin; Zhou, Jianying; Su, Dian; Weitz, Karl K.; Liu, Tao; Camp, David G.; Smith, Richard D.; Baker, Scott E.; Qian, Weijun

    2012-01-01

    Protein glycosylation is known to play an essential role in both cellular functions and the secretory pathways; however, little information is available on the dynamics of glycosylated N-linked glycosites of fungi. Herein we present the first extensive mapping of glycosylated N-linked glycosites in industrial strain Aspergillus niger by applying an optimized solid phase enrichment of glycopeptide protocol using hydrazide modified magnetic beads. The enrichment protocol was initially optimized using mouse plasma and A. niger secretome samples, which was then applied to profile N-linked glycosites from both the secretome and whole cell lysates of A. niger. A total of 847 unique N-linked glycosites and 330 N-linked glycoproteins were confidently identified by LC-MS/MS. Based on gene ontology analysis, the identified N-linked glycoproteins in the whole cell lysate were primarily localized in the plasma membrane, endoplasmic reticulum, golgi apparatus, lysosome, and storage vacuoles. The identified N-linked glycoproteins are involved in a wide range of biological processes including gene regulation and signal transduction, protein folding and assembly, protein modification and carbohydrate metabolism. The extensive coverage of glycosylated N-linked glycosites along with identification of partial N-linked glycosylation in those enzymes involving in different biochemical pathways provide useful information for functional studies of N-linked glycosylation and their biotechnological applications in A. niger.

  3. CRC handbook of agricultural energy potential of developing countries

    SciTech Connect

    Duke, J.A.

    1986-01-01

    The contents of this book are: Introduction; Kenya; Korea (Republic of); Lesotho; Liberia; Malagasy; Malawi; Mali; Mauritania; Mexico, Mozambique, Nepal; Nicaragua; Niger; Nigeria; Pakistan; Panama; Paraguay; Peru; Philippines; Rwanda; Senegal; Sierra Leone; Somalia; Sri Lanka; Sudana; Surinam; Swaziland; Tanzania; Thailand; Togo; Uganda; Uruguay; Venezuela; Zaire; Zambia; Appendix I. Conventional and Energetic Yields; Appendix II, Phytomass Files; and References.

  4. Identification of a classical mutant in the industrial host Aspergillus niger by systems genetics: LaeA is required for citric acid production and regulates the formation of some secondary metabolites

    SciTech Connect

    Niu, Jing; Arentshorst, Mark; Nair, P. Deepa S.; Dai, Ziyu; Baker, Scott E.; Frisvad, Jens C.; Nielsen, Kristian F.; Punt, Peter J.; Ram, Arthur F. J.

    2015-11-13

    The asexual filamentous fungus Aspergillus niger is an important industrial cell factory for citric acid production. In this study, we genetically characterized a UV-generated A. niger mutant that was originally isolated as a nonacidifying mutant, which is a desirable trait for industrial enzyme production. Physiological analysis showed that this mutant did not secrete large amounts of citric acid and oxalic acid, thus explaining the nonacidifying phenotype. As traditional complementation approaches to characterize the mutant genotype were unsuccessful, we used bulk segregant analysis in combination with high-throughput genome sequencing to identify the mutation responsible for the nonacidifying phenotype. Since A. niger has no sexual cycle, parasexual genetics was used to generate haploid segregants derived from diploids by loss of whole chromosomes. We found that the nonacidifying phenotype was caused by a point mutation in the laeA gene. LaeA encodes a putative methyltransferase-domain protein, which we show here to be required for citric acid production in an A. niger lab strain (N402) and in other citric acid production strains. The unexpected link between LaeA and citric acid production could provide new insights into the transcriptional control mechanisms related to citric acid production in A. niger. Interestingly, the secondary metabolite profile of a ΔlaeA strain differed from the wild-type strain, showing both decreased and increased metabolite levels, indicating that LaeA is also involved in regulating the production of secondary metabolites. As a result, we show that our systems genetics approach is a powerful tool to identify trait mutations.

  5. Identification of a classical mutant in the industrial host Aspergillus niger by systems genetics: LaeA is required for citric acid production and regulates the formation of some secondary metabolites

    DOE PAGES [OSTI]

    Niu, Jing; Arentshorst, Mark; Nair, P. Deepa S.; Dai, Ziyu; Baker, Scott E.; Frisvad, Jens C.; Nielsen, Kristian F.; Punt, Peter J.; Ram, Arthur F. J.

    2015-11-13

    The asexual filamentous fungus Aspergillus niger is an important industrial cell factory for citric acid production. In this study, we genetically characterized a UV-generated A. niger mutant that was originally isolated as a nonacidifying mutant, which is a desirable trait for industrial enzyme production. Physiological analysis showed that this mutant did not secrete large amounts of citric acid and oxalic acid, thus explaining the nonacidifying phenotype. As traditional complementation approaches to characterize the mutant genotype were unsuccessful, we used bulk segregant analysis in combination with high-throughput genome sequencing to identify the mutation responsible for the nonacidifying phenotype. Since A. nigermore » has no sexual cycle, parasexual genetics was used to generate haploid segregants derived from diploids by loss of whole chromosomes. We found that the nonacidifying phenotype was caused by a point mutation in the laeA gene. LaeA encodes a putative methyltransferase-domain protein, which we show here to be required for citric acid production in an A. niger lab strain (N402) and in other citric acid production strains. The unexpected link between LaeA and citric acid production could provide new insights into the transcriptional control mechanisms related to citric acid production in A. niger. Interestingly, the secondary metabolite profile of a ΔlaeA strain differed from the wild-type strain, showing both decreased and increased metabolite levels, indicating that LaeA is also involved in regulating the production of secondary metabolites. As a result, we show that our systems genetics approach is a powerful tool to identify trait mutations.« less

  6. Mauritania-National Adaptation Plan Global Support Programme...

    OpenEI (Open Energy Information) [EERE & EIA]

    Global Environment Facility (GEF), United Nations Framework Convention on Climate Change (UNFCCC), Global Water Partnership (GWP), German Society for International Cooperation...

  7. Aeromagnetic anomalies and discordant lineations beneath the Niger Delta: Implications for new fracture zones and multiple sea-floor spreading directions in the meso-Atlantic' Gulf of Guinea cul-de-sac

    SciTech Connect

    Babalola, O.O.; Gipson, M. Jr. )

    1991-06-01

    An aeromagnetic contour map compiled over shallow water and onshore portions of the Nigerian continental margin, shows several elongate, long-wavelength anomaly closures with some alternating polarity, separated by steep gradient, NE lineations. The lineations are interpreted as new fracture zones or extensions of previously mapped ones. The NE trend in the western delta region is concordant with the fracture zone trends of the deeper Gulf of Guinea. Aeromagnetic lineations of the SE Niger Delta Basin however, discordantly trend ENE. Their termination against the former, is interpreted as evidence of early sea-floor spreading in a ENE-WSW direction in addition to the well documented NE-SW spreading of the Gulf of Guinea and the rest of the meso-Atlantic sea-floor; The geophysical crustal structure indicate the existence of two Early Cretaceous triple junctions beneath the Niger Delta Basin. The two triple-junctions further support the hypothesis that the African continent was a multi-plate system (in the Niger Delta region) during the early opening of the Atlantic.

  8. Expression of the Aspergillus niger InuA gene in Saccharomyces cerevisiae permits growth on the plant storage carbohydrate inulin at low enzymatic concentrations

    DOE PAGES [OSTI]

    Close, Dan

    2015-01-01

    The plant storage carbohydrate inulin represents an attractive biomass feedstock for fueling industrial scale bioconversion processes due to its low cost, ability for cultivation on arid and semi-arid lands, and amenability to consolidated bioprocessing applications. As a result, increasing efforts are emerging towards engineering industrially relevant microorganisms, such as yeast, to efficiently ferment inulin into high value fuels and chemicals. Although some strains of the industrially relevant yeast model Saccharomyces cerevisiae can naturally ferment inulin, the efficiency of this process is often supplemented through expression of exogenous inulinase enzymes that externally convert inulin into its more easily fermentable component monomericmore » sugars. Here, the effects of overexpressing the Aspergillus niger InuA inulinase enzyme in an S. cerevisiae strain incapable of endogenously fermenting inulin were evaluated to determine their impact on growth. Expression of the A. niger InuA inulinase enzyme permitted growth on otherwise intractable inulin substrates from both Dahlia tubers and Chicory root. Despite being in the top 10 secreted proteins, growth on inulin was not observed until 120 h post-inoculation and required the addition of 0.1 g fructose/l to initiate enzyme production in the absence of endogenous inulinase activity. High temperature/pressure pre-treatment of inulin prior to fermentation decreased this time to 24 h and removed the need for fructose addition. The pre-growth lag time on untreated inulin was attributed primarily to low enzymatic efficiency, with a maximum value of 0.13 0.02 U InuA/ml observed prior to the peak culture density of 2.65 0.03 g/l. Nevertheless, a minimum excreted enzymatic activity level of only 0.03 U InuA/ml was found to be required for sustained growth under laboratory conditions, suggesting that future metabolic engineering strategies can likely redirect carbon flow away from inulinase production and reorient

  9. Oil and gas developments in central and southern Africa in 1987

    SciTech Connect

    Hartman, J.B.; Walker, T.L.

    1988-10-01

    Significant rightholding changes took place in central and southern Africa during 1987. Angola, Benin, Congo, Gabon, Ghana, Guinea, Guinea Bissau, Mauritania, Seychelles, Somali Republic, Tanzania, Zaire, and Zambia announced awards or acreage open for bidding. Decreases in exploratory rightholdings occurred in Cameroon, Congo, Cote d'Ivoire, Equatorial Guinea, Gabon, Kenya, Namibia, South Africa, and Tanzania. More wells and greater footage were drilled in 1987 than in 1986. Total wells increased by 18% as 254 wells were completed compared to 217 in 1986. Footage drilled during the year increased by 46% as about 1.9 million ft were drilled compared to about 1.3 million ft in 1986. The success rate for exploration wells in 1987 improved slightly to 36% compared to 34% in 1986. Significant discoveries were made in Nigeria, Angola, Congo, and Gabon. Seismic acquisition in 1987 was the major geophysical activity during the year. Total oil production in 1987 was 773 million bbl (about 2.1 million b/d), a decrease of 7%. The decrease is mostly due to a 14% drop in Nigerian production, which comprises 60% of total regional production. The production share of OPEC countries (Nigeria and Gabon) versus non-OPEC countries of 67% remained unchanged from 1986. 24 figs., 5 tabs.

  10. Expression of the Aspergillus niger InuA gene in Saccharomyces cerevisiae permits growth on the plant storage carbohydrate inulin at low enzymatic concentrations

    SciTech Connect

    Close, Dan

    2015-01-01

    The plant storage carbohydrate inulin represents an attractive biomass feedstock for fueling industrial scale bioconversion processes due to its low cost, ability for cultivation on arid and semi-arid lands, and amenability to consolidated bioprocessing applications. As a result, increasing efforts are emerging towards engineering industrially relevant microorganisms, such as yeast, to efficiently ferment inulin into high value fuels and chemicals. Although some strains of the industrially relevant yeast model Saccharomyces cerevisiae can naturally ferment inulin, the efficiency of this process is often supplemented through expression of exogenous inulinase enzymes that externally convert inulin into its more easily fermentable component monomeric sugars. Here, the effects of overexpressing the Aspergillus niger InuA inulinase enzyme in an S. cerevisiae strain incapable of endogenously fermenting inulin were evaluated to determine their impact on growth. Expression of the A. niger InuA inulinase enzyme permitted growth on otherwise intractable inulin substrates from both Dahlia tubers and Chicory root. Despite being in the top 10 secreted proteins, growth on inulin was not observed until 120 h post-inoculation and required the addition of 0.1 g fructose/l to initiate enzyme production in the absence of endogenous inulinase activity. High temperature/pressure pre-treatment of inulin prior to fermentation decreased this time to 24 h and removed the need for fructose addition. The pre-growth lag time on untreated inulin was attributed primarily to low enzymatic efficiency, with a maximum value of 0.13 0.02 U InuA/ml observed prior to the peak culture density of 2.65 0.03 g/l. Nevertheless, a minimum excreted enzymatic activity level of only 0.03 U InuA/ml was found to be required for sustained growth under laboratory conditions, suggesting that future metabolic engineering strategies can likely redirect carbon flow away from inulinase

  11. Gabon-Enhancing Capacity for Low Emission Development Strategies...

    OpenEI (Open Energy Information) [EERE & EIA]

    illustrates the U.S. perspective on LEDS: Integrated development goals and objectives, national greenhouse gas inventory, and economic and resource data Long-term projections of...

  12. Forum des Jeuns du Gabon | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    drought and land degradation, Environmentally sound technologies, Gender, Human rights and Sustainable development plans References "UNEP Major Groups Directory"...

  13. Gabon-Supporting Low Carbon Development and Climate Resilient...

    OpenEI (Open Energy Information) [EERE & EIA]

    Strategies in Africa AgencyCompany Organization France Agency of Development (AFD) Partner ADETEF Sector Climate Focus Area People and Policy Topics Low emission...

