WorldWideScience

Sample records for annual growth bands

  1. Annual Growth Bands in Hymenaea courbaril

    Energy Technology Data Exchange (ETDEWEB)

    Westbrook, J A; Guilderson, T P; Colinvaux, P A

    2004-02-09

    One significant source of annual temperature and precipitation data arises from the regular annual secondary growth rings of trees. Several tropical tree species are observed to form regular growth bands that may or may not form annually. Such growth was observed in one stem disk of the tropical legume Hymenaea courbaril near the area of David, Panama. In comparison to annual reference {Delta}{sup 14}C values from wood and air, the {Delta}{sup 14}C values from the secondary growth rings formed by H. courbaril were determined to be annual in nature in this one stem disk specimen. During this study, H. courbaril was also observed to translocate recently produced photosynthate into older growth rings as sapwood is converted to heartwood. This process alters the overall {Delta}{sup 14}C values of these transitional growth rings as cellulose with a higher {Delta}{sup 14}C content is translocated into growth rings with a relatively lower {Delta}{sup 14}C content. Once the annual nature of these growth rings is established, further stable isotope analyses on H. courbaril material in other studies may help to complete gaps in the understanding of short and of long term global climate patterns.

  2. Intra-annual patterns in adult band-tailed pigeon survival estimates

    Science.gov (United States)

    Casazza, Michael L.; Coates, Peter S.; Overton, Cory T.; Howe, Kristy H.

    2015-01-01

    Context: The band-tailed pigeon (Patagioenas fasciata) is a migratory species occurring in western North America with low recruitment potential and populations that have declined an average of 2.4% per year since the 1960s. Investigations into band-tailed pigeon demographic rates date back to the early 1900s, and existing annual survival rate estimates were derived in the 1970s using band return data.

  3. Dendrometer bands made easy: using modified cable ties to measure incremental growth of trees

    Science.gov (United States)

    Anemaet, Evelyn R.; Middleton, Beth A.

    2013-01-01

    Dendrometer bands are a useful way to make sequential repeated measurements of tree growth, but traditional dendrometer bands can be expensive, time consuming, and difficult to construct in the field. An alternative to the traditional method of band construction is to adapt commercially available materials. This paper describes how to construct and install dendrometer bands using smooth-edged, stainless steel, cable tie banding and attachable rollerball heads. As a performance comparison, both traditional and cable tie dendrometer bands were installed on baldcypress trees at the National Wetlands Research Center in Lafayette, Louisiana, by both an experienced and a novice worker. Band installation times were recorded, and growth of the trees as estimated by the two band types was measured after approximately one year, demonstrating equivalence of the two methods. This efficient approach to dendrometer band construction can help advance the knowledge of long-term tree growth in ecological studies.

  4. Fallout plutonium and natural radionuclides in annual bands of the coral Montastrea annularis, St. Croix, U.S. Virgin Islands

    International Nuclear Information System (INIS)

    Benninger, L.K.; Dodge, R.E.

    1986-01-01

    We have investigated the banded coral Montastrea annularis as a recorder of the history of fallout Pu in surface seawater. Thirty annual growth bands representing growth during 'coral years' 1951-1980, were subsampled from M. annularis collected at St. Croix, U.S. Virgin Islands. sup(239,240)Pu was finite in coral years 1954-1980, and the coral Pu record is very simply related to the fallout history of 90 Sr. Peaks in coral Pu in coral years 1959 and 1964 correspond to fallout peaks in 1959 and 1963, respectively. Peak broadening and time lags in the coral Pu record, as compared to the 90 Sr fallout record are consistent with retention of fallout Pu in surface seawater for about two years (characteristic removal time) during the period of major fallout, and possibly longer thereafter. The simplicity of the coral Pu record and its close correspondence with fallout history suggest that sup(239,240)Pu was incorporated into the coral skeleton with constant discrimination relative to Ca; the effects of speciation and oxidation state upon Pu incorporation are presently unknown. (author)

  5. Annual survival and site fidelity of northern pintails banded on the Yukon-Kuskokwim Delta, Alaska

    Science.gov (United States)

    Nicolai, Christopher A.; Flint, Paul L.; Wege, Michael L.

    2005-01-01

    We banded northern pintails (Anas acuta; n = 13,645) at a single site on the Yukon-Kuskokwim Delta (YKD), Alaska, USA, from 1990 to 2001. We used recaptures from our site in combination with hunter recoveries to model annual survival, recovery rates, and fidelity to our capture location. Most recoveries (>90%) occurred in the Pacific Flyway with 64% reported from California's Central Valley. Our top candidate models allowed survival to vary by sex but not by age or year. Estimated annual survival was 77.6% (95% CI: 73.9-81.0%) for males and 60.2% (95% CI: 53.2-67.0%) for females. Reporting rates varied by age, sex, and year; estimates for adult males exceeded those for adult females by 3.5 times. Within sexes, reporting rates of hatch-year pintails exceeded those of adults. Estimated recovery rates were considerably lower than those estimated during the 1950s-1970s for winter banded pintails (Hestbeck 1993b), but there were no differences in survival rates. This suggests that changes in harvest regulations may not have influenced annual survival in this population. The propensity of banded pintails to return to our capture site (fidelity rate) varied between sexes and was positively correlated with water conditions in prairie Canada. Our estimates of fidelity rates varied from 77.4% to 87.2% for males and 89.8% to 94.3% for females. Our fidelity estimates suggest that some level of subpopulation structuring may exist for northern pintails. Additionally, our estimates of fidelity support previous observations of northern pintails overflying poor wetland habitat conditions on the Canadian prairies.

  6. Banding the world together; the global growth of control banding and qualitative occupational risk management.

    Science.gov (United States)

    Zalk, David M; Heussen, Ga Henri

    2011-12-01

    Control Banding (CB) strategies to prevent work-related illness and injury for 2.5 billion workers without access to health and safety professionals has grown exponentially this last decade. CB originates from the pharmaceutical industry to control active pharmaceutical ingredients without a complete toxicological basis and therefore no occupational exposure limits. CB applications have broadened into chemicals in general - including new emerging risks like nanomaterials and recently into ergonomics and injury prevention. CB is an action-oriented qualitative risk assessment strategy offering solutions and control measures to users through "toolkits". Chemical CB toolkits are user-friendly approaches used to achieve workplace controls in the absence of firm toxicological and quantitative exposure information. The model (technical) validation of these toolkits is well described, however firm operational analyses (implementation aspects) are lacking. Consequentially, it is often not known if toolkit use leads to successful interventions at individual workplaces. This might lead to virtual safe workplaces without knowing if workers are truly protected. Upcoming international strategies from the World Health Organization Collaborating Centers request assistance in developing and evaluating action-oriented procedures for workplace risk assessment and control. It is expected that to fulfill this strategy's goals, CB approaches will continue its important growth in protecting workers.

  7. Banding the World Together; The Global Growth of Control Banding and Qualitative Occupational Risk Management

    Directory of Open Access Journals (Sweden)

    David M. Zalk

    2011-12-01

    Full Text Available Control Banding (CB strategies to prevent work-related illness and injury for 2.5 billion workers without access to health and safety professionals has grown exponentially this last decade. CB originates from the pharmaceutical industry to control active pharmaceutical ingredients without a complete toxicological basis and therefore no occupational exposure limits. CB applications have broadened into chemicals in general - including new emerging risks like nanomaterials and recently into ergonomics and injury prevention. CB is an action-oriented qualitative risk assessment strategy offering solutions and control measures to users through “toolkits”. Chemical CB toolkits are user-friendly approaches used to achieve workplace controls in the absence of firm toxicological and quantitative exposure information. The model (technical validation of these toolkits is well described, however firm operational analyses (implementation aspects are lacking. Consequentially, it is often not known if toolkit use leads to successful interventions at individual workplaces. This might lead to virtual safe workplaces without knowing if workers are truly protected. Upcoming international strategies from the World Health Organization Collaborating Centers request assistance in developing and evaluating action-oriented procedures for workplace risk assessment and control. It is expected that to fulfill this strategy’s goals, CB approaches will continue its important growth in protecting workers.

  8. The growth of government annual budget through taxes collection

    Science.gov (United States)

    Maiga, Sekou; Xu, Feng Ju

    2017-09-01

    In this case study we examine the relationship between the collection of taxes and the growth of government annual revenues (case of republic of Mali). Taxation is the most important source of revenue for modern governments, typically accounting for ninety percent or more of their income, Taxes revenues has contributed a big chunk of funds to the Malian Treasury, about 40%, with our focus being on the years (2012-2017). The primary economic goals of developing countries are to increase the rate of economic growth and hence per capita income, which leads to a higher standard of living. Government needs money to be able to execute its social obligations to the public and these social obligations include but not limited to the provision of infrastructure and social services. Progressive tax rate can be employed to achieve equitable distribution of resources. After economic modeling and estimation, we realized that there is a positive correlation between taxes collection changes and the government annual revenue.

  9. Visible bands of ammonia: band strengths, curves of growth, and the spatial distribution of ammonia on Jupiter

    International Nuclear Information System (INIS)

    Lutz, B.L.; Owen, T.

    1980-01-01

    We report room-temperature laboratory studies of the 5520 A (6ν 1 ) and 6475 A (5ν 1 ) bands of self-broadened ammonia at column densities ranging from 1.7--435.7 meter-amagats (m-am). Detailed equivalent-width measurements at 24 different pressure-pathlength combinations corresponding to four pressures between 44 and 689 torr and pathlengths between 32 and 512 m are used to determin curves of growth and integrated band strengths. The band strengths for the 6ν 1 and 5ν 1 overtones are 5520 A: S=0.096 +- 0.005 cm -1 (m-am) -1 and 6475 A: S=0.63 +- 0.03 cm -1 (m-am) -1 , respectively.Using these band strengths and curves of growth, we analyze new spatially resolved spectra of Jupiter showing a nonhomogeneous distribution of ammonia in the Jovian atmosphere. The observed variations in the CH 4 /NH 3 mixing ratio are interpreted as evidence of altitude-dependent depletion of ammonia in the atmosphere

  10. Banding the World Together; The Global Growth of Control Banding and Qualitative Occupational Risk Management

    OpenAIRE

    Zalk, David M; Heussen, Ga Henri

    2011-01-01

    Control Banding (CB) strategies to prevent work-related illness and injury for 2.5 billion workers without access to health and safety professionals has grown exponentially this last decade. CB originates from the pharmaceutical industry to control active pharmaceutical ingredients without a complete toxicological basis and therefore no occupational exposure limits. CB applications have broadened into chemicals in general - including new emerging risks like nanomaterials and recently into erg...

  11. Formation of banded vegetation patterns resulted from interactions between sediment deposition and vegetation growth.

    Science.gov (United States)

    Huang, Tousheng; Zhang, Huayong; Dai, Liming; Cong, Xuebing; Ma, Shengnan

    2018-03-01

    This research investigates the formation of banded vegetation patterns on hillslopes affected by interactions between sediment deposition and vegetation growth. The following two perspectives in the formation of these patterns are taken into consideration: (a) increased sediment deposition from plant interception, and (b) reduced plant biomass caused by sediment accumulation. A spatial model is proposed to describe how the interactions between sediment deposition and vegetation growth promote self-organization of banded vegetation patterns. Based on theoretical and numerical analyses of the proposed spatial model, vegetation bands can result from a Turing instability mechanism. The banded vegetation patterns obtained in this research resemble patterns reported in the literature. Moreover, measured by sediment dynamics, the variation of hillslope landform can be described. The model predicts how treads on hillslopes evolve with the banded patterns. Thus, we provide a quantitative interpretation for coevolution of vegetation patterns and landforms under effects of sediment redistribution. Copyright © 2018. Published by Elsevier Masson SAS.

  12. National health expenditure projections: modest annual growth until coverage expands and economic growth accelerates.

    Science.gov (United States)

    Keehan, Sean P; Cuckler, Gigi A; Sisko, Andrea M; Madison, Andrew J; Smith, Sheila D; Lizonitz, Joseph M; Poisal, John A; Wolfe, Christian J

    2012-07-01

    For 2011-13, US health spending is projected to grow at 4.0 percent, on average--slightly above the historically low growth rate of 3.8 percent in 2009. Preliminary data suggest that growth in consumers' use of health services remained slow in 2011, and this pattern is expected to continue this year and next. In 2014, health spending growth is expected to accelerate to 7.4 percent as the major coverage expansions from the Affordable Care Act begin. For 2011 through 2021, national health spending is projected to grow at an average rate of 5.7 percent annually, which would be 0.9 percentage point faster than the expected annual increase in the gross domestic product during this period. By 2021, federal, state, and local government health care spending is projected to be nearly 50 percent of national health expenditures, up from 46 percent in 2011, with federal spending accounting for about two-thirds of the total government share. Rising government spending on health care is expected to be driven by faster growth in Medicare enrollment, expanded Medicaid coverage, and the introduction of premium and cost-sharing subsidies for health insurance exchange plans.

  13. Seasonal changes in stable carbon isotope ratios within annual growth rings of Pinus radiata

    International Nuclear Information System (INIS)

    Walcroft, A.; Silvester, W.; Whitehead, D.; Kelliher, F.

    1997-01-01

    The stable isotope composition of photosynthetically assimilated carbon (δ 13 C) is determined by the ratio of the leaf internal CO 2 concentration (c i ) to that of the ambient air (c a ), and so reflects the contribution of both stomatal conductance (g s ) and the rate of photosynthesis (A). Assimilated carbon which is subsequently laid down as wood in annual growth rings may therefore represent a time integrated record of physiological responses by the whole tree to seasonal changes in the environmental variables regulating growth. We analysed the stable carbon isotope composition of Pinus radiata wood collected from two plantation forest sites in New Zealand which differ markedly in temperature, rainfall and soil characteristics. For both sites, discs were cut from the stem of several trees near ground level and whole wood samples were taken from within individual annual growth rings over a number of years. At one site, diameter bands were installed over the 1994 - 1996 growing seasons in order to date precisely the formation of wood during that time. Trees at each site consistently showed a seasonal pattern in the stable isotope composition of wood within individual growth rings. The amplitude of seasonal δ 13 C variation at the wet and dry sites were 1-2 per thousand and 4 per thousand respectively. Mean δ 13 C values from the wet site were 3 per thousand more 13 C depleted than those from the dry site implying lower water-use efficiency (carbon assimilation per unit transpiration). A process-based, model of stomatal conductance and CO 2 assimilation was combined with a soil-water balance model to estimate the average daily leaf-level intercellular CO 2 concentration (c i ). Over two growing seasons at each site there was generally good agreement between mean canopy-level c i derived from the tree-ring δ 13 C data and modelled leaf-level c i levels. Further, the ratio of annual CO 2 assimilation to transpiration estimated by the model for each site

  14. Growth of Wide Band Gap II-VI Compound Semiconductors by Physical Vapor Transport

    Science.gov (United States)

    Su, Ching-Hua; Sha, Yi-Gao

    1995-01-01

    The studies on the crystal growth and characterization of II-VI wide band gap compound semiconductors, such as ZnTe, CdS, ZnSe and ZnS, have been conducted over the past three decades. The research was not quite as extensive as that on Si, III-V, or even narrow band gap II-VI semiconductors because of the high melting temperatures as well as the specialized applications associated with these wide band gap semiconductors. In the past several years, major advances in the thin film technology such as Molecular Beam Epitaxy (MBE) and Metal Organic Chemical Vapor Deposition (MOCVD) have demonstrated the applications of these materials for the important devices such as light-emitting diode, laser and ultraviolet detectors and the tunability of energy band gap by employing ternary or even quaternary systems of these compounds. At the same time, the development in the crystal growth of bulk materials has not advanced far enough to provide low price, high quality substrates needed for the thin film growth technology.

  15. Validation of annual growth rings in freshwater mussel shells using cross dating .Can

    Science.gov (United States)

    Andrew L. Rypel; Wendell R. Haag; Robert H. Findlay

    2009-01-01

    We examined the usefulness of dendrochronological cross-dating methods for studying long-term, interannual growth patterns in freshwater mussels, including validation of annual shell ring formation. Using 13 species from three rivers, we measured increment widths between putative annual rings on shell thin sections and then removed age-related variation by...

  16. Growth patterns and annual growth cycle of Acacia karroo Hayne in ...

    African Journals Online (AJOL)

    ... karroo; alice; botany; compensatory growth; condition; development; eastern cape; emergence; environmental conditions; field study; growth cycle; growth initiation; growth patterns; growth strategy; leaf growth; plant growth; savanna; shoot growth; soil depth; soil moisture; south africa; university of fort hare; water stress ...

  17. Anthropogenic 236U recorded in annually banded coral skeleton at Majuro atoll, the equatorial Pacific

    International Nuclear Information System (INIS)

    Sakaguchi, Aya; Eto, Asuka; Takahashi, Yoshio; Steier, Peter; Yamazaki, Atsuko; Watanabe, Tsuyoshi; Sasaki, Keiichi; Yamano, Hiroya

    2013-01-01

    Historical 236 U/ 238 U atom ratio and concentration of 236 U were determined by Accelerator Mass Spectrometry (AMS) in skeletons of dated modern coral core sample collected from Majuro atoll, equatorial Pacific, to reconstruct anthropogenic 236 U inputs to the Equatorial Pacific. The maximum hydrogen bomb-pulses of 236 U/ 238 U and 236 U concentration, 2.83x10 -9 and 1.85x10 7 atom/g, in an annually resolved coral core were captured in 1954 (Operation Castle at Bikini and Enewetok atolls). The values were abruptly decreased in a few years, and they have been gradually decreased over time. Our results allow studies of not only the present distribution pattern, but gives access to the temporal evolution of 236 U in surface seawater of North Equatorial Current which is introduced to the Japan Sea and the North West Pacific Ocean as Kuroshio and Tsushima currents over the past decades. (author)

  18. Occurrence of annual growth rings in Rhizophora mangle in a region with low climate seasonality

    Directory of Open Access Journals (Sweden)

    BRUNNA T. SOUZA

    2016-01-01

    Full Text Available ABSTRACT The formation of annual growth rings has been confirmed for several mangrove species in the last decade, among which is the Rhizophora mangle. However, the record of annual rings for this species was made in a region with high hydric seasonality, a widely recognized induction factor of annual rings in tropical species. In this sense, the present study aimed to verify the occurrence of annual growth rings in R. mangle in the mangroves of Guaratiba (Rio de Janeiro, Southeastern Brazil, a region with low hydric seasonality. For this purpose, the crossdating technique was applied in ten trees collected with known age (seven years. The growth rings are characterized by alternating layers of low vessel density (earlywood and high vessel density (latewood. Multiple regression analysis indicated that growth rings width variation is driven by precipitation, water surplus, water deficit and water storage. Crossdating analysis confirmed the existence of annual growth rings in the R. mangle in Guaratiba. This discovery in a region with low hydric seasonality increases the dendrocronological potential of this species and suggests the importance of biological factors (eg. phenological behavior as complementary inductors for the formation of growth rings in this species.

  19. An Annual Plant Growth Proxy in the Mojave Desert Using MODIS-EVI Data

    Directory of Open Access Journals (Sweden)

    Kathryn A. Thomas

    2008-12-01

    Full Text Available In the arid Mojave Desert, the phenological response of vegetation is largely dependent upon the timing and amount of rainfall, and maps of annual plant cover at any one point in time can vary widely. Our study developed relative annual plant growth models as proxies for annual plant cover using metrics that captured phenological variability in Moderate-Resolution Imaging Spectroradiometer (MODIS Enhanced Vegetation Index (EVI satellite images. We used landscape phenologies revealed in MODIS data together with ecological knowledge of annual plant seasonality to develop a suite of metrics to describe annual growth on a yearly basis. Each of these metrics was applied to temporally-composited MODIS-EVI images to develop a relative model of annual growth. Each model was evaluated by testing how well it predicted field estimates of annual cover collected during 2003 and 2005 at the Mojave National Preserve. The best performing metric was the spring difference metric, which compared the average of three spring MODIS-EVI composites of a given year to that of 2002, a year of record drought. The spring difference metric showed correlations with annual plant cover of R2 = 0.61 for 2005 and R2 = 0.47 for 2003. Although the correlation is moderate, we consider it supportive given the characteristics of the field data, which were collected for a different study in a localized area and are not ideal for calibration to MODIS pixels. A proxy for annual growth potential was developed from the spring difference metric of 2005 for use as an environmental data layer in desert tortoise habitat modeling. The application of the spring difference metric to other imagery years presents potential for other applications such as fuels, invasive species, and dust-emission monitoring in the Mojave Desert.

  20. An Annual Plant Growth Proxy in the Mojave Desert Using MODIS-EVI Data.

    Science.gov (United States)

    Wallace, Cynthia S A; Thomas, Kathryn A

    2008-12-03

    In the arid Mojave Desert, the phenological response of vegetation is largely dependent upon the timing and amount of rainfall, and maps of annual plant cover at any one point in time can vary widely. Our study developed relative annual plant growth models as proxies for annual plant cover using metrics that captured phenological variability in Moderate-Resolution Imaging Spectroradiometer (MODIS) Enhanced Vegetation Index (EVI) satellite images. We used landscape phenologies revealed in MODIS data together with ecological knowledge of annual plant seasonality to develop a suite of metrics to describe annual growth on a yearly basis. Each of these metrics was applied to temporally-composited MODIS-EVI images to develop a relative model of annual growth. Each model was evaluated by testing how well it predicted field estimates of annual cover collected during 2003 and 2005 at the Mojave National Preserve. The best performing metric was the spring difference metric, which compared the average of three spring MODIS-EVI composites of a given year to that of 2002, a year of record drought. The spring difference metric showed correlations with annual plant cover of R² = 0.61 for 2005 and R² = 0.47 for 2003. Although the correlation is moderate, we consider it supportive given the characteristics of the field data, which were collected for a different study in a localized area and are not ideal for calibration to MODIS pixels. A proxy for annual growth potential was developed from the spring difference metric of 2005 for use as an environmental data layer in desert tortoise habitat modeling. The application of the spring difference metric to other imagery years presents potential for other applications such as fuels, invasive species, and dust-emission monitoring in the Mojave Desert.

  1. Multibunch emittance growth and its corrections in S-Band linear collider

    International Nuclear Information System (INIS)

    Gao, J.

    1994-11-01

    Multibunch emittance growths caused by long range wake fields with the misalignments of accelerating structures and quadrupoles in S-Band linear collider are studied. Tolerances for the misalignment errors of accelerating structures and quadrupoles are given corresponding to different detuned+damped structures. At the end of main linac, emittance corrector (EC) is proposed to be used to reduce further the multibunch emittance. Numerical simulations show that the effect of EC is obvious (multibunch emittance can be reduced about one order of magnitude), and it is believed that this kind of EC will be necessary for future linear colliders. (author). 16 refs., 21 figs., 4 tabs

  2. Heavy metal contents in growth bands of Porites corals: Record of anthropogenic and human developments from the Jordanian Gulf of Aqaba

    International Nuclear Information System (INIS)

    Al-Rousan, Saber A.; Al-Shloul, Rashid N.; Al-Horani, Fuad A.; Abu-Hilal, Ahmad H.

    2007-01-01

    In order to assess pollutants and impact of environmental changes in the coastal region of the Jordanian Gulf of Aqaba, concentrations of six metals were traced through variations in 5 years growth bands sections of recent Porties coral skeleton. X-radiography showed annual growth band patterns extending back to the year 1925. Baseline metal concentrations in Porites corals were established using 35 years-long metal record from late Holocene coral (deposited in pristine environment) and coral from reef that is least exposed to pollution in the marine reserve in the Gulf of Aqaba. The skeleton samples of the collected corals were acid digested and analyzed for their Cd, Cu, Fe, Mn, Pb and Zn content using Flame Atomic Absorption Spectrophotometer (FAAS). All metal profiles (except Fe and Zn) recorded the same metal signature from recent coral (1925-2005) in which low steady baseline levels were displayed in growth bands older than 1965, similar to those obtained from fossil and unpolluted corals. Most metals showed dramatic increase (ranging from 17% to 300%) in growth band sections younger than 1965 suggesting an extensive contamination of the coastal area since the mid sixties. This date represents the beginning of a period that witnessed increasing coastal activities, constructions and urbanization. This has produced a significant reduction in coral skeletal extension rates. Results from this study strongly suggest that Porites corals have a high tendency to accumulate heavy metals in their skeletons and therefore can serve as proxy tools to monitor and record environmental pollution (bioindicators) in the Gulf of Aqaba

  3. Heavy metal contents in growth bands of Porites corals: Record of anthropogenic and human developments from the Jordanian Gulf of Aqaba

    Energy Technology Data Exchange (ETDEWEB)

    Al-Rousan, Saber A. [Marine Science Station, University of Jordan and Yarmouk University, P.O. Box 195, Aqaba 77110 (Jordan)], E-mail: s.rousan@ju.edu.jo; Al-Shloul, Rashid N. [Department of Earth and Environmental Science, Faculty of Science, Yarmouk University, Irbid 21163 (Jordan); Al-Horani, Fuad A. [Marine Science Station, University of Jordan and Yarmouk University, P.O. Box 195, Aqaba 77110 (Jordan); Abu-Hilal, Ahmad H. [Department of Earth and Environmental Science, Faculty of Science, Yarmouk University, Irbid 21163 (Jordan)

    2007-12-15

    In order to assess pollutants and impact of environmental changes in the coastal region of the Jordanian Gulf of Aqaba, concentrations of six metals were traced through variations in 5 years growth bands sections of recent Porties coral skeleton. X-radiography showed annual growth band patterns extending back to the year 1925. Baseline metal concentrations in Porites corals were established using 35 years-long metal record from late Holocene coral (deposited in pristine environment) and coral from reef that is least exposed to pollution in the marine reserve in the Gulf of Aqaba. The skeleton samples of the collected corals were acid digested and analyzed for their Cd, Cu, Fe, Mn, Pb and Zn content using Flame Atomic Absorption Spectrophotometer (FAAS). All metal profiles (except Fe and Zn) recorded the same metal signature from recent coral (1925-2005) in which low steady baseline levels were displayed in growth bands older than 1965, similar to those obtained from fossil and unpolluted corals. Most metals showed dramatic increase (ranging from 17% to 300%) in growth band sections younger than 1965 suggesting an extensive contamination of the coastal area since the mid sixties. This date represents the beginning of a period that witnessed increasing coastal activities, constructions and urbanization. This has produced a significant reduction in coral skeletal extension rates. Results from this study strongly suggest that Porites corals have a high tendency to accumulate heavy metals in their skeletons and therefore can serve as proxy tools to monitor and record environmental pollution (bioindicators) in the Gulf of Aqaba.

  4. Mourning dove hunting regulation strategy based on annual harvest statistics and banding data

    Science.gov (United States)

    Otis, D.L.

    2006-01-01

    Although managers should strive to base game bird harvest management strategies on mechanistic population models, monitoring programs required to build and continuously update these models may not be in place. Alternatively, If estimates of total harvest and harvest rates are available, then population estimates derived from these harvest data can serve as the basis for making hunting regulation decisions based on population growth rates derived from these estimates. I present a statistically rigorous approach for regulation decision-making using a hypothesis-testing framework and an assumed framework of 3 hunting regulation alternatives. I illustrate and evaluate the technique with historical data on the mid-continent mallard (Anas platyrhynchos) population. I evaluate the statistical properties of the hypothesis-testing framework using the best available data on mourning doves (Zenaida macroura). I use these results to discuss practical implementation of the technique as an interim harvest strategy for mourning doves until reliable mechanistic population models and associated monitoring programs are developed.

  5. Verification of annual growth rings in Egyptian trees by C-14 method

    International Nuclear Information System (INIS)

    Belacy, N.; Abou El-Nour, F.; Jacoby, G.C.

    1990-01-01

    Annual growth rings in trees were thought to be due to sharp seasonal variations in the precipitation rates during the year. Accordingly temperature zone trees such as Egyptian trees were supposed to be away from this phenomenon. The temperature zones which are meant here are those of no sharp seasonal variations in the precipitation rates. The present study applied carbon-14 dating to prove that the growth rings in some Egyptian trees are annual. The method was based on the tropospheric measurements of C-14 during the period 1954-1981. C-14 exhibited a sharp peak resulting from the ever greater series of nuclear tests during 1963-1965. The presence of this peak for Egyptian trees proved that they form annual growth rings. (orig.) [de

  6. Annual and intra-annual growth dynamics of Myricaria elegans shrubs in arid Himalaya

    Czech Academy of Sciences Publication Activity Database

    Doležal, Jiří; Lehečková, Eliška; Sohar, Kristina; Dvorský, Miroslav; Kopecký, Martin; Chlumská, Z.; Wild, Jan; Altman, Jan

    2016-01-01

    Roč. 30, č. 3 (2016), s. 761-773 ISSN 0931-1890 R&D Projects: GA ČR GA13-13368S Institutional support: RVO:67985939 Keywords : Climate–growth relationship * Flooding * Tree-rings Subject RIV: EF - Botanics Impact factor: 1.842, year: 2016

  7. Study on coral annual banding for the investigation of Asian monsoon; Asian monsoon to sango nenrin kenkyu

    Energy Technology Data Exchange (ETDEWEB)

    Suzuki, A. [Geological Survey of Japan, Tsukuba (Japan); Kawabata, H. [Tohoku University, Sendai (Japan)

    1998-07-01

    A coral skeleton is sampled at Kenya`s Malindi National Marine Park situated west of the Seychelles, and it offers information about the Afro-Asian monsoon. An X-ray profile of the specimen discloses the seasonal variation in the density of the coral skeleton. The oxygen isotopic ratio, which is generally affected by the seawater oxygen isotopic ratio composition which is dependent on the surface layer water temperature and fresh water, is found dominated, in the coral skeleton, practically by the surface layer water temperature. Accordingly, the oxygen isotopic ratio represents the seasonal and annual variations in the surface layer water temperature. It is inferred that the emergence of Ba/Ca ratio peaks in December into January reflects the presence of Ba from rivers, and there are indications that the Somali current has transported water to the coral sampling area from the Galana River which is the greatest river in Kenya. Five of the Ba/Ca ratio peaks coincide with peaks in the UV fluorescent band, which is attributed to the presence of terrigenous organic matters. The ENSO and Asian monsoon phenomena are estimated on the basis of the findings described above. 11 refs., 6 figs.

  8. A technique to identify annual growth rings in Eucalyptus grandis using annual measurements of diameter at breast height and gamma ray densitometry

    CSIR Research Space (South Africa)

    Naidoo, Sasha

    2010-06-01

    Full Text Available A technique was developed to identify annual growth rings in E. grandis using a combination of annual measurements of diameter at breast height (DBH) from permanent sample plot (PSP) datasets and bark-pith density profiles. By assessing the pattern...

  9. A Constitutive Description for Shape Memory Alloys with the Growth of Martensite Band

    Directory of Open Access Journals (Sweden)

    Weiguo Li

    2014-01-01

    Full Text Available Based on the experimental results and the finite element analysis, a constitutive model is proposed for two phase shape memory alloys by introducing a compensative volumetric strain into a constrained relationship between the two phases, accounting for the reduced constraint due to the growth of martensite band. The pseudoelasticity of NiTi shape memory alloy micro-tube, subjected to pure tension, is analyzed and compared with the experimental results. It can be seen that the pseudoelastic behavior, especially the phenomena of a stress drop during tension processes, can be well described with the proposed model. The proposed model separates the complicated constitutive behavior of a shape memory alloy (SMA into simple responses arising respectively from its two phases, taking into account laminar microstructure, the thickness of martensite phase and the interaction between the two phases, and provides an easy but comprehensive method for the description of the constitutive behavior of SMAs under complex thermomechanical loading.

  10. Development of GaInNAsSb alloys: Growth, band structure, optical properties and applications

    International Nuclear Information System (INIS)

    Harris, James S. Jr.; Kudrawiec, R.; Yuen, H.B.; Bank, S.R.; Bae, H.P.; Wistey, M.A.; Jackrel, D.; Pickett, E.R.; Sarmiento, T.; Goddard, L.L.; Lordi, V.; Gugov, T.

    2007-01-01

    In the past few years, GaInNAsSb has been found to be a potentially superior material to both GaInNAs and InGaAsP for communications wavelength laser applications. It has been observed that due to the surfactant role of antimony during epitaxy, higher quality material can be grown over the entire 1.2-1.6 μm range on GaAs substrates. In addition, it has been discovered that antimony in GaInNAsSb also works as a constituent that significantly modifies the valence band. These findings motivated a systematic study of GaInNAsSb alloys with widely varying compositions. Our recent progress in growth and materials development of GaInNAsSb alloys and our fabrication of 1.5-1.6 μm lasers are discussed in this paper. We review our recent studies of the conduction band offset in (Ga,In) (N,As,Sb)/GaAs quantum wells and discuss the growth challenges of GaInNAsSb alloys. Finally, we report record setting long wavelength edge emitting lasers and the first monolithic VCSELs operating at 1.5 μm based on GaInNAsSb QWs grown on GaAs. Successful development of GaInNAsSb alloys for lasers has led to a much broader range of potential applications for this material including: solar cells, electroabsorption modulators, saturable absorbers and far infrared optoelectronic devices and these are also briefly discussed in this paper. (copyright 2007 WILEY-VCH Verlag GmbH and Co. KGaA, Weinheim) (orig.)

  11. Development of GaInNAsSb alloys: Growth, band structure, optical properties and applications

    Energy Technology Data Exchange (ETDEWEB)

    Harris, James S. Jr.; Kudrawiec, R.; Yuen, H.B.; Bank, S.R.; Bae, H.P.; Wistey, M.A.; Jackrel, D.; Pickett, E.R.; Sarmiento, T.; Goddard, L.L.; Lordi, V.; Gugov, T. [Solid State and Photonics Laboratory, Stanford University, CIS-X 328, Via Ortega, Stanford, California 94305-4075 (United States)

    2007-08-15

    In the past few years, GaInNAsSb has been found to be a potentially superior material to both GaInNAs and InGaAsP for communications wavelength laser applications. It has been observed that due to the surfactant role of antimony during epitaxy, higher quality material can be grown over the entire 1.2-1.6 {mu}m range on GaAs substrates. In addition, it has been discovered that antimony in GaInNAsSb also works as a constituent that significantly modifies the valence band. These findings motivated a systematic study of GaInNAsSb alloys with widely varying compositions. Our recent progress in growth and materials development of GaInNAsSb alloys and our fabrication of 1.5-1.6 {mu}m lasers are discussed in this paper. We review our recent studies of the conduction band offset in (Ga,In) (N,As,Sb)/GaAs quantum wells and discuss the growth challenges of GaInNAsSb alloys. Finally, we report record setting long wavelength edge emitting lasers and the first monolithic VCSELs operating at 1.5 {mu}m based on GaInNAsSb QWs grown on GaAs. Successful development of GaInNAsSb alloys for lasers has led to a much broader range of potential applications for this material including: solar cells, electroabsorption modulators, saturable absorbers and far infrared optoelectronic devices and these are also briefly discussed in this paper. (copyright 2007 WILEY-VCH Verlag GmbH and Co. KGaA, Weinheim) (orig.)

  12. Uranium mobility across annual growth rings in three deciduous tree species.

    Science.gov (United States)

    McHugh, Kelly C; Widom, Elisabeth; Spitz, Henry B; Wiles, Gregory C; Glover, Sam E

    2018-02-01

    Black walnut (Juglans nigra), slippery elm (Ulmus rubra), and white ash (Fraxinus americana) trees were evaluated as potential archives of past uranium (U) contamination. Like other metals, U mobility in annual growth rings of trees is dependent on the tree species. Uranium concentrations and isotopic compositions (masses 234, 235, 236, and 238) were analyzed by thermal ionization mass spectrometry to test the efficacy of using tree rings to retroactively monitor U pollution from the FFMPC, a U purification facility operating from 1951 to 1989. This study found non-natural U (depleted U and detectable 236 U) in growth rings of all three tree species that pre-dated the start of operations at FFMPC and compositional trends that did not correspond with known contamination events. Therefore, the annual growth rings of these tree species cannot be used to reliably monitor the chronology of U contamination. Copyright © 2017 Elsevier Ltd. All rights reserved.

  13. Plant growth-promoting Burkholderia species isolated from annual ryegrass in Portuguese soils.

    Science.gov (United States)

    Castanheira, N; Dourado, A C; Kruz, S; Alves, P I L; Delgado-Rodríguez, A I; Pais, I; Semedo, J; Scotti-Campos, P; Sánchez, C; Borges, N; Carvalho, G; Barreto Crespo, M T; Fareleira, P

    2016-03-01

    To search for culturable Burkholderia species associated with annual ryegrass in soils from natural pastures in Portugal, with plant growth-promoting effects. Annual ryegrass seedlings were used to trap Burkholderia from two different soils in laboratory conditions. A combined approach using genomic fingerprinting and sequencing of 16S rRNA and recA genes resulted in the identification of Burkholderia strains belonging to the species Burkholderia graminis, Burkholderia fungorum and the Burkholderia cepacia complex. Most strains were able to solubilize mineral phosphate and to synthesize indole acetic acid; some of them could produce siderophores and antagonize the phytopathogenic oomycete, Phytophthora cinnamomi. A strain (G2Bd5) of B. graminis was selected for gnotobiotic plant inoculation experiments. The main effects were the stimulation of root growth and enhancement of leaf lipid synthesis and turnover. Fluorescence in situ hybridization and confocal laser microscopy evidenced that strain G2Bd5 is a rhizospheric and endophytic colonizer of annual ryegrass. This work revealed that annual ryegrass can naturally associate with members of the genus Burkholderia. A novel plant growth promoting strain of B. graminis was obtained. The novel strain belongs to the plant-associated Burkholderia cluster and is a promising candidate for exploitation as plant inoculant in field conditions. © 2015 The Society for Applied Microbiology.

  14. Comparison of signaling interactions determining annual and perennial plant growth in response to low temperature

    Directory of Open Access Journals (Sweden)

    Astrid eWingler

    2015-01-01

    Full Text Available Low temperature inhibits plant growth despite the fact that considerable rates of photosynthetic activity can be maintained. Instead of lower rates of photosynthesis, active inhibition of cell division and expansion is primarily responsible for reduced growth. This results in sink limitation and enables plants to accumulate carbohydrates that act as compatible solutes or are stored throughout the winter to enable re-growth in spring. Regulation of growth in response to temperature therefore requires coordination with carbon metabolism, e.g. via the signaling metabolite trehalose-6-phosphate. The phytohormones gibberellins (GA and jasmonate (JA play an important role in regulating growth in response to temperature. Growth restriction at low temperature is mainly mediated by DELLA proteins, whose degradation is promoted by GA. For annual plants, it has been shown that the GA/DELLA pathway interacts with JA signaling and C-repeat binding factor (CBF dependent cold acclimation, but these interactions have not been explored in detail for perennials. Growth regulation in response to seasonal factors is, however, particularly important in perennials, especially at high latitudes. In autumn, growth cessation in trees is caused by shortening of the daylength in interaction with phytohormone signaling. In perennial grasses seasonal differences in the sensitivity to GA may enable enhanced growth in spring. This review provides an overview of the signaling interactions that determine plant growth at low temperature and highlights gaps in our knowledge, especially concerning the seasonality of signaling responses in perennial plants.

  15. Application of the Tor Vergata Scattering Model to L Band Backscatter During the Corn Growth Cycle

    Science.gov (United States)

    Joseph, A. T.; vanderVelde, R.; ONeill, P. E.; Lang, R.; Gish, T.

    2010-01-01

    At the USDA's Optimizing Production Inputs for Economic and Environmental Enhancement (OPE3) experimental site in Beltsville, Maryland, USA) a field campaign took place throughout the 2002 corn growth cycle from May 10th (emergence of corn crops) to October 2nd (harvest). One of the microwave instruments deployed was the multi-frequency (X-, C- and L-band) quad-polarized (HH, HV, VV, VH) NASA GSFC/George Washington University (GWU) truck mounted radar. During the field campaign, this radar system provided once a week fully polarized C- and L-band (4.75 and 1.6 GHz) backscatter measurements from incidence angle of 15, 35, and 55 degrees. In support of microwave observations, an extensive ground characterization took place, which included measurements of surface roughness, soil moisture, vegetation biomass and morphology. The field conditions during the campaign are characterized by several dry downs with a period of drought in the month of August. Peak biomass the corn canopies was reached on July 24th with a total biomass of approximately 6.5 kg/sq m. This dynamic range in both soil moisture and vegetation conditions within the data set is ideal for the validation of discrete medium vegetation scattering models. In this study, we compare the L band backscatter measurements with simulations by the Tor Vergata model (ferrazzoli and Guerriero 1996). The measured soil moisture, vegetation biomass and most reliably measured vegetation morphological parameters (e.g. number of leaves, number of stems and stem height) were used as input for the Tor Vergata model. The more uncertain model parameters (e.g. surface roughness, leaf thickness) and the stem diameter were optimized using a parameter estimation routine based on the Levenberg-Marquardt algorithm. As cost function for this optimization, the HH and VV polarized backscatter measured and stimulated by the TOR Vergata model for incidence angle of 15, 35, and 55 degrees were used (6 measurements in total). The calibrated

  16. L-Band H Polarized Microwave Emission During the Corn Growth Cycle

    Science.gov (United States)

    Joseph, A. T.; va der Velde, R.; O'Neill, P. E.; Kim, E.; Lang, R. H.; Gish, T.

    2012-01-01

    Hourly L-band (1.4 GHz) horizontally (H) polarized brightness temperatures (T(sub B))'s measured during five episodes (more than two days of continuous measurements) of the 2002 corn growth cycle are analyzed. These T(sub B)'s measurements were acquired as a part of a combined active/passive microwave field campaign, and were obtained at five incidence and three azimuth angles relative to the row direction. In support of this microwave data collection, intensive ground sampling took place once a week. Moreover, the interpretation of the hourly T(sub B)'s could also rely on the data obtained using the various automated instruments installed in the same field. In this paper, the soil moisture and temperature measured at fixed time intervals have been employed as input for the tau-omega model to reproduce the hourly T(sub B). Through the calibration of the vegetation and surface roughness parameterizations, the impact of the vegetation morphological changes on the microwave emission and the dependence of the soil surface roughness parameter, h(sub r), on soil moisture are investigated. This analysis demonstrates that the b parameter, appearing in the representation of the canopy opacity, has an angular dependence that varies throughout the growing period and also that the parameter hr increases as the soil dries in a portion of the dry-down cycle. The angular dependence of the b parameter imposes the largest uncertainty on T(sub B) simulations near senescence as the response of b to the incidence is also affected by the crop row orientation. On the other hand, the incorporation of a soil moisture dependent h(sub r) parameterization was responsible for the largest error reduction of T(sub B) simulations in the early growth cycle.

  17. Rapid growth, early maturation and short generation time in African annual fishes

    Czech Academy of Sciences Publication Activity Database

    Blažek, Radim; Polačik, Matej; Reichard, Martin

    2013-01-01

    Roč. 4, č. 24 (2013), s. 24 ISSN 2041-9139 R&D Projects: GA ČR(CZ) GAP506/11/0112 Institutional support: RVO:68081766 Keywords : extreme life history * annual fish * explosive growth * rapid maturation * generation time * killifish * diapause * vertebrate * reaction norm * Savanna Subject RIV: EG - Zoology Impact factor: 3.104, year: 2013 http://www.evodevojournal.com/content/4/1/24

  18. Precipitation variability inferred from the annual growth and isotopic composition of tropical trees

    Science.gov (United States)

    Ballantyne, A. P.; Baker, P. A.; Chambers, J. Q.; Villalba, R.

    2005-12-01

    Here we demonstrate that annual growth and isotopic ratios in tropical trees are responsive to seasonal and annual precipitation variability. We identify several regions of tropical South America characterized by significant relationships between oxygen isotopic ratios (δ 18O) in precipitation and precipitation amount (r = -0.82). Many of these regions are also sensitive to inter-annual variability in the South American Monsoon modulated by the El Niño Southern Oscillation (ENSO). The effectiveness of δ 18O and annual growth of tropical trees as a precipitation proxy is validated by high-resolution sampling of a Tachigali vermelho tree growing near Manaus, Brazil (3.1° S, 60.0° S). Growth in Tachigali spp. was highly correlated with both precipitation and cellulose δ 18O (r = 0.60) and precipitation amount was significantly correlated with δ 18O at a lag of approximately one month (r = 0.56). We also report a multi-proxy record spanning 180 years from Cedrela odorata growing in the Peruvian Amazon near Puerto Maldonado (12.6° S, 69.2° W) revealing a significant relationship between cellulose and monsoon precipitation over the region (r = -0.33). A 150-year record obtained from Polylepis tarapacana growing at Volcan Granada in Northern Argentina (22.0° S, 66.0° W) is also reported with a significant relationship between local monsoon precipitation and a regionally derived ring width index (r = 0.38). Although no significant relationship was revealed between cellulose δ 18O and precipitation in this taxa at this location, separate radii within the same tree revealed a significantly coherent δ 18O signal (r = 0.38). We compared our proxy chronologies with monsoon precipitation reanalysis data for tropical South America, which revealed key features of the South American Monsoon and their sensitivity to ENSO variability.

  19. Annual glyphosate treatments alter growth of unaffected bentgrass (Agrostis weeds and plant community composition.

    Directory of Open Access Journals (Sweden)

    Collin W Ahrens

    Full Text Available Herbicide resistance is becoming more common in weed ecotypes and crop species including turfgrasses, but current gaps in knowledge limit predictive ecological risk assessments and risk management plans. This project examined the effect of annual glyphosate applications on the vegetative growth and reproductive potential of two weedy bentgrasses, creeping bentgrass (CB and redtop (RT, where the glyphosate resistance (GR trait was mimicked by covering the bentgrass plants during glyphosate application. Five field plots were studied in habitats commonly inhabited by weedy bentgrasses including an agricultural hayfield, natural meadow, and wasteland. Results showed that annual glyphosate treatment improved bentgrass survivorship, vegetative growth, and reproductive potential compared with bentgrass in unsprayed subplots. In the second year of growth, RT plants had an 86-fold increase in flower number in glyphosate-treated subplots versus controls, while CB plants had a 20-fold increase. At the end of the three year study, plant community composition had changed in glyphosate-treated subplots in hayfield and meadow plots compared to controls. Soils in subplots receiving glyphosate had higher nitrate concentrations than controls. This is the first study to mimic the GR trait in bentgrass plants with the goal of quantifying bentgrass response to glyphosate selection pressure and understanding the impacts on surrounding plant communities.

  20. Plant allometry, leaf nitrogen and phosphorus stoichiometry, and interspecific trends in annual growth rates.

    Science.gov (United States)

    Niklas, Karl J

    2006-02-01

    Life forms as diverse as unicellular algae, zooplankton, vascular plants, and mammals appear to obey quarter-power scaling rules. Among the most famous of these rules is Kleiber's (i.e. basal metabolic rates scale as the three-quarters power of body mass), which has a botanical analogue (i.e. annual plant growth rates scale as the three-quarters power of total body mass). Numerous theories have tried to explain why these rules exist, but each has been heavily criticized either on conceptual or empirical grounds. N,P-STOICHIOMETRY: Recent models predicting growth rates on the basis of how total cell, tissue, or organism nitrogen and phosphorus are allocated, respectively, to protein and rRNA contents may provide the answer, particularly in light of the observation that annual plant growth rates scale linearly with respect to standing leaf mass and that total leaf mass scales isometrically with respect to nitrogen but as the three-quarters power of leaf phosphorus. For example, when these relationships are juxtaposed with other allometric trends, a simple N,P-stoichiometric model successfully predicts the relative growth rates of 131 diverse C3 and C4 species. The melding of allometric and N,P-stoichiometric theoretical insights provides a robust modelling approach that conceptually links the subcellular 'machinery' of protein/ribosomal metabolism to observed growth rates of uni- and multicellular organisms. Because the operation of this 'machinery' is basic to the biology of all life forms, its allometry may provide a mechanistic explanation for the apparent ubiquity of quarter-power scaling rules.