  14. AMF Deployment, Niamey, Niger, West Africa

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    The special observing periods will sample absorbing aerosols from desert dust and biomass ... During January to March, the lower atmosphere in Niamey is often laden with dust blown ...

  15. Niger-National Adaptation Plan Global Support Programme (NAP...

    OpenEI (Open Energy Information) [EERE & EIA]

    Global Environment Facility (GEF), United Nations Framework Convention on Climate Change (UNFCCC), Global Water Partnership (GWP), German Society for International Cooperation...

  16. Atmospheric Radiation Measurement (ARM) Data from Niamey, Niger...

    Office of Scientific and Technical Information (OSTI)

    Sometimes these sites can become permanent ARM sites, as was the case with Graciosa Island in the Azores. It is now known as the Eastern North Atlantic permanent site. In January ...

  17. Atmospheric Radiation Measurement (ARM) Data from Niamey, Niger...

    Office of Scientific and Technical Information (OSTI)

    Visit OSTI to utilize additional information resources in energy science and technology. ... order to provide the first well-sampled, direct estimates of the divergence of solar and ...

  18. Morocco

    Annual Energy Outlook

    MAURITANIA) SUMMARY In addition to large accumulations of Late-Cretaceous immature oil shale (kerogen) at depths suitable for surface mining 1 , Morocco and its two neighboring...

  19. Fact #836: September 1, Non-OPEC Countries Supply Nearly Two...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    ... Notes: Petroleum imports include crude oil and petroleum products. Other OPEC Countries include Algeria, Angola, Ecuador, Iraq, Kuwait, Libya, Gabon, Indonesia, Iran, Qatar, and ...

  20. Wind and Water Materials and Structures Database Download

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Safety, Security & Resilience of the Energy Infrastructure Energy Storage Nuclear Power & ... Eritrea Estonia Ethiopia Fiji Finland France French Polynesia Gabon Gambia Georgia ...

  1. National Action Programmes on Desertification | Open Energy Informatio...

    OpenEI (Open Energy Information) [EERE & EIA]

    Faso, Burundi, Cameroon, Cape Verde, Chad, Democratic Republic of Congo, Djibouti, Egypt, Equatorial Guinea, Eritrea, Ethiopia, Gabon, Gambia, Ghana, Guinea, Kenya, Lesotho,...

  2. EC Publications

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    ... French Polynesia Gabon Gambia Georgia Germany Ghana Greece Greenland Grenada Guam Guatemala Guinea Guinea-Bissau Guyana Haiti Honduras Hong Kong Hungary Iceland India Indonesia ...

  3. MELCOR / CSARP / MCAP / IMUG / MACCS Meetings 2016

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    ... French Polynesia Gabon Gambia Georgia Germany Ghana Greece Greenland Grenada Guam Guatemala Guinea Guinea-Bissau Guyana Haiti Honduras Hong Kong Hungary Iceland India Indonesia ...

  4. SNL-ESSC (Sandia National Laboratories - Extreme Sea State Contour...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    ... French Polynesia Gabon Gambia Georgia Germany Ghana Greece Greenland Grenada Guam Guatemala Guinea Guinea-Bissau Guyana Haiti Honduras Hong Kong Hungary Iceland India Indonesia ...

  5. SNL-Delft3D-CEC

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    ... French Polynesia Gabon Gambia Georgia Germany Ghana Greece Greenland Grenada Guam Guatemala Guinea Guinea-Bissau Guyana Haiti Honduras Hong Kong Hungary Iceland India Indonesia ...

  6. Offshore Wind RD&D: Large Offshore Rotor Development

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    ... French Polynesia Gabon Gambia Georgia Germany Ghana Greece Greenland Grenada Guam Guatemala Guinea Guinea-Bissau Guyana Haiti Honduras Hong Kong Hungary Iceland India Indonesia ...

  7. USAID West Africa Climate Program | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Guinea, Guinea-Bissau, Cameroon, Gabon, Equatorial Guinea, Chad, Sao Tome and Principe, Cape Verde Western Africa, Western Africa, Western Africa, Western Africa, Western...

  8. 2015 Uranium Marketing Annual Report

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Energy SOPAMIN (Socit de Patrimoine des Mines du Niger "Heritage Society of Mines in Niger") Rossing Uranium Limited Rio Tinto Uranium Limited TENAM Corporation SOPAMIN ...

  9. 2015 Uranium Marketing Annual Report

    Energy Information Administration (EIA) (indexed site)

    "SOPAMIN (Socit de Patrimoine des Mines du Niger ""Heritage Society of Mines in Niger"")","Rossing Uranium Limited","Rio Tinto Uranium Limited" "TENAM Corporation","SOPAMIN ...

  10. User:GregZiebold/Developing Country Programs Map | Open Energy...

    OpenEI (Open Energy Information) [EERE & EIA]

    of Congo 12 Djibouti 3 Dominica 9 Dominican Republic 12 Ecuador 7 Egypt 14 El Salvador 8 Equatorial Guinea 4 Eritrea 3 Estonia 2 Ethiopia 21 Fiji 1 Gabon 10 ... further...

  11. Research Highlight

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    deployment-mean cloud and precipitation fraction during the AMF deployment at Niamey, Niger. The first international deployment of the AMF in Niamey, Niger,-one of the hottest...

  12. Identification of a classical mutant in the industrial host Aspergillus

    Office of Scientific and Technical Information (OSTI)

    niger by systems genetics: LaeA is required for citric acid production and regulates the formation of some secondary metabolites (Journal Article) | DOE PAGES Identification of a classical mutant in the industrial host Aspergillus niger by systems genetics: LaeA is required for citric acid production and regulates the formation of some secondary metabolites Title: Identification of a classical mutant in the industrial host Aspergillus niger by systems genetics: LaeA is required for citric

  13. ARM - Site Instruments

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Niamey, Niger, West AfricaInstruments Niamey Deployment AMF Home Niamey Home Data Plots and Baseline Instruments Rainfall Record (PDF) Publications List, (PDF) Experiment Planning RADAGAST Proposal Outreach Fact Sheets RADAGAST (PDF) Annual Climate Cycle in Niger, Africa (PDF) Posters AMF Poster, French Version We're Going to Sample the Sky in Africa! News Campaign Images AMMA International News Instruments : Niamey, Niger; Mobile Facility (RADAGAST) Active Retired Active instruments are

  14. Identification of a classical mutant in the industrial host Aspergillu...

    Office of Scientific and Technical Information (OSTI)

    Since A. niger has no sexual cycle, parasexual genetics was used to generate haploid segregants derived from diploids by loss of whole chromosomes. We found that the nonacidifying ...

  15. --No Title--

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Nicaragua Niger Nigeria Niue Norway Oman Pakistan Palestine Panama Papua New Guinea Paraguay Peru Philippines Poland Portugal Puerto Rico Qatar Reunion Romania Russia Rwanda...

  16. ARM - 2008 Science Team Meeting Pictures

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Larry Berg, ARM scientist (left), listens to a visiting scientist from Niamey, Niger, who participated in the mobile facility deployment in Niamey. Larry Berg, ARM...

  17. The ARM Atmospheric Emitted Radiance Interferometer (AERI): Status...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    sites and an AERI is in operation as part of the ARM mobile facility currently in Niger, Africa. Recent upgrades in AERI instrumentation and enhancements in operational data...

  18. Preliminary Results of in-situ Measurements of Aerosol Optical...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    of Aerosol Optical and Water Uptake Properties from the ARM Mobile Facility in Niger Jefferson, Anne NOAA CMDL Ogren, John NOAACMDL Category: Field Campaigns The second...

  19. Newsletter Southern Great Plains

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    world, including China, Japan, Australia, Niger, Africa, France, and Germany. ... the following results: * High-quality data sets of fair-weather cumulus, stratus, and deep ...

  20. ARM - Feature Stories and Releases Article

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    with sophisticated instruments and data systems in Niger, Africa, to gain a better understanding of the potential impacts of Saharan dust on global climate. To learn more, read

  1. ARM - AMF Data

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    2009-2010 Shouxian, China, 2008 Black Forest, Germany, 2007 Niamey, Niger, 2006 Point Reyes, California, 2005 AMF Data Available Data Plots View data plots from each deployment....

  2. ARM - AMF2 Organization and Contact Information

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    2009-2010 Shouxian, China, 2008 Black Forest, Germany, 2007 Niamey, Niger, 2006 Point Reyes, California, 2005 AMF2 Organization and Contact Information The Argonne AMF2...

  3. ARM - AMF Contacts

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    2009-2010 Shouxian, China, 2008 Black Forest, Germany, 2007 Niamey, Niger, 2006 Point Reyes, California, 2005 AMF Contacts Science AMF1 Site Scientist - Mark Miller, Rutgers...

  4. ARM - Facility News Article

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Facility (AMF), an identical CCN instrument was deployed in 2005 during the AMF field campaign at Point Reyes, California, and is currently operating at Niamey, Niger, West Africa...

  5. ARM - AMF Operations

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    2009-2010 Shouxian, China, 2008 Black Forest, Germany, 2007 Niamey, Niger, 2006 Point Reyes, California, 2005 AMF Operations Members of the AMF1 installation team prepare the...

  6. ARM - Facility News Article

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Mixed-Phase Arctic Cloud Experiment, and the ARM Mobile Facility's deployments at Point Reyes National Seashore and Niamey, Niger, West Africa. ARM researchers, including ARM's...

  7. THE GEOMETRY OF DISORDER: THEORETICAL INVESTIGATIONS OF QUASICRYSTALS...

    Office of Scientific and Technical Information (OSTI)

    scitechservletspurl1015270 http:www.osti.govscitechbiblio1015270 Comparative genomics of citric-acid producing Aspergillus niger ATCC 1015 versus enzyme-producing CBS...

  8. "Title","Creator/Author","Publication Date","OSTI Identifier...

    Office of Scientific and Technical Information (OSTI)

    servletspurl1015270","http:www.osti.govscitechbiblio1015270", "Comparative genomics of citric-acid producing Aspergillus niger ATCC 1015 versus enzyme-producing CBS...

  9. Search for: All records | SciTech Connect

    Office of Scientific and Technical Information (OSTI)

    ... Filter Results Filter by Subject organic acids (2) aspergillus niger (1) bulk segregant analysis (1) filamentous fungi (1) gene regulation (1) genome sequencing (1) laea, ...

  10. Microsoft Word - FY07AnnualReport.doc

    Energy.gov [DOE] (indexed site)

    (EZ) 1 18,000,000 FRANCE (FR) 5 8,093,198 GABON (GB) 1 441,600 GAMBIA (GA) 1 49,300 GERMANY FEDERAL REPUBLIC OF (GE) 3 1,698,498 HUNGARY (HU) 1 4,000,000 KAZAKHSTAN (KZ) 3...

  11. Total Net Imports of Crude Oil and Petroleum Products into the U.S.

    Energy Information Administration (EIA) (indexed site)

    Net Imports by Country Country: Total All Countries Persian Gulf OPEC Algeria Angola Ecuador Gabon Indonesia Iran Iraq Kuwait Libya Nigeria Qatar Saudi Arabia United Arab Emirates Venezuela Non OPEC Afghanistan Albania Andora Anguilla Antigua and Barbuda Argentina Armenia Aruba Australia Austria Azerbaijan Bahamas Bahrain Bangladesh Barbados Belarus Belgium Belize Benin Bermuda Bolivia Bosnia and Herzegovina Botswana Brazil Brunei Bulgaria Burkina Faso Burma Cambodia Cameroon Canada Cayman

  12. U.S. Imports from All Countries

    Energy Information Administration (EIA) (indexed site)

    Imports by Country of Origin Import Area: U.S. Period/Unit: Monthly-Thousand Barrels Monthly-Thousand Barrels per Day Annual-Thousand Barrels Annual-Thousand Barrels per Day Country: All Countries Persian Gulf OPEC Algeria Angola Ecuador Gabon Indonesia Iraq Kuwait Libya Nigeria Qatar Saudi Arabia United Arab Emirates Venezuela Non OPEC Albania Argentina Aruba Australia Austria Azerbaijan Bahamas Bahrain Barbados Belarus Belgium Belize Benin Bolivia Bosnia and Herzegovina Brazil Brunei Bulgaria

  13. Nuclear reactors and the nuclear fuel cycle

    SciTech Connect

    Pearlman, H

    1989-11-01

    According to the author, the first sustained nuclear fission chain reaction was not at the University of Chicago, but at the Oklo site in the African country of Gabon. Proof of this phenomenon is provided by mass spectrometric and analytical chemical measurements by French scientists. The U.S. experience in developing power-producing reactors and their related fuel and fuel cycles is discussed.