  1. Pluri-annual energy programming - The Energy transition for green growth. Synthesis

    International Nuclear Information System (INIS)

    2016-01-01

    The Energy Transition for Green Growth Act and its attendant action plans are designed to give France the means to make a more effective contribution to tackling climate change and reinforce its energy independence, while striking a better balance in its energy mix and creating jobs and business growth. This document summarizes the content of the Pluri-annual energy programming, which is the consistent action framework of the French energy transition: improving energy efficiency and reducing fossil fuels consumption, accelerating the development of renewable energy sources, maintaining a high-level of security of supply in the respect of environmental requirements, preparing tomorrow's energy system, developing clean mobility, taking account of the socio-economic issues of the energy transition and acting with the regions in this way

  2. Determining the annual periodicity of growth rings in seven tree species of a tropical moist forest in Santa Cruz, Bolivia

    Energy Technology Data Exchange (ETDEWEB)

    Lopez, L.; Villalba, R.; Pena-Claros, M.

    2012-07-01

    To determine the annual periodicity of growth rings in seven tree species from a tropical moist forest in Santa Cruz, Bolivia, a fire scar was used as a marker point to verify the annual nature of tree rings. The number of tree rings formed between the 1995 fire scar and the collection of the cross sections in 2002 was visually identified. The seven species showed annual growth rings. In most cases, boundaries between rings were marked by the presence of marginal parenchyma and wall-thick ed fibers formed at the end of the growing season. Growth lenses and false rings were recorded in some species. Tree rings can be carefully used in Santa Cruz forests to determine rates of growth. This information is crucial for defining forest management practices in tropical regions. (Author) 21 refs.

  3. Technetium-99 ({sup 99}Tc) in annual growth segments of knotted wrack (Ascophyllum nodosum)

    Energy Technology Data Exchange (ETDEWEB)

    Heldal, Hilde Elise, E-mail: Hilde.Heldal@imr.no [Institute of Marine Research (IMR), PO Box 1870 Nordnes, N-5817 Bergen (Norway); Sjotun, Kjersti, E-mail: Kjersti.Sjotun@bio.uib.no [University of Bergen (UoB), Department of Biology, PO Box 7803, N-5020 Bergen (Norway)

    2010-10-15

    The distribution of technetium-99 ({sup 99}Tc) in annual growth segments of the brown seaweed Ascophyllum nodosum (Fucales, Phaeophyceae) from the southwestern coast of Norway is examined in samples collected from January to November 2006. A twenty-fold increase in the {sup 99}Tc-concentration from the youngest to the oldest growth segments was found. The concentrations ranged from 42 to 98 Bq/kg dry weight (d.w.) and from 964 to 1000 Bq/kg d.w. in growth segments formed in 2006 and 1996, respectively. In addition, a seasonal variation in the {sup 99}Tc concentration was observed in the actively growing 2006-segments: concentrations decreased from 98 Bq/kg d.w. in April to 54 Bq/kg d.w. in June; there was a further reduction from June to August (42 Bq/kg d.w.); and, finally there was an increase from August to November (93 Bq/kg d.w.). In most of the segments formed between 2000 and 2005, there was a tendency of slightly decreasing {sup 99}Tc-concentrations between June and November but this pattern was not observed for the older growth segments. In order to find an explanation for the non-homogenous distribution of {sup 99}Tc within thalli of A. nodosum, different hypotheses are discussed. Uptake and elimination of {sup 99}Tc appears to be most pronounced in the actively growing segments. To date, such non-homogenous distribution of {sup 99}Tc within thalli of A. nodosum has not been taken into consideration, neither in connection with sample collection nor analysis. This paper shows that special protocols must be followed if A. nodosum is going to be used as a bioindicator for {sup 99}Tc in the marine environment. A sampling strategy is proposed.

  4. Nitrogen deposition outweighs climatic variability in driving annual growth rate of canopy beech trees: Evidence from long-term growth reconstruction across a geographic gradient.

    Science.gov (United States)

    Gentilesca, Tiziana; Rita, Angelo; Brunetti, Michele; Giammarchi, Francesco; Leonardi, Stefano; Magnani, Federico; van Noije, Twan; Tonon, Giustino; Borghetti, Marco

    2018-07-01

    In this study, we investigated the role of climatic variability and atmospheric nitrogen deposition in driving long-term tree growth in canopy beech trees along a geographic gradient in the montane belt of the Italian peninsula, from the Alps to the southern Apennines. We sampled dominant trees at different developmental stages (from young to mature tree cohorts, with tree ages spanning from 35 to 160 years) and used stem analysis to infer historic reconstruction of tree volume and dominant height. Annual growth volume (G V ) and height (G H ) variability were related to annual variability in model simulated atmospheric nitrogen deposition and site-specific climatic variables, (i.e. mean annual temperature, total annual precipitation, mean growing period temperature, total growing period precipitation, and standard precipitation evapotranspiration index) and atmospheric CO 2 concentration, including tree cambial age among growth predictors. Generalized additive models (GAM), linear mixed-effects models (LMM), and Bayesian regression models (BRM) were independently employed to assess explanatory variables. The main results from our study were as follows: (i) tree age was the main explanatory variable for long-term growth variability; (ii) GAM, LMM, and BRM results consistently indicated climatic variables and CO 2 effects on G V and G H were weak, therefore evidence of recent climatic variability influence on beech annual growth rates was limited in the montane belt of the Italian peninsula; (iii) instead, significant positive nitrogen deposition (N dep ) effects were repeatedly observed in G V and G H ; the positive effects of N dep on canopy height growth rates, which tended to level off at N dep values greater than approximately 1.0 g m -2  y -1 , were interpreted as positive impacts on forest stand above-ground net productivity at the selected study sites. © 2018 John Wiley & Sons Ltd.

  5. The last two centuries of lead pollution in the southern Gulf of Mexico recorded in the annual bands of the scleractinian coral Orbicella faveolata.

    Science.gov (United States)

    Horta-Puga, Guillermo; Carriquiry, José D

    2014-05-01

    Lead (Pb) pollution history (1855-2001 A.D.) of the southern Gulf of Mexico (SGM) was reconstructed from the geochemical record contained in the annual bands of the hermatypic coral Orbicella faveolata from the Veracruz Reef System, Mexico. Pb concentrations ranged from 5.5 μg/g in 1889-23.6 μg/g in 1992, with an average of 10.0 ± 4.1 μg/g. These high concentrations are evidence of a highly polluted environment. High statistical correlations were observed between the annual Pb coral time-series and both, the production of alkyl-lead gasoline in Mexico during the second half of the twentieth century (r = 0.86, p lead in North America for the 1900-1940 years period (r = 0.73, p < 0.001). Hence, this research provides evidence that these two processes generated Pb-rich aerosols that were atmospherically transported, increasing the environmental levels of Pb in the SGM.

  6. Founders Energy Ltd. 1998 annual report : fiscally prudent, value driven balanced growth strategy

    International Nuclear Information System (INIS)

    1999-01-01

    Founders Energy Ltd is a growth-oriented junior resource company engaged in the acquisition and development of oil and natural gas properties in Alberta, British Columbia and Saskatchewan. The annual review provides details of the company's operations and relevant financial performance during the 1998 fiscal year. In brief, the company realized significant increases in production and reserves, top quartile findings and development costs. It reported significant increases in leverage to natural gas through exploration success at Pouce Coupe and the acquisition of Opal Energy Inc.. It established new core areas in west-central Alberta, Peace River Arch and west-central Saskatchewan. It achieved a better balanced risk profile through geographical diversification and better balance to exploration and development. It increased undeveloped land area to 160,268 net acres and added 11.5 million barrels of established reserves at a finding cost of $ 6.28 per barrel. Financial highlights include increased gross revenue, increased net income per share, and increased shareholders' equity. tabs., figs

  7. The 1993 annual conference of the Israeli Association for Crystal Growth. Program and abstracts

    International Nuclear Information System (INIS)

    1993-11-01

    Papers presented in oral and poster sessions of one day conference, organized by Israeli Association for Crystal Growth, are compiled in this document. Main topics covered in this document can be classified as: (i) Fundamental and numerical analysis of crystal growth. (ii) Techniques of crystal growth and structural analysis. (iii) Thin film growth and characterization

  8. Band offsets and growth mode of molecular beam epitaxy grown MgO (111) on GaN (0002) by x-ray photoelectron spectroscopy

    Science.gov (United States)

    Craft, H. S.; Collazo, R.; Losego, M. D.; Mita, S.; Sitar, Z.; Maria, J.-P.

    2007-10-01

    MgO is a proposed dielectric for use as a tunneling barrier in devices integrating GaN and ferroelectric oxides. In this study, we present data regarding the growth mode and band offsets of MgO grown epitaxially on GaN (0002) surfaces using molecular beam epitaxy. Using in situ x-ray photoelectron spectroscopy (XPS) and molecular beam epitaxy, we determine, from sequential growth experiments, that the growth of MgO proceeds via the Volmer-Weber (three-dimensional) mode, and full coalescence of the film does not occur until approximately 12nm of MgO has been deposited. The observation of a three-dimensional growth mode is in agreement with previously published data. For the valence band offset, we find a value of 1.2±0.2eV, which corresponds to a 3.2eV conduction band offset. XPS measurements suggest a chemically abrupt interface and no effect on band lineup due to the slow coalescence behavior.

  9. Band offsets and growth mode of molecular beam epitaxy grown MgO (111) on GaN (0002) by x-ray photoelectron spectroscopy

    International Nuclear Information System (INIS)

    Craft, H. S.; Collazo, R.; Losego, M. D.; Mita, S.; Sitar, Z.; Maria, J.-P.

    2007-01-01

    MgO is a proposed dielectric for use as a tunneling barrier in devices integrating GaN and ferroelectric oxides. In this study, we present data regarding the growth mode and band offsets of MgO grown epitaxially on GaN (0002) surfaces using molecular beam epitaxy. Using in situ x-ray photoelectron spectroscopy (XPS) and molecular beam epitaxy, we determine, from sequential growth experiments, that the growth of MgO proceeds via the Volmer-Weber (three-dimensional) mode, and full coalescence of the film does not occur until approximately 12 nm of MgO has been deposited. The observation of a three-dimensional growth mode is in agreement with previously published data. For the valence band offset, we find a value of 1.2±0.2 eV, which corresponds to a 3.2 eV conduction band offset. XPS measurements suggest a chemically abrupt interface and no effect on band lineup due to the slow coalescence behavior

  10. Annual Enrollment Report: Growth in Number of Students Studying Journalism and Mass Communication Slows.

    Science.gov (United States)

    Becker, Lee B.; Vlad, Tudor; Huh, Jisu; Daniels, George L.

    2002-01-01

    Provides the key findings of the 2001 Annual Survey of Journalism and Mass Communication Enrollments. Shows that undergraduate enrollments continued to grow while graduate enrollments declined. Discusses degrees granted and race, ethnicity, and gender factors. (PM)

  11. Inter-annual changes in detritus-based food chains can enhance plant growth response to elevated atmospheric CO2.

    Science.gov (United States)

    Hines, Jes; Eisenhauer, Nico; Drake, Bert G

    2015-12-01

    Elevated atmospheric CO2 generally enhances plant growth, but the magnitude of the effects depend, in part, on nutrient availability and plant photosynthetic pathway. Due to their pivotal role in nutrient cycling, changes in abundance of detritivores could influence the effects of elevated atmospheric CO2 on essential ecosystem processes, such as decomposition and primary production. We conducted a field survey and a microcosm experiment to test the influence of changes in detritus-based food chains on litter mass loss and plant growth response to elevated atmospheric CO2 using two wetland plants: a C3 sedge (Scirpus olneyi) and a C4 grass (Spartina patens). Our field study revealed that organism's sensitivity to climate increased with trophic level resulting in strong inter-annual variation in detritus-based food chain length. Our microcosm experiment demonstrated that increased detritivore abundance could not only enhance decomposition rates, but also enhance plant growth of S. olneyi in elevated atmospheric CO2 conditions. In contrast, we found no evidence that changes in the detritus-based food chains influenced the growth of S. patens. Considered together, these results emphasize the importance of approaches that unite traditionally subdivided food web compartments and plant physiological processes to understand inter-annual variation in plant production response to elevated atmospheric CO2. © 2015 John Wiley & Sons Ltd.

  12. Annual Growth of Contract Costs for Major Programs in Development and Early Production

    Science.gov (United States)

    2016-03-21

    also affect cost growth behavior . Second, periods of structural changes contributed additional constant shifts in the growth. Two such overlapping...implementation of the Better Buying Power (BBP) initiatives to emphasize cost consciousness, improve efficiency, strengthen acquisition workforce...our modeling indicates that the defense system exhibits a self-correcting behavior that adjusts for prior differences between the actual growth and the

  13. The limited contribution of large trees to annual biomass production in an old-growth tropical forest.

    Science.gov (United States)

    Ligot, Gauthier; Gourlet-Fleury, Sylvie; Ouédraogo, Dakis-Yaoba; Morin, Xavier; Bauwens, Sébastien; Baya, Fidele; Brostaux, Yves; Doucet, Jean-Louis; Fayolle, Adeline

    2018-04-16

    Although the importance of large trees regarding biodiversity and carbon stock in old-growth forests is undeniable, their annual contribution to biomass production and carbon uptake remains poorly studied at the stand level. To clarify the role of large trees in biomass production, we used data of tree growth, mortality, and recruitment monitored during 20 yr in 10 4-ha plots in a species-rich tropical forest (Central African Republic). Using a random block design, three different silvicultural treatments, control, logged, and logged + thinned, were applied in the 10 plots. Annual biomass gains and losses were analyzed in relation to the relative biomass abundance of large trees and by tree size classes using a spatial bootstrap procedure. Although large trees had high individual growth rates and constituted a substantial amount of biomass, stand-level biomass production decreased with the abundance of large trees in all treatments and plots. The contribution of large trees to annual stand-level biomass production appeared limited in comparison to that of small trees. This pattern did not only originate from differences in abundance of small vs. large trees or differences in initial biomass stocks among tree size classes, but also from a reduced relative growth rate of large trees and a relatively constant mortality rate among tree size classes. In a context in which large trees are increasingly gaining attention as being a valuable and a key structural characteristic of natural forests, the present study brought key insights to better gauge the relatively limited role of large trees in annual stand-level biomass production. In terms of carbon uptake, these results suggest, as already demonstrated, a low net carbon uptake of old-growth forests in comparison to that of logged forests. Tropical forests that reach a successional stage with relatively high density of large trees progressively cease to be carbon sinks as large trees contribute sparsely or even

  14. Intra-annual dynamics of non-structural carbohydrates in the cambium of mature conifer trees reflects radial growth demands.

    Science.gov (United States)

    Simard, Sonia; Giovannelli, Alessio; Treydte, Kerstin; Traversi, Maria Laura; King, Gregory M; Frank, David; Fonti, Patrick

    2013-09-01

    The presence of soluble carbohydrates in the cambial zone, either from sugars recently produced during photosynthesis or from starch remobilized from storage organs, is necessary for radial tree growth. However, considerable uncertainties on carbohydrate dynamics and the consequences on tree productivity exist. This study aims to better understand the variation in different carbon pools at intra-annual resolution by quantifying how cambial zone sugar and starch concentrations fluctuate over the season and in relation to cambial phenology. A comparison between two physiologically different species growing at the same site, i.e., the evergreen Picea abies Karst. and the deciduous Larix decidua Mill., and between L. decidua from two contrasting elevations, is presented to identify mechanisms of growth limitation. Results indicate that the annual cycle of sugar concentration within the cambial zone is coupled to the process of wood formation. The highest sugar concentration is observed when the number of cells in secondary wall formation and lignification stages is at a maximum, subsequent to most radial growth. Starch disappears in winter, while other freeze-resistant non-structural carbohydrates (NSCs) increase. Slight differences in NSC concentration between species are consistent with the differing climate sensitivity of the evergreen and deciduous species investigated. The general absence of differences between elevations suggests that the cambial activity of trees growing at the treeline was not limited by the availability of carbohydrates at the cambial zone but instead by environmental controls on the growing season duration.

  15. Annuals sprouting adventitiously from the hypocotyl: their compensatory growth and implications for weed management

    Czech Academy of Sciences Publication Activity Database

    Latzel, Vít; Dospělová, L.; Klimešová, Jitka

    2009-01-01

    Roč. 64, č. 5 (2009), s. 923-929 ISSN 0006-3088 R&D Projects: GA ČR GD206/08/H044 Institutional research plan: CEZ:AV0Z60050516 Keywords : hypocotyle * regeneration * annuals Subject RIV: EF - Botanics Impact factor: 0.617, year: 2009

  16. Metal concentrations in the growth bands of Porites sp.: A baseline record on the history of marine pollution in the Gulf of Mannar, India.

    Science.gov (United States)

    Krishnakumar, S; Ramasamy, S; Magesh, N S; Chandrasekar, N; Simon Peter, T

    2015-12-15

    The present study was carried out on the Porites coral growth bands (1979 to 2014) to measure the metal accumulation for assessing the environmental pollution status. The concentrations of studied metals are compared with similar global studies, which indicate that the metals are probably derived from natural sources. The identical peaks of Fe and Mn are perfectly matched with Cu, Cr and Ni concentrations. However, the metal profile trend is slightly depressed from a regular trend in Zn, Cd and Pb peaks. The metal accumulation affinity of the reef skeleton is ranked in the following order Cr>Cd>Pb>Fe>Mn>Cu>Ni>Zn. The distribution of metal constituents in coral growth bands is primarily controlled by Fe and Mn in the reef skeleton. Other reef associated metals such as Pb and Cd are derived from other sources like coastal developments and anthropogenic sources. Copyright © 2015 Elsevier Ltd. All rights reserved.

  17. [Plant growth with limited water]. [Annual report, December 15, 1992--December 14, 1993

    Energy Technology Data Exchange (ETDEWEB)

    1993-12-01

    We used a soybean seedling system to explore the mechanism of growth limitation by water deficiency (low {Psi}{sub W}). Our prior work had show that (low {Psi}{sub W} inhibited plant growth initially because of a physical limitation to water uptake that appeared to result from a decrease in the {Psi}{sub W} gradient feeding water to the enlarging cells. The gradient was shown to originate from cell wall yielding and was altered primarily at the vascular tissue. In the present grant, we reported the detailed shape of the gradient. We also found that growth could mobilize water from mature tissues in the complete absence of external water using the gradient in {Psi}{sub W}. Growth was maintained by this mobilization. After growth has been inhibited a few hours, metabolic changes occur and a 28kD protein accumulates in the wall fraction of the growth-affected cells. In the present grant, we showed that the mRNA for the protein accumulated in a tissue-specific manner similar to that of the protein, and the accumulation was correlated with the growth response. Other investigators working independently with an acid phosphatase found a deduced amino acid sequence similar to that for the 28kD protein we had published. Biochemical tests showed that the 28kD protein and a related 3lkD protein expressed acid phosphatase activity. We found that the acid phosphatase Of the 28kD protein was in the cell walls of intact plants (in addition to being in the cytoplasm). Current work focuses on the role of this protein. Efforts were made to reverse the growth inhibition at low {Phi}{sub W} by treating growing tissues with low pH buffer, but the protons apparently failed to penetrate the cuticle.

  18. Phenology and growth in four annual species grown in ambient and elevated CO2

    Energy Technology Data Exchange (ETDEWEB)

    Reekie, E.G. (Acadia Univ., Wolfville, NS (Canada)); Bazzaz, F.A. (Harvard Univ., Cambridge, MA (USA))

    1991-01-01

    The objectives of this study were to test the hypothesis that changes in phenology with CO{sub 2} are a function of the effect of CO{sub 2} upon growth and to determine if CO{sub 2}-induced changes in phenology can influence competitive outcome. The effect of 350, 525, and 700{mu}l/l CO{sub 2} on Guara brachycarpa, Gailardia pulchella, Oenothera laciniata, and Lupinus texenis was examined. Plants were grown as individuals in 150-, 500-, or 1000-ml pots and in competition in 1000-ml pots. Growth and development were monitored at twice-weekly intervals by recording the number of leaves and noting the presence or absence of stem elongation, branching, flower buds, and open flowers. Elevated CO{sub 2} affected both growth and phenology, but the direction and magnitude of effects varied with species and soil volume. Elevated CO{sub 2} did not appear to affect development through its effect on growth. Those treatments in which there were significant effects of CO{sub 2} did not appear to affect development through its effect on growth. Those treatments in which there were significant effects of CO{sub 2} on growth were generally different from those treatments in which CO{sub 2} affected phenology. Rather than affecting phenology by changing plant size, CO{sub 2} appeared to affect phenology by modifying the size at which plants switched from one stage to the next. The level of CO{sub 2} changed competitive outcome; the importance of Lupinus increased whereas that of Oenothera decreased with increased CO{sub 2}. These changes were more closely related to the effect of CO{sub 2} on growth than its effect on phenology. 19 refs., 2 figs., 4 tabs.

  19. Effect of D2O on growth properties and chemical structure of annual ryegrass (Lolium multiflorum)

    Energy Technology Data Exchange (ETDEWEB)

    Evans, Barbara R [ORNL; Bali, Garima [Georgia Institute of Technology, Atlanta; Reeves, David T [ORNL; O' Neill, Hugh Michael [ORNL; Sun, Qining [Georgia Institute of Technology, Atlanta; Shah, Riddhi S [ORNL; Ragauskas, Arthur [Georgia Institute of Technology, Atlanta

    2014-01-01

    In present paper, we report the production and detailed structural analysis of deuterium-enriched rye grass (Lolium multiflorum) for neutron scattering experiments. An efficient method to produce deuterated biomass was developed by designing hydroponic perfusion chambers. In preliminary studies, the partial deuterated rye samples were grown in increasing levels of D2O to study the seed germination and the level of deuterium incorporation as a function of D2O concentration. Solution NMR method indicated 36.9 % deuterium incorporation in 50 % D2O grown annual rye samples and further significant increase in the deuterium incorporation level was observed by germinating the rye seedlings in H2O and growing in 50 % D2O inside the perfusion chambers. Moreover, in an effort to compare the substrate characteristics related to enzymatic hydrolysis on deuterated and protiated version of biomass, annual rye grown in 50 % D2O was selected for detailed biomass characterization studies. The compositional analyses, degree of polymerization and cellulose crystallinity were compared with its protiated control. The cellulose molecular weight indicated slight variation with deuteration; however, hemicellulose molecular weights and cellulose crystallinity remain unaffected with the deuteration. Besides the minor differences in biomass components, the development of deuterated biomass for neutron scattering application is essential to understand the complex biomass conversion processes.

  20. Highly plastic resource allocation to growth and reproduction in females of an African annual fish

    Czech Academy of Sciences Publication Activity Database

    Vrtílek, Milan; Reichard, Martin

    2015-01-01

    Roč. 24, č. 4 (2015), s. 616-628 ISSN 0906-6691 R&D Projects: GA ČR(CZ) GAP506/11/0112 Keywords : Nothobranchius * compensatory growth * egg size * life history * diet restriction Subject RIV: EG - Zoology Impact factor: 2.052, year: 2015

  1. Intra-annual variability in skeletal growth of the Devonian tabulate coral Scoliopora

    Czech Academy of Sciences Publication Activity Database

    Hladil, Jindřich

    2002-01-01

    Roč. 68, - (2002), s. 77-78 ISSN 0729-011X. [International Palaeontological Congress Australia /1./. 06.07.2002-10.07.2002, Sydney] R&D Projects: GA AV ČR IAA3013209 Keywords : sclerochronology * skeletal growth * ocean and marine basins Subject RIV: DB - Geology ; Mineralogy

  2. Carbon-14 activity of fallout in Araucaria angustifolia annual growth rings, from Arapoti, Parana State, Brazil

    International Nuclear Information System (INIS)

    Lisi, Claudio Sergio; Pessenda, Luiz Carlos Ruiz; Tomazello Filho, Mario

    2000-01-01

    During the period of nuclear tests between 1950 and 1960, an input of artificial 14 C (fallout effect) occurred in the natural reservoirs. 14 C determinations in the Northern Hemisphere showed values of Δ 14 C up to 960 in the year of 1964. To determine the fallout 14 C activity in Brazil, wood samples from Araucaria angustifolia (Bert.) O. Kuntze, Araucariaceae, were collected in Arapoti-PR (24 deg 11 S , 49 deg 58 O ). The annual tree rings were selected by dendrochronology. The cellulose was extracted and its 14 C activity determined by liquid scintillation method. The results showed a significant increase of the Δ 14 C up to 590 in 1965, about 60% higher than the natural activity, gradually decreasing after the end of nuclear tests. These results were correlated with those obtained in the Northen Hemisphere and will be used in the studies of CO 2 mechanisms distribuition to the atmosphere and other natural reservoirs. (author)

  3. The multi-annual Energy Plan - Executive summary. The energy transition for the green growth

    International Nuclear Information System (INIS)

    2017-07-01

    The multi-annual energy plan aims at completing the transition towards an energy system which is more efficient, less wasteful, more diverse and therefore more resilient. It reaffirms our commitment to reducing energy consumption, particularly energy from fossil fuels. The future of France's energy sector lies in striking a harmonious balance between different energy sources. These strategic decisions will help us to meet our objectives to keep greenhouse gas emissions to a minimum in line with our commitments to the EU and to the Paris Climate Agreement, to protect human health and the environment and to ensure access to energy at a reasonable cost whilst stimulating economic activity and employment in France

  4. Constraints to obtaining consistent annual yields in perennial tree crops. I: Heavy fruit load dominates over vegetative growth.

    Science.gov (United States)

    Smith, Harley M; Samach, Alon

    2013-06-01

    Farmers lack effective methods to achieve and maintain stable production from year to year in many commercial fruit crops. Annual fruit yield within a region often alternates between high and low fruit load and is termed alternate bearing. The underlying cause of alternate bearing is the negative impact of high fruit load on vegetative growth and next year's flowering. In this review, we emphasize common responses of diverse perennials to heavy crop load. We present botanical, ecological and horticultural perspectives on irregular bearing. The later part of this review focuses on understanding how high fruit load dominates over vegetative growth. We discuss sink strengths and putative mobile signals (hormones), perhaps seed-derived. We highlight gaps in current understanding of alternate bearing, and discuss new approaches to better understand fruit load dominance. Assuming the effect of high fruit load may be related to other mechanisms of sink partitioning, other forms of dominance are presented such as apical, first fruit and king fruit dominance. Dominance seems to be enforced, in independent cases through the establishment of a polar auxin transport system from the stronger sink. Once established this somehow perturbs the transport of auxin out of weaker sinks. Possibly, fruit derived auxin may alter the polar auxin transport system of the shoot to inhibit shoot growth. Copyright © 2013 Elsevier Ireland Ltd. All rights reserved.

  5. Effects of elevated CO2 concentration on growth, annual ring structure and photosynthesis in Larix kaempferi seedlings

    International Nuclear Information System (INIS)

    Yazaki, K.; Ishida, S.; Kawagishi, T.; Fukatsu, E.; Funada, R.; Maruyama, Y.; Kitao, M.; Tobita, H.; Koike, T.

    2004-01-01

    The effects of elevated carbon dioxide concentration and two nutrient regimes on stem growth rate, annual ring structure and temporal variations in photosynthetic characteristics of seedlings of Japanese larch were evaluated. When compared with ambient carbon dioxide, elevated carbon dioxide reduced stem height and increased stem basal diameter, but had no significant effect on ring width or the number of tracheids per radial file. No obvious difference was observed in cell wall thickness or the relative area of cell wall between seedlings grown in ambient or elevated carbon dioxide. Net assimilation rate increased in the presence of elevated carbon dioxide, however, the increase in whole-crown photosynthetic rate was minimal due to the smaller needle area and acclimation of the photosynthetic characteristics of the needles to the growth in carbon dioxide concentration. Conclusion: elevated carbon dioxide concentration did not appear to significantly affect the capacity of stems of Japanese larch seedlings for carbon fixation for use in cell wall synthesis, although there was evidence of change in the temporal pattern of stem growth and stem thickening. 52 refs., 3 tabs., 4 figs

  6. Relating annual increments of the endangered Blanding's turtle plastron growth to climate.

    Science.gov (United States)

    Richard, Monik G; Laroque, Colin P; Herman, Thomas B

    2014-05-01

    This research is the first published study to report a relationship between climate variables and plastron growth increments of turtles, in this case the endangered Nova Scotia Blanding's turtle (Emydoidea blandingii). We used techniques and software common to the discipline of dendrochronology to successfully cross-date our growth increment data series, to detrend and average our series of 80 immature Blanding's turtles into one common chronology, and to seek correlations between the chronology and environmental temperature and precipitation variables. Our cross-dated chronology had a series intercorrelation of 0.441 (above 99% confidence interval), an average mean sensitivity of 0.293, and an average unfiltered autocorrelation of 0.377. Our master chronology represented increments from 1975 to 2007 (33 years), with index values ranging from a low of 0.688 in 2006 to a high of 1.303 in 1977. Univariate climate response function analysis on mean monthly air temperature and precipitation values revealed a positive correlation with the previous year's May temperature and current year's August temperature; a negative correlation with the previous year's October temperature; and no significant correlation with precipitation. These techniques for determining growth increment response to environmental variables should be applicable to other turtle species and merit further exploration.

  7. Factors influencing the temporal growth rate of the high order TM{sub 0n} modes in the Ka-band overmoded Cherenkov oscillator

    Energy Technology Data Exchange (ETDEWEB)

    Wu, Dapeng, E-mail: vipbenjamin@163.com; Shu, Ting; Ju, Jinchuan [College of Photoelectric Science and Engineering, National University of Defense Technology, Changsha 410073 (China)

    2015-06-15

    When the wavelength of overmoded Cherenkov oscillator goes into Ka-band, power handling capacity becomes an essential issue. Using the TM{sub 02} mode or higher order TM{sub 0n} modes as the operating mode is a potential solution. This paper is aimed to find some proper parameters to make the temporal growth rate of the TM{sub 02} mode higher in our previously studied Gigawatt (GW)-class Ka band oscillator. An accurate and fast calculation method of the “hot” dispersion equation is derived for rectangular corrugated SWSs, which are widely used in the high frequency Cherenkov devices. Then, factors that affect the temporal growth rate of the high order TM{sub 0n} modes are analyzed, including the depth of corrugation, the radius of drift tube, and the diode voltage. Results show that, when parameters are chosen properly, the temporal growth rate of the TM{sub 02} mode can be as high as 0.3 ns{sup −1}.

  8. Optical band gap demarcation around 2.15 eV depending on preferred orientation growth in red HgI{sub 2} films

    Energy Technology Data Exchange (ETDEWEB)

    Tyagi, Pankaj, E-mail: pankajtyagicicdu@gmail.com

    2017-04-01

    Thermally evaporated stoichiometric films of red HgI{sub 2} show preferred orientation growth with either (102) or (002) orientation. The as grown films shows a change from one preferred orientation to another depending on their thickness, open-air heat-treatment and in-situ heat treatment of films. The in-situ heat-treatment of thermally evaporated stoichiometric films of red HgI{sub 2} with preferred growth of (102) orientation shows a gradual linear decrease in film thickness with in-situ heat-treatment temperature. On in-situ heat-treatment above 80 °C, it is found that HgI{sub 2} films become thinner than 900 nm, which are otherwise difficult to grow due to high vapor pressure of HgI{sub 2}. For these films the preferred orientation also changed from (102) to (002). The optical band gap (E{sub g}) also found to increase linearly with in-situ heat-treatment temperature. It is interesting to note that in-situ heat-treated films having (002) orientation had higher values of optical band gap than (102) orientation films. On combining these results with those of as grown and open-air heat-treated red HgI{sub 2} films reported in the literature, it is evident that there exists an optical band gap demarcation around 2.15 eV for red HgI{sub 2} thin films depending on their preferred orientation growth. Films with (102) orientation are found to have optical band gap less than 2.15 eV and those with (002) orientation are found to have optical band gap more than 2.15 eV. This is irrespective of the physical mean of obtaining the preferred orientation. The preferred orientation can be achieved by either physical means such as growing films with higher thickness, heat-treating them for short duration in open air or heat-treating them in-situ.

  9. The suitability of annual tree growth rings as environmental archives: Evidence from Sr, Nd, Pb and Ca isotopes in spruce growth rings from the Strengbach watershed

    Science.gov (United States)

    Stille, Peter; Schmitt, Anne-Désirée; Labolle, François; Pierret, Marie-Claire; Gangloff, Sophie; Cobert, Florian; Lucot, Eric; Guéguen, Florence; Brioschi, Laure; Steinmann, Marc; Chabaux, François

    2012-05-01

    The combination of the Sr, Nd and Pb isotope systems, recognized as tracers of sources, with the Ca isotope system, known to reveal biology-related fractionations, allowed us to test the reliability of spruce (Picea abies) growth rings as environmental archives through time (from 1916 to 1983) in a forest ecosystem affected by acid atmospheric deposition. Sr and Pb isotopes have already been applied in former tree-ring studies, whereas the suitability of Nd and Ca isotope systems is checked in the present article. Our Sr and Nd isotope data indicate an evolution in the cation origin with a geogenic origin for the oldest rings and an atmospheric origin for the youngest rings. Ca isotopes show, for their part, an isotopic homogeneity which could be linked to the very low weathering flux of Ca. Since this flux is weak the spruces' root systems have pumped the Ca mainly from the organic matter-rich top-soil over the past century. In contrast, the annual growth rings studied are not reliable and suitable archives of past Pb pollution.

  10. Modelling Growth and Partitioning of Annual Above-Ground Vegetative and Reproductive Biomass of Grapevine

    Science.gov (United States)

    Meggio, Franco; Vendrame, Nadia; Maniero, Giovanni; Pitacco, Andrea

    2014-05-01

    In the current climate change scenarios, both agriculture and forestry inherently may act as carbon sinks and consequently can play a key role in limiting global warming. An urgent need exists to understand which land uses and land resource types have the greatest potential to mitigate greenhouse gas (GHG) emissions contributing to global change. A common believe is that agricultural fields cannot be net carbon sinks due to many technical inputs and repeated disturbances of upper soil layers that all contribute to a substantial loss both of the old and newly-synthesized organic matter. Perennial tree crops (vineyards and orchards), however, can behave differently: they grow a permanent woody structure, stand undisturbed in the same field for decades, originate a woody pruning debris, and are often grass-covered. In this context, reliable methods for quantifying and modelling emissions and carbon sequestration are required. Carbon stock changes are calculated by multiplying the difference in oven dry weight of biomass increments and losses with the appropriate carbon fraction. These data are relatively scant, and more information is needed on vineyard management practices and how they impact vineyard C sequestration and GHG emissions in order to generate an accurate vineyard GHG footprint. During the last decades, research efforts have been made for estimating the vineyard carbon budget and its allocation pattern since it is crucial to better understand how grapevines control the distribution of acquired resources in response to variation in environmental growth conditions and agronomic practices. The objective of the present study was to model and compare the dynamics of current year's above-ground biomass among four grapevine varieties. Trials were carried out over three growing seasons in field conditions. The non-linear extra-sums-of-squares method demonstrated to be a feasible way of growth models comparison to statistically assess significant differences among

  11. Annual alteration in the growth and health-related physical fitness of the school children

    Directory of Open Access Journals (Sweden)

    Thiago Del Corona Lorenzi

    2005-12-01

    Full Text Available The follow-up of growth and physical fitness is important because it enables to verify health status during determined periods in a population. The aim of this study was to track the changes in growth and health-related physical fitness (HRPF of students during a year period and also to compare them with HRPF criteria. The sample consisted of 61 students of both sexes (31 boys and 30 girls measured in August 2001 and in August 2002 as well. Growth was evaluated by stature and body weight and HRPF by some tests of the battery proposed by PROESP-BR, having as reference the HRPF health zone of the Physical Best (AAHPERD, 1988 and Fitnessgram (COOPER INSTITUTE OF AEROBICS RESEARCH, 1987. Data were analyzed by descriptive statistics and Student’s t-test for paired samples. The results showed that students had high indexes for stature and body weight. Excepted for body composition, the students had low HRPF, presenting high prevalence of below health zone for the physical fitness components. RESUMO O monitoramento do crescimento e da aptidão física é importante por possibilitar que se verifique o estado de saúde ao longo de determinados períodos de uma dada população. O objetivo deste estudo foi verificar as alterações, após o período de um ano, no crescimento e na aptidão física relacionada à saúde de escolares dos dois sexos, e compará-las com critérios de saúde. O estudo teve como sujeitos 61 escolares dos dois sexos (31 meninos e 30 meninas selecionados de forma não aleatória voluntária, avaliados em agosto de 2001 e agosto de 2002. O crescimento físico dos escolares foi avaliado por meio da estatura e massa corporal, a aptidão física relacionada à saúde foi avaliada através de alguns dos testes da bateria proposta pelo PROESP-BR, tendo como referência os critérios de zona saudável de aptidão física do Physical Best (AAPHERD, 1988 e Fitnessgram (COOPER INSTITUTE FOR AEROBICS RESEARCH, 1987. A análise dos dados

  12. The 19th KAIF/KNS annual conference growth of nuclear industry and its current issues

    International Nuclear Information System (INIS)

    Juhn, Poong Eil

    2004-01-01

    After the president Eisenhower's 'Atoms for Peace' speech at the UN general Conference in December 1953, nuclear industry for peaceful uses of nuclear energy has been developed steadily worldwide through international co-operation and collaboration during last half a century. However, from late 1980s, in particular, after Chernobyl nuclear accident in 1986 and growing public opposition on nuclear waste management and disposal, the growth of nuclear power plants worldwide, except some Asian countries, has been slowed down. Nuclear power currently supplies about 16 % of the world's electricity. In the next 50 years, it is expected that the world energy demand will increase about two times comparing current level while electricity demand will be tripled. Therefore, the nuclear industry should be expanded significantly in the next 50 years to meet the role for 'Prosperity beyond Peace'. The main issues for nuclear industry to take this important role are to increase in economics of nuclear power, and to resolve nuclear waste management and disposal. Some of these issues have been resolved mainly through international co-operation. For example, there are significant efforts to improve economics of nuclear power. This paper reviews worldwide efforts to resolve these issues and mentions what are the remaining ones

  13. Esso Imperial Oil annual report to shareholders 2002 : positioned for growth

    International Nuclear Information System (INIS)

    2003-01-01

    Financial information from Esso Imperial Oil, one of Canada's largest producers of crude oil and natural gas, was presented and a review of their 2002 operations was made available for the benefit of shareholders. Some of the highlights of 2002 are: the total return on Imperial shares including capital appreciation and dividends was 3 per cent, compared with a net loss of 12 per cent for the Standard and Poors/TSX composite index; in the past decade, the total return on Imperial's shares have averaged 17 per cent a year, compounded; regular dividend payments increased to 84 cents a share, the eighth consecutive year of dividend growth; and, the company has purchased more than 200 million shares for $5.2 billion since 1995, reducing the number outstanding by 35 per cent. Progress in key priority areas for 2002 included a second-best year for safety performance, a successful $1.6 billion capital investment program, the expansion of the Cold Lake oil sands project, an increase of 15 per cent in polyethylene production, an increase of 3.5 per cent in retail sales of Esso gasoline, and advancement of the Mackenzie gas project. Other achievements included the development of a 170 megawatt cogeneration plant at Cold Lake that will reduce costs and greenhouse gas emissions. A 95 megawatt unit was also constructed at the Sarnia manufacturing facility. This report summarized the company's energy resource activities and presented an operations review as well as consolidated financial statements, and common share information including the accounts of Imperial Oil Inc. and its subsidiaries and the company's proportionate share of the assets, liabilities, revenues, expenses and cash flows of joint ventures. Revenue and expenditure statements were summarized by source. tabs., figs

  14. Annual report to the Working Group on Technology, Growth, and Employment

    International Nuclear Information System (INIS)

    1985-04-01

    A meeting of the Working Group on High Energy Physics was convened in Brussels, Belgium, in July 1984, and impaneled new groups of technical experts to report on long-term planning, technical collaborations, and the identification of administrative obstacles experienced within the Summit countries that impede international collaboration. The charges to these three new groups are contained in this report under the section on the Brussels meeting. The reports prepared by the technical experts were then reviewed at the January 1985 meeting at Cadarache, France, and the results are contained in this report under the section on the Cadarache meeting. The Summit Working Group on High Energy Physics believes progress is being made toward cooperation among the Summit countries in the exploration of scientific and technological development upon which the Summit Heads of State and Government declared at Versailles revitalization and growth of the world economy will depend - to a large extent. At Cadarache, the Group found that, since its establishment, international collaboration has increased in the use of present accelerators and in the planning for future accelerators. The Group also found that there are specific areas of technology in which near-term research cooperation is possible. Finally, the Group identified administrative regulations that hamper effective international collaboration in science and technology and that could be revised or eliminated through coordinated, high level Summit action. The major accomplishment of the Working Group thus far has been the creation of a forum for discussions on collaboration in a major field of science by seven industrialized countries. The Group recommends the continuation of its review of long-term plans for major facilities on an intergovernmental basis

  15. Variation of Maximum Tree Height and Annual Shoot Growth of Smith Fir at Various Elevations in the Sygera Mountains, Southeastern Tibetan Plateau

    Science.gov (United States)

    Wang, Yafeng; Čufar, Katarina; Eckstein, Dieter; Liang, Eryuan

    2012-01-01

    Little is known about tree height and height growth (as annual shoot elongation of the apical part of vertical stems) of coniferous trees growing at various altitudes on the Tibetan Plateau, which provides a high-elevation natural platform for assessing tree growth performance in relation to future climate change. We here investigated the variation of maximum tree height and annual height increment of Smith fir (Abies georgei var. smithii) in seven forest plots (30 m×40 m) along two altitudinal transects between 3,800 m and 4,200/4,390 m above sea level (a.s.l.) in the Sygera Mountains, southeastern Tibetan Plateau. Four plots were located on north-facing slopes and three plots on southeast-facing slopes. At each site, annual shoot growth was obtained by measuring the distance between successive terminal bud scars along the main stem of 25 trees that were between 2 and 4 m high. Maximum/mean tree height and mean annual height increment of Smith fir decreased with increasing altitude up to the tree line, indicative of a stress gradient (the dominant temperature gradient) along the altitudinal transect. Above-average mean minimum summer (particularly July) temperatures affected height increment positively, whereas precipitation had no significant effect on shoot growth. The time series of annual height increments of Smith fir can be used for the reconstruction of past climate on the southeastern Tibetan Plateau. In addition, it can be expected that the rising summer temperatures observed in the recent past and anticipated for the future will enhance Smith fir's growth throughout its altitudinal distribution range. PMID:22396738

  16. Adsorption-controlled growth of BiFeO3 by MBE and integration with wide band gap semiconductors.

    Science.gov (United States)

    Ihlefeld, Jon F; Tian, Wei; Liu, Zi-Kui; Doolittle, W Alan; Bernhagen, Margitta; Reiche, Peter; Uecker, Reinhard; Ramesh, Ramamoorthy; Schlom, Darrell G

    2009-08-01

    BiFeO3 thin films have been deposited on (001) SrTiO3, (101) DyScO3, (011) DyScO3, (0001) AlGaN/GaN, and (0001) 6H-SiC single crystal substrates by reactive molecular beam epitaxy in an adsorption-controlled growth regime. This is achieved by supplying a bismuth over-pressure and utilizing the differential vapor pressures between bismuth oxides and BiFeO3 to control stoichiometry in accordance with thermodynamic calculations. Four-circle x-ray diffraction and transmission electron microscopy reveal phase-pure, epitaxial films with rocking curve full width at half maximum values as narrow as 7.2 arc seconds (0.002 degrees). Epitaxial growth of (0001)-oriented BiFeO3 thin films on (0001) GaN, including AlGaN HEMT structures, and (0001) SiC has been realized using intervening epitaxial (111) SrTiO3 / (100) TiO2 buffer layers. The epitaxial BiFeO3 thin films have 2 in-plane orientations: [1120] BiFeO3 || [1120] GaN (SiC) plus a twin variant related by a 180 degrees in-plane rotation. This epitaxial integration of the ferroelectric with the highest known polarization, BiFeO3, with high bandgap semiconductors is an important step toward novel field-effect devices.

  17. Water-use efficiency and relative growth rate mediate competitive interactions in Sonoran Desert winter annual plants.

    Science.gov (United States)

    Gremer, Jennifer R; Kimball, Sarah; Keck, Katie R; Huxman, Travis E; Angert, Amy L; Venable, D Lawrence

    2013-10-01

    A functional approach to investigating competitive interactions can provide a mechanistic understanding of processes driving population dynamics, community assembly, and the maintenance of biodiversity. In Sonoran Desert annual plants, a trade-off between relative growth rate (RGR) and water-use efficiency (WUE) contributes to species differences in population dynamics that promote long-term coexistence. Traits underlying this trade-off explain variation in demographic responses to precipitation as well as life history and phenological patterns. Here, we ask how these traits mediate competitive interactions. • We conducted competition trials for three species occupying different positions along the RGR-WUE trade-off axis and compared the effects of competition at high and low soil moisture. We compared competitive effect (ability to suppress neighbors) and competitive response (ability to withstand competition from neighbors) among species. • The RGR-WUE trade-off predicted shifts in competitive responses at different soil moistures. The high-RGR species was more resistant to competition in high water conditions, while the opposite was true for the high-WUE species. The intermediate RGR species tended to have the strongest impact on all neighbors, so competitive effects did not scale directly with differences in RGR and WUE among competitors. • Our results reveal mechanisms underlying long-term variation in fitness: high-RGR species perform better in years with large, frequent rain events and can better withstand competition under wetter conditions. The opposite is true for high-WUE species. Such resource-dependent responses strongly influence community dynamics and can promote coexistence in variable environments.

  18. A Wireless Sensor Network for Growth Environment Measurement and Multi-Band Optical Sensing to Diagnose Tree Vigor.

    Science.gov (United States)

    Kameoka, Shinichi; Isoda, Shuhei; Hashimoto, Atsushi; Ito, Ryoei; Miyamoto, Satoru; Wada, Genki; Watanabe, Naoki; Yamakami, Takashi; Suzuki, Ken; Kameoka, Takaharu

    2017-04-27

    We have tried to develop the guidance system for farmers to cultivate using various phenological indices. As the sensing part of this system, we deployed a new Wireless Sensor Network (WSN). This system uses the 920 MHz radio wave based on the Wireless Smart Utility Network that enables long-range wireless communication. In addition, the data acquired by the WSN were standardized for the advanced web service interoperability. By using these standardized data, we can create a web service that offers various kinds of phenological indices as secondary information to the farmers in the field. We have also established the field management system using thermal image, fluorescent and X-ray fluorescent methods, which enable the nondestructive, chemical-free, simple, and rapid measurement of fruits or trees. We can get the information about the transpiration of plants through a thermal image. The fluorescence sensor gives us information, such as nitrate balance index (NBI), that shows the nitrate balance inside the leaf, chlorophyll content, flavonol content and anthocyanin content. These methods allow one to quickly check the health of trees and find ways to improve the tree vigor of weak ones. Furthermore, the fluorescent x-ray sensor has the possibility to quantify the loss of minerals necessary for fruit growth.

  19. A Wireless Sensor Network for Growth Environment Measurement and Multi-Band Optical Sensing to Diagnose Tree Vigor

    Directory of Open Access Journals (Sweden)

    Shinichi Kameoka

    2017-04-01

    Full Text Available We have tried to develop the guidance system for farmers to cultivate using various phenological indices. As the sensing part of this system, we deployed a new Wireless Sensor Network (WSN. This system uses the 920 MHz radio wave based on the Wireless Smart Utility Network that enables long-range wireless communication. In addition, the data acquired by the WSN were standardized for the advanced web service interoperability. By using these standardized data, we can create a web service that offers various kinds of phenological indices as secondary information to the farmers in the field. We have also established the field management system using thermal image, fluorescent and X-ray fluorescent methods, which enable the nondestructive, chemical-free, simple, and rapid measurement of fruits or trees. We can get the information about the transpiration of plants through a thermal image. The fluorescence sensor gives us information, such as nitrate balance index (NBI, that shows the nitrate balance inside the leaf, chlorophyll content, flavonol content and anthocyanin content. These methods allow one to quickly check the health of trees and find ways to improve the tree vigor of weak ones. Furthermore, the fluorescent x-ray sensor has the possibility to quantify the loss of minerals necessary for fruit growth.

  20. Origin of the near-band-edge photoluminescence in ZnO nanorods realised by vapour phase epitaxy and aqueous chemical growth

    Energy Technology Data Exchange (ETDEWEB)

    Bekeny, C.; Hilker, B.; Wischmeier, L.; Voss, T. [IFP, University of Bremen, P.O Box 330440, 28334 Bremen (Germany); Postels, B.; Mofor, A.; Bakin, Andrey; Waag, A. [IHT, TU Braunschweig, P.O Box 3329, 38023 Braunschweig (Germany)

    2007-07-01

    Well established high temperature growth techniques like the vapourliquid-solid (VLS: 1100 C) and vapour-phase-epitaxy (VPE: 800 C) have been successfully optimized while the low-temperature aqueous chemical growth (ACG: 90 C) is being extended to yield large-scale high quality ZnO nanorods. Here, a detailed and systematic photoluminescence (PL) study is presented to understand the microscopic processes responsible for the near-band-edge (NBE) emission in nanorods obtained from these processes. For the ACG samples, the as-grown nanorods show relatively broad NBE emission (15 meV) attributed to the presence of large donor densities. After annealing in various atmospheres at {proportional_to}800 C, a significant reduction of the linewidth ({proportional_to}4 meV) and even the appearance of relatively sharp excitonic transitions is explained by the drastic reduction of the donor density. In contrast, the as-grown VPE and VLS samples exhibit well-resolved and sharp peaks resulting from exciton-related transitions. There is a shift in the room-temperature PL peak for VLS and VPE samples and is shown to result from contributions of the free exciton peak, its first and second order phonon replicas and not due to quantum confinement and or laser heating as assumed in literature.

  1. The Annual Allowed Revenue growth of basic transmission grid face the expansion of transmission system; O crescimento da receita anual permitida da rede basica face a expansao do sistema de transmissao

    Energy Technology Data Exchange (ETDEWEB)

    Vieira, Isabela Sales; Camargo, Ivan Marques de Toledo [Universidade de Brasilia (UnB), DF (Brazil)

    2008-07-01

    Since the separation between the purchase and sale of electric energy and contracts for access and use of transmission systems, in 1999, when the first Annual Allowed Revenue of the transmission concessionaires was established, to the last Annual Revenue readjustment, in 2007, the revenue of the basic transmission grid more than quadruplicated. The growth of the Allowed Annual Revenue of the main transmission grid has raised questions about the excessive growth of the transmission system. However, despite the significant evolution of the basic transmission grid in the last years, it can be observed that since 2003 the growth curve of the Annual Allowed Revenue moved away from the transmission system growth curve. Between years 2000 and 2007, while the transmission system grew in average 4% per year, the average tax of growth of the Allowed Annual Revenue was superior 20% per year. Two facts contributed for this behavior - the great growth of IGP-M index, mainly between years 2002 and 2003, and the great difference between the Annual Allowed Revenue for the transmission installations existing in 1999 and the Maximum Annual Revenue for the new transmission installations, connected to the transmission grid since then. (author)

  2. Sensitivity of growth and biomass allocation patterns to increasing nitrogen: a comparison between ephemerals and annuals in the Gurbantunggut Desert, north-western China.

    Science.gov (United States)

    Zhou, Xiaobing; Zhang, Yuanming; Niklas, Karl J

    2014-02-01

    Biomass accumulation and allocation patterns are critical to quantifying ecosystem dynamics. However, these patterns differ among species, and they can change in response to nutrient availability even among genetically related individuals. In order to understand this complexity further, this study examined three ephemeral species (with very short vegetative growth periods) and three annual species (with significantly longer vegetative growth periods) in the Gurbantunggut Desert, north-western China, to determine their responses to different nitrogen (N) supplements under natural conditions. Nitrogen was added to the soil at rates of 0, 0.5, 1.0, 3.0, 6.0 and 24.0 g N m(-2) year(-1). Plants were sampled at various intervals to measure relative growth rate and shoot and root dry mass. Compared with annuals, ephemerals grew more rapidly, increased shoot and root biomass with increasing N application rates and significantly decreased root/shoot ratios. Nevertheless, changes in the biomass allocation of some species (i.e. Erodium oxyrrhynchum) in response to the N treatment were largely a consequence of changes in overall plant size, which was inconsistent with an optimal partitioning model. An isometric log shoot vs. log root scaling relationship for the final biomass harvest was observed for each species and all annuals, while pooled data of three ephemerals showed an allometric scaling relationship. These results indicate that ephemerals and annuals differ observably in their biomass allocation patterns in response to soil N supplements, although an isometric log shoot vs. log root scaling relationship was maintained across all species. These findings highlight that different life history strategies behave differently in response to N application even when interspecific scaling relationships remain nearly isometric.

  3. Effect of inter-annual variability in pasture growth and irrigation response on farm productivity and profitability based on biophysical and farm systems modelling.

    Science.gov (United States)

    Vogeler, Iris; Mackay, Alec; Vibart, Ronaldo; Rendel, John; Beautrais, Josef; Dennis, Samuel

    2016-09-15

    Farm system and nutrient budget models are increasingly being used in analysis to inform on farm decision making and evaluate land use policy options at regional scales. These analyses are generally based on the use of average annual pasture yields. In New Zealand (NZ), like in many countries, there is considerable inter-annual variation in pasture growth rates, due to climate. In this study a modelling approach was used to (i) include inter-annual variability as an integral part of the analysis and (ii) test the approach in an economic analysis of irrigation in a case study within the Hawkes Bay Region of New Zealand. The Agricultural Production Systems Simulator (APSIM) was used to generate pasture dry matter yields (DMY) for 20 different years and under both dryland and irrigation. The generated DMY were linked to outputs from farm-scale modelling for both Sheep and Beef Systems (Farmaxx Pro) and Dairy Systems (Farmax® Dairy Pro) to calculate farm production over 20 different years. Variation in DMY and associated livestock production due to inter-annual variation in climate was large, with a coefficient of variations up to 20%. Irrigation decreased this inter-annual variation. On average irrigation, with unlimited available water, increased income by $831 to 1195/ha, but when irrigation was limited to 250mm/ha/year income only increased by $525 to 883/ha. Using pasture responses in individual years to capturing the inter-annual variation, rather than the pasture response averaged over 20years resulted in lower financial benefits. In the case study income from irrigation based on an average year were 10 to >20% higher compared with those obtained from individual years. Copyright © 2016 Elsevier B.V. All rights reserved.

  4. Intra-Annual Xylem Growth of Larix principis-rupprechtii at Its Upper and Lower Distribution Limits on the Luyashan Mountain in North-Central China

    Directory of Open Access Journals (Sweden)

    Yuan Jiang

    2015-10-01

    Full Text Available Altitude-related climatic factors, especially temperature, are important factors that affect tree growth in mountain forest ecosystems. The aims of this study were to estimate the intra-annual radial growth differences of Larix principis-rupprechtii (L. principis-rupprechtii between its upper and lower distribution limits, at 2740 and 2040 m a.s.l, respectively. Dynamics of xylem growth were observed by collecting microcore samples weekly during the 2011 growth season. The result indicated that different strategies were adopted at the two selected sites. Trees at the upper distribution limit adopted an “intensive strategy” with higher maximum growth rates (0.69 cell·day−1 within a shorter duration of 95 days, producing 21 new tracheids. By contrast, trees at the lower distribution limit exhibited an “extensive strategy” with lower maximum growth rates (0.53 cell·day−1 over a longer duration of 135 days, producing 50 tracheids. The soil temperature was probably the main factor limiting the onset of cambial activity for L. principis-rupprechtii, its daily mean thresholds for onset were 0 °C and 1.4 °C at the upper and lower distribution limits, respectively. These results indicate that L. principis-rupprechtii is able to adjust its xylem growth according to environmental conditions.

  5. Dissepiments, density bands and signatures of thermal stress in Porites skeletons

    Science.gov (United States)

    DeCarlo, Thomas M.; Cohen, Anne L.

    2017-09-01

    The skeletons of many reef-building corals are accreted with rhythmic structural patterns that serve as valuable sclerochronometers. Annual high- and low-density band couplets, visible in X-radiographs or computed tomography scans, are used to construct age models for paleoclimate reconstructions and to track variability in coral growth over time. In some corals, discrete, anomalously high-density bands, called "stress bands," preserve information about coral bleaching. However, the mechanisms underlying the formation of coral skeletal density banding remain unclear. Dissepiments—thin, horizontal sheets of calcium carbonate accreted by the coral to support the living polyp—play a key role in the upward growth of the colony. Here, we first conducted a vital staining experiment to test whether dissepiments were accreted with lunar periodicity in Porites coral skeleton, as previously hypothesized. Over 6, 15, and 21 months, dissepiments consistently formed in a 1:1 ratio to the number of full moons elapsed over each study period. We measured dissepiment spacing to reconstruct multiple years of monthly skeletal extension rates in two Porites colonies from Palmyra Atoll and in another from Palau that bleached in 1998 under anomalously high sea temperatures. Spacing between successive dissepiments exhibited strong seasonality in corals containing annual density bands, with narrow (wide) spacing associated with high (low) density, respectively. A high-density "stress band" accreted during the 1998 bleaching event was associated with anomalously low dissepiment spacing and missed dissepiments, implying that thermal stress disrupts skeletal extension. Further, uranium/calcium ratios increased within stress bands, indicating a reduction in the carbonate ion concentration of the coral's calcifying fluid under stress. Our study verifies the lunar periodicity of dissepiments, provides a mechanistic basis for the formation of annual density bands in Porites, and reveals the

  6. Seasonal and inter-annual dynamics of growth, non-structural carbohydrates and C stable isotopes in a Mediterranean beech forest.

    Science.gov (United States)

    Scartazza, Andrea; Moscatello, Stefano; Matteucci, Giorgio; Battistelli, Alberto; Brugnoli, Enrico

    2013-07-01

    Seasonal and inter-annual dynamics of growth, non-structural carbohydrates (NSC) and carbon isotope composition (δ(13)C) of NSC were studied in a beech forest of Central Italy over a 2-year period characterized by different environmental conditions. The net C assimilated by forest trees was mainly used to sustain growth early in the season and to accumulate storage carbohydrates in trunk and root wood in the later part of the season, before leaf shedding. Growth and NSC concentration dynamics were only slightly affected by the reduced soil water content (SWC) during the drier year. Conversely, the carbon isotope analysis on NSC revealed seasonal and inter-annual variations of photosynthetic and post-carboxylation fractionation processes, with a significant increase in δ(13)C of wood and leaf soluble sugars in the drier summer year than in the wetter one. The highly significant correlation between δ(13)C of leaf soluble sugars and SWC suggests a decrease of the canopy C isotope discrimination and, hence, an increased water-use efficiency with decreasing soil water availability. This may be a relevant trait for maintaining an acceptable plant water status and a relatively high C sink capacity during dry seasonal periods. Our results suggest a short- to medium-term homeostatic response of the Collelongo beech stand to variations in water availability and solar radiation, indicating that this Mediterranean forest was able to adjust carbon-water balance in order to prevent C depletion and to sustain plant growth and reserve accumulation during relatively dry seasons.

  7. Influence of lake surface area and total phosphorus on annual bluegill growth in small impoundments of central Georgia

    Science.gov (United States)

    Jennings, Cecil A.; Sundmark, Aaron P.

    2017-01-01

    The relationships between environmental variables and the growth rates of fishes are important and rapidly expanding topics in fisheries ecology. We used an informationtheoretic approach to evaluate the influence of lake surface area and total phosphorus on the age-specific growth rates of Lepomis macrochirus (Bluegill) in 6 small impoundments in central Georgia. We used model averaging to create composite models and determine the relative importance of the variables within each model. Results indicated that surface area was the most important factor in the models predicting growth of Bluegills aged 1–4 years; total phosphorus was also an important predictor for the same age-classes. These results suggest that managers can use water quality and lake morphometry variables to create predictive models specific to their waterbody or region to help develop lake-specific management plans that select for and optimize local-level habitat factors for enhancing Bluegill growth.

  8. Growth

    Science.gov (United States)

    John R. Jones; George A. Schier

    1985-01-01

    This chapter considers aspen growth as a process, and discusses some characteristics of the growth and development of trees and stands. For the most part, factors affecting growth are discussed elsewhere, particularly in the GENETICS AND VARIATION chapter and in chapters in PART 11. ECOLOGY. Aspen growth as it relates to wood production is examined in the WOOD RESOURCE...

  9. Multi-annual energy plan. Part relating to the Ponant islands. The Energy transition for green growth

    International Nuclear Information System (INIS)

    2016-01-01

    The multi-annual energy plan aims at completing the transition towards an energy system which is more efficient, less wasteful, more diverse and therefore more resilient. It reaffirms France's commitment to reducing energy consumption, particularly energy from fossil fuels. The future of France's energy sector lies in striking a harmonious balance between different energy sources. These strategic decisions will help to meet France's objectives to keep greenhouse gas emissions to a minimum in line with its commitments to the EU and to the Paris Climate Agreement, to protect human health and the environment and to ensure access to energy at a reasonable cost whilst stimulating economic activity and employment. This document is the multi-annual energy plan for the inhabited and non-interconnected Ponant Islands (Ouessant, Molene, Sein). It establishes the priority actions for all energy sources with respect to demand control, supply diversification, supply security, supply and demand management, renewal of production means. It covers a first 3-years period (2016-2018) followed by a second 5-years period (2019-2023)

  10. The Effect of Doctoral Students' Background, Involvement, and Perception of Growth on Their Intention To Persist. ASHE Annual Meeting Paper.

    Science.gov (United States)

    Faghihi, Foroozandeh; Ethington, Corinna A.

    This study examined the extent to which an individual doctoral student's characteristics and involvement in the academic and social life of the department influences the student's perception of growth and development during graduate school, and thus the student's persistence in pursuing a graduate degree. The study surveyed doctoral students…

  11. Inter-annual variability in apparent relative production, survival, and growth of juvenile Lost River and shortnose suckers in Upper Klamath Lake, Oregon, 2001–15

    Science.gov (United States)

    Burdick, Summer M.; Martin, Barbara A.

    2017-06-15

    Executive SummaryPopulations of the once abundant Lost River (Deltistes luxatus) and shortnose suckers (Chasmistes brevirostris) of the Upper Klamath Basin, decreased so substantially throughout the 20th century that they were listed under the Endangered Species Act in 1988. Major landscape alterations, deterioration of water quality, and competition with and predation by exotic species are listed as primary causes of the decreases in populations. Upper Klamath Lake populations are decreasing because fish lost due to adult mortality, which is relatively low for adult Lost River suckers and variable for adult shortnose suckers, are not replaced by new young adult suckers recruiting into known adult spawning aggregations. Catch-at-age and size data indicate that most adult suckers presently in Upper Klamath Lake spawning populations were hatched around 1991. While, a lack of egg production and emigration of young fish (especially larvae) may contribute, catch-at-length and age data indicate high mortality during the first summer or winter of life may be the primary limitation to the recruitment of young adults. The causes of juvenile sucker mortality are unknown.We compiled and analyzed catch, length, age, and species data on juvenile suckers from Upper Klamath Lake from eight prior studies conducted from 2001 to 2015 to examine annual variation in apparent production, survival, and growth of young suckers. We used a combination of qualitative assessments, general linear models, and linear regression to make inferences about annual differences in juvenile sucker dynamics. The intent of this exercise is to provide information that can be compared to annual variability in environmental conditions with the hopes of understanding what drives juvenile sucker population dynamics.Age-0 Lost River suckers generally grew faster than age-0 shortnose suckers, but the difference in growth rates between the two species varied among years. This unsynchronized annual variation in

  12. Effects of CO2 and temperature on growth and resource use of co-occurring C3 and C4 annuals

    International Nuclear Information System (INIS)

    Coleman, J.S.; Bazzaz, F.A.

    1992-01-01

    The authors examined how CO 2 concentrations and temperature interacted to affect growth, resource acquisition, and resource allocation of two annual plants that were supplied with a single pulse of nutrients. Physiological and growth measurements were made on individuals of Abutilon throphrasti (C 3 ) and Amaranthus retroflexus (C 4 ) grown in environments with atmospheric CO 2 levels of 400 or 700 μL/L and with light/dark temperatures of 28 degree/22 degree or 38 degree/31 degree C. Elevated CO 2 and temperature treatments had significant independent and interactive effects on plant growth, resource allocation, and resource acquisition, and the strength and direction of these effects were often dependent on plant species. For example, final biomass of Amaranthus was enhanced by elevated CO 2 at 28 degree but was depressed at 38 degree. For Abutilon, elevated CO 2 increased initial plant relative growth rates at 28 degree but not at 38 degree, and had no significant effects on final biomass at either temperature. These results are interpreted in light of the interactive effects of CO 2 and temperature on the rates of net leaf area production and loss, and on net whole-plant nitrogen retention. At 28 degree C, elevated CO 2 stimulated the initial production of leaf area in both species, which led to an initial stimulation of biomass accumulation at the higher CO 2 level. However, in elevated CO 2 at 28 degree, the rate of net leaf area loss for Abutilon increased while that of Amaranthus decreased. Furthermore, high CO 2 apparently enhanced the ability of Amaranthus to retain nitrogen at this temperature, which may have helped to enhance photosynthesis, whereas nitrogen retention was unaffected in Abutilon

  13. InAs quantum dot growth on AlxGa1−xAs by metalorganic vapor phase epitaxy for intermediate band solar cells

    International Nuclear Information System (INIS)

    Jakomin, R.; Kawabata, R. M. S.; Souza, P. L.; Mourão, R. T.; Pires, M. P.; Micha, D. N.; Xie, H.; Fischer, A. M.; Ponce, F. A.

    2014-01-01

    InAs quantum dot multilayers have been grown using Al x Ga 1−x As spacers with dimensions and compositions near the theoretical values for optimized efficiencies in intermediate band photovoltaic cells. Using an aluminium composition of x = 0.3 and InAs dot vertical dimensions of 5 nm, transitions to an intermediate band with energy close to the ideal theoretical value have been obtained. Optimum size uniformity and density have been achieved by capping the quantum dots with GaAs following the indium-flush method. This approach has also resulted in minimization of crystalline defects in the epilayer structure

  14. Coordination Between Wind Power, Hydro Storage Facility and Conventional Generating Units According to the Annual Growth Load

    Directory of Open Access Journals (Sweden)

    Shahrokh Shojaeean

    2013-04-01

    Full Text Available Considering the growing trend of the consumption of the electric power and the global tendency to substitute new renewable sources of energy, this paper proposes a Monte Carlo based method to determine an optimal level of this change. Considering the limitation of the wind farms in continuous supply of electric power, hydrostatic power storage facilities are used beside wind farms so that the electric power could be stored and fed in a continuous flow into power systems. Due to the gradual exclusion of conventional generators and 5 percent annual load increments, LOLE index was used in order to calculate the amount of the wind power and the capacity of the necessary power storage facility. To this end, LOLE index was calculated for the first year as the reference index for the estimation of the amount of wind power and the capacity of the storage facility in consequent years. For the upcoming years, calculations have been made to account for the gradual exclusion of conventional generators in proportion to load increments. The proposed method has been implemented and simulated on IEEE-RTS test system.

  15. Silicon ribbon growth by a capillary action shaping technique. Annual report (Quarterly technical progress report No. 9)

    Energy Technology Data Exchange (ETDEWEB)

    Schwuttke, G.H.; Ciszek, T.F.; Kran, A.

    1977-10-01

    Progress on the technological and economical assessment of ribbon growth of silicon by a capillary action shaping technique is reported. Progress in scale-up of the process from 50 mm to 100 mm ribbon widths is presented, the use of vitreous carbon as a crucible material is analyzed, and preliminary tests of CVD Si/sub 3/N/sub 4/ as a potential die material are reported. Diffusion length measurements by SEM, equipment and procedure for defect display under MOS structure in silicon ribbon for lifetime interpretation, and an assessment of ribbon technology are discussed. (WHK)

  16. Embracing the future: Canada's nuclear renewal and growth. 28th annual conference of the Canadian Nuclear Society and 31st CNS/CNA student conference

    International Nuclear Information System (INIS)

    2007-01-01

    The 28th Annual Conference of the Canadian Nuclear Society and 31st CNS/CNA Student Conference was held on June 3-6, 2007 in Saint John, New Brunswick. The central objective of this conference was to provide a forum for exchange of views on how this technical enterprise can best serve the needs of humanity, now and in the future. 'Embracing the Future: Canada's Nuclear Renewal and Growth' was the theme for this year's gathering of nuclear industry experts from across Canada and around the world. This theme reflects the global renaissance of interest in nuclear technology, strongly evident here in Canada through plant refurbishments (underway and planned), new-build planning, renewal and expansion of the nuclear workforce, and growth in public support for environmentally sustainable technology. Topics for discussion at this conference include: the nuclear renaissance in Canada and around the world, recent developments at Canadian utilities, status of plant refurbishment and new build plans, and uranium supply issues. For business, energy, and science reporters this conference offers an insight into major nuclear projects and an opportunity to meet leaders in the nuclear sector. Over 100 technical papers were presented, as well as over 20 student papers, in the following sessions: control room operation; safety analyses; environment and waste management; plant life management and refurbishment; reactor physics; advanced reactor design; instrumentation control; general nuclear topics and standards; chemistry and materials; probabilistic safety assessment; and, performance improvement

  17. The effect of changes in sea surface temperature on linear growth of Porites coral in Ambon Bay

    International Nuclear Information System (INIS)

    Corvianawatie, Corry; Putri, Mutiara R.; Cahyarini, Sri Y.

    2015-01-01

    Coral is one of the most important organisms in the coral reef ecosystem. There are several factors affecting coral growth, one of them is changes in sea surface temperature (SST). The purpose of this research is to understand the influence of SST variability on the annual linear growth of Porites coral taken from Ambon Bay. The annual coral linear growth was calculated and compared to the annual SST from the Extended Reconstructed Sea Surface Temperature version 3b (ERSST v3b) model. Coral growth was calculated by using Coral X-radiograph Density System (CoralXDS) software. Coral sample X-radiographs were used as input data. Chronology was developed by calculating the coral’s annual growth bands. A pair of high and low density banding patterns observed in the coral’s X-radiograph represent one year of coral growth. The results of this study shows that Porites coral extents from 2001-2009 and had an average growth rate of 1.46 cm/year. Statistical analysis shows that the annual coral linear growth declined by 0.015 cm/year while the annual SST declined by 0.013°C/year. SST and the annual linear growth of Porites coral in the Ambon Bay is insignificantly correlated with r=0.304 (n=9, p>0.05). This indicates that annual SST variability does not significantly influence the linear growth of Porites coral from Ambon Bay. It is suggested that sedimentation load, salinity, pH or other environmental factors may affect annual linear coral growth

  18. The effect of changes in sea surface temperature on linear growth of Porites coral in Ambon Bay

    Energy Technology Data Exchange (ETDEWEB)

    Corvianawatie, Corry, E-mail: corvianawatie@students.itb.ac.id; Putri, Mutiara R., E-mail: mutiara.putri@fitb.itb.ac.id [Oceanography Study Program, Bandung Institute of Technology (ITB), Jl. Ganesha 10 Bandung (Indonesia); Cahyarini, Sri Y., E-mail: yuda@geotek.lipi.go.id [Research Center for Geotechnology, Indonesian Institute of Sciences (LIPI), Bandung (Indonesia)

    2015-09-30

    Coral is one of the most important organisms in the coral reef ecosystem. There are several factors affecting coral growth, one of them is changes in sea surface temperature (SST). The purpose of this research is to understand the influence of SST variability on the annual linear growth of Porites coral taken from Ambon Bay. The annual coral linear growth was calculated and compared to the annual SST from the Extended Reconstructed Sea Surface Temperature version 3b (ERSST v3b) model. Coral growth was calculated by using Coral X-radiograph Density System (CoralXDS) software. Coral sample X-radiographs were used as input data. Chronology was developed by calculating the coral’s annual growth bands. A pair of high and low density banding patterns observed in the coral’s X-radiograph represent one year of coral growth. The results of this study shows that Porites coral extents from 2001-2009 and had an average growth rate of 1.46 cm/year. Statistical analysis shows that the annual coral linear growth declined by 0.015 cm/year while the annual SST declined by 0.013°C/year. SST and the annual linear growth of Porites coral in the Ambon Bay is insignificantly correlated with r=0.304 (n=9, p>0.05). This indicates that annual SST variability does not significantly influence the linear growth of Porites coral from Ambon Bay. It is suggested that sedimentation load, salinity, pH or other environmental factors may affect annual linear coral growth.

  19. Effects of annual and interannual environmental variability on soil fungi associated with an old-growth, temperate hardwood forest.

    Science.gov (United States)

    Burke, David J

    2015-06-01

    Seasonal and interannual variability in temperature, precipitation and chemical resources may regulate fungal community structure in forests but the effect of such variability is still poorly understood. In this study, I examined changes in fungal communities over two years and how these changes were correlated to natural variation in soil conditions. Soil cores were collected every month for three years from permanent plots established in an old-growth hardwood forest, and molecular methods were used to detect fungal species. Species richness and diversity were not consistent between years with richness and diversity significantly affected by season in one year but significantly affected by depth in the other year. These differences were associated with variation in late winter snow cover. Fungal communities significantly varied by plot location, season and depth and differences were consistent between years but fungal species within the community were not consistent in their seasonality or in their preference for certain soil depths. Some fungal species, however, were found to be consistently correlated with soil chemistry across sampled years. These results suggest that fungal community changes reflect the behavior of the individual species within the community pool and how those species respond to local resource availability. © FEMS 2015. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.

  20. Reduced insulin-like growth factor-I serum levels in formerly obese women subjected to laparoscopic-adjustable gastric banding or diet-induced long-term caloric restriction.

    Science.gov (United States)

    Mitterberger, Maria C; Mattesich, Monika; Klaver, Elise; Piza-Katzer, Hildegunde; Zwerschke, Werner

    2011-11-01

    Life-span extension in laboratory rodents induced by long-term caloric restriction correlates with decreased serum insulin-like growth factor-I (IGF-I) levels. Reduced activity of the growth hormone/IGF-I signaling system slows aging and increases longevity in mutant mouse models. In the present study, we show that long-term caloric restriction achieved by two different interventions for 4 years, either laparoscopic-adjustable gastric banding or reducing diet, leads to reduced IGF-I serum levels in formerly obese women relative to normal-weight women eating ad libitum. Moreover, we present evidence that the long-term caloric restriction interventions reduce fasting growth hormone serum levels. The present study indicates that the activity of the growth hormone/IGF-I axis is reduced in long-term calorically restricted formerly obese humans. Furthermore, our findings suggest that the duration and severity of the caloric restriction intervention are important for the outcome on the growth hormone/IGF-I axis in humans.

  1. Soil amendment effects on the exotic annual grass Bromus tectorum L. and facilitation of its growth by the native perennial grass Hilaria jamesii (Torr.) Benth

    Science.gov (United States)

    Belnap, J.; Sherrod, S.K.

    2009-01-01

    Greenhouse experiments were undertaken to identify soil factors that curtail growth of the exotic annual grass Bromus tectorum L. (cheatgrass) without significantly inhibiting growth of native perennial grasses (here represented by Hilaria jamesii [Torr.] Benth). We grew B. tectorum and H. jamesii alone (monoculture pots) and together (combination pots) in soil treatments that manipulated levels of soil phosphorus, potassium, and sodium. Hilaria jamesii showed no decline when its aboveground biomass in any of the applied treatments was compared to the control in either the monoculture or combination pots. Monoculture pots of B. tectorum showed a decline in aboveground biomass with the addition of Na2HPO4 and K2HPO4. Interestingly, in pots where H. jamesii was present, the negative effect of these treatments was ameliorated. Whereas the presence of B. tectorum generally decreased the aboveground biomass of H. jamesii (comparing aboveground biomass in monoculture versus combination pots), the presence of H. jamesii resulted in an enhancement of B. tectorum aboveground biomass by up to 900%. We hypothesize that B. tectorum was able to obtain resources from H. jamesii, an action that benefited B. tectorum while generally harming H. jamesii. Possible ways resources may be gained by B. tectorum from native perennial grasses include (1) B. tectorum is protected from salt stress by native plants or associated soil biota; (2) when B. tectorum is grown with H. jamesii, the native soil biota is altered in a way that favors B. tectorum growth, including B. tectorum tapping into the mycorrhizal network of native plants and obtaining resources from them; (3) B. tectorum can take advantage of root exudates from native plants, including water and nutrients released by natives via hydraulic redistribution; and (4) B. tectorum is able to utilize some combination of the above mechanisms. In summary, land managers may find adding soil treatments can temporarily suppress B. tectorum

  2. Phosphorus status and microbial community of paddy soil with the growth of annual ryegrass (Lolium multiflorum Lam.) under different phosphorus fertilizer treatments*

    Science.gov (United States)

    Guo, Hai-chao; Wang, Guang-huo

    2009-01-01

    Annual ryegrass (Lolium multiflorum Lam.) was grown in paddy soil in pots under different phosphorus (P) fertilizer treatments to investigate changes of P fractions and microbial community of the soil. The treatments included Kunyang phosphate rock (KPR) applications at 50 mg P/kg (KPR50) and 250 mg P/kg (KPR250), mono-calcium phosphate (MCP) application at 50 mg P/kg (MCP50), and the control without P application. The results showed that KPR50, KPR250, and MCP50 applications significantly increased the dry weight of the ryegrass by 13%, 38%, and 55%, and increased P uptake by 19%, 135%, and 324%, respectively. Compared with MCP50, the relative effectiveness of KPR50 and KPR250 treatments in ryegrass production was about 23% and 68%, respectively. After one season of ryegrass growth, the KPR50, KPR250, and MCP50 applications increased soil-available P by 13.4%, 26.8%, and 55.2%, respectively. More than 80% of the applied KPR-P remained as HCl-P fraction in the soil. Phospholipid fatty acid (PLFA) analysis showed that the total and bacterial PLFAs were significantly higher in the soils with KPR250 and MCP50 treatments compared with KPR50 and control. The latter had no significant difference in the total or bacterial PLFAs. The KPR50, KPR250, and MCP50 treatments increased fungal PLFA by 69%, 103%, and 69%, respectively. Both the principal component analysis and the cluster analysis of the PLFA data suggest that P treatments altered the microbial community composition of the soils, and that P availability might be an important contributor to the changes in the microbial community structure during the ryegrass growth in the paddy soils. PMID:19817001

  3. Mum, why do you keep on growing? Impacts of environmental variability on optimal growth and reproduction allocation strategies of annual plants.

    Science.gov (United States)

    De Lara, Michel

    2006-05-01

    In their 1990 paper Optimal reproductive efforts and the timing of reproduction of annual plants in randomly varying environments, Amir and Cohen considered stochastic environments consisting of i.i.d. sequences in an optimal allocation discrete-time model. We suppose here that the sequence of environmental factors is more generally described by a Markov chain. Moreover, we discuss the connection between the time interval of the discrete-time dynamic model and the ability of the plant to rebuild completely its vegetative body (from reserves). We formulate a stochastic optimization problem covering the so-called linear and logarithmic fitness (corresponding to variation within and between years), which yields optimal strategies. For "linear maximizers'', we analyse how optimal strategies depend upon the environmental variability type: constant, random stationary, random i.i.d., random monotonous. We provide general patterns in terms of targets and thresholds, including both determinate and indeterminate growth. We also provide a partial result on the comparison between ;"linear maximizers'' and "log maximizers''. Numerical simulations are provided, allowing to give a hint at the effect of different mathematical assumptions.

  4. Annual Report to the Bonneville Power Administration, Reporting Period: April 2008 - February 2009 [re: "Survival and Growth in the Columbia River Plume and north California Current"].

    Energy Technology Data Exchange (ETDEWEB)

    Northwest Fisheries Science Center, NOAA Fisheries; Cooperative Institute for Marine Resources Studies, Oregon State University; OGI School of Science & Engineering, Oregon Health Sciences University.

    2009-07-17

    We have made substantial progress toward our objectives outlined in our BPA supported proposal entitled 'Columbia River Basin Juvenile Salmonids: Survival and Growth in the Columbia River Plume and northern California Current' which we report on herein. During 2008, we were able to successfully conduct 3 mesoscale cruises. We also were able to conduct 7 biweekly predator cruises, along with substantial shore-based visual observations of seabirds. Detailed results of the mesoscale cruises are available in the Cruise Reports and summarized in the next section. We have taken a proactive approach to getting the results of our research to fisheries managers and the general public. We have begun to make annual predictions based on ocean conditions of the relative survival of juvenile coho and Chinook salmon well before they return as adults. This is based on both biological and physical indicators that we measure during our surveys or collect from outside data sources. Examples of our predictions for 2009 and 2010 are available on the following web site: http://www.nwfsc.noaa.gov/research/divisions/fed/oeip/a-ecinhome.cfm.

  5. The role of feeding regimens in the growth of neonate broad-banded water snakes, Nerodia fasciata confluens, and possible effects on reproduction.

    Science.gov (United States)

    Scudder, R M; Burghardt, G M

    1985-05-01

    The effect of different feeding regimens on the growth pattern of Nerodia fasciata confluens was tested using a litter of 18 captive-born neonates. The snakes were divided among three feeding groups: one group fed once per week, another fed twice per week, and the third fed on alternate days. The once per week and the twice per week groups were offered the same weight of food each week, while the alternate-day group was offered food in excess of ingestion levels during each feeding session. The results indicate that there is a shift in the allocation of energy for growth in weight, snout-vent length, and tail length with a change in the feeding regimen. Females were affected more than the males. The results are discussed in relation to their possible effect on reproduction.

  6. Congenital Constriction Band Syndrome

    OpenAIRE

    Rajesh Gupta, Fareed Malik, Rishabh Gupta, M.A.Basit, Dara Singh

    2008-01-01

    Congenital constriction bands are anomalous bands that encircle a digit or an extremity. Congenitalconstriction band syndrome is rare condition and is mostly associated with other musculoskeletaldisorders.We report such a rare experience.

  7. Combined effects of blue light and supplemental far-red light and effects of increasing red light with constant far-red light on growth of kidney bean [Phaseolus vulgaris] under mixtures of narrow-band light sources

    International Nuclear Information System (INIS)

    Hanyu, H.; Shoji, K.

    2000-01-01

    Increasing blue light and decreasing R: FR with supplementary far-red light affect morphogenesis, dry matter production and dry matter partitioning to leaves, stems and roots. In this study, the combined effects of the two spectral treatments were examined in kidney bean (Phaseolus vulgaris L.) grown under the mixture of four different narrow-band light sources. In addition, because the leaf and stem growth are accelerated by increasing red light (600-700 nm) in proportion to far-red light (700-800 nm) while keeping R : FR constant, this study was conducted to determine whether red light or far-red light causes the acceleration of growth. Increasing blue light (400-500 nm) and decreasing R : FR only interacted on stem extension. The results illustrated with figures suggest that blue light amplifies or attenuates the acceleration of stem extension caused by decreasing R : FR. On the other hand, increasing red light with constant far-red light had no influence on leaf expansion or stem extension while R : FR increased. Because the acceleration of leaf and stem growth is caused by increasing either far-red light or both red and far-red light in our environmental conditions, the stimulative effects on leaves and stems seem to require increases in far-red light rather than red light

  8. Characteristics of Decomposition Powers of L-Band Multi-Polarimetric SAR in Assessing Tree Growth of Industrial Plantation Forests in the Tropics

    Directory of Open Access Journals (Sweden)

    Yoshio Yamaguchi

    2012-10-01

    Full Text Available A decomposition scheme was applied to ALOS/PALSAR data obtained from a fast-growing tree plantation in Sumatra, Indonesia to extract tree stem information and then estimate the forest stand volume. The scattering power decomposition of the polarimetric SAR data was performed both with and without a rotation matrix and compared to the following field-measured forest biometric parameters: tree diameter, tree height and stand volume. The analytical results involving the rotation matrix correlated better than those without the rotation matrix even for natural scattering surfaces within the forests. Our primary finding was that all of the decomposition powers from the rotated matrix correlated significantly to the forest biometric parameters when divided by the total power. The surface scattering ratio of the total power markedly decreased with the forest growth, whereas the canopy and double-bounce scattering ratios increased. The observations of the decomposition powers were consistent with the tree growth characteristics. Consequently, we found a significant logarithmic relationship between the decomposition powers and the forest biometric parameters that can potentially be used to estimate the forest stand volume.

  9. An assessment of sex chromosome copy number in a phenotypic female patient with hypergonadtropic hypogonadism, primary amenorrhea and growth retardation by GTG-banding and FISH in peripheral blood and skin tissues

    Energy Technology Data Exchange (ETDEWEB)

    Jackson, I.M.D.; DeMoranville, B.; Grollino, M.G. [Brown Univ. School of Medicine, Providence, RI (United States)] [and others

    1994-09-01

    The present report describes studies performed on an 18-year-old phenotypic female referred because of primary amenorrhea, hypergonadotropic hypoganadism and growth retardation. The clinical features raised the possibility of a gonadal dysgenesis. The ovaries were not identified on either side. Her testosterone was significantly elevated, with serum level at 48 ng/dl, and her free testosterone at 7 pg/ml. A GTG-banding analysis of 33 peripheral blood leukocytes revealed the modal number of chromosomes to be 46 per cell with a male sex constitution and normal appearing banding patterns (46,XY). In view of the clinical findings, additional cells were scored to rule out low percentage mosaicism. Out of 35 additional GTG-banded cells scored for the sex chromosomes, 4 cells (11.5%) were found to contain only one copy of the X chromosome. Fluorescent in situ hybridization (FISH) using dual color biotinylated X and Y probes (Imagenetics) was subsequently performed. Out of approximately 500 cells scored, 87% were found to be XY and 9% were found to be positive for the X signal only, versus 7% and 3% X signal only for 2 XY controls, aged 61 and 46, respectively. As loss of the Y chromosome has been reported in elderly males as well as certain males with leukemia, the age of the controls was important to note. To unequivocally establish the presence of mosaicism, a skin biopsy was obtained for fibroblast culture. Out of 388 total cells scored, 286 (74%) were found to be XY and 46 (12%) were found to be X, versus 99% XY and <1% X in controls. GTG-banding analysis of the same fibroblast culture is currently in progress. Preliminary data on this specimen thus far corroborate results of the FISH study. The presence of XY cells, along with an increased testosterone level, raises the distinct possibility of a gonadoblastoma. In view of this increased risk, arrangements are being made for the patient to have a laparoscopy and surgical removal of her presumptive streak gonads.

  10. Chronology of lead pollution contained in banded coral skeletons

    Energy Technology Data Exchange (ETDEWEB)

    Dodge, R E; Gilbert, T R

    1984-08-01

    The possibility of the annual skeletal growth bands of reef-building corals containing a record of lead additions to the marine environment was investigated using coral skeletons from St. Croix, Virgin Islands. Concentrations of lead within a coral from a polluted reef averaged 395 ng/g, five fold higher than within a coral from a pristine site, 87 ng/g. The lead chronologies of both corals showed a significant increase in concentration towards the present during the past 26 yr. The increase in lead concentration in the coral from the pristine site is suggested to represent the increase in lead availability from global pollution. Coral skeletons offer the probability of development into tools for long term chemical recorders of levels of lead and possibly other metals or compounds in seawater. 50 references, 3 figures, 1 table.

  11. Latest Rate, Extent, and Temporal Evolution of Growth Faulting over Greater Houston Region Revealed by Multi- Band InSAR Time-Series Analysis

    Science.gov (United States)

    Qu, F.; Lu, Z.; Kim, J. W.

    2017-12-01

    Growth faults are common and continue to evolve throughout the unconsolidated sediments of Greater Houston (GH) region in Texas. Presence of faults can induce localized surface displacements, aggravate localized subsidence, and discontinue the integrity of ground water flow. Property damages due to fault creep have become more evident during the past few years over the GH area, portraying the necessity of further study of these faults. Interferometric synthetic aperture radar (InSAR) has been proven to be effective in mapping creep along and/or across faults. However, extracting a short wavelength, as well as small amplitude of the creep signal (about 10-20 mm/year) from long time span interferograms is extremely difficult, especially in agricultural or vegetated areas. This paper aims to map and monitor the latest rate, extent, and temporal evolution of faulting at a highest spatial density over GH region using an improved Multi-temporal InSAR (MTI) technique. The method, with maximized usable signal and correlation, has the ability to identify and monitor the active faults to provide an accurate and elaborate image of the faults. In this study, two neighboring ALOS tracks and Sentinel-1A datasets are used. Many zones of steep phase gradients and/or discontinuities have been recognized from the long term velocity maps by both ALOS (2007-2011) and Sentinei-1A (2015-2017) imagery. Not only those previously known faults position but also the new fault traces that have not been mapped by other techniques are imaged by our MTI technique. Fault damage and visible cracking of ground were evident at most locations through our field survey. The discovery of new fault activation, or faults moved from earlier locations is a part of the Big Barn Fault and Conroe fault system, trending from southwest to northeast between Hockley and Conroe. The location of area of subsidence over GH is also shrinking and migrating toward the northeast (Montgomery County) after 2000. The

  12. Band structure of semiconductors

    CERN Document Server

    Tsidilkovski, I M

    2013-01-01

    Band Structure of Semiconductors provides a review of the theoretical and experimental methods of investigating band structure and an analysis of the results of the developments in this field. The book presents the problems, methods, and applications in the study of band structure. Topics on the computational methods of band structure; band structures of important semiconducting materials; behavior of an electron in a perturbed periodic field; effective masses and g-factors for the most commonly encountered band structures; and the treatment of cyclotron resonance, Shubnikov-de Haas oscillatio

  13. The dynamics of a shear band

    Science.gov (United States)

    Giarola, Diana; Capuani, Domenico; Bigoni, Davide

    2018-03-01

    A shear band of finite length, formed inside a ductile material at a certain stage of a continued homogeneous strain, provides a dynamic perturbation to an incident wave field, which strongly influences the dynamics of the material and affects its path to failure. The investigation of this perturbation is presented for a ductile metal, with reference to the incremental mechanics of a material obeying the J2-deformation theory of plasticity (a special form of prestressed, elastic, anisotropic, and incompressible solid). The treatment originates from the derivation of integral representations relating the incremental mechanical fields at every point of the medium to the incremental displacement jump across the shear band faces, generated by an impinging wave. The boundary integral equations (under the plane strain assumption) are numerically approached through a collocation technique, which keeps into account the singularity at the shear band tips and permits the analysis of an incident wave impinging a shear band. It is shown that the presence of the shear band induces a resonance, visible in the incremental displacement field and in the stress intensity factor at the shear band tips, which promotes shear band growth. Moreover, the waves scattered by the shear band are shown to generate a fine texture of vibrations, parallel to the shear band line and propagating at a long distance from it, but leaving a sort of conical shadow zone, which emanates from the tips of the shear band.

  14. Growth of high phase-match temperature LiNbO3 single crystals. Annual report for period ending March 15, 1978

    International Nuclear Information System (INIS)

    Kway, W.L.; Feigelson, R.S.

    1978-09-01

    LiNbO 3 crystal with T/sub pm/ greater than or equal to 180 0 C together with excellent phase matching characteristics and a high degree of optical homogeneity can be grown by the Czochralski technique with the following set of growth parameters: a melt composition of .54 Li 2 O/.46 Nb 2 O 5 doped with 1.0 mole % MgO; a growth rate of 2 mm/hr or less; positive axial and radial temperature gradients; and a crystal rotation rate of 50 rpm or higher to provide for a planar solid-liquid growth interface

  15. Heterogeneity among hospitals statewide in percentage shares of the annual growth of surgical caseloads of inpatient and outpatient major therapeutic procedures.

    Science.gov (United States)

    Dexter, Franklin; Jarvie, Craig; Epstein, Richard H

    2018-04-18

    Suppose that it were a generalizable finding, in both densely populated and rural states, that there is marked heterogeneity among hospitals in the percentage change in surgical caseload and/or in the total change in caseload. Then, individual hospitals should not simply rely on federal and state forecasts to infer their expected growth. Likewise, individual hospitals and their anesthesiology groups would best not rely on national or US regional surgical trends as causal reasons for local trends in caseload. We examined the potential utility of using state data on surgical caseload to predict local growth by using 6 years of data for surgical cases performed at hospitals in the States of Florida and Iowa. Observational cohort study. 303 hospitals in Iowa and Florida. Cases with major therapeutic procedures in 2010 or 2011 were compared pairwise by hospital with such cases in 2015 and 2016. Changes in counts of cases were decreases or increases, while study of growth set decreases equal to zero. Hospitals in Iowa had slightly lesser percentage changes than did hospitals in Florida (Mann-Whitney P = 0.016). Hospitals in Iowa had greater variability among hospitals in the change in counts of cases with a major therapeutic procedure than did hospitals in Florida (P < 0.0001). The 10% of hospitals with the largest growths in counts of cases accounted for approximately half of the total growth in Iowa (70%) and Florida (54%). The large share of total growth attributable to the upper 10th percentile of hospitals was not caused solely by the hospitals having large percentage growths, based on there being weak correlation between growth and percentage growth, among the hospitals that grew (Iowa: Kendall's tau = 0.286 [SE 0.120]; Florida tau = 0.253 [SE 0.064]). Even if the data from states or federal agencies reported growth in surgical cases, there is too much concentration of growth at a few hospitals for statewide growth rates to be useful for

  16. Wide Band to ''Double Band'' upgrade

    International Nuclear Information System (INIS)

    Kasper, P.; Currier, R.; Garbincius, P.; Butler, J.

    1988-06-01

    The Wide Band beam currently uses electrons obtained from secondary photon conversions to produce the photon beam incident on the experimental targets. By transporting the positrons produced in these conversions as well as the electrons it is possible to almost double the number of photons delivered to the experiments per primary beam proton. 11 figs

  17. Temporal and taxonomic contrasts in coral growth at Davies Reef, central Great Barrier Reef, Australia

    Science.gov (United States)

    Anderson, Kristen D.; Cantin, Neal E.; Heron, Scott F.; Lough, Janice M.; Pratchett, Morgan S.

    2018-06-01

    Demographic processes, such as growth, can have an important influence on the population and community structure of reef-building corals. Importantly, ongoing changes in environmental conditions (e.g. ocean warming) are expected to affect coral growth, contributing to changes in the structure of coral populations and communities. This study quantified contemporary growth rates (linear extension and calcification) for the staghorn coral, Acropora muricata, at Davies Reef, central Great Barrier Reef, Australia. Growth rates were measured at three different depths (5, 10, and 15 m) over 2 yr (2012-2014) assessing both seasonal and inter-annual variability. Results of this study were compared to equivalent measurements made in 1980-1982 at the same location. To assist in understanding inter-annual variability in coral growth, we also examined annual growth bands from massive Porites providing continuous growth and records of flooding history for Davies Reef over the period 1979-2012. Linear extension rates of A. muricata were substantially (11-62%) lower in 2012-2014 compared to 1980-1982, especially at 10 and 15 m depths. These declines in growth coincide with a + 0.14 °C change in annual mean temperature. For massive Porites, however, calcification rates were highly variable among years and there was no discernible long-term change in growth despite sustained increases in temperature of 0.064 °C per decade. Apparent differences in the growth rates of Acropora between 1980-1982 and 2012-2014 may reflect inter-annual variation in coral growth (as seen for massive Porites), though it is known branching Acropora is much more sensitive to changing environmental conditions than massive corals. There are persistent issues in assessing the sensitivities of branching corals to environmental change due to limited capacity for retrospective analyses of growth, but given their disproportionate contribution to habitat complexity and reef structure, it is critical to ascertain

  18. High water-use efficiency and growth contribute to success of non-native Erodium cicutarium in a Sonoran Desert winter annual community.

    Science.gov (United States)

    Kimball, Sarah; Gremer, Jennifer R; Barron-Gafford, Greg A; Angert, Amy L; Huxman, Travis E; Venable, D Lawrence

    2014-01-01

    The success of non-native, invasive species may be due to release from natural enemies, superior competitive abilities, or both. In the Sonoran Desert, Erodium cicutarium has increased in abundance over the last 30 years. While native species in this flora exhibit a strong among-species trade-off between relative growth rate and water-use efficiency, E. cicutarium seems to have a higher relative growth rate for its water-use efficiency value relative to the pattern across native species. This novel trait combination could provide the non-native species with a competitive advantage in this water-limited environment. To test the hypothesis that E. cicutarium is able to achieve high growth rates due to release from native herbivores, we compared the effects of herbivory on E. cicutarium and its native congener, Erodium texanum. We also compared these two species across a range of environmental conditions, both in a common garden and in two distinct seasons in the field, using growth analysis, isotopic compositions and leaf-level gas exchange. Additionally, we compared the competitive abilities of the two Erodium species in a greenhouse experiment. We found no evidence of herbivory to either species. Physiological measurements in a common environment revealed that E. cicutarium was able to achieve high growth rates while simultaneously controlling leaf-level water loss. Non-native E. cicutarium responded to favourable conditions in the field with greater specific leaf area and leaf area ratio than native E. texanum. The non-native Erodium was a stronger competitor than its native congener in a greenhouse competition experiment. The ability to maintain relatively higher values of water-use efficiency:relative growth rate in comparison to the native flora may be what enables E. cictarium to outcompete native species in both wet and dry years, resulting in an increase in abundance in the highly variable Sonoran Desert.