  14. Short-Term Energy Outlook - U.S. Energy Information Administration (EIA)

    Energy Information Administration (EIA) (indexed site)

    3b : Non-OPEC Petroleum and Other Liquids Supply (Million Barrels per Day) Either scripts and active content are not permitted to run or Adobe Flash Player version ${version_major}.${version_minor}.${version_revision} or greater is not installed. Get Adobe Flash Player - = no data available OPEC = Organization of Petroleum Exporting Countries: Algeria, Angola, Ecuador, Gabon, Indonesia, Iran, Iraq, Kuwait, Libya, Nigeria, Qatar, Saudi Arabia, the United Arab Emirates, Venezuela. Notes: The

  15. NREL: International Activities - Bilateral Partnerships

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Printable Version Bilateral Partnerships NREL partners with more than 50 countries around the world to advance development and use of renewable energy and energy efficiency technologies: Angola Argentina Australia Bangladesh Brazil Canada Chile China Colombia Costa Rica Gabon Haiti India Indonesia Japan Kazakhstan Kenya Korea Mexico North America Philippines Saudi Arabia U.S. Pacific Territories United Arab Emirates Vietnam Asia Bangladesh Under sponsorship from the U.S. Agency for International

  16. NREL: Technology Deployment - Developing Countries Demonstrate Impacts of

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Low Emission Development Strategies Developing Countries Demonstrate Impacts of Low Emission Development Strategies News EC-LEDS Highlights Renewable Energy Resource Data at COP21 Vietnam Makes Strides to Lower Emissions Thru Green Building Code, High-Performance Buildings Colombia Makes Major Strides in Low Emission Development Payments for Forest Environmental Services in Vietnam Preserves Forests, Engages Communities Presidential Engagement on Low Emission Development Strategies in Gabon

  17. NIAMEY DAILY RAINFALL

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    2006 -2 -1 0 1 +2 +3 Average Normalized Departure () Time series (1941-2006) of normalized April-October rainfall departures () for Niamey (2.1666 o E, 13.4833 o N) in Niger...

  18. ARM - VAP Process - sondeadjust

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    retired HFE M1 Browse Data Shouxian, Anhui, China retired NIM M1 Browse Data Niamey, Niger retired PGH M1 Browse Data ARIES Observatory, Nainital, Uttarkhand, India; AMF1...

  19. ARM - VAP Product - sondeadjust

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    retired HFE M1 Browse Data Shouxian, Anhui, China retired NIM M1 Browse Data Niamey, Niger retired PGH M1 Browse Data ARIES Observatory, Nainital, Uttarkhand, India; AMF1...

  20. ARM - 2007 Science Team Meeting Presentations

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Forcing of Saharan Dust Aerosol at Niamey, Niger (PDF, 449KB) S. McFarlane, E. Kassianov, C. Flynn, D. Turner, and T. Ackerman Characterization of Dust Type and Properties at ...

  1. ARM Aerosol Working Group Meeting

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    to aerosol The Radiative Impact of Saharan Dust Over Niamey, Niger T. Ackerman, University ... Daily (24 Hr) Average March Dust Storm Long-term Aerosol SFC Radiative Forcing MFRSR v.s. ...

  2. ARM - Facility News Article

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Adieu to Niger, Guten Tag to Germany Bookmark and Share The AMF decommissioning team poses ... two weeks, the AMF decommissioning team packaged the AMF for subsequent uplift to Germany. ...

  3. ARM - AMF Science

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    2009-2010 Shouxian, China, 2008 Black Forest, Germany, 2007 Niamey, Niger, 2006 Point Reyes, California, 2005 AMF Science Locale: Anywhere in the World The purpose of an ARM...

  4. ARM - Datastreams - mpl

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Browse Plots Central Facility, Darwin, Australia retired ARM Mobile Facility NIM M1 Browse Data Browse Plots Niamey, Niger retired PYE M1 Browse Data Browse Plots Point Reyes, CA...

  5. ARM - AMF Architecture

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    2009-2010 Shouxian, China, 2008 Black Forest, Germany, 2007 Niamey, Niger, 2006 Point Reyes, California, 2005 AMF Architecture The AMF1 sets up in Heselbach, Germany The AMF1...

  6. ARM - Data Announcements Article

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    E14, E16, E21, and E24 (September 2003-September 2010) ARM Mobile Facility (AMF) Point Reyes, California, deployment (2005) AMF Niamey, Niger, deployment (2006) AMF Black Forest,...

  7. Why is it so difficult to grow fuelwood

    SciTech Connect

    Noronha, R.

    1981-01-01

    Examples of successful and unsuccessful woodlot programmes are cited from China, Korea, India, Tanzania and Niger and the role of social factors examined. Effective village forestry involves social, cultural, economic and local political factors. (Refs. 15).

  8. TITLE AUTHORS SUBJECT SUBJECT RELATED DESCRIPTION PUBLISHER AVAILABILI...

    Office of Scientific and Technical Information (OSTI)

    Rev AC05 RL01830 TRN US201111 http www osti gov scitech servlets purl Comparative genomics of citric acid producing Aspergillus niger ATCC versus enzyme producing CBS working...

  9. Newsletter Southern Great Plains

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    African Researcher Visits Oklahoma As a follow-up to the ARM Mobile Facility (AMF) ... Niamey, Niger, to the ACRF Southern Great Plains (SGP) site near Lamont, Oklahoma. Dr. ...

  10. Enhanced citric acid production in aspergillus with inactivated...

    Office of Scientific and Technical Information (OSTI)

    Provided herein are fungi, such as Aspergillus niger, having a dolichyl-P-Man:Man(5)GlcNAc(2)-PP-dolichyl mannosyltransferase (Alg3) gene genetic inactivation, increased expression ...

  11. Category:Economic Community of West African States | Open Energy...

    OpenEI (Open Energy Information) [EERE & EIA]

    15 pages are in this category, out of 15 total. B Benin Burkina Faso C Cape Verde G Gambia Ghana G cont. Guinea Guinea-Bissau I Ivory Coast L Liberia M Mali N Niger Nigeria...

  12. ARM - Instrument - rad

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    govInstrumentsrad Documentation ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Instrument : Radiation Measurements at AMF (RAD) Instrument Categories Radiometric Picture of the radiometric instruments at the ancillary site in Niger General Overview While preparing for the ARM Mobile Facility deployment in Niger, the science team identified the need for instrumentation at an off-site location to compare radiative

  13. Africa: Unrest and restrictive terms limit abundant potential. [Oil and gas exploration and development in Africa

    SciTech Connect

    Not Available

    1993-08-01

    This paper summarizes the drilling and exploration activity of the oil and gas industries of Egypt, Libya, Tunisia, Algeria, Morocco, Nigeria, Cameroon, Gabon, the Congo, Angola, and South Africa. Information is provided on current and predicted trends in well drilling activities (both onshore and offshore), numbers of new wells, footage information, production statistics and what fields accounted for this production, and planned new exploration activities. The paper also describes the current status of government policies and political problems affecting the oil and gas industry.

  14. F.O.B. Costs of Imported Crude Oil for Selected Crude Streams

    Energy Information Administration (EIA) (indexed site)

    for Selected Crude Streams (Dollars per Barrel) Period: Monthly Annual Download Series History Download Series History Definitions, Sources & Notes Definitions, Sources & Notes Crude Stream Mar-16 Apr-16 May-16 Jun-16 Jul-16 Aug-16 View History Angolan Cabinda 1983-2010 Canadian Bow River 1996-2010 Canadian Light Sour Blend 29.95 36.13 39.21 43.32 43.16 41.48 2010-2016 Canadian Lloydminster 1983-2015 Ecuadorian Oriente 1983-2008 Gabon Rabi-Kouanga 1996-2008 Iraqi Basrah Light W W W W W W

  15. 3ctab.xlsx

    Gasoline and Diesel Fuel Update

    Algeria .............................................................. 1.10 1.10 1.10 1.10 1.05 1.04 1.05 - - - - - 1.10 - - Angola .............................................................. 1.75 1.77 1.82 1.78 1.78 1.79 1.80 - - - - - 1.78 - - Ecudaor ........................................................... 0.55 0.54 0.54 0.54 0.54 0.55 0.56 - - - - - 0.54 - - Gabon .............................................................. 0.22 0.21 0.22 0.22 0.21 0.21 0.21 - - - - - 0.21 - -

  16. Microsoft PowerPoint - 03_McFarlane_AWG.ppt [Compatibility Mode]

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    D t A l t Ni Ni Dust Aerosol at Niamey, Niger S. McFarlane, E. Kassianov, C. S. McFarlane, E. Kassianov, C. Flynn, D. Turner, T. Ackerman Flynn, D. Turner, T. Ackerman y y With contributions from J. Mather and J. Barnard With contributions from J. Mather and J. Barnard March 26, 2007 Aerosol Working Group AMF Deployment in Niamey Vertical distribution of radiative heating within atmosphere an important driver of atmospheric circulations ARM Mobile Facility (AMF) deployment in Niger, Niamey as

  17. African oil plays

    SciTech Connect

    Clifford, A.J. )

    1989-09-01

    The vast continent of Africa hosts over eight sedimentary basins, covering approximately half its total area. Of these basins, only 82% have entered a mature exploration phase, 9% have had little or no exploration at all. Since oil was first discovered in Africa during the mid-1950s, old play concepts continue to bear fruit, for example in Egypt and Nigeria, while new play concepts promise to become more important, such as in Algeria, Angola, Chad, Egypt, Gabon, and Sudan. The most exciting developments of recent years in African oil exploration are: (1) the Gamba/Dentale play, onshore Gabon; (2) the Pinda play, offshore Angola; (3) the Lucula/Toca play, offshore Cabinda; (4) the Metlaoui play, offshore Libya/Tunisia; (5) the mid-Cretaceous sand play, Chad/Sudan; and (6) the TAG-I/F6 play, onshore Algeria. Examples of these plays are illustrated along with some of the more traditional oil plays. Where are the future oil plays likely to develop No doubt, the Saharan basins of Algeria and Libya will feature strongly, also the presalt of Equatorial West Africa, the Central African Rift System and, more speculatively, offshore Ethiopia and Namibia, and onshore Madagascar, Mozambique, and Tanzania.

  18. Niamey Aerosol Optical Depths

    DOE Data Explorer

    Flynn, Connor

    2008-10-01

    MFRSR irradiance data collected during the ACRF AMF deployment in Niamey, Niger have been used to derive AOD for five wavelength channels of the MFRSR. These data have been corrected to adjust for filter drift over the course of the campaign and contamination due to forward scattering as a result of large dust particles in the atmosphere around Niamey.

  19. Dying for oil

    SciTech Connect

    Sachs, A.

    1996-05-01

    This article discusses the fight and execution of Ken Saro-Wiwa, the Ogoni leader who defended his people`s land on the Niger delta against oil development encouraged by the government and persued by the Royal/Dutch Shell Co. Political reprocussions and heightened vigilance of environmental activists are discussed at length.

  20. U.S. Crude Oil Imports

    Energy Information Administration (EIA) (indexed site)

    9,213 8,935 8,527 7,730 7,344 7,363 1910-2015 Persian Gulf 1,694 1,849 2,140 1,994 1,851 1,487 1973-2015 OPEC* 4,553 4,209 4,031 3,493 3,005 2,673 1973-2015 Algeria 328 178 120 29 6 3 1973-2015 Angola 383 335 222 201 139 124 1973-2015 Ecuador 210 203 177 232 213 225 1973-2015 Gabon 47 34 42 24 16 10 1993-2015 Indonesia 33 20 6 18 20 36 1973-2015 Iran 1973-2001 Iraq 415 459 476 341 369 229 1973-2015 Kuwait 195 191 303 326 309 204 1973-2015 Libya 43 9 56 43 5 3 1973-2015 Nigeria 983 767 406 239 58

  1. U.S. Products Imports

    Energy Information Administration (EIA) (indexed site)

    2,580 2,501 2,071 2,129 1,897 2,086 1973-2015 Persian Gulf 17 13 16 15 24 19 1993-2015 OPEC* 354 347 240 227 232 221 1993-2015 Algeria 182 181 122 86 104 105 1993-2015 Angola 10 11 11 14 15 13 1994-2015 Ecuador 2 2 4 4 2 5 1993-2015 Gabon 0 1 1 2 2 1993-2015 Indonesia 4 1 2 5 5 5 1993-2015 Iraq 0 0 2004-2013 Kuwait 1 1 2 2 2 0 1993-2015 Libya 27 6 5 15 2 4 2004-2015 Nigeria 39 51 36 42 34 26 1993-2015 Qatar 1 1 5 7 9 8 1995-2015 Saudi Arabia 14 8 4 4 7 7 1993-2015 United Arab Emirates 1 3 3 1 0

  2. U.S. Total Crude Oil and Products Imports

    Energy Information Administration (EIA) (indexed site)