  19. Amniotic constriction bands

    Science.gov (United States)

    ... Supplements Videos & Tools Español You Are Here: Home → Medical Encyclopedia → Amniotic band sequence URL of this page: //medlineplus.gov/ency/ ... birth. The baby should be delivered in a medical center that has specialists experienced in caring for babies ... or partial loss of function of a body part. Congenital bands affecting large parts of the body cause the ...

  20. Renewable energy annual 1995

    International Nuclear Information System (INIS)

    1995-12-01

    The Renewable Energy Annual 1995 is the first in an expected series of annual reports the Energy Information Administration (EIA) intends to publish to provide a comprehensive assessment of renewable energy. This report presents the following information on the history, status, and prospects of renewable energy data: estimates of renewable resources; characterizations of renewable energy technologies; descriptions of industry infrastructures for individual technologies; evaluations of current market status; and assessments of near-term prospects for market growth. An international section is included, as well as two feature articles that discuss issues of importance for renewable energy as a whole. The report also contains a number of technical appendices and a glossary. The renewable energy sources included are biomass (wood), municipal solid waste, biomass-derived liquid fuels, geothermal, wind, and solar and photovoltaic

  1. Renewable energy annual 1995

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1995-12-01

    The Renewable Energy Annual 1995 is the first in an expected series of annual reports the Energy Information Administration (EIA) intends to publish to provide a comprehensive assessment of renewable energy. This report presents the following information on the history, status, and prospects of renewable energy data: estimates of renewable resources; characterizations of renewable energy technologies; descriptions of industry infrastructures for individual technologies; evaluations of current market status; and assessments of near-term prospects for market growth. An international section is included, as well as two feature articles that discuss issues of importance for renewable energy as a whole. The report also contains a number of technical appendices and a glossary. The renewable energy sources included are biomass (wood), municipal solid waste, biomass-derived liquid fuels, geothermal, wind, and solar and photovoltaic.

  2. Annual Energy Review 1999

    Energy Technology Data Exchange (ETDEWEB)

    Seiferlein, Katherine E. [USDOE Energy Information Administration (EIA), Washington, DC (United States)

    2000-07-01

    A generation ago the Ford Foundation convened a group of experts to explore and assess the Nation’s energy future, and published their conclusions in A Time To Choose: America’s Energy Future (Cambridge, MA: Ballinger, 1974). The Energy Policy Project developed scenarios of U.S. potential energy use in 1985 and 2000. Now, with 1985 well behind us and 2000 nearly on the record books, it may be of interest to take a look back to see what actually happened and consider what it means for our future. The study group sketched three primary scenarios with differing assumptions about the growth of energy use. The Historical Growth scenario assumed that U.S. energy consumption would continue to expand by 3.4 percent per year, the average rate from 1950 to 1970. This scenario assumed no intentional efforts to change the pattern of consumption, only efforts to encourage development of our energy supply. The Technical Fix scenario anticipated a “conscious national effort to use energy more efficiently through engineering know-how." The Zero Energy Growth scenario, while not clamping down on the economy or calling for austerity, incorporated the Technical Fix efficiencies plus additional efficiencies. This third path anticipated that economic growth would depend less on energy-intensive industries and more on those that require less energy, i.e., the service sector. In 2000, total energy consumption was projected to be 187 quadrillion British thermal units (Btu) in the Historical Growth case, 124 quadrillion Btu in the Technical Fix case, and 100 quadrillion Btu in the Zero Energy Growth case. The Annual Energy Review 1999 reports a preliminary total consumption for 1999 of 97 quadrillion Btu (see Table 1.1), and the Energy Information Administration’s Short-Term Energy Outlook (April 2000) forecasts total energy consumption of 98 quadrillion Btu in 2000. What energy consumption path did the United States actually travel to get from 1974, when the scenarios were drawn

  3. Band parameters of phosphorene

    International Nuclear Information System (INIS)

    Lew Yan Voon, L C; Wang, J; Zhang, Y; Willatzen, M

    2015-01-01

    Phosphorene is a two-dimensional nanomaterial with a direct band-gap at the Brillouin zone center. In this paper, we present a recently derived effective-mass theory of the band structure in the presence of strain and electric field, based upon group theory. Band parameters for this theory are computed using a first-principles theory based upon the generalized-gradient approximation to the density-functional theory. These parameters and Hamiltonian will be useful for modeling physical properties of phosphorene. (paper)

  4. Infrared diffuse interstellar bands

    Science.gov (United States)

    Galazutdinov, G. A.; Lee, Jae-Joon; Han, Inwoo; Lee, Byeong-Cheol; Valyavin, G.; Krełowski, J.

    2017-05-01

    We present high-resolution (R ˜ 45 000) profiles of 14 diffuse interstellar bands in the ˜1.45 to ˜2.45 μm range based on spectra obtained with the Immersion Grating INfrared Spectrograph at the McDonald Observatory. The revised list of diffuse bands with accurately estimated rest wavelengths includes six new features. The diffuse band at 15 268.2 Å demonstrates a very symmetric profile shape and thus can serve as a reference for finding the 'interstellar correction' to the rest wavelength frame in the H range, which suffers from a lack of known atomic/molecular lines.

  5. Band parameters of phosphorene

    DEFF Research Database (Denmark)

    Lew Yan Voon, L. C.; Wang, J.; Zhang, Y.

    2015-01-01

    Phosphorene is a two-dimensional nanomaterial with a direct band-gap at the Brillouin zone center. In this paper, we present a recently derived effective-mass theory of the band structure in the presence of strain and electric field, based upon group theory. Band parameters for this theory...... are computed using a first-principles theory based upon the generalized-gradient approximation to the density-functional theory. These parameters and Hamiltonian will be useful for modeling physical properties of phosphorene....

  6. NERSC 2001 Annual Report; ANNUAL

    International Nuclear Information System (INIS)

    Hules, John

    2001-01-01

    The National Energy Research Scientific Computing Center (NERSC) is the primary computational resource for scientific research funded by the DOE Office of Science. The Annual Report for FY2001 includes a summary of recent computational science conducted on NERSC systems (with abstracts of significant and representative projects); information about NERSC's current systems and services; descriptions of Berkeley Lab's current research and development projects in applied mathematics, computer science, and computational science; and a brief summary of NERSC's Strategic Plan for 2002-2005

  7. CSF oligoclonal banding - slideshow

    Science.gov (United States)

    ... this page: //medlineplus.gov/ency/presentations/100145.htm CSF oligoclonal banding - series—Normal anatomy To use the ... 5 out of 5 Overview The cerebrospinal fluid (CSF) serves to supply nutrients to the central nervous ...

  8. Decay of superdeformed bands

    International Nuclear Information System (INIS)

    Carpenter, M.P.; Khoo, T.L.; Lauritsen, T.

    1995-01-01

    One of the major challenges in the study of superdeformation is to directly connect the large number of superdeformed bands now known to the yrast states. In this way, excitation energies, spins and parities can be assigned to the levels in the second well which is essential to establish the collective and single-particle components of these bands. This paper will review some of the progress which has been made to understand the decay of superdeformed bands using the new arrays including the measurement of the total decay spectrum and the establishment of direct one-step decays from the superdeformed band to the yrast line in 194 Hg. 42 refs., 5 figs

  9. Laparoscopic gastric banding

    Science.gov (United States)

    ... eat by making you feel full after eating small amounts of food. After surgery, your doctor can adjust the band ... You will feel full after eating just a small amount of food. The food in the small upper pouch will ...

  10. Annual report 1976

    International Nuclear Information System (INIS)

    Lindh, U.; Sundberg, O.

    1977-01-01

    The Gustaf Werner Institute (GWI) annual report for the year 1976 presents in a condensed form the scientific activities in the disciplines High Energy Physics and Physical Biology at Uppsala University. The activities in High Energy Physics fall into three domains: Research with the local accelerator, participation in collaborations at international centers and work on the rebuilding of the Uppsala synchrocyclotron. A major subject of research in Physical Biology is control of growth and differentiation, as reflected in the kinetics of biochemical reactions or in the behaviour of healthy or malignant cells at various levels of organization. (Auth.)

  11. Annual Report 2011

    International Nuclear Information System (INIS)

    2011-01-01

    The PNRI Annual Report summarizes the institute's yearly progress in nuclear research and development projects, services, regulations, technology transfers and information dissemination on the peaceful applications of nuclear science and technology. The establishment and future operation of the Technetium 99m Generator Facility and the Electron Beam Facility will enhance the institute's capabilities. The PNRI has made great strides in agricultural and environmental research, helping to improve crop growth and water resource management. It served more clients availing of irradiation and other services, and was vigilant in monitoring incidents in the Southeast Asian region to preserve national nuclear safety and security

  12. Estimating the Effect of Urban Growth on Annual Runoff Volume Using GIS in the Erbil Sub-Basin of the Kurdistan Region of Iraq

    Directory of Open Access Journals (Sweden)

    Hasan Mohammed Hameed

    2017-02-01

    Full Text Available The growth and spread of impervious surfaces within urbanizing catchment areas pose signiificant threats to the quality of natural and built-up environments. Impervious surfaces prevent water infiltration into the soil, resulting in increased runoff generation. The Erbil Sub-basin was selected because the impervious cover is increasing rapidly and is affecting the hydrological condition of the watershed. The overall aim of this study is to examine the impact of urban growth and other changes in land use on runoff response during the study period of 1984 to 2014. The study describes long-term hydrologic responses within the rapidly developing catchment area of Erbil city, in the Kurdistan Region of Iraq. Data from six rainfall stations in and around the Erbil Sub-basin were used. A Digital Elevation Model (DEM was also used to extract the distribution of the drainage network. Historical levels of urban growth and the corresponding impervious areas, as well as land use/land cover changes were mapped from 1984 to 2014 using a temporal satellite image (Landsat to determine land use/land cover changes. Land use/land cover was combined with a hydrological model (SCS-CN to estimate the volume of runoff from the watershed. The study indicates that the urbanization of the watershed has increased the impervious land cover by 71% for the period from 1984 to 2004 and by 51% from 2004 to 2014. The volume of runoff was 85% higher in 2014 as compared to 1984 due to the increase in the impervious surface area; this is attributed to urban growth. The study also points out that the slope of the watershed in the Erbil sub-basin should be taken into account in surface runoff estimation as the upstream part of the watershed has a high gradient and the land is almost barren with very little vegetation cover; this causes an increase in the velocity of the flow and increases the risk of flooding in Erbil city.

  13. Soil metal concentrations and productivity of Betula populifolia (gray birch) as measured by field spectrometry and incremental annual growth in an abandoned urban Brownfield in New Jersey

    Energy Technology Data Exchange (ETDEWEB)

    Gallagher, Frank J. [Urban Forestry Program, Department of Ecology, Evolution and Natural Resources, Rutgers, State University, 14 College Farm Road, New Brunswick, NJ 08901-8551 (United States); Pechmann, Ildiko [Department of Biological Sciences, Rutgers, State University, 113 University Avenue, Newark, NJ 07102 (United States)], E-mail: pildiko@andromeda.rutgers.edu; Bogden, John D. [Department of Preventive Medicine and Community Health, University of Medicine and Dentistry of New Jersey - N. J. Medical School, P.O. Box 1709, Newark, NJ 07101-1709 (United States); Grabosky, Jason [Urban Forestry Program, Department of Ecology, Evolution and Natural Resources, Rutgers, State University, 14 College Farm Road, New Brunswick, NJ 08901-8551 (United States); Weis, Peddrick [Department of Radiology, University of Medicine and Dentistry of New Jersey - N. J. Medical School, P.O. Box 1709, Newark, NJ 07101-1709 (United States)

    2008-12-15

    A forested brownfield within Liberty State Park, Jersey City, New Jersey, USA, has soils with arsenic, chromium, lead, zinc and vanadium at concentrations above those considered ambient for the area. Using both satellite imagery and field spectral measurements, this study examines plant productivity at the assemblage and individual specimen level. Longer term growth trends (basal area increase in tree cores) were also studied. Leaf chlorophyll content within the hardwood assemblage showed a threshold model for metal tolerance, decreasing significantly beyond a soil total metal load (TML) of 3.0. Biomass production (calculated with RG - Red/Green Ratio Index) in Betula populifolia (gray birch), the co-dominant tree species, had an inverse relationship with the Zn concentration in leaf tissue during the growing season. Growth of B. populifolia exhibited a significant relationship with TML. Assemblage level NDVI and individual tree NDVI also had significant decreases with increasing TML. Ecosystem function measured as plant production is impaired at a critical soil metal load. - Ecosystem function as measured by plant production is impaired at a critical soil metal load (TML above 3) in northern hardwood assemblages growing in a metal-contaminated brownfield.

  14. Soil metal concentrations and productivity of Betula populifolia (gray birch) as measured by field spectrometry and incremental annual growth in an abandoned urban Brownfield in New Jersey

    International Nuclear Information System (INIS)

    Gallagher, Frank J.; Pechmann, Ildiko; Bogden, John D.; Grabosky, Jason; Weis, Peddrick

    2008-01-01

    A forested brownfield within Liberty State Park, Jersey City, New Jersey, USA, has soils with arsenic, chromium, lead, zinc and vanadium at concentrations above those considered ambient for the area. Using both satellite imagery and field spectral measurements, this study examines plant productivity at the assemblage and individual specimen level. Longer term growth trends (basal area increase in tree cores) were also studied. Leaf chlorophyll content within the hardwood assemblage showed a threshold model for metal tolerance, decreasing significantly beyond a soil total metal load (TML) of 3.0. Biomass production (calculated with RG - Red/Green Ratio Index) in Betula populifolia (gray birch), the co-dominant tree species, had an inverse relationship with the Zn concentration in leaf tissue during the growing season. Growth of B. populifolia exhibited a significant relationship with TML. Assemblage level NDVI and individual tree NDVI also had significant decreases with increasing TML. Ecosystem function measured as plant production is impaired at a critical soil metal load. - Ecosystem function as measured by plant production is impaired at a critical soil metal load (TML above 3) in northern hardwood assemblages growing in a metal-contaminated brownfield

  15. Bomb-test 90Sr in Pacific and Indian Ocean surface water as recorded by banded corals

    International Nuclear Information System (INIS)

    Toggweiler, J.R.; Trumbore, S.

    1985-01-01

    We report here measurements of bomb-test 90 Sr activity in the CaCO 3 skeletons of banded head forming corals collected from nine locations in the tropical Pacific and Indian Oceans. Density variations in skeletal carbonate demarcate annual growth bands and allow one to section individual years. Measurements of 90 Sr activity in the annual bands reconstruct the activity of the water in which the coral grew. Our oldest records date to the early years of the nuclear era and record not only fallout deposition from the major U.S. and Soviet tests of 1958-1962, but also the huge, and largely unappreciated, localized inputs from the U.S. tests at Eniwetok and Bikini atolls during 1952-1958. In the 1960's the 90 Sr activity in Indian Ocean surface water was twice as high as activity levels in the South Pacific at comparable latitudes. We suggest that substantial amounts of northern hemisphere fallout moved west and south into the Indian Ocean via passages through the Indonesian archipelago. Equatorial Pacific 90 Sr levels have remained relatively constant from the mid 1960's through the end of 1970's in spite of 90 Sr decay, reflecting a large-scale transfer of water between the temperate and tropical North Pacific. Activity levels at Fanning Is. (4 0 N, 160 0 W) appear to vary in conjunction with the 3-4 year El Nino cycle. (orig.)

  16. Longevity and growth of Acacia tortilis; insights from 14C content and anatomy of wood.

    Science.gov (United States)

    Andersen, Gidske L; Krzywinski, Knut

    2007-06-15

    Acacia tortilis is a keystone species across arid ecosystems in Africa and the Middle East. Yet, its life-history, longevity and growth are poorly known, and consequently ongoing changes in tree populations cannot be managed in an appropriate manner. In other arid areas parenchymatic bands marking growth zones in the wood have made dendrochronological studies possible. The possibilities for using pre- and post-bomb 14C content in wood samples along with the presence of narrow marginal parenchymatic bands in the wood is therefore tested to gain further insight into the age, growth and growth conditions of A. tortilis in the hyper-arid Eastern Desert of Egypt. Based on age scenarios and the Gompertz growth equation, the age of trees studied seems to be from 200 up to 650 years. Annual radial growth estimated from calibrated dates based on the post-bomb 14C content of samples is up to 2.4 mm, but varies both spatially and temporally. Parenchymatic bands are not formed regularly. The correlation in band pattern among trees is poor, both among and within sites. The post-bomb 14C content of A. tortilis wood gives valuable information on tree growth and is required to assess the age scenario approach applied here. This approach indicates high longevities and slow growth of trees. Special management measures should therefore be taken at sites where the trend in tree population size is negative. The possibilities for dendrochronological studies based on A. tortilis from the Eastern Desert are poor. However, marginal parenchymatic bands can give insight into fine scale variation in growth conditions and the past management of trees.

  17. Longevity and growth of Acacia tortilis; insights from 14C content and anatomy of wood

    Directory of Open Access Journals (Sweden)

    Krzywinski Knut

    2007-06-01

    Full Text Available Abstract Background Acacia tortilis is a keystone species across arid ecosystems in Africa and the Middle East. Yet, its life-history, longevity and growth are poorly known, and consequently ongoing changes in tree populations cannot be managed in an appropriate manner. In other arid areas parenchymatic bands marking growth zones in the wood have made dendrochronological studies possible. The possibilities for using pre- and post-bomb 14C content in wood samples along with the presence of narrow marginal parenchymatic bands in the wood is therefore tested to gain further insight into the age, growth and growth conditions of A. tortilis in the hyper-arid Eastern Desert of Egypt. Results Based on age scenarios and the Gompertz growth equation, the age of trees studied seems to be from 200 up to 650 years. Annual radial growth estimated from calibrated dates based on the post-bomb 14C content of samples is up to 2.4 mm, but varies both spatially and temporally. Parenchymatic bands are not formed regularly. The correlation in band pattern among trees is poor, both among and within sites. Conclusion The post-bomb 14C content of A. tortilis wood gives valuable information on tree growth and is required to assess the age scenario approach applied here. This approach indicates high longevities and slow growth of trees. Special management measures should therefore be taken at sites where the trend in tree population size is negative. The possibilities for dendrochronological studies based on A. tortilis from the Eastern Desert are poor. However, marginal parenchymatic bands can give insight into fine scale variation in growth conditions and the past management of trees.

  18. Annual report

    International Nuclear Information System (INIS)

    1986-01-01

    This is the thirty-ninth annual report of the Atomic Energy Control Board. The period covered by this report is the year ending March 31, 1986. The Atomic Energy Control Board (AECB) was established in 1946, by the Atomic Energy Control Act (AEC Act), (Revised Statues of Canada (R.S.C.) 1970 cA19). It is a departmental corporation (Schedule B) within the meaning and purpose of the Financial Administration Act. The AECB controls the development, application and use of atomic energy in Canada, and participates on behalf of Canada in international measures of control. The AECB is also repsonsible for the administration of the Nuclear Liability Act, (R.S.C. 1970 c29 1st Supp) as amended, including the designation of nuclear installations and the prescription of basic insurance to be carried by the operators of such nuclear installations. The AECB reports to Parliament through a designated Minister, currently the Minister of Energy, Mines and Resources

  19. Steel Band Repertoire: The Case for Original Music

    Science.gov (United States)

    Tanner, Chris

    2010-01-01

    In the past few decades, the steel band art form has experienced consistent growth and development in several key respects. For example, in the United States, the sheer number of steel band programs has steadily increased, and it appears that this trend will continue in the future. Additionally, pan builders and tuners have made great strides in…

  20. International energy annual, 1989

    International Nuclear Information System (INIS)

    1991-02-01

    This report is prepared annually and presents the latest information and trends on world energy production, consumption, reserves, trade, and prices for five primary energy sources: petroleum, natural gas, coal, hydroelectricity, and nuclear electricity. It also presents information on petroleum products. Since the early 1980's the world's total output of primary energy has increased steadily. The annual average growth rate of energy production during the decade was 1.9 percent. Throughout the 1980's, petroleum was the world's most heavily used type of energy. In 1989, three countries--the United States, the USSR, and China--were the leading producers and consumers of world energy. Together, these countries consumed and produced almost 50 percent of the world's total energy. Global production and consumption of crude oil and natural gas liquids increased during the 1980's, despite a decline in total production and demand in the early part of the decade. World production of dry natural gas continued to rise steadily in the 1980's. For the last several years, China has been the leading producer of coal, followed by the United States. In 1989, hydroelectricity supply declined slightly from the upward trend of the last 10 years. Nuclear power generation rose slightly from the 1988 level, compared with the marked growth in earlier years. Prices for major crude oils all increased between 1988 and 1989, but remained well below the price levels at the beginning of the decade. 26 figs., 36 tabs

  1. 1998 annual report

    International Nuclear Information System (INIS)

    1999-01-01

    Talisman Energy Inc. is the largest Canadian-based independent oil and gas producer. Its main business activities include exploration, development, production and marketing of natural gas, natural gas liquids and crude oil. Main operating centres are in Canada, the North Sea, Indonesia and Sudan. Talisman Energy is also pursuing a number of high potential exploration ventures in Algeria and Trinidad. The Company has experienced a 30 per cent annual production growth rate over the last five years and has consistently increased its reserve base, while maintaining competitive finding and development costs. This report contains an extensive review of activities and achievements in each of Talisman Energy Inc.'s exploration and operating areas during 1998, a consolidated financial statement, a management discussion and analysis of production and financial performance, and a review of corporate governance. Future prospects are also discussed. Continued growth of 10 to 15 per cent annually over the next two years is anticipated as a result of management's current investment program. tabs

  2. Ultra wide band antennas

    CERN Document Server

    Begaud, Xavier

    2013-01-01

    Ultra Wide Band Technology (UWB) has reached a level of maturity that allows us to offer wireless links with either high or low data rates. These wireless links are frequently associated with a location capability for which ultimate accuracy varies with the inverse of the frequency bandwidth. Using time or frequency domain waveforms, they are currently the subject of international standards facilitating their commercial implementation. Drawing up a complete state of the art, Ultra Wide Band Antennas is aimed at students, engineers and researchers and presents a summary of internationally recog

  3. AREVA annual results 2009

    International Nuclear Information System (INIS)

    2009-01-01

    AREVA expanded its backlog and increased its revenues compared with 2008, on strong installed base business and dynamic major projects, fostering growth in operating income of 240 million euros. As announced previously, Areva is implementing a financing plan suited to its objectives of profitable growth. The plan was implemented successfully in 2009, including the conclusion of an agreement, under very satisfactory terms, to sell its Transmission and Distribution business for 4 billion euros, asset sales for more than 1.5 billion euros, and successful bond issues of 3 billion euros. The plan will continue in 2010 with a capital increase, the completion of asset disposals and cost reduction and continued operational performance improvement programs. Areva bolstered its Renewable Energies business segment by supplementing its offshore wind power and biomass businesses with the acquisition of Ausra, a California-based leader in concentrated solar power technology. Despite the sale of T and D, Areva is maintaining its financial performance outlook for 2012: 12% average annual revenue growth to 12 billion euros in 2012, double digit operating margin and substantially positive free operating cash flow. Annual results 2009: - For the group as a whole, including Transmission and Distribution: Backlog: euros 49.4 bn (+2.5%), Revenues: euros 14 bn (+6.4%), Operating income: euros 501 m (+20.1%); - Nuclear and Renewable Energies perimeter: Backlog: euros 43.3 bn (+1.8%), Strong revenue growth: +5.4% to euros 8.5 bn, Operating income before provision for the Finnish project in the first half of 2009: euros 647 m, Operating income: euros 97 m, for a euros 240 m increase from 2008; - Net income attributable to equity holders of the parent: euros 552 m, i.e. euros 15.59 per share; - Net debt: euros 6,193 m; - Pro-forma net debt, including net cash to be received from the sale of T and D in 2010: euros 3,022 m; - Dividend of euros 7.06 per share to be proposed during the Annual

  4. Band-notched spiral antenna

    Science.gov (United States)

    Jeon, Jae; Chang, John

    2018-03-13

    A band-notched spiral antenna having one or more spiral arms extending from a radially inner end to a radially outer end for transmitting or receiving electromagnetic radiation over a frequency range, and one or more resonance structures positioned adjacent one or more segments of the spiral arm associated with a notch frequency band or bands of the frequency range so as to resonate and suppress the transmission or reception of electromagnetic radiation over said notch frequency band or bands.

  5. Quarterly, Bi-annual and Annual Reports

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The Quarterly, Bi-annual and Annual Reports are periodic reports issued for public release. For the deep set fishery these reports are issued quarterly and anually....

  6. Simplicial band depth for multivariate functional data

    KAUST Repository

    López-Pintado, Sara

    2014-03-05

    We propose notions of simplicial band depth for multivariate functional data that extend the univariate functional band depth. The proposed simplicial band depths provide simple and natural criteria to measure the centrality of a trajectory within a sample of curves. Based on these depths, a sample of multivariate curves can be ordered from the center outward and order statistics can be defined. Properties of the proposed depths, such as invariance and consistency, can be established. A simulation study shows the robustness of this new definition of depth and the advantages of using a multivariate depth versus the marginal depths for detecting outliers. Real data examples from growth curves and signature data are used to illustrate the performance and usefulness of the proposed depths. © 2014 Springer-Verlag Berlin Heidelberg.

  7. InAs quantum dot growth on Al{sub x}Ga{sub 1−x}As by metalorganic vapor phase epitaxy for intermediate band solar cells

    Energy Technology Data Exchange (ETDEWEB)

    Jakomin, R., E-mail: robertojakomin@xerem.ufrj.br [Campus de Xerém, Universidade Federal do Rio de Janeiro, UFRJ, Duque de Caxias-RJ (Brazil); Campus de Xerém, Universidade Federal do Rio de Janeiro, UFRJ, Duque de Caxias-RJ (Brazil); Kawabata, R. M. S.; Souza, P. L. [Instituto Nacional de Ciência e Tecnologia de Nanodispositivos Semicondutoires–DISSE–PUC-Rio, RJ (Brazil); Pontificia Universidade Católica do Rio de Janeiro, Marques de São Vicente 225, Rio de Janeiro, 22452-900 RJ (Brazil); Mourão, R. T.; Pires, M. P. [Instituto Nacional de Ciência e Tecnologia de Nanodispositivos Semicondutoires–DISSE–PUC-Rio, RJ (Brazil); Instituto de Física, Universidade Federal do Rio de Janeiro, UFRJ, Rio de Janeiro-RJ (Brazil); Micha, D. N. [Instituto Nacional de Ciência e Tecnologia de Nanodispositivos Semicondutoires–DISSE–PUC-Rio, RJ (Brazil); Instituto de Física, Universidade Federal do Rio de Janeiro, UFRJ, Rio de Janeiro-RJ (Brazil); Coordenação de Licenciatura em Física, CEFET/RJ, Petrópolis-RJ (Brazil); Xie, H.; Fischer, A. M.; Ponce, F. A. [Department of Physics, Arizona State University, Tempe, Arizona 85287-1504 (United States)

    2014-09-07

    InAs quantum dot multilayers have been grown using Al{sub x}Ga{sub 1−x}As spacers with dimensions and compositions near the theoretical values for optimized efficiencies in intermediate band photovoltaic cells. Using an aluminium composition of x = 0.3 and InAs dot vertical dimensions of 5 nm, transitions to an intermediate band with energy close to the ideal theoretical value have been obtained. Optimum size uniformity and density have been achieved by capping the quantum dots with GaAs following the indium-flush method. This approach has also resulted in minimization of crystalline defects in the epilayer structure.

  8. The hierarchically organized splitting of chromosome bands into sub-bands analyzed by multicolor banding (MCB).

    Science.gov (United States)

    Lehrer, H; Weise, A; Michel, S; Starke, H; Mrasek, K; Heller, A; Kuechler, A; Claussen, U; Liehr, T

    2004-01-01

    To clarify the nature of chromosome sub-bands in more detail, the multicolor banding (MCB) probe-set for chromosome 5 was hybridized to normal metaphase spreads of GTG band levels at approximately 850, approximately 550, approximately 400 and approximately 300. It could be observed that as the chromosomes became shorter, more of the initial 39 MCB pseudo-colors disappeared, ending with 18 MCB pseudo-colored bands at the approximately 300-band level. The hierarchically organized splitting of bands into sub-bands was analyzed by comparing the disappearance or appearance of pseudo-color bands of the four different band levels. The regions to split first are telomere-near, centromere-near and in 5q23-->q31, followed by 5p15, 5p14, and all GTG dark bands in 5q apart from 5q12 and 5q32 and finalized by sub-band building in 5p15.2, 5q21.2-->q21.3, 5q23.1 and 5q34. The direction of band splitting towards the centromere or the telomere could be assigned to each band separately. Pseudo-colors assigned to GTG-light bands were resistant to band splitting. These observations are in concordance with the recently proposed concept of chromosome region-specific protein swelling. Copyright 2003 S. Karger AG, Basel

  9. Observations of banding in first-year Arctic sea ice

    Science.gov (United States)

    Cole, David M.; Eicken, Hajo; Frey, Karoline; Shapiro, Lewis H.

    2004-08-01

    Horizontal banding features, alternating dark and bright horizontal bands apparent in ice cores and stratigraphic cross sections have long been observed in first-year sea ice and are frequently associated with bands of high and low brine or gas porosity. Observations on the land-fast ice near Barrow, Alaska, in recent years have revealed particularly striking banding patterns and prompted a study of their macroscopic and microscopic characteristics. The banding patterns are quantified from photographs of full-depth sections of the ice, and examples are presented from the Chukchi Sea and Elson Lagoon. Statistics on band spacing are presented, and the growth records for three seasons are employed to estimate their time of formation. These data provide insight into the periodicity of the underlying phenomena. Micrographs are used to examine the microstructural variations associated with various banding features and to quantify the geometry of the constituent brine inclusions associated with high- and low-porosity bands. The micrography revealed that the area fraction of brine inclusions varied by a factor of nearly 3 through the more pronounced high- and low-porosity bands. Vertical micrographs obtained shortly after the materials' removal from the ice sheet showed that significantly larger inclusions form abruptly at the start of the high-porosity bands and frequently terminate abruptly at the end of the band. Crystallographic observations indicated that the high-porosity bands supported the nucleation and growth of crystals having substantially different orientations from the very well aligned columnar structure that characterized the bulk of the sheet.

  10. Multiple bands characteristics of tree-ring and age of haloxylon ammodendron in gurbantunggut desert

    International Nuclear Information System (INIS)

    Song, Y.; Zhou, C.

    2015-01-01

    The characteristics of the multiple bands of Haloxylon ammodendron (C.A. Mey) Bunge tree-ring were studied in three edaphic types. Age equations were derived relating ground diameter and tree height, and the effects of irrigation on numbers and widths of growth bands at the longest radius were analyzed. Results showed that the number of growth bands ranged from 3.3 to 6.3 per year, the widths ranged between 0.181 mm and 0.473 mm. Multiple growth bands formed every growing season, leading to the conclusion that multiple growth bands in H. ammodendron tree-ring are a natural feature. A dark brown layer and a light brown one make up one growth band. The dark brown layers consists of fibres and vessels as well as some ray parenchyma, and each fibres layers with 22-35 cell layers; the light brown layers formed by vessels, fibres and abundant paratracheal axial parenchyma are 4-15 cell layers. The widths of growth bands at the longest radius increased significantly as the irrigation amount increased in three edaphic types (p<0.01). The numbers of growth bands at the longest radius had significant positive correlation with irrigation times. The ratio of dark brown layers to light brown layers of growth bands at the longest radius appeared to have a rising tendency with the increase in irrigation amount and times. (author)

  11. Noise exposure in marching bands

    Science.gov (United States)

    Keefe, Joseph

    2005-09-01

    Previous studies involving orchestras have shown that music ensembles can produce hazardous noise levels. There are no similar data for marching bands and pep bands. In order to evaluate the noise levels produced by marching and pep bands, 1/3-octave-band sound-pressure levels were measured while these groups rehearsed and performed. Data were collected while marching with the bands to ensure a realistic environment. Comparing these data to OSHA and NIOSH criteria, marching and pep band exposures often exceed safe values. For typical exposures, OSHA doses range from 11% to 295%, while NIOSH doses range from 35% to 3055%. Exposures that would be considered hazardous in the workplace are common in marching and pep bands; students and band directors should take steps to recognize the risk posed by various instruments and various locations, and should implement hearing conservation efforts.

  12. Semiconductors bonds and bands

    CERN Document Server

    Ferry, David K

    2013-01-01

    As we settle into this second decade of the twenty-first century, it is evident that the advances in micro-electronics have truly revolutionized our day-to-day lifestyle. The technology is built upon semiconductors, materials in which the band gap has been engineered for special values suitable to the particular application. This book, written specifically for a one semester course for graduate students, provides a thorough understanding of the key solid state physics of semiconductors. It describes how quantum mechanics gives semiconductors unique properties that enabled the micro-electronics revolution, and sustain the ever-growing importance of this revolution.

  13. Degenerate band edge laser

    Science.gov (United States)

    Veysi, Mehdi; Othman, Mohamed A. K.; Figotin, Alexander; Capolino, Filippo

    2018-05-01

    We propose a class of lasers based on a fourth-order exceptional point of degeneracy (EPD) referred to as the degenerate band edge (DBE). EPDs have been found in parity-time-symmetric photonic structures that require loss and/or gain; here we show that the DBE is a different kind of EPD since it occurs in periodic structures that are lossless and gainless. Because of this property, a small level of gain is sufficient to induce single-frequency lasing based on a synchronous operation of four degenerate Floquet-Bloch eigenwaves. This lasing scheme constitutes a light-matter interaction mechanism that leads also to a unique scaling law of the laser threshold with the inverse of the fifth power of the laser-cavity length. The DBE laser has the lowest lasing threshold in comparison to a regular band edge laser and to a conventional laser in cavities with the same loaded quality (Q ) factor and length. In particular, even without mirror reflectors the DBE laser exhibits a lasing threshold which is an order of magnitude lower than that of a uniform cavity laser of the same length and with very high mirror reflectivity. Importantly, this novel DBE lasing regime enforces mode selectivity and coherent single-frequency operation even for pumping rates well beyond the lasing threshold, in contrast to the multifrequency nature of conventional uniform cavity lasers.

  14. Nexen 2004 annual report

    International Nuclear Information System (INIS)

    2005-01-01

    This report contains financial information from Nexen Inc., a Calgary-based global energy and chemicals company. A review of strategies and operations was also provided, including details of new exploration and plans for growth development in Canada and internationally. Growth regions included the Athabasca oil sands; Gulf of Mexico, Middle East, offshore West Africa and the North Sea. Nexen share prices at the end of the fourth quarter rested at $58.35, up from $47.03 in 2003. Quarterly dividends increased to $0.10 per share. Net sales for 2004 were $3,176 million compared to $2,844 million in 2003. Cash flow increased 8 per cent from 2003 to $1.9 billion. The report lists major achievements of 2004. Among the achievements were the acquisition of assets in the UK North Sea and the development of the Long Lake Project. New investments in 2004 included $69 million in Offshore West Africa, $175 million in Canada with $148 million in maturing Canadian core assets. Legal proceedings pending against the company were provided. This annual report includes an auditor's report of the company's energy resource activities. An operations review was also presented along with consolidated financial statements, a summarized balance sheet of assets, liabilities/surplus and net assets, and common share information. Revenue and expenditure statements were summarized by source. A summary of government and environmental regulations affecting business was also provided. tabs., figs

  15. Deflation of gastric band balloon in pregnancy for improving outcomes.

    Science.gov (United States)

    Jefferys, Amanda E; Siassakos, Dimitrios; Draycott, Tim; Akande, Valentine A; Fox, Robert

    2013-04-30

    In line with the rise in the prevalence of obesity, an increasing number of women of childbearing age are undergoing laparoscopic adjustable gastric banding (LAGB), resulting in an increasing number of pregnancies with a band in place. Currently, there is no consensus on optimal band management in pregnancy. Some clinicians advocate leaving the band balloon inflated to reduce gestational weight gain and associated adverse perinatal outcomes. However, there are concerns that maintaining balloon inflation during pregnancy might increase the risk of band complications and adversely affect fetal development and/or growth as a result of reduced nutritional intake. To compare maternal and perinatal outcomes for elective gastric band balloon deflation versus intention to maintain balloon inflation during pregnancy. We searched the Cochrane Pregnancy and Childbirth Group's Trials Register (30 September 2012) and the Web of Science database (1940 to September 2012). Randomised-controlled trials comparing elective deflation of the gastric band balloon with intention to maintain balloon inflation in pregnant women who have undergone LAGB. Two review authors independently assessed studies for inclusion. No studies met the criteria for inclusion in the review. To date no randomised controlled trials exist that compare elective deflation of the gastric band balloon in pregnancy versus intention to maintain balloon inflation. Further research is needed to define the optimum management of the gastric band balloon in pregnancy.

  16. Wide band ENDOR spectrometer

    International Nuclear Information System (INIS)

    Mendonca Filho, C.

    1973-01-01

    The construction of an ENDOR spectrometer operating from 0,5 to 75 MHz within a single band, with ore Klystron and homodine detection, and no fundamental changes on the electron spin resonance spectrometer was described. The ENDOR signal can be detected both by amplitude modulation of the frequency field, or direct detection of the ESR output, which is taken to a signal analyser. The signal-to-noise ratio is raised by averaging rather than filtering avoiding the use of long time constants, providing natural line widths. The experimental apparatus and the spectra obtained are described. A discussion, relating the ENDOR line amplitudes with the experimental conditions is done and ENDOR mechanism, in which there is a relevant presence of cross relaxation is proposed

  17. Electronic band structure

    International Nuclear Information System (INIS)

    Grosso, G.

    1986-01-01

    The aim of this chapter is to present, in detail, some theoretical methods used to calculate electronic band structures in crystals. The basic strategies employed to attack the problem of electronic-structure calculations are presented. Successive sections present the basic formulations of the tight-binding, orthogonalized-plane-wave, Green'sfunction, and pseudopotential methods with a discussion of their application to perfect solids. Exemplifications in the case of a few selected problems provide further insight by the author into the physical aspects of the different methods and are a guide to the use of their mathematical techniques. A discussion is offered of completely a priori Hartree-Fock calculations and attempts to extend them. Special aspects of the different methods are also discussed in light of recently published related work

  18. Surviving coral bleaching events: porites growth anomalies on the Great Barrier Reef.

    Science.gov (United States)

    Cantin, Neal E; Lough, Janice M

    2014-01-01

    Mass coral bleaching affected large parts of the Great Barrier Reef (GBR) in 1998 and 2002. In this study, we assessed if signatures of these major thermal stress events were recorded in the growth characteristics of massive Porites colonies. In 2005 a suite of short (bleaching. Sites included inshore (Nelly Bay, Pandora Reef), annually affected by freshwater flood events, midshelf (Rib Reef), only occasionally affected by freshwater floods and offshore (Myrmidon Reef) locations primarily exposed to open ocean conditions. Annual growth characteristics (extension, density and calcification) were measured in 144 cores from 79 coral colonies and analysed over the common 24-year period, 1980-2003. Visual examination of the annual density bands revealed growth hiatuses associated with the bleaching years in the form of abrupt decreases in annual linear extension rates, high density stress bands and partial mortality. The 1998 mass-bleaching event reduced Porites calcification by 13 and 18% on the two inshore locations for 4 years, followed by recovery to baseline calcification rates in 2002. Evidence of partial mortality was apparent in 10% of the offshore colonies in 2002; however no significant effects of the bleaching events were evident in the calcification rates at the mid shelf and offshore sites. These results highlight the spatial variation of mass bleaching events and that all reef locations within the GBR were not equally stressed by the 1998 and 2002 mass bleaching events, as some models tend to suggest, which enabled recovery of calcification on the GBR within 4 years. The dynamics in annual calcification rates and recovery displayed here should be used to improve model outputs that project how coral calcification will respond to ongoing warming of the tropical oceans.

  19. Empowering growth in Pakistan?

    NARCIS (Netherlands)

    K.A. Siegmann (Karin Astrid); H. Majid (Hadia)

    2014-01-01

    textabstractPakistan's Vision 2025 connects a policy commitment to greater gender equality with inclusive growth. It prioritises a "good quality of life and high living standard for all citizens across regions, gender" and to "achieve an annual average growth rate of 7 to 8 per cent that is

  20. Validation of band counts in eyestalks for the determination of age of Antarctic krill, Euphausia superba.

    Directory of Open Access Journals (Sweden)

    Raouf Kilada

    Full Text Available Using known-age Antarctic krill (Euphausia superba grown from eggs hatched at two different laboratories, we validate the annual pattern of bands deposited in the eyestalks of krill and determine the absolute age of these animals. Ages two through five years were validated, and these animals ranged from 37.1 to 62.6 mm in total length. The band counts in these individuals were either identical to their absolute ages, or only failed to agree by a few months, which demonstrates the accuracy of this method. Precision and bias were estimated graphically using Chang's index (Coefficient of Variation = 5.03%. High accuracy and precision between readers and low ageing bias indicate that longitudinal sections of eyestalks can be used to age krill in wild samples and to develop age-based stock assessment models for krill. Archival samples preserved in formalin (5% and stored in ambient conditions were also readable. Ageing preserved krill will provide the opportunity to examine changes in growth among krill populations within the Southern Ocean and to retrospectively examine changes in krill production over the last century to better understand the historical and future impacts of climate change on this critical Southern Ocean species.

  1. 2014 HPC Annual Report

    Energy Technology Data Exchange (ETDEWEB)

    Jennings, Barbara [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

    2014-10-01

    Our commitment is to support you through delivery of an IT environment that provides mission value by transforming the way you use, protect, and access information. We approach this through technical innovation, risk management, and relationships with our workforce, Laboratories leadership, and policy makers nationwide. This second edition of our HPC Annual Report continues our commitment to communicate the details and impact of Sandia’s large-scale computing resources that support the programs associated with our diverse mission areas. A key tenet to our approach is to work with our mission partners to understand and anticipate their requirements and formulate an investment strategy that is aligned with those Laboratories priorities. In doing this, our investments include not only expanding the resources available for scientific computing and modeling and simulation, but also acquiring large-scale systems for data analytics, cloud computing, and Emulytics. We are also investigating new computer architectures in our advanced systems test bed to guide future platform designs and prepare for changes in our code development models. Our initial investments in large-scale institutional platforms that are optimized for Informatics and Emulytics work are serving a diverse customer base. We anticipate continued growth and expansion of these resources in the coming years as the use of these analytic techniques expands across our mission space. If your program could benefit from an investment in innovative systems, please work through your Program Management Unit ’s Mission Computing Council representatives to engage our teams.

  2. Report from the banding lab

    Science.gov (United States)

    Tautin, J.

    1995-01-01

    Mr. Tautin reported on the seemingly everchanging structure of biological science units within the Interior Department. Current Congressional proposals would either change the name of the Bird Banding Lab's parent agency or make it part of the Geological Survey. The current Congress has not looked favorably on science budgets within the Interior Department, and the Banding Lab's budget is being squeezed ever tighter.

  3. Dual-band infrared camera

    Science.gov (United States)

    Vogel, H.; Schlemmer, H.

    2005-10-01

    Every year, numerous accidents happen on European roads due to bad visibility (fog, night, heavy rain). Similarly, the dramatic aviation accidents of year 2001 in Milan and Zurich have reminded us that aviation safety is equally affected by reduced visibility. A dual-band thermal imager was developed in order to raise human situation awareness under conditions of reduced visibility especially in the automotive and aeronautical context but also for all transportation or surveillance tasks. The chosen wavelength bands are the Short Wave Infrared SWIR and the Long Wave Infrared LWIR band which are less obscured by reduced visibility conditions than the visible band. Furthermore, our field tests clearly show that the two different spectral bands very often contain complementary information. Pyramidal fusion is used to integrate complementary and redundant features of the multi-spectral images into a fused image which can be displayed on a monitor to provide more and better information for the driver or pilot.

  4. Annual ring validation of the south african sardine Sardinops sagax ...

    African Journals Online (AJOL)

    A total of 21 sardine Sardinops sagax otoliths, collected in winter and spring 1994, were examined with a scanning electron microscope to validate growth zones using daily growth increments. Increment numbers and widths for the first, second and third annual growth zones served to back-calculate hatching dates and to ...

  5. Preface. Annual Report 2004

    International Nuclear Information System (INIS)

    Siwek-Wilczynska, K.

    2005-01-01

    are still in a very preliminary stage and the information on the lifetimes in chiral bands is rather scarce. Using the beam of the Warsaw Cyclotron and the OSIRIS experimental set-up, lifetimes of the supposed chiral bands in 132 La were measured for the first time and reported in AR 2003. For precise determination of the lifetimes in 132 La the dE/dx values for the La recoils moving in the target material (Sn) have been measured. A substantial difference between the electronic stopping power obtained in our experiment and that in Ziegler's predictions was found. In this report we also present the lifetime measurements for 128 Cs, a nucleus that is also predicted to have chiral bands. Among contributions concerning experimental methods and instrumentation, I would like to mention the interesting report on the studies of the radiobiological effects caused by charged 12 C heavy ions on living cells. Thin samples were irradiated at the Warsaw Cyclotron by a horizontal beam of 120 MeV ions with uniform dose distribution at the irradiated target. Determination of the optimal doses and exposure times that yield enough mitotic cells for scoring of chromosomal aberrations is the goal of the project. As was already mentioned, most of the work presented in this Annual Report results from close collaboration with our colleagues from many foreign as well as Polish institutes and universities. In this place, I would like to express our deep gratitude to all our friends and collaborators around the world. I would also like to acknowledge the financial support of the Polish State Committee for Scientific Research (KBN). (author)

  6. 2002 annual report EDF group

    International Nuclear Information System (INIS)

    2002-01-01

    This document is the 2002 annual report of Electricite de France (EdF) group, the French electric utility. Content: Introductory section (EDF at a glance, Chairman's message, 2002 Highlights); Corporate governance and Group strategy (Corporate governance, sustainable growth strategy, EDF branches); Financial performance (Reaching critical mass, Margins holding up well, Balance sheet); Human resources (Launching Group-wide synergies, Optimising human resources); Customers (Major customers, SMEs and professional customers, Local authorities, Residential customers, Ensuring quality access to electricity); Generation (A balanced energy mix, Nuclear generation, Fossil-fuelled generation, Renewable energies); Corporate social responsibility (Global and local partnerships, Promoting community development)

  7. Annual report and accounts 1993

    International Nuclear Information System (INIS)

    1993-01-01

    The Annual Report and Accounts for 1993 are presented for the health science company Amersham International. The company's research program focuses on developments in life science research, nuclear medicine and industrial quality and safety assurance, with particular expertise in the application of radioactivity to labelling and detection at the molecular level. A review of the company's financial performance and shareholders' returns is presented. The company's strategies in its worldwide markets is explained, as are the research programmes underpinning present and future sales growth. The three main businesses are also described. (UK)

  8. Proceedings of wide band gap semiconductors

    International Nuclear Information System (INIS)

    Moustakas, T.D.; Pankove, J.I.; Hamakawa, Y.

    1992-01-01

    This book contains the proceedings of wide band gap semiconductors. Wide band gap semiconductors are under intense study because of their potential applications in photonic devices in the visible and ultraviolet part of the electromagnetic spectrum, and devices for high temperature, high frequency and high power electronics. Additionally, due to their unique mechanical, thermal, optical, chemical, and electronic properties many wide band gap semiconductors are anticipated to find applications in thermoelectric, electrooptic, piezoelectric and acoustooptic devices as well as protective coatings, hard coatings and heat sinks. Material systems covered in this symposium include diamond, II-VI compounds, III-V nitrides, silicon carbide, boron compounds, amorphous and microcrystalline semiconductors, chalcopyrites, oxides and halides. The various papers addressed recent experimental and theoretical developments. They covered issues related to crystal growth (bulk and thin films), structure and microstructure, defects, doping, optoelectronic properties and device applications. A theoretical session was dedicated to identifying common themes in the heteroepitaxy and the role of defects in doping, compensation and phase stability of this unique class of materials. Important experimental milestones included the demonstrations of bright blue injection luminescence at room temperatures from junctions based on III-V nitrides and a similar result from multiple quantum wells in a ZnSe double heterojunction at liquid nitrogen temperatures

  9. SINGLE-BAND, TRIPLE-BAND, OR MULTIPLE-BAND HUBBARD MODELS

    NARCIS (Netherlands)

    ESKES, H; SAWATZKY, GA

    1991-01-01

    The relevance of different models, such as the one-band t-J model and the three-band Emery model, as a realistic description of the electronic structure of high-T(c) materials is discussed. Starting from a multiband approach using cluster calculations and an impurity approach, the following

  10. Annual report 1973

    International Nuclear Information System (INIS)

    1973-01-01

    The GKSS scientific annual report summarizes the problems and results of the research and development projects of 1973. In contrast to earlier annual reports, a comprehensive description of the research facilities is not included. The annual report was extended by the paragraph 'Financial Report 1973' in the chapter 'Development of Geesthacht Research Centre'. The financial report gives a survey of the financial transactions and the major operations of the year under review. (orig./AK) [de

  11. NUKEM annual report 1981

    International Nuclear Information System (INIS)

    The annual report of this important undertaking in the German nuclear industry informs about its structure, holdings and activities in 1981. The report of the management is followed by remarks on the annual statement of accounts (annual balance, profit-loss accounting) and the report of the Supervisory Board. In the annex the annual balance of NUKEM GmbH/HOBEG mbH as per December 31, 1981, and the profit-loss accounting of NUKEM GmbH/HOBEG mbH for the business year 1981 are presented. (UA) [de

  12. Annual Statistical Supplement, 2002

    Data.gov (United States)

    Social Security Administration — The Annual Statistical Supplement, 2002 includes the most comprehensive data available on the Social Security and Supplemental Security Income programs. More than...

  13. Annual Statistical Supplement, 2010

    Data.gov (United States)

    Social Security Administration — The Annual Statistical Supplement, 2010 includes the most comprehensive data available on the Social Security and Supplemental Security Income programs. More than...

  14. Annual Statistical Supplement, 2007

    Data.gov (United States)

    Social Security Administration — The Annual Statistical Supplement, 2007 includes the most comprehensive data available on the Social Security and Supplemental Security Income programs. More than...

  15. Annual Statistical Supplement, 2001

    Data.gov (United States)

    Social Security Administration — The Annual Statistical Supplement, 2001 includes the most comprehensive data available on the Social Security and Supplemental Security Income programs. More than...

  16. Annual Statistical Supplement, 2016

    Data.gov (United States)

    Social Security Administration — The Annual Statistical Supplement, 2016 includes the most comprehensive data available on the Social Security and Supplemental Security Income programs. More than...

  17. Annual Statistical Supplement, 2011

    Data.gov (United States)

    Social Security Administration — The Annual Statistical Supplement, 2011 includes the most comprehensive data available on the Social Security and Supplemental Security Income programs. More than...

  18. Annual Statistical Supplement, 2005

    Data.gov (United States)

    Social Security Administration — The Annual Statistical Supplement, 2005 includes the most comprehensive data available on the Social Security and Supplemental Security Income programs. More than...

  19. Annual Statistical Supplement, 2015

    Data.gov (United States)

    Social Security Administration — The Annual Statistical Supplement, 2015 includes the most comprehensive data available on the Social Security and Supplemental Security Income programs. More than...

  20. Annual Statistical Supplement, 2003

    Data.gov (United States)

    Social Security Administration — The Annual Statistical Supplement, 2003 includes the most comprehensive data available on the Social Security and Supplemental Security Income programs. More than...

  1. Annual Statistical Supplement, 2017

    Data.gov (United States)

    Social Security Administration — The Annual Statistical Supplement, 2017 includes the most comprehensive data available on the Social Security and Supplemental Security Income programs. More than...

  2. Annual Statistical Supplement, 2008

    Data.gov (United States)

    Social Security Administration — The Annual Statistical Supplement, 2008 includes the most comprehensive data available on the Social Security and Supplemental Security Income programs. More than...

  3. Annual Statistical Supplement, 2014

    Data.gov (United States)

    Social Security Administration — The Annual Statistical Supplement, 2014 includes the most comprehensive data available on the Social Security and Supplemental Security Income programs. More than...

  4. Annual Statistical Supplement, 2004

    Data.gov (United States)

    Social Security Administration — The Annual Statistical Supplement, 2004 includes the most comprehensive data available on the Social Security and Supplemental Security Income programs. More than...

  5. Annual Statistical Supplement, 2000

    Data.gov (United States)

    Social Security Administration — The Annual Statistical Supplement, 2000 includes the most comprehensive data available on the Social Security and Supplemental Security Income programs. More than...

  6. Annual Statistical Supplement, 2009

    Data.gov (United States)

    Social Security Administration — The Annual Statistical Supplement, 2009 includes the most comprehensive data available on the Social Security and Supplemental Security Income programs. More than...

  7. Annual Statistical Supplement, 2006

    Data.gov (United States)

    Social Security Administration — The Annual Statistical Supplement, 2006 includes the most comprehensive data available on the Social Security and Supplemental Security Income programs. More than...

  8. Estimating annual bole biomass production using uncertainty analysis

    Science.gov (United States)

    Travis J. Woolley; Mark E. Harmon; Kari B. O' Connell

    2007-01-01

    Two common sampling methodologies coupled with a simple statistical model were evaluated to determine the accuracy and precision of annual bole biomass production (BBP) and inter-annual variability estimates using this type of approach. We performed an uncertainty analysis using Monte Carlo methods in conjunction with radial growth core data from trees in three Douglas...

  9. Modeling of Wide-Band-Gap Semiconductor Alloys

    National Research Council Canada - National Science Library

    Lambrecht, W

    1998-01-01

    .... The band structure and the total energy properties of LiGaO2 were studied in relation to its possible role as a substrate for GaN growth and as a model system for cation ordering on wurtzite based lattices...

  10. CIP's Eighth Annual Educational Software Contest: The Winners.

    Science.gov (United States)

    Donnelly, Denis

    1997-01-01

    Announces the winners of an annual software contest for innovative software in physics education. Winning entries include an application to help students visualize the origin of energy bands in a solid, a package on the radioastronomy of pulsars, and a school-level science simulation program. Also includes student winners, honorable mentions,…

  11. The 3 micron ice band

    International Nuclear Information System (INIS)

    Greenberg, J.M.; Bult, C.E.P.M. van de

    1984-01-01

    Ever since it was proposed that H 2 O could be a dominant constituent of interstellar grains, its detection, or lack thereof, has played a large role in theories of grains and their evolution. It now appears possible to provide a basic theoretical structure for the evolution of grains in molecular clouds based on current observational evidence and laboratory experiments on the ice band. Both band strengths and shapes can be reasonably predicted by grain models. (U.K.)

  12. Superdeformed bands in 130Ce

    International Nuclear Information System (INIS)

    Paul, E.S.; Semple, A.T.; Boston, A.J.; Joss, D.T.; Nolan, P.J.; Shepherd, S.L.

    1997-01-01

    Four superdeformed bands have been assigned to 130 Ce following a high-statistics γ-ray study using the EUROGAM II spectrometer. The strongest band exhibits two distinct backbends which, in one scenario, may be interpreted as crossings between high-j N = 6 neutron orbitals (νi 13/2 ) and low-j N = 4 orbitals (νd 3/2 ) in an unpaired system. (author)

  13. Dipole Bands in 196Hg

    International Nuclear Information System (INIS)

    Lawrie, J. J.; Lawrie, E. A.; Newman, R. T.; Sharpey-Schafer, J. F.; Smit, F. D.; Msezane, B.; Benatar, M.; Mabala, G. K.; Mutshena, K. P.; Federke, M.; Mullins, S. M.; Ncapayi, N. J.; Vymers, P.

    2011-01-01

    High spin states in 196 Hg have been populated in the 198 Pt(α,6n) reaction at 65 MeV and the level scheme has been extended. A new dipole band has been observed and a previously observed dipole has been confirmed. Excitation energies, spins and parities of these bands were determined from DCO ratio and linear polarization measurements. Possible quasiparticle excitations responsible for these structures are discussed.

  14. 1999 Annual Report

    International Nuclear Information System (INIS)

    2000-02-01

    Numac is one of Canada's top 25 oil and gas producing companies, exploring, developing and producing crude oil, natural gas and natural gas liquids in Western Canada. During 1999, Numac increased its average daily production from 25,000 BOE/day in the first quarter to 29,000 BOE/day in the fourth quarter, while reducing unit operating, general and administrative and interest costs by more than one dollar per barrel to $6.70 per BOE, a reduction of 14 per cent compared to 1998. Cash flow totalled $137.7 million, or $1.44 per share, a substantial 76 per cent improvement over the previous year. The company had net earnings of $40.4 million, which represents a 20 per cent return on equity. Long-term debt was reduced to $154.4 million at year end, with no further off-balance sheet debt. Following completion of a major non-core property divestiture program, the number of working interest wells was reduced by two thirds to 1,300 wells from 3,900 wells. In 2000, the company intends to evaluate substantial undeveloped land blocks acquired during 1999 by drilling, believing that its bread and butter development and exploitation program in core areas can provide consistent and profitable growth and reach its key objective of 12 per cent after-tax rate of return on capital projects. Approximately $145 million is earmarked for exploration and development , split equally among Numac's three core areas in Alberta. The annual report provides a detailed review of operations, management's discussion and analysis of results, consolidated financial statements and relevant supplementary information. A summary review of operations and finances covering the five year period from 1995 to 1999 is also included

  15. Annual Report, 1998

    International Nuclear Information System (INIS)

    Buettner, Herma G.; Leadbetter, Alan J.

    1999-01-01

    In this Annual Report a selection of about 30 scientific achievements are highlighted. These are intended to represent the huge range of high quality research carried out at ILL. In 1998 about 750 experiments were performed in the 225 days of reactor operation. The fields of magnetism and strongly correlated electron systems continue to be fertile and to throw up strong new growth. Remarkable new advances are coming from the applications of both existing and new neutron techniques and the development of new materials. These highlights concern superconductors, nano-magnetic particles, colossal magneto-resistance, magnetic-nuclear correlations, quantum spin systems and more. Novel magnetic measurements are also reported for a quasicrystal and on thin films of both normal and superconducting materials. Thanks to special abilities of neutrons to penetrate matter new results were obtained: following the production of novel intermetallic compounds, pressure dependence of phonon frequencies, the structure of glasses, solutions (in both bulk and thin films) and adsorbed phases; dynamics and relaxation in liquids; the confirmation of reptant motion in linear polymers, self-assembly and shear phenomena in liquid crystals. Three important results from nuclear physics are also included. These involve: fission-produced neutron-rich nuclei, weighing gamma photons in connection with the determination of fundamental constants and the determination of interatomic potentials from the slowing down process of atoms recoiling from gamma-ray emission - a direct link between nuclear and solid-state physics. The neutron experiments of importance for particle physics and biology will be reported next year

  16. Annual Report 1999

    International Nuclear Information System (INIS)

    1999-01-01

    Suncor is a Canada-based integrated oil company with over $ 5.2 billion in assets. It produces 142,800 barrels of oil equivalent per day. There are four major business areas within Suncor: (1) oil sands - produces and markets custom-blended refinery stocks and transportation fuel from its oil sands mining and upgrading facilities at Fort McMurray, Alberta; (2) the Exploration and Production arm which explores, acquires, develops and produces oil and natural gas in western Canada and markets its production throughout North America; (3) Sunoco, Suncor's refining and marketing operation, with a major refinery in Sarnia, Ontario, and a network of more than 500 retail gasoline outlets throughout the province; and (4) International oil and In-situ operations, which focus on developing heavy oil and oil shale technologies that provide unique strategic advantages to Suncor on a global basis. This report records the company's progress during the 1999 fiscal year in terms of the company's priorities for long-term growth , i.e. to expand the oil sands, transfer expertise and technology from oil sands to new businesses, integrate downstream and upstream businesses, and focus on natural gas and alternative and renewable energy. The company is fully aware of the need for sustainable development and in its oil sands operations has in place a comprehensive Greenhouse Gas Management Plan that in fact affects the entire company. The goal is to remove one tonne of carbon dioxide for every tonne of carbon dioxide released into the atmosphere through management of own emissions, pursuing greenhouse gas offsets and supporting education and research. The company has scored some notable successes in all of the target areas, details of which are provided in this annual report. A statement of the company's financial state is also included, along with the company's goals for 2000

  17. Annual Report, 1998

    Energy Technology Data Exchange (ETDEWEB)

    Buettner, Herma G; Leadbetter, Alan J [eds.; Institut Max von Laue - Paul Langevin (ILL), 38 - Grenoble (France)

    1999-11-01

    In this Annual Report a selection of about 30 scientific achievements are highlighted. These are intended to represent the huge range of high quality research carried out at ILL. In 1998 about 750 experiments were performed in the 225 days of reactor operation. The fields of magnetism and strongly correlated electron systems continue to be fertile and to throw up strong new growth. Remarkable new advances are coming from the applications of both existing and new neutron techniques and the development of new materials. These highlights concern superconductors, nano-magnetic particles, colossal magneto-resistance, magnetic-nuclear correlations, quantum spin systems and more. Novel magnetic measurements are also reported for a quasicrystal and on thin films of both normal and superconducting materials. Thanks to special abilities of neutrons to penetrate matter new results were obtained: following the production of novel intermetallic compounds, pressure dependence of phonon frequencies, the structure of glasses, solutions (in both bulk and thin films) and adsorbed phases; dynamics and relaxation in liquids; the confirmation of reptant motion in linear polymers, self-assembly and shear phenomena in liquid crystals. Three important results from nuclear physics are also included. These involve: fission-produced neutron-rich nuclei, weighing gamma photons in connection with the determination of fundamental constants and the determination of interatomic potentials from the slowing down process of atoms recoiling from gamma-ray emission - a direct link between nuclear and solid-state physics. The neutron experiments of importance for particle physics and biology will be reported next year

  18. CSIR Annual report 1965

    CSIR Research Space (South Africa)

    CSIR

    1965-01-01

    Full Text Available stream_source_info Annual Report_ 1965.pdf.txt stream_content_type text/plain stream_size 48 Content-Encoding ISO-8859-1 stream_name Annual Report_ 1965.pdf.txt Content-Type text/plain; charset=ISO-8859-1 ...

  19. CSIR Annual report 1992

    CSIR Research Space (South Africa)

    CSIR

    1992-01-01

    Full Text Available stream_source_info Annual Report_ 1992.pdf.txt stream_content_type text/plain stream_size 39 Content-Encoding ISO-8859-1 stream_name Annual Report_ 1992.pdf.txt Content-Type text/plain; charset=ISO-8859-1 ...

  20. CSIR Annual report 1979

    CSIR Research Space (South Africa)

    CSIR

    1979-01-01

    Full Text Available stream_source_info CSIR Annual report_1979.pdf.txt stream_content_type text/plain stream_size 86 Content-Encoding ISO-8859-1 stream_name CSIR Annual report_1979.pdf.txt Content-Type text/plain; charset=ISO-8859-1 ...

  1. CSIR Annual report 1976

    CSIR Research Space (South Africa)

    CSIR

    1976-01-01

    Full Text Available stream_source_info Annual Report_1976.pdf.txt stream_content_type text/plain stream_size 75 Content-Encoding ISO-8859-1 stream_name Annual Report_1976.pdf.txt Content-Type text/plain; charset=ISO-8859-1 ...

  2. CSIR Annual report 1978

    CSIR Research Space (South Africa)

    CSIR

    1978-01-01

    Full Text Available stream_source_info Annual Report_1978.pdf.txt stream_content_type text/plain stream_size 78 Content-Encoding ISO-8859-1 stream_name Annual Report_1978.pdf.txt Content-Type text/plain; charset=ISO-8859-1 ...

  3. CSIR Annual report 1991

    CSIR Research Space (South Africa)

    CSIR

    1991-01-01

    Full Text Available stream_source_info Annual Report_ 1991.pdf.txt stream_content_type text/plain stream_size 40 Content-Encoding ISO-8859-1 stream_name Annual Report_ 1991.pdf.txt Content-Type text/plain; charset=ISO-8859-1 ...

  4. Annual Partnership Report, 2016

    Science.gov (United States)

    Wyoming Community College Commission, 2016

    2016-01-01

    The "Annual Partnership Report" catalogs partnerships that Wyoming community colleges established and maintained for each fiscal year. This partnership report fulfills statutory reporting requirement W.S. 21-18-202(e)(iv) which mandates the development of annual reports to the legislature on the outcomes of partnerships between colleges…

  5. Annual Report 1997

    Energy Technology Data Exchange (ETDEWEB)

    Golnik, N.; Mika, J.R.; Wieteska, K. [eds.

    1998-12-31

    This Annual Report of the Institute of Atomic Energy describes the results of the research works carried out at the Institute at 1997. As in the preceding years the authors of the individual scientific reports published in this Annual Report are fully responsible for their content and layout. The Report contains the information on other activities of the Institute as well. (author)

  6. Annual Energy Review, 2008

    Energy Technology Data Exchange (ETDEWEB)

    None

    2009-06-01

    The Annual Energy Review (AER) is the Energy Information Administration's (EIA) primary report of annual historical energy statistics. For many series, data begin with the year 1949. Included are statistics on total energy production, consumption, trade, and energy prices; overviews of petroleum, natural gas, coal, electricity, nuclear energy, renewable energy, and international energy; financial and environment indicators; and data unit conversions.

  7. Natural gas annual 1991

    International Nuclear Information System (INIS)

    1993-01-01

    The Natural Gas Annual 1991 provides information on the supply and disposition of natural gas to a wide audience including industry, consumers Federal and State agencies, and education institutions. This report, the Natural Gas Annual 1991 Supplement: Company Profiles, presents a detailed profile of selected companies

  8. Annual Report 2001

    International Nuclear Information System (INIS)

    Swiboda, G.

    2002-01-01

    This Annual Report of the Institute of Atomic Energy describes the results of the research works carried out at the Institute at 2001. As in the preceding years the authors of the individual scientific reports published in this Annual Report are fully responsible for their content and layout. The Report contains the information on other activities of the Institute as well. (author)

  9. Annual report to Congress

    International Nuclear Information System (INIS)

    1987-01-01

    This is the ninth Annual Report to Congress of the United States Department of Energy. It covers the activities of all elements of the Department except the independent Federal Regulatory Commission, which issues its own annual report. 88 refs., 43 tabs

  10. Annual Report 1997

    International Nuclear Information System (INIS)

    Golnik, N.; Mika, J.R.; Wieteska, K.

    1998-01-01

    This Annual Report of the Institute of Atomic Energy describes the results of the research works carried out at the Institute at 1997. As in the preceding years the authors of the individual scientific reports published in this Annual Report are fully responsible for their content and layout. The Report contains the information on other activities of the Institute as well. (author)

  11. Annual Report 1997

    Energy Technology Data Exchange (ETDEWEB)

    Golnik, N; Mika, J R; Wieteska, K [eds.

    1999-12-31

    This Annual Report of the Institute of Atomic Energy describes the results of the research works carried out at the Institute at 1997. As in the preceding years the authors of the individual scientific reports published in this Annual Report are fully responsible for their content and layout. The Report contains the information on other activities of the Institute as well. (author)

  12. The impact of the 2003 summer drought on the intra-annual growth pattern of beech (Fagus sylvatica l.) and oak (Quercus robur L.) on a dry site in the Netherlands

    NARCIS (Netherlands)

    Werf, van der G.W.; Sass-Klaassen, U.; Mohren, G.M.J.

    2007-01-01

    Climate change is expected to result in more extreme weather conditions over large parts of Europe, such as the prolonged drought of 2003. As water supply is critical for tree growth on many sites in North-Western Europe, such droughts will affect growth, species competition, and forest dynamics. To

  13. Single-Band and Dual-Band Infrared Detectors

    Science.gov (United States)

    Ting, David Z. (Inventor); Gunapala, Sarath D. (Inventor); Soibel, Alexander (Inventor); Nguyen, Jean (Inventor); Khoshakhlagh, Arezou (Inventor)

    2017-01-01

    Bias-switchable dual-band infrared detectors and methods of manufacturing such detectors are provided. The infrared detectors are based on a back-to-back heterojunction diode design, where the detector structure consists of, sequentially, a top contact layer, a unipolar hole barrier layer, an absorber layer, a unipolar electron barrier, a second absorber, a second unipolar hole barrier, and a bottom contact layer. In addition, by substantially reducing the width of one of the absorber layers, a single-band infrared detector can also be formed.

  14. Adhesives for fixed orthodontic bands.

    Science.gov (United States)

    Millett, Declan T; Glenny, Anne-Marie; Mattick, Rye Cr; Hickman, Joy; Mandall, Nicky A

    2016-10-25

    Orthodontic treatment involves using fixed or removable appliances (dental braces) to correct the positions of teeth. It has been shown that the quality of treatment result obtained with fixed appliances is much better than with removable appliances. Fixed appliances are, therefore, favoured by most orthodontists for treatment. The success of a fixed orthodontic appliance depends on the metal attachments (brackets and bands) being attached securely to the teeth so that they do not become loose during treatment. Brackets are usually attached to the front and side teeth, whereas bands (metal rings that go round the teeth) are more commonly used on the back teeth (molars). A number of adhesives are available to attach bands to teeth and it is important to understand which group of adhesives bond most reliably, as well as reducing or preventing dental decay during the treatment period. To evaluate the effectiveness of the adhesives used to attach bands to teeth during fixed appliance treatment, in terms of:(1) how often the bands come off during treatment; and(2) whether they protect the banded teeth against decay during fixed appliance treatment. The following electronic databases were searched: Cochrane Oral Health's Trials Register (searched 2 June 2016), Cochrane Central Register of Controlled Trials (CENTRAL; 2016, Issue 5) in the Cochrane Library (searched 2 June 2016), MEDLINE Ovid (1946 to 2 June 2016) and EMBASE Ovid (1980 to 2 June 2016). We searched ClinicalTrials.gov and the World Health Organization International Clinical Trials Registry Platform for ongoing trials. No restrictions were placed on the language or date of publication when searching the electronic databases. Randomised and controlled clinical trials (RCTs and CCTs) (including split-mouth studies) of adhesives used to attach orthodontic bands to molar teeth were selected. Patients with full arch fixed orthodontic appliance(s) who had bands attached to molars were included. All review authors

  15. NIRE annual report 1999

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-07-01

    The National Institute for Resources and Environment (NIRE) has a R & D concept of 'ecotechnology' that aims to protect the environment from degradation whilst promoting sustainable development. This annual report presents summaries of 32 recent research efforts.

  16. ASIST 2002 annual meeting

    CERN Multimedia

    Peek, R

    2003-01-01

    Review of discussions and presentations at the American Society for Information Science and Technology 2002 annual meeting. Topics covered included new models of scholarly publishing and the development of the semantic web (1 page).

  17. SIS - Annual Catch Limit

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The Annual Catch Limit (ACL) dataset within the Species Information System (SIS) contains information and data related to management reference points and catch data.

  18. IKO Annual Report 1976

    International Nuclear Information System (INIS)

    1977-01-01

    The IKO Annual Report of 1976 relates their progress in different projects and project fields. The fields covered include electron scattering, pion and muon physics, theory, radio- and nuclear chemistry, technical department, MEA, nuclear reactions and nuclear spectroscopy

  19. Annual Adjustment Factors

    Data.gov (United States)

    Department of Housing and Urban Development — The Department of Housing and Urban Development establishes the rent adjustment factors - called Annual Adjustment Factors (AAFs) - on the basis of Consumer Price...

  20. 2002 Annual report: synthesis

    International Nuclear Information System (INIS)

    2003-01-01

    This synthesis of the Annual Report 2002 presents information of the main activities on the scope of the radiation protection and nuclear safety of the Nuclear Regulatory Authority (ARN) of the Argentina during 2002

  1. Annual report 1980

    International Nuclear Information System (INIS)

    1981-01-01

    This annual report contains a description of the named institute, the research programm, reports from the scientific establishments, a description of different cooperations, and a list of scientific publications. (HSI) [de

  2. Annual Report 1974

    International Nuclear Information System (INIS)

    1975-01-01

    This annual report supersedes the work done in the nuclear physics institute at Lyon. The studied matters are the following: nuclear theory, nuclear reactions, nuclear spectroscopy and nuclear chemistry [fr

  3. 2010 Annual Report

    Energy Technology Data Exchange (ETDEWEB)

    None

    2010-01-01

    This annual report includes: an overview of Western; approaches for future hydropower and transmission service; major achievements in FY 2010; FY 2010 customer Integrated Resource Planning, or IRP, survey; and financial data.

  4. Annual report 1990

    International Nuclear Information System (INIS)

    Gaeggeler, H.W.; Lorenzen, R.

    1991-04-01

    This annual report of the chemistry laboratory gives an overview of research performed during 1990 in the field of geochemistry, trace analysis, aerosol chemistry, heavy elements, cement chemistry and analytical chemistry. figs., tabs., refs

  5. Scientific annual report 1980

    International Nuclear Information System (INIS)

    1981-01-01

    This annual report contains a collection of the abstracts of the publications concerning research and development in the named institute together with a bibliography about further publications, contributions to conferences and speeches. (HSI) [de

  6. Annual report - LNLS - 1990

    International Nuclear Information System (INIS)

    1990-01-01

    This is the 1990 Annual Report of the LNLS, the upcoming Brazilian Synchrotron Light Source. It discusses its projects, organization as well as the proposed experimental stations. It presents also a list of publications. (A.C.A.S.)

  7. Annual report 2005

    International Nuclear Information System (INIS)

    Toncik, M.

    2006-04-01

    In this Annual report the operating of the Slovak Environmental Agency in 2005 is reported. The structure of the Agency, mission, personnel structure, financing, monitoring of the environment, international cooperation and coordination of research programmes are reviewed

  8. Annual report 2002

    International Nuclear Information System (INIS)

    Toncik, M.

    2003-04-01

    In this Annual report the operating of the Slovak Environmental Agency in 2002 is reported. Structure of the Agency, mission, personnel structure, financing, monitoring of the environment, international cooperation and coordination of research programmes are reviewed

  9. Annual report 2004

    International Nuclear Information System (INIS)

    Toncik, M.

    2005-04-01

    In this Annual report the operating of the Slovak Environmental Agency in 2004 is reported. The structure of the Agency, mission, personnel structure, financing, monitoring of the environment, international cooperation and coordination of research programmes are reviewed

  10. Annual report 2003

    International Nuclear Information System (INIS)

    Toncik, M.

    2004-04-01

    In this Annual report the operating of the Slovak Environmental Agency in 2003 is reported. The structure of the Agency, mission, personnel structure, financing, monitoring of the environment, international cooperation and coordination of research programmes are reviewed

  11. Annual report 2006

    International Nuclear Information System (INIS)

    Anon

    2007-04-01

    In this Annual report the operating of the Slovak Environmental Agency in 2006 is reported. The structure of the Agency, mission, personnel structure, financing, monitoring of the environment, international cooperation and coordination of research programmes are reviewed

  12. Annual Report 1978

    International Nuclear Information System (INIS)

    1979-01-01

    The annual report gives the specific scientific results in the fields of nuclear and radiation physics, radiation chemistry, radiochemistry and data processing with a list of publications. (orig.) [de

  13. 2000 Annual report: synthesis

    International Nuclear Information System (INIS)

    2001-01-01

    This synthesis of the Annual Report 2000 present information of the main activities on the scope of the radiation protection and nuclear safety of the Nuclear Regulatory Authority (NRA) of the Argentina during 2000

  14. 2001 Annual report: synthesis

    International Nuclear Information System (INIS)

    2001-01-01

    This synthesis of the Annual Report 2001 presents information of the main activities on the scope of the radiation protection and nuclear safety of the Nuclear Regulatory Authority (ARN) of the Argentina during 2001

  15. Annual report 2003

    International Nuclear Information System (INIS)

    2003-01-01

    Delivering products and services to nuclear power plants operators, AREVA operates in every sector of the civilian nuclear power and fuel cycle industry. This annual report 2003 provides, in seven chapters, information on persons responsible for the annual report and for auditing the financial statements, general information on the company and share capital (statute, capital, share trading, dividends), information on company operations, changes and future prospects, assets, financial position and financial performance, corporate governance, recent developments and future prospects. (A.L.B.)

  16. Annual report June 1988

    International Nuclear Information System (INIS)

    1988-01-01

    This annual report reviews the activities of the National Accelerator Centre until June 1988. The 200 MeV cyclotron facility, the Pretoria cyclotron facility and the Van De Graaff facility are discussed in detail. Aspects of the 200 MeV cyclotron facility examined are, inter alia: the injector cyclotrons, the separated-sector cyclotron, the control system, the beam transport system and radioisotope production. Separate abstracts were prepared for the various subdivisions contained in this annual report

  17. Natural gas annual 1995

    International Nuclear Information System (INIS)

    1996-11-01

    The Natural Gas Annual provides information on the supply and disposition of natural gas to a wide audience including industry, consumers, Federal and State agencies, and educational institutions. The 1995 data are presented in a sequence that follows natural gas (including supplemental supplies) from its production to its end use. This is followed by tables summarizing natural gas supply and disposition from 1991 to 1995 for each Census Division and each State. Annual historical data are shown at the national level

  18. Natural gas annual 1993

    International Nuclear Information System (INIS)

    1994-01-01

    The Natural Gas Annual provides information on the supply and disposition of natural gas to a wide audience including industry, consumers, Federal and State agencies, and educational institutions. The 1993 data are presented in a sequence that follows natural gas (including supplemental supplies) from its production to its end use. Tables summarizing natural gas supply and disposition from 1989 to 1993 are given for each Census Division and each State. Annual historical data are shown at the national level

  19. Natural gas annual 1991

    International Nuclear Information System (INIS)

    1992-01-01

    The Natural Gas Annual provides information on the supply and disposition of natural gas to a wide audience including industry, consumers, Federal and State agencies, and educational institutions. The 1991 data are presented in a sequence that follows natural gas (including supplemental supplies) from its production to its end use. Tables summarizing natural gas supply and disposition form 1987 to 1991 are given for each Census Division and each State. Annual historical data are shown at the national level

  20. 47 CFR 90.531 - Band plan.

    Science.gov (United States)

    2010-10-01

    ... 47 Telecommunication 5 2010-10-01 2010-10-01 false Band plan. 90.531 Section 90.531...-805 MHz Bands § 90.531 Band plan. This section sets forth the band plan for the 763-775 MHz and 793... and portables subject to Commission-approved regional planning committee regional plans. Transmitter...

  1. Estimating Coastal Turbidity using MODIS 250 m Band Observations

    Science.gov (United States)

    Davies, James E.; Moeller, Christopher C.; Gunshor, Mathew M.; Menzel, W. Paul; Walker, Nan D.

    2004-01-01

    Terra MODIS 250 m observations are being applied to a Suspended Sediment Concentration (SSC) algorithm that is under development for coastal case 2 waters where reflectance is dominated by sediment entrained in major fluvial outflows. An atmospheric correction based on MODIS observations in the 500 m resolution 1.6 and 2.1 micron bands is used to isolate the remote sensing reflectance in the MODIS 25Om resolution 650 and 865 nanometer bands. SSC estimates from remote sensing reflectance are based on accepted inherent optical properties of sediment types known to be prevalent in the U.S. Gulf of Mexico coastal zone. We present our findings for the Atchafalaya Bay region of the Louisiana Coast, in the form of processed imagery over the annual cycle. We also apply our algorithm to selected sites worldwide with a goal of extending the utility of our approach to the global direct broadcast community.

  2. Metaphyseal bands in osteogenesis imperfecta

    Directory of Open Access Journals (Sweden)

    Suresh S

    2010-01-01

    Full Text Available An increasing number of patients with osteogenesis imperfecta are undergoing pamidronate therapy to prevent the incidence of fragility fractures. The authors herein report a child aged 3 years who received five cycles of pamidronate, resulting in metaphyseal bands, known as "zebra lines."

  3. Metaphyseal bands in osteogenesis imperfecta

    International Nuclear Information System (INIS)

    Suresh, SS; Thomas, John K

    2010-01-01

    An increasing number of patients with osteogenesis imperfecta are undergoing pamidronate therapy to prevent the incidence of fragility fractures. The authors herein report a child aged 3 years who received five cycles of pamidronate, resulting in metaphyseal bands, known as “zebra lines.”

  4. Impacts of trapping and banding activities on productivity of Roseate Terns (Sterna Dougallii)

    Science.gov (United States)

    Zingo, James M.

    1998-01-01

    Although Roseate Terns (Sterna dougallii) habituate to many research activities, trapping and handling breeding adults, or repeatedly handling chicks, may affect reproductive success or chick growth. Protocols for trapping adult Roseate Terns that reduce the chances of nest desertion, neglect of chicks, and injury to adults were developed in the early 1980s, but neither short-term nor long-term effects of research activities on this endangered species have been fully investigated. Therefore, this study had the following main objectives: 1) examine long-term data (1978-1996) to determine if trapping activities have had a major effect on annual reproductive success of a Roseate Tern colony, 2) evaluate the effects of trapping adult terns on reproductive success and chick growth, and 3) evaluate the effects of handling chicks on their growth and survival. There were no significant correlations between measures of trapping disturbance and annual reproductive success in 1978-1996 for the Falkner Island (Stewart B. McKinney National Wildlife Refuge, Connecticut) colony, suggesting that trapping from late incubation through chick rearing using the field protocols described herein does not have a major effect on nesting success of Roseate Terns. In 1987-1996, adult trapping did not reduce prefledging survival of first-hatched chicks, and reduced survival of second-hatched chicks only in 1994 and 1995. Results of more detailed research in 1994-1996 suggest that Roseate Terns may be susceptible to trapping effects only when also faced with extreme conditions such as low food availability and/or high predation pressure. Trapping effects did not occur in most years under apparently average or typical conditions, and otherwise seem to be much less important than other factors affecting nesting success (e.g., predation and food availability). Analyses of chick growth data from 1987-1996 showed that while trapping significantly reduced early growth compared to untrapped controls

  5. Autumn raptor banding at hawk Ridge, Duluth, Minnesota USA, 1972-2009: An overview

    Science.gov (United States)

    This manuscript is targeted to a specialized audience: ornithologists who work specifically on raptors (hawks and owls). The goal of the paper is to describe the last 38 years of banding at Hawk Ridge Bird Observatory and to put out some preliminary results on species’ annual dy...

  6. Changes in seasonal climate patterns from 34-4 ka in a Soreq Cave (Israel) speleothem: Sub-annual resolution by ion microprobe and CLFM

    Science.gov (United States)

    Orland, I. J.; Bar-Matthews, M.; Kita, N.; Ayalon, A.; Valley, J. W.

    2009-12-01

    Speleothems provide an important proxy-record of paleoclimate. Isotopic data from calcite-dominated cave formations have been used to identify changes in annual rainfall, monsoon strength, telecommunication of Northern Hemisphere climate aberrations, changes in vegetation cover, and other region-specific paleoclimate time-series over annual to millennial timescales. As more research is devoted to understanding abrupt climate change events, there is a need to develop high-temporal-resolution records from continental regions. However, in most isotopic studies, seasonality information is lost due to technical limitations. This study focuses on a speleothem from the semi-arid Eastern Mediterranean region (Soreq Cave, Israel) where prior research shows that conventional drill-sampling methods permit a temporal resolution of ~10-50 years in speleothem paleoclimate records. The WiscSIMS lab has developed analytical protocols for ion microprobe analysis that yield a precision of ~0.3‰ (2 s.d.) in δ18O from 10 μm-diameter spots, which permit multiple analyses/year in many speleothems. Orland et al. (2009, Quat. Res.) establish the methodology for the current study by identifying seasonal variability using a combination of confocal laser fluorescent microscopy (CLFM) and ion microprobe analysis in a younger (~2-1 ka) Soreq speleothem that has a consistent bright-grading-to-dark fluorescence pattern within each annual band. Further, Orland et al. define a quantitative measure of seasonality, Δ18O, that measures the difference in δ18O between bright and dark fluorescent portions of individual annual growth bands [Δ18O = δ18Odark - δ18Obright]. Smaller values of Δ18O are interpreted to be caused by dry years. The current study employs the aforementioned methods to examine seasonality trends in a sample that covers a much longer time period. We report δ18O from >1000 spots across a radial traverse of Soreq Cave sample 2N matched to imaging of annual growth bands by

  7. Reassessment of spiny dogfish Squalus acanthias age and growth using vertebrae and dorsal-fin spines.

    Science.gov (United States)

    Bubley, W J; Kneebone, J; Sulikowski, J A; Tsang, P C W

    2012-04-01

    Male and female spiny dogfish Squalus acanthias were collected in the western North Atlantic Ocean in the Gulf of Maine between July 2006 and June 2009. Squalus acanthias ranged from 25 to 102 cm stretch total length and were caught during all months of the year except January. Age estimates derived from banding patterns visible in both the vertebrae and second dorsal-fin spines were compared. Vertebral growth increments were visualized using a modified histological staining technique, which was verified as appropriate for obtaining age estimates. Marginal increment analysis of vertebrae verified the increment periodicity, suggesting annual band deposition. Based on increased precision and accuracy of age estimates, as well as more biologically realistic parameters generated in growth models, the current study found that vertebrae provided a more reliable and accurate means of estimating age in S. acanthias than the second dorsal-fin spine. Age estimates obtained from vertebrae ranged from acanthias. The two-parameter von Bertalanffy growth model fit to vertebrae-derived age estimates produced parameters of L∞ = 94·23 cm and k = 0·11 for males and L∞ = 100·76 cm and k = 0·12 for females. While these growth parameters differed from those previously reported for S. acanthias in the western North Atlantic Ocean, the causes of such differences were beyond the scope of the current study and remain to be determined. © 2011 The Authors. Journal of Fish Biology © 2011 The Fisheries Society of the British Isles.

  8. Identical and shifted identical bands

    International Nuclear Information System (INIS)

    Dodder, R.S; Jones, E.F.; Hamilton, J.H.

    1997-01-01

    Spontaneous fission of 252 Cm was studied with 72 large Compton suppressed Ge detectors in Gamma sphere. New isotopes 160 Sm and 162 Gd were identified. Through X-ray-γ and γ-γ-γ) coincidence measurements, level energies were established to spins 14 + to 20 + in 152 , 154 156 60 Nd 92 94 96 , 156 , 158 , 160 62 Sm 94 , 96 , 98 , and 160 , 162 64 Gd 96 , 98 . These nuclei exhibit a remarkable variety of identical bands and bands where the energies and moments of inertia are shifted by the same constant amount for every spin state from 2 + to 12 + for various combinations of nuclei differing by 2n, 4n, 2p, 4p, and α

  9. Annual report 1976

    International Nuclear Information System (INIS)

    1977-01-01

    This annual report is the fifth issued in English from the Tandem Accelerator Laboratory in Uppsala since research was started in November 1970. It covers work performed during the calendar year 1976 and updates information given in earlier annual reports with regard to laboratory facilities such as computer configuration and layout of the experimental area. The descriptions of the research projects are also in general more detailed than usual and may sometime contain results obtained before 1976 in order to avoid too many references to earlier annual reports. It has, for instance, been thought of interest to make the sections on the study of beam foil excitation of atoms and on the measurements of nuclear deformations by the REPREC method quite extensive. (Auth.)

  10. Petroleum supply annual 1992

    International Nuclear Information System (INIS)

    1993-01-01

    The Petroleum Supply Annual (PSA) contains information on the supply and disposition of crude oil and petroleum products. The publication reflects data that were collected from the petroleum industry during 1992 through annual and monthly surveys. The PSA is divided into two volumes. The first volume contains four sections: Summary Statistics, Detailed Statistics, Refinery Capacity, and Oxygenate Capacity each with final annual data. This second volume contains final statistics for each month of 1992, and replaces data previously published in the Petroleum Supply Monthly (PSM). The tables in Volumes 1 and 2 are similarly numbered to facilitate comparison between them. Explanatory Notes, located at the end of this publication, present information describing data collection, sources, estimation methodology, data quality control procedures, modifications to reporting requirements and interpretation of tables. Industry terminology and product definitions are listed alphabetically in the Glossary

  11. Proof of concept for a banding scheme to support risk assessments related to multi-product biologics manufacturing.

    Science.gov (United States)

    Card, Jeffrey W; Fikree, Hana; Haighton, Lois A; Blackwell, James; Felice, Brian; Wright, Teresa L

    2015-11-01

    A banding scheme theory has been proposed to assess the potency/toxicity of biologics and assist with decisions regarding the introduction of new biologic products into existing manufacturing facilities. The current work was conducted to provide a practical example of how this scheme could be applied. Information was identified for representatives from the following four proposed bands: Band A (lethal toxins); Band B (toxins and apoptosis signals); Band C (cytokines and growth factors); and Band D (antibodies, antibody fragments, scaffold molecules, and insulins). The potency/toxicity of the representative substances was confirmed as follows: Band A, low nanogram quantities exert lethal effects; Band B, repeated administration of microgram quantities is tolerated in humans; Band C, endogenous substances and recombinant versions administered to patients in low (interferons), intermediate (growth factors), and high (interleukins) microgram doses, often on a chronic basis; and Band D, endogenous substances present or produced in the body in milligram quantities per day (insulin, collagen) or protein therapeutics administered in milligram quantities per dose (mAbs). This work confirms that substances in Bands A, B, C, and D represent very high, high, medium, and low concern with regard to risk of cross-contamination in manufacturing facilities, thus supporting the proposed banding scheme. Copyright © 2015 Elsevier Inc. All rights reserved.

  12. Engineering flat electronic bands in quasiperiodic and fractal loop geometries

    Energy Technology Data Exchange (ETDEWEB)

    Nandy, Atanu, E-mail: atanunandy1989@gmail.com; Chakrabarti, Arunava, E-mail: arunava_chakrabarti@yahoo.co.in

    2015-11-06

    Exact construction of one electron eigenstates with flat, non-dispersive bands, and localized over clusters of various sizes is reported for a class of quasi-one-dimensional looped networks. Quasiperiodic Fibonacci and Berker fractal geometries are embedded in the arms of the loop threaded by a uniform magnetic flux. We work out an analytical scheme to unravel the localized single particle states pinned at various atomic sites or over clusters of them. The magnetic field is varied to control, in a subtle way, the extent of localization and the location of the flat band states in energy space. In addition to this we show that an appropriate tuning of the field can lead to a re-entrant behavior of the effective mass of the electron in a band, with a periodic flip in its sign. - Highlights: • Exact construction of eigenstates with flat and dispersive bands is reported. • Competition between translational order and growth of aperiodicity is discussed. • The effect of magnetic field on the location of flat band states is shown. • Flux tunable re-entrant behavior of the effective mass of electron is studied.

  13. NCenter wide band neutrino beam

    International Nuclear Information System (INIS)

    Stutte, L.G.

    1985-01-01

    This memo describes the physical properties of the currently operating N-Center wide band neutrino beam---commonly called the triplet train, following a past tradition of a triplet lens configuration. In reality, in order to gain a larger momentum acceptance and to minimize the angular divergence of the beam, a quadruplet beam (4 lenses) employing point-to-parallel optics at a central momentum of 300 GeV was built. 6 refs., 13 figs., 1 tab

  14. [Gastric band erosion: Alternative management].

    Science.gov (United States)

    Echaverry-Navarrete, Denis José; Maldonado-Vázquez, Angélica; Cortes-Romano, Pablo; Cabrera-Jardines, Ricardo; Mondragón-Pinzón, Erwin Eduardo; Castillo-González, Federico Armando

    2015-01-01

    Obesity is a public health problem, for which the prevalence has increased worldwide at an alarming rate, affecting 1.7 billion people in the world. To describe the technique employed in incomplete penetration of gastric band where endoscopic management and/or primary closure is not feasible. Laparoscopic removal of gastric band was performed in five patients with incomplete penetrance using Foley catheterization in the perforation site that could lead to the development of a gastro-cutaneous fistula. The cases presented include a leak that required surgical lavage with satisfactory outcome, and one patient developed stenosis 3 years after surgical management, which was resolved endoscopically. In all cases, the penetration site closed spontaneously. Gastric band erosion has been reported in 3.4% of cases. The reason for inserting a catheter is to create a controlled gastro-cutaneous fistula, allowing spontaneous closure. Various techniques have been described: the totally endoscopic, hybrid techniques (endoscopic/laparoscopic) and completely laparoscopic. A technique is described here that is useful and successful in cases where the above-described treatments are not viable. Copyright © 2015. Published by Masson Doyma México S.A.

  15. Natural gas annual 1997

    International Nuclear Information System (INIS)

    1998-10-01

    The Natural Gas Annual provides information on the supply and disposition of natural gas to a wide audience including industry, consumers, Federal and State agencies, and educational institutions. The 1997 data are presented in a sequence that follows natural gas (including supplemental supplies) from its production to its end use. This is followed by tables summarizing natural gas supply and disposition from 1993 to 1997 for each Census Division and each State. Annual historical data are shown at the national level. 27 figs., 109 tabs

  16. Natural gas annual 1997

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-10-01

    The Natural Gas Annual provides information on the supply and disposition of natural gas to a wide audience including industry, consumers, Federal and State agencies, and educational institutions. The 1997 data are presented in a sequence that follows natural gas (including supplemental supplies) from its production to its end use. This is followed by tables summarizing natural gas supply and disposition from 1993 to 1997 for each Census Division and each State. Annual historical data are shown at the national level. 27 figs., 109 tabs.

  17. International energy annual 1996

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-02-01

    The International Energy Annual presents an overview of key international energy trends for production, consumption, imports, and exports of primary energy commodities in over 220 countries, dependencies, and areas of special sovereignty. Also included are population and gross domestic product data, as well as prices for crude oil and petroleum products in selected countries. Renewable energy reported in the International Energy Annual includes hydroelectric power, geothermal, solar, and wind electric power, biofuels energy for the US, and biofuels electric power for Brazil. New in the 1996 edition are estimates of carbon dioxide emissions from the consumption of petroleum and coal, and the consumption and flaring of natural gas. 72 tabs.

  18. Reliability of flipper-banded penguins as indicators of climate change.

    Science.gov (United States)

    Saraux, Claire; Le Bohec, Céline; Durant, Joël M; Viblanc, Vincent A; Gauthier-Clerc, Michel; Beaune, David; Park, Young-Hyang; Yoccoz, Nigel G; Stenseth, Nils C; Le Maho, Yvon

    2011-01-13

    In 2007, the Intergovernmental Panel on Climate Change highlighted an urgent need to assess the responses of marine ecosystems to climate change. Because they lie in a high-latitude region, the Southern Ocean ecosystems are expected to be strongly affected by global warming. Using top predators of this highly productive ocean (such as penguins) as integrative indicators may help us assess the impacts of climate change on marine ecosystems. Yet most available information on penguin population dynamics is based on the controversial use of flipper banding. Although some reports have found the effects of flipper bands to be deleterious, some short-term (one-year) studies have concluded otherwise, resulting in the continuation of extensive banding schemes and the use of data sets thus collected to predict climate impact on natural populations. Here we show that banding of free-ranging king penguins (Aptenodytes patagonicus) impairs both survival and reproduction, ultimately affecting population growth rate. Over the course of a 10-year longitudinal study, banded birds produced 41% [corrected] fewer chicks and had a survival rate 16 percentage points [corrected] lower than non-banded birds, demonstrating a massive long-term impact of banding and thus refuting the assumption that birds will ultimately adapt to being banded. Indeed, banded birds still arrived later for breeding at the study site and had longer foraging trips even after 10 years. One of our major findings is that responses of flipper-banded penguins to climate variability (that is, changes in sea surface temperature and in the Southern Oscillation index) differ from those of non-banded birds. We show that only long-term investigations may allow an evaluation of the impact of flipper bands and that every major life-history trait can be affected, calling into question the banding schemes still going on. In addition, our understanding of the effects of climate change on marine ecosystems based on flipper-band

  19. EDF group. Annual report 2001

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2002-05-01

    This document is the English version of the 2001 annual report of Electricite de France (EdF) Group, the French electric utility. It comprises 4 parts: introduction (statement of the chairman and chief executive officer, corporate governance, group key figures, sustainable growth indicators - parent company, energy for a sustainable future, EdF group worldwide); dynamics and balanced growth (financial results, EdF's strategy in building a competitive global group: consolidating the European network, moving forward in energy-related services, responding to increasing energy demand in emerging countries); sustainable solutions for all (empowering the customer: competitive solutions for industrial customers, anticipating the needs of residential customers and SMEs, environmental solutions to enhance urban life, upgrading the network and providing access to energy; a sound, sustainable and secure energy mix: a highly competitive nuclear fleet, the vital resource of fossil-fuelled plants, a proactive approach to renewable energies); a global commitment to corporate social responsibility (human resources and partnerships). (J.S.)