    11,793 11,436 10,598 9,859 9,241 9,449 1973-2015 Persian Gulf 1,711 1,861 2,156 2,009 1,875 1,507 1973-2015 OPEC* 4,906 4,555 4,271 3,720 3,237 2,894 1973-2015 Algeria 510 358 242 115 110 108 1973-2015 Angola 393 346 233 216 154 136 1973-2015 Ecuador 212 206 180 236 215 231 1993-2015 Gabon 47 34 43 25 18 12 1973-2015 Indonesia 37 21 7 24 25 41 1973-2015 Iran 1973-2001 Iraq 415 459 476 341 369 229 1973-2015 Kuwait 197 191 305 328 311 204 1973-2015 Libya 70 15 61 59 6 7 1973-2015 Nigeria 1,023 818

  3. East Coast (PADD 1) Total Crude Oil and Products Imports

    Energy Information Administration (EIA) (indexed site)

    Mar-16 Apr-16 May-16 Jun-16 Jul-16 Aug-16 View History All Countries 52,343 59,570 56,245 63,583 62,424 59,566 1981-2016 Persian Gulf 3,951 2,738 3,343 3,487 3,820 3,752 1993-2016 OPEC* 12,417 15,062 14,321 14,771 18,757 15,181 1993-2016 Algeria 421 66 577 1,489 994 1993-2016 Angola 1,276 2,971 1,458 1,671 4,308 2,956 1993-2016 Ecuador 174 171 176 1995-2016 Gabon 156 1993-2016 Indonesia 26 165 138 56 54 1995-2016 Iraq 1,705 584 3,343 1,493 1,800 2,753 1995-2016 Kuwait 90 1995-2016 Libya

  4. Midwest (PADD 2) Total Crude Oil and Products Imports

    Energy Information Administration (EIA) (indexed site)

    2010 2011 2012 2013 2014 2015 View History All Countries 541,439 604,817 670,834 718,478 764,835 812,181 1981-2015 Persian Gulf 20,913 18,297 11,397 14,291 12,302 12,559 1993-2015 OPEC* 59,140 28,181 15,713 14,841 12,302 12,559 1993-2015 Algeria 29,969 8,429 4,074 380 1993-2015 Angola 4,619 1,012 1993-2011 Ecuador 1993-2007 Gabon 72 1995-2012 Iraq 101 2,654 1995-2011 Kuwait 949 1995-2013 Libya 2005-2009 Nigeria 3,401 1993-2010 Qatar 2 1995-2015 Saudi Arabia 20,812 15,643 11,397 13,342 12,302

  5. Midwest (PADD 2) Total Crude Oil and Products Imports

    Energy Information Administration (EIA) (indexed site)

    Mar-16 Apr-16 May-16 Jun-16 Jul-16 Aug-16 View History All Countries 74,799 65,198 63,812 59,575 64,573 71,666 1981-2016 Persian Gulf 1,199 2,627 1,100 802 1,120 804 1993-2016 OPEC* 1,199 2,627 1,100 802 1,120 804 1993-2016 Algeria 1993-2015 Angola 1993-2011 Ecuador 1993-2007 Gabon 1995-2012 Iraq 1995-2011 Kuwait 1995-2013 Libya 2005-2009 Nigeria 1993-2010 Qatar 1 1 1 1995-2016 Saudi Arabia 1,199 2,626 1,100 801 1,119 804 1993-2016 Venezuela 1993-2013 Non OPEC* 73,600 62,571 62,712 58,773 63,453

  6. Net Imports of Total Crude Oil and Products into the U.S. by Country

    Energy Information Administration (EIA) (indexed site)

    2010 2011 2012 2013 2014 2015 View History Total All Countries 9,441 8,450 7,393 6,237 5,065 4,711 1973-2015 Persian Gulf 1,705 1,842 2,149 1,988 1,861 1,494 1993-2015 OPEC* 4,787 4,429 4,093 3,483 2,996 2,654 1993-2015 Algeria 510 355 241 108 109 105 1993-2015 Angola 393 346 233 215 154 136 1993-2015 Ecuador 135 147 117 153 116 108 1993-2015 Gabon 46 34 43 23 18 12 1993-2015 Indonesia 37 20 6 23 24 38 1993-2015 Iran 0 0 1993-2014 Iraq 415 459 476 341 369 229 1996-2015 Kuwait 197 191 305 328 311

  7. Net Imports of Total Crude Oil and Products into the U.S. by Country

    Energy Information Administration (EIA) (indexed site)

    Mar-16 Apr-16 May-16 Jun-16 Jul-16 Aug-16 View History Total All Countries 5,000 4,674 4,525 4,836 5,298 5,196 1973-2016 Persian Gulf 1,805 1,707 1,923 1,712 1,751 1,808 1993-2016 OPEC* 3,423 3,179 3,420 3,154 3,563 3,220 1993-2016 Algeria 147 130 91 171 191 169 1993-2016 Angola 172 242 161 128 299 159 1993-2016 Ecuador 175 95 144 124 134 143 1993-2016 Gabon 6 0 5 1993-2016 Indonesia 38 43 43 53 48 51 1993-2016 Iran 1993-2014 Iraq 365 349 555 434 390 488 1996-2016 Kuwait 123 199 177 135 323 156

  8. Building international genomics collaboration for global health security

    SciTech Connect

    Cui, Helen H.; Erkkila, Tracy; Chain, Patrick S. G.; Vuyisich, Momchilo

    2015-12-07

    Genome science and technologies are transforming life sciences globally in many ways and becoming a highly desirable area for international collaboration to strengthen global health. The Genome Science Program at the Los Alamos National Laboratory is leveraging a long history of expertise in genomics research to assist multiple partner nations in advancing their genomics and bioinformatics capabilities. The capability development objectives focus on providing a molecular genomics-based scientific approach for pathogen detection, characterization, and biosurveillance applications. The general approaches include introduction of basic principles in genomics technologies, training on laboratory methodologies and bioinformatic analysis of resulting data, procurement, and installation of next-generation sequencing instruments, establishing bioinformatics software capabilities, and exploring collaborative applications of the genomics capabilities in public health. Genome centers have been established with public health and research institutions in the Republic of Georgia, Kingdom of Jordan, Uganda, and Gabon; broader collaborations in genomics applications have also been developed with research institutions in many other countries.

  9. U.S. Crude Oil Imports

    Gasoline and Diesel Fuel Update

    8,042 7,637 7,946 7,611 8,092 8,035 1920-2016 Persian Gulf 1,753 1,684 1,917 1,690 1,743 1,792 1993-2016 OPEC* 3,271 3,091 3,406 3,024 3,502 3,118 1973-2016 Algeria 19 20 42 79 1973-2016 Angola 160 217 161 128 287 137 1973-2016 Ecuador 264 176 225 223 228 253 1993-2016 Gabon 1993-2015 Indonesia 33 34 53 34 42 44 1973-2016 Iran 1973-2002 Iraq 365 349 555 434 369 477 1973-2016 Kuwait 123 196 177 135 323 156 1973-2016 Libya 59 17 1973-2016 Nigeria 269 218 241 234 272 160 1973-2016 Qatar 1973-2011

  10. Tectonic significance of Synrift sediment packages across the Congo continental margin

    SciTech Connect

    McGinnis, J.P.; Karner, G.D.; Driscoll, N.W. ); Brumbaugh, W.D. ); Cameron, N. )

    1993-09-01

    The tectonic and stratigraphic development of the Congo continental margin reflects the timing, magnitude, and distribution of lithospheric extension responsible for its formation. Details of the lithospheric extension process are recorded in the stratigraphic successions preserved along and across the margin. By using the stratal relationships (e.g., onlap, downlap, and truncation) and lithofacies determined from seismic reflection and exploratory well data as input into our basin-modeling strategy, we have developed an integrated approach to determine the relationship between the timing, magnitude, and distribution of lithospheric extension across the margin. Two hinge zones, an eastern and Atlantic hinge formed along the Congo margin in response to discrete extensional events occurring from the Berriasian to the Aptian. The eastern hinge zone demarcates the eastern limit of the broadly distributed Berriasian extension. This extension resulted in the formation of deep anoxic, lacustrine systems. In contrast, the Atlantic hinge, located [approximately]90 km west of the eastern hinge, marks the eastern limit of a second phase of extension, which began in the Hauterivian. Consequent footwall uplift and rotation exposed the earlier synrift and prerift stratigraphy to at least wave base causing varying amounts of erosional truncation across the Atlantic hinge zone along much of the Gabon, Congo, and Angola margins. The absence of the Melania Formation across the Congo margin implies that uplift of the Atlantic hinge was relatively minor compared to that across the Angola and Gabon margins. In addition, material eroded from the adjacent and topographically higher hinge zones may in part account for the thick wedge of sediment deposited seaward of the Congo Atlantic hinge. A third phase of extension reactivated both the eastern and Atlantic hinge zones and was responsible for creating the accommodation space for Marnes Noires source rock deposition.

  11. Atmospheric Properties from the 2006 Niamey Deployment and Climate Simulation with a Geodesic Grid Coupled Climate Model - First Quarter 2008

    SciTech Connect

    JH Mather; D Randall

    2007-12-30

    In 2008, the Atmospheric Radiation Measurement (ARM) program and the Climate Change Prediction Program (CCPP) have been asked to produce joint science metrics. For CCPP, the metrics will deal with a decade-long control simulation using geodesic grid-coupled climate model. For ARM, the metrics will deal with observations associated with the 2006 deployment of the ARM Mobile Facility (AMF) to Niamey, Niger. Specifically, ARM has been asked to deliver data products for Niamey that describe cloud, aerosol, and dust properties. The first quarter milestone is initial formulation of the algorithm to produce and make available, new continuous time series of retrieved cloud , aerosol and dust properties, based on results from the ARM Mobile Facility deployment in Niger, Africa. The first quarter milestone has been achieved.

  12. Slide 1

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    term Vertical Air Velocity and Precipitation Parameter Retrievals in Rainfall from 95-GHz Doppler Radar Spectra Edward P Luke 1 , Scott E Giangrande 2 , and Pavlos Kollias 2 1. Brookhaven National Laboratory 2. McGill University Air Velocity Retrieval Methodology Recent ARM Mobile Facility (AMF) deployments include extended operations in the diverse environments of Niamey, Niger and Germany's Black Forest. Capitalizing on the AMF's continuous record of vertically pointing 95 GHz cloud radar

  13. ARM - Niamey News

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    West AfricaNiamey News Niamey Deployment AMF Home Niamey Home Data Plots and Baseline Instruments Rainfall Record (PDF) Publications List, (PDF) Experiment Planning RADAGAST Proposal Outreach Fact Sheets RADAGAST (PDF) Annual Climate Cycle in Niger, Africa (PDF) Posters AMF Poster, French Version We're Going to Sample the Sky in Africa! News Campaign Images AMMA International News Niamey News Radar Wind Profiler Joins ARM Mobile Facility Instrument Suite May 15, 2006 W-Band Cloud Radar Added to

  14. Microsoft PowerPoint - 04_bedka_turner_awg_advertisement.ppt [Compatibility Mode]

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Properties at Niamey, Niger y g Using Downwelling Infrared Radiance Data Sarah Bedka and Dave Turner Space Science and Engineering Center University of Wisconsin Madison University of Wisconsin - Madison Aerosol working group breakout session M d 26 M h 2007 Monday 26 March 2007 ARM Science Team Meeting Monterey, California Background g * Airborne dust is common in the Sahel region f Af i of Africa * How important is this dust to the radiative balance and atmospheric heating in that balance and

  15. Atmospheric Properties from the 2006 Niamey Deployment and Climate Simulation with a Geodesic Grid Coupled Climate Model

    SciTech Connect

    Jensen, M; Johnson, K; Mather, J; Randall, D

    2008-03-01

    In 2008, the Atmospheric Radiation Measurement (ARM) Program and the Climate Change Prediction Program (CCPP) have been asked to produce joint science metrics. For CCPP, the metrics will deal with a decade-long control simulation using geodesic grid-coupled climate model. For ARM, the metrics will deal with observations associated with the 2006 deployment of the ARM Mobile Facility (AMF) to Niamey, Niger. Specifically, ARM has been asked to deliver data products for Niamey that describe cloud, aerosol, and dust properties.