  20. EDF group. Annual report 2001

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2002-05-01

    This document is the English version of the 2001 annual report of Electricite de France (EdF) Group, the French electric utility. It comprises 4 parts: introduction (statement of the chairman and chief executive officer, corporate governance, group key figures, sustainable growth indicators - parent company, energy for a sustainable future, EdF group worldwide); dynamics and balanced growth (financial results, EdF's strategy in building a competitive global group: consolidating the European network, moving forward in energy-related services, responding to increasing energy demand in emerging countries); sustainable solutions for all (empowering the customer: competitive solutions for industrial customers, anticipating the needs of residential customers and SMEs, environmental solutions to enhance urban life, upgrading the network and providing access to energy; a sound, sustainable and secure energy mix: a highly competitive nuclear fleet, the vital resource of fossil-fuelled plants, a proactive approach to renewable energies); a global commitment to corporate social responsibility (human resources and partnerships). (J.S.)

  1. More on Estimation of Banded and Banded Toeplitz Covariance Matrices

    OpenAIRE

    Berntsson, Fredrik; Ohlson, Martin

    2017-01-01

    In this paper we consider two different linear covariance structures, e.g., banded and bended Toeplitz, and how to estimate them using different methods, e.g., by minimizing different norms. One way to estimate the parameters in a linear covariance structure is to use tapering, which has been shown to be the solution to a universal least squares problem. We know that tapering not always guarantee the positive definite constraints on the estimated covariance matrix and may not be a suitable me...

  2. Annual report 2000

    International Nuclear Information System (INIS)

    2001-07-01

    Article VI.J of the Agency's Statute requires the Board of Governors to submit 'an annual report to the General Conference concerning the affairs of the Agency and any projects approved by the Agency'. This report covers the period 1 January to 31 December 2000

  3. IRI annual report 1989

    International Nuclear Information System (INIS)

    1990-01-01

    In this annual report of the Dutch Interfacultary Reactor Institute, summary reports are presented of current research and teaching activities during 1989 of the departments radiochemistry, radiation chemistry, radiation physics and reactor physics, operation and maintenance of, and experiments with the Delft Hoger Onderwijs reactor, nuclear instrumentation projects and supporting services. (H.W.). 299 refs.; 2 figs.; 7 tabs

  4. Annual report 1981

    International Nuclear Information System (INIS)

    1981-12-01

    This annual report contains short descriptions of the work done at the named institute. These concern the study of hyperfine interactions, experiments with synchroton radiation, experiments at storage rings, and experiments at CERN. Furthermore, a list of publications, contributions to conferences and these is presented. (HSI) [de

  5. CSIR Annual report 1966

    CSIR Research Space (South Africa)

    CSIR

    1966-01-01

    Full Text Available This report presents the twenty second annual report of the Council for Scientific and Industrial Research. The report covers the period from the 1st January, 1966, to the 31st December 1966. Balance sheets and statements of income and expenditure...

  6. Annual Report - ESCELSA - 1997

    International Nuclear Information System (INIS)

    1998-01-01

    The annual report of ESCELSA - Brazilian electric power distribution company - introduces the following main topics: state of Espirito Santo; strategic focus; financial performance; relation with investors; energy sales; market overview; market expansion; customers; technological stream; measuring quality; electric system; investments; protecting the environment; and resource allocation

  7. Annual Conference Abstracts

    Science.gov (United States)

    Journal of Engineering Education, 1972

    1972-01-01

    Includes abstracts of papers presented at the 80th Annual Conference of the American Society for Engineering Education. The broad areas include aerospace, affiliate and associate member council, agricultural engineering, biomedical engineering, continuing engineering studies, chemical engineering, civil engineering, computers, cooperative…

  8. HASYLAB annual report 1987

    International Nuclear Information System (INIS)

    1988-01-01

    This annual report contains extended abstracts about the work performed at HASYLAB together with a list of publications, speeches, and theses. The work concerns technical developments, the study of the electronic structure of atoms, molecules, solids, surfaces, and liquids, X-ray structure studies of solids and interfaces, molecular biology, further applications of synchrotron radiation, and experimental developments. (HSI)

  9. Annual report 1996

    International Nuclear Information System (INIS)

    1996-01-01

    This annual report presents an evaluation of activities of the Entomology Unit of the FAO/IAEA Agriculture and Biotechnology Laboratory, Seibersdorf. The major themes of the report include mass rearing and quality control in Tsetse fly and research on Medfly genetic sexing strains

  10. Annual report 1999

    International Nuclear Information System (INIS)

    1999-01-01

    This annual report presents an evaluation of activities of the Entomology Unit of the FAO/IAEA Agriculture and Biotechnology Laboratory, Seibersdorf. The major themes of the report include mass rearing and quality control in Tsetse fly and research on Medfly genetic sexing strains

  11. Annual report 1997

    International Nuclear Information System (INIS)

    1997-01-01

    This annual report presents an evaluation of activities of the Entomology Unit of the FAO/IAEA Agriculture and Biotechnology Laboratory, Seibersdorf. The major themes of the report include mass rearing and quality control in Tsetse fly and research on Medfly genetic sexing strains

  12. CSIR Annual report 1968

    CSIR Research Space (South Africa)

    CSIR

    1968-01-01

    Full Text Available This report presents the twenty fourth annual report of the Council for Scientific and Industrial Research. The report covers the period from the 1st January, 1968, to the 31st December 1968. Balance sheets and statements of income and expenditure...

  13. CSIR Annual report 1971

    CSIR Research Space (South Africa)

    CSIR

    1971-01-01

    Full Text Available This report presents the twenty seventh annual report of the Council for Scientific and Industrial Research. The report covers the period from the 1st January, 1971, to the 31st December 1971. Balance sheets and statements of income and expenditure...

  14. CSIR Annual report 1970

    CSIR Research Space (South Africa)

    CSIR

    1970-01-01

    Full Text Available This report presents the twenty sixth annual report of the Council for Scientific and Industrial Research. The report covers the period from the 1st January, 1970, to the 31st December 1970. Balance sheets and statements of income and expenditure...

  15. CSIR Annual report 1969

    CSIR Research Space (South Africa)

    CSIR

    1969-01-01

    Full Text Available This report presents the twenty fifth annual report of the Council for Scientific and Industrial Research. The report covers the period from the 1st January, 1969, to the 31st December 1969. Balance sheets and statements of income and expenditure...

  16. International energy annual, 1991

    International Nuclear Information System (INIS)

    1992-12-01

    This report is prepared annually and presents the latest information and trends on world energy production and consumption for petroleum, natural gas, coal, and electricity. Trade and reserves are shown for petroleum, natural gas, and coal. Prices are included for selected petroleum products. Production and consumption data are reported in standard units as well as British thermal units (Btu) and joules

  17. Uranium industry annual 1998

    International Nuclear Information System (INIS)

    1999-01-01

    The Uranium Industry Annual 1998 (UIA 1998) provides current statistical data on the US uranium industry's activities relating to uranium raw materials and uranium marketing. It contains data for the period 1989 through 2008 as collected on the Form EIA-858, ''Uranium Industry Annual Survey.'' Data provides a comprehensive statistical characterization of the industry's activities for the survey year and also include some information about industry's plans and commitments for the near-term future. Data on uranium raw materials activities for 1989 through 1998, including exploration activities and expenditures, EIA-estimated reserves, mine production of uranium, production of uranium concentrate, and industry employment, are presented in Chapter 1. Data on uranium marketing activities for 1994 through 2008, including purchases of uranium and enrichment services, enrichment feed deliveries, uranium fuel assemblies, filled and unfilled market requirements, and uranium inventories, are shown in Chapter 2. The methodology used in the 1998 survey, including data edit and analysis, is described in Appendix A. The methodologies for estimation of resources and reserves are described in Appendix B. A list of respondents to the ''Uranium Industry Annual Survey'' is provided in Appendix C. The Form EIA-858 ''Uranium Industry Annual Survey'' is shown in Appendix D. For the readers convenience, metric versions of selected tables from Chapters 1 and 2 are presented in Appendix E along with the standard conversion factors used. A glossary of technical terms is at the end of the report. 24 figs., 56 tabs

  18. KTA annual report 1980

    International Nuclear Information System (INIS)

    The annual report gives an overview of the rulemaking work in the individual fields as well as other activities, such as meetings, international codes of rules, and publications. KTA organization, including its administration and funds is listed. (orig./HP) [de

  19. IRI annual report 1989

    International Nuclear Information System (INIS)

    1990-01-01

    In this annual report of the Dutch Interfacultary Reactor Institute, summary reports are presented of current research and teaching activities during 1989 of the departments radiochemistry, radiation chemistry, radiation physics and reactor physics, operation and maintenance of, and experiments with the Delft Hoger Onderwijs reactor, nuclear instrumentation projects and supporting services. (H.W.). 145 refs.; 20 figs.; 4 fotos; 2 tabs

  20. Annual report 1981

    International Nuclear Information System (INIS)

    1982-01-01

    In this annual report the work done at the named Institute is described. This concerns particle and fields in the solar system, infrared astronomy, X-ray astronomy, γ-astronomy, and molecule spectroscopy. A list of publications is added. (HSI)

  1. ANCLI annual report 2003

    International Nuclear Information System (INIS)

    2003-01-01

    The National Association for the Information Local Commissions (ANCLI) was created in september 1999. This association aims to develop an exchange and information network for the information local commissions. In this framework it develops information sheets, Internet site, nuclear centers visits, colloquium and formations organizations. This report presents the annual activities for the year 2003. (A.L.B.)

  2. ANCLI annual report 2004

    International Nuclear Information System (INIS)

    2004-01-01

    The National Association for the Information Local Commissions (ANCLI) was created in september 1999. This association aims to develop an exchange and information network for the information local commissions. In this framework it develops information sheets, Internet site, nuclear centers visits, colloquium and formations organizations. This report presents the annual activities for the year 2004. (A.L.B.)

  3. Annual Report 2008

    Energy Technology Data Exchange (ETDEWEB)

    Keeley, N; Skalski, J [The Andrzej Soltan Institute for Nuclear Studies, Swierk-Otwock (Poland)

    2009-07-01

    The ''Annual Report 2008'' describes activities of Andrzej Soltan Institute for Nuclear Studies in 2008. Report consists of two parts. First one consists of general information about location, management, scientific council, personnel, financial support and conferences while the second one describes the scientific activity of Institute. A Foreword to all report written by Director of the Institute prof. Grzegorz Wrochna is also given.

  4. TIARA annual report 2004

    International Nuclear Information System (INIS)

    Ohara, Yoshihiro; Arakawa, Kazuo; Tanaka, Shigeru; Narumi, Kazumasa; Yoshida, Masaru; Itoh, Hisayoshi; Yoshikawa, Masato; Tanaka, Atsushi; Kobayashi, Yasuhiko; Fukuda, Mitsuhiro; Otsubo, Michiro; Yokota, Watalu; Nakamura, Yoshiteru

    2006-01-01

    This annual report describes research and development activities which have been performed with the TIARA (Takasaki Ion Accelerators for Advanced Radiation Application) facilities from April 1, 2004 to March 31, 2005. The 126 of the presented papers are indexed individually. A list of publications, the type of research collaborations and organization of TIARA are also given as appendices. (J.P.N.)

  5. Annual Report 2000

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-07-01

    The Institut Laue-Langevin (ILL) is an international research center using neutrons to probe the microscopic structure and dynamics of a broad range of materials. This annual report presents the ILL activities in 2000: the scientific highlights, the Millennium programme and the new developments, the workshops organized by the ILL, the experimental programme and the publications. (A.L.B.)

  6. International Energy Annual, 1992

    Energy Technology Data Exchange (ETDEWEB)

    1994-01-14

    This report is prepared annually and presents the latest information and trends on world energy production and consumption for petroleum, natural gas, coal, and electricity. Trade and reserves are shown for petroleum, natural gas, and coal. Prices are included for selected petroleum products. Production and consumption data are reported in standard units as well as British thermal units (Btu) and joules.

  7. ANCLI annual report 2002

    International Nuclear Information System (INIS)

    2002-01-01

    The National Association for the Information Local Commissions (ANCLI) was created in september 1999. This association aims to develop an exchange and information network for the information local commissions. In this framework it develops information sheets, Internet site, nuclear centers visits, colloquium and formations organizations. This report presents the annual activities for the year 2002. (A.L.B.)

  8. Annual General Meetings

    OpenAIRE

    2009-01-01

    We have produced this information booklet to explain why companies must – by law – hold an Annual General Meeting (AGM). The laws which cover AGMs are known as the Companies Acts. This guide gives only a summary of the rules for AGMs. If you have a concern about the AGM of a particular company, you should get independent legal advice.

  9. Annual report 1981, annex

    International Nuclear Information System (INIS)

    1982-01-01

    This volume entitled ''Annex to the annual report'' deals in more detail with the scientific works of the I.L.L.: the scientific activity of theoricians; experimental reports on inelastic scattering in simple solids, crystallographic and magnetic structures, fluids and amorphous substances, imperfections, biology, chemistry

  10. Annual report 1997

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-07-01

    This annual report presents an evaluation of activities of the Entomology Unit of the FAO/IAEA Agriculture and Biotechnology Laboratory, Seibersdorf. The major themes of the report include mass rearing and quality control in Tsetse fly and research on Medfly genetic sexing strains.

  11. Annual Report 2006

    International Nuclear Information System (INIS)

    Gawlikowicz, W.; Pienkowski, L.

    2007-03-01

    The Annual Report of the Heavy Ion Laboratory, Warsaw University describes the activities of Laboratory in 2006. The document consist of four parts: 'Laboratory Overview', 'Experiments and Experimental Set-ups', 'Experiments Using the Outside Facilities' and 'General Information on HIL Activities'. An 'Introduction' written by director of the Department prof. J. Jastrzebski is also given

  12. Annual report 1995

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-10-01

    The annual report from IKU (Continental Shelf Institute) in Norway deals with the market adjustment of research activities at the institute as a result of offshore cost-cutting policy in the petroleum industry. The market is about to shift focus from volume to competence. In practice, that means buying competence instead of project ideas or proposals

  13. BAM - Annual report 1975

    International Nuclear Information System (INIS)

    1976-06-01

    The annual report contains progress and activity reports of the presidential department, the departments metals and metal construction, civil engineering and building activities, organic matter, chemical safety engineering, special fields of materials testing, techniques independent of the type of material, an index, as well as general and statistic statements. (HK) [de

  14. Annual report - ENERSUL - 1999

    International Nuclear Information System (INIS)

    2000-01-01

    The annual report of ENERSUL - Brazilian electric power distribution company - introduces the following main topics: Outlook for the State of Mato Grosso do Sul; strategic focus; financial performance; relation with investors; energy sold; capacity increases; customers; customers; energy balance; performance and quality; electric system; investments; people; human resources; synergies; awards; workplace safety; social balance; and patrimonial balance

  15. 2001 annual report

    International Nuclear Information System (INIS)

    2002-01-01

    This document is the 2001 annual report of the French union of the petroleum industry (UFIP). It summarizes the highlights of the petroleum industry activity in France in 2001 and gives some additional information about the production, refining and distribution of petroleum products in the rest of the world. (J.S.)

  16. Annual Report 2007

    International Nuclear Information System (INIS)

    Zielinska, M.; Gawlikowicz, W.

    2008-03-01

    The Annual Report of the Heavy Ion Laboratory, Warsaw University describes the activities of Laboratory in 2007. The document consist of four parts: '' Laboratory Overview '', '' Experiments and Experimental Set-ups '', '' Experiments Using the Outside Facilities '' and '' General Information on HIL Activities ''. An '' Introduction '' written by director of the Department prof. J. Jastrzebski is also given

  17. International Energy Annual, 1992

    International Nuclear Information System (INIS)

    1994-01-01

    This report is prepared annually and presents the latest information and trends on world energy production and consumption for petroleum, natural gas, coal, and electricity. Trade and reserves are shown for petroleum, natural gas, and coal. Prices are included for selected petroleum products. Production and consumption data are reported in standard units as well as British thermal units (Btu) and joules

  18. 2010 AAUW Annual Report

    Science.gov (United States)

    American Association of University Women, 2010

    2010-01-01

    This report highlights some of the outstanding accomplishments of AAUW (American Association of University Women) for fiscal year 2010. This year's annual report also features stories of remarkable women who are leading the charge to break through barriers and ensure that all women have a fair chance. Sharon is working to reduce the pay gap…

  19. Annual report - ESCELSA - 1999

    International Nuclear Information System (INIS)

    2000-01-01

    The annual report of 1999 of ESCELSA - Brazilian electric power company - introduces the next main topics: state of Espirito Santo; strategic focus; financial performance; relation with investors; energy sales; customers; quality; electric system; investments; people; resources; synergies; awards; outlook; social balancing; and patrimonial balancing

  20. IKF annual report 1988

    International Nuclear Information System (INIS)

    1989-01-01

    The annual report of 1988 gives a survey of the following category of themes: nuclear physics, atom physics, nuclear methods, nuclear solid-state physics and developments of machines. Apart from the use of its own Van de Graaff accelerators the institute takes part in joint ventures in research, for example with the GSI (Association for Heavy-Ion Research) in Darmstadt. (DG) [de

  1. Annual Report 2005

    International Nuclear Information System (INIS)

    Zielinska, M.; Gawlikowicz, W.; Pienkowski, L.

    2006-05-01

    The Annual Report of the Heavy Ion Laboratory, Warsaw University describes the activities of Laboratory in 2005. The document consist of four parts: Laboratory Overview, Experiments and Experimental Set-ups, Experiments Using the Outside Facilities and General Information on HIL Activities. An Introduction written by director of the Department prof. J. Jastrzebski is also given

  2. KVI Annual Report 1982

    International Nuclear Information System (INIS)

    1983-04-01

    This annual report offers 93 informative descriptions of the current research projects at the KVI cyclotron during 1982. The projects are classed under the following heads: elastic and inelastic scattering; giant resonances; transfer and charge exchange reactions; breakup reactions; heavy ion reactions; electromagnetic and weak interactions; theoretical nuclear physics; atomic physics; nuclear solid state physics; cyclotron, computers and instrumentation; nuclear medicine; environmental studies. (Auth.)

  3. NERSC Annual Report 2004

    Energy Technology Data Exchange (ETDEWEB)

    Hules, John; Bashor, Jon; Yarris, Lynn; McCullough, Julie; Preuss, Paul; Bethel, Wes

    2005-04-15

    The National Energy Research Scientific Computing Center (NERSC) is the premier computational resource for scientific research funded by the DOE Office of Science. The Annual Report includes summaries of recent significant and representative computational science projects conducted on NERSC systems as well as information about NERSC's current and planned systems and services.

  4. Annual report 1979

    International Nuclear Information System (INIS)

    1979-12-01

    In this annual report the work done at the named institute is described. This concerns experiments with synchrotron radiations, high energy physics experiments at the PETRA and DORIS storage rings, studies of MFS interactions, and some neutrino experiments at CERN. A list of publications is included. (HSI)

  5. Annual Report 2000

    International Nuclear Information System (INIS)

    2000-01-01

    The Institut Laue-Langevin (ILL) is an international research center using neutrons to probe the microscopic structure and dynamics of a broad range of materials. This annual report presents the ILL activities in 2000: the scientific highlights, the Millennium programme and the new developments, the workshops organized by the ILL, the experimental programme and the publications. (A.L.B.)

  6. Total 2004 annual report

    International Nuclear Information System (INIS)

    2004-01-01

    This annual report of the Group Total brings information and economic data on the following topics, for the year 2004: the corporate governance, the corporate social responsibility, the shareholder notebook, the management report, the activities, the upstream (exploration and production) and downstream (refining and marketing) operating, chemicals and other matters. (A.L.B.)

  7. NERSC Annual Report 2002

    Energy Technology Data Exchange (ETDEWEB)

    Hules, John

    2003-01-31

    The National Energy Research Scientific Computing Center (NERSC) is the primary computational resource for scientific research funded by the DOE Office of Science. The Annual Report for FY2002 includes a summary of recent computational science conducted on NERSC systems (with abstracts of significant and representative projects), and information about NERSC's current and planned systems and service

  8. Annual results 2004

    International Nuclear Information System (INIS)

    2005-01-01

    This 2004 annual evaluation of the french RTE company (electric power transport network) provides information on the 2004 results on: institutional information, financial results, customers and market, industrial resources, environment and consultation, human resources and international aspects. (A.L.B.)

  9. Annual report SNET 2003

    International Nuclear Information System (INIS)

    2004-01-01

    This annual report of the SNET (National Society of Electricity and thermic) presents the society activities and the financial report for the year 2003. The society position in the market, the environmental policy, the performance, the workers and financial data are detailed. (A.L.B.)

  10. Environment annual report 1993

    International Nuclear Information System (INIS)

    1994-01-01

    In the 1993 Environment Annual Report for BNFL, data are presented for radioactive discharges to the environment and their associated doses to the criteria group members of the public in the vicinity of Sellafield, Drigg, Chapelcross, Springfields and Capenhurst. Similarly, data are also presented for non-radioactive discharges to water and air for each site. (UK)

  11. NUFFIC Annual Report, 1977.

    Science.gov (United States)

    Netherlands Universities Foundation for International Co-operation, The Hague.

    The 1977 annual report of the Netherlands Universities Foundation for International Cooperation (NUFFIC) considers the following topics: major developments in work and policy; relationships NUFFIC has with other organizations; University Development Cooperation; developments in international education; the functioning of the Consultative Structure…

  12. CSIR Annual report 1967

    CSIR Research Space (South Africa)

    CSIR

    1967-01-01

    Full Text Available This report presents the twenty third annual report of the Council for Scientific and Industrial Research. The report covers the period from the 1st January, 1967, to the 31st December 1967. Balance sheets and statements of income and expenditure...

  13. Annual report 1982. Annex

    International Nuclear Information System (INIS)

    This is the scientific annual report 1982 of the ILL on R and D activities of the different colleges: fundamental and nuclear physics, inelastic scattering in simple solids, crystallographic and magnetic structures, fluids and amorphous substances, imperfections, biology, chemistry, theory. Abstracts of the publications published during the year are presented

  14. CSIR Annual report 1980

    CSIR Research Space (South Africa)

    CSIR

    1980-01-01

    Full Text Available This report presents the thirty-sixth annual report of the CSIR. The report covers the period 1 January, 1980 to 31 December 1980. A balance sheet and statements of income and expenditure for the financial year ended 31st March 1980, certified...

  15. NRCC annual report, 1979

    International Nuclear Information System (INIS)

    1980-11-01

    This annual report of the National Research for Computation in Chemistry (NRCC) Division describes the program of research workshops, software development, and scientific research of the Division in 1979. This year marked the first full calendar year of activity of the Division. Initial staffing in the core scientific areas was completed by the addition of a crystallographer

  16. GKSS annual report 1983

    International Nuclear Information System (INIS)

    1984-01-01

    This annual report reviews the structure and activities of the GKSS in 1983. R and D work was done on reactor safety engineering, environmental research/environmental engineering and underwater technology. It also reports on cooperation with outside partners, the organization, financing, and developments in the staff structure as well as on publications, lectures, applications for patents, etc. (UA) [de

  17. NERSC Annual Report 2005

    Energy Technology Data Exchange (ETDEWEB)

    Hules (Ed.), John

    2006-07-31

    The National Energy Research Scientific Computing Center (NERSC) is the premier computational resource for scientific research funded by the DOE Office of Science. The Annual Report includes summaries of recent significant and representative computational science projects conducted on NERSC systems as well as information about NERSC's current and planned systems and services.

  18. ELETRONUCLEAR - Annual report - 1997

    International Nuclear Information System (INIS)

    1998-01-01

    The annual activities report of 1997 of ELETRONUCLEAR - Brazilian company responsible by the electric power generation from the nuclear technology - introduces the next main topics: company vision and mission; energy production and commercialization; investments in the electric power generation; economic and financial situation; social balancing; and patrimonial balancing

  19. Mail Office annual closure

    CERN Multimedia

    2013-01-01

    On the occasion of the annual closure of CERN, there will be no mail distributed on Friday 20 December 2013 but mail will be collected in the morning. Nevertheless, you will still be able to bring your outgoing mail to Building 555-R-002 until 12 noon.  

  20. PTB annual report 1985

    International Nuclear Information System (INIS)

    1986-02-01

    The annual report presents general information on the institution's activities and the various departments, and reports on scientific work in the field of metrology and safety engineering. Brief scientific accounts refer to work in the domains of mechanics and acoustics, electricity, heat, optics, industrial metrology, atomic physics, technical and scientific services, collection and disposal of radioactive waste. (DG) [de

  1. Annual Report 2004

    International Nuclear Information System (INIS)

    Swiboda, G.

    2005-01-01

    The Annual Report of the Institute of Atomic Energy describes the results of the research activities carried out in 2004. The document consist of seven parts: General Information; Operation and safety of MARIA reactor; Radiological protection and monitoring of environment; Nuclear techniques in health and environment protection and in last section the list of published in 2004 papers is presented

  2. NIKHEF Annual Report 1982

    International Nuclear Information System (INIS)

    1983-01-01

    In this annual report 1982, the NIKHEF research programs of high-energy physics, nuclear physics and radiochemistry is described in a wide context. Next, the reports of the individual projects of section-H and section-K are described in detail. Finally, the report gives some statistical information of publications, colloquia and co-workers. (Auth.)

  3. Annual report 1987

    International Nuclear Information System (INIS)

    1988-01-01

    In this annual report of the Dutch Interfacultary Reactor Institute, summary and detailed reports are presented of current research during 1987 of the departments radiochemistry, radiation chemistry, radiation physics and reactor physics. (H.W.). 61 refs.; 13 figs.; 14 tabs

  4. NIKHEF Annual Report 1981

    International Nuclear Information System (INIS)

    1982-01-01

    This annual report presents the activities of the Dutch National Institute for Nuclear and High Energy Physics (NIKHEF) during its first year. Following a general introduction to the research areas in which NIKHEF is involved, 29 brief reports from the project groups are presented. Details concerning personnel, participation in councils and committees, finances, publications, colloquia and participation in congresses and schools are included. (Auth.)

  5. Annual Report 2010

    International Nuclear Information System (INIS)

    Palacz, M.; Zielinska, M.

    2011-06-01

    The Annual Report of the Heavy Ion Laboratory, University of Warsaw describes the activities of Laboratory in 2010. The document consist of four parts: '' Laboratory Overview '', '' Experiments at HIL '', '' Experiments Using the Outside Facilities '' and '' Appendices '' where general information on HIL activities are described. An '' Introduction '' written by director of the Heavy Ion Laboratory prof. K. Rusek is also given.

  6. CSIR Annual report 1962

    CSIR Research Space (South Africa)

    CSIR

    1962-01-01

    Full Text Available This report presents the eighteenth annual report of the CSIR. The report covers the period 1 January, 1962 to 31 December 1962. A balance sheet and statements of income and expenditure for the financial year ended 31st March 1962, certified...

  7. CSIR Annual report 1983

    CSIR Research Space (South Africa)

    CSIR

    1983-01-01

    Full Text Available This report presents the thirty ninth annual report of the CSIR. The report covers the period 1 January, 1983 to 31 December 1983. A balance sheet and statements of income and expenditure for the financial year ended 31st March 1983, certified...

  8. CSIR Annual report 1981

    CSIR Research Space (South Africa)

    CSIR

    1981-01-01

    Full Text Available This report presents the thirty seventh annual report of the CSIR. The report covers the period 1 January, 1981 to 31 December 1981. A balance sheet and statements of income and expenditure for the financial year ended 31st March 1981, certified...

  9. CSIR Annual report 1982

    CSIR Research Space (South Africa)

    CSIR

    1982-01-01

    Full Text Available This report presents the thirty eighth annual report of the CSIR. The report covers the period 1 January, 1982 to 31 December 1982. A balance sheet and statements of income and expenditure for the financial year ended 31st March 1982, certified...

  10. CSIR Annual report 1963

    CSIR Research Space (South Africa)

    CSIR

    1963-01-01

    Full Text Available This report presents the nineteenth annual report of the Council for Scientific and Industrial Research. The report covers the period from the 1st January, 1963, to the 31st December 1963. Balance sheets and statements of income and expenditure...

  11. Sustainability Annual Report 2013

    OpenAIRE

    2013-01-01

    Every year, Virginia Tech releases a sustainability annual report to show the university’s progress in meeting the sustainability goals. The key sustainability metrics these reports cover include: greenhouse gas (GHG) emissions, energy use intensity, alternative transportation use, recycling, and water consumption.

  12. Sustainability Annual Report 2014

    OpenAIRE

    2014-01-01

    Every year, Virginia Tech releases a sustainability annual report to show the university’s progress in meeting the sustainability goals. The key sustainability metrics these reports cover include: greenhouse gas (GHG) emissions, energy use intensity, alternative transportation use, recycling, and water consumption.

  13. Sustainability Annual Report 2017

    OpenAIRE

    2017-01-01

    Every year, Virginia Tech releases a sustainability annual report to show the university’s progress in meeting the sustainability goals. The key sustainability metrics these reports cover include: greenhouse gas (GHG) emissions, energy use intensity, alternative transportation use, recycling, and water consumption.

  14. Sustainability Annual Report 2011

    OpenAIRE

    2011-01-01

    Every year, Virginia Tech releases a sustainability annual report to show the university’s progress in meeting the sustainability goals. The key sustainability metrics these reports cover include: greenhouse gas (GHG) emissions, energy use intensity, alternative transportation use, recycling, and water consumption.

  15. Sustainability Annual Report 2012

    OpenAIRE

    2012-01-01

    Every year, Virginia Tech releases a sustainability annual report to show the university’s progress in meeting the sustainability goals. The key sustainability metrics these reports cover include: greenhouse gas (GHG) emissions, energy use intensity, alternative transportation use, recycling, and water consumption.

  16. Sustainability Annual Report 2015

    OpenAIRE

    2015-01-01

    Every year, Virginia Tech releases a sustainability annual report to show the university’s progress in meeting the sustainability goals. The key sustainability metrics these reports cover include: greenhouse gas (GHG) emissions, energy use intensity, alternative transportation use, recycling, and water consumption.

  17. Sustainability Annual Report 2016

    OpenAIRE

    2016-01-01

    Every year, Virginia Tech releases a sustainability annual report to show the university’s progress in meeting the sustainability goals. The key sustainability metrics these reports cover include: greenhouse gas (GHG) emissions, energy use intensity, alternative transportation use, recycling, and water consumption.

  18. Annual Report 2008

    International Nuclear Information System (INIS)

    Keeley, N.; Skalski, J.

    2009-01-01

    The ''Annual Report 2008'' describes activities of Andrzej Soltan Institute for Nuclear Studies in 2008. Report consists of two parts. First one consists of general information about location, management, scientific council, personnel, financial support and conferences while the second one describes the scientific activity of Institute. A Foreword to all report written by Director of the Institute prof. Grzegorz Wrochna is also given

  19. High macro rubber band ligature

    Directory of Open Access Journals (Sweden)

    José A. Reis Neto

    2013-07-01

    Full Text Available Purpose: The goal of a rubber band ligature is to promote fibrosis of the submucosa with subsequent fixation of the anal epithelium to the underlying sphincter. Following this principle, a new technique of ligature was developed based on two aspects: 1. macro banding: to have a better fibrosis and fixation by banding a bigger volume of mucosa and 2. higher ligature: to have this fixation at the origin of the hemorrhoidal cushion displacement. Methods: 1634 patients with internal hemorrhoidal disease grade II or III were treated by the technique called high macro rubber band. There was no distinction as to age, gender or race. To perform this technique a new hemorrhoidal device was specially designed with a larger diameter and a bigger capacity for mucosal volume aspiration. It is recommended to utilize a longer and wider anoscope to obtain a better view of the anal canal, which will facilitate the injection of submucosa higher in the anal canal and the insertion of the rubber band device. The hemorrhoidal cushion must be banded higher in the anal canal (4 cm above the pectinate line. It is preferable to treat all the hemorrhoids in one single session (maximum of three areas banded. Results: The analysis was retrospective without any comparison with conventional banding. The period of evaluation extended from one to twelve years. The analysis of the results showed perianal edema in 1.6% of the patients, immediate tenesmus in 0.8%, intense pain (need for parenteral analgesia in 1.6%, urinary retention in 0.1% of the patients and a symptomatic recurrence rate of 4.2%. All patients with symptomatic recurrence were treated with a new session of macro rubber banding. None of the patients developed anal or rectal sepsis. Small post-ligature bleeding was observed only in 0.8% of the patients. Conclusions: The high macro rubber banding technique represents an alternative method for the treatment of hemorrhoidal disease grades II or III, with good

  20. Carbon-14 activity of fallout in Araucaria angustifolia annual growth rings, from Arapoti, Parana State, Brazil; Atividade de {sup 14} C do 'fallout' em aneis anuais de crescimento de Araucaria angustifolia, de Arapoti - PR

    Energy Technology Data Exchange (ETDEWEB)

    Lisi, Claudio Sergio; Pessenda, Luiz Carlos Ruiz [Centro de Energia Nuclear na Agricultura (CENA), Piracicaba, SP (Brazil). Lab. de 14 C; Tomazello Filho, Mario [Escola Superior de Agricultura Luiz de Queiroz, Piracicaba, SP (Brazil). Dept. de Ciencias Florestais. Lab. de Dendrocronologia

    2000-07-01

    During the period of nuclear tests between 1950 and 1960, an input of artificial {sup 14} C (fallout effect) occurred in the natural reservoirs. {sup 14} C determinations in the Northern Hemisphere showed values of {delta}{sup 14} C up to 960 in the year of 1964. To determine the fallout {sup 14} C activity in Brazil, wood samples from Araucaria angustifolia (Bert.) O. Kuntze, Araucariaceae, were collected in Arapoti-PR (24 deg 11{sup S}, 49 deg 58{sup O}). The annual tree rings were selected by dendrochronology. The cellulose was extracted and its {sup 14} C activity determined by liquid scintillation method. The results showed a significant increase of the {delta} {sup 14} C up to 590 in 1965, about 60% higher than the natural activity, gradually decreasing after the end of nuclear tests. These results were correlated with those obtained in the Northen Hemisphere and will be used in the studies of CO{sub 2} mechanisms distribuition to the atmosphere and other natural reservoirs. (author)

  1. Rapid population growth.

    Science.gov (United States)

    1972-01-01

    At the current rate of population growth, world population by 2000 is expected to reach 7 billion or more, with developing countries accounting for some 5.4 billion, and economically advanced nations accounting for 1.6 billion. 'Population explosion' is the result of falling mortality rates and continuing high birth rates. Many European countries, and Japan, have already completed what is termed as demographic transition, that is, birth rates have fallen to below 20 births per 1000 population, death rates to 10/1000 population, and annual growth rates are 1% or less; annual growth rates for less developed countries ranged from 2 to 3.5%. Less developed countries can be divided into 3 groups: 1) countries with both high birth and death rates; 2) countries with high birth rates and low death rates; and 3) countries with intermediate and declining birth rates and low death rates. Rapid population growth has serious economic consequences. It encourages inequities in income distribution; it limits rate of growth of gross national product by holding down level of savings and capital investments; it exerts pressure on agricultural production and land; and it creates unemployment problems. In addition, the quality of education for increasing number of chidren is adversely affected, as high proportions of children reduce the amount that can be spent for the education of each child out of the educational budget; the cost and adequacy of health and welfare services are affected in a similar way. Other serious consequences of rapid population growth are maternal death and illness, and physical and mental retardation of children of very poor families. It is very urgent that over a billion births be prevented in the next 30 years to reduce annual population growth rate from the current 2% to 1% per year.

  2. Band Subset Selection for Hyperspectral Image Classification

    Directory of Open Access Journals (Sweden)

    Chunyan Yu

    2018-01-01

    Full Text Available This paper develops a new approach to band subset selection (BSS for hyperspectral image classification (HSIC which selects multiple bands simultaneously as a band subset, referred to as simultaneous multiple band selection (SMMBS, rather than one band at a time sequentially, referred to as sequential multiple band selection (SQMBS, as most traditional band selection methods do. In doing so, a criterion is particularly developed for BSS that can be used for HSIC. It is a linearly constrained minimum variance (LCMV derived from adaptive beamforming in array signal processing which can be used to model misclassification errors as the minimum variance. To avoid an exhaustive search for all possible band subsets, two numerical algorithms, referred to as sequential (SQ and successive (SC algorithms are also developed for LCMV-based SMMBS, called SQ LCMV-BSS and SC LCMV-BSS. Experimental results demonstrate that LCMV-based BSS has advantages over SQMBS.

  3. The DSS-14 C-band exciter

    Science.gov (United States)

    Rowan, D. R.

    1989-01-01

    The development and implementation of a C-band exciter for use with the Block IV Receiver-Exciter Subsystem at Deep Space Station 14 (DSS-14) has been completed. The exciter supplements the standard capabilities of the Block IV system by providing a drive signal for the C-band transmitter while generating coherent translation frequencies for C-band (5-GHz) to S-band (2.2- to 2.3-GHz) Doppler extraction, C-band to L-band (1.6-GHz) zero delay measurements, and a level calibrated L-band test signal. Exciter functions are described, and a general explanation and description of the C-band uplink controller is presented.

  4. Constraints to growth of annual nettle (Urtica urens) in an elevated CO{sub 2} atmosphere: Decreased leaf area ratio and tissue N cannot be explained by ontogenetic drift or mineral N supply

    Energy Technology Data Exchange (ETDEWEB)

    Marriott, D.J. [Univ. of Wales, Centre for Ecology and Hydrology, Gwynedd (United Kingdom); Stirling, C.M. [Univ. of Wales, School of Agricultural and Forest Sciences, Gwynedd (United Kingdom); Farrar, J. [Univ. of Wales, School of Biological Science, Gwynedd (United Kingdom)

    2001-07-01

    The current literature indicates that the stimulation of relative growth rate (RGR) by an elevated atmospheric CO{sub 2} concentration is transient. Urtica urens L. was exposed to an elevated atmospheric CO{sub 2} concentration for 26 days to better understand the factors involved in this constraint to growth. Plants were grown hydroponically without nutrient limitation in controlled-environment cabinets. Consistent with studies of other C{sub 3} species, the initial CO{sub 2} stimulation of RGR of U. urens was not sustained and declined in the early stages of exposure. Whilst the decline in RGR was most strongly linked to a reduction in the CO{sub 2} stimulation of net assimilation rate (NAR), its initial increase was constrained by an early and persistent reduction in leaf area ratio (LAR) due to a decreased specific leaf area (SLA). The decline in NAR could not be linked to any down-regulation of photosynthetic capacity of individual leaves, despite an accumulation of soluble sugars in them. The reductions in LAR and SLA reflected an accumulation of structural weight in addition to an accumulation of total non-structural carbohydrate (TNC). To account for the impact of ontogenetic drift on the partitioning of weight and leaf area, this study extends the usual allometric approach to include an analysis of effects on the vertical placement of regression lines (i.e their elevations). Using this approach, we argue that CO{sub 2}-induced reductions in LAR and SLA cannot be explained by ontogenetic drift. By monitoring the tissue N concentration, external N supply was shown unambiguously to be non-limiting for growth at any plant size. Nevertheless, tissue N was consistently lower in elevated CO{sub 2}, independent of both ontogeny and TNC accumulation, raising the possibility that the reductions in NAR, LAR and SLA are related to some internal constraint on N utilization. (au)

  5. Stem secondary growth of tundra shrubs

    DEFF Research Database (Denmark)

    Campioli, Matteo; Leblans, Niki; Michelsen, Anders

    2012-01-01

    Our knowledge of stem secondary growth of arctic shrubs (a key component of tundra net primary production, NPP) is very limited. Here, we investigated the impact of the physical elements of the environment on shrub secondary growth by comparing annual growth rates of model species from similar...... growth (stem apical growth, stem length, and apical growth of stem plus leaves), in some cases even with opposite responses. Thus caution should be taken when estimating the impact of the environment on shrub growth from apical growth only. Integration of our data set with the (very limited) previously...

  6. Study of rotational band in 111Sn

    International Nuclear Information System (INIS)

    Ganguly, S.; Banerjee, P.; Ray, I.; Kshetri, R.; Raut, R.; Goswami, A.; Saha Sarkar, M.; Bhattacharya, S.; Mukherjee, A.; Mukherjee, G.; Basu, S.K.; Mukhopadhyay, S.

    2006-01-01

    The motivation of the present work is to study the negative-parity rotational band in 111 Sn. Study of the lifetimes of the states of the rotational band is expected to provide information on their structures as well as the band termination phenomenon

  7. Prenatal diagnosis of amniotic band syndrome

    Directory of Open Access Journals (Sweden)

    Laxmi Devi Padmanabhan

    2016-01-01

    Full Text Available Amniotic band can cause a broad spectrum of anomalies ranging from simple band constrictions to major craniofacial and visceral defects. It can cause significant neonatal morbidity. Accurate diagnosis will help in the management of the present pregnancy and in counseling with regard to future pregnancies. Here we report three cases of amniotic band syndrome detected in the prenatal period.

  8. Complex band structure and electronic transmission eigenchannels

    DEFF Research Database (Denmark)

    Jensen, Anders; Strange, Mikkel; Smidstrup, Soren

    2017-01-01

    and complex band structure, in this case individual eigenchannel transmissions and different complex bands. We present calculations of decay constants for the two most conductive states as determined by complex band structure and standard DFT Landauer transport calculations for one semi-conductor and two...

  9. High-energy band structure of gold

    DEFF Research Database (Denmark)

    Christensen, N. Egede

    1976-01-01

    The band structure of gold for energies far above the Fermi level has been calculated using the relativistic augmented-plane-wave method. The calculated f-band edge (Γ6-) lies 15.6 eV above the Fermi level is agreement with recent photoemission work. The band model is applied to interpret...

  10. Multi-band Modelling of Appearance

    DEFF Research Database (Denmark)

    Stegmann, Mikkel Bille; Larsen, Rasmus

    2003-01-01

    the appearance of both derived feature bands and an intensity band. As a special case of feature-band augmented appearance modelling we propose a dedicated representation with applications to face segmentation. The representation addresses a major problem within face recognition by lowering the sensitivity...

  11. Multi-band Modelling of Appearance

    DEFF Research Database (Denmark)

    Stegmann, Mikkel Bille; Larsen, Rasmus

    2002-01-01

    the appearance of both derived feature bands and an intensity band. As a special case of feature-band augmented appearance modelling we propose a dedicated representation with applications to face segmentation. The representation addresses a major problem within face recognition by lowering the sensitivity...

  12. Presence of skeletal banding in a reef-building tropical crustose coralline alga.

    Directory of Open Access Journals (Sweden)

    Bonnie Lewis

    Full Text Available The presence of banding in the skeleton of coralline algae has been reported in many species, primarily from temperate and polar regions. Similar to tree rings, skeletal banding can provide information on growth rate, age, and longevity; as well as records of past environmental conditions and the coralline alga's growth responses to such changes. The aim of this study was to explore the presence and characterise the nature of banding in the tropical coralline alga Porolithon onkodes, an abundant and key reef-building species on the Great Barrier Reef (GBR Australia, and the Indo-Pacific in general. To achieve this we employed various methods including X-ray diffraction (XRD to determine seasonal mol% magnesium (Mg, mineralogy mapping to investigate changes in dominant mineral phases, scanning electron microscopy-electron dispersive spectroscopy (SEM-EDS, and micro-computed tomography (micro-CT scanning to examine changes in cell size and density banding, and UV light to examine reproductive (conceptacle banding. Seasonal variation in the Mg content of the skeleton did occur and followed previously recorded variations with the highest mol% MgCO3 in summer and lowest in winter, confirming the positive relationship between seawater temperature and mol% MgCO3. Rows of conceptacles viewed under UV light provided easily distinguishable bands that could be used to measure vertical growth rate (1.4 mm year-1 and age of the organism. Micro-CT scanning showed obvious banding patterns in relation to skeletal density, and mineralogical mapping revealed patterns of banding created by changes in Mg content. Thus, we present new evidence for seasonal banding patterns in the tropical coralline alga P. onkodes. This banding in the P. onkodes skeleton can provide valuable information into the present and past life history of this important reef-building species, and is essential to assess and predict the response of these organisms to future climate and

  13. L-band brightness temperature disaggregation for use with S-band and C-band radiometer data for WCOM

    Science.gov (United States)

    Yao, P.; Shi, J.; Zhao, T.; Cosh, M. H.; Bindlish, R.

    2017-12-01

    There are two passive microwave sensors onboard the Water Cycle Observation Mission (WCOM), which includes a synthetic aperture radiometer operating at L-S-C bands and a scanning microwave radiometer operating from C- to W-bands. It provides a unique opportunity to disaggregate L-band brightness temperature (soil moisture) with S-band C-bands radiometer data. In this study, passive-only downscaling methodologies are developed and evaluated. Based on the radiative transfer modeling, it was found that the TBs (brightness temperature) between the L-band and S-band exhibit a linear relationship, and there is an exponential relationship between L-band and C-band. We carried out the downscaling results by two methods: (1) downscaling with L-S-C band passive measurements with the same incidence angle from payload IMI; (2) downscaling with L-C band passive measurements with different incidence angle from payloads IMI and PMI. The downscaling method with L-S bands with the same incident angle was first evaluated using SMEX02 data. The RMSE are 2.69 K and 1.52 K for H and V polarization respectively. The downscaling method with L-C bands is developed with different incident angles using SMEX03 data. The RMSE are 2.97 K and 2.68 K for H and V polarization respectively. These results showed that high-resolution L-band brightness temperature and soil moisture products could be generated from the future WCOM passive-only observations.

  14. 2017 Annual Disability Statistics Supplement

    Science.gov (United States)

    Lauer, E. A; Houtenville, A. J.

    2018-01-01

    The "Annual Disability Statistics Supplement" is a companion report to the "Annual Disability Statistics Compendium." The "Supplement" presents statistics on the same topics as the "Compendium," with additional categorizations by demographic characteristics including age, gender and race/ethnicity. In…

  15. Thematic mapper studies band correlation analysis

    Science.gov (United States)

    Ungar, S. G.; Kiang, R.

    1976-01-01

    Spectral data representative of thematic mapper candidate bands 1 and 3 to 7 were obtained by selecting appropriate combinations of bands from the JSC 24 channel multispectral scanner. Of all the bands assigned, only candidate bands 4 (.74 mu to .80 mu) and 5 (.80 mu to .91 mu) showed consistently high intercorrelation from region to region and time to time. This extremely high correlation persisted when looking at the composite data set in a multitemporal, multilocation domain. The GISS investigations lend positive confirmation to the hypothesis, that TM bands 4 and 5 are redundant.

  16. Dust bands in the asteroid belt

    International Nuclear Information System (INIS)

    Sykes, M.V.; Greenberg, R.; Dermott, S.F.; Nicholson, P.D.; Burns, J.A.

    1989-01-01

    This paper describes the original IRAS observations leading to the discovery of the three dust bands in the asteroid belt and the analysis of data. Special attention is given to an analytical model of the dust band torus and to theories concerning the origin of the dust bands, with special attention given to the collisional equilibrium (asteroid family), the nonequilibrium (random collision), and the comet hypotheses of dust-band origin. It is noted that neither the equilibrium nor nonequilibrium models, as currently formulated, present a complete picture of the IRAS dust-band observations. 32 refs

  17. Fourth annual report 1991

    International Nuclear Information System (INIS)

    1991-01-01

    The Independent Radiation Monitoring Scheme for Clwyd began its monitoring programme in Clwyd in 1988. This is the fourth report on the results of the radiation monitoring carried out within Clwyd. The historical reasons for the conception of the Radiation Monitoring Scheme are given in the First Annual Report together with the protocol of operation and detailed sampling and monitoring information. The fourth Annual Report identifies any changes in techniques that have occurred in the last twelve months together with the latest monitoring and analytical data. Samples of air, beach materials, coastal sand and silt, seaweed, meat, fish and milk were taken from various locations within the county. No significant charges in radiation levels were found when compared with data from previous years. The values have remained within the range currently being expected throughout the United Kingdom. (author)

  18. Annual General Asssembly

    CERN Document Server

    Pension Fund

    2005-01-01

    All members and beneficiaries of the Pension Fund are invited to attend the Annual General Asssembly to be held in the CERN Council Chamber on Thursday 13 October 2005 at 14:30 The Agenda comprises: Opening Remarks (J. Bezemer) Results and presentation of the Annual Report 2004 - Role of asset classes in pension funds (C. Cuénoud). Copies of the 2004 Report are available from departmental secretariats. Package of measures aiming at equilibrating the Fund - Proposals by the Governing Board (J.-P. Matheys). Questions from members and beneficiaries. Persons wishing to ask questions are encouraged to submit them, where possible, in writing in advance, addressed to Mr C. Cuénoud, Administrator of the Fund. Conclusions (J. Bezemer). As usual, participants are invited to drinks after the assembly. NB The minutes of the 2004 General Assembly are available from the Administration of the Fund (tel.(+4122)767 27 42; e-mail Sophia.Revol@cern.ch)

  19. Annual General Asssembly

    CERN Multimedia

    2005-01-01

    All members and beneficiaries of the Pension Fund are invited to attend the Annual General Asssembly to be held in the CERN Council Chamber on Thursday 13 October 2005 at 14:30 The Agenda comprises: Opening Remarks (J. Bezemer) Results and presentation of the Annual Report 2004 - Role of asset classes in pension funds (C. Cuénoud) Copies of the 2004 Report are available from departmental secretariats. Package of measures aiming at equilibrating the Fund - Proposals by the Governing Board (J.-P. Matheys) Questions from members and beneficiaries Persons wishing to ask questions are encouraged to submit them, where possible, in writing in advance, addressed to Mr C. Cuénoud, Administrator of the Fund. Conclusions (J. Bezemer) As usual, participants are invited to drinks after the assembly. NB The minutes of the 2004 General Assembly are available from the Administration of the Fund (tel.(+4122)767 27 42; e-mail Sophia.Revol@cern.ch)

  20. Coal industry annual 1997

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-12-01

    Coal Industry Annual 1997 provides comprehensive information about US coal production, number of mines, prices, productivity, employment, productive capacity, and recoverable reserves. US Coal production for 1997 and previous years is based on the annual survey EIA-7A, Coal Production Report. This report presents data on coal consumption, coal distribution, coal stocks, coal prices, and coal quality for Congress, Federal and State agencies, the coal industry, and the general public. Appendix A contains a compilation of coal statistics for the major coal-producing States. This report includes a national total coal consumption for nonutility power producers that are not in the manufacturing, agriculture, mining, construction, or commercial sectors. 14 figs., 145 tabs.

  1. Annual recertification: fun? Wow!

    Science.gov (United States)

    Amos, A

    1994-01-01

    Learning is critical to fostering a knowledge base required for maintaining currency and furthering professional development. In the ever-changing field of nephrology, most skills practised in nursing are considered to be sanctioned medical acts or added nursing skills. Therefore, annual recertification of the skills designated as sanctioned medical acts is an expectation of the College of Nurses of Ontario. The Wellesley Hospital policy indicates one time only or annual approval of the added nursing skills. The article will discuss the use of games as a creative, non-threatening educational tool in the recertification/re-approval process currently in place at The Wellesley Hospital, renal programs. In the past two years, several games or alternative teaching strategies have been utilized to assist the staff in preparing for recertification. This paper will examine the advantages and disadvantages of utilizing alternative teaching formats. Commentary regarding the response of staff nurses, nursing management and education will be highlighted.

  2. Annual Energy Review 2007

    Energy Technology Data Exchange (ETDEWEB)

    Seiferlein, Katherine E. [USDOE Energy Information Administration (EIA), Washington, DC (United States)

    2008-06-01

    The Annual Energy Review (AER) is the Energy Information Administration's (EIA) primary report of annual historical energy statistics. For many series, data begin with the year 1949. Included are data on total energy production, consumption, and trade; overviews of petroleum, natural gas, coal, electricity, nuclear energy, renewable energy, international energy, as well as financial and environment indicators; and data unit conversion tables. Publication of this report is required under Public Law 95–91 (Department of Energy Organization Act), Section 205(c), and is in keeping with responsibilities given to the EIA under Section 205(a)(2), which states: “The Administrator shall be responsible for carrying out a central, comprehensive, and unified energy data and information program which will collect, evaluate, assemble, analyze, and disseminate data and information....”

  3. Petroleum marketing annual 1994

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1995-08-24

    The Petroleum Marketing Annual (PMA) provides information and statistical data on a variety of crude oils and refined petroleum products. The publication presents statistics on crude oil costs and refined petroleum products sales for use by industry, government, private sector analysis, educational institutions, and consumers. Data on crude oil include the domestic first purchase price, the fob and landed cost of imported crude oil, and the refiners` acquisition cost of crude oil. Refined petroleum product sales data include motor gasoline, distillates, residuals, aviation fuels, kerosene, and propane. The Petroleum Marketing Division, Office of Oil and Gas, Energy Information Administration ensures the accuracy, quality, and confidentiality of the published data in the Petroleum Marketing Annual. For this production, all estimates have been recalculated since their earlier publication in the Petroleum Marketing Monthly (PMM). These calculations made use of additional data and corrections that were received after the PMM publication date.

  4. NAGRA Annual report 2010

    International Nuclear Information System (INIS)

    2011-04-01

    This annual report presents the highlights of the activities carried out by the Swiss National Co-operative for the Disposal of Radioactive Wastes NAGRA during the year 2010. These include reviews by various commissions of the NAGRA co-operative's proposals for possible sites for nuclear waste repositories. Also, the enhancements made concerning information facilities for the general public at the co-operative's rock laboratories are mentioned. The operation of initial satellite-based precision measurement systems for movements in the earth's crust is noted. Organisational aspects and international co-operation are discussed. This annual report also looks at NAGRA's organisational structures and its commercial accounts. Appendices provide details on waste inventories and volumes and publications made in 2010. A selection of relevant internet addresses is also provided

  5. 1986 Annual Report

    International Nuclear Information System (INIS)

    1987-01-01

    This annual report describes the reasearch activity carried out during 1986 by the Fusion Department of the Italian Commision for Nuclear and Alternative Energy Sources (ENEA). The report outlines the main results obtained by the three major projects of the Fusion Department (Fusion Physics, Frascati Tokamak Upgrade, and Fusion Reactor Engineering), plus the divisional project Inertial Confinement mentioned separately because of its particular scientific content. Most of the research work was performed by the Fusion Department at its location at the ENEA Frascati Energy Research Center, but some work was also done elsewhere, or with recourse to other ENEA departments. The research activity described in this annual report was carried out with the frame of the Association Euratom-ENEA on Fusion, with the exception of some minor activities

  6. NAGRA Annual report 2010

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2011-04-15

    This annual report presents the highlights of the activities carried out by the Swiss National Co-operative for the Disposal of Radioactive Wastes NAGRA during the year 2010. These include reviews by various commissions of the NAGRA co-operative's proposals for possible sites for nuclear waste repositories. Also, the enhancements made concerning information facilities for the general public at the co-operative's rock laboratories are mentioned. The operation of initial satellite-based precision measurement systems for movements in the earth's crust is noted. Organisational aspects and international co-operation are discussed. This annual report also looks at NAGRA's organisational structures and its commercial accounts. Appendices provide details on waste inventories and volumes and publications made in 2010. A selection of relevant internet addresses is also provided

  7. International energy annual 1997

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-04-01

    The International Energy Annual presents an overview of key international energy trends for production, consumption, imports, and exports of primary energy commodities in over 220 countries, dependencies, and areas of special sovereignty. Also included are population and gross domestic product data, as well as prices for crude oil and petroleum products in selected countries. Renewable energy reported in the International Energy Annual includes hydroelectric power and geothermal, solar, and wind electric power. Also included are biomass electric power for Brazil and the US, and biomass, geothermal, and solar energy produced in the US and not used for electricity generation. This report is published to keep the public and other interested parties fully informed of primary energy supplies on a global basis. The data presented have been largely derived from published sources. The data have been converted to units of measurement and thermal values (Appendices E and F) familiar to the American public. 93 tabs.

  8. Nagra annual report 2013

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2014-07-01

    This annual report made by the Swiss National Cooperative for the Disposal of Radioactive Waste (NAGRA) takes a look at the cooperative’s activities and work done in 2013. Nagra’s task is recapitulated. Developments in 2013 concerning legislation, inventories of radioactive materials, sectorial planning and scientific and technical aspects are examined. Work done in the rock laboratories, in the public relations sector and consulting areas is looked at. Nagra’s organizational structure with its management, commissions and auditors is commented on and an organigram of the head office is presented. On the financial side of things, the annual financial statement with incomes, cash flow and accumulated accounts is presented as is the report made by the statutory auditors. An appendix to the report contains details on waste inventories and volumes, a list publications made in 2012 as well as Internet addresses and a glossary.

  9. Petroleum marketing annual 1994

    International Nuclear Information System (INIS)

    1995-01-01

    The Petroleum Marketing Annual (PMA) provides information and statistical data on a variety of crude oils and refined petroleum products. The publication presents statistics on crude oil costs and refined petroleum products sales for use by industry, government, private sector analysis, educational institutions, and consumers. Data on crude oil include the domestic first purchase price, the fob and landed cost of imported crude oil, and the refiners' acquisition cost of crude oil. Refined petroleum product sales data include motor gasoline, distillates, residuals, aviation fuels, kerosene, and propane. The Petroleum Marketing Division, Office of Oil and Gas, Energy Information Administration ensures the accuracy, quality, and confidentiality of the published data in the Petroleum Marketing Annual. For this production, all estimates have been recalculated since their earlier publication in the Petroleum Marketing Monthly (PMM). These calculations made use of additional data and corrections that were received after the PMM publication date

  10. Nagra annual report 2013

    International Nuclear Information System (INIS)

    2014-01-01

    This annual report made by the Swiss National Cooperative for the Disposal of Radioactive Waste (NAGRA) takes a look at the cooperative’s activities and work done in 2013. Nagra’s task is recapitulated. Developments in 2013 concerning legislation, inventories of radioactive materials, sectorial planning and scientific and technical aspects are examined. Work done in the rock laboratories, in the public relations sector and consulting areas is looked at. Nagra’s organizational structure with its management, commissions and auditors is commented on and an organigram of the head office is presented. On the financial side of things, the annual financial statement with incomes, cash flow and accumulated accounts is presented as is the report made by the statutory auditors. An appendix to the report contains details on waste inventories and volumes, a list publications made in 2012 as well as Internet addresses and a glossary

  11. Coal industry annual 1997

    International Nuclear Information System (INIS)

    1998-12-01

    Coal Industry Annual 1997 provides comprehensive information about US coal production, number of mines, prices, productivity, employment, productive capacity, and recoverable reserves. US Coal production for 1997 and previous years is based on the annual survey EIA-7A, Coal Production Report. This report presents data on coal consumption, coal distribution, coal stocks, coal prices, and coal quality for Congress, Federal and State agencies, the coal industry, and the general public. Appendix A contains a compilation of coal statistics for the major coal-producing States. This report includes a national total coal consumption for nonutility power producers that are not in the manufacturing, agriculture, mining, construction, or commercial sectors. 14 figs., 145 tabs

  12. 2017 Annual Technology Baseline

    Energy Technology Data Exchange (ETDEWEB)

    Cole, Wesley J [National Renewable Energy Laboratory (NREL), Golden, CO (United States); Hand, M. M [National Renewable Energy Laboratory (NREL), Golden, CO (United States); Eberle, Annika [National Renewable Energy Laboratory (NREL), Golden, CO (United States); Beiter, Philipp C [National Renewable Energy Laboratory (NREL), Golden, CO (United States); Kurup, Parthiv [National Renewable Energy Laboratory (NREL), Golden, CO (United States); Turchi, Craig S [National Renewable Energy Laboratory (NREL), Golden, CO (United States); Feldman, David J [National Renewable Energy Laboratory (NREL), Golden, CO (United States); Margolis, Robert M [National Renewable Energy Laboratory (NREL), Golden, CO (United States); Augustine, Chad R [National Renewable Energy Laboratory (NREL), Golden, CO (United States); Maness, Michael [Formerly NREL; O' Connor, Patrick [Oak Ridge National Laboratory

    2018-03-26

    Consistent cost and performance data for various electricity generation technologies can be difficult to find and may change frequently for certain technologies. With the Annual Technology Baseline (ATB), the National Renewable Energy Laboratory annually provides an organized and centralized set of such cost and performance data. The ATB uses the best information from the Department of Energy national laboratories' renewable energy analysts as well as information from the Energy Information Administration for fuel-based technologies. The ATB has been reviewed by experts and it includes the following electricity generation technologies: land-based wind, offshore wind, utility-scale solar photovoltaics (PV), commercial-scale solar PV, residential-scale solar PV, concentrating solar power, geothermal power, hydropower, coal, natural gas, nuclear, and conventional biopower. This webinar presentation introduces the 2017 ATB.

  13. TIARA annual report 1999

    Energy Technology Data Exchange (ETDEWEB)

    Saidoh, Masahiro; Toraishi, Akio; Itoh, Hisayoshi [eds.; Japan Atomic Energy Research Inst., Takasaki, Gunma (Japan). Takasaki Radiation Chemistry Research Establishment; and others

    2000-10-01

    This annual report describes research and development activities which have been performed with the JAERI TIARA (Takasaki Ion Accelerators for Advanced Radiation Application) facilities from April 1, 1999 to March 31, 2000. Summary reports of 106 papers and brief descriptions on the status of TIARA in the period are contained. A list of publications, the type of research collaborations and organization of TIARA are also given as appendices. (author)

  14. TIARA annual report 2000

    Energy Technology Data Exchange (ETDEWEB)

    Saidoh, Masahiro; Toraishi, Akio; Namba, Hideki [Japan Atomic Energy Research Inst., Takasaki, Gunma (Japan). Takasaki Radiation Chemistry Research Establishment; and others

    2001-11-01

    This annual report describes research and development activities which have been performed with the JAERI TIARA (Takasaki Ion Accelerators for Advanced Radiation Application) facilities from April 1, 2000 to March 31, 2001. Summary reports of 103 papers and brief descriptions on the status of TIARA in the period are contained. A list of publications, the type of research collaborations and organization of TIARA are also given as appendices. (author)

  15. Annual report 2005

    International Nuclear Information System (INIS)

    2005-01-01

    Areva is a world energy expert on technological solutions for nuclear power generation and electricity transmission and distribution. This 2005 annual report provides information on the Group results in the following domains: information pertaining to the transaction, general information on the company and share capital, information on company operations, new developments and future prospects, assets, financial position, financial performance, corporate governance, recent developments and outlook. (A.L.B.)

  16. Uranium industry annual, 1988

    International Nuclear Information System (INIS)

    1989-01-01

    This report presents data on US uranium raw materials and marketing activities of the domestic uranium industry. It contains aggregated data reported by US companies on the ''Uranium Industry Annual Survey'' (1988), Form EIA-858, and historical data from prior data collections and other pertinent sources. The report was prepared by the Energy Information Administration (EIA), the independent agency for data collection and analysis with the US Department of Energy

  17. Annual Report 2006

    International Nuclear Information System (INIS)

    Swiboda, G.

    2007-01-01

    The Annual Report of the Institute of Atomic Energy describes the results of the research activities carried out in 2006. The document consist of seven parts: General Information; Operation and safety of MARIA reactor; Radiation protection and dosimetry; Nuclear Technology in Energy Generation; Solid State Physics; Nuclear techniques in Health and Environment Protection management of Hazards and in last section the list of published in 2006 papers, conferences, seminars, workshops, research projects and educational activities are presented

  18. Risoe annual report 1987

    International Nuclear Information System (INIS)

    1988-06-01

    An explanation of Risoe National Laboratory's function within the Danish research system is followed by brief accounts of research activities at Risoe during 1987. Energy resources, technology and policy are discussed, the annual accounts are presented, a guide to the National Laboratory and a list of its publications are given. Some of the research activities that took place in 1987 described in more detail are within the fields of chemistry and the environment, superconductivity, new aspects of powdery mildew, polymers and robotics. (AB)

  19. Annual Report 2005

    Energy Technology Data Exchange (ETDEWEB)

    Swiboda, G [Institute of Atomic Energy, Otwock-Swierk (Poland)

    2006-07-01

    The Annual Report of the Institute of Atomic Energy describes the results of the research activities carried out in 2005. The document consist of seven parts: General Information; Operation and safety of MARIA reactor; Radiological protection and dosimetry; Nuclear Technology in Energy Generation; Solid State Physics; Nuclear techniques in Health and Environment Protection management of Hazards and in last section the list of published in 2004 papers, conferences, seminars, workshops, research projects and educational activities are presented.

  20. Annual Report 1985

    International Nuclear Information System (INIS)

    Muenze, R.

    1986-06-01

    This annual report covers the work carried out at the Radioisotope Department, ZfK Rossendorf, during the year 1985. It contains 12 contributions related to the development of processes for generating radioisotopes, 23 contributions related to the synthesis of radioactive compounds, and 26 contributions related to the characterization of radioactive compounds. All contributions are published in summary form only and are individually processed for the INIS database. Additionally, a list is given of publications and lectures issued between January and December 1985

  1. ILL Annual Report 1974

    International Nuclear Information System (INIS)

    1974-01-01

    This annual report provides a general view of the activities of the different sections of the ILL. In 1974, twenty-two different neutron spectrometers with different characteristics were available on a regular basis. Moreover, a number of special neutron sources were employed for on-line experiments. The major effort was devoted to an increase in experimental systems and to the development of new measurement techniques [fr

  2. OPEC annual report 1983

    Energy Technology Data Exchange (ETDEWEB)

    1983-01-01

    This annual report is concerned with the following items: the general economic situation of OPEC member countries, other developing countries and the industrial countries; energy market developments (environment, crude oil, crude oil prices, oil stock movements); upstream and downstream activities (exploration, production and reserves, refining, petrochemicals, hydrocarbon transportation, legislation, contracts and agreements in Member Countries); activities of the Secretariat. The annexes contain statistical data, press releases and resolutions and a schedule of member Country representatives and officials of the Secretariat.

  3. Annual report 1983

    International Nuclear Information System (INIS)

    Van de Vyver, R.E.

    1983-01-01

    In 1983, the various research projects in which the nuclear physics laboratory of Ghent State University is involved, were continued. In the present Annual Report, the results obtained in the field of photofission, photonuclear reactions positron annihilation, dosimetry and nuclear theory are summarized. The new 10 MeV high duty factor linear electron accelerator is presently being installed: performance tests will be carried out until July 1984; after which this facility will gradually become available for nuclear research purposes. (AF)

  4. Annual Report 2005

    International Nuclear Information System (INIS)

    Swiboda, G.

    2006-01-01

    The Annual Report of the Institute of Atomic Energy describes the results of the research activities carried out in 2005. The document consist of seven parts: General Information; Operation and safety of MARIA reactor; Radiological protection and dosimetry; Nuclear Technology in Energy Generation; Solid State Physics; Nuclear techniques in Health and Environment Protection management of Hazards and in last section the list of published in 2004 papers, conferences, seminars, workshops, research projects and educational activities are presented

  5. Annual report 1980

    International Nuclear Information System (INIS)

    1980-12-01

    In this annual report a survey is given about the research programs of the named institute during 1980. The research concerns experiments with synchrotron radiation, hyperfine structure studies, experiments with the DORIS and PETRA storage rings, and experiments at the CERN accelerators. Furthermore the development of instruments in this institute is described. In addition a list of publications, contributions to conferences, and theses of this institute is given. (HSI)

  6. NERSC 1998 annual report

    Energy Technology Data Exchange (ETDEWEB)

    Hules, John (ed.)

    1999-03-01

    This 1998 annual report from the National Scientific Energy Research Computing Center (NERSC) presents the year in review of the following categories: Computational Science; Computer Science and Applied Mathematics; and Systems and Services. Also presented are science highlights in the following categories: Basic Energy Sciences; Biological and Environmental Research; Fusion Energy Sciences; High Energy and Nuclear Physics; and Advanced Scientific Computing Research and Other Projects.

  7. TIARA annual report 2003

    International Nuclear Information System (INIS)

    Ohara, Yoshiro; Arakawa, Kazuo; Tanaka, Shigeru; Naramoto, Hiroshi; Yoshida, Masaru; Itoh, Hisayosi; Yoshikawa, Masato; Tanaka, Atsushi; Kobayashi, Yasuhiko; Fukuda, Mitsuhiro; Otsubo, Michiaki; Tajima, Satoshi; Tanaka, Susumu

    2004-11-01

    This annual report describes research and development activities which have been performed with the JAERI TIARA (Takasaki Ion Accelerators for Advanced Radiation Application) facilities from April 1, 2003 to March 31, 2004. Summary reports of 115 papers and brief descriptions on the status of TIARA in the period are contained. A list of publications, the type of research collaborations and organization of TIARA are also given as appendices. (author)

  8. Annual Pension Fund Update

    CERN Multimedia

    Pension Fund

    2011-01-01

    All members and beneficiaries of the Pension Fund are invited to attend the Annual Pension Fund Update to be held in the CERN Council Chamber on Tuesday 20 September 2011 from 10-00 to 12-00 a.m. Copies of the 2010 Financial Statements are available from departmental secretariats. Coffee and croissants will be served prior to the meeting as of 9-30 a.m.

  9. Annual Report 1979

    International Nuclear Information System (INIS)

    1980-01-01

    This annual report from the Netherlands Centre for Energy Research, includes the progress made in the five main research areas: fission energy, nuclear fusion and superconductivity, combustion energy (including environmental research), current energy and non-energetic applications of nuclear fission. Studies performed by the Energy Study Centrum, a department within ECN, and the Bureau for Energy Research Projects are described. A financial report is presented and a list of publications included. (C.F.)

  10. Annual report ISIS

    International Nuclear Information System (INIS)

    Biggin, S.

    1988-07-01

    The paper presents the 1988 Annual Report for ISIS (United Kingdom). A description is given of the accelerator and target station. The capability of ISIS is described including the facilities available and the type of science carried out using the instruments. The development and support activities are outlined, along with the ISIS organisation and user interaction. The appendix contains experimental reports on research work conducted at ISIS. (U.K.)

  11. Annual Report 2005

    Energy Technology Data Exchange (ETDEWEB)

    Michalik, J; Smulek, W; Godlewska-Para, E [eds.

    2006-07-01

    The Annual Report of the Institute of Nuclear Chemistry and Technology (Warsaw, Poland) describes the activities of the Institute in 2005. The document consist of four parts: (1) Radiation chemistry and physics, radiation technologies; (2) Radiochemistry, stable isotopes, nuclear analytical methods, general chemistry; (3) Radiobiology; (4) Nuclear technologies and methods. In total - 73 detailed papers prepared by the Institute workers and collaborating scientists are presented. General information on the Institute status, personnel activity and the international cooperation is also listed.

  12. Annual Report 2007

    Energy Technology Data Exchange (ETDEWEB)

    Swiboda, G [Institute of Atomic Energy, Otwock-Swierk (Poland)

    2008-07-01

    The Annual Report of the Institute of Atomic Energy describes the results of the research activities carried out in 2007. The document consist of eight parts: General Information; Operation and safety of MARIA reactor; Radiation protection and dosimetry; Nuclear technology in energy generation; Condensed matter physics; Nuclear techniques in health and environment protection management of hazards; Radioisotope center POLATOM and in last section in which the lists of published in 2007 papers, conferences, seminars, workshops, research projects and educational activities are presented.

  13. Annual Report 2007

    International Nuclear Information System (INIS)

    Swiboda, G.

    2008-01-01

    The Annual Report of the Institute of Atomic Energy describes the results of the research activities carried out in 2007. The document consist of eight parts: General Information; Operation and safety of MARIA reactor; Radiation protection and dosimetry; Nuclear technology in energy generation; Condensed matter physics; Nuclear techniques in health and environment protection management of hazards; Radioisotope center POLATOM and in last section in which the lists of published in 2007 papers, conferences, seminars, workshops, research projects and educational activities are presented

  14. Annual report 2005

    International Nuclear Information System (INIS)

    2005-01-01

    This annual report of the Group Gaz de France presents the activities for the year 2005 in four main chapters: the group profile, the governance and the challenges; the energy and services display and the infrastructures; the capital opening and some key data; the group collaborators, the energy conservation, the research programs and the future of the gas and the electricity. (A.L.B.)

  15. TIARA annual report 2002

    International Nuclear Information System (INIS)

    2003-11-01

    This annual report describes research and development activities which have been performed with the JAERI TIARA (Takasaki Ion Accelerators for Advanced Radiation Application) facilities from April 1, 2002 to March 31, 2003. Summary reports of 113 papers and brief descriptions on the status of TIARA in the period are contained. A list of publications, the type of research collaborations and organization of TIARA are also given as appendices. (author)

  16. Annual Report 2005

    International Nuclear Information System (INIS)

    Kirejczyk, M.K.

    2006-01-01

    The Annual Report of the Nuclear Physics Division, Institute of Experimental Physics, Warsaw University describes the results of the research activities carried out in 2005. The document consist of three parts: ''Research Reports on Reaction Mechanism and Nuclear Structure'', ''Research Reports on Experimental Methods and Instrumentation'' and ''Seminars, Personnel and Publications''. The short description of the whole NPD activity is also given in ''Preface'' written by director of the Department prof. K. Siwek-Wilczynska

  17. Annual Report 2006

    International Nuclear Information System (INIS)

    Chmielewska, D.; Infeld, E.; Zupranski, P.

    2007-06-01

    The ''Annual Report 2006'' describes activities of Andrzej Soltan Institute for Nuclear Studies in 2006. Report consists in general two parts. First consists of general information about location, management, scientific council, personnel, financial support and conferences while the second one the scientific activity of Institute. This part is divided into subsections which present progress in research of the Institut Departments and Establishments. A Foreword to report written by Director of the Institute Grzegorz Wrochna is also given

  18. Annual Report 2006

    Energy Technology Data Exchange (ETDEWEB)

    Chmielewska, D; Infeld, E; Zupranski, P [The Andrzej Soltan Institute for Nuclear Studies, Swierk-Otwock (Poland)

    2007-06-15

    The ''Annual Report 2006'' describes activities of Andrzej Soltan Institute for Nuclear Studies in 2006. Report consists in general two parts. First consists of general information about location, management, scientific council, personnel, financial support and conferences while the second one the scientific activity of Institute. This part is divided into subsections which present progress in research of the Institut Departments and Establishments. A Foreword to report written by Director of the Institute Grzegorz Wrochna is also given.

  19. IKF - annual report 1982

    International Nuclear Information System (INIS)

    Schmidt-Boecking, H.; Steuer, E.

    This annual report contains extended abstracts about the work performed in the named institute during 1982 together with a list of publications. The work concerns nuclear structure and nuclear reactions, high-energetic heavy ion physics, heavy ion-atom collisions, nuclear solidstate physics, solid-state particle detectors, the application of nuclear methods and mass spectroscopy, ion source development, instrumental development and data processing, interdisciplinary cooperation, as well as the Van de Graaf accelerator facilities. (HSI) [de

  20. Annual Report 2000

    International Nuclear Information System (INIS)

    2000-01-01

    This annual report gives the activities during the year 2000 and information about the General Direction of the Energy and Raw Materials (DGEMP) in France. The highlights of the year are discussed in the main following topics: public utilities, the Erika oil slick, the petroleum products prices increase, the energy efficiency national program, Eole 2005, the nuclear industry management. The french energy accounting, the publications and the organization of the DGEMP are also provided. (A.L.B.)

  1. Total - annual report 2005

    International Nuclear Information System (INIS)

    2006-01-01

    This annual report presents the activities and results of TOTAL S.A., french society on oil and gas. It deals with statistics, the managers, key information on financial data and risk factors, information on the Company, unresolved Staff Comments, employees, major Shareholders, consolidated statements, markets, security, financial risks, defaults dividend arrearages and delinquencies, controls and procedures, code of ethics and financial statements. (A.L.B.)

  2. 2008 annual merit review

    Energy Technology Data Exchange (ETDEWEB)

    None, None

    2009-01-18

    The 2008 DOE Vehicle Technologies Program Annual Merit Review was held February 25-28, 2008 in Bethesda, Maryland. The review encompassed all of the work done by the Vehicle Technologies Program: a total of 280 individual activities were reviewed, by a total of just over 100 reviewers. A total of 1,908 individual review responses were received for the technical reviews, and an additional 29 individual review responses were received for the plenary session review.

  3. Annual report 2000

    International Nuclear Information System (INIS)

    2000-01-01

    This year 2000 annual report of the CEA (atomic energy commissariat) gives a general overview of the CEA activities and organization in the domains of the defence, the nuclear energy the technological research and the fundamental research. It is presented in seven main parts: contribution to national defence, civil nuclear research, technological research for the industry, pushing back the frontiers of scientific knowledge in physics and life science, mastery of installations; institute for protection and nuclear safety, research resources. (A.L.B.)

  4. NSLS annual report 1984

    Energy Technology Data Exchange (ETDEWEB)

    Klaffky, R.; Thomlinson, W. (eds.)

    1984-01-01

    The first comprehensive Annual Report of the National Synchrotron Light Source comes at a time of great activity and forward motion for the facility. In the following pages we outline the management changes that have taken place in the past year, the progress that has been made in the commissioning of the x-ray ring and in the enhanced utilization of the uv ring, together with an extensive discussion of the interesting scientific experiments that have been carried out.

  5. CRPP Annual report 1990

    International Nuclear Information System (INIS)

    1991-05-01

    This annual report presents the activities of the CRPP in the domain of fusion and points out the main results and events of the past year. For the sake of clarity the activities have been grouped under five headings, resulting in sections of unequal size. These are: tokamak physics, development of new diagnostics, theory and numerical simulation, non-linear plasma physics and development of microwave sources. figs., tabs., refs

  6. TIARA annual report 1997

    International Nuclear Information System (INIS)

    Tanaka, Ryuichi; Saido, Masahiro; Nashiyama, Isamu

    1998-10-01

    This annual report describes research activities which have been performed with the JAERI TIARA (Takasaki Ion Accelerators for Advanced Radiation Application) facilities from April 1, 1997 to March 31, 1998. Summary reports of 90 papers and brief descriptions on the status of TIARA in the period are contained. A list of publications, the type of research collaborations and organization of TIARA are also given as appendices. (author)

  7. Annual Report 2008

    International Nuclear Information System (INIS)

    Zielinska, M.; Gawlikowicz, W.

    2009-06-01

    The Annual Report of the Heavy Ion Laboratory, University of Warsaw describes the activities of Laboratory in 2008. The document consist of four parts: '' Laboratory Overview '', '' Experiments and Experimental Set-ups '', '' Experiments Using the Outside Facilities '' and '' General Information on HIL Activities ''. An '' Introduction '' written by directors of the Heavy Ion Laboratory: prof. J. Jastrzebski, prof. J. Kownacki and prof. K. Rusek is also given

  8. TIARA annual report 1996

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-11-01

    This annual report describes research activities which have been performed with the JAERI TIARA (Takasaki Ion Accelerators for Advanced Radiation Application) facilities from April 1, 1996 to March 31, 1997. Summary reports of 88 papers and 4 brief descriptions on the status of TIARA in the period are contained. A list of publications, the type of research collaborations and organization of TIARA are also given as appendices. (J.P.N.)

  9. Annual Report 2005

    International Nuclear Information System (INIS)

    Michalik, J.; Smulek, W.; Godlewska-Para, E.

    2006-01-01

    The Annual Report of the Institute of Nuclear Chemistry and Technology (Warsaw, Poland) describes the activities of the Institute in 2005. The document consist of four parts: (1) Radiation chemistry and physics, radiation technologies; (2) Radiochemistry, stable isotopes, nuclear analytical methods, general chemistry; (3) Radiobiology; (4) Nuclear technologies and methods. In total - 73 detailed papers prepared by the Institute workers and collaborating scientists are presented. General information on the Institute status, personnel activity and the international cooperation is also listed

  10. Annual report 1976

    International Nuclear Information System (INIS)

    1977-02-01

    In part 1, the annual report informs of the organizational and administrative development of the Bundesanstalt, in its 2nd part it presents a survey of scientific activities in 1976, examinations carried out, measuring devices and operational equipment given permission to, and cooperation in national and international bodies. The 3rd part contains scientific summaries of activities published and not published, which were either concluded in the year under review or which came to some interim results. (orig.) [de

  11. 2002 Annual report

    International Nuclear Information System (INIS)

    2003-01-01

    This annual report presents information of the main activities on the scope of radiation protection and nuclear safety of the Nuclear Regulatory Authority (ARN) of the Argentina during 2002. The following activities and developed topic in this report describe: radiation and nuclear safety, safeguards, physical protection, transport of radioactive materials, regulatory guides and standards, inspections, licensing, emergency systems, occupational and environmental surveillance, institutional relations with national and international organizations, training courses, information systems, human and economic resources

  12. CSIR Annual report 2003

    CSIR Research Space (South Africa)

    CSIR

    2003-01-01

    Full Text Available ACHIEVEMENTS OF OUR PEOPLE 14 THE STATE OF SCIENCE AND TECHNOLOGY IN THE CSIR 15 ANNUAL FINANCIAL STATEMENTS 20 CORPORATE GOVERNANCE 20 CSIR BOARD MEMBERS 24 REPORT OF THE AUDIT COMMITTEE 26 REPORT OF THE AUDITOR GENERAL 27 EXECUTIVE REPORT 28 FIVE..., which followed research and development of new technology related to the Hoodia plant, dubbed P57. Clinical trials relating to the product continue internationally. World-class genomics research > The African Centre for Gene Technologies, established...

  13. 2012 CPES Annual Report

    OpenAIRE

    Virginia Tech. Center for Power Electronics Systems

    2012-01-01

    The Center for Power Electronics Systems at Virginia Tech is a research center dedicated to improving electrical power processing and distribution that impact systems of all sizes – from battery – operated electronics to vehicles to regional and national electrical distribution systems. Our mission is to provide leadership through global collaborative research and education for creating advanced electric power processing systems of the highest value to society. CPES, with annual research expe...

  14. GSF - annual report 1976

    International Nuclear Information System (INIS)

    1976-01-01

    The annual report of the GSF for 1976 describes in brief contributions and surveys the activities of the institutes for biology, microbiology, radiation botany, biochemistry, hematology, medical data processing, ecological chemistry, radiation protection, radiohydrometry, underground disposal, as well as the activities of associated departments and activities of the special departments for algae R+D, for toxicology, for coherent optics and of the physical-technical department. (HK) [de

  15. NSLS annual report 1984

    International Nuclear Information System (INIS)

    Klaffky, R.; Thomlinson, W.

    1984-01-01

    The first comprehensive Annual Report of the National Synchrotron Light Source comes at a time of great activity and forward motion for the facility. In the following pages we outline the management changes that have taken place in the past year, the progress that has been made in the commissioning of the x-ray ring and in the enhanced utilization of the uv ring, together with an extensive discussion of the interesting scientific experiments that have been carried out

  16. Annual report 1991

    Energy Technology Data Exchange (ETDEWEB)

    Broda, R; Lesniak, L; Malecki, P; Stachura, Z; Wojciechowski, H [eds.

    1993-12-31

    The material presented describing the scientific activities of the Henryk Niewodniczanski Institute of Nuclear Physics in 1991 is the first annual report in several years.The arrangement of the report from various departments reflect the present structure of the Institute and is meant to help in the future task of reconstructing the Institute. Few guidelines proposed by the editorial board gave the individual departments much freedom in selecting the material and choosing the volume and format of presentation. (author).

  17. Annual report 1976

    International Nuclear Information System (INIS)

    Nilsson, A.

    1976-01-01

    This annual report contains research reports from the various groups of the Research Institute of Physics, Stockholm. Reports are made by workers in the Atomic and Molecular Physics group, the Surface Physics group, the Nuclear Physics group, the group researching into High Energy Physics and related topics and the Instrumentation and Methods group. The report also contains a list of the papers published by members of the Institute during the year and a list of the theses which were presented. (B.D.)

  18. Annual report 1991

    International Nuclear Information System (INIS)

    Broda, R.; Lesniak, L.; Malecki, P.; Stachura, Z.; Wojciechowski, H.

    1992-01-01

    The material presented describing the scientific activities of the Henryk Niewodniczanski Institute of Nuclear Physics in 1991 is the first annual report in several years.The arrangement of the report from various departments reflect the present structure of the Institute and is meant to help in the future task of reconstructing the Institute. Few guidelines proposed by the editorial board gave the individual departments much freedom in selecting the material and choosing the volume and format of presentation. (author)

  19. Annual report 1991

    Energy Technology Data Exchange (ETDEWEB)

    Broda, R.; Lesniak, L.; Malecki, P.; Stachura, Z.; Wojciechowski, H. [eds.

    1992-12-31

    The material presented describing the scientific activities of the Henryk Niewodniczanski Institute of Nuclear Physics in 1991 is the first annual report in several years.The arrangement of the report from various departments reflect the present structure of the Institute and is meant to help in the future task of reconstructing the Institute. Few guidelines proposed by the editorial board gave the individual departments much freedom in selecting the material and choosing the volume and format of presentation. (author).

  20. TIARA annual report 2001

    International Nuclear Information System (INIS)

    Saidoh, Masahiro; Ohara, Yoshihiro; Namba, Hideki

    2002-11-01

    This annual report describes research and development activities which have been performed with the JAERI TIARA (Takasaki Ion Accelerators for Advanced Radiation Application) facilities from April 1, 2001 to March 31, 2002. Summary reports of 109 papers and brief descriptions on the status of TIARA in the period are contained. A list of publications, the type of research collaborations and organization of TIARA are also given as appendices. (author)

  1. TIARA annual report 1998

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-10-01

    This annual report describes research and development activities which have been performed with the JAERI TIARA (Takasaki Ion Accelerators for Advanced Radiation Application) facilities from April 1, 1998 to March 31, 1999. Summary reports of 95 papers and brief descriptions on the status of TIARA in the period are contained. A list of publications, the type of research collaborations and organization of TIARA are also given as appendices. (author)

  2. 2002 annual report

    International Nuclear Information System (INIS)

    2003-01-01

    Delivering products and services to nuclear power plants operators, AREVA operates in every sector of the civilian nuclear power and fuel cycle industry. This annual report 2002 provides information on financial highlights, corporate governance, organization of the Group, share, sustainable development policy (integration into the management practices, financial and environmental responsibility, responsibility to the employees and to the society), nuclear power (front end division, reactors and services division, back end division), connectors division, equity interests and financial report. (A.L.B.)

  3. Annual report 1979

    International Nuclear Information System (INIS)

    1980-01-01

    The 1979 annual report of HMI presents information on the major scientific findings of this year in the fields of nuclear and radiation physics, radiation chemistry, radiochemistry, data processing and electronics as well as on the scientific cooperation with universities, institutions, and the industry. The general development of HMI, its structure and organisation are reviewed. A detailed list of publications and lectures (also by foreign guests of HMI) in the various fields of research is given. (RB) [de

  4. NIKHEF annual report 1983

    International Nuclear Information System (INIS)

    1984-01-01

    This annual report of NIKHEF, Amsterdam (Netherlands) describes experiments carried out at CERN (Geneve), DESY (Hamburg) viz. WA25; CHARM-collaboration; ACCMOR experiments; proton-antiproton collision; LEAR; MARK-J; Crystal Ball experiment; HERA. For the nuclear physics section, experiments are described on electro-excitation of nuclei; pion and muon physics. Theoretical studies are listed concerning electromagnetic interactions in the sigma-omega model and delta-nuclei dynamics. A radiochemical and technical part concludes the report. (Auth.)

  5. Annual Report 2005

    Energy Technology Data Exchange (ETDEWEB)

    Chmielewska, D; Infeld, E; Zupranski, P [The Andrzej Soltan Institute for Nuclear Studies, Swierk-Otwock (Poland)

    2006-06-15

    The ''Annual Report 2005'' describes activities of Andrzej Soltan Institute for Nuclear Studies in 2005. Report consists in general two parts. First consists of general information about location, management, scientific council, personnel financial support and conferences while the second one the scientific activity of Institute. This part is divided into subsections which present progress in research of the Institut Departments and Establishments. A Foreword to report written by Director of the Institute prof. Ziemowit Sujkowski is also given.

  6. Annual Report 2007

    Energy Technology Data Exchange (ETDEWEB)

    Chmielewska, D; Infeld, E; Zupranski, P [The Andrzej Soltan Institute for Nuclear Studies, Swierk-Otwock (Poland)

    2008-07-01

    The ''Annual Report 2007'' describes activities of Andrzej Soltan Institute for Nuclear Studies in 2007. Report consists of two parts. First one consist of of general information about location, management, scientific council, personnel, financial support and conferences while the second one describes the scientific activity of Institute. This part is divided into subsections which present progress in research of the Institut Departments and Establishments. A Foreword to all report written by Director of the Institute prof. Grzegorz Wrochna is also given.

  7. Annual Report 2005

    International Nuclear Information System (INIS)

    Chmielewska, D.; Infeld, E.; Zupranski, P.

    2006-06-01

    The ''Annual Report 2005'' describes activities of Andrzej Soltan Institute for Nuclear Studies in 2005. Report consists in general two parts. First consists of general information about location, management, scientific council, personnel financial support and conferences while the second one the scientific activity of Institute. This part is divided into subsections which present progress in research of the Institut Departments and Establishments. A Foreword to report written by Director of the Institute prof. Ziemowit Sujkowski is also given

  8. Annual Report 2007

    International Nuclear Information System (INIS)

    Chmielewska, D.; Infeld, E.; Zupranski, P.

    2008-01-01

    The ''Annual Report 2007'' describes activities of Andrzej Soltan Institute for Nuclear Studies in 2007. Report consists of two parts. First one consist of of general information about location, management, scientific council, personnel, financial support and conferences while the second one describes the scientific activity of Institute. This part is divided into subsections which present progress in research of the Institut Departments and Establishments. A Foreword to all report written by Director of the Institute prof. Grzegorz Wrochna is also given

  9. Areva 2005 annual report

    International Nuclear Information System (INIS)

    2005-01-01

    This annual report contains information on AREVA's objectives, prospects and strategies, particularly in Chapters 4 and 7, as well as contains information on the markets, market shares and competitive position of the AREVA group. Content: 1 - Person responsible for the annual report and persons responsible for auditing the financial statements; 2 - Information pertaining to the transaction; 3 - General information on the company and share capital: Information on AREVA, Information on share capital and voting rights, Investment certificate trading, Dividends, Organizational chart of the AREVA group, Equity interests, Shareholders' agreements; 4 - Information on company operations, 5 - New developments and future prospects: Overview and strategy of the AREVA group, The Nuclear Power and Transmission and Distribution markets, AREVA group energy businesses, Front End Division, Reactors and Services Division, Back End Division, Transmission and Distribution Division, Major Contracts, The Group's principal sites, AREVA's customers and suppliers, Human resources, Sustainable Development and Continuous Improvement, Capital spending programs, Research and development, intellectual property and brand name programs, Risk and insurance; 6 - Assets - Financial position - financial performance: Analysis of and comments on the Group's financial position and performance, Human Resources report 2005, Environmental report, Consolidated financial statements, Notes to the consolidated financial statements, AREVA SA Financial statements 2005, Notes to the corporate financial statements; 7 - Corporate governance: Composition and functioning of administrative bodies, Executive compensation, Profit-sharing plans, AREVA Values Charter, Annual General Meeting of Shareholders of May 2, 2006; 8 - Recent developments and outlook: Events subsequent to year-end closing for 2005, Outlook

  10. Uranium industry annual 1994

    International Nuclear Information System (INIS)

    1995-01-01

    The Uranium Industry Annual 1994 (UIA 1994) provides current statistical data on the US uranium industry's activities relating to uranium raw materials and uranium marketing during that survey year. The UIA 1994 is prepared for use by the Congress, Federal and State agencies, the uranium and nuclear electric utility industries, and the public. It contains data for the 10-year period 1985 through 1994 as collected on the Form EIA-858, ''Uranium Industry Annual Survey.'' Data collected on the ''Uranium Industry Annual Survey'' (UIAS) provide a comprehensive statistical characterization of the industry's activities for the survey year and also include some information about industry's plans and commitments for the near-term future. Where aggregate data are presented in the UIA 1994, care has been taken to protect the confidentiality of company-specific information while still conveying accurate and complete statistical data. A feature article, ''Comparison of Uranium Mill Tailings Reclamation in the United States and Canada,'' is included in the UIA 1994. Data on uranium raw materials activities including exploration activities and expenditures, EIA-estimated resources and reserves, mine production of uranium, production of uranium concentrate, and industry employment are presented in Chapter 1. Data on uranium marketing activities, including purchases of uranium and enrichment services, and uranium inventories, enrichment feed deliveries (actual and projected), and unfilled market requirements are shown in Chapter 2

  11. Annual Report 2010-2011

    International Development Research Centre (IDRC) Digital Library (Canada)

    ... 2013-2014 Annual Report 2013-2014 Rapport annuel 2013-2014 Annual Report 2014-2015 Annual Report 2014-2015 Rapport annuel 2014-2015 Investing in Solutions Strategic Plan 2015-2020 Investing in Solutions Strategic Plan 2015-2020 Investir dans des solutions Plan stratégique 2015-2020 Financial statements ...

  12. Table of members of quasi-bands

    International Nuclear Information System (INIS)

    Sakai, Mitsuo.

    1984-04-01

    The probable members of the quasi-bands in even-even nuclei for Z between 6 and 100 are listed in this table. The terms quasi-bands have been introduced in the so-called spherical regions as the counter parts of the collective bands in the deformed regions. In the present compilation, the data for deformed nuclei are classified for convenience under the same titles, Quasi-Ground Band, Quasi-Beta Band and Quasi-Gamma Band, as are used for other nuclear regions. The present edition covers the literature through September, 1983. Fifteen newly discovered nuclides are included. The classification of energy level into quasi-bands is made on the basis of the systematic trend in the data over large groups of nuclei. (Kato, T.)

  13. A Novel Ku-Band/Ka-Band and Ka-Band/E-Band Multimode Waveguide Couplers for Power Measurement of Traveling-Wave Tube Amplifier Harmonic Frequencies

    Science.gov (United States)

    Wintucky, Edwin G.; Simons, Rainee N.

    2015-01-01

    This paper presents the design, fabrication and test results for a novel waveguide multimode directional coupler (MDC). The coupler, fabricated from two dissimilar frequency band waveguides, is capable of isolating power at the second harmonic frequency from the fundamental power at the output port of a traveling-wave tube (TWT) amplifier. Test results from proof-of-concept demonstrations are presented for a Ku-band/Ka-band MDC and a Ka-band/E-band MDC. In addition to power measurements at harmonic frequencies, a potential application of the MDC is in the design of a satellite borne beacon source for atmospheric propagation studies at millimeter-wave (mm-wave) frequencies (Ka-band and E-band).

  14. Dual-band frequency selective surface with large band separation and stable performance

    Science.gov (United States)

    Zhou, Hang; Qu, Shao-Bo; Peng, Wei-Dong; Lin, Bao-Qin; Wang, Jia-Fu; Ma, Hua; Zhang, Jie-Qiu; Bai, Peng; Wang, Xu-Hua; Xu, Zhuo

    2012-05-01

    A new technique of designing a dual-band frequency selective surface with large band separation is presented. This technique is based on a delicately designed topology of L- and Ku-band microwave filters. The two band-pass responses are generated by a capacitively-loaded square-loop frequency selective surface and an aperture-coupled frequency selective surface, respectively. A Faraday cage is located between the two frequency selective surface structures to eliminate undesired couplings. Based on this technique, a dual-band frequency selective surface with large band separation is designed, which possesses large band separation, high selectivity, and stable performance under various incident angles and different polarizations.

  15. Government Expenditure on Growth Strategies and Poverty ...

    African Journals Online (AJOL)

    The Household Budget Survey 2011/12 shows that majority of Tanzanians, about 74 .... Table 3: Annual Growth Rates in Economic Activities at 2001 prices (%) ... hotels and restaurants, transport, communications, financial intermediation, real ...