  16. Atmospheric Radiation Measurement Radiative Atmospheric Divergence using ARM Mobile

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Radiative Atmospheric Divergence using ARM Mobile Facility, GERB, and AMMA Stations (RADAGAST) Beginning in January 2006, the ARM Mobile Facility (AMF) began supporting RADAGAST to provide the first well-sampled direct esti- mates of the energy balance across the atmosphere. The experiment is part of an ongoing international study of the West African monsoon system and Saharan dust storms. Stationed outside the Niger Meteo- rological Office at the Niamey International Airport, the AMF is located

  17. GGG024067 193..204

    Office of Scientific and Technical Information (OSTI)

    XG3-Genes | Genomes | Genetics INVESTIGATION Identification of a Classical Mutant in the Industrial Host Aspergillus niger by Systems Genetics: LaeA Is Required for Citric Acid Production and Regulates the Formation of Some Secondary Metabolites Jing Niu,* Mark Arentshorst,* P. Deepa S. Nair,* Ziyu Dai/ Scott E. Baker/ Jens C. Frisvad/ Kristian F. Nielsen/ Peter J. Punt,* ** and Arthur F.J. Ram*'1 *Molecular Microbiology and Biotechnology, Institute of Biology Leiden, Leiden University, 2333 BE,

  18. JeffersonSTM09.ppt

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    AOS: Measurements of Aerosol Optical and AOS: Measurements of Aerosol Optical and Cloud-forming Properties Cloud-forming Properties Anne Jefferson and John Ogren NOAA Environmental Science Research Laboratory CIRES, University of Colorado ARM STM 2009 Aerosol Observing Systems In-situ surface measurements of aerosol optical, chemical, size, hygroscopic and cloud-forming properties * SGP - ARM central facility Lamont, OK *AMF - Pt Reyes, CA 3/2005 - 9/2005 - Niamey, Niger 12/2005-1/2007 - Murg

  19. Kohl: A lead-hazardous eye makeup from the third world to the first world

    SciTech Connect

    Parry, C.; Eaton, J. )

    1991-08-01

    Kohl is a widely used traditional cosmetic. It is mainly worn around the eyes in Asia, Africa, and the Middle East. It may be a pervasive source of lead poisoning in those areas and among individuals from those areas who have immigrated to developed nations. Samples of kohl were purchased in Morocco, Mauritania, Great Britain, and the United States. Some of these samples originated from Pakistan, India, and Saudi Arabia. Kohl is widely believed to consist of antimony, but analysis consistently revealed only trace amounts of antimony. Nine of the twenty-two samples tested contained less than 0.6% lead; however, seven samples had lead levels in excess of 50%. The remainder ranged from 3.31 to 37.3%. Third-world-manufactured kohls were purchased in the United States and Britain, suggesting that this hazard is no longer confined to the third world. Those kohls that contained lead were sold in violation of laws on lead in cosmetics in both of these nations. Third-world physicians and health care workers appear to be unaware of possible lead uptake from unsuspected traditionally used items. Physicians in developed nations with patients from Asia, the Middle East, and North Africa need to factor in the possibility of past or present lead intake from unorthodox sources such as kohl.

  20. ARM - PI Product - Niamey Aerosol Optical Depths

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Aerosol Optical Depths ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send PI Product : Niamey Aerosol Optical Depths MFRSR irradiance data collected during the ACRF AMF deployment in Niamey, Niger have been used to derive AOD for five wavelength channels of the MFRSR. These data have been corrected to adjust for filter drift over the course of the campaign and contamination due to forward scattering as a result of

  1. Enhanced citric acid production in aspergillus with inactivated asparagine-linked glycosylation protein 3 (ALG3), and/or increased laeA expression

    SciTech Connect

    Dai, Ziyu; Baker, Scott E.

    2015-12-08

    Provided herein are fungi, such as Aspergillus niger, having a dolichyl-P-Man:Man(5)GlcNAc(2)-PP-dolichyl mannosyltransferase (Alg3) gene genetic inactivation, increased expression of a loss of aflR expression A (Lae), or both. In some examples, such mutants have several phenotypes, including an increased production of citric acid relative to the parental strain. Methods of using the disclosed fungi to make citric acid are also provided, as are compositions and kits including the disclosed fungi.

  2. Atmospheric Properties from the 2006 Niamey Deployment and Climate Simulation with a Geodesic Grid Coupled Climate Model Third Quarter 2008

    SciTech Connect

    JH Mather; DA Randall; CJ Flynn

    2008-06-30

    In 2008, the Atmospheric Radiation Measurement (ARM) Program and the Climate Change Prediction Program (CCPP) have been asked to produce joint science metrics. For CCPP, the metrics will deal with a decade-long control simulation using geodesic grid-coupled climate model. For ARM, the metrics will deal with observations associated with the 2006 deployment of the ARM Mobile Facility (AMF) to Niamey, Niger. Specifically, ARM has been asked to deliver data products for Niamey that describe cloud, aerosol, and dust properties. This report describes the aerosol optical depth (AOD) product.

  3. Gulf Stream Locale P. Michael and M. L. Daum Brookhaven National Laboratory

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    2010 2011 2012 2013 2014 2015 View History All Countries 2,254,145 2,129,181 1,905,552 1,650,598 1,438,615 1,385,579 1981-2015 Persian Gulf 429,791 482,680 576,149 524,793 449,578 353,894 1993-2015 OPEC* 1,194,872 1,113,798 1,079,695 892,754 783,979 706,394 1993-2015 Algeria 120,394 86,197 46,013 25,935 25,923 32,058 1993-2015 Angola 74,435 61,935 31,366 26,107 14,170 17,596 1993-2015 Ecuador 10,659 4,645 8,261 19,213 25,737 18,597 1993-2015 Gabon 4,213 11,299 8,112 3,643 1,841 687 1993-2015

  4. U.S. mine production of uranium, 1993-2011

    Gasoline and Diesel Fuel Update

    2010 2011 2012 2013 2014 2015 View History All Countries 4,304,533 4,174,210 3,878,852 3,598,454 3,372,904 3,448,734 1981-2015 Persian Gulf 624,638 679,403 789,082 733,325 684,235 549,906 1993-2015 OPEC* 1,790,811 1,662,720 1,563,273 1,357,907 1,181,458 1,056,471 1993-2015 Algeria 186,019 130,723 88,487 42,014 40,193 39,478 1993-2015 Angola 143,512 126,259 85,335 78,672 56,343 49,767 1993-2015 Ecuador 77,224 75,072 65,913 86,278 78,413 84,176 1993-2015 Gabon 17,022 12,557 15,886 8,993 6,531

  5. East Coast (PADD 1) Total Crude Oil and Products Imports

    Energy Information Administration (EIA) (indexed site)

    2010 2011 2012 2013 2014 2015 View History All Countries 922,432 859,818 727,383 661,835 605,839 632,218 1981-2015 Persian Gulf 32,645 36,655 49,578 36,276 39,750 28,276 1993-2015 OPEC* 297,725 276,478 216,695 191,739 122,057 95,156 1993-2015 Algeria 28,538 27,871 29,164 9,781 6,440 4,234 1993-2015 Angola 44,554 45,631 30,832 30,371 25,299 17,880 1993-2015 Ecuador 550 347 1,813 1,223 411 931 1995-2015 Gabon 12,809 1,258 6,179 4,800 2,700 3,792 1993-2015 Indonesia 2 1 356 474 526 1995-2015 Iraq

  6. Gulf Coast (PADD 3) Total Crude Oil and Products Imports

    Energy Information Administration (EIA) (indexed site)

    2010 2011 2012 2013 2014 2015 View History All Countries 2,254,145 2,129,181 1,905,552 1,650,598 1,438,615 1,385,579 1981-2015 Persian Gulf 429,791 482,680 576,149 524,793 449,578 353,894 1993-2015 OPEC* 1,194,872 1,113,798 1,079,695 892,754 783,979 706,394 1993-2015 Algeria 120,394 86,197 46,013 25,935 25,923 32,058 1993-2015 Angola 74,435 61,935 31,366 26,107 14,170 17,596 1993-2015 Ecuador 10,659 4,645 8,261 19,213 25,737 18,597 1993-2015 Gabon 4,213 11,299 8,112 3,643 1,841 687 1993-2015

  7. Gulf Coast (PADD 3) Total Crude Oil and Products Imports

    Energy Information Administration (EIA) (indexed site)

    Mar-16 Apr-16 May-16 Jun-16 Jul-16 Aug-16 View History All Countries 132,706 119,378 133,764 123,081 136,820 131,239 1981-2016 Persian Gulf 39,280 33,162 39,719 33,356 38,013 37,251 1993-2016 OPEC* 75,496 63,072 70,225 61,684 75,572 64,823 1993-2016 Algeria 3,755 4,047 2,788 4,493 3,973 3,503 1993-2016 Angola 2,810 3,248 2,140 1,804 3,320 1,321 1993-2016 Ecuador 1,074 352 684 523 854 990 1993-2016 Gabon 200 2 1993-2016 Indonesia 152 244 107 401 126 196 1993-2016 Iraq 8,980 8,284 11,984 8,958

  8. West Virginia Native Selected to Present at the Council for Chemical Research Me

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    2010 2011 2012 2013 2014 2015 View History All Countries 496,881 498,326 483,396 472,244 467,890 511,732 1981-2015 Persian Gulf 141,289 141,771 151,958 157,965 182,605 155,177 1993-2015 OPEC* 239,068 244,263 251,163 258,573 263,120 242,362 1993-2015 Algeria 7,112 8,226 9,236 6,298 7,830 3,186 1995-2015 Angola 19,904 17,681 23,137 22,194 16,874 14,291 1995-2015 Ecuador 66,015 70,080 55,839 65,842 52,265 64,648 1993-2015 Gabon 1,523 550 1,990 1995-2014 Indonesia 12,986 7,168 2,194 6,950 7,220

  9. Building international genomics collaboration for global health security

    DOE PAGES [OSTI]

    Cui, Helen H.; Erkkila, Tracy; Chain, Patrick S. G.; Vuyisich, Momchilo

    2015-12-07

    Genome science and technologies are transforming life sciences globally in many ways and becoming a highly desirable area for international collaboration to strengthen global health. The Genome Science Program at the Los Alamos National Laboratory is leveraging a long history of expertise in genomics research to assist multiple partner nations in advancing their genomics and bioinformatics capabilities. The capability development objectives focus on providing a molecular genomics-based scientific approach for pathogen detection, characterization, and biosurveillance applications. The general approaches include introduction of basic principles in genomics technologies, training on laboratory methodologies and bioinformatic analysis of resulting data, procurement, and installationmore » of next-generation sequencing instruments, establishing bioinformatics software capabilities, and exploring collaborative applications of the genomics capabilities in public health. Genome centers have been established with public health and research institutions in the Republic of Georgia, Kingdom of Jordan, Uganda, and Gabon; broader collaborations in genomics applications have also been developed with research institutions in many other countries.« less

  10. U.S. Crude Oil Imports

    Energy Information Administration (EIA) (indexed site)

    249,300 229,100 246,323 228,320 250,845 249,099 1920-2016 Persian Gulf 54,342 50,533 59,425 50,705 54,047 55,543 1993-2016 OPEC* 101,402 92,723 105,585 90,723 108,568 96,653 1993-2016 Algeria 604 599 1,253 2,449 1993-2016 Angola 4,951 6,516 4,995 3,837 8,892 4,248 1993-2016 Ecuador 8,188 5,292 6,962 6,702 7,069 7,854 1993-2016 Gabon 1993-2015 Indonesia 1,020 1,021 1,632 1,013 1,311 1,351 1993-2016 Iraq 11,326 10,480 17,213 13,011 11,429 14,792 1996-2016 Kuwait 3,812 5,881 5,478 4,052 10,025

  11. U.S. Total Crude Oil and Products Imports

    Energy Information Administration (EIA) (indexed site)

    2010 2011 2012 2013 2014 2015 View History All Countries 4,304,533 4,174,210 3,878,852 3,598,454 3,372,904 3,448,734 1981-2015 Persian Gulf 624,638 679,403 789,082 733,325 684,235 549,906 1993-2015 OPEC* 1,790,811 1,662,720 1,563,273 1,357,907 1,181,458 1,056,471 1993-2015 Algeria 186,019 130,723 88,487 42,014 40,193 39,478 1993-2015 Angola 143,512 126,259 85,335 78,672 56,343 49,767 1993-2015 Ecuador 77,224 75,072 65,913 86,278 78,413 84,176 1993-2015 Gabon 17,022 12,557 15,886 8,993 6,531

  12. U.S. Total Crude Oil and Products Imports

    Energy Information Administration (EIA) (indexed site)

    310,060 294,858 315,660 302,286 325,716 319,629 1981-2016 Persian Gulf 56,422 51,276 59,920 51,466 55,597 56,261 1993-2016 OPEC* 110,857 100,517 112,899 99,098 117,900 106,087 1993-2016 Algeria 4,558 4,113 3,161 5,487 5,926 5,240 1993-2016 Angola 5,323 7,265 4,995 3,837 9,277 4,942 1993-2016 Ecuador 8,188 5,466 7,133 6,702 7,245 7,854 1993-2016 Gabon 200 158 1993-2016 Indonesia 1,172 1,291 1,904 1,601 1,493 1,601 1993-2016 Iraq 11,326 10,480 17,213 13,011 12,094 15,120 1996-2016 Kuwait 3,812

  13. West Coast (PADD 5) Total Crude Oil and Products Imports

    Energy Information Administration (EIA) (indexed site)

    2010 2011 2012 2013 2014 2015 View History All Countries 496,881 498,326 483,396 472,244 467,890 511,732 1981-2015 Persian Gulf 141,289 141,771 151,958 157,965 182,605 155,177 1993-2015 OPEC* 239,068 244,263 251,163 258,573 263,120 242,362 1993-2015 Algeria 7,112 8,226 9,236 6,298 7,830 3,186 1995-2015 Angola 19,904 17,681 23,137 22,194 16,874 14,291 1995-2015 Ecuador 66,015 70,080 55,839 65,842 52,265 64,648 1993-2015 Gabon 1,523 550 1,990 1995-2014 Indonesia 12,986 7,168 2,194 6,950 7,220

  14. Integrating community perceptions and cultural diversity in social impact assessment in Nigeria

    SciTech Connect

    Nzeadibe, Thaddeus Chidi; Ajaero, Chukwuedozie Kelechukwu; Okonkwo, Emeka Emmanuel; Okpoko, Patrick Uche; Akukwe, Thecla Iheoma; Njoku-Tony, Roseline Feechi

    2015-11-15

    The Environmental Impact Assessment (EIA) Act of 1992 aimed to make the environment a central theme in development in Nigeria. Nevertheless, the extent of engagement with local cultures in the Nigerian EIA process is not statutorily guaranteed. While most EIAs in Nigeria have been for oil and gas projects in the Niger Delta, and have focused strongly on the biophysical environment, socio-economic and cultural aspects have remained marginal. The palpable neglect of community perceptions and cultural diversity in social impact assessment (SIA) in this region prone to conflict has tended to alienate the people in the decision-making process. Thus, despite claims to compliance with regulatory requirements for EIAs, and numerous purported sustainable development initiatives by international oil companies (IOCs), the region continues to face multiple sustainability challenges. This paper situates local perceptions and cultural diversity in participatory development and canvasses the integration of community perceptions and cultural diversity into SIA in the Niger Delta region. It is argued that doing this would be critical to ensuring acceptance and success of development actions within the context of local culture while also contributing to sustainable development policy in the region. - Highlights: • Nigeria EIA Act aimed to make the environment central to development in Nigeria. • Engagement with local communities in the process is not statutorily guaranteed. • SIAs in Nigeria neglect community perceptions and cultural diversity. • Article canvasses integrating community perceptions and cultural diversity in SIA. • Local acceptance in context of culture would yield sustainable development outcomes.

  15. Structural Analysis of N- and O-glycans Using ZIC-HILIC/Dialysis Coupled to NMR Detection

    SciTech Connect

    Qu, Yi; Feng, Ju; Deng, Shuang; Cao, Li; Zhang, Qibin; Zhao, Rui; Zhang, Zhaorui; Jiang, Yuxuan; Zink, Erika M.; Baker, Scott E.; Lipton, Mary S.; Pasa-Tolic, Ljiljana; Hu, Jian Z.; Wu, Si

    2014-11-19

    Protein glycosylation, an important and complex post-translational modification (PTM), is involved in various biological processes including the receptor-ligand and cell-cell interaction, and plays a crucial role in many biological functions. However, little is known about the glycan structures of important biological complex samples, and the conventional glycan enrichment strategy (i.e., size-exclusion column [SEC] separation,) prior to nuclear magnetic resonance (NMR) detection is time-consuming and tedious. In this study, we employed SEC, Zwitterionic hydrophilic interaction liquid chromatography (ZIC-HILIC), and ZIC-HILIC coupled with dialysis strategies to enrich the glycopeptides from the pronase E digests of RNase B, followed by NMR analysis of the glycoconjugate. Our results suggest that the ZIC-HILIC enrichment coupled with dialysis is the most efficient, which was thus applied to the analysis of biological complex sample, the pronase E digest of the secreted proteins from the fungi Aspergillus niger. The NMR spectra revealed that the secreted proteins from A. niger contain both N-linked glycans with a high-mannose core and O-linked glycans bearing mannose and glucose with 1->3 and 1->6 linkages. In all, our study provides compelling evidence that ZIC-HILIC separation coupled to dialysis is superior to the commonly used SEC separation to prepare glycopeptides for the downstream NMR analysis, which could greatly facilitate the future NMR-based glycoproteomics research.

  16. Central and southern Africa

    SciTech Connect

    McGrew, H.J.

    1981-10-01

    Exploration in central and southern Africa continued to expand during 1980. The greatest concentration of activity was in Nigeria. However, there was considerable increase in the level of exploratory work in Cameroon and Congo. Significant new finds have been made in Ivory Coast. Geological and geophysical activity was carried out in 18 of the countries, with those in the western part having the largest share. Seismic work involved 225 party months of operation. Most of this time was spent on land, but marine operations accounted for 73,389 km of new control. Gravity and magnetic data were recorded during the marine surveys, and several large aeromagnetic projects were undertaken to obtain a total of 164,498 line km of data. Exploratory and development drilling accounted for a total of 304 wells and 2,605,044 ft (794,212 m) of hole. The 92 exploratory wells that were drilled resulted in 47 oil and gas discoveries. In development drilling 89% of the 212 wells were successful. At the end of the year, 27 exploratory wells were underway, and 34 development wells were being drilled for a total of 61. Oil production from the countries that this review covers was 918,747,009 bbl in 1980, a drop of about 9% from the previous year. Countries showing a decline in production were Nigeria, Gabon, Cabinda, and Zaire. Increases were recorded in Cameroon, Congo, and Ghana. A new country was added to the list of producers when production from the Belier field in Ivory Coast came on stream. 33 figures, 15 tables.

  17. An environmental approach

    SciTech Connect

    Geerling, C.

    1996-11-01

    The Shell Petroleum Development Company is operating in southern Nigeria in the delta of the Niger River. This delta covers an area 70,000 square kin of coastal ridge barriers, mangroves, freshwater swamp forest and lowland rain forests. Over the past decades considerable changes has occurred through coastal zone modifications, upstream urban and hydrological infrastructure, deforestation, agriculture, fisheries, industrial development, oil operation, as well as demographic changes. The problems associated with these changes are: (1) over-exploitation of renewable natural resources and breakdown of traditional management structures; (2) impact from industry such as pollution and physical changes, and (3) a perception of lack of social and economic equity. This paper describes approaches to help counteract theses problems.

  18. Solar electricity for Africa: The case of Kenya

    SciTech Connect

    Plas, R.J. van der

    1997-12-01

    This paper presents results of two recent World Bank efforts made in Kenya, Niger, and Cameroon to study the impact of two different renewable projects, one a Micro-Lights program involving about 500 lanterns and the second a survey of 410 households using solar electricity systems. The Micro-Lights program showed that users have distinct preferences in the style of the lamps, that they are willing to spend cash, and that they demand good quality. They may be initially satisfied, but rapidly want more from their purchases. The photoelectric system survey touched less than 1% of such households, and looked at user education, system size, satisfaction, expectations, age of system, appliances, and expectations.

  19. Challenges in Whole-Genome Annotation of Pyrosequenced Eukaryotic Genomes

    SciTech Connect

    Kuo, Alan; Grigoriev, Igor

    2009-04-17

    Pyrosequencing technologies such as 454/Roche and Solexa/Illumina vastly lower the cost of nucleotide sequencing compared to the traditional Sanger method, and thus promise to greatly expand the number of sequenced eukaryotic genomes. However, the new technologies also bring new challenges such as shorter reads and new kinds and higher rates of sequencing errors, which complicate genome assembly and gene prediction. At JGI we are deploying 454 technology for the sequencing and assembly of ever-larger eukaryotic genomes. Here we describe our first whole-genome annotation of a purely 454-sequenced fungal genome that is larger than a yeast (>30 Mbp). The pezizomycotine (filamentous ascomycote) Aspergillus carbonarius belongs to the Aspergillus section Nigri species complex, members of which are significant as platforms for bioenergy and bioindustrial technology, as members of soil microbial communities and players in the global carbon cycle, and as agricultural toxigens. Application of a modified version of the standard JGI Annotation Pipeline has so far predicted ~;;10k genes. ~;;12percent of these preliminary annotations suffer a potential frameshift error, which is somewhat higher than the ~;;9percent rate in the Sanger-sequenced and conventionally assembled and annotated genome of fellow Aspergillus section Nigri member A. niger. Also,>90percent of A. niger genes have potential homologs in the A. carbonarius preliminary annotation. Weconclude, and with further annotation and comparative analysis expect to confirm, that 454 sequencing strategies provide a promising substrate for annotation of modestly sized eukaryotic genomes. We will also present results of annotation of a number of other pyrosequenced fungal genomes of bioenergy interest.

  20. Analytical Performance Characteristics of the Cepheid GeneXpert Ebola Assay for the Detection of Ebola Virus

    DOE PAGES [OSTI]

    Pinsky, Benjamin A.; Sahoo, Malaya K.; Sandlund, Johanna; Kleman, Marika; Kulkarni, Medha; Grufman, Per; Nygren, Malin; Kwiatkowski, Robert; Baron, Ellen Jo; Tenover, Fred; et al

    2015-11-12

    The recently developed Xpert® Ebola Assay is a novel nucleic acid amplification test for simplified detection of Ebola virus (EBOV) in whole blood and buccal swab samples. The assay targets sequences in two EBOV genes, lowering the risk for new variants to escape detection in the test. The objective of this report is to present analytical characteristics of the Xpert® Ebola Assay on whole blood samples. Our study evaluated the assay’s analytical sensitivity, analytical specificity, inclusivity and exclusivity performance in whole blood specimens. EBOV RNA, inactivated EBOV, and infectious EBOV were used as targets. The dynamic range of the assay,more » the inactivation of virus, and specimen stability were also evaluated. The lower limit of detection (LoD) for the assay using inactivated virus was estimated to be 73 copies/mL (95% CI: 51–97 copies/mL). The LoD for infectious virus was estimated to be 1 plaque-forming unit/mL, and for RNA to be 232 copies/mL (95% CI 163–302 copies/mL). The assay correctly identified five different Ebola viruses, Yambuku-Mayinga, Makona-C07, Yambuku-Ecran, Gabon-Ilembe, and Kikwit-956210, and correctly excluded all non-EBOV isolates tested. The conditions used by Xpert® Ebola for inactivation of infectious virus reduced EBOV titer by ≥6 logs. In conclusion, we found the Xpert® Ebola Assay to have high analytical sensitivity and specificity for the detection of EBOV in whole blood. It offers ease of use, fast turnaround time, and remote monitoring. The test has an efficient viral inactivation protocol, fulfills inclusivity and exclusivity criteria, and has specimen stability characteristics consistent with the need for decentralized testing. The simplicity of the assay should enable testing in a wide variety of laboratory settings, including remote laboratories that are not capable of performing highly complex nucleic acid amplification tests, and during outbreaks where time to detection is critical.« less

  1. Analytical Performance Characteristics of the Cepheid GeneXpert Ebola Assay for the Detection of Ebola Virus

    SciTech Connect

    Pinsky, Benjamin A.; Sahoo, Malaya K.; Sandlund, Johanna; Kleman, Marika; Kulkarni, Medha; Grufman, Per; Nygren, Malin; Kwiatkowski, Robert; Baron, Ellen Jo; Tenover, Fred; Denison, Blake; Higuchi, Russell; Van Atta, Reuel; Beer, Neil Reginald; Carrillo, Alda Celena; Naraghi-Arani, Pejman; Mire, Chad E.; Ranadheera, Charlene; Grolla, Allen; Lagerqvist, Nina; Persing, David H.

    2015-11-12

    The recently developed Xpert® Ebola Assay is a novel nucleic acid amplification test for simplified detection of Ebola virus (EBOV) in whole blood and buccal swab samples. The assay targets sequences in two EBOV genes, lowering the risk for new variants to escape detection in the test. The objective of this report is to present analytical characteristics of the Xpert® Ebola Assay on whole blood samples. Our study evaluated the assay’s analytical sensitivity, analytical specificity, inclusivity and exclusivity performance in whole blood specimens. EBOV RNA, inactivated EBOV, and infectious EBOV were used as targets. The dynamic range of the assay, the inactivation of virus, and specimen stability were also evaluated. The lower limit of detection (LoD) for the assay using inactivated virus was estimated to be 73 copies/mL (95% CI: 51–97 copies/mL). The LoD for infectious virus was estimated to be 1 plaque-forming unit/mL, and for RNA to be 232 copies/mL (95% CI 163–302 copies/mL). The assay correctly identified five different Ebola viruses, Yambuku-Mayinga, Makona-C07, Yambuku-Ecran, Gabon-Ilembe, and Kikwit-956210, and correctly excluded all non-EBOV isolates tested. The conditions used by Xpert® Ebola for inactivation of infectious virus reduced EBOV titer by ≥6 logs. In conclusion, we found the Xpert® Ebola Assay to have high analytical sensitivity and specificity for the detection of EBOV in whole blood. It offers ease of use, fast turnaround time, and remote monitoring. The test has an efficient viral inactivation protocol, fulfills inclusivity and exclusivity criteria, and has specimen stability characteristics consistent with the need for decentralized testing. The simplicity of the assay should enable testing in a wide variety of laboratory settings, including remote laboratories that are not capable of performing highly complex nucleic acid amplification tests, and during outbreaks where time to detection is critical.

  2. Initial Evaluation of Processing Methods for an Epsilon Metal Waste Form

    SciTech Connect

    Crum, Jarrod V.; Strachan, Denis M.; Zumhoff, Mac R.

    2012-06-11

    During irradiation of nuclear fuel in a reactor, the five metals, Mo, Pd, Rh, Ru, and Tc, migrate to the fuel grain boundaries and form small metal particles of an alloy known as epsilon metal ({var_epsilon}-metal). When the fuel is dissolved in a reprocessing plant, these metal particles remain behind with a residue - the undissolved solids (UDS). Some of these same metals that comprise this alloy that have not formed the alloy are dissolved into the aqueous stream. These metals limit the waste loading for a borosilicate glass that is being developed for the reprocessing wastes. Epsilon metal is being developed as a waste form for the noble metals from a number of waste streams in the aqueous reprocessing of used nuclear fuel (UNF) - (1) the {var_epsilon}-metal from the UDS, (2) soluble Tc (ion-exchanged), and (3) soluble noble metals (TRUEX raffinate). Separate immobilization of these metals has benefits other than allowing an increase in the glass waste loading. These materials are quite resistant to dissolution (corrosion) as evidenced by the fact that they survive the chemically aggressive conditions in the fuel dissolver. Remnants of {var_epsilon}-metal particles have survived in the geologically natural reactors found in Gabon, Africa, indicating that they have sufficient durability to survive for {approx} 2.5 billion years in a reducing geologic environment. Additionally, the {var_epsilon}-metal can be made without additives and incorporate sufficient foreign material (oxides) that are also present in the UDS. Although {var_epsilon}-metal is found in fuel and Gabon as small particles ({approx}10 {micro}m in diameter) and has survived intact, an ideal waste form is one in which the surface area is minimized. Therefore, the main effort in developing {var_epsilon}-metal as a waste form is to develop a process to consolidate the particles into a monolith. Individually, these metals have high melting points (2617 C for Mo to 1552 C for Pd) and the alloy is

  3. Characterization of Vertical Velocity and Drop Size Distribution Parameters in Widespread Precipitation at ARM Facilities

    SciTech Connect

    Giangrande S. E.; Luke, E. P.; Kollias, P.

    2012-02-01

    Extended, high-resolution measurements of vertical air motion and median volume drop diameter D0 in widespread precipitation from three diverse Atmospheric Radiation Measurement Program (ARM) locations [Lamont, Oklahoma, Southern Great Plains site (SGP); Niamey, Niger; and Black Forest, Germany] are presented. The analysis indicates a weak (0-10 cm{sup -1}) downward air motion beneath the melting layer for all three regions, a magnitude that is to within the typical uncertainty of the retrieval methods. On average, the hourly estimated standard deviation of the vertical air motion is 0.25 m s{sup -1} with no pronounced vertical structure. Profiles of D0 vary according to region and rainfall rate. The standard deviation of 1-min-averaged D0 profiles for isolated rainfall rate intervals is 0.3-0.4 mm. Additional insights into the form of the raindrop size distribution are provided using available dual-frequency Doppler velocity observations at SGP. The analysis suggests that gamma functions better explain paired velocity observations and radar retrievals for the Oklahoma dataset. This study will be useful in assessing uncertainties introduced in the measurement of precipitation parameters from ground-based and spaceborne remote sensors that are due to small-scale variability.

  4. Comparison of Simulated and Observed Continental Tropical Anvil Clouds and Their Radiative Heating Profiles

    SciTech Connect

    Powell, Scott W.; Houze, R.; Kumar, Anil; McFarlane, Sally A.

    2012-09-06

    Vertically pointing millimeter-wavelength radar observations of anvil clouds extending from mesoscale convective systems (MCSs) that pass over an Atmospheric Radiation Measurement Program (ARM) field site in Niamey, Niger, are compared to anvil structures generated by the Weather Research and Forecasting (WRF) mesoscale model using six different microphysical schemes. The radar data provide the statistical distribution of the radar reflectivity values as a function of height and anvil thickness. These statistics are compared to the statistics of the modeled anvil cloud reflectivity at all altitudes. Requiring the model to be statistically accurate at all altitudes is a stringent test of the model performance. The typical vertical profile of radiative heating in the anvil clouds is computed from the radar observations. Variability of anvil structures from the different microphysical schemes provides an estimate of the inherent uncertainty in anvil radiative heating profiles. All schemes underestimate the optical thickness of thin anvils and cirrus, resulting in a bias of excessive net anvil heating in all of the simulations.

  5. Atmospheric Properties from the 2006 Niamey Deployment and Climate Simulation with a Geodesic Grid Coupled Climate Model Fourth Quarter 2008

    SciTech Connect

    JH Mather; DA Randall; CJ Flynn

    2008-09-30

    In 2008, the Atmospheric Radiation Measurement (ARM) Program and the Climate Change Prediction Program (CCPP) have been asked to produce joint science metrics. For CCPP, the metrics will deal with a decade-long control simulation using geodesic grid-coupled climate model. For ARM, the metrics will deal with observations associated with the 2006 deployment of the ARM Mobile Facility (AMF) to Niamey, Niger. Specifically, ARM has been asked to deliver data products for Niamey that describe cloud, aerosol, and dust properties. The first quarter milestone was the initial formulation of the algorithm for retrieval of these properties. The second quarter milestone included the time series of ARM-retrieved cloud properties and a year-long CCPP control simulation. The third quarter milestone included the time series of ARM-retrieved aerosol optical depth and a three-year CCPP control simulation. This final fourth quarter milestone includes the time-series of aerosol and dust properties and a decade-long CCPP control simulation.

  6. Generation of transgenic wheat (Triticum aestivum L.) accumulating heterologous endo-xylanase or ferulic acid esterase in the endosperm

    SciTech Connect

    Harholt, Jesper; Bach, Inga C; Lind-Bouquin, Solveig; Nunan, Kylie J.; Madrid, Susan M.; Brinch-Pedersen, Henrik; Holm, Preben B.; Scheller, Henrik V.

    2009-12-08

    Endo-xylanase (from Bacillus subtilis) or ferulic acid esterase (from Aspergillus niger) were expressed in wheat under the control of the endosperm specific 1DX5 glutenin promoter. Constructs both with and without the endoplasmic reticulum retention signal KDEL were used. Transgenic plants were recovered in all four cases but no qualitative differences could be observed whether KDEL was added or not. Endo-xylanase activity in transgenic grains was increased between two and three fold relative to wild type. The grains were shriveled and had a 25-33% decrease in mass. Extensive analysis of the cell walls showed a 10-15% increase in arabinose to xylose ratio, a 50% increase in the proportion of water extractable arabinoxylan, and a shift in the MW of the water extractable arabinoxylan from being mainly larger than 85 kD to being between 2 kD and 85 kD. Ferulic acid esterase expressing grains were also shriveled and the seed weight was decreased by 20-50%. No ferulic acid esterase activity could be detected in wild type grains whereas ferulic acid esterase activity was detected in transgenic lines. The grain cell walls had 15-40% increase in water unextractable arabinoxylan and a decrease in monomeric ferulic acid between 13 and 34%. In all the plants the observed changes are consistent with a plant response that serves to minimize the effect of the heterologously expressed enzymes by increasing arabinoxylan biosynthesis and cross-linking.

  7. Application of nonmarine genetic sequence stratigraphic concepts to reservoir characterization in the fluvial-lacustrine Westbourne Formation, Eromanga basin, Australia

    SciTech Connect

    Hamilton, D.S.; Holtz, M.H.; Yeh, J. )

    1996-01-01

    A high-resolution sequence stratigraphic analysis of the Westbourne Formation identified five chronostratigraphic genetic units each separated by thin, but laterally extensive, shale markers interpreted as maximum lacustrine flooding surfaces. The flooding surfaces were primarily identified by their lateral persistence and high gamma-ray log response, but marked changes in bedding architecture across these surfaces also facilitated their identification. The changes in bedding architecture reflect reorganization of the depositional systems from one depositional episode to the next. The Westbourne Formation is interpreted as a series of fluvially-dominated lacustrine delta sequences. Although the genetic units generally display lobate to digitate sand body geometries, sediment transport directions between successive units is highly variable. The complex morphology of the distributary network and accompanying high degree of facies variability indicates shallow lacustrine sedimentation similar to that in the modern inland Niger River delta which provides a modern analog. Westbourne fluid flow trends were established by mapping water encroachment during field development, observing differential depletion in repeat formation test data, and monitoring production response to water shut-off workovers. The fluid flow trends emphasized the highly layered character of the Westbourne reservoirs and integrating these trends with the geologic architecture defined stratigraphic controls on Westbourne flow units. The stratigraphic framework proved essential for unraveling sediment transport patterns and thus, predicting reservoir sandstone distribution. The stratigraphic framework also provided the key to understanding water encroachment and pressure a depletion which, when combined with predicted sandstone geometries, identified several step-out drilling and recompletion opportunities.

  8. Application of nonmarine genetic sequence stratigraphic concepts to reservoir characterization in the fluvial-lacustrine Westbourne Formation, Eromanga basin, Australia

    SciTech Connect

    Hamilton, D.S.; Holtz, M.H.; Yeh, J.

    1996-12-31

    A high-resolution sequence stratigraphic analysis of the Westbourne Formation identified five chronostratigraphic genetic units each separated by thin, but laterally extensive, shale markers interpreted as maximum lacustrine flooding surfaces. The flooding surfaces were primarily identified by their lateral persistence and high gamma-ray log response, but marked changes in bedding architecture across these surfaces also facilitated their identification. The changes in bedding architecture reflect reorganization of the depositional systems from one depositional episode to the next. The Westbourne Formation is interpreted as a series of fluvially-dominated lacustrine delta sequences. Although the genetic units generally display lobate to digitate sand body geometries, sediment transport directions between successive units is highly variable. The complex morphology of the distributary network and accompanying high degree of facies variability indicates shallow lacustrine sedimentation similar to that in the modern inland Niger River delta which provides a modern analog. Westbourne fluid flow trends were established by mapping water encroachment during field development, observing differential depletion in repeat formation test data, and monitoring production response to water shut-off workovers. The fluid flow trends emphasized the highly layered character of the Westbourne reservoirs and integrating these trends with the geologic architecture defined stratigraphic controls on Westbourne flow units. The stratigraphic framework proved essential for unraveling sediment transport patterns and thus, predicting reservoir sandstone distribution. The stratigraphic framework also provided the key to understanding water encroachment and pressure a depletion which, when combined with predicted sandstone geometries, identified several step-out drilling and recompletion opportunities.

  9. Geological and environmental remote sensing for international petroleum operations

    SciTech Connect

    Ellis, J.M.

    1995-11-01

    Remote sensing allows the petroleum industry to make better and quicker interpretations of geological and environmental conditions in areas of present and future operations. Often remote sensing (including aerial photographs) is required because existing maps are out-of-date, too small of scale, or provide only limited information. Implementing remote sensing can lead to lower project costs and reduced risk. The same satellite and airborne data can be used effectively for both geological and environmental applications. For example, earth scientists can interpret new lithologic, structural, and geomorphic information from near-infrared and radar imagery in terrains as diverse as barren desert and tropical jungle. Environmental applications with these and other imagery include establishing baselines, assessing impact by documenting changes through time, and mapping land-use, habitat, and vegetation. Higher resolution sensors provide an up-to-date overview of onshore and offshore petroleum facilities, whereas sensors capable of oblique viewing can be used to generate topographic maps. Geological application in Yemen involved merging Landsat TM and SPOT imagery to obtain exceptional lithologic discrimination. In the Congo, a topographic map to plan field operations was interpreted from the overlapping radar strips. Landsat MSS and TM, SPOT, and Russian satellite images with new aerial photographs are being used in the Tengiz supergiant oil field of Kazakhstan to help establish an environmental baseline, generate a base map, locate wells, plan facilities, and support a geographical information system (GIS). In the Niger delta, Landsat TM and SPOT are being used to plan pipeline routes and seismic lines, and to monitor rapid shoreline changes and population growth. Accurate coastlines, facility locations, and shoreline types are being extracted from satellite images for use in oil spill models.

  10. Observations of the impact of a major Saharan dust storm on the atmospheric radiation balance

    SciTech Connect

    Slingo, A.; Ackerman, Thomas P.; Allan, R. P.; Kassianov, Evgueni I.; McFarlane, Sally A.; Robinson, G. J.; Barnard, James C.; Miller, Mark; Harries, J. E.; Russell, J. E.; Dewitte, S.

    2006-12-01

    Saharan dust storms transport large quantities of material across the African continent and beyond, causing widespread disruption and hazards to health. The dust may be deposited into the Atlantic Ocean, where it provides an important source of nutrients1, and may be carried as far as the West Indies. Such events may also influence the growth of Atlantic tropical cyclones. Satellite observations have enabled estimates to be made of the effect of the dust on the radiation budget seen from space, but only limited in situ observations have hitherto been made at the surface. Here we present the first simultaneous and continuous observations of the effect of a major dust storm in March 2006 on the radiation budget both at the top of the atmosphere (TOA) and at the surface. We combine data from the Geostationary Earth Radiation Budget (GERB) broadband radiometer and the Spinning Enhanced Visible and InfraRed Imager (SEVIRI) on the Meteosat-8 weather satellite with remote sensing and in situ measurements from a new Mobile Facility located in Niamey, Niger (13{sup o} 29'N, 2{sup o} 10'E), operated by the US Atmospheric Radiation Measurement (ARM) program. We show that the dust produced major perturbations to the radiation budget seen from space and from the surface. By combining the two datasets, we estimate the impact on the radiation budget of the atmosphere itself. Using independent data from the Mobile Facility, we derive the optical properties of the dust and input these and other information into radiation codes to simulate the radiative fluxes. Comparisons with the observed fluxes provides a stringent test of the ability of the codes to represent the radiative properties of this important component of the global aerosol burden.

  11. Development of an environmental relative moldiness index for US homes

    SciTech Connect

    Vesper, Sephen J.; McKinstry, Craig A.; Haugland, Richard A.; Wymer, Larry; Bradham, Karen; Ashley, Peter; Cox, David J.; DeWalt, Gary; Friedman, Warren

    2007-08-01

    As part of the HUD American Healthy Survey, dust samples were collected by vacuuming 2 m2 in the bedroom plus 2 m2 in the living room of a nationally representative 1096 homes in the USA using the Mitest sampler. Five mg of sieved (300 pore, nylon mesh) dust was analyzed by mold specific quantitative PCR for the 36 EPA Mold Panel Species. On this basis, an environmental relative moldiness index (ERMI) was created with values ranging from about -10 to 20 (lowest to highest). In order to try to reduce the cost of this analysis, the number of test species was reduced by selecting only those species with a national average concentration of 30 cell equivalents (CE) per mg dust or greater. Only 19 of 36 species met this criterion. (In 40% of the homes, an additional 46 species were quantified from the same dust sample. All of these species had average concentrations less than 30 CE per mg dust.) These 19 species were then categorized into two groups based on their coefficient of variation (CV). If the CV was > 9, the mold was placed in Category 1 (10/19) and the other molds were placed in Category 2 (9/19). Using these Categories, the sum of the log-transformed concentrations of three Category 2 molds (C. herbarum, A. alternata and C. cladosporioides Type 1) was subtracted from the sum of the log-transformed concentrations of the ten Category 1 molds (Aspergillus niger, A. ochraceus, A. penicillioides, A. restrictus, A. sydowii, Chaetomium globosum, Eurotium amsteldoami, Paecilomyces variotii, Penicillium chrysogenum and Wallemia sebi). Assembling these values for the 1096 AHHS homes from lowest to highest produced the American relative moldiness index (ARMI). The correlation between the ERMI and ARMI values was 0.88. The ERMI or ARMI scales may be useful as a standard for mold exposure estimates in epidemiological studies.

  12. Atmospheric Radiation Measurement program climate research facility operations quarterly report October 1 - December 31, 2006.

    SciTech Connect

    Sisterson, D. L.

    2007-03-14

    Individual raw data streams from instrumentation at the Atmospheric Radiation Measurement (ARM) Program Climate Research Facility (ACRF) fixed and mobile sites are collected and sent to the Data Management Facility (DMF) at Pacific Northwest National Laboratory (PNNL) for processing in near real time. Raw and processed data are then sent daily to the ACRF Archive, where they are made available to users. For each instrument, we calculate the ratio of the actual number of data records received daily at the Archive to the expected number of data records. The results are tabulated by (1) individual data stream, site, and month for the current year and (2) site and fiscal year dating back to 1998. Table 1 shows the accumulated maximum operation time (planned uptime), the actual hours of operation, and the variance (unplanned downtime) for the period October 1 through December 31, 2006, for the fixed and mobile sites. Although the AMF is currently up and running in Niamey, Niger, Africa, the AMF statistics are reported separately and not included in the aggregate average with the fixed sites. The first quarter comprises a total of 2,208 hours. For all fixed sites, the actual data availability (and therefore actual hours of operation) exceeded the individual (and well as aggregate average of the fixed sites) operational goal for the first quarter of fiscal year (FY) 2007. The Site Access Request System is a web-based database used to track visitors to the fixed sites, all of which have facilities that can be visited. The NSA locale has the Barrow and Atqasuk sites. The SGP site has a Central Facility, 23 extended facilities, 4 boundary facilities, and 3 intermediate facilities. The TWP locale has the Manus, Nauru, and Darwin sites. NIM represents the AMF statistics for the current deployment in Niamey, Niger, Africa. PYE represents the AMF statistics for the Point Reyes, California, past deployment in 2005. In addition, users who do not want to wait for data to be

  13. Partitioned Waveform Inversion Applied to Eurasia and Northern Africa

    SciTech Connect

    bedle, H; Matzel, E; Flanagan, M

    2006-07-27

    . The model now extends as far east in Africa to cover Chad and Niger, and reaches south to cover Zambia. The model is also stretched eastward to cover the eastern half of India, and northward to cover the southern portion of Scandinavia.

  14. Epsilon Metal Summary Report FY 2011

    SciTech Connect

    Strachan, Denis M.; Crum, Jarrod V.; Zumhoff, Mac R.; Bovaird, Chase C.; Windisch, Charles F.; Riley, Brian J.

    2011-09-30

    The Epsilon-metal ({var_epsilon}-metal) phase was selected in FY 2009 as a potential waste form to for immobilizing the noble metals found in the undissolved solids + aqueous stream, and the soluble Tc from ion-exchange process, each resulting from proposed aqueous reprocessing. {var_epsilon}-metal phase is observed in used nuclear fuel and the natural reactors of Oklobono in Gabon, where the long-term corrosion behavior was demonstrated. This makes {var_epsilon}-metal a very attractive waste form. Last fiscal year, {var_epsilon}-metal was successfully fabricated by combining the five-metals, Mo, Ru, Rh, Pd and Re (surrogate for Tc), into pellets followed by consolidation with an arc melter. The arc melter produced fully dense samples with the epsilon structure. However, some chemistry differences were observed in the microstructure that resulted in regions rich in Re and Mo, and others rich in Pd, while Ru and Rh remained fairly constant throughout. This year, thermal stability (air), and corrosion testing of the samples fabricated by arc melting were the main focus for experimental work. Thermal stability was measured with a differential scanning calorimeter - thermogravimetric analyzer, by both ramp heating as well as step heating. There is clear evidence during the ramp heating experiment of an exothermic event + a weight loss peak both beginning at {approx}700 C. Step heating showed an oxidation event at {approx}690 C with minimal weight gain that occurs just before the weight loss event at 700 C. The conclusion being that the e-metal begins to oxidize and then become volatile. These findings are useful for considering the effects of voloxidation process. Three different pellets were subjected to electrochemical testing to study the corrosion behavior of the epsilon-metal phase in various conditions, namely acidic, basic, saline, and inert. Test was done according to an interim procedure developed for the alloy metal waste form. First an open circuit potential

  15. Atmospheric Radiation Measurement program climate research facility operations quarterly report.

    SciTech Connect

    Sisterson, D. L.; Decision and Information Sciences

    2006-09-06

    represents the average percent of the time (24 hours per day, 91 days for this quarter) the instruments were operating this quarter. Table 1 shows the accumulated maximum operation time (planned uptime), the actual hours of operation, and the variance (unplanned downtime) for the period April 1 through June 30, 2006, for the fixed and mobile sites. Although the AMF is currently up and running in Niamey, Niger, Africa, the AMF statistics are reported separately and not included in the aggregate average with the fixed sites. The third quarter comprises a total of 2,184 hours. For all fixed sites (especially the TWP locale) and the AMF, the actual data availability (and therefore actual hours of operation) exceeded the individual (and well as aggregate average of the fixed sites) operational goal for the third quarter of fiscal year (FY) 2006.

  16. Atmospheric Radiation Measurement program climate research facility operations quarterly report July 1 - September 30, 2008.

    SciTech Connect

    Sisterson, D. L.

    2008-10-08

    Individual raw data streams from instrumentation at the Atmospheric Radiation Measurement (ARM) Program Climate Research Facility (ACRF) fixed and mobile sites are collected and sent to the Data Management Facility (DMF) at Pacific Northwest National Laboratory (PNNL) for processing in near real-time. Raw and processed data are then sent daily to the ACRF Archive, where they are made available to users. For each instrument, we calculate the ratio of the actual number of data records received daily at the Archive to the expected number of data records. The results are tabulated by (1) individual data stream, site, and month for the current year and (2) site and fiscal year (FY) dating back to 1998. Table 1 shows the accumulated maximum operation time (planned uptime), actual hours of operation, and variance (unplanned downtime) for the period July 1 - September 30, 2008, for the fixed sites. The AMF has been deployed to China, but the data have not yet been released. The fourth quarter comprises a total of 2,208 hours. The average exceeded our goal this quarter. The Site Access Request System is a web-based database used to track visitors to the fixed and mobile sites, all of which have facilities that can be visited. The NSA locale has the Barrow and Atqasuk sites. The SGP site has a central facility, 23 extended facilities, 4 boundary facilities, and 3 intermediate facilities. The TWP locale has the Manus, Nauru, and Darwin sites. HFE represents the AMF statistics for the Shouxian, China, deployment in 2008. FKB represents the AMF statistics for the Haselbach, Germany, past deployment in 2007. NIM represents the AMF statistics for the Niamey, Niger, Africa, past deployment in 2006. PYE represents just the AMF Archive statistics for the Point Reyes, California, past deployment in 2005. In addition, users who do not want to wait for data to be provided through the ACRF Archive can request a research account on the local site data system. The seven computers for the

  17. Atmospheric Radiation Measurement program climate research facility operations quarterly report January 1 - March 31, 2008.

    SciTech Connect

    Sisterson, D. L.

    2008-05-22

    Individual raw data streams from instrumentation at the Atmospheric Radiation Measurement (ARM) Program Climate Research Facility (ACRF) fixed and mobile sites are collected and sent to the Data Management Facility (DMF) at Pacific Northwest National Laboratory (PNNL) for processing in near real time. Raw and processed data are then sent daily to the ACRF Archive, where they are made available to users. For each instrument, we calculate the ratio of the actual number of data records received daily at the Archive to the expected number of data records. The results are tabulated by (1) individual data stream, site, and month for the current year and (2) site and fiscal year (FY) dating back to 1998. Table 1 shows the accumulated maximum operation time (planned uptime), actual hours of operation, and variance (unplanned downtime) for the period January 1 - March 31, 2008, for the fixed sites. The AMF is being deployed to China and is not in operation this quarter. The second quarter comprises a total of 2,184 hours. The average as well as the individual site values exceeded our goal this quarter. The Site Access Request System is a web-based database used to track visitors to the fixed and mobile sites, all of which have facilities that can be visited. The NSA locale has the Barrow and Atqasuk sites. The SGP site has a central facility, 23 extended facilities, 4 boundary facilities, and 3 intermediate facilities. The TWP locale has the Manus, Nauru, and Darwin sites. FKB represents the AMF statistics for the Haselbach, Germany, past deployment in 2007. NIM represents the AMF statistics for the Niamey, Niger, Africa, past deployment in 2006. PYE represents just the AMF Archive statistics for the Point Reyes, California, past deployment in 2005. In addition, users who do not want to wait for data to be provided through the ACRF Archive can request a research account on the local site data system. The seven computers for the research accounts are located at the Barrow

  18. Atmospheric Radiation Measurement program climate research facility operations quarterly report October 1 - December 31, 2007.

    SciTech Connect

    Sisterson, D. L.

    2008-01-24

    Individual raw data streams from instrumentation at the Atmospheric Radiation Measurement (ARM) Program Climate Research Facility (ACRF) fixed and mobile sites are collected and sent to the Data Management Facility (DMF) at Pacific Northwest National Laboratory (PNNL) for processing in near real time. Raw and processed data are then sent daily to the ACRF Archive, where they are made available to users. For each instrument, we calculate the ratio of the actual number of data records received daily at the Archive to the expected number of data records. The results are tabulated by (1) individual data stream, site, and month for the current year and (2) site and fiscal year (FY) dating back to 1998. Table 1 shows the accumulated maximum operation time (planned uptime), actual hours of operation, and variance (unplanned downtime) for the period October 1 - December 31, 2007, for the fixed sites and the mobile site. The AMF has been deployed to Germany and this was the final operational quarter. The first quarter comprises a total of 2,208 hours. Although the average exceeded our goal this quarter, a series of severe weather events (i.e., widespread ice storms) disrupted utility services, which affected the SGP performance measures. Some instruments were covered in ice and power and data communication lines were down for more than 10 days in some areas of Oklahoma and Kansas, which resulted in lost data at the SGP site. The Site Access Request System is a web-based database used to track visitors to the fixed sites, all of which have facilities that can be visited. The NSA locale has the Barrow and Atqasuk sites. The SGP site has a central facility, 23 extended facilities, 4 boundary facilities, and 3 intermediate facilities. The TWP locale has the Manus, Nauru, and Darwin sites. The AMF completed its mission at the end of this quarter in Haselback, Germany (FKB designation). NIM represents the AMF statistics for the Niamey, Niger, Africa, past deployment in 2006. PYE