  16. Budget deficit, money growth and inflation: Empirical evidence from Vietnam

    OpenAIRE

    Khieu Van, Hoang

    2014-01-01

    This study empirically examines the nexus among budget deficit, money supply and inflation by using a monthly data set from January 1995 to December 2012 and a SVAR model with five endogenous variables, inflation, money growth, budget deficit growth, real GDP growth and interest rate. Since real GDP and budget deficit are unavailable on the monthly basis, we interpolate those series using Chow and Lin’s (1971) annualized approach from their annual series. Overall, we found that money growth h...

  17. Whistler Triggered Upper Band Chorus Observed in Alaska

    Science.gov (United States)

    Hosseini, P.; Golkowski, M.

    2017-12-01

    VLF radiation from lightning discharges is one of several sources of energy injection into the inner magnetosphere from the Earth. Lightning discharges initially produce a broadband impulse or `sferic' but after propagation in the dispersive magnetosphere this waveform soon becomes quasi narrow band with the characteristic spectrographic form of the whistler. Most of the lightning induced VLF wave energy injected into the magnetosphere will be unducted with a k-vector which becomes increasingly oblique. Although unducted radiation is ubiquitous throughout the inner magnetosphere, it is generally of a low amplitude due to Landau damping and is not expected to produce strong nonlinear phenomena such as triggered emissions and chorus waves. However, VLF wave energy ducted or trapped in field-aligned plasma density enhancements can have relatively large amplitudes due to focusing and also linear cyclotron resonance growth. Therefore high amplitude ducted whistler waves can trigger a number of complex nonlinear phenomena. These include the triggering of VLF emissions and triggering of VLF hiss or chorus. Such phenomena are generally considered to result from nonlinear electron cyclotron phase trapping. Observation of such VLF emissions triggered by natural whistlers have been reported since the 1970s in Antarctica. We present observations of whistlers triggered upper band chorus emission from Alaska. Dispersion analyze of whistlers determine the L-shell range to be 4.5 clear frequency band gap between upper and lower band of the observed chorus emissions. The observations point to ducted chorus generation in the vicinity of the plasmapause boundary.

  18. Delayed growth

    Science.gov (United States)

    ... Slow rate of growth; Retarded growth and development; Growth delay Images Toddler development References Cooke DW, Divall SA, Radovick S. Normal and aberrant growth in children. In: Melmed S, Polonsky KS, Larsen PR, ...

  19. Photonic band gap structure simulator

    Science.gov (United States)

    Chen, Chiping; Shapiro, Michael A.; Smirnova, Evgenya I.; Temkin, Richard J.; Sirigiri, Jagadishwar R.

    2006-10-03

    A system and method for designing photonic band gap structures. The system and method provide a user with the capability to produce a model of a two-dimensional array of conductors corresponding to a unit cell. The model involves a linear equation. Boundary conditions representative of conditions at the boundary of the unit cell are applied to a solution of the Helmholtz equation defined for the unit cell. The linear equation can be approximated by a Hermitian matrix. An eigenvalue of the Helmholtz equation is calculated. One computation approach involves calculating finite differences. The model can include a symmetry element, such as a center of inversion, a rotation axis, and a mirror plane. A graphical user interface is provided for the user's convenience. A display is provided to display to a user the calculated eigenvalue, corresponding to a photonic energy level in the Brilloin zone of the unit cell.

  20. AREVA 2010 annual results

    International Nuclear Information System (INIS)

    2010-01-01

    Areva's 44-billion euro backlog at the end of 2010 gives the group excellent visibility, enabling it to confirm its outlook for 2012: 12 billion euros in revenue, double-digit operating margin and significantly positive free operating cash flow. Revenue rose by 575 million euros in 2010, or 6.7%, in comparison to 2009 and operating income excluding particular items improved by 201 million euros, nearly 2 points of revenue. In the past two years, Areva has raised 7.1 billion euros and secured its liquidity to ensure its development. In 2011, Areva is going to simplify the group's capital structure by listing ordinary shares of AREVA. At that time, the group may launch the employee share-holding plan, something it has ardently sought for several years as a way for its employees to share in AREVA's growth. The consolidated backlog stood at 44.204 billion euros at December 31, 2010, up 2.0% compared with that at December 31, 2009. The group's consolidated revenue came to 9.104 billion euros in 2010, up 6.7% on a reported basis and 5.1% like-for-like compared with 2009. Excluding particular items, operating income rose by 1.9 point, going from 3.9% in 2009 to 5.8% in 2010, giving operating income of 532 million euros (331 million euros in 2009). Net income attributable to equity owners of the parent came to 883 million euros in 2010, an increase of 331 million euros compared with 2009. Operating cash flow before capex was 923 million euros, an increase of 548 million euros compared with 2009, when it was 375 million euros, due to the visible improvement in EBITDA and working capital requirement. The change in gross capex (excluding acquisitions) from 1.780 billion euros in 2009 to 1.966 billion euros in 2010 is due to the ramp-up of construction programs, particularly in Enrichment. In 2010, almost 60% of the group's capital spending was on sites in France. The acquisitions made in Renewable Energies in 2010 in the amount of 210 million euros (100% of Ausra and the

  1. Broad-band beam buncher

    International Nuclear Information System (INIS)

    Goldberg, D.A.; Flood, W.S.; Arthur, A.A.; Voelker, F.

    1986-01-01

    This patent describes a broad-band beam buncher. This beam buncher consists of: a housing adapted to be eacuated, an electron gun in the housing for producing a beam of electrons, buncher means in the housing forming a buncher cavity which has an entrance opening for receiving the electron beam and an exit opening through which the electron beam passes out of the buncher cavity, a drift tube electrode in the buncher cavity and disposed between the entrance opening and the exit opening with first and second gaps between the drift tube electrode and the entrance and exit openings, the drift tube electrode which has a first drift space through which the electron beam passes in traveling between the entrance and exit openings, modulating means for supplying an ultrahigh frequeny modulating signal to the drift tube electrode for producing velocity modulation of the electrons in the electron beam as the electrons pass through the buncher cavity and the drift tube electrode between the entrance opening and the exit opening, drift space means in the housing forming a second drift space for receiving the velocity modulated electron beam from the exit opening, the velocity modulated electron beam being bunched as it passes along the second drift space, the drift space means has a discharge opening through which the electron beam is discharged from the second drift space after being bunched therein, the modulating means containing a signal source for producing an ultrahigh frequency signal, a transmission line connected between the signal source and the drift tube electrode, and terminating means connected to the drift tube electrode for terminating the transmission line in approximately its characteristic impedance to afford a broad response band with minimum 6 variations therein

  2. Electrically controlled band gap and topological phase transition in two-dimensional multilayer germanane

    International Nuclear Information System (INIS)

    Qi, Jingshan; Li, Xiao; Qian, Xiaofeng

    2016-01-01

    Electrically controlled band gap and topological electronic states are important for the next-generation topological quantum devices. In this letter, we study the electric field control of band gap and topological phase transitions in multilayer germanane. We find that although the monolayer and multilayer germananes are normal insulators, a vertical electric field can significantly reduce the band gap of multilayer germananes owing to the giant Stark effect. The decrease of band gap eventually leads to band inversion, transforming them into topological insulators with nontrivial Z_2 invariant. The electrically controlled topological phase transition in multilayer germananes provides a potential route to manipulate topologically protected edge states and design topological quantum devices. This strategy should be generally applicable to a broad range of materials, including other two-dimensional materials and ultrathin films with controlled growth.

  3. Band 3 in aging and neurological disease.

    Science.gov (United States)

    Kay, M M

    1991-01-01

    Senescent cell antigen appears on old cells and marks them for death by initiating the binding of IgG autoantibody and subsequent removal by phagocytes in mammals and other vertebrates. We have created a synthetic aging antigen that blocks binding of IgG to senescent cells in vitro. Synthetic senescent cell antigen might be effective in preventing cellular destruction in vivo in certain diseases, and can be used to manipulate cellular life span in situ. Senescent cell antigen is generated by the modification of an important structural and transport membrane molecule, protein band 3. Band 3 is present in cellular, nuclear, Golgi, and mitochondrial membranes as well as in cell membranes. Band 3 proteins in nucleated cells participate in cell surface patching and capping. Band 3 maintains acid-base balance by mediating the exchange of anions (e.g., chloride, bicarbonate), and is the binding site for glycolytic enzymes. It is responsible for CO2 exchange in all tissues and organs. Thus, it is the most heavily used anion transport system in the body. Band 3 is a major transmembrane structural protein which attaches the plasma membrane to the internal cell cytoskeleton by binding to band 2.1 (ankyrin). Oxidation generates senescent cell antigen in situ. Band 3 is present in the central nervous system, and differences have been described in band 3 between young and aging brain tissue. One autosomal recessive neurological disease, choreoacanthocytosis, is associated with band 3 abnormalities. The 150 residues of the carboxyl terminus segment of band 3 appear to be altered. In brains from Alzheimer's disease patients, antibodies to aged band 3 label the amyloid core of classical plaques and the microglial cells located in the middle of the plaque in tissue sections, and an abnormal band 3 in immunoblots. Band 3 protein(s) in mammalian brain performs the same functions as that of erythroid band 3. These functions is anion transport, ankyrin binding, and generation of

  4. Comportamento ingestivo de ovinos no período diurno em pastagem de azevém anual em diferentes estádios fenológicos Diurnal ingestive behavior of sheep grazing annual ryegrass at different phenological growth stages

    Directory of Open Access Journals (Sweden)

    Renato Borges de Medeiros

    2007-02-01

    Full Text Available Este trabalho foi realizado com o objetivo de avaliar o comportamento ingestivo no período diurno de ovelhas Corriedale em final de gestação e início de lactação sob pastejo em uma área de 1,3 ha de azevém anual (Lolium multiflorum Lam. nos estádios vegetativo, pré-florescimento e de florescimento. Foram determinados o tempo de pastejo, a taxa de bocado, o tamanho de bocado, o teor de PB da forragem e os consumos de MS e PB. Os maiores tempos de pastejo e de consumo de MS e PB, para os três estádios do azevém, foram observados ao final da tarde. Nos estádios vegetativo e pré-florescimento, os tempos de pastejo e os consumos de MS e PB registrados no início da manhã (7 às 7h50 foram semelhantes aos verificados no final da tarde. No estádio pré-florescimento, registraram-se ainda nestes horários de pico de pastejo as maiores taxas de bocado e peso de bocado, as quais, associadas ao maior tempo de pastejo, determinaram os maiores consumos de forragem ao longo do dia. Os menores tempos de pastejo ocorreram das 8 às 9h50 durante o estádio vegetativo; das 8 às 8h50 e das 12 às 12h50 durante o pré-florescimento; e das 7 às 8h50 durante o florescimento. Conseqüentemente, nesses mesmos horários foram verificados os menores consumos de MS e PB para os três estádios fenológicos estudados.The objective of this trial was to evaluate the diurnal ingestive behavior of late pregnant-early lactating Corriedale ewes grazing annual ryegrass (Lolium multiflorum Lam. at different phenological growth stages (vegetative, pre-flowering and flowering. Animals were maintained in paddocks of 1.3 ha from July 21 to November 11 of 2000. Grazing time, bite rate, bite weight, crude protein (CP content per bite, and forage dry matter (DM and CP intakes were measured. The longest grazing time and the greatest forage DM and CP intakes were observed at late afternoon on all three phenological growth stages of annual ryegrass. Grazing time and

  5. AAER Inc. 2007 annual report

    Energy Technology Data Exchange (ETDEWEB)

    Gagnon, D.; Gauthier, J.

    2009-07-01

    This report contains financial information from AAER Inc., a wind turbine manufacturer located in Bromont Quebec. AAER uses proven European technologies to manufacture high capacity wind turbines of 1 MW or more for the North American and European markets. Their wind turbines maintain high performance in various wind conditions and are sold at competitive prices. AAER has also begun implementing procedures to gradually manufacture some of its own key components, using technology transfers from its current suppliers. In order to maximize control over its supply chain, AAER plans to consolidate its supply chain for its major components. A gradual integration strategy will minimize risk and will ensure a constant supply of key components such as blades, converters, generators and electronic control boxes, while lowering manufacturing costs, minimizing financial risk, accelerating the development of new versions of components and increasing profit margins. This report included a review of business strategies and operations, as well as plans for growth development in Canada and internationally. The company's major achievements of 2007 were also listed. This annual report included an auditor's report of the company's activities along with an operations review, consolidated financial statements, a summarized balance sheet of assets, liabilities/surplus and net assets, and common share information. Revenue and expenditure statements were also summarized. tabs., figs.

  6. Annual Symposium in Electronics Packaging

    CERN Document Server

    1991-01-01

    Each May, the Continuing Education Division of the T.J.Watson School of Engineering, Applied Science and Technology at the State University of New York at Binghamton sponsors an Annual Symposium in Electronics Packaging in cooperation with local professional societies (IEEE, ASME, SME, IEPS) and UnlPEG (the University-Industry Partnership for Economic Growth.) Each volume of this Electronics Packaging Forum series is based on the the preceding Symposium, with Volume Two based on the 1990 presentations. The Preface to Volume One included a brief definition of the broad scope of the electronics packaging field with some comments on why it has recently assumed such a more prominent priority for research and development. Those remarks will not be repeated here; at this point it is assumed that the reader is a professional in the packaging field, or possibly a student of one of the many academic disciplines which contribute to it. It is worthwhile repeating the series objectives, however, so the reader will be cle...

  7. AAER Inc. 2007 annual report

    International Nuclear Information System (INIS)

    Gagnon, D.; Gauthier, J.

    2009-01-01

    This report contains financial information from AAER Inc., a wind turbine manufacturer located in Bromont Quebec. AAER uses proven European technologies to manufacture high capacity wind turbines of 1 MW or more for the North American and European markets. Their wind turbines maintain high performance in various wind conditions and are sold at competitive prices. AAER has also begun implementing procedures to gradually manufacture some of its own key components, using technology transfers from its current suppliers. In order to maximize control over its supply chain, AAER plans to consolidate its supply chain for its major components. A gradual integration strategy will minimize risk and will ensure a constant supply of key components such as blades, converters, generators and electronic control boxes, while lowering manufacturing costs, minimizing financial risk, accelerating the development of new versions of components and increasing profit margins. This report included a review of business strategies and operations, as well as plans for growth development in Canada and internationally. The company's major achievements of 2007 were also listed. This annual report included an auditor's report of the company's activities along with an operations review, consolidated financial statements, a summarized balance sheet of assets, liabilities/surplus and net assets, and common share information. Revenue and expenditure statements were also summarized. tabs., figs

  8. The SRTR/OPTN Annual Data Report

    Science.gov (United States)

    ... Annual Data Report The SRTR/OPTN Annual Data Report Statistics on donation and transplantation in the United ... US in 2015. The SRTR/OPTN Annual Data Report SRTR/OPTN Annual Data Report Learn more from ...

  9. Enhancement of computer program SPECTRAN to provide optional synthesis of 1/12 octave-band and critical-band spectra from 1/3 octave-band spectra

    Energy Technology Data Exchange (ETDEWEB)

    Chang, Young-Soo [Argonne National Lab., IL (United States); Liebich, R.E. [Raytheon Environmental Services Company, Cambridge, MA (United States)

    1997-07-01

    This paper describes greatly enhanced version of the computer program SPECTRAN, which was initially presented in Paper No. 96-RA104.01, at the A&WMA 89th Annual Meeting in June 1996. The program has had three basic upgrades since that time. The first is provision of an option to use either batch-mode input from previously prepared data files or a {open_quotes}user-friendly{close_quotes} interactive input routine. The latter is primarily for first-time users and those having only one, or very few, spectra to process. The second improvement is the synthesis of 1/12 octave-band spectra from 1/3 octave-band spectra, with {open_quotes}tone correction,{close_quotes} in a manner similar to that used in the original version of the program. The third fundamental improvement is addition of a unique new capability to synthesize classic {open_quotes}critical-band{close_quotes} spectra from 1/3 octave-band input spectra. Critical-band spectra are also termed {open_quotes}equivalent-rectangular-bandwidth (ERB){close_quotes} and {open_quotes}equal-contribution-to-speech (ECS){close_quotes} spectra.

  10. Band structure of germanium carbides for direct bandgap silicon photonics

    Energy Technology Data Exchange (ETDEWEB)

    Stephenson, C. A., E-mail: cstephe3@nd.edu; Stillwell, R. A.; Wistey, M. A. [Department of Electrical Engineering, University of Notre Dame, Notre Dame, Indiana 46556 (United States); O' Brien, W. A. [Rigetti Quantum Computing, 775 Heinz Avenue, Berkeley, California 94710 (United States); Penninger, M. W. [Honeywell UOP, Des Plaines, Illinois 60016 (United States); Schneider, W. F. [Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556 (United States); Gillett-Kunnath, M. [Department of Chemistry, Syracuse University, Syracuse, New York 13244 (United States); Zajicek, J. [Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556 (United States); Yu, K. M. [Department of Physics and Materials Science, City University of Hong Kong, Hong Kong (China); Kudrawiec, R. [Institute of Physics, Wroclaw University of Technology, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw (Poland)

    2016-08-07

    Compact optical interconnects require efficient lasers and modulators compatible with silicon. Ab initio modeling of Ge{sub 1−x}C{sub x} (x = 0.78%) using density functional theory with HSE06 hybrid functionals predicts a splitting of the conduction band at Γ and a strongly direct bandgap, consistent with band anticrossing. Photoreflectance of Ge{sub 0.998}C{sub 0.002} shows a bandgap reduction supporting these results. Growth of Ge{sub 0.998}C{sub 0.002} using tetrakis(germyl)methane as the C source shows no signs of C-C bonds, C clusters, or extended defects, suggesting highly substitutional incorporation of C. Optical gain and modulation are predicted to rival III–V materials due to a larger electron population in the direct valley, reduced intervalley scattering, suppressed Auger recombination, and increased overlap integral for a stronger fundamental optical transition.

  11. 2000 Annual report

    International Nuclear Information System (INIS)

    2001-01-01

    This annual report presents information of the main activities on the scope of radiation protection and nuclear safety of the Nuclear Regulatory Authority (NRA) of the Argentina during 2000. The following activities and developed topic in this report describe: the Argentine regulatory system; the evolution of the nuclear regulatory activities in the Argentina since the beginnings in the National Atomic Energy Commission (NAEC) of Argentina; the nuclear regulatory laws and standards; the safeguards and inspection of the nuclear facilities and nuclear power plants; the radiological emergency systems; the environmental monitoring; the institutional relations with national and international organizations; the biological and physics dosimetry; the training courses and meetings; the economic and human recourses

  12. Annual Report 2006

    Energy Technology Data Exchange (ETDEWEB)

    Michalik, J; Smulek, W; Godlewska-Para, E [eds.

    2007-07-01

    The Annual Report of the Institute of Nuclear Chemistry and Technology (Warsaw, Poland) describes achievements of the Institute in 2006 obtained in seven fields: (1) radiation chemistry and technology, (2) radiochemistry and coordination chemistry, (3) radiobiology, (4) application of nuclear methods in material and process engineering, (5) design of instruments based on nuclear techniques, (6) trace analysis and radioanalytical techniques, (7) environmental research. In total - 83 detailed papers prepared by the Institute workers and collaborating scientists are presented. General information on the Institute status, personnel activity, international cooperation and publications are presented.

  13. 1977 Annual Typhoon Report

    Science.gov (United States)

    1995-01-01

    George T. McKaige, USN *CAPT Frederick P. Milwer, USAF CAPT Alan W. Hassebrock, USAF CAPT Charles P. Guard , USAF CAPT”John D. Shewchuk, USAF ENS Edward...Det 1, lWW - USAF 1977 ANNUAL TYPHOON REPORT *Departed during 1977 season FRONTCOVER: ln&a.tedphoztogzaphof a - tmJ -A.toZmb.iaZatAn o.ulh a M dtig -&A...ships provide day and night coverage in the JTWC area of responsibility. Interpretation of this satellite imagery pro- vides cyclone positions, and for

  14. Uranium industry annual, 1986

    International Nuclear Information System (INIS)

    1987-01-01

    Uranium industry data collected in the EIA-858 survey provide a comprehensive statistical characterization of annual activities of the industry and include some information about industry plans over the next several years. This report consists of two major sections. The first addresses uranium raw materials activities and covers the following topics: exploration activities and expenditures, resources and reserves, mine production of uranium, production of uranium concentrate, and industry employment. The second major section is concerned with the following uranium marketing activities: uranium purchase commitments, uranium prices, procurement arrangements, uranium imports and exports, enrichment services, inventories, secondary market activities utility market requirements and related topics

  15. NIRE annual report 1996

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-12-31

    The National Institute for Resources and Environment (NIRE) has a R & D concept of `ecotechnology` that aims to protect the environment from degradation whilst promoting sustainable development. This annual report presents summaries of 32 recent research efforts on such topics as: emission control of sulfur and nitrogen oxides from advanced coal combustors; catalysts for diesel NO{sub x} removal; measuring dust from stationary sources; software for life cycle assessment; marine disposal of CO{sub 2}; emissions of greenhouse gases from coal mines in Japan; structural changes in coal particles during gasification; solubilization and desulfurization of high sulfur coal with trifluoromethane sulfuroic acid; and oxidation mechanisms of H{sub 2}S.

  16. Annual report 1975

    International Nuclear Information System (INIS)

    1976-02-01

    The annual report of the PTB for 1975 deals in part 1 with organization and activities of the executive committee and the administration, in the second part with work carried out by the departments mechanics, electric power, heat, optics, acoustics, nuclear physics, reactor radiation, general technical-scientific services, and the institute in Berlin. The second part deals with examinations, authorizations, permits, cooperation, advisory activities and scientific services. Part three presents R and D activities carried out in the nine departments in the form of scientific summaries. (HK) [de

  17. Annual report 1980

    International Nuclear Information System (INIS)

    1981-01-01

    This annual report contains extended abstracts about the research done at the named institute. These abstracts concern the development of accelerators and ion sources, the construction of the magnetic spectrograph and radiation detectors, the investigation of solids and microstructures by nuclear methods, the development of electronic circuits, the advances in data processing, the study of heavy ion reactions, nuclear structure, and reaction mechanisms, the research on atomic physics and the interaction of charged particles with matter, the studies in medium and high energy physics, the theoretical studies of nuclear structure, and the research in cosmochemistry. Furthermore a list of publications is added. (orig./HSI) [de

  18. Annual report 1982

    International Nuclear Information System (INIS)

    This annual report describes the work during 1982 of the Nuclear Physics Institute of Lyon. The achievement of SARA postaccelerator in Grenoble, realized in collaboration with the Nuclear Science Institute, permits to pursue new lines of research in heavy ion physics. A new isotope separator was realized by the nuclear spectroscopy group and the high energy experimental group cooperates with the LAPP to build in international collaboration the L3 detector for LEP. The topics covered include theoretical physics, high energy and intermediate energy physics, nuclear physics and interdisciplinary physics, such as solid state physics and neutronics [fr

  19. CEA Annual report 2007

    International Nuclear Information System (INIS)

    2007-01-01

    The CEA, a prominent player in research development and innovation, is active in three main domains: energy, health care and information technology, defense and security. This annual report presents the CEA activities for the year 2007 in these three main areas: science and technology working for nuclear deterrence and global security, the energies without greenhouse effect gases emission against the climatic change, researches in the information sciences and technologies for a better communication and health. The CEA safety, organization, communication and international relations are also presented. (A.L.B.)

  20. 1996 annual report

    International Nuclear Information System (INIS)

    1996-01-01

    This 1996 issue of the annual report of the French Commissariat a l'Energie Atomique (CEA) gives a general overview of CEA organization, activities, human resources, international relations and external communication with some budgetary informations. The main activities described concern the national defence, the fuel cycle, the nuclear reactors, the condensed matter and life sciences, the advanced technologies, the protection and transfer of knowledge and technologies, the environmental activities, the management and processing of nuclear wastes, the nuclear protection and safety, the technical and scientific information, the teaching and training, the scientific prizes, the committees, councils and commissions. (J.S.)

  1. Petroleum marketing annual, 1990

    International Nuclear Information System (INIS)

    1991-01-01

    The Petroleum Marketing Annual contains statistical data on a variety of crude oils and refined petroleum products. The publication provides statistics on crude oil costs and refined petroleum products sales for use by industry, government, private sector analysts, educational institutions, and consumers. Data on crude oil include the domestic first purchase price, the free-on-board and landed cost of imported crude oil, and the refiners' acquisition cost of crude oil. Sales data for motor gasoline, distillates, residuals, aviation fuels, kerosene, and propane are presented. (VC)

  2. Renewable energy annual 1996

    International Nuclear Information System (INIS)

    1997-03-01

    This report presents summary data on renewable energy consumption, the status of each of the primary renewable technologies, a profile of each of the associated industries, an analysis of topical issues related to renewable energy, and information on renewable energy projects worldwide. It is the second in a series of annual reports on renewable energy. The renewable energy resources included in the report are biomass (wood and ethanol); municipal solid waste, including waste-to-energy and landfill gas; geothermal; wind; and solar energy, including solar thermal and photovoltaic. The report also includes various appendices and a glossary

  3. Annual report 1991

    International Nuclear Information System (INIS)

    1991-01-01

    In 1991, the Corporation undertook an examination of its future direction, having completed the divestment mandate assigned to it in 1986. This examination resulted in a reorientation of the Corporation's objectives toward enhancing participation in the energy sector by the Aboriginal Peoples and northern communities of the province. The Corporation's cash assets increased to $33 million in 1991, largely attributable to a Suncor dividend of $14.2 million. The financial statements have been prepared by management in accordance with generally accepted accounting principles. Management is also responsible for the other information in the annual report, which is consistent with that contained in the financial statements

  4. Annual report 1975

    International Nuclear Information System (INIS)

    1976-01-01

    A survey is presented of: a) Research activities carried out during 1975 within the framework of the scientific sections of the Institute, b) the central technical seπtions and their services, and c) the organizational structure. Enclosed are: 1) Report on the activities of the administrative management, the administration, and general services, 2) a list of all publications and conference reports issued by IPP Garching during 1975, and an annual report by the Institut fuer Plasmaphysik of the University of Stuttgart, an institute financed by IPP Garching. (GG) [de

  5. International energy annual 1995

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-12-01

    The International Energy Annual presents information and trends on world energy production and consumption for petroleum, natural gas, coal, and electricity. Production and consumption data are reported in standard units as well as British thermal units (Btu). Trade and reserves are shown for petroleum, natural gas, and coal. Data are provided on crude oil refining capacity and electricity installed capacity by type. Prices are included for selected crude oils and for refined petroleum products in selected countries. Population and Gross Domestic Product data are also provided.

  6. Institute annual report 2004

    International Nuclear Information System (INIS)

    2005-01-01

    The mission of the ITU (Institute for Transuranium Elements) is to protect the European citizen against risk associated with the handling and storage of highly radioactive elements. The JRC (Joint Research Center) provide customer-driven scientific and technical support for the conception, development, implementation and monitoring of EU policies. In this framework this annual report presents the TU actions in: basic actinide research, spent fuel characterization, safety of nuclear fuels, partitioning and transmutation, alpha-immunotherapy/radiobiology, measurement of radioactivity in the environment, safeguards research and development. (A.L.B.)

  7. International energy annual 1995

    International Nuclear Information System (INIS)

    1996-12-01

    The International Energy Annual presents information and trends on world energy production and consumption for petroleum, natural gas, coal, and electricity. Production and consumption data are reported in standard units as well as British thermal units (Btu). Trade and reserves are shown for petroleum, natural gas, and coal. Data are provided on crude oil refining capacity and electricity installed capacity by type. Prices are included for selected crude oils and for refined petroleum products in selected countries. Population and Gross Domestic Product data are also provided

  8. Annual Report 1981

    International Nuclear Information System (INIS)

    1982-01-01

    This Annual Report covers the activities at the Kernfysisch Versneller Instituut (KVI) during the year 1981. It contains 74 short reports grouped under the headings: inelastic scattering studies, transfer and charge-exchange reactions, breakup reactions and fission studies, heavy-ion reactions, gamma, electron and X-ray spectroscopy, hyperfine interactions and nuclear orientation, weak interactions, IBA related studies, other theoretical studies, cyclotron and beam lines, data acquisition and data analysis, instrumentation and electronics and medical physics. Details are also presented of the personnel, scientific publications, internal reports, and attended and internal conferences and seminars. (C.F.)

  9. NPL 1999 Annual Report

    Energy Technology Data Exchange (ETDEWEB)

    None

    2000-01-01

    OAK-B135 NPL 1999 Annual Report. The Nuclear Physics Laboratory at the University of Washington in Seattle pursues a broad program of nuclear physics research. Research activities are conducted locally and at remote sites. The current program includes ''in-house'' research on nuclear collisions using the local tandem Van de Graaff and superconducting linac accelerators as well as local and remote non-accelerator research on fundamental symmetries and weak interactions and user-mode research on relativistic heavy ions at large accelerator facilities around the world.

  10. 1997 annual report

    International Nuclear Information System (INIS)

    1997-01-01

    This 1997 issue of the annual report of the French Commissariat a l'Energie Atomique (CEA) gives a general overview of the CEA organization, activities, human resources, international relations and communication with some budgetary information. The main activities described concern the national defence, the fuel cycle, the nuclear reactors, the nuclear protection and safety, the advanced technologies, the quasi-particles, the effects of ionizing radiations on humans, the medical imagery, the transfer of technology, the protection and valorization of knowledge, the radioactive wastes and spent fuels management, the training and teaching, the scientific prizes, the committees, councils and commissions. (O.M.)

  11. International energy annual, 1986

    International Nuclear Information System (INIS)

    1987-01-01

    The International Energy Annual presents current data and trends for production, consumption, stocks, imports, and exports for primary energy commodities in more than 190 countries, dependencies, and areas of special sovereignty. Also included are prices on crude petroleum and petroleum products in selected countries. This report is published to keep the public and other interested parties fully informed with respect to primary energy supplies on a global basis. The data presented have been largely derived from published sources and from United States Embassy personnel in foreign posts. The data have been converted to units of measurement and thermal values familiar to the American public

  12. Annual report 1974

    International Nuclear Information System (INIS)

    1974-01-01

    In this annual report, the Institut fuer Kernphysik of the university of Frankfurt/Main gives a survey on its scientific activities in the year 1974. Research activities in this period comprised the following fields: nuclear reactions and nuclear structure, heavy ion physics, atomic collision processes, neutron diffractometry and spectroscopy, solid state particle trace detectors, methods of nuclear analysis and mass spectroscopy, ion source development, electronics and data processing, and radiation protection. Furthermore, some application-oriented interdisciplinary research projects were started. (orig./AK) [de

  13. Annual report 1979

    International Nuclear Information System (INIS)

    1980-01-01

    This annual report contains extended abstracts about the research done at the named institute. These abstracts concern the development of accelerators and ion sources, the construction of the magnetic spectrograph and radiation detectors, the investigation of solids and microstructures by nuclear methods, the development of electronic circuits, the advances in data processing, the study of heavy ion reactions, nuclear structure, and reaction mechanisms, the research on atomic physics and the interaction of charged particles with matter, the studies in medium and high energy physics, the theoretical studies of nuclear structure, and the research in cosmochemistry. Furthermore a list of publications is added. (orig./HSI) [de

  14. Annual Energy Review 2001

    Energy Technology Data Exchange (ETDEWEB)

    Seiferlein, Katherine E. [USDOE Energy Information Administration (EIA), Washington, DC (United States)

    2002-11-01

    The Annual Energy Review (AER) is a statistical history of energy activities in the United States. It documents trends and milestones in U.S. energy production, trade, storage, pricing, and consumption. Each new year of data that is added to the time series—which now reach into 7 decades—extends the story of how Americans have acquired and used energy. It is a story of continual change as the Nation's economy grew, energy requirements expanded, resource availability shifted, and interdependencies developed among nations.

  15. Annual progress report 1981

    International Nuclear Information System (INIS)

    1982-01-01

    This annual progress report of the CEA Protection and Nuclear Safety Institut outlines a brief description of the progress made in each section of the Institut. Research activities of the Protection department include, radiation effects on man, radioecology and environment radioprotection techniques. Research activities of the Nuclear Safety department include, reactor safety analysis, fuel cycle facilities safety analysis, safety research programs. The third section deals with nuclear material security including security of facilities, security of nuclear material transport and monitoring of nuclear material management [fr

  16. NERSC 2001 Annual Report

    Energy Technology Data Exchange (ETDEWEB)

    Hules, John (editor)

    2001-12-12

    The National Energy Research Scientific Computing Center (NERSC) is the primary computational resource for scientific research funded by the DOE Office of Science. The Annual Report for FY2001 includes a summary of recent computational science conducted on NERSC systems (with abstracts of significant and representative projects); information about NERSC's current systems and services; descriptions of Berkeley Lab's current research and development projects in applied mathematics, computer science, and computational science; and a brief summary of NERSC's Strategic Plan for 2002-2005.

  17. Uranium industry annual, 1991

    International Nuclear Information System (INIS)

    1992-10-01

    In the Uranium Industry Annual 1991, data on uranium raw materials activities including exploration activities and expenditures, resources and reserves, mine production of uranium, production of uranium concentrate, and industry employment are presented in Chapter 1. Data on uranium marketing activities including domestic uranium purchases, commitments by utilities, procurement arrangements, uranium imports under purchase contracts and exports, deliveries to enrichment suppliers, inventories, secondary market activities, utility market requirements, and uranium for sale by domestic suppliers are presented in Chapter 2. A feature article entitled ''The Uranium Industry of the Commonwealth of Independent States'' is included in this report

  18. Annual report 2002

    International Nuclear Information System (INIS)

    2003-01-01

    This annual report presents the CEA (Atomic Energy Research Center) activities and research programs during the year 2002. the first part is devoted to the scientific development in the defense, nuclear energy, technology, fundamental research and valuation domains. The second and third parts present respectively the development conditions with the environment safety and the means of development with the human resources, the information technology, the training and the public relations. The fourth part situates the Cea enterprise in the economy and the fifth part the Cea development in the Europe and the world. The last part is the financial accounting. (A.L.B.)

  19. 1985. Annual progress report

    International Nuclear Information System (INIS)

    1986-01-01

    This annual progress report of the CEA Protection and Nuclear Safety Institut outlines a description of the progress made in each sections of the Institut Research activities of the different departments include: reactor safety analysis, fuel cycle facilities analysis; and associated safety research programs (criticality, sites, transport ...), radioecology and environmental radioprotection techniques; data acquisition on radioactive waste storage sites; radiation effects on man, studies on radioprotection techniques; nuclear material security including security of facilities, security of nuclear material transport, and monitoring of nuclear material management; nuclear facility decommissioning; and finally the public information [fr

  20. Institute annual report 2004

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2005-07-01

    The mission of the ITU (Institute for Transuranium Elements) is to protect the European citizen against risk associated with the handling and storage of highly radioactive elements. The JRC (Joint Research Center) provide customer-driven scientific and technical support for the conception, development, implementation and monitoring of EU policies. In this framework this annual report presents the TU actions in: basic actinide research, spent fuel characterization, safety of nuclear fuels, partitioning and transmutation, alpha-immunotherapy/radiobiology, measurement of radioactivity in the environment, safeguards research and development. (A.L.B.)

  1. Annual Report 2006

    International Nuclear Information System (INIS)

    Michalik, J.; Smulek, W.; Godlewska-Para, E.

    2007-01-01

    The Annual Report of the Institute of Nuclear Chemistry and Technology (Warsaw, Poland) describes achievements of the Institute in 2006 obtained in seven fields: (1) radiation chemistry and technology, (2) radiochemistry and coordination chemistry, (3) radiobiology, (4) application of nuclear methods in material and process engineering, (5) design of instruments based on nuclear techniques, (6) trace analysis and radioanalytical techniques, (7) environmental research. In total - 83 detailed papers prepared by the Institute workers and collaborating scientists are presented. General information on the Institute status, personnel activity, international cooperation and publications are presented

  2. Nordel annual report 2003

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2004-06-01

    Nordel is a body for co-operation between the transmission system operators (TSO's) in Denmark, Finland, Iceland, Norway and Sweden with the primary objective to create conditions for and develop an efficient and harmonised Nordic electricity market, regardless of national borders. Furthermore, Nordel serves as forum for contact between the TSOs and representatives of the market players in the Nordic countries. The statistical part of Nordel's annual report includes data about: Exchange of electricity; Gross consumption; Electricity generation; Installed capacity; Generation of condensing power; Net consumption; Transmission capacity; Pumped storage power; Losses; Occasional power to electric boilers; Total consumption; CHP generation. (BA)

  3. Nuclear Medicine Annual, 1989

    International Nuclear Information System (INIS)

    Freeman, L.M.; Weissmann, H.S.

    1989-01-01

    Among the highlights of Nuclear Medicine Annual, 1989 are a status report on the thyroid scan in clinical practice, a review of functional and structural brain imaging in dementia, an update on radionuclide renal imaging in children, and an article outlining a quality assurance program for SPECT instrumentation. Also included are discussions on current concepts in osseous sports and stress injury scintigraphy and on correlative magnetic resonance and radionuclide imaging of bone. Other contributors assess the role of nuclear medicine in clinical decision making and examine medicolegal and regulatory aspects of nuclear medicine

  4. TOTAL annual report 2003

    International Nuclear Information System (INIS)

    2004-01-01

    This 2003 annual report of the Group Total provides economical results and information of the society on the following topics: keys data, the corporate governance (Directors charter, board of directors, audit committee, nomination and remuneration committee, internal control procedures, compensation of directors and executive officers), the corporate social responsibility (environmental stewardship, the future of energy management, the safety enhancement, the human resources, ethics and local development), the investor relations, the management report, the upstream exploration and production, the downstream refining, marketing, trading and shipping, the chemicals and financial and legal information. (A.L.B.)

  5. 1992 Annual report

    International Nuclear Information System (INIS)

    1993-01-01

    Annual report of the Institut de Physique Nucleaire at Orsay (France). The main themes are presented. Concerning experimental research: nuclear structure, ground states and low energy excited states, high excitation energy nuclear states, nuclear matter and nucleus-nucleus collision, intermediate energy nuclear physics, radiochemistry, inter-disciplinary research, scientific information and communication; concerning theoretical physics: particles and fields (formal aspects and hadronic physics), chaotic systems and semi-classical methods, few body problems, nucleus-nucleus scattering, nucleus spectroscopy and clusters, statistical physics and condensed matter; concerning general activities and technological research: accelerators, detectors, applications in cryogenics, data processing, Isolde and Orion equipment

  6. Annual Report 2008

    International Nuclear Information System (INIS)

    Michalik, J.; Smulek, W.; Godlewska-Para, E.

    2009-01-01

    The Annual Report of the Institute of Nuclear Chemistry and Technology (Warsaw, Poland) describes achievements of the Institute in 2008 obtained in six fields: (1) radiation chemistry and physics, radiation technologies, (2) radiochemistry, stable isotopes, nuclear analytical methods, general chemistry, (3) radiobiology, (4) nuclear technologies and methods: process engineering, (5) nuclear technologies and methods: material engineering, structural studies, diagnostics, (6) nucleonic control systems and accelerators. In total - 76 detailed papers prepared by the Institute workers and collaborating scientists are presented. General information on the Institute status, personnel activity, international cooperation and publications are also given

  7. Annual Report 2007

    International Nuclear Information System (INIS)

    Michalik, J.; Smulek, W.; Godlewska-Para, E.

    2008-01-01

    The Annual Report of the Institute of Nuclear Chemistry and Technology (Warsaw, Poland) describes achievements of the Institute in 2007 obtained in seven fields: (1) radiation chemistry and physics, radiation technologies; (2) radiochemistry, stable isotopes, nuclear analytical methods, general chemistry; (3) radiobiology; (4) nuclear technologies and methods: process engineering; (5) nuclear technologies and methods: material engineering, structural studies, diagnostics; (6) nuclear technologies and methods: nucleonic control systems and accelerators. In total - 76 detailed papers prepared by the Institute workers and collaborating scientists are presented. General information on the Institute status, personnel activity, international cooperation and publications are also given

  8. IPP annual report 1981

    International Nuclear Information System (INIS)

    1982-01-01

    In part A of this annual report the tokamak and stellarator projects at the IPP are reported: ASDEX, ASDEX upgrade, JET collaboration, NET collaboration, Wendelstein VII-7, Wendelstein VII-AS, Wendelstein VII-X and stellarator reactor system studies. In part B the departments and research groups give a brief, but detailed report of the results in the field of research and development. In part C a review is presented of the IPP organisation. Part D includes the papers and conference reports published in 1981. Finally a brief description of the IPP projects at German universities is presented. (GG) [de

  9. Annual Energy Review 2010

    Energy Technology Data Exchange (ETDEWEB)

    None

    2011-10-01

    This twenty-ninth edition of the Annual Energy Review (AER) presents the U.S. Energy Information Administration’s (EIA) most comprehensive look at integrated energy statistics. The summary statistics on the Nation’s energy production, consumption, trade, stocks, and prices cover all major energy commodities and all energy-consuming sectors of the U.S. economy from 1949 through 2010. The AER is EIA’s historical record of energy statistics and, because the coverage spans six decades, the statistics in this report are well-suited to long-term trend analysis.

  10. Renewable energy annual 1996

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

    This report presents summary data on renewable energy consumption, the status of each of the primary renewable technologies, a profile of each of the associated industries, an analysis of topical issues related to renewable energy, and information on renewable energy projects worldwide. It is the second in a series of annual reports on renewable energy. The renewable energy resources included in the report are biomass (wood and ethanol); municipal solid waste, including waste-to-energy and landfill gas; geothermal; wind; and solar energy, including solar thermal and photovoltaic. The report also includes various appendices and a glossary.

  11. NPL 1999 Annual Report

    International Nuclear Information System (INIS)

    2000-01-01

    OAK-B135 NPL 1999 Annual Report. The Nuclear Physics Laboratory at the University of Washington in Seattle pursues a broad program of nuclear physics research. Research activities are conducted locally and at remote sites. The current program includes ''in-house'' research on nuclear collisions using the local tandem Van de Graaff and superconducting linac accelerators as well as local and remote non-accelerator research on fundamental symmetries and weak interactions and user-mode research on relativistic heavy ions at large accelerator facilities around the world

  12. Uranium Industry. Annual 1984

    International Nuclear Information System (INIS)

    Lawrence, M.S.S.

    1985-01-01

    This report provides a statistical description of activities of the US uranium industry during 1984 and includes a statistical profile of the status of the industry at the end of 1984. It is based on the results of an Energy Information Administration (EIA) survey entitled ''Uranium Industry Annual Survey'' (Form EIA-858). The principal findings of the survey are summarized under two headings - Uranium Raw Materials Activities and Uranium Marketing Activities. The first heading covers exploration and development, uranium resources, mine and mill production, and employment. The second heading covers uranium deliveries and delivery commitments, uranium prices, foreign trade in uranium, inventories, and other marketing activities. 32 figs., 48 tabs

  13. IKF annual report 1983

    International Nuclear Information System (INIS)

    Schmidt-Boecking, H.

    1983-01-01

    This annual report contains extended abstracts about the scientific work performed at the named institute descriptions of the operation of the Van-de-Graaf accelerator facilities of this institute and the work of the technical establishments, as well as a list of publications. The scientific work concerns nuclear structure and nuclear reactions, high energy heavy ion physics, atomic physics with fast ions, nuclear solid state physics, solid-state track detectors, applications of nuclear methods in solid state physics, ion source developments, apparative developments and data processing, as well as interdisciplinary collaborations. See hints under the relevant topics. (HSI) [de

  14. Annual Report 2007

    Energy Technology Data Exchange (ETDEWEB)

    Michalik, J; Smulek, W; Godlewska-Para, E [eds.

    2008-07-01

    The Annual Report of the Institute of Nuclear Chemistry and Technology (Warsaw, Poland) describes achievements of the Institute in 2007 obtained in seven fields: (1) radiation chemistry and physics, radiation technologies; (2) radiochemistry, stable isotopes, nuclear analytical methods, general chemistry; (3) radiobiology; (4) nuclear technologies and methods: process engineering; (5) nuclear technologies and methods: material engineering, structural studies, diagnostics; (6) nuclear technologies and methods: nucleonic control systems and accelerators. In total - 76 detailed papers prepared by the Institute workers and collaborating scientists are presented. General information on the Institute status, personnel activity, international cooperation and publications are also given.

  15. Annual report 1991

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1992-12-31

    In 1991, the Corporation undertook an examination of its future direction, having completed the divestment mandate assigned to it in 1986. This examination resulted in a reorientation of the Corporation`s objectives toward enhancing participation in the energy sector by the Aboriginal Peoples and northern communities of the province. The Corporation`s cash assets increased to $33 million in 1991, largely attributable to a Suncor dividend of $14.2 million. The financial statements have been prepared by management in accordance with generally accepted accounting principles. Management is also responsible for the other information in the annual report, which is consistent with that contained in the financial statements.

  16. Nordel annual report 2003

    International Nuclear Information System (INIS)

    2004-06-01

    Nordel is a body for co-operation between the transmission system operators (TSO's) in Denmark, Finland, Iceland, Norway and Sweden with the primary objective to create conditions for and develop an efficient and harmonised Nordic electricity market, regardless of national borders. Furthermore, Nordel serves as forum for contact between the TSOs and representatives of the market players in the Nordic countries. The statistical part of Nordel's annual report includes data about: Exchange of electricity; Gross consumption; Electricity generation; Installed capacity; Generation of condensing power; Net consumption; Transmission capacity; Pumped storage power; Losses; Occasional power to electric boilers; Total consumption; CHP generation. (BA)

  17. Annual report 1981

    International Nuclear Information System (INIS)

    1982-01-01

    This annual report contains extended abstracts about the research done at the named institute. These abstracts concern the development of accelerators and ion sources, the construction of the magnetic spectrograph and radiation detectors, the investigation of solids and microstructures by nuclear methods, the development of electronic circuits, the advances in data processing, the study of heavy ion reactions, nuclear structure, and reaction mechanisms, the research on atomic physics and the interaction of charged particles with matter, the studies of in medium and high energy physics, the theoretical studies of nuclear structure and the research in cosmophysics. Furthermore a list of publications is added. (orig./HSI) [de

  18. GKSS annual report 1987

    International Nuclear Information System (INIS)

    1988-01-01

    GKSS-Forschungszentrum Geesthacht GmbH, one of the national research centers, carries out R and D work on conservation of resources and environment, improvement of working conditions and on increase of economic competitiveness. The activities fall into the fields energy research and technology, basic technologies, marine research and techniques, health-environment-biotechnology. The annual report contains selected research work in summaries, the report on R and D work in reactor safety, materials research, environmental and climate research as well as environmental, and underwater techniques, describes the research institutes, cooperation with external partners, the organization, the budget, personnel, publications, including patent applications, and lectures. (HK) [de

  19. Intruder bands in Z = 51 nuclei

    International Nuclear Information System (INIS)

    LaFosse, D.R.

    1993-01-01

    Recent investigations of h 11/2 proton intruder bands in odd 51 Sb nuclei are reported. In addition to experiments performed at SUNY Stony Brook and Chalk River, data from Early Implementation of GAMMASPHERE (analysis in progress) are presented. In particular, the nuclei 109 Sb and 111 Sb are discussed. Rotational bands based on the πh 11/2 orbital coupled to a 2p2h deformed state of the 50 Sn core have been observed. These bands have been observed to high spin, and in the case of 109 Sb to a rotational frequency of 1.4 MeV, the highest frequency observed in a heavy nucleus. The dynamic moments of inertia in these bands decrease slowly with frequency, suggesting a gradual band termination. The systematics of such bands in 109-119 Sb will be discussed

  20. Amniotic band syndrome: A clinical brief

    Directory of Open Access Journals (Sweden)

    Dasaradha Ramireddy Malireddy

    2017-01-01

    Full Text Available Amniotic band syndrome (ABS results from bands of amnion entangling fetal parts. They may manifest as constriction rings or complex congenital anomalies resulting in stillbirth. Karyotyping is important for exclusion of inherited disorders and proper counseling. Two case reports one stillbirth and the other with constriction ring of fingers and mild hydronephrosis are presented. The aim of this paper is to make awareness and stress the need for doing thorough work-up in all cases of constriction bands